CN106903865B

CN106903865B - Automatic production equipment of hot water bags and production method of hot water bags

Info

Publication number: CN106903865B
Application number: CN201710182493.9A
Authority: CN
Inventors: 赵永安
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-03-24
Filing date: 2017-03-24
Publication date: 2023-05-09
Anticipated expiration: 2037-03-24
Also published as: CN106903865A

Abstract

The invention discloses automatic production equipment of a hot water bag and a production method of the hot water bag, wherein four corners of a machine seat of the equipment are vertically provided with guide posts, the upper ends of the guide posts are fixedly provided with an upper support frame, the center of the machine seat is provided with a die clamping oil cylinder, the upper end of a piston rod of the die clamping oil cylinder is provided with a main sliding block, two sets of translation guide rails and two sets of upper and lower dies are arranged between the upper support frame and the main sliding block, the upper side of the lower die is respectively provided with a die core, the die core comprises a core body and a frame, one side of the frame is provided with a die head, a threaded mandrel is arranged between the die head and the core body, and two ends of the threaded mandrel are respectively inserted into the die head and the core body; after the die is closed, the core body is positioned between the corresponding upper die and lower die and forms a thin-wall cavity in the shape of a hot water bag; and the lower sides of the first lower die holder and the second lower die holder are provided with a translation driving mechanism. The method adopts compression molding, blowing and demoulding for automatic production. The device and the method are specially used for automatic production of hot water bags, and have the advantages of convenient demoulding, high yield and long service life.

Description

Automatic production equipment of hot water bags and production method of hot water bags

Technical Field

The invention relates to a production device and a production method of rubber products, in particular to production equipment of a hot water bag and a production method of the hot water bag.

Background

In the Chinese patent database, the following are disclosed: one-step molding inflatable mold and method for processing hot water bag by using the same, and the application number of the application is: 201510717934.1; filing date: 2015-10-29; publication No.: CN105196519a; publication date: 2015-12-30, the die comprises an upper die shell, a lower die shell, a die head matched with the upper die shell and the lower die shell and an integrated die core; the bottoms of the upper mould shell and the lower mould shell are respectively provided with a groove in the shape of a hot water bag, and the grooves of the upper mould shell and the lower mould shell are combined to form a hot water bag-shaped through hole; the integrated mold core comprises a mold core main body and a frame structure, wherein the mold core main body is distributed vertically symmetrically and is fixedly connected with the mold core main body to form a whole; the die head comprises a die head main body and an air charging port. The defects are that: despite such mold designs, the equipment used for the mold is not disclosed; in addition, the hot-water bag is formed on the mold core, and the rubber material has good elasticity, so that the demolding is difficult, the production efficiency is low, and the degree of automation is not enough.

Disclosure of Invention

The invention aims to provide automatic production equipment and a production method for hot water bags, which enable the production efficiency of the hot water bags to be improved, the demoulding to be convenient and the yield to be high.

The purpose of the invention is realized in the following way: the automatic production equipment for the hot water bags comprises a machine base, wherein guide posts are vertically arranged at four corners of the machine base, an upper supporting frame is fixedly arranged at the upper ends of the guide posts, a mold closing oil cylinder is vertically arranged at the center of the machine base, a main sliding block is arranged at the upper end of a piston rod of the mold closing oil cylinder, a translation guide rail I is arranged at the upper side of the main sliding block, a first lower mold base capable of translating is arranged in the translation guide rail I, and a mold core lifting support I is correspondingly arranged outside the machine base and corresponds to the translation guide rail I; the first upper die holder is arranged corresponding to the first lower die holder and is arranged on the upper supporting frame in an up-and-down moving way through a guide rod and an auxiliary oil cylinder; a translation guide rail II is arranged on the upper side of the first upper die holder, a translatable second lower die holder is arranged in the translation guide rail II, a die core lifting bracket II is arranged outside the machine base and corresponds to the translation guide rail II, and a second upper die holder is arranged on the lower side of the upper support frame; the lower sides of the first upper die holder and the second upper die holder are respectively provided with an upper die, and the first lower die holder and the second lower die holder are respectively provided with a lower die; the upper side of the lower die is provided with a die core respectively, the die core comprises a die head and a frame, one side of the frame is provided with a die head, a threaded core rod is arranged between the die head and the die head, the surface of the threaded core rod is provided with threads, and two ends of the threaded core rod are respectively inserted into the die head and the core body; after the die is closed, the core body is positioned between the corresponding upper die and lower die and forms a thin-wall cavity in the shape of a hot water bag; and the lower sides of the first lower die holder and the second lower die holder are provided with a translation driving mechanism.

When the device works, a quantitative rubber sheet is placed between an upper die and a die core and between the die core and a lower die, a bag opening bracket is arranged on a threaded mandrel, the bag opening bracket is finally embedded into a bag opening of a hot water bag to form a part of the hot water bag, a die is pressed down through a die closing cylinder, and meanwhile, the hot water bag is heated, so that the rubber sheet is extruded and thermoplastic molded into the hot water bag, and the hot water bag is not a final product, but is formed at the front end and two sides of the hot water bag, and the tail part of the hot water bag is not closed; after the hot-water bag is formed, the upper die can be firstly removed from the die, the lower die, the die core and the die head are integrally moved out through the translation guide rail I and the translation guide rail II, the die core is jacked up through the die core lifting support I and the die core lifting support II, the die head can be taken down, the hot-water bag is removed from the die core, and the bottom of the hot-water bag is subjected to hot-melt welding and is cut and formed by other equipment. After the mold core is demolded, a new threaded core rod can be replaced to produce the next hot water bag. In the invention, the upper die and the lower die are assembled and disassembled in a lifting mode, the edges of the die cavities of the upper die and the lower die are not mutually worn, and the precision of the die can be ensured for a long time, so that the edge is ensured to have no overflow flash during the production of the hot water bag, the service life of the die is long, and the processing precision is high. The device is specially used for producing hot water bags, has convenient demoulding and high yield.

