TWI698295B - Boxless molding machine - Google Patents

Boxless molding machine Download PDF

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TWI698295B
TWI698295B TW105115244A TW105115244A TWI698295B TW I698295 B TWI698295 B TW I698295B TW 105115244 A TW105115244 A TW 105115244A TW 105115244 A TW105115244 A TW 105115244A TW I698295 B TWI698295 B TW I698295B
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sand
plate
mold
tank
sand tank
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TW105115244A
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TW201741049A (en
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坂口功一
寺部斗紀也
藤田辰美
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日商新東工業股份有限公司
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Abstract

本發明之無箱造模機包含：上砂箱及下砂箱，其等可夾持模型板；上砂槽，其配置於上砂箱之上方，下端部開口，且於其內部儲存鑄模砂；上板，其安裝於上砂槽之下端部，形成有供給口，且可於上砂箱內進退；第1下砂槽，於其內部儲存鑄模砂，且具有排出鑄模砂之第1連接口；第2下砂槽，其配置於下砂箱之下方，其上端部開口，且具有可連接於第1下砂槽之第1連接口之第2連接口，並儲存鑄模砂；下板，其安裝於第2下砂槽之上端部，形成有供給口，且可於下砂箱內進退；驅動部，其使第2下砂槽於上下方向移動；及調整驅動部，其使第1下砂槽於上下方向移動。 The boxless molding machine of the present invention includes: an upper sand box and a lower sand box, which can hold the model plate; an upper sand tank, which is arranged above the upper sand box with an opening at the lower end and stores mold sand inside it ; The upper plate, which is installed at the lower end of the upper sand tank, is formed with a supply port and can be advanced and retreated in the upper sand box; the first lower sand tank stores mold sand in its interior, and has a first continuous line for discharging mold sand Interface; the second lower sand tank, which is arranged under the lower sand box, its upper end is open, and has a second connection port that can be connected to the first connection port of the first lower sand tank, and stores mold sand; lower plate , Which is installed at the upper end of the second sanding tank, is formed with a supply port, and can advance and retreat in the lower sanding box; the driving part, which makes the second sanding tank move up and down; and adjusts the driving part, which makes the 1 The lower sand trough moves up and down.

Description

無箱造模機 Boxless molding machine

本發明係關於一種無箱造模機。 The invention relates to a boxless molding machine.

專利文獻1揭示一種造模無砂箱之無框式鑄模之無箱造模機。該造模機包含：一組上砂箱及下砂箱，其等夾持設置有模型之模型板；供給機構，其供給鑄模砂；及擠壓機構，其壓縮鑄模砂。造模機係將下砂箱向上砂箱靠近，且以上砂箱及下砂箱而夾住模型板。於該狀態下，造模機藉由使供給機構動作，向由上砂箱及下砂箱形成之上下之造模空間供給鑄模砂。造模機係藉由使擠壓機構動作，壓縮上下之造模空間之鑄模砂。經過上述步驟，同時造模上鑄模及下鑄模。 Patent Document 1 discloses a boxless mold making machine for making a frameless mold without a sand box. The molding machine includes: a set of upper sand box and lower sand box, which clamp the model plate provided with the model; a supply mechanism, which supplies mold sand; and an extrusion mechanism, which compresses the mold sand. The molding machine moves the lower sand box to the upper sand box, and the upper sand box and the lower sand box clamp the model board. In this state, the molding machine operates the supply mechanism to supply molding sand to the upper and lower molding space formed by the upper flask and the lower flask. The molding machine compresses the molding sand in the upper and lower molding spaces by operating the extrusion mechanism. After the above steps, the upper mold and the lower mold are molded simultaneously.

該造模機之供給機構係使用壓縮空氣將鑄模砂供給至上下之造模空間。供給機構具有連通於壓縮空氣源並儲存鑄模砂之上砂槽、及配置於上砂箱之上部且靜態連接於上砂槽之上噴頭。自壓縮空氣源吹入之壓縮空氣將儲存於上砂槽之鑄模砂供給於上噴頭，且將上噴頭之鑄模砂供給至由上砂箱劃分之上造模空間供給。同樣地，供給裝置具有連通於壓縮空氣源且儲存鑄模砂之下砂槽、及配置於下砂箱之下部而於上下移動且於特定位置連接於下砂槽之下噴頭。自壓縮空氣源吹入之壓縮空氣將儲存於下砂槽之鑄模砂供給於下噴頭，且將下噴頭之鑄模砂供給於下砂箱。 The supply mechanism of the molding machine uses compressed air to supply the molding sand to the upper and lower molding spaces. The supply mechanism has an upper sand tank connected to the compressed air source and storing mold sand, and a spray head arranged on the upper part of the upper sand box and statically connected to the upper sand tank. The compressed air blown in from the compressed air source supplies the molding sand stored in the upper sand tank to the upper nozzle, and the molding sand of the upper nozzle is supplied to the upper molding space divided by the upper sand box. Similarly, the supply device has a sand tank communicating with a compressed air source and storing mold sand, and a nozzle arranged at the lower part of the lower sand box to move up and down and connected to the lower sand tank at a specific position. The compressed air blown in from the compressed air source supplies the mold sand stored in the lower sand tank to the lower nozzle, and supplies the mold sand from the lower nozzle to the lower sand box.

該無箱造模機之擠壓機構係具備上下對向之上擠壓缸及下擠壓缸。上擠壓缸對上造模空間之鑄模砂施加向下之壓力，下擠壓缸對下 造模空間之鑄模砂施加向上之壓力。藉此，提高鑄模砂之硬度。 The extrusion mechanism of the boxless molding machine is provided with an upper extrusion cylinder and a lower extrusion cylinder facing up and down. The upper extrusion cylinder exerts downward pressure on the mold sand in the upper molding space, and the lower extrusion cylinder faces downward The molding sand in the molding space exerts upward pressure. In this way, the hardness of the mold sand is improved.

[先行技術文献] [Advanced Technical Literature] [特許文献] [Patent Document]

[專利文獻1]日本專利特開昭54-51930號公報 [Patent Document 1] Japanese Patent Laid-Open No. 54-51930

於專利文獻1記載之無箱造模機中，因模型形狀或鑄模砂之CB(Compactabi1ity：緊實性)使造模之鑄模厚度產生變化，故下噴頭之目標高度係根據鑄模之厚度而變化。因此，根據狀況而有下噴頭之連接口與下砂槽之連接口錯開之虞。該情形時，因鑄模砂之流動不相同，故於下砂槽內有發生砂堵塞之虞。如此之砂堵塞可藉由使用低CB之鑄模砂而避免。然而，亦有調整為低CB之鑄模砂對於鑄模之造模性或鑄物製品之品質並非為最佳鑄模砂之情形。於本技術領域中，期望一種可造模優異鑄模或鑄物製品之無箱造模機。 In the boxless molding machine described in Patent Document 1, the mold thickness of the mold is changed due to the shape of the model or the CB (Compactabiity) of the mold sand, so the target height of the lower nozzle changes according to the thickness of the mold . Therefore, depending on the situation, the connection port of the lower nozzle and the connection port of the lower sand tank may be staggered. In this case, because the flow of mold sand is different, there is a risk of sand clogging in the lower sand tank. Such sand clogging can be avoided by using low CB mold sand. However, there are cases where the mold sand adjusted to a low CB is not the best mold sand for the moldability of the mold or the quality of the cast product. In the technical field, a boxless molding machine that can mold excellent molds or cast products is desired.

本發明之一態樣之無箱造模機係造模將無砂箱之上鑄模及下鑄模進行造模者，且包含：上砂箱；下砂箱，其配置於上砂箱之下方，且可與上砂箱一同夾持模型板；上砂槽，其配置於上砂箱之上方，連接於壓縮空氣源，其下端部開口，且於其內部儲存鑄模砂；上板，其安裝於上砂槽之下端部，且形成自上砂槽向上砂箱內連通之至少1個之供給口；第1下砂槽，其連接於壓縮空氣源，於其內部儲存鑄模砂，且具有排出儲存之鑄模砂之第1連接口；第2下砂槽，其配置於下砂箱之下方，其上端部開口，且具有可連接於第1下砂槽之第1連接口之第2連接口，並儲存自第1下砂槽供給且向下砂箱內供給之鑄模砂；下板，其安裝於第2下砂槽之上端部，且形成有自第2下砂槽向下砂箱內連通之至少1個供給口；驅動部，其使第2下砂槽於上下方向移動， 且以上板及下板進行擠壓；及調整驅動部，其使第1下砂槽於上下方向移動。 The boxless molding machine of one aspect of the present invention is a model that molds the upper and lower molds of the sandless box, and includes: an upper sand box; a lower sand box, which is arranged below the upper sand box, And it can clamp the model board together with the upper sand box; the upper sand tank is arranged above the upper sand box and is connected to the compressed air source, the lower end of which is open, and the casting sand is stored inside; the upper plate is installed on The lower end of the upper sand tank is formed with at least one supply port communicating from the upper sand tank to the upper sand box; the first lower sand tank is connected to a compressed air source and stores mold sand in its interior and has a discharge storage The first connecting port of the casting sand; the second lower sand tank, which is arranged under the lower sand box, its upper end is open, and has a second connection port that can be connected to the first connection port of the first lower sand tank, And store the mold sand supplied from the first lower sand tank and supplied into the lower sand box; the lower plate is installed on the upper end of the second lower sand tank and is formed to communicate with the lower sand box from the second lower sand tank At least one supply port; the driving part, which makes the second lower sand tank move up and down, And the upper plate and the lower plate are squeezed; and the driving part is adjusted to move the first lower sand tank in the up and down direction.

於本發明之一態樣之無箱造模機中，將對下砂箱供給鑄模砂之砂槽分割為第1下砂槽及第2下砂槽，藉由驅動部使第2下砂槽於上下方向移動，且藉由調整驅動部使第1下砂槽於上下方向移動。如此，因第1下砂槽及第2下砂槽可獨立地上下移動，故為了與第2下砂槽之第2連接口之高度一致，可調整第1下砂槽之第1連接口之高度。藉此，第1連接口與第2連接口之連結部分之鑄模砂之流動相同，可抑制砂堵塞發生。因此，無須考慮砂堵塞而調整鑄模砂之CB，可使用對於鑄模之造模性或鑄物製品之品質最佳之鑄模砂，且結果可獲得優異之鑄模及鑄物製品。 In the boxless mold making machine of one aspect of the present invention, the sand tank that supplies the mold sand to the lower sand box is divided into a first lower sand tank and a second lower sand tank, and the second lower sand tank is driven by the driving part Move in the up and down direction, and move the first bottom sand tank in the up and down direction by adjusting the driving part. In this way, because the first lower sand tank and the second lower sand tank can move up and down independently, in order to match the height of the second connection port of the second lower sand tank, the first connection port of the first lower sand tank can be adjusted. height. Thereby, the flow of the mold sand in the connecting part of the first connection port and the second connection port is the same, and the occurrence of sand clogging can be prevented. Therefore, without considering the sand clogging to adjust the CB of the mold sand, the mold sand that is the best for the moldability of the mold or the quality of the cast product can be used, and as a result, an excellent mold and cast product can be obtained.

於一實施形態中，亦可藉由上板、上砂箱及模型板，形成造模將上鑄模造模之上造模空間，經由上板將儲存於上砂槽之鑄模砂填充至上造模空間，藉由安裝於由驅動部移動至特定高度之第2下砂槽之下板、下砂箱及模型板，形成造模下鑄模之下造模空間，藉由調整驅動部將第1下砂槽之第1連接口高度調整為第2下砂槽之第2連接口之連接位置而將儲存於第1下砂槽之鑄模砂供給至第2下砂槽，經由下板將儲存於第2下砂槽之鑄模砂填充至下造模空間，以於上造模空間及下造模空間填充鑄模砂之狀態，藉由驅動部將第2下砂槽向上方移動，而以上板及下板進行擠壓。 In one embodiment, the upper plate, the upper sand box, and the model plate can also be used to form the upper moulding space of the upper casting mold, and the casting sand stored in the upper sand tank is filled into the upper mould through the upper plate The space is installed on the lower plate of the second lower sand tank, the lower sand box and the model plate that are moved to a specific height by the driving part to form a molding space under the lower casting mold. The first lower part is adjusted by the driving part. The height of the first connection port of the sand tank is adjusted to the connection position of the second connection port of the second lower sand tank, and the mold sand stored in the first lower sand tank is supplied to the second lower sand tank, and stored in the second lower sand tank through the lower plate. 2 Fill the lower mold space with mold sand from the lower sand tank, and fill the upper mold space and the lower mold space with mold sand. The second lower sand tank is moved upward by the driving part, and the upper and lower The board is squeezed.

於如此構成之情形時，因可僅使分割之第2下砂槽上下移動而實現向下砂箱之鑄模砂之填充及擠壓，故與採用一體型之下砂箱用之砂槽之情形相比，可減輕因載荷不平衡所致之傾斜。 In the case of such a structure, since only the divided second lower sand tank can be moved up and down to fill and squeeze the casting sand of the lower sand box, it is the same as the case where the sand tank for the integrated lower sand box is used. In comparison, it can reduce tilt caused by unbalanced load.

一實施形態之無箱造模機包含下承框，下造模空間亦可由下板、下砂箱、下承框及模型板形成。於如此構成之情形，可縮短下砂箱之行程。因此，該無箱造模機與不具備下承框之情形相比可作為裝 置高度較低之造模機，同時可縮短一組上鑄模及下鑄模之造模時間。 An embodiment of the boxless molding machine includes a lower frame, and the lower molding space can also be formed by the lower plate, the lower sand box, the lower frame and the model plate. In the case of such a structure, the stroke of the lower sand box can be shortened. Therefore, the boxless molding machine can be used as an installation compared to the case without a lower frame. Setting a low-height molding machine can shorten the molding time of a set of upper and lower molds.

於一實施形態中，上砂槽及第1下砂槽亦可於內面設置具有可流通壓縮空氣之複數個孔之透過構件。於如此構成之情形時，因經由透過構件之整面自側方朝儲存空間供給壓縮空氣，故提高鑄模砂之流動性。於該狀態下，進而藉由壓縮空氣向上砂箱及下砂箱吹入鑄模砂，藉此，可減小鑄模砂之吹入阻力。因此，可抑制壓縮空氣源之電力消耗，同時可抑制砂堵塞發生。 In one embodiment, the upper sand trough and the first lower sand trough may also be provided with permeable members having a plurality of holes through which compressed air can flow. In the case of such a structure, since compressed air is supplied to the storage space from the side through the entire surface of the permeable member, the fluidity of the mold sand is improved. In this state, the molding sand is blown into the upper and lower flasks by compressed air, thereby reducing the blowing resistance of the molding sand. Therefore, the power consumption of the compressed air source can be suppressed, and the occurrence of sand clogging can be suppressed.

於一實施形態中，上板之至少1個供給口之內面亦可傾斜以使上板之下表面之開口較上板之上表面之開口更窄。於如此構成之情形時，可將存在於供給口內之鑄模砂，於擠壓後不因重力落下之程度由擠壓力固定。 In one embodiment, the inner surface of at least one supply port of the upper plate may also be inclined to make the opening on the lower surface of the upper plate narrower than the opening on the upper surface of the upper plate. In the case of such a structure, the mold sand existing in the supply port can be fixed by the extrusion force to the extent that it does not fall due to gravity after extrusion.

