CN108422600B

CN108422600B - Die exchange method and system thereof

Info

Publication number: CN108422600B
Application number: CN201710078728.XA
Authority: CN
Inventors: 陈法胜
Original assignee: King Steel Machinery Co Ltd
Current assignee: King Steel Machinery Co Ltd
Priority date: 2017-02-14
Filing date: 2017-02-14
Publication date: 2021-06-11
Anticipated expiration: 2037-02-14
Also published as: CN108422600A

Abstract

The invention provides a mould exchanging method and a system thereof, wherein the mould exchanging system comprises a mould clamping mechanism, a mould placing space, a preheating mechanism, a heating part and a transferring mechanism, the mould exchanging method is to receive the mould which is exchanged and moved out and is not used in a preheating space, and the heat energy is directly or indirectly transferred through conduction or radiation and the like so that the temperature of the mould is kept to be higher than the room temperature.

Description

Die exchange method and system thereof

Technical Field

The present invention relates to polymer processing technology, and more particularly, to a mold exchanging method and system.

Background

In the polymer molding technology using a mold to mold, in order to improve the molding efficiency, as disclosed in the prior art of taiwan patent No. M423038, the mold after molding and the mold to be molded are exchanged to effectively utilize the mechanical equipment, such as the continuous use of the vulcanizer or the mold clamping mechanism, to avoid idle operation, and to allow the operator to perform manual operation in a sufficient space, such as cleaning the pre-filled blank after the molded product is taken out, so that the molding can be performed in a wide operation space after the mold is removed from the narrow vulcanizer or the mold clamping mechanism.

However, when the polymer material is molded in the mold, the heat energy is usually transferred to the interior of the mold through the heating mechanism, so that the polymer material can reach the reaction temperature in the interior of the mold and react with the reaction temperature, and the molding process of the mold is performed, however, the prior art discloses that only the continuous utilization of mechanical equipment such as a clamping mechanism or a vulcanizing machine is focused, the reduction of the temperature of the mold after the mold is removed and separated from the heating mechanism is not considered, so that the heat energy is excessively dissipated, and the subsequent molding process is performed again, which requires a long time for heating the mold.

Disclosure of Invention

The present invention provides a mold exchanging method and system, which can make the mold still receive proper heat energy supply when the mold is exchanged and removed and is not used, so as to maintain or increase the temperature of the mold, thereby shortening the time for heating the mold when the mold is exchanged and used again, and remarkably improving the overall efficiency of polymer molding.

In order to achieve the purpose, the invention adopts the following technical scheme:

the main technical characteristic of the mold exchange method provided by the invention is that the mold which is removed and is not used is received in a preheating space, and the heat energy is directly or indirectly transferred through conduction or radiation and the like, so that the temperature of the mold is kept to be higher than the room temperature.

The preheating space can be an open space or a closed space, so as to meet the requirement of different operation temperatures of the die during the implementation of the industry and achieve the economical efficiency.

In addition, the preheating space can be formed by the tower inner space of an independently arranged heating tower, and can also be directly arranged in a die clamping mechanism for performing die opening and closing operation on the die, so that the effective utilization of the space and equipment is realized.

In addition, in order to make the method easy to implement and achieve the purpose, the invention also provides a mold exchanging system, which comprises a mold clamping mechanism, a preheating mechanism and a transferring mechanism. The mold clamping mechanism is used for performing mold opening and closing operation on a mold, and structurally comprises a first end piece and a second end piece which can be close to or away from each other in an opposite direction; a mold space between the first end piece and the second end piece for accommodating a mold. The preheating mechanism is provided with a preheating space for accommodating the die and a heating part for providing heat energy for the die positioned in the preheating space. The transfer mechanism is provided with a transfer end for taking and placing the mold, and can move between the mold placing space and the preheating space in at least two different dimensions.

Therefore, the transfer mechanism can move the mold to enable the mold to move between the mold placing space and the preheating space, so that the used mold in the mold placing space and the unused mold in the preheating space can be exchanged.

In order to transfer the heat energy to the unused mold in the preheating space properly, the heating part includes a first heating plate and a second heating plate which are parallel to each other and spaced apart from each other, and the preheating space is interposed between the first heating plate and the second heating plate so that the unused mold is interposed therebetween to obtain heating.

Meanwhile, in order to improve the heating effect, the second heating plate can make relative displacement towards or away from each other relative to the first heating plate, so that an unused mold can be clamped between the first heating plate and the second heating plate, and the heat energy transfer is accelerated through direct contact.

In addition, in order to facilitate the transfer of the molds, the mold exchanging system further comprises a mold ejecting mechanism disposed in the second end member for ejecting the molds adjacent to the second end member to separate and form the molds.