As a further improvement of the invention, the mold core is provided with an air inlet, the air inlet is arranged at the corresponding position of the bottom of the hot water bag, the inside of the mold core is provided with an air passage, and the outlet of the air passage extends to the corresponding positions of the two sides of the bag opening. By blowing compressed air from the air passage, the mold core can be rapidly demolded, and the production efficiency is further improved.

In order to avoid the blockage caused by the rubber material entering the air passage, the outlet of the air passage is provided with a one-way valve.

As a further improvement of the invention, the translation driving mechanism can be an oil cylinder, an air cylinder, a ball screw or a gear-rack transmission pair.

The mold core lifting support I and the mold core lifting support II comprise vertically arranged ejection oil cylinders, ejection plates are arranged at the upper ends of the ejection oil cylinders, ejection pins are arranged on the outer sides of the frames, and positioning grooves are formed in the ejection plates and correspond to the ejection pins. After the ejector pins fall into the positioning grooves, the mold core can be smoothly and upwards ejected, so that the lower mold is separated from the mold core, and the positioning grooves play a role in positioning, so that the position of the ejected mold core is accurate.

In order to ensure smooth die assembly and accurate positioning, the lower die is provided with a guide pin, and the upper die is provided with a pin hole corresponding to the guide pin. The guide pin and the pin hole can be mutually spliced, and the positioning is accurate.

The invention also discloses a production method for the hot water bag by using the equipment, which sequentially comprises the following steps:

1) Starting equipment, and opening the die closing oil cylinder;

2) Removing the first lower die mounting seat and the second lower die mounting seat together with the lower die and the die core arranged on the first lower die mounting seat and the second lower die mounting seat;

3) Jacking up the mold core through the mold core lifting support I and the mold core lifting support II;

4) Putting a quantitative lower side rubber sheet into a groove of a lower die, screwing a bag mouth bracket into a threaded core rod, connecting a die core, the threaded core rod and a die head, and placing a die core on the lower die by a falling die core lifting bracket I and a die core lifting bracket II;

5) A quantitative upper rubber sheet is placed on the upper side of the mold core;

6) The lower die is moved to enable the lower die to be opposite to the upper die through a translation driving mechanism; the mold closing oil cylinder drives the main sliding block to move upwards, and the auxiliary oil cylinder moves upwards simultaneously, so that the upper mold moves downwards and is closed; after the pressure is maintained for a period of time, the die closing oil cylinder and the auxiliary oil cylinder are opened to drive the lower die and the die core to fall down integrally, so that the upper die is demoulded;

7) The lower die and the die core are driven to integrally move out through a translation driving mechanism;

8) Jacking up the mold core through the mold core lifting support I and the mold core lifting support II and taking down the mold head;

9) Compressed air is blown into the air passage, and enters the hot water bag with the bottom opening from the two sides of the mouth part of the hot water bag to blow down the hot water bag with the bottom opening from the mold core, so that the mold core is demolded;

10 Using other equipment to heat-melt and weld the bottom of the hot water bag and cutting the bottom to form.

As a further improvement of the invention, the steps 4) to 10) are repeated by installing a new mold core, a thread core rod and a pocket support. Therefore, the demolding of the mold core and the production of the hot water bag are not interfered with each other, and the compression molding production can be performed while the demolding is performed, so that the working efficiency is improved.

The method needs to be combined with the equipment provided by the invention, and has the advantages of high production efficiency, long service life of the die and good precision.

Drawings

Fig. 1 is a schematic structural view of the production apparatus of the present invention after mold opening.

Fig. 2 is a schematic structural view of the production apparatus of the present invention after mold closing.

Fig. 3 is a schematic structural view of the first mold core lifting support and the auxiliary guide rail.

Fig. 4 is a left side view of fig. 3.

Fig. 5 is an exploded view of the mandrel, threaded mandrel, and die head.

Fig. 6 is a positional relationship correspondence diagram of the upper die and the lower die.

The die comprises a base 1, a die closing cylinder 2, a main sliding block 3, a translation cylinder 4, a die core lifting support 5, a translation guide rail 6, an upper die 7, a first upper die holder 8, a hydraulic motor 9, a second lower die holder 10, a second upper die holder 11, an upper support 12, an auxiliary cylinder 13, a guide rod 14, a translation guide rail 15, a guide post 16, a die core lifting support 17, a die core lifting support 18, an ejector plate 19, a lower die 20, a die core 21, an ejector pin 22, a threaded core rod 23, a core 24, an ejector cylinder 25, a frame 26, an air inlet 27, an air channel 28, a one-way valve 29, a guide pin 30, a pin hole 31, a die head 32 and a positioning groove 33.

Description of the embodiments

1-6, an automatic production device for hot water bags comprises a machine base 1, guide posts 16 are vertically arranged at four corners of the machine base 1, an upper support frame 12 is fixedly arranged at the upper ends of the guide posts 16, a mold clamping cylinder 2 is vertically arranged at the center of the machine base 1, a main sliding block 3 is arranged at the upper end of a piston rod of the mold clamping cylinder 2, a translation guide rail I6 is arranged on the upper side of the main sliding block 3, a first translatable lower die seat 17 is arranged in the translation guide rail I6, a die core lifting support I5 is arranged outside the machine base 1 and corresponds to the translation guide rail I6, and a die core 21 moving to a corresponding position can be pushed out of a lower die 20 upwards through