於一實施形態中，於上板之上表面亦可設有具有面向上板之至少1個供給口傾斜之傾斜面之突起。於如此構成之情形，因藉由突起將鑄模砂引導至供給口，故可防止鑄模砂滯留於供給口附近。 In one embodiment, the upper surface of the upper plate may also be provided with a protrusion having an inclined surface facing at least one supply port of the upper plate. In the case of such a structure, since the mold sand is guided to the supply port by the protrusion, it is possible to prevent the mold sand from staying in the vicinity of the supply port.

於一實施形態中，亦可包含配置於上板之下表面，且連通於至少1個供給口之噴嘴。於如此構成之情形時，藉由調整噴嘴之方向，可進行配合模型形狀之供給。 In one embodiment, it may also include a nozzle arranged on the lower surface of the upper plate and connected to at least one supply port. In the case of such a structure, by adjusting the direction of the nozzle, the supply can be matched to the shape of the model.

於一實施形態中，上板之至少1個供給口亦可由複數個供給口構成，且於上板之下表面配置蓋住自複數個供給口中預先選擇之供給口之閉合板。於該構成之情形時，因可藉由閉合板之有無選擇供給鑄模砂之供給口，故可進行配合模型形狀之供給。 In one embodiment, at least one supply port of the upper plate may also be composed of a plurality of supply ports, and a closed plate covering the supply port preselected from the plurality of supply ports is arranged on the lower surface of the upper plate. In the case of this configuration, since the supply port of the mold sand can be selected by the presence or absence of the closed plate, it is possible to supply the mold according to the shape of the mold.

於一實施形態中，下板之至少1個供給口之內面亦可傾斜以使下板之上表面開口較下板之下表面開口更窄。於如此構成之情形時，於下次之砂供給時，可避免砂堵塞於供給口。 In one embodiment, the inner surface of at least one supply port of the lower plate may also be inclined to make the upper surface opening of the lower plate narrower than the lower surface opening of the lower plate. In the case of such a structure, the sand can be prevented from blocking the supply port during the next sand supply.

於一實施形態中，於下板之下表面亦可設有具有面向下板之至少1個供給口傾斜之傾斜面之突起。於如此構成之情形時，因藉由突 起將鑄模砂引導至供給口，故可防止鑄模砂滯留於供給口附近。 In one embodiment, the lower surface of the lower plate may also be provided with a protrusion having an inclined surface facing at least one supply port of the lower plate. In such a situation, due to the sudden Since the mold sand is guided to the supply port, it can prevent the mold sand from staying near the supply port.

於一實施形態中，亦可包含配置於下板之上表面，且連通於至少1個供給口之噴嘴。於如此構成之情形時，藉由調整噴嘴之方向，可進行配合模型形狀之供給。 In one embodiment, it may also include a nozzle arranged on the upper surface of the lower plate and connected to at least one supply port. In the case of such a structure, by adjusting the direction of the nozzle, the supply can be matched to the shape of the model.

於一實施形態中，下板之至少1個供給口亦可由複數個供給口構成，且於下板之上表面配置蓋住自複數個供給口中預先選擇之供給口之閉合板。於該構成之情形時，因可藉由閉合板之有無選擇供給鑄模砂之供給口，故可進行配合模型形狀之供給。 In one embodiment, at least one supply port of the lower plate may also be composed of a plurality of supply ports, and a closed plate covering the supply port selected in advance from the plurality of supply ports is arranged on the upper surface of the lower plate. In the case of this configuration, since the supply port of the mold sand can be selected by the presence or absence of the closed plate, it is possible to supply the mold according to the shape of the mold.

於一實施形態中，上砂箱、下砂箱及第2下砂槽亦可藉由4個導件可移動地安裝。於如此構成之情形時，穩定上砂箱、下砂箱及第2下砂槽之移動。藉此，可穩定地進行擠壓。因此，可提高脫模等之性能，結果可獲得優異之鑄模及鑄物製品。 In one embodiment, the upper sand box, the lower sand box and the second lower sand tank can also be movably installed by four guides. In the case of such a structure, the movement of the upper sand box, the lower sand box and the second lower sand tank is stabilized. Thereby, the extrusion can be stably performed. Therefore, the performance of mold release can be improved, and as a result, excellent molds and cast products can be obtained.

於一實施形態中，第1連接口及第2連接口亦可於沿著上下方向之連接面連接，於形成第1連接口之第1下砂槽之前端部設置於上下方向延伸之第1閉合板，於形成第2連接口之第2下砂槽之側部設置於上下方向延伸之第2閉合板。於如此構成之情形時，即使於第1連接口與第2連接口之高度不同之情形時，亦可藉由第1閉合板蓋住第2連接口，且，亦可藉由第2閉合板蓋住第1連接口。因此，可防止鑄模砂自砂槽流出。 In one embodiment, the first connecting port and the second connecting port may also be connected to the connecting surface along the vertical direction, and the front end of the first sand tank forming the first connecting port is provided at the first extending in the vertical direction. The closing plate is provided with a second closing plate extending in the up and down direction on the side of the second lower sand tank forming the second connection port. In the case of such a structure, even when the height of the first connection port and the second connection port are different, the second connection port can be covered by the first closing plate, and the second closing plate can also be used Cover the first connection port. Therefore, the casting sand can be prevented from flowing out of the sand tank.

根據本發明之各種態樣及實施形態，提供一種可造模優異之鑄模或鑄物製品之無箱造模機。 According to various aspects and embodiments of the present invention, a boxless mold making machine capable of making excellent molds or cast products is provided.

1:無箱造模機 1: Boxless molding machine

10:上框架 10: Upper frame

11:下框架 11: Lower frame

12:導件 12: guide

12A:導件 12A: Guide

13:支持框架 13: Support framework

14:支持框架 14: Support framework

15:上砂箱 15: Upper sand box

16:上砂箱缸體 16: Upper sand box cylinder

17:下砂箱 17: Lower sand box

18:下砂箱缸體 18: Lower sand box cylinder

19:模型板 19: model board

20:搬送板 20: Transport board

21:搬送缸體 21: Transport cylinder

22:上砂槽 22: Upper sand tank

22a:透過構件 22a: Through the component

23:滑動門 23: Sliding door

24:鑄模砂投入溜槽 24: Cast sand into the chute

25:上板 25: upper board

25a:供給口 25a: supply port

25b:下表面 25b: lower surface

25c:上表面 25c: upper surface

25d:突起 25d: protrusion

26:配管 26: Piping

27:電空比例閥 27: Electro-pneumatic proportional valve

29:配管 29: Piping

30:第1下砂槽 30: The first sand trough

30a:透過構件 30a: Through the component

30b:配管 30b: Piping

31:第2下砂槽 31: The second lower sand tank

32:下槽缸體 32: Lower tank cylinder

33:滑動門 33: Sliding door

34:漏斗 34: Funnel

35:第1連接口 35: 1st connection port

35a:開口 35a: opening

36:第1閉合板 36: 1st closing board

37:擠壓缸體 37: Extrusion cylinder

38:第2連接口 38: 2nd connection port

39:第2閉合板 39: 2nd closing board

40:下板 40: lower board

40a:供給口 40a: supply port

40b:下表面 40b: lower surface

40c:上表面 40c: upper surface

40d:突起 40d: protrusion

41:下承框 41: Lower frame

42:下承框缸體 42: Lower frame cylinder

43:切換擋板 43: switch bezel

44:噴嘴板 44: nozzle plate

44a:開口 44a: opening

45:閉合板 45: closed board

46:噴嘴板 46: nozzle plate

46a:開口 46a: opening

47:閉合板 47: closed board

48:擠出缸體 48: Extrusion cylinder

49:襯套 49: Bush

50:控制裝置 50: control device

51:第1檢測部 51: The first detection part

52:第2檢測部 52: The second detection part

53:第3檢測部 53: The third inspection department

54:第4檢測部 54: The 4th Inspection Department

55:第5檢測部 55: Section 5 Inspection

60:磁石 60: Magnet

61:磁場檢測部 61: Magnetic field detection department

62:構件 62: component

63:構件 63: component

70:辨識部 70: Identification Department

71:導軌 71: Rail

72:密封構件 72: Sealing member

73:保持構件 73: Holding member

73a:氣體導入口 73a: Gas inlet

80:控制部 80: Control Department

90:記憶部 90: Memory Department

A1:造模部 A1: Modeling Department

A2:搬送部 A2: Transport Department

S12:處理 S12: processing

S14:處理 S14: processing

S16:處理 S16: processing

S18:處理 S18: processing

S20:處理 S20: processing

S22:處理 S22: processing

S24:處理 S24: processing

S26:處理 S26: processing

S28:處理 S28: processing

S30:處理 S30: processing

S32:處理 S32: processing

S40:處理 S40: processing

S42:處理 S42: processing

X:方向 X: direction

Y:方向 Y: direction

Z:方向 Z: direction

圖1係一實施形態之無箱造模機之前面側之立體圖。 Fig. 1 is a perspective view of the front side of a boxless molding machine of an embodiment.

圖2係一實施形態之無箱造模機之前視圖。 Figure 2 is a front view of an embodiment of the boxless molding machine.

圖3係一實施形態之無箱造模機之左側面側之概要圖。 Fig. 3 is a schematic view of the left side of the boxless molding machine of an embodiment.

圖4係第1下砂槽與第2下砂槽連接之狀態之部分剖視圖。 Figure 4 is a partial cross-sectional view of the state where the first lower sand tank is connected to the second lower sand tank.

圖5係第1下砂槽與第2下砂槽連接之狀態之俯視圖。 Figure 5 is a top view of the state where the first lower sand tank is connected to the second lower sand tank.

圖6係第1下砂槽之第1連接口之概要圖。 Figure 6 is a schematic diagram of the first connecting port of the first lower sand tank.

圖7係密封機構之部分放大剖視圖。 Figure 7 is a partial enlarged cross-sectional view of the sealing mechanism.

圖8係下板之上表面側之立體圖。 Fig. 8 is a perspective view of the upper surface side of the lower plate.

圖9係下板之下表面側之立體圖。 Figure 9 is a perspective view of the lower surface side of the lower plate.

圖10係沿圖8之X-X線之剖視圖。 Fig. 10 is a cross-sectional view taken along line X-X of Fig. 8;

圖11係上板之下表面側之立體圖。 Figure 11 is a perspective view of the lower surface side of the upper plate.

圖12係上板之上表面側之立體圖。 Fig. 12 is a perspective view of the upper surface side of the upper plate.

圖13係沿圖11之ⅩⅢ-ⅩⅢ線之剖視圖。 Figure 13 is a cross-sectional view taken along the line XIII-XIII of Figure 11.

圖14係說明襯套之概要圖。 Figure 14 is a schematic diagram illustrating the bushing.

圖15係圖14之剖視圖。 Fig. 15 is a sectional view of Fig. 14.

圖16係說明襯套卸下之俯視圖。 Figure 16 is a top view illustrating the removal of the bushing.

圖17係說明襯套卸下之剖視圖。 Figure 17 is a sectional view illustrating the removal of the bushing.

圖18係說明一實施形態之無箱造模機之造模處理之流程圖。 Fig. 18 is a flowchart illustrating the molding process of the boxless molding machine of an embodiment.

圖19係說明梭入處理之概要圖。 Fig. 19 is a schematic diagram illustrating the shuttle-in process.

圖20係說明框設置處理之概要圖。 Fig. 20 is a schematic diagram illustrating frame setting processing.

圖21係說明通氣處理之概要圖。 Fig. 21 is a schematic diagram illustrating aeration treatment.

圖22係說明擠壓處理之概要圖。 Fig. 22 is a schematic diagram illustrating the extrusion process.

圖23係說明脫模處理之概要圖。 Fig. 23 is a schematic diagram illustrating the demolding process.

圖24係說明梭出處理之概要圖。 Fig. 24 is a schematic diagram illustrating the shuttle process.

圖25係說明合框處理之概要圖。 Fig. 25 is a schematic diagram illustrating the framing process.

圖26係說明拔框處理之概要圖。 Fig. 26 is a schematic diagram illustrating the frame pulling process.

圖27係說明第1框分離處理(前半)之概要圖。 Fig. 27 is a schematic diagram illustrating the first frame separation process (first half).

圖28係說明模製擠出處理之概要圖。 Fig. 28 is a schematic diagram illustrating the molding extrusion process.

圖29係說明第2框分離處理(後半)之概要圖。 Fig. 29 is a schematic diagram for explaining the second frame separation process (second half).

圖30係一實施形態之無箱造模機之控制裝置之功能方塊圖。 Fig. 30 is a functional block diagram of the control device of the boxless molding machine of an embodiment.

圖31係顯示第1檢測器之一例之俯視圖。 Fig. 31 is a plan view showing an example of the first detector.

圖32係顯示第1檢測器之一例之前視圖。 Fig. 32 is a front view showing an example of the first detector.

圖33係說明一實施形態之無箱造模機之目標設定處理之流程圖。 FIG. 33 is a flowchart illustrating the target setting process of the boxless molding machine of an embodiment.

以下，參照附加圖式，對實施形態進行說明。另，對各圖中相同或相當部分附註相同符號，省略重複之說明。以下，將水平方向設為X軸及Y軸之方向，將垂直方向(上下方向)設為Z軸之方向。 Hereinafter, the embodiment will be described with reference to the attached drawings. In addition, the same symbols are attached to the same or corresponding parts in each figure, and repeated descriptions are omitted. Hereinafter, let the horizontal direction be the direction of the X axis and the Y axis, and let the vertical direction (up and down direction) be the direction of the Z axis.

[無箱造模機之概要] [Outline of Boxless Molding Machine]

圖1係一實施形態之無箱造模機1之前面側之立體圖。無箱造模機1係造模無砂箱之上鑄模及下鑄模之造模機。如圖1所示，無箱造模機1包含造模部A1及搬送部A2。造模部A1配置有於上下方向(Z軸方向)可動作之箱形狀之上砂箱及下砂箱。搬送部A2係將配置有模型之模型板導入造模部A1。造模部A1之上砂箱及下砂箱係以相互接近之方式移動，且夾持模型板。於上砂箱及下砂箱內，填充鑄模砂。填充於上砂箱內及下砂箱內之鑄模砂藉由造模部A1所包含之擠壓機構自上下方向加壓而同時形成上鑄模及下鑄模。其後，分別自上砂箱、下砂箱拔出上鑄模、下鑄模，並向裝置外搬出。如此，無箱造模機1可造模無砂箱之上鑄模及下鑄模。 Fig. 1 is a perspective view of the front side of a boxless molding machine 1 according to an embodiment. The boxless mold making machine 1 is a mold making machine for making upper and lower molds without a sand box. As shown in FIG. 1, the boxless molding machine 1 includes a molding section A1 and a conveying section A2. The molding part A1 is equipped with an upper sand box and a lower sand box that are movable in the vertical direction (Z-axis direction). The conveying part A2 introduces the model plate with the model arranged into the model building part A1. The upper sand box and the lower sand box of the molding part A1 move in a manner close to each other and clamp the model plate. Fill the upper and lower flasks with mold sand. The mold sand filled in the upper flask and the lower flask is pressurized from the up and down direction by the extrusion mechanism included in the molding part A1 to simultaneously form the upper mold and the lower mold. After that, the upper mold and the lower mold are pulled out from the upper flask and the lower flask, respectively, and moved out of the device. In this way, the boxless mold making machine 1 can mold the top and bottom molds without a sand box.