The mold ejecting mechanism is provided with at least one ejecting piece which is arranged in the second end piece in a sliding way and can move between an immersing position where the ejecting piece is immersed in a bearing end face of the second end piece and an extending position where the ejecting piece extends out of the bearing end face, and when the ejecting piece is positioned at the extending position, the mold is pushed away from the bearing end face, so that a space is formed between the mold and the bearing end face.

The mold ejecting mechanism further comprises an ejecting power piece for driving the ejecting piece to move between the sinking position and the extending position.

Wherein, the transferring end can extend into the space to carry the mold separated from the second end piece and move the carried mold out of the mold placing space.

The invention has the beneficial effects that: the invention can greatly shorten the time for heating the die in the die clamping mechanism by preheating the die in the preheating space, thereby effectively solving the defects of the prior art and improving the overall efficiency.

Drawings

Fig. 1 is a perspective view of a preferred embodiment of the present invention.

FIG. 2 is a largely exploded view of a preferred embodiment of the present invention.

Fig. 3 is a perspective assembly view of a top mold mechanism according to a preferred embodiment of the present invention.

Fig. 4 is an exploded perspective view of a top mold mechanism according to a preferred embodiment of the present invention.

FIG. 5 is a schematic diagram of the operation of the top mold mechanism according to a preferred embodiment of the present invention.

FIG. 6 is an exploded view of the preheating mechanism according to a preferred embodiment of the present invention.

FIG. 7 is a schematic diagram of a variation of the preheating space according to a preferred embodiment of the present invention.

Fig. 8 is an exploded perspective view of a transfer mechanism according to a preferred embodiment of the present invention.

Fig. 9 is a schematic diagram of the movement of the transfer mechanism along the x-axis according to a preferred embodiment of the invention.

Fig. 10 is a schematic diagram of the movement of the transfer mechanism along the y-axis according to a preferred embodiment of the invention.

Fig. 11 is a schematic view of the movement of the transfer mechanism along the z-axis according to a preferred embodiment of the invention.

Fig. 12 to 17 are schematic views illustrating die exchange according to a preferred embodiment of the present invention.

Reference numerals: 10: a die exchange system; 20: a mold clamping mechanism; 21: a base; 22: a guide post; 23: a top seat; 24: a first end piece; 241: a load bearing end face; 25: a second end piece; 26: placing a mold space; 30: a mold ejecting mechanism; 31: a slide bar; 32: a fluid pressure cylinder; 33: a top piece; 331: a guide plate; 332: a guide groove; 333: a top block; 40: a preheating mechanism; 41: preheating a space; 42: a heating section; 421: a first heating plate; 422: a second heating plate; 50: a transfer mechanism; 51: a guide part; 52: a transfer end; 53: a power section; 61: for use in a mold.

Detailed Description

First, referring to fig. 1 and fig. 2, a mold exchanging system 10 according to a preferred embodiment of the present invention mainly includes a mold clamping mechanism 20, two top mold mechanisms 30, two preheating mechanisms 40, and a transferring mechanism 50.

The mold clamping mechanism 20 is used for performing mold opening and closing operations on a mold, and includes a base 21, four guide posts 22 fixed to the base 21 at bottom ends thereof in parallel, a top seat 23 bridging the top ends of the guide posts 22, a first end piece 24 and a second end piece 25 respectively in plate shape and arranged between the guide posts 22 in parallel, and a mold placing space 26 between the first end piece 24 and the second end piece 25 for accommodating the mold 61 therein, wherein the mold 61 located in the mold placing space 26 is clamped and opened by relative displacement of the first end piece 24 and the second end piece 25 toward or away from each other.

Each of the top mold mechanisms 30 is configured to support the molds 61 attached to the second end member 25 to be separated from each other and form a space, so that the number of each of the top mold mechanisms 30 varies according to the number of the molds 61, but for convenience of explanation, only a single top mold mechanism is illustrated in fig. 3 to 5, specifically, the top mold mechanism 30 has two slide bars 31 slidably disposed in the second end member 25 in parallel with each other, two fluid pressure cylinders 32 are respectively fixed to one side of the second end member 25 and have output shafts coaxially connected to the slide bars 31 to drive the slide bars 31 to perform reciprocating displacement along their own axes, and two pairs of top members 33 are respectively disposed on the slide bars 31 and are capable of reciprocating displacement between a retracted position and an extended position according to the extension and retraction of the slide bars 31;

further, each of the top members 33 has a guide plate 331, located inside the second end member 24, a side plate end is fixed on each sliding rod 31, a guide groove 332 is concavely arranged in the guide plate 331, a top block 333 is arranged in the second end piece 25 in a sliding way, and is slidably connected with the bottom end of the guiding groove 332 and fixedly connected with the bottom end of the die 61 by the top end, thereby, when each of the top members 33 is in the retracted position, each of the top blocks 333 is retracted into the second end member 25, and by engagement between the top blocks 333 and the guide grooves 332, for securing the supply mold 61 in place against the load-bearing end face 251 of the second end piece 25, when the supporting member is located at the extended position, each of the top blocks 333 is pushed by the corresponding guide plate 331 to extend out of the supporting end surface 251, so that the connected supply mold 61 is pushed away from the bearing end face 251 with a proper spacing.