[框架構造] [Frame structure]

圖2係一實施形態之無箱造模機1之前視圖。圖3係一實施形態之無箱造模機1之左側面側之概要圖。如圖2及圖3所示，無箱造模機1包含上框架10、下框架11、及連結上框架10與下框架11之4個導件12。導件12其上端部連結於上框架10，其下端部連結於下框架11。藉由上框架10、下框架11、及4個導件12，構成上述之造模部A1之框架。 Fig. 2 is a front view of a boxless molding machine 1 according to an embodiment. Fig. 3 is a schematic view of the left side of the boxless molding machine 1 of an embodiment. As shown in FIGS. 2 and 3, the boxless molding machine 1 includes an upper frame 10, a lower frame 11, and four guides 12 connecting the upper frame 10 and the lower frame 11. The upper end of the guide 12 is connected to the upper frame 10 and the lower end is connected to the lower frame 11. The upper frame 10, the lower frame 11, and the four guides 12 constitute the frame of the above-mentioned molding part A1.

於造模部A1之框架之側方(X軸之負方向)，配置有搬送部A2之支持框架13(圖2)。又，於造模部A1之框架之側方(Y軸之正方向)，配置有於上下方向延伸之支持框架14(圖3)。支持框架14係支持後述之第1下砂槽。 On the side of the frame of the molding part A1 (the negative direction of the X axis), a supporting frame 13 of the conveying part A2 is arranged (Figure 2). In addition, on the side of the frame of the molding part A1 (the positive direction of the Y axis), a support frame 14 extending in the up and down direction is arranged (FIG. 3). The support frame 14 supports the first lower sand trough described later.

[上砂箱及下砂箱] [Upper sand box and lower sand box]

無箱造模機1包含上砂箱15。上砂箱15係上端部及下端部開口之箱形狀之框體。上砂箱15可移動地安裝於4個導件12。上砂箱15藉由安裝於上框架10之上砂箱缸體16而支持，且根據上砂箱缸體16之動作而沿著導件12上下移動。 The boxless molding machine 1 includes an upper sand box 15. The upper sand box 15 is a box-shaped frame with open upper and lower ends. The upper sand box 15 is movably installed on the four guides 12. The upper sand box 15 is supported by the sand box cylinder 16 installed on the upper frame 10 and moves up and down along the guide 12 according to the action of the upper sand box cylinder 16.

無箱造模機1包含配置於上砂箱15之下方之下砂箱17。下砂箱17係上端部及下端部開口之箱形狀之框體。下砂箱17可移動地安裝於4個導件12。下砂箱17藉由安裝於上框架10之2根下砂箱缸體18(圖2)而支持，且根據下砂箱缸體18之動作而沿著導件12上下移動。以下，亦將導件12所包圍之區域稱為造模位置。 The boxless molding machine 1 includes a lower sand box 17 arranged below the upper sand box 15. The lower sand box 17 is a box-shaped frame with an open upper end and a lower end. The lower sand box 17 is movably installed on the four guides 12. The lower sand box 17 is supported by two lower sand box cylinders 18 (FIG. 2) installed on the upper frame 10, and moves up and down along the guide 12 according to the action of the lower sand box cylinder 18. Hereinafter, the area surrounded by the guide 12 is also referred to as a molding position.

模型板19自搬送部A2導入於上砂箱15及下砂箱17之間。模型板19係於其雙面配置模型之板狀構件，且於上砂箱15與下砂箱17之間進退。作為具體之一例，於搬送部A2之支持框架13包含朝向造模位置之導軌、配置於導軌上之附有輥之搬送板20、及使搬送板20動作之搬送缸體21。模型板19係配置於搬送板20上，藉由搬送缸體21之動作，配置於造模位置即上砂箱15於下砂箱17之間。上砂箱15及下砂箱17係可自上下方向夾持所配置之模型板19。以下，亦將支持框架13上之區域稱為退避位置。 The model plate 19 is introduced between the upper flask 15 and the lower flask 17 from the conveying part A2. The model plate 19 is a plate-shaped member with a model on both sides, and advances and retreats between the upper sand box 15 and the lower sand box 17. As a specific example, the support frame 13 in the conveying part A2 includes a guide rail facing the molding position, a conveying plate 20 with rollers arranged on the guide rail, and a conveying cylinder 21 that moves the conveying plate 20. The model plate 19 is arranged on the conveying plate 20, and by the action of the conveying cylinder 21, it is arranged between the upper sand box 15 and the lower sand box 17 at the molding position. The upper sand box 15 and the lower sand box 17 can clamp the configured model plate 19 from the up and down direction. Hereinafter, the area on the support frame 13 is also referred to as an escape position.

[砂槽] [Sand Trough]

無箱造模機1包含配置於上砂箱15上方之上砂槽22。上砂槽22安裝於上框架10。更具體而言，上砂槽22係靜態地固定於上框架10。上砂槽22於其內部儲存用以供給至上砂箱15之鑄模砂。上砂槽22其上端 部及下端部開口。於上砂槽22之上端部，設有使板狀之遮蔽構件於水平方向(X軸之正負方向)滑動之滑動門23。藉由滑動門23之動作，上砂槽22之上端部以可開關地構成。又，於上砂槽22之上方，固定配置有投入鑄模砂之鑄模砂投入溜槽24。關於鑄模砂投入溜槽24將於後敘述。於滑動門23為打開狀態時，鑄模砂經由鑄模砂投入溜槽24供給至上砂槽22。 The boxless molding machine 1 includes an upper sand tank 22 arranged above the upper sand box 15. The upper sand tank 22 is installed on the upper frame 10. More specifically, the upper sand tank 22 is statically fixed to the upper frame 10. The upper sand tank 22 stores therein mold sand for supply to the upper sand box 15. The upper end of the upper sand tank 22 The bottom and the lower end are open. At the upper end of the upper sand tank 22, a sliding door 23 for sliding the plate-shaped shielding member in the horizontal direction (positive and negative direction of the X axis) is provided. By the action of the sliding door 23, the upper end of the upper sand trough 22 can be opened and closed. In addition, above the upper sand chute 22, a mold sand input chute 24 for casting mold sand is fixedly arranged. The casting sand injection chute 24 will be described later. When the sliding door 23 is in an open state, the mold sand is supplied to the upper sand tank 22 via the mold sand input chute 24.

上砂槽22之下端部開口，且於下端部之開口安裝有上板25(圖3)。上板25係板狀構件，且具有自上砂槽22向上砂箱15內連通之至少1個供給口。上砂槽22內之鑄模砂經由上板25之供給口被供給至上砂箱15內。上板25與上砂箱15之開口大小大致相同。藉由上砂箱15於上方向移動，上板25進入上砂箱15內。藉由上砂箱15於下方向移動，上板25自上砂箱15內退出。如此，上板25構成為可於上砂箱15內進退。上板25之詳情將於下文敍述。 The lower end of the upper sand tank 22 is open, and an upper plate 25 is installed in the opening of the lower end (FIG. 3 ). The upper plate 25 is a plate-shaped member and has at least one supply port communicating from the upper sand tank 22 to the upper sand box 15. The mold sand in the upper sand tank 22 is supplied into the upper sand box 15 through the supply port of the upper plate 25. The opening size of the upper plate 25 and the upper sand box 15 are approximately the same. By moving the upper sand box 15 in the upper direction, the upper plate 25 enters the upper sand box 15. By moving the upper sand box 15 in the downward direction, the upper plate 25 withdraws from the upper sand box 15. In this way, the upper plate 25 is configured to be able to advance and retreat in the upper flask 15. The details of the upper board 25 will be described below.

上砂槽22連接於壓縮空氣源(未圖示)。作為具體之一例，上砂槽22於其上部連接有供給壓縮空氣之配管26(圖2)，且經由配管26與壓縮空氣源連接。於配管26設置有電空比例閥27(圖2)。電空比例閥27不僅切換壓縮空氣之供給及停止，亦根據輸出側之壓力而自動調整閥開度。因此，對上砂槽22供給特定壓力之壓縮空氣。於滑動門23為關閉狀態時，自上砂槽22之上部供給之壓縮空氣朝上砂槽22之下部送入。上砂槽22內之鑄模砂與壓縮空氣一起經由上板25之供給口供給至上砂箱15內。 The upper sand tank 22 is connected to a compressed air source (not shown). As a specific example, a pipe 26 (FIG. 2) for supplying compressed air is connected to the upper sand tank 22, and is connected to a compressed air source via the pipe 26. The piping 26 is provided with an electro-pneumatic proportional valve 27 (FIG. 2 ). The electro-pneumatic proportional valve 27 not only switches the supply and stop of compressed air, but also automatically adjusts the valve opening according to the pressure on the output side. Therefore, compressed air of a specific pressure is supplied to the upper sand tank 22. When the sliding door 23 is in the closed state, the compressed air supplied from the upper part of the upper sand tank 22 is sent to the lower part of the upper sand tank 22. The molding sand in the upper sand tank 22 is supplied into the upper sand box 15 through the supply port of the upper plate 25 together with compressed air.

又，上砂槽22於其內面設有具有可流通壓縮空氣之複數個孔之透過構件22a(圖3)。藉此，因經由透過構件22a之整面將壓縮空氣供給至內部空間整體，故提高鑄模砂之流動性。透過構件22a亦可由多孔質材料形成。上砂槽22於其側部連接供給壓縮空氣之配管(未圖示)，及排出壓縮空氣之配管29(圖2)。於配管29設置有不使鑄模砂通過， 而使壓縮空氣透過之過濾器，可避免鑄模砂向上砂槽22外排出。 In addition, the upper sand tank 22 is provided with a permeable member 22a having a plurality of holes through which compressed air can circulate on its inner surface (FIG. 3). Thereby, since compressed air is supplied to the entire internal space through the entire surface of the permeable member 22a, the fluidity of the mold sand is improved. The permeable member 22a may be formed of a porous material. The upper sand tank 22 is connected to a piping (not shown) for supplying compressed air and a piping 29 for discharging compressed air at its side (FIG. 2). The piping 29 is provided so that no mold sand can pass through, The filter that allows the compressed air to pass through can prevent mold sand from being discharged out of the upper sand tank 22.

無箱造模機1包含儲存供給至下砂箱17內之鑄模砂之下砂槽。作為一例，下砂槽係分割為第1下砂槽30(圖3)及第2下砂槽31(圖3)。第1下砂槽30配置於上砂槽22之側方。第1下砂槽30於其內部儲存用以供給至下砂箱17之鑄模砂。 The boxless molding machine 1 includes a lower sand tank for storing and supplying mold sand into the lower sand box 17. As an example, the lower sand tank system is divided into a first lower sand tank 30 (FIG. 3) and a second lower sand tank 31 (FIG. 3 ). The first lower sand tank 30 is arranged on the side of the upper sand tank 22. The first lower sand tank 30 stores therein mold sand for supply to the lower sand box 17.

第1下砂槽30由支持框架14支持，且可移動地安裝於設於支持框架14之上下延伸之導件12A(圖1)。更具體而言，第1下砂槽30由安裝於上框架10之下槽缸體(調整驅動部)32(圖3)支持，且根據下槽缸體32之動作沿著導件12A上下移動。 The first lower sand trough 30 is supported by the supporting frame 14 and is movably installed on a guide 12A extending up and down on the supporting frame 14 (FIG. 1 ). More specifically, the first lower sand tank 30 is supported by the lower tank cylinder (adjustment drive part) 32 (FIG. 3) mounted on the upper frame 10, and moves up and down along the guide 12A according to the action of the lower tank cylinder 32 .

第1下砂槽30，其上端部開口。於第1下砂槽30之上端部，設有將板狀之遮蔽構件於水平方向(X軸之正負方向)滑動之滑動門33(圖3)。藉由滑動門33之動作，第1下砂槽30之上端部構成為可開關。又，於第1下砂槽30之上方，固定配置用以投入鑄模砂之漏斗34(圖3)。將於後文對漏斗34與鑄模砂投入溜槽24之連接關係加以敘述。於滑動門33為打開狀態時，鑄模砂經由漏斗34供給至第1下砂槽30。 The upper end of the first lower sand tank 30 is open. At the upper end of the first lower sand tank 30, there is provided a sliding door 33 for sliding the plate-shaped shielding member in the horizontal direction (positive and negative direction of the X axis) (Figure 3). By the operation of the sliding door 33, the upper end of the first lower sand tank 30 is configured to be openable and closeable. In addition, above the first lower sand tank 30, a hopper 34 for casting mold sand is fixedly arranged (Figure 3). The connection relationship between the hopper 34 and the mold sand input chute 24 will be described later. When the sliding door 33 is in an open state, the mold sand is supplied to the first lower sand tank 30 via the hopper 34.

第1下砂槽30之下端部於水平方向(Y軸之負方向)彎曲，且於前端部形成排出儲存之鑄模砂之第1連接口35(圖3)。第1連接口35構成為可與後述之第2下砂槽31之第2連接口於特定高度(連接位置)連接。鑄模砂經由第1連接口35供給至第2下砂槽31。又，於第1下砂槽30之前端部設有於上下方向延伸之第1閉合板36。後述之第2下砂槽31之第2連接口於未位於連接位置時由第1閉合板36蓋住。 The lower end of the first lower sand tank 30 is bent in the horizontal direction (the negative direction of the Y-axis), and a first connection port 35 for discharging the stored mold sand is formed at the front end (FIG. 3 ). The first connection port 35 is configured to be connectable to the second connection port of the second lower sand tank 31 described later at a specific height (connection position). The mold sand is supplied to the second sand tank 31 through the first connection port 35. In addition, a first closing plate 36 extending in the up and down direction is provided at the front end of the first lower sand tank 30. The second connecting port of the second lower sand tank 31 described later is covered by the first closing plate 36 when it is not in the connecting position.

第1下砂槽30連接於壓縮空氣源(未圖示)。作為具體之一例，第1下砂槽30於其上部連接有供給壓縮空氣之配管(未圖示)，且經由配管與壓縮空氣源連接。於配管設有電空比例閥(未圖示)。因此，對第1下砂槽30供給特定壓力之壓縮空氣。滑動門33為關閉狀態時，於後述之第2下砂槽31之第2連接口位於連接位置之情形時，自第1下砂槽30 之上部供給壓縮空氣。壓縮空氣係朝向第1下砂槽30送入，第1下砂槽30內之鑄模砂與壓縮空氣一起經由第1連接口35供給至第2下砂槽31內。 The first lower sand tank 30 is connected to a compressed air source (not shown). As a specific example, a pipe (not shown) for supplying compressed air is connected to the upper part of the first lower sand tank 30, and is connected to a compressed air source via the pipe. An electro-pneumatic proportional valve (not shown) is installed in the piping. Therefore, compressed air of a specific pressure is supplied to the first lower sand tank 30. When the sliding door 33 is in the closed state, when the second connecting port of the second lower sand tank 31 described later is located at the connection position, from the first lower sand tank 30 The upper part supplies compressed air. The compressed air is fed toward the first sand lowering tank 30, and the molding sand in the first lower sanding tank 30 is supplied into the second lower sanding tank 31 through the first connection port 35 together with the compressed air.

又，第1下砂槽30於其內面設有具有可流通壓縮空氣之複數個孔之透過構件30a。藉此，因經由透過構件30a之整面將壓縮空氣供給至內部空間整體，故提高鑄模砂之流動性。透過構件30a亦可由多孔質材料形成。第1下砂槽30於其側部連接供排出壓縮空氣之配管30b。於配管30b(圖3)中設置不使鑄模砂通過，而使壓縮空氣通過之過濾器，可避免鑄模砂向第1下砂槽30外排出。 In addition, the inner surface of the first lower sand tank 30 is provided with a permeable member 30a having a plurality of holes through which compressed air can flow. Thereby, since compressed air is supplied to the entire internal space through the entire surface of the permeable member 30a, the fluidity of the mold sand is improved. The permeable member 30a may be formed of a porous material. A pipe 30b for discharging compressed air is connected to the side of the first lower sand tank 30. The piping 30b (FIG. 3) is provided with a filter that does not allow mold sand to pass through, but allows compressed air to pass through, so as to prevent mold sand from being discharged out of the first lower sand tank 30.

第2下砂槽31係配置於下砂箱17之下方。第2下砂槽31於其內部儲存用以對下砂箱17供給之鑄模砂。第2下砂槽31係可移動地安裝於4個導件12，且藉由於上下方向延伸之擠壓缸體(驅動部)37可上下移動地被支持。 The second lower sand tank 31 is arranged below the lower sand box 17. The second lower sand tank 31 stores therein mold sand for supplying the lower sand box 17. The second lower sand tank 31 is movably installed on the four guides 12, and is supported by a squeeze cylinder (driving part) 37 that extends vertically.

於第2下砂槽31之側部形成有可連接於第1下砂槽之第1連接口35之第2連接口38(圖3)。第2連接口38構成為可與第1下砂槽30之第1連接口35於特定高度(連接位置)連接。連接位置係第1連接口35與第2連接口38連接之高度，具體而言，係第1連接口35及第2連接口38同軸配置之位置。第1連接口35及第2連接口38係於沿著上下方向之連接面連接。 A second connecting port 38 that can be connected to the first connecting port 35 of the first lower sand tank is formed on the side of the second lower sand tank 31 (FIG. 3 ). The second connection port 38 is configured to be connectable to the first connection port 35 of the first lower sand tank 30 at a specific height (connection position). The connection position is the height at which the first connection port 35 and the second connection port 38 are connected, specifically, the position where the first connection port 35 and the second connection port 38 are coaxially arranged. The 1st connection port 35 and the 2nd connection port 38 are connected by the connection surface along the up-down direction.

圖4係第1下砂槽30與第2下砂槽31連接之狀態之部分剖視圖。圖5係第1下砂槽30與第2下砂槽31連接之狀態之俯視圖。如圖4及圖5所示，第1下砂槽30及第2下砂槽31藉由第1連接口35與第2連接口38於特定之連接位置連接，而成為相互連通之狀態。鑄模砂經由第1連接口35及第2連接口38自第1下砂槽38供給至第2下砂槽31。又，於第2下砂槽31之第2連接口38設置有於上下方向延伸之第2閉合板39(圖3~圖5)。於第1下砂槽30之第1連接口35之兩側部，設有引導第2閉合板39 之導軌71。第2閉合板39藉由導軌71而被引導，藉此，第1連接口35及第2連接口38不相互傾斜地而被引導至連接位置。第1下砂槽30之第1連接口35於未位於連接位置時由第2閉合板39蓋住。 4 is a partial cross-sectional view of a state where the first lower sand tank 30 and the second lower sand tank 31 are connected. FIG. 5 is a plan view of the state where the first lower sand tank 30 and the second lower sand tank 31 are connected. As shown in Figs. 4 and 5, the first lower sand tank 30 and the second lower sand tank 31 are connected to each other at a specific connection position by the first connection port 35 and the second connection port 38, and are connected to each other. The mold sand is supplied from the first sanding tank 38 to the second sanding tank 31 via the first connection port 35 and the second connection port 38. In addition, the second connecting port 38 of the second lower sand tank 31 is provided with a second closing plate 39 extending in the vertical direction (FIGS. 3 to 5 ). On both sides of the first connecting port 35 of the first lower sand tank 30, there are guiding second closing plates 39 之rail 71. The second closing plate 39 is guided by the guide rail 71, whereby the first connection port 35 and the second connection port 38 are guided to the connection position without being inclined to each other. The first connecting port 35 of the first lower sand tank 30 is covered by the second closing plate 39 when it is not in the connecting position.

另，無箱造模機1亦可包含氣密地密封第1連接口35及第2連接口38之連接面之密封機構。例如，密封機構設於第1連接口35側。圖6係第1下砂槽30之第1連接口35之概要圖，且係自開口之側觀察第1連接口35之圖。如圖6所示，第1連接口35包含連通至第1下砂槽30內部之開口35a。密封構件包含密封構件72及保持構件73。密封構件72係包圍開口35a之環狀構件。密封構件72係呈可將氣體導入至其內部之管形狀，且具有可撓性。保持構件73係包圍開口35a之環狀構件，且抵接於第2閉合板39。於第2閉合板39所抵接之保持構件73之表面形成可收容密封構件72之槽。圖7係密封機構之部分放大剖視圖。如圖7所示，密封構件72係以不自第2閉合板39所抵接之保持構件73表面突出之程度被收容。於保持構件73形成有朝密封構件72連通之氣體導入口73a(圖4~圖7)。密封構件72若氣體導入至其內部則膨脹，且自保持構件73之表面突出而氣密地密封第1連接口35及第2連接口38之連接面。另，無箱造模機1亦可採用圖4~圖7所示之密封機構以外之密封機構。 In addition, the boxless molding machine 1 may also include a sealing mechanism that hermetically seals the connecting surfaces of the first connecting port 35 and the second connecting port 38. For example, the sealing mechanism is provided on the first connection port 35 side. 6 is a schematic view of the first connection port 35 of the first lower sand tank 30, and is a view of the first connection port 35 viewed from the side of the opening. As shown in FIG. 6, the first connection port 35 includes an opening 35 a that communicates with the inside of the first lower sand tank 30. The sealing member includes a sealing member 72 and a holding member 73. The sealing member 72 is an annular member that surrounds the opening 35a. The sealing member 72 is in the shape of a tube that can introduce gas into it, and has flexibility. The holding member 73 is a ring-shaped member that surrounds the opening 35 a and abuts against the second closing plate 39. A groove capable of accommodating the sealing member 72 is formed on the surface of the holding member 73 to which the second closing plate 39 abuts. Figure 7 is a partial enlarged cross-sectional view of the sealing mechanism. As shown in FIG. 7, the sealing member 72 is accommodated so that it does not protrude from the surface of the holding member 73 which the 2nd closing plate 39 abuts. The holding member 73 is formed with a gas introduction port 73a communicating with the sealing member 72 (FIGS. 4 to 7 ). The sealing member 72 expands when gas is introduced into it, and protrudes from the surface of the holding member 73 to airtightly seal the connection surface of the first connection port 35 and the second connection port 38. In addition, the boxless molding machine 1 can also adopt sealing mechanisms other than the sealing mechanisms shown in Figs. 4-7.

第2下砂槽31之上端部係開口，且於上端部之開口安裝有下板40(圖3)。下板40係板狀構件，且具有自第2下砂槽31向下砂箱17內連通之至少1個供給口。第2下砂槽31內之鑄模砂係經由下板40之供給口及後述之下承框供給至下砂箱17內。下板40之詳細情況將於下文敍述。 The upper end of the second lower sand tank 31 is open, and a lower plate 40 is installed in the opening of the upper end (FIG. 3 ). The lower plate 40 is a plate-shaped member, and has at least one supply port communicating from the second lower sand tank 31 to the lower sand box 17. The mold sand in the second lower sand tank 31 is supplied into the lower sand box 17 through the supply port of the lower plate 40 and the lower supporting frame described later. The details of the lower plate 40 will be described below.

[下承框] [Next frame]

作為一例，無箱造模機1包含下承框41。下承框41係配置於下砂箱17之下方。下承框41係上端部及下端部開口之箱形狀之框體。下承 框41之上端部之開口與下砂箱17之下端部之開口連接。下承框41構成為可於其內部收容第2下砂槽31。下承框41係藉由固定於第2下砂槽31之下承框缸體42可上下移動地被支持。下板40與下承框41及下砂箱17之開口大小大致相同。另，可上下移動之下承框41，於其內部收容第2下砂槽31及下板40之位置為原位置(初始位置)，且成為下降端。藉由使下承框41於上方向移動，下板40自下承框41內退出。藉由使於上方向移動之下承框41於下方向移動，下板40進入下承框41內。如此，下板40構成為可於下承框41內進退(可出入)。該無箱造模機1因藉由包含下承框41而可縮短下砂箱17之行程，故與未包含下承框41之情形相比可作為裝置高度較低之無箱造模機。又，該無箱造模機1因藉由包含下承框41而可縮短下砂箱17之行程，故可縮短一組上鑄模及下鑄模之造模時間。 As an example, the boxless molding machine 1 includes a lower frame 41. The lower supporting frame 41 is arranged under the lower sand box 17. The lower supporting frame 41 is a box-shaped frame with an open upper end and a lower end. Inherit The opening at the upper end of the frame 41 is connected with the opening at the lower end of the lower flask 17. The lower frame 41 is configured to accommodate the second lower sand tank 31 inside. The lower supporting frame 41 is supported by the supporting frame cylinder 42 being fixed to the second lower sand tank 31 so as to be movable up and down. The size of the opening of the lower plate 40, the lower supporting frame 41 and the lower sand box 17 is approximately the same. In addition, the lower supporting frame 41 can be moved up and down, and the position where the second lower sand tank 31 and the lower plate 40 are housed is the original position (initial position) and becomes the lower end. By moving the lower supporting frame 41 in the upper direction, the lower plate 40 withdraws from the lower supporting frame 41. By moving the lower frame 41 in the upper direction to move in the lower direction, the lower plate 40 enters the lower frame 41. In this way, the lower plate 40 is configured to be able to advance and retreat in the lower supporting frame 41 (accessible). The boxless molding machine 1 can shorten the stroke of the lower flask 17 by including the lower supporting frame 41, so it can be used as a boxless molding machine with a lower device height than the case where the lower supporting frame 41 is not included. In addition, the boxless molding machine 1 can shorten the stroke of the lower flask 17 by including the lower supporting frame 41, so that the molding time of a set of upper and lower molds can be shortened.

另，無箱造模機1亦可不包含下承框41。於該情形時，下板40構成為可於下砂箱17內進退(可出入)。可上下移動之下砂箱17，下降端為原位置(初始位置)。即，下板40係藉由較於上方向移動之下砂箱17更加相對性地於上方向移動而進入下砂箱17內。下板40係藉由較下砂箱17更加相對性地於下方向移動而自下砂箱17內退出。 In addition, the boxless molding machine 1 may not include the lower supporting frame 41. In this case, the lower plate 40 is configured to be able to advance and retreat in the lower flask 17 (accessible). The lower sand box 17 can be moved up and down, and the lower end is the original position (initial position). That is, the lower plate 40 enters the lower sand box 17 by moving in the upper direction more relative than the lower sand box 17 moving in the upper direction. The lower plate 40 is withdrawn from the lower sand box 17 by moving in the lower direction more relatively than the lower sand box 17.

[造模空間及擠壓] [Molding space and extrusion]

上鑄模之造模空間(上造模空間)係由上板25、上砂箱15及模型板19形成。下鑄模之造模空間(下造模空間)係由下板40、下砂箱17及模型板19形成。上造模空間及下造模空間係於使上砂箱缸體16、下砂箱缸體18及擠壓缸體37動作，且上砂箱15及下砂箱17於特定高度夾持模型板時所形成。另，於無箱造模機1包含下承框41之情形時，下造模空間亦可由下板40、下砂箱17、下承框41及模型板19形成。 The modeling space (upper modeling space) of the upper mold is formed by the upper plate 25, the upper sand box 15 and the model plate 19. The molding space (lower molding space) of the lower mold is formed by the lower plate 40, the lower flask 17 and the model plate 19. The upper moulding space and the lower moulding space are used to make the upper sandbox cylinder block 16, the lower sandbox cylinder block 18 and the extrusion cylinder 37 move, and the upper sandbox 15 and the lower sandbox 17 clamp the model plate at a specific height Time formed. In addition, when the boxless molding machine 1 includes the lower supporting frame 41, the lower molding space may also be formed by the lower plate 40, the lower sand box 17, the lower supporting frame 41, and the model plate 19.

於上造模空間，經由上板25填充儲存於上砂槽22之鑄模砂。於下造模空間，經由下板40填充儲存於第2下槽31之鑄模砂。填充於上 造模空間及下造模空間之鑄模砂之CB可於30%~42%之範圍內設定。又，填充於上造模空間及下造模空間之鑄模砂之壓縮強度可於8N/cm2~15N/cm2之範圍內設定。另，因模型形狀或鑄模砂之CB(Compactability)而使造模之鑄模厚度產生變化，故第2下砂槽31之目標之高度係根據鑄模厚度而變化。即，第2下砂槽31之第2連接口38之高度產生變化。此時，藉由下槽缸體32，將第1下砂槽30之第1連接口35之高度調整於第2下砂槽31之第2連接口38之連接位置。如此之調整可藉由後述之控制裝置50(圖3)實現。 In the upper molding space, the molding sand stored in the upper sand tank 22 is filled through the upper plate 25. In the lower molding space, the molding sand stored in the second lower tank 31 is filled through the lower plate 40. The CB of the mold sand filled in the upper and lower mold spaces can be set within the range of 30% to 42%. In addition, the compressive strength of the molding sand filled in the upper and lower molding spaces can be set in the range of 8N/cm 2 ~ 15N/cm 2 . In addition, the mold thickness of the mold is changed due to the shape of the mold or the CB (Compactability) of the mold sand, so the target height of the second lower sand tank 31 changes according to the thickness of the mold. That is, the height of the second connection port 38 of the second lower sand tank 31 changes. At this time, with the lower tank cylinder 32, the height of the first connection port 35 of the first lower sand tank 30 is adjusted to the connection position of the second connection port 38 of the second lower sand tank 31. Such adjustment can be achieved by the control device 50 (FIG. 3) described later.

擠壓缸體37係以於上造模空間及下造模空間填充鑄模砂之狀態，藉由使第2下砂槽31向上方移動，而以上板25及下板40進行擠壓。藉此，對上造模空間之鑄模砂施加壓力而形成上鑄模。與此同時，對下造模空間之鑄模砂施加壓力而形成下鑄模。 The squeezing cylinder 37 is in a state where the upper molding space and the lower molding space are filled with mold sand. By moving the second lower sand tank 31 upward, the upper plate 25 and the lower plate 40 are pressed. Thereby, pressure is applied to the mold sand in the upper molding space to form the upper mold. At the same time, pressure is applied to the mold sand in the lower molding space to form the lower mold.