As shown in fig. 6 and 7, the preheating mechanism 40 is located below the base 21, and has two preheating spaces 41 and two heating portions 42 for providing heat energy to the preheating spaces 41, wherein each heating portion 42 has a first heating plate 421 attached and fixed to the lower end surface of the base 21, and a second heating plate 422 is located below the first heating plate 421 and can move relatively to the position of the first heating plate 421 to move toward or away from each other, so that each preheating space 41 is located between each first heating plate 421 and each second heating plate 422. The driving technique required for the displacement of the second heating plate 422 is a common technique known to those skilled in the art, and is not redundant here.

As shown in fig. 8 to 11, the transfer mechanism 50 includes a guiding portion 51, a plate-shaped transfer end 52 and a power portion 53, wherein the guiding portion 51 provides three-dimensional movement guidance of the x-axis, the y-axis and the z-axis through known guiding techniques such as a slide rail, a slider, a guide post and a guide ring, and the moving end 52 moves in three-dimensional directions of the x-axis, the y-axis and the z-axis by the guidance of the guiding portion 51 and the power provided by the power portion 53.

By means of the above components, the mold exchanging system 10 can be used to exchange the mold 61 in the mold placing space 26 with the unused mold 62 in the preheating space 41, and the specific exchange is shown in fig. 12 to 17:

in a state (fig. 12 a) that the mold clamping mechanism 20 opens the molds, the corresponding ejector mechanism 30 supports the spare mold 61 to be exchanged upward (fig. 12 b) to form a space, the transfer end 52 of the transfer mechanism 50 moves along the z-axis to be located on the same horizontal plane as the space, the transfer end 52 moves along the y-axis to extend into the space and between the spare mold 61 and the carrying end face 251 (fig. 13 c), and then the transfer end 52 moves upward along the z-axis to replace the carrying end face 251 with the transfer end 52 to carry the spare mold 61, and moves continuously until each top block 333 completely separates from the second end piece 25 (fig. 13 d), and then the transfer end 52 and the carried spare mold 61 move outward along the y-axis (fig. 14 e).

To this end, the transfer mechanism 50 may transfer the removed mold 61 to the preheating space 41, or as shown in fig. 14 f to fig. 16 i, first, laterally move the mold along the x axis to an intermediate position with sufficient space, so that an operator can perform subsequent operations such as removing a finished product, cleaning the mold, and after the processing is completed, then, as shown in fig. 16 j to fig. 17 k, transfer the mold from the intermediate position to the preheating space 41 through the transfer mechanism 50, place the removed mold 61 on the corresponding second heating plate 422, and then move the second heating plate 422 toward the first heating plate 421, so that the supported mold 61 is sandwiched therebetween to receive heating.

At the same time, the transfer mechanism 50 uses the transfer end 52 to carry the heated unused mold 62 located in another preheating space 41, and moves it out of the preheating space 41 and then transfers it to the corresponding mold placing space 26 for exchanging with the removed used mold 61.

The mold is preheated in the preheating space, so that the time for heating the mold in the mold clamping mechanism can be greatly shortened, the defects of the prior art can be effectively solved, and the overall efficiency is improved.

Claims

1. A mold exchange system, comprising:

the mould clamping mechanism is provided with a first end piece and a second end piece which can be close to each other or away from each other oppositely; a mold space between the first end piece and the second end piece for accommodating a mold;

a preheating mechanism having a preheating space for accommodating the mold; a heating part for providing heat energy to the mold in the preheating space;

a top die mechanism arranged in the second end piece and used for supporting a die adjacent to the second end piece so as to separate the die and form a space;

the top die mechanism is further provided with at least one sliding rod which is arranged in the second end piece in a sliding manner; the jacking piece is arranged on the sliding rod; and the ejection power part is used for driving the sliding rod to perform telescopic reciprocating displacement along the self shaft and move between an immersion position which is immersed in a bearing end face of the second end part and an extension position which extends out of the bearing end face along with the extension of the sliding rod, and when the ejection part is positioned at the extension position, the mold is pushed away from the bearing end face, so that a space is formed between the mold and the bearing end face.

2. The mold exchange system of claim 1, wherein the top member has a guide plate inside the second end member and secured to the slide bar by a side plate end, a guide slot recessed in the guide plate, a top block slidably disposed in the second end member and slidably engaged at a bottom end thereof in the guide slot and secured at a top end thereof to a bottom end of a mold.