[鑄模砂投入溜槽] [Put mold sand into the chute]

鑄模砂投入溜槽24於上端部開口，且下端部分歧為兩部分。於上端部設有切換擋板43。切換擋板43係為了對分歧之下端部之任一者落下鑄模砂而變化傾斜方向。又，鑄模砂投入溜槽24之一下端部固定於上砂槽22之上部，鑄模砂投入溜槽24之另一下端部收容於漏斗34內，未固定。如此，藉由未固定第1下砂槽30側之下端部，下槽缸體32可將第1下砂槽30之第1連接口35之高度與上砂槽22獨立地控制。 The mold sand thrown into the chute 24 is open at the upper end, and the lower end is divided into two parts. A switching baffle 43 is provided at the upper end. The switching baffle 43 changes the inclination direction in order to drop the mold sand to any one of the lower ends of the branch. In addition, one lower end of the mold sand input chute 24 is fixed to the upper part of the upper sand chute 22, and the other lower end of the mold sand input chute 24 is accommodated in the hopper 34 and is not fixed. In this way, by not fixing the lower end of the first lower sand tank 30 side, the lower tank cylinder 32 can independently control the height of the first connection port 35 of the first lower sand tank 30 and the upper sand tank 22.

[下板之詳細情況] [Details of the lower board]

圖8係下板40之上表面側之立體圖。圖9係下板40之下表面側之立體圖。圖10係沿圖8之X-X線之剖視圖。如圖8~圖10所示，下板40具有至少1個供給口40a。於圖中，作為一例，形成有15個供給口40a。各供給口40a之內面傾斜為使下板40之上表面40c之開口較下板40之下表面40b之開口更窄。藉由如此之形狀(逆向之錐形狀)，於擠壓時，可避免於供給口40a強力壓縮鑄模砂。即，如此之形狀，於下 次之砂供給時，可避面砂堵塞於供給口40a。 FIG. 8 is a perspective view of the upper surface side of the lower plate 40. FIG. 9 is a perspective view of the lower surface side of the lower plate 40. Fig. 10 is a cross-sectional view taken along line X-X of Fig. 8; As shown in FIGS. 8 to 10, the lower plate 40 has at least one supply port 40a. In the figure, as an example, 15 supply ports 40a are formed. The inner surface of each supply port 40a is inclined so that the opening of the upper surface 40c of the lower plate 40 is narrower than the opening of the lower surface 40b of the lower plate 40. With such a shape (reverse taper shape), during extrusion, it is possible to avoid strong compression of the mold sand at the supply port 40a. That is, such a shape, below In the second sand supply, the surface sand can be prevented from clogging the supply port 40a.

又，於下板40之下表面40b設有具有面向1個或複數個供給口40a傾斜之傾斜面之突起40d。突起40d於XZ平面之剖面為大致三角形。突起40d之傾斜面之傾斜係與供給口40a之內面相同之傾斜。藉此，藉由突起40d使鑄模砂順暢地向供給口40a供給。又，藉由設置突起40d，可避免鑄模砂滯留於供給口40a間。 In addition, the lower surface 40b of the lower plate 40 is provided with a protrusion 40d having an inclined surface facing one or more supply ports 40a. The cross section of the protrusion 40d in the XZ plane is substantially triangular. The inclination of the inclined surface of the protrusion 40d is the same inclination as the inner surface of the supply port 40a. Thereby, the mold sand is smoothly supplied to the supply port 40a by the protrusion 40d. In addition, by providing the protrusion 40d, it is possible to prevent mold sand from stagnating between the supply ports 40a.

於下板40之上表面40c，亦可配置噴嘴板(噴嘴)44或閉合板45。噴嘴板44係板狀構件，且形成有連通於供給口之開口44a。開口44a之內面之傾斜可與供給口40a之傾斜相同，亦可為不同之傾斜。又，開口44a之形成位置可適當設定。例如，可於自噴嘴板44之中心向X軸方向或Y軸方向變位之位置形成開口44a，且藉由使供給口40a與開口44a不同軸，可使噴射方向轉換為水平方向。藉此，例如於模型存在較深位置之情形時，為了將鑄模砂供給至較深位置而可配置噴嘴板44。再者，藉由將開口44a之開口方向(開口之軸方向)相對於上下方向具有角度，可控制噴射方向。藉此，即使複雜之模型亦可確實地填充鑄模砂。閉合板45係板狀構件，且未形成開口。閉合板45係為了蓋住自複數個供給口40a中預先選擇之供給口而使用。例如，於模型存在較淺位置之情形時，為了蓋住對應於較淺位置之供給口40a而配置。如此，噴射板44及閉合板45可根據模型而適當選擇。又，噴嘴板44及閉合板45係例如，以相同厚度而形成，且各上表面位於相同平面上。藉此，可將完成之上下鑄模擠出至裝置外。 On the upper surface 40c of the lower plate 40, a nozzle plate (nozzle) 44 or a closed plate 45 may also be arranged. The nozzle plate 44 is a plate-shaped member, and an opening 44a communicating with the supply port is formed. The inclination of the inner surface of the opening 44a may be the same as the inclination of the supply port 40a, or a different inclination. In addition, the formation position of the opening 44a can be appropriately set. For example, the opening 44a may be formed at a position displaced from the center of the nozzle plate 44 in the X-axis direction or the Y-axis direction, and by making the supply port 40a and the opening 44a coaxial, the spray direction can be converted to a horizontal direction. Thereby, for example, when the mold has a deep position, the nozzle plate 44 can be arranged in order to supply the casting sand to the deep position. Furthermore, by making the opening direction of the opening 44a (the axial direction of the opening) an angle with respect to the vertical direction, the ejection direction can be controlled. Thereby, even a complicated model can be filled with mold sand reliably. The closing plate 45 is a plate-shaped member, and no opening is formed. The closing plate 45 is used to cover the supply port selected in advance from the plurality of supply ports 40a. For example, when the model has a shallow position, it is arranged to cover the supply port 40a corresponding to the shallow position. In this way, the spray plate 44 and the closing plate 45 can be appropriately selected according to the model. Moreover, the nozzle plate 44 and the closing plate 45 are formed, for example, with the same thickness, and each upper surface is located on the same plane. In this way, the finished upper and lower casting molds can be extruded out of the device.

[上板之詳細情況] [Details on the board]

圖11係上板25之下表面側之立體圖。圖12係上板25之上表面側之立體圖。圖13係沿圖11之ⅩⅢ-ⅩⅢ線之剖視圖。如圖11~圖13所示，上板25具有至少1個供給口25a。於圖中，作為一例，形成有15個供給口25a。各供給口25a之內面傾斜以使上板25之下表面25b之開口較上 板25之上表面25c之開口更窄。藉由如此之形狀(逆向之錐形狀)，於擠壓時，可避免於供給口25a強力壓縮鑄模砂。即，如此之形狀，鑄模砂以不因重力落下之程度於擠壓時固定，同時於下次之砂供給時，可避免砂堵塞於供給口25a。 FIG. 11 is a perspective view of the lower surface side of the upper plate 25. FIG. FIG. 12 is a perspective view of the upper surface side of the upper plate 25. FIG. Figure 13 is a cross-sectional view taken along the line XIII-XIII of Figure 11. As shown in FIGS. 11 to 13, the upper plate 25 has at least one supply port 25a. In the figure, as an example, 15 supply ports 25a are formed. The inner surface of each supply port 25a is inclined so that the opening of the lower surface 25b of the upper plate 25 is higher The opening of the upper surface 25c of the plate 25 is narrower. With such a shape (reversely tapered shape), it is possible to avoid strong compression of the mold sand at the supply port 25a during extrusion. That is, with such a shape, the mold sand is fixed at the time of extrusion to the extent that it does not fall due to gravity, and at the same time, the sand can be prevented from being blocked in the supply port 25a during the next sand supply.

又，於上板25之上表面25c設有具有面向1個或複數個之供給口25a傾斜之傾斜面之突起25d。突起25d於XZ平面之剖面為大致三角形。突起25d之傾斜面之傾斜與供給口25a之內面為相同之傾斜。藉此，藉由突起25d使鑄模砂順暢地向供給口25a供給。又，藉由設置突起25d，可避免鑄模砂滯留於供給口25a間。 In addition, on the upper surface 25c of the upper plate 25, there is provided a protrusion 25d having an inclined surface facing one or a plurality of supply ports 25a. The cross section of the protrusion 25d in the XZ plane is substantially triangular. The slope of the inclined surface of the protrusion 25d is the same slope as the inner surface of the supply port 25a. Thereby, the mold sand is smoothly supplied to the supply port 25a by the protrusion 25d. In addition, by providing the protrusion 25d, it is possible to prevent mold sand from stagnating between the supply ports 25a.

於上板25之下表面25b，亦可配置噴嘴板(噴嘴)46或閉合板47。噴嘴板46係板狀構件，且形成有連通於供給口之開口46a。開口46a之內面之傾斜可與供給口25a之傾斜相同，亦可為不同之傾斜。又，開口46a之形成位置可適當設定。例如，可於自噴嘴板46之中心向X軸方向或Y軸方向變位之位置形成開口46a，且藉由使供給口25a與開口46a不同軸，使噴射方向轉換為水平方向。藉此，例如於模型存在較深位置之情形時，為了將鑄模砂供給至較深位置而可配置噴嘴板46。再者，藉由將開口46a之開口方向(開口之軸方向)相對於上下方向而具有角度，亦可控制噴射方向。藉此，即使複雜之模型亦可確實地填充鑄模砂。閉合板47係板狀構件，且未形成開口。閉合板47係為了蓋住自複數個供給口25a中預先選擇之供給口而使用。例如，於模型存在較淺位置之情形時，為了蓋住對應於較淺位置之供給口25a而配置。如此，噴射板46及閉合板47可根據模型而適當選擇。 On the lower surface 25b of the upper plate 25, a nozzle plate (nozzle) 46 or a closed plate 47 can also be arranged. The nozzle plate 46 is a plate-shaped member, and an opening 46a communicating with the supply port is formed. The inclination of the inner surface of the opening 46a may be the same as the inclination of the supply port 25a, or a different inclination. In addition, the forming position of the opening 46a can be appropriately set. For example, the opening 46a may be formed at a position shifted from the center of the nozzle plate 46 in the X-axis direction or the Y-axis direction, and by making the supply port 25a and the opening 46a coaxial, the spray direction can be converted to the horizontal direction. Thereby, for example, when the mold has a deep position, the nozzle plate 46 can be arranged in order to supply the casting sand to the deep position. Furthermore, by making the opening direction of the opening 46a (the axial direction of the opening) an angle with respect to the vertical direction, the ejection direction can also be controlled. Thereby, even a complicated model can be filled with mold sand reliably. The closing plate 47 is a plate-shaped member, and no opening is formed. The closing plate 47 is used to cover the supply port selected in advance from the plurality of supply ports 25a. For example, when the model has a shallow position, it is arranged to cover the supply port 25a corresponding to the shallow position. In this way, the spray plate 46 and the closing plate 47 can be appropriately selected according to the model.

[襯套] [bushing]

上砂箱15、下砂箱17、及第2下砂槽31係藉由筒狀之襯套而可移動地安裝於4個導件12。作為一例關於上砂箱15進行說明。圖14係說明襯套49之概要圖。圖15係圖14之剖視圖。如圖14及圖15所示，上砂 箱15係藉由於其上下端安裝襯套49，而可移動地安裝於導件12。筒狀之襯套49亦可結合複數種構件而構成。具體而言，襯套49亦可結合以於軸方向平行之面對半之構件而構成。圖16係說明對半之襯套49卸下之俯視圖。圖17係說明對半之襯套49卸下之剖視圖。如圖16及圖17所示，藉由使用對半之襯套49，無須自導件12卸除上砂箱15、下砂箱17、及第2下砂槽31，而可僅卸下襯套49進行更換，故維護性優異。 The upper sand box 15, the lower sand box 17, and the second lower sand tank 31 are movably installed on the four guides 12 by cylindrical bushes. As an example, the upper flask 15 will be described. FIG. 14 is a schematic diagram illustrating the bush 49. Fig. 15 is a sectional view of Fig. 14. As shown in Figure 14 and Figure 15, the upper sand The box 15 is movably installed on the guide 12 by installing bushings 49 at its upper and lower ends. The cylindrical bush 49 may also be formed by combining a plurality of members. Specifically, the bush 49 may also be formed by combining a half-facing member that is parallel to the axial direction. Fig. 16 is a plan view illustrating the half of the bushing 49 removed. Figure 17 is a cross-sectional view illustrating the half of the bushing 49 removed. As shown in Figures 16 and 17, by using the half-and-half bushing 49, it is not necessary to remove the upper sand box 15, the lower sand box 17, and the second lower sand tank 31 from the guide 12, and only the lining can be removed The sleeve 49 can be replaced, so the maintainability is excellent.

[控制裝置] [Control device]

無箱造模機1亦可包含控制裝置50。控制裝置50係包含處理器等之控制部、記憶體等之記憶部、輸入裝置、顯示裝置等之輸入輸出部、及網路卡等之通信部等之電腦，且控制無箱造模機1之各部，例如鑄模砂供給系統、壓縮空氣供給系統、驅動系統及電源系統等。於該控制裝置50中，使用輸入裝置，操作員可進行用以管理無箱造模機之指令之輸入操作等，又，藉由顯示裝置，可將無箱造模機1之運轉狀況可視化而顯示。再者，於控制裝置50之記憶部中，儲存用以藉由處理器而控制於無箱造模機1所執行之各種處理之控制程式，或用以根據造模條件而對無箱造模機1之各構成部執行處理之程式。 The boxless molding machine 1 may also include a control device 50. The control device 50 is a computer including a control unit such as a processor, a memory unit such as a memory, an input/output unit such as an input device, a display device, and a communication unit such as a network card, and controls the boxless molding machine 1 The various parts, such as mold sand supply system, compressed air supply system, drive system and power supply system. In the control device 50, using an input device, the operator can perform input operations for managing the instructions of the boxless molding machine, etc., and with the display device, the operating status of the boxless molding machine 1 can be visualized. display. Furthermore, in the memory portion of the control device 50, a control program used to control various processes executed in the boxless molding machine 1 by a processor, or used for modeling the boxless molding machine according to the molding conditions Each component of the machine 1 executes the processing program.

[造模處理] [Modeling treatment]

針對本實施形態之造模處理進行概要說明。圖18係說明一實施形態之無箱造模機之造模處理之流程圖。如圖18所示之造模處理係造模將一組上鑄模及下鑄模造模之處理。如圖18所示之造模處理將無箱造模機1之姿勢為原位置(初始位置)作為條件之一而自動啟動。於無箱造模機1之姿勢非原位置之情形時，以手動動作使其移動至原位置。在如圖3所示之無箱造模機1之姿勢(原位置)下，若按壓自動啟動按鈕，則開始如圖18所示之造模處理。 An overview of the modeling process of this embodiment will be described. Fig. 18 is a flowchart illustrating the molding process of the boxless molding machine of an embodiment. The molding process shown in Figure 18 is a process of molding a set of upper and lower molds. The molding process shown in FIG. 18 is automatically started with the posture of the boxless molding machine 1 being the original position (initial position) as one of the conditions. When the posture of the boxless molding machine 1 is not at the original position, it is moved to the original position by manual action. In the posture (original position) of the boxless molding machine 1 shown in FIG. 3, if the automatic start button is pressed, the molding process shown in FIG. 18 will start.

於造模處理開始之情形時，首先進行梭入處理(S12)。圖19係說明梭入處理之概要圖。如圖19所示，於梭入處理中，搬送缸體21將載 置有模型板19之搬送板20向造模位置移動。 When the molding process starts, the shuttle-in process is first performed (S12). Fig. 19 is a schematic diagram illustrating the shuttle-in process. As shown in Figure 19, in the shuttle-in process, the transport cylinder 21 will load The conveying plate 20 on which the model plate 19 is placed moves to the mold making position.

接著，進行框設置處理(S14)。圖20係說明框設置處理之概要圖。如圖20所示，於框設置處理中，上砂箱缸體16、下砂箱缸體18(圖2)、下承框缸體42及擠壓缸體37配合所要造模之鑄模厚度進行伸縮。藉此，上砂箱15移動至特定位置，且下砂箱17抵接於模型板19，其後，藉由將載有模型板19之下砂箱17移動至特定位置，而成為於上砂箱15及下砂箱17之間夾持模型板19之狀態。且，第2下砂槽31及下承框41上升，且下承框41抵接於下砂箱17。又，藉由下槽缸體32伸縮，於上下方向移動第1下砂槽30，而成為第1下砂槽30之第1連接口35之高度與第2下砂槽31之第2連接口38之高度一致之狀態。此時，上造模空間及下造模空間成為由控制裝置50決定之狀態(高度)。 Next, frame setting processing (S14) is performed. Fig. 20 is a schematic diagram illustrating frame setting processing. As shown in Figure 20, in the frame setting process, the upper flask cylinder 16, the lower flask cylinder 18 (Figure 2), the lower frame cylinder 42, and the extrusion cylinder 37 are performed according to the thickness of the mold to be molded. Telescopic. As a result, the upper sand box 15 moves to a specific position, and the lower sand box 17 abuts against the model plate 19, and then, by moving the lower sand box 17 with the model plate 19 to a specific position, it becomes the upper sand box. The state where the model plate 19 is clamped between the box 15 and the lower sand box 17. In addition, the second lower sand tank 31 and the lower supporting frame 41 rise, and the lower supporting frame 41 abuts against the lower sand box 17. In addition, by expanding and contracting the lower tank cylinder 32, the first lower sand tank 30 is moved in the vertical direction to become the height of the first connection port 35 of the first lower sand tank 30 and the second connection port of the second lower sand tank 31 38 is a highly consistent state. At this time, the upper molding space and the lower molding space are in a state (height) determined by the control device 50.

接著，進行通氣處理(S16)。圖21係說明通氣處理之概要圖。如圖21所示，於通氣處理中，密封機構密封第1下砂槽30之第1連接口35與第2下砂槽31之第2連接口38。且，上砂槽22之滑動門23、及第1下砂槽30之滑動門33關閉，壓縮空氣源及電空比例閥將壓縮空氣供給至上砂槽22及第1下砂槽30內。藉此，一面使鑄模砂流動，一面於上造模空間及下造模空間填充鑄模砂。作為一例，於滿足所設定之壓力及時間之情形時，結束通氣處理。 Next, aeration treatment is performed (S16). Fig. 21 is a schematic diagram illustrating aeration treatment. As shown in FIG. 21, the sealing mechanism seals the first connection port 35 of the first lower sand tank 30 and the second connection port 38 of the second lower sand tank 31 during the aeration process. In addition, the sliding door 23 of the upper sand tank 22 and the sliding door 33 of the first lower sand tank 30 are closed, and the compressed air source and the electro-pneumatic proportional valve supply compressed air into the upper sand tank 22 and the first lower sand tank 30. Thereby, while the casting sand is allowed to flow, the upper and lower casting spaces are filled with casting sand. As an example, when the set pressure and time conditions are met, the ventilation process is ended.

接著，進行擠壓處理(S18)。圖22係說明擠壓處理之概要圖。如圖22所示，於擠壓處理中，於通氣處理(S16)所動作之密封機構解除密封，且藉由進而伸長擠壓缸體37，使第2下砂槽31進而上升。藉此，安裝於第2下砂槽31之下板40進入下承框41內，壓縮下造模空間內之鑄模砂之同時，上板25進入上砂箱15內，壓縮上造模空間之鑄模砂。於擠壓缸體37以油壓電路控制之情形時，例如於可判斷為油壓電路之油壓與設定之油壓相等時，結束擠壓處理。另，擠壓處理中，於上砂箱缸體16、下砂箱缸體18及下承框缸體42以油壓電路控制之情形 時，各缸體係設定於空閒電路(free circuit)。藉此，各缸體負於擠壓力而收縮。 Next, a pressing process is performed (S18). Fig. 22 is a schematic diagram illustrating the extrusion process. As shown in FIG. 22, in the squeezing process, the sealing mechanism operated in the venting process (S16) releases the seal, and by further extending the squeezing cylinder 37, the second lower sand tank 31 is further raised. Thereby, the lower plate 40 installed in the second lower sand tank 31 enters the lower supporting frame 41, and while compressing the casting sand in the lower molding space, the upper plate 25 enters the upper sand box 15 to compress the upper molding space. Molding sand. When the squeeze cylinder 37 is controlled by a hydraulic circuit, for example, when it can be determined that the hydraulic pressure of the hydraulic circuit is equal to the set hydraulic pressure, the squeeze process is ended. In addition, in the extrusion process, the upper flask cylinder 16, the lower flask cylinder 18 and the lower frame cylinder 42 are controlled by hydraulic circuits At this time, each cylinder system is set to a free circuit. As a result, each cylinder is contracted under the squeezing force.

接著，進行脫模處理(S20)。圖23係說明脫模處理之概要圖。如圖23所示，於脫模處理中，下承框缸體42收縮而使下承框41下降。其後，擠壓缸體37收縮，使第2下砂槽31下降，接著，使載置模型板19及搬送板20之下砂箱17下降。且，進行模型自上砂箱15之脫模。於下砂箱17下降至固定部(未圖示)時，模型板19及搬送板20被支持於固定部。藉此，進行模型自下砂箱17之脫模。 Next, a mold release treatment is performed (S20). Fig. 23 is a schematic diagram illustrating the demolding process. As shown in FIG. 23, in the demolding process, the lower frame cylinder 42 shrinks and the lower frame 41 is lowered. After that, the squeeze cylinder 37 is contracted to lower the second lower sand tank 31, and then the lower sand box 17 under the placing model plate 19 and the conveying plate 20 is lowered. And, demolding the model from the upper sand box 15 is performed. When the lower flask 17 is lowered to a fixed part (not shown), the model plate 19 and the conveying plate 20 are supported by the fixed part. In this way, the model is demolded from the lower flask 17.

接著，進行梭出處理(S22)。圖24係說明梭出處理之概要圖。如圖24所示，於梭出處理中，藉由搬送缸體21收縮，將搬送板20向退避位置移動。於如圖24所示之狀態，若有需要則將芯體配置於上砂箱15或下砂箱17。 Next, the shuttle process is performed (S22). Fig. 24 is a schematic diagram illustrating the shuttle process. As shown in FIG. 24, in the shuttle-out process, by the contraction of the transport cylinder 21, the transport plate 20 is moved to the retracted position. In the state shown in FIG. 24, the core is arranged in the upper sand box 15 or the lower sand box 17 if necessary.

接著，進行合框處理(S24)。圖25係說明合框處理之概要圖。如圖25所示，於合框處理中，藉由下砂箱缸體18收縮，擠壓缸體37伸長，而使下砂箱17及第2下砂槽31上升，而進行合框。 Next, the framing process is performed (S24). Fig. 25 is a schematic diagram illustrating the framing process. As shown in FIG. 25, in the framing process, the lower flask cylinder 18 shrinks and the squeeze cylinder 37 expands, so that the lower flask 17 and the second lower flask 31 are raised to perform framing.

接著，進行拔框處理(S26)。圖26係說明拔框處理之概要圖。如圖26所示，於拔框處理中，藉由上砂箱缸體16及下砂箱缸體18收縮，將上砂箱15及下砂箱17上升至上升端，而進行拔框。 Next, frame drawing processing is performed (S26). Fig. 26 is a schematic diagram illustrating the frame pulling process. As shown in FIG. 26, in the frame pulling process, by shrinking the upper sand box cylinder 16 and the lower sand box cylinder 18, the upper sand box 15 and the lower sand box 17 are raised to the rising end to perform frame pulling.

接著，進行第1框分離處理(S28)。圖27係說明第1框分離處理(前半)之概要圖。如圖27所示，於第1框分離處理中，以將鑄模載置於第2下砂槽31之下板40上之狀態，使擠壓缸體37收縮，且使第2下砂槽31下降。此時，下砂箱缸體18伸長，下砂箱17下降，同時停止於搬出鑄模時於不會造成妨礙之位置。 Next, the first frame separation process is performed (S28). Fig. 27 is a schematic diagram illustrating the first frame separation process (first half). As shown in FIG. 27, in the first frame separation process, the mold is placed on the lower plate 40 of the second lower sand tank 31, the extrusion cylinder 37 is contracted, and the second lower sand tank 31 decline. At this time, the lower sand box cylinder 18 is extended, the lower sand box 17 is lowered, and at the same time, it stops at a position where it will not interfere when the mold is removed.

接著，進行模製擠出處理(S30)。圖28係說明模製擠出處理之概要圖。如圖28所示，於模製擠出處理中，藉由擠出缸體48(參照圖2)伸長，將上鑄模及下鑄模向裝置外(例如造模線)搬出。 Next, a molding extrusion process is performed (S30). Fig. 28 is a schematic diagram illustrating the molding extrusion process. As shown in FIG. 28, in the molding extrusion process, the extrusion cylinder 48 (refer to FIG. 2) is extended, and the upper mold and the lower mold are carried out of the apparatus (for example, a molding line).

接著，進行第2框分離處理(S32)。圖29係說明第2框分離處理(後半)之概要圖。如圖29所示，於第2框分離處理中，下砂箱缸體18伸長，將下砂箱17返回至原位置。 Next, the second frame separation process (S32) is performed. Fig. 29 is a schematic diagram for explaining the second frame separation process (second half). As shown in FIG. 29, in the second frame separation process, the lower flask cylinder 18 is extended, and the lower flask 17 is returned to the original position.

以上，結束造模一組上鑄模及下鑄模之處理。 Above, the process of creating a set of upper and lower molds is ended.

[第1下砂槽之位置調整] [Adjustment of the position of the first bottom sand tank]

說明於上述之框設置處理(S14)所進行之第1下砂槽30之位置調整之詳細情況。位置調整係藉由控制裝置50實現。圖30係一實施形態之無箱造模機1之控制裝置50之功能方塊圖。如圖30所示，控制裝置50連接於第1檢測器51、第2檢測器52、第3檢測器53、第4檢測器54、第5檢測器55及下槽缸體32。另，控制裝置50無須連接於第1檢測器51~第5檢測器55之全部。控制裝置50係例如可僅連接於第1檢測器51及第2檢測器52，亦可僅連接於第3檢測器53~第5檢測器55。又，無箱造模機1無須具備第1檢測器51~第5檢測器55之全部。 The details of the position adjustment of the first lower sand tank 30 performed in the frame setting process (S14) described above will be described. The position adjustment is realized by the control device 50. FIG. 30 is a functional block diagram of the control device 50 of the boxless molding machine 1 according to an embodiment. As shown in FIG. 30, the control device 50 is connected to the first detector 51, the second detector 52, the third detector 53, the fourth detector 54, the fifth detector 55, and the lower tank cylinder 32. In addition, the control device 50 does not need to be connected to all of the first detector 51 to the fifth detector 55. The control device 50 may be connected only to the first detector 51 and the second detector 52, or may be connected only to the third detector 53 to the fifth detector 55, for example. In addition, the boxless mold making machine 1 does not need to include all of the first detector 51 to the fifth detector 55.

第1檢測器51係檢測第1下砂槽30之高度位置。圖31係顯示第1檢測器51之一例之俯視圖。圖32係顯示第1檢測器51之一例之前視圖。如圖31及圖32所示，第1檢測器51包含磁石60及磁場檢測部61。磁石60係安裝於與第1下砂槽30一起移動之構件62、63。磁石60亦可直接安裝於第1下砂槽30。磁石60係其一部分缺口之環狀構件。磁場檢測部61係安裝於固定框架即支持框架14，包含於上下方向延伸之縱向構件，並檢測與磁石60之間產生之磁場。磁場檢測部61係沿著第1下砂槽30之移動方向而設置。磁石60係以磁場檢測部61位於其內部之方式而配置。因與第1下砂槽30同時移動磁石60，故第1檢測器51可藉由檢測磁場位置而檢測第1下砂槽30之高度位置(絕對位置)。 The first detector 51 detects the height position of the first lower sand tank 30. FIG. 31 is a plan view showing an example of the first detector 51. FIG. 32 is a front view showing an example of the first detector 51. As shown in FIGS. 31 and 32, the first detector 51 includes a magnet 60 and a magnetic field detection unit 61. The magnet 60 is installed on the members 62 and 63 that move together with the first lower sand tank 30. The magnet 60 can also be directly installed in the first lower sand tank 30. The magnet 60 is a ring-shaped member with a part notch. The magnetic field detecting part 61 is installed in the fixed frame, ie, the supporting frame 14, includes a longitudinal member extending in the vertical direction, and detects the magnetic field generated between the magnet 60 and the fixed frame. The magnetic field detection unit 61 is provided along the movement direction of the first lower sand tank 30. The magnet 60 is arranged so that the magnetic field detection part 61 is located inside. Since the magnet 60 is moved simultaneously with the first lower sand tank 30, the first detector 51 can detect the height position (absolute position) of the first lower sand tank 30 by detecting the position of the magnetic field.

第2檢測器52檢測第2下砂槽31(下板40)之高度位置。因第2檢測器52之構成與第1檢測器51相同，故省略說明。另，於第2檢測器52之情形時，作為一例，於第2下砂槽31設置磁石60，於造模部A1之框架 等之固定構件設置磁場檢測部61。 The second detector 52 detects the height position of the second lower sand tank 31 (lower plate 40). Since the configuration of the second detector 52 is the same as that of the first detector 51, the description is omitted. In addition, in the case of the second detector 52, as an example, a magnet 60 is installed in the second lower sand tank 31, and the frame of the molding part A1 A magnetic field detecting unit 61 is provided on the fixed member such as the one.

第3檢測器53檢測上砂箱15之高度位置。因第3檢測器53之構成與第1檢測器51相同，故省略說明。另，於第3檢測器53之情形時，作為一例，於上砂箱15設置磁石60，於造模部A1之框架等之固定構件設置磁場檢測部61。 The third detector 53 detects the height position of the upper sand box 15. Since the configuration of the third detector 53 is the same as that of the first detector 51, the description is omitted. In addition, in the case of the third detector 53, as an example, a magnet 60 is provided on the upper flask 15, and a magnetic field detection unit 61 is provided on a fixed member such as a frame of the molding part A1.

第4檢測器54檢測下砂箱17之高度位置。因第4檢測器54之構成與第1檢測器51相同，故省略說明。另，於第4檢測器54之情形時，作為一例，於下砂箱17設置磁石60，於造模部A1之框架等之固定構件設置磁場檢測部61。 The fourth detector 54 detects the height position of the lower flask 17. Since the configuration of the fourth detector 54 is the same as that of the first detector 51, the description is omitted. In addition, in the case of the fourth detector 54, as an example, a magnet 60 is provided in the lower flask 17, and a magnetic field detection part 61 is provided in a fixed member such as a frame of the molding part A1.

第5檢測器55檢測下承框41之高度位置。因第5檢測器55之構成與第1檢測器51相同，故省略說明。另，於第5檢測器55之情形時，作為一例，於下承框41設置磁石60，於造模部A1之框架等之固定構件設置磁場檢測部61。 The fifth detector 55 detects the height position of the lower frame 41. Since the configuration of the fifth detector 55 is the same as that of the first detector 51, the description is omitted. In addition, in the case of the fifth detector 55, as an example, a magnet 60 is provided on the lower supporting frame 41, and a magnetic field detecting portion 61 is provided on a fixed member such as a frame of the molding portion A1.

控制裝置50包含辨識部70、控制部80及記憶部90。辨識部70係基於第1檢測器51之檢測結果，辨識移動中之第1下砂槽30之高度位置(第1連接口35之高度位置)及移動完成。辨識部70係基於第2檢測器52之檢測結果，辨識移動中之第2下砂槽31之高度位置(第2連接口38之高度位置)及移動完成。辨識部70係基於第3檢測器53之檢測結果，辨識移動中之上砂箱15之高度位置及移動完成。辨識部70係基於第4檢測器54之檢測結果，辨識移動中之下砂箱17之高度位置及移動完成。辨識部70係基於第5檢測器55之檢測結果，辨識移動中之下承框41之高度位置及移動完成。如此，辨識部70基於檢測器之結果，可辨識各構成要件之移動中之高度位置及移動完成。又，辨識部70基於藉由第3檢測器53於擠壓完成時所檢測之上砂箱15之高度位置，亦可辨識擠壓完成時之上鑄模之厚度。又，辨識部70基於藉由第2檢測器52於擠壓完成時所檢測之第2下砂槽31(下板40)之高度位置，及藉由第5檢測 器55於擠壓完成時所檢測之下承框41之高度位置，亦可辨識擠壓完成時之下鑄模之厚度。 The control device 50 includes an identification unit 70, a control unit 80 and a storage unit 90. The recognition unit 70 recognizes the height position of the first lower sand tank 30 (the height position of the first connection port 35) and the movement is completed based on the detection result of the first detector 51. The recognition unit 70 recognizes the height position of the second lower sand tank 31 (the height position of the second connection port 38) and the movement is completed based on the detection result of the second detector 52. The recognition part 70 recognizes the height position of the upper sand box 15 during the movement and the completion of the movement based on the detection result of the third detector 53. The recognition unit 70 recognizes the height position of the lower sand box 17 during the movement and the completion of the movement based on the detection result of the fourth detector 54. Based on the detection result of the fifth detector 55, the recognition unit 70 recognizes the height position of the lower frame 41 during the movement and the movement is completed. In this way, the recognition unit 70 can recognize the height position and completion of the movement of each constituent element based on the result of the detector. In addition, the recognition unit 70 can also recognize the thickness of the upper mold when the extrusion is completed based on the height position of the upper flask 15 detected by the third detector 53 when the extrusion is completed. In addition, the recognition unit 70 is based on the height position of the second lower sand tank 31 (lower plate 40) detected by the second detector 52 when the extrusion is completed, and by the fifth detection The height position of the lower frame 41 detected by the device 55 when the extrusion is completed can also identify the thickness of the lower mold when the extrusion is completed.

辨識部70係將藉由第3檢測器53於擠壓完成時所檢測之上砂箱15之高度位置、藉由第2檢測器52於擠壓完成時所檢測之第2下砂槽31(下板40)之高度位置，及藉由第5檢測器55於擠壓完成時所檢測之下承框41之高度位置作為造模結果記憶於記憶部90。此時，辨識部70亦可將造模條件與造模結果建立關聯而記憶於記憶部90。造模條件係造模時預先設定之條件，例如，模型型號、模型形狀、及各構成要件之目標高度位置等。如此，辨識部70及記憶部90取得實績資訊並記憶。 The identification unit 70 detects the height position of the upper sand box 15 when the extrusion is completed by the third detector 53 and the second lower sand tank 31 which is detected by the second detector 52 when the extrusion is completed. The height position of the lower plate 40) and the height position of the lower frame 41 detected by the fifth detector 55 when the extrusion is completed are stored in the memory 90 as the result of molding. At this time, the identification unit 70 may also associate the modeling conditions with the modeling results and store them in the memory unit 90. Modeling conditions are pre-set conditions during model building, such as model model, model shape, and target height position of each component. In this way, the recognition unit 70 and the memory unit 90 obtain and memorize the actual performance information.

控制部80基於記憶於記憶部90之上次之造模結果，決定於下次之砂填充之上砂箱15之高度位置及下承框41之高度位置。如此，控制部80基於第3檢測器53及第5檢測器55之檢測結果，進行反饋控制。 The control part 80 determines the height position of the upper sand box 15 and the height position of the lower frame 41 for the next sand filling based on the result of the previous modeling stored in the memory part 90. In this way, the control unit 80 performs feedback control based on the detection results of the third detector 53 and the fifth detector 55.

另，辨識部70不僅將第3檢測器53及第5檢測器55之檢測結果，亦可將自第1檢測器51~第5檢測器55選擇之其他組合之檢測結果、全部之檢測結果、或上鑄模及下鑄模之厚度作為造模結果而記憶於記憶部90。於該情形，控制部80可基於記憶於記憶部90之造模結果進行與上述反饋控制不同之反饋控制。例如，控制部80亦可基於於擠壓完成時藉由第1檢測器51所檢測之第1下砂槽30之高度位置(第1連接口35之高度位置)與於擠壓完成時藉由第2檢測器52所檢測之第2下砂槽31之高度位置(第2連接口38之高度位置)，決定於下次之砂填充時之第1下砂槽30之高度位置及第2下砂槽31之高度位置。藉此，控制部80基於第1檢測器51及第2檢測器52之檢測結果，可以第1連接口35與第2連接口38之高度位置一致之方式使擠壓缸體37及下槽缸體32動作。 In addition, the recognition unit 70 not only combines the detection results of the third detector 53 and the fifth detector 55, but also the detection results of other combinations selected from the first detector 51 to the fifth detector 55, all the detection results, Or the thicknesses of the upper mold and the lower mold are memorized in the memory portion 90 as a result of molding. In this case, the control unit 80 can perform a feedback control different from the above-mentioned feedback control based on the modeling result stored in the memory unit 90. For example, the control unit 80 may also be based on the height position of the first lower sand tank 30 (the height position of the first connecting port 35) detected by the first detector 51 when the squeezing is completed and by The height position of the second lower sand tank 31 (the height position of the second connecting port 38) detected by the second detector 52 is determined by the height position of the first lower sand tank 30 and the second lower sand tank during the next sand filling The height position of the sand trough 31. Thereby, the control unit 80 can make the squeeze cylinder 37 and the lower tank so that the height positions of the first connection port 35 and the second connection port 38 coincide with each other based on the detection results of the first detector 51 and the second detector 52. Body 32 actions.

圖33係說明一實施形態之無箱造模機1之目標設定處理之流程圖。如圖33所示之處理係於框設置處理(S14)中執行。最初，控制部 80取得取得記憶於記憶部90之上次之造模結果作為資訊取得處理(S40)。接著，控制部80決定第1連接口35之高度位置之目標值作為目標值設定處理(S42)。控制部80係例如於上次之第1連接口35之高度位置與上次之第2連接口38之高度位置存在差值之情形時，為了抵消差值而決定第1連接口35之高度位置之目標值。以上，結束無箱造模機1之目標設定處理。 FIG. 33 is a flowchart illustrating the target setting process of the boxless molding machine 1 of an embodiment. The processing shown in FIG. 33 is executed in the frame setting processing (S14). Initially, the control department 80 obtains and acquires the previous modeling result stored in the memory portion 90 as information acquisition processing (S40). Next, the control unit 80 determines the target value of the height position of the first connection port 35 as a target value setting process (S42). For example, when there is a difference between the height position of the first connection port 35 last time and the height position of the second connection port 38 last time, the control unit 80 determines the height position of the first connection port 35 to offset the difference. The target value. Above, the target setting process of the boxless molding machine 1 is ended.

以上，根據本實施形態之無箱造模機1，將對下砂箱17供給鑄模砂之砂槽分割為第1下砂槽30及第2下砂槽31，藉由擠壓缸體37使第2下砂槽31向上下方向移動，藉由下槽缸體32使第1下砂槽30向上下方向移動。如此，因第1下砂槽30及第2下砂槽31可獨立地上下移動，故可以使與第2下砂槽31之第2連接口38之高度一致之方式，調整第1下砂槽30之第1連接口35之高度。藉此，第1連接口35與第2連接口38之連結部分之鑄模砂之流動相同，可抑制砂堵塞發生。因此，無須考慮砂堵塞而調整鑄模砂之CB，可使用對於鑄模之造模性或鑄物製品之品質最佳之鑄模砂，結果可獲得優異之鑄模及鑄物製品。 As described above, according to the boxless molding machine 1 of the present embodiment, the sand tank for supplying mold sand to the lower sand box 17 is divided into the first lower sand tank 30 and the second lower sand tank 31, and the squeeze cylinder 37 makes The second lower sand tank 31 moves in the up and down direction, and the lower tank cylinder 32 moves the first lower sand tank 30 in the up and down direction. In this way, since the first lower sand tank 30 and the second lower sand tank 31 can move up and down independently, the height of the second connection port 38 of the second lower sand tank 31 can be adjusted to adjust the first lower sand tank. The height of the first connecting port 35 of 30. Thereby, the flow of the molding sand in the connection part of the first connection port 35 and the second connection port 38 is the same, and the occurrence of sand clogging can be suppressed. Therefore, it is not necessary to adjust the CB of the mold sand without considering the sand clogging, and the mold sand that is the best for the moldability of the mold or the quality of the cast product can be used, and as a result, excellent molds and cast products can be obtained.

又，根據本實施形態之無箱造模機1，可僅使經分割之第2下砂槽31上下移動而實現鑄模砂向下砂箱17之填充及擠壓。於第1下砂槽30採用固定連接於第2下砂槽31之一體型之砂槽之情形時，因於槽之左側施加比右側更大之載荷，故存在槽上升時之角度與下降時之角度不同之虞。如此之角度差異有於自圖型卸除鑄模時引起脫模不良之虞。於此相對，根據本實施形態之無箱造模機1，因可減輕因載荷不平衡所致之傾斜，故結果可獲得優異之鑄模及鑄物製品。 In addition, according to the boxless molding machine 1 of the present embodiment, only the divided second lower sand tank 31 can be moved up and down to realize the filling and pressing of the casting sand to the lower sand box 17. When the first lower sand trough 30 adopts a sand trough that is fixedly connected to the second lower sand trough 31, since a larger load is applied to the left side of the trough than the right side, there is an angle when the trough rises and when it is lowered The angle is different. Such a difference in angle may cause poor mold release when removing the mold from the pattern. On the other hand, according to the boxless molding machine 1 of the present embodiment, since the tilt caused by the load imbalance can be reduced, as a result, excellent molds and cast products can be obtained.

又，根據本實施形態之無箱造模機1，因經由透過構件22a、30a之整面而自側方朝儲存空間供給壓縮空氣，故提高鑄模砂之流動性。於該狀態下，進而藉由壓縮空氣向上砂箱或下砂箱吹入鑄模砂，藉此，可減小鑄模砂之吹入阻力。因此，可抑制壓縮空氣源之電力消 耗，同時可抑制砂堵塞發生。 Furthermore, according to the boxless molding machine 1 of this embodiment, since compressed air is supplied from the side to the storage space through the entire surface of the permeable members 22a, 30a, the fluidity of the molding sand is improved. In this state, the molding sand is blown into the upper flask or the lower flask by compressed air, thereby reducing the blowing resistance of the mold sand. Therefore, the power consumption of the compressed air source can be suppressed. At the same time, it can prevent sand clogging.

又，根據本實施形態之無箱造模機1，可將存在於上板25之供給口25a內之鑄模砂，於擠壓後以不因重力落下之程度藉由擠壓力固定。 Furthermore, according to the boxless molding machine 1 of the present embodiment, the molding sand existing in the supply port 25a of the upper plate 25 can be fixed by the pressing force to the extent that it does not fall due to gravity after being pressed.

又，根據本實施形態之無箱造模機1，因藉由突起25d、40d將鑄模砂引導至供給口，故可防止鑄模砂滯留於供給口附近。 Moreover, according to the boxless mold making machine 1 of this embodiment, since the mold sand is guided to the supply port by the protrusions 25d and 40d, it is possible to prevent the mold sand from staying in the vicinity of the supply port.

又，根據本實施形態之無箱造模機1，藉由調整噴嘴板44、46之噴嘴方向，可進行配合模型形狀之供給。 In addition, according to the boxless molding machine 1 of the present embodiment, by adjusting the nozzle directions of the nozzle plates 44 and 46, it is possible to supply the mold according to the shape.

又，根據本實施形態之無箱造模機1，因可藉由閉合板45、47之有無選擇供給鑄模砂之供給口，故可進行配合模型形狀之供給。 In addition, according to the boxless molding machine 1 of the present embodiment, since the supply port of the mold sand can be selectively supplied by the presence or absence of the closing plates 45, 47, the supply can be performed according to the shape of the mold.

又，根據本實施形態之無箱造模機1，因上砂箱15、下砂箱17及第2下砂槽31可移動地安裝於4個導件12，故穩定上砂箱15、下砂箱17及第2下砂槽31之移動。藉此，可穩定地進行擠壓。因此，可提高脫模等之性能，且結果獲得優異之鑄模及鑄物製品。 In addition, according to the boxless molding machine 1 of this embodiment, the upper sand box 15, the lower sand box 17, and the second lower sand tank 31 are movably installed on the four guides 12, so that the upper sand box 15, the lower sand box are movably installed Movement of the sand box 17 and the second lower sand tank 31. Thereby, the extrusion can be stably performed. Therefore, the performance of mold release can be improved, and as a result, excellent molds and cast products can be obtained.

又，根據本實施形態之無箱造模機1，上砂箱15、下砂箱17及第2下砂槽31係可移動地安裝於4個導件，4個導件12係以包圍使用上砂箱15及下砂箱17形成自上下方向觀察將4個導件12各自之中心作為頂點之四角形之造模空間(上造模空間及下造模空間)之方式而配置，4個導件12於砂填充時、擠壓時及脫模時，於上下方向引導上砂箱15、下砂箱17及第2下砂槽31。如此，於砂填充時、擠壓時及脫模時，於上砂箱15、下砂箱17及第2下砂槽31之姿勢相同之情形時，可配置4個導件12。 Furthermore, according to the boxless molding machine 1 of this embodiment, the upper sand box 15, the lower sand box 17, and the second lower sand tank 31 are movably installed on four guides, and the four guides 12 are used to surround The upper flask 15 and the lower flask 17 form a quadrangular molding space (upper mold space and lower mold space) with the centers of the four guides 12 as the apex when viewed from the top and bottom, and the four guides The piece 12 guides the upper sand box 15, the lower sand box 17 and the second lower sand tank 31 in the up and down direction during sand filling, extrusion and demolding. In this way, four guides 12 can be arranged when the postures of the upper sand box 15, the lower sand box 17 and the second lower sand tank 31 are the same during sand filling, extrusion and demolding.

又，根據本實施形態之無箱造模機1，即使於第1連接口35與第2連接口38之高度不同之情形時，亦可藉由第1閉合板36蓋住第2連接口38，亦可藉由第2閉合板39蓋住第1連接口35。因此，可防止鑄模砂自砂槽流出。 Furthermore, according to the boxless molding machine 1 of this embodiment, even when the heights of the first connection port 35 and the second connection port 38 are different, the second connection port 38 can be covered by the first closing plate 36 It is also possible to cover the first connection port 35 by the second closing plate 39. Therefore, the casting sand can be prevented from flowing out of the sand tank.

再者，根據本實施形態之無箱造模機1，因填充於上造模空間及下造模空間之鑄模砂係CB設定為30%~42%，鑄模砂之壓縮強度設定為8N/cm2~15N/cm2之範圍之鑄模砂，故可獲得優異之鑄模及鑄物製品。 Furthermore, according to the boxless molding machine 1 of this embodiment, since the molding sand system CB filled in the upper and lower molding spaces is set to 30%~42%, the compressive strength of the molding sand is set to 8N/cm 2 ~ 15N/cm 2 of casting sand, so excellent casting molds and casting products can be obtained.

另，上述實施形態係顯示本發明之無箱造模機之一例者。本發明之無箱造模機未限定於實施形態之無箱造模機1者，於不變更各請求項記載之主旨之範圍內，可變化實施形態之無箱造模機1，亦可適用於其他用途。 In addition, the aforementioned embodiment shows an example of the boxless molding machine of the present invention. The boxless molding machine of the present invention is not limited to the boxless molding machine 1 of the embodiment, and the boxless molding machine 1 of the embodiment can be changed within the scope of not changing the subject of each claim. For other purposes.

例如，於上述實施形態中，雖說明上砂槽22固定於上框架10之例，但上砂槽22亦可構成為可移動。 For example, in the above embodiment, although the example in which the upper sand tank 22 is fixed to the upper frame 10 is described, the upper sand tank 22 may be configured to be movable.

又，於上述實施形態中，控制裝置50亦可使用第1檢測器51及第2檢測器52之檢測結果，而控制第1下砂槽30及第2下砂槽31之移動速度。同樣地，控制裝置50亦可使用第3測器53、第4檢測器54及第5檢測器55之檢測結果，控制上砂箱15、下砂箱17及下承框41之移動速度。例如，控制裝置50於檢測到已接近目標位置(檢測位於距特定位置特定距離內)之情形時，亦可將移動速度下降至特定值。藉由如此控制，可兼顧接觸時之影響緩和與上鑄模及下鑄模之造模時間之縮短。 Furthermore, in the above-mentioned embodiment, the control device 50 may also use the detection results of the first detector 51 and the second detector 52 to control the moving speed of the first lower sand tank 30 and the second lower sand tank 31. Similarly, the control device 50 can also use the detection results of the third detector 53, the fourth detector 54 and the fifth detector 55 to control the moving speed of the upper sand box 15, the lower sand box 17, and the lower frame 41. For example, when the control device 50 detects that it has approached the target position (detected within a specific distance from the specific position), it may also reduce the moving speed to a specific value. With such control, it is possible to take into account the relaxation of the influence of contact and the shortening of the molding time of the upper and lower molds.

1:無箱造模機 1: Boxless molding machine

10:上框架 10: Upper frame

11:下框架 11: Lower frame

12:導件 12: guide

14:支持框架 14: Support framework

15:上砂箱 15: Upper sand box

16:上砂箱缸體 16: Upper sand box cylinder

17:下砂箱 17: Lower sand box

22:上砂槽 22: Upper sand tank

22a:透過構件 22a: Through the component

23:滑動門 23: Sliding door

24:鑄模砂投入溜槽 24: Cast sand into the chute

25:上板 25: upper board

30:第1下砂槽 30: The first sand trough

30a:透過構件 30a: Through the component

30b:配管 30b: Piping

31:第2下砂槽 31: The second lower sand tank

32:下槽缸體 32: Lower tank cylinder

33:滑動門 33: Sliding door

34:漏斗 34: Funnel

35:第1連接口 35: 1st connection port

36:第1閉合板 36: 1st closing board

37:擠壓缸體 37: Extrusion cylinder

38:第2連接口 38: 2nd connection port

39:第2閉合板 39: 2nd closing board

40:下板 40: lower board

41:下承框 41: Lower frame

43:切換擋板 43: switch bezel

50:控制裝置 50: control device

X:方向 X: direction

Y:方向 Y: direction

Z:方向 Z: direction

Claims (14)

一種無箱造模機，其係將無砂箱之上鑄模及下鑄模進行造模者，且包含：上砂箱；下砂箱，其配置於上述上砂箱之下方，且可與上述上砂箱一同夾持模型板；上砂槽，其配置於上述上砂箱之上方，連接於壓縮空氣源，且其下端部開口，並於其內部儲存鑄模砂；上板，其安裝於上述上砂槽之下端部，形成有自上述上砂槽向上述上砂箱內連通之至少1個供給口；第1下砂槽，其連接於壓縮空氣源，於其內部儲存鑄模砂，且具有排出儲存之鑄模砂之第1連接口；第2下砂槽，其配置於上述下砂箱之下方，其上端部開口，具有可連接於上述第1下砂槽之第1連接口之第2連接口，並儲存自上述第1下砂槽供給且向上述下砂箱內供給之鑄模砂；下板，其安裝於上述第2下砂槽之上端部，形成自上述第2下砂槽向上述下砂箱內連通之至少1個供給口；驅動部，其使上述第2下砂槽於上下方向移動，以上述上板及上述下板進行擠壓；及調整驅動部，其使上述第1下砂槽於上下方向移動。 A boxless molding machine, which is used to mold the upper and lower molds of the sandbox, and includes: an upper sandbox; a lower sandbox, which is arranged below the upper sandbox and can be combined with the upper sandbox The sand box clamps the model plate together; the upper sand tank is arranged above the upper sand box, is connected to a compressed air source, and its lower end is open, and the mold sand is stored inside; the upper plate is installed on the upper The lower end of the sand tank is formed with at least one supply port communicating from the upper sand tank to the upper sand box; the first lower sand tank is connected to a compressed air source and stores mold sand in its interior, and has a discharge The first connection port of the stored mold sand; the second lower sand tank, which is arranged under the lower sand box, and its upper end is open, with the second connection that can be connected to the first connection port of the first lower sand tank Interface, and store the mold sand supplied from the first lower sand tank and supplied into the lower sand box; the lower plate, which is installed at the upper end of the second lower sand tank, is formed from the second lower sand tank to the above At least one supply port communicated in the lower sand box; a driving part that moves the second lower sand tank in the up-and-down direction and presses the upper plate and the lower plate; and the adjustment driving part makes the first The sand trough moves up and down. 如請求項1之無箱造模機，其中：藉由上述上板、上述上砂箱及上述模型板，形成造模上述上鑄模之上造模空間，且經由上述上板將儲存於上述上砂槽之鑄模砂填充至上述上造模空間，藉由安裝於由上述驅動部而移動至特定高度之上述第2下砂槽 之上述下板、上述下砂箱及上述模型板，形成造模上述下鑄模之下造模空間，藉由上述調整驅動部將上述第1下砂槽之上述第1連接口之高度調整為上述第2下砂槽之上述第2連接口之連接位置，而將儲存於上述第1下砂槽之鑄模砂供給至上述第2下砂槽，經由上述下板將儲存於上述第2下砂槽之鑄模砂填充至上述下造模空間，且於上述上造模空間及上述下造模空間填充有鑄模砂之狀態，藉由上述驅動部使上述第2下砂槽向上方移動，而以上述上板及上述下板進行擠壓。 Such as the boxless molding machine of claim 1, wherein: the upper plate, the upper sand box, and the model plate are used to form a molding space above the upper casting mold, and the upper plate is stored in the upper The mold sand of the sand tank is filled into the upper molding space, and is installed in the second lower sand tank that is moved to a specific height by the driving part The lower plate, the lower sand box, and the model plate form a molding space under the lower mold, and the height of the first connection port of the first lower sand tank is adjusted to the above by the adjustment drive part The connection position of the second connecting port of the second lower sand tank, and the mold sand stored in the first lower sand tank is supplied to the second lower sand tank, and it is stored in the second lower sand tank via the lower plate The mold sand is filled into the lower mold space, and the upper mold space and the lower mold space are filled with mold sand. The second lower sand tank is moved upward by the drive unit, and the The upper plate and the aforementioned lower plate are squeezed. 如請求項2之無箱造模機，其包含：下承框，且上述下造模空間係由上述下板、上述下砂箱、上述下承框及上述模型板形成。 For example, the boxless molding machine of claim 2, which includes: a lower supporting frame, and the lower molding space is formed by the lower plate, the lower sand box, the lower supporting frame and the model plate. 如請求項1至3中任一項之無箱造模機，其中：上述上砂槽及上述第1下砂槽係於內面設置有具有可流通壓縮空氣之複數個孔之透過構件。 The boxless molding machine according to any one of Claims 1 to 3, wherein: the upper sand tank and the first lower sand tank are provided with permeable members with a plurality of holes through which compressed air can flow on the inner surface. 如請求項1至3中任一項之無箱造模機，其中：上述上板之上述至少1個供給口之內面係以使上述上板之下表面之開口較上述上板之上表面之開口更窄之方式傾斜。 The boxless molding machine of any one of claims 1 to 3, wherein: the inner surface of the at least one supply port of the upper plate is such that the opening on the lower surface of the upper plate is larger than the upper surface of the upper plate The opening is narrower and inclined. 如請求項1至3中任一項之無箱造模機，其中：於上述上板之上表面設置有突起，該突起具有朝向上述上板之上述至少1個供給口傾斜之傾斜面。 The boxless molding machine according to any one of claims 1 to 3, wherein a protrusion is provided on the upper surface of the upper plate, and the protrusion has an inclined surface inclined toward the at least one supply port of the upper plate. 如請求項1至3中任一項之無箱造模機，其中：包含配置於上述上板之下表面、且連通於上述至少1個供給口之噴嘴。 The boxless molding machine according to any one of claims 1 to 3, which includes a nozzle arranged on the lower surface of the upper plate and connected to the at least one supply port. 如請求項1至3中任一項之無箱造模機，其中： 上述上板之上述至少1個之供給口係由複數個供給口構成，且於上述上板之下表面配置蓋住自上述複數個供給口中預先選擇之供給口之閉合板。 Such as the boxless molding machine of any one of claims 1 to 3, in which: The at least one supply port of the upper plate is constituted by a plurality of supply ports, and a closing plate covering the supply port selected in advance from the plurality of supply ports is arranged on the lower surface of the upper plate. 如請求項1至3中任一項之無箱造模機，其中：上述下板之上述至少1個供給口之內面以使上述下板之上表面之開口較上述下板之下表面之開口更窄之方式傾斜。 The boxless molding machine of any one of claims 1 to 3, wherein: the inner surface of the at least one supply port of the lower plate is such that the opening on the upper surface of the lower plate is larger than the lower surface of the lower plate The way the opening is narrower is inclined. 如請求項1至3中任一項之無箱造模機，其中：於上述下板之下表面設置具有朝向上述下板之上述至少1個供給口傾斜之傾斜面之突起。 The boxless molding machine according to any one of claims 1 to 3, wherein: a protrusion having an inclined surface inclined toward the at least one supply port of the lower plate is provided on the lower surface of the lower plate. 如請求項1至3中任一項之無箱造模機，其中：包含配置於上述下板之上表面，且連通於上述至少1個供給口之噴嘴。 The boxless molding machine according to any one of claims 1 to 3, which includes a nozzle arranged on the upper surface of the lower plate and connected to the at least one supply port. 如請求項1至3中任一項之無箱造模機，其中：上述下板之上述至少1個供給口係由複數個供給口構成，且於上述下板之上表面配置蓋住自上述複數個供給口中預先選擇之供給口之閉合板。 The boxless molding machine of any one of claims 1 to 3, wherein: the at least one supply port of the lower plate is composed of a plurality of supply ports, and the upper surface of the lower plate is configured to cover The closing plate of the pre-selected supply port among the plurality of supply ports. 如請求項1至3中任一項之無箱造模機，其中：上述上砂箱、上述下砂箱及上述第2下砂槽係可移動地安裝於4個導件。 Such as the boxless molding machine of any one of claims 1 to 3, wherein: the upper sand box, the lower sand box and the second lower sand tank are movably installed on four guides. 如請求項1至3中任一項之無箱造模機，其中：上述第1連接口及上述第2連接口係於沿著上下方向之連接面連接，於形成有上述第1連接口之上述第1下砂槽之前端部，設置於上下方向延伸之第1閉合板，且於形成有上述第2連接口之上述第2下砂槽之側部，設置於上下方向延伸之第2閉合板。 Such as the boxless molding machine of any one of claims 1 to 3, wherein: the first connection port and the second connection port are connected on the connection surface along the vertical direction, and the first connection port is formed The front end of the first sand trap is provided on the first closing plate extending in the vertical direction, and the side of the second sand trap where the second connection port is formed is provided in the second closing extending in the vertical direction board.
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* Cited by examiner, † Cited by third party
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CN1160612A (en) * 1995-12-15 1997-10-01 新东工业株式会社 Blow-squeeze molding machine
CN101862814A (en) * 2009-10-28 2010-10-20 新东工业株式会社 While process for making molds and slip flask molding device
CN102085566A (en) * 2010-01-15 2011-06-08 新东工业株式会社 Flaskless mold forming machine
WO2011111241A1 (en) * 2010-03-11 2011-09-15 新東工業株式会社 Casting mold molding machine
TW201233463A (en) * 2010-11-10 2012-08-16 Sintokogio Ltd Mounting assist device for mold-making apparatus, and mold-making apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1160612A (en) * 1995-12-15 1997-10-01 新东工业株式会社 Blow-squeeze molding machine
CN101862814A (en) * 2009-10-28 2010-10-20 新东工业株式会社 While process for making molds and slip flask molding device
CN102085566A (en) * 2010-01-15 2011-06-08 新东工业株式会社 Flaskless mold forming machine
WO2011111241A1 (en) * 2010-03-11 2011-09-15 新東工業株式会社 Casting mold molding machine
TW201233463A (en) * 2010-11-10 2012-08-16 Sintokogio Ltd Mounting assist device for mold-making apparatus, and mold-making apparatus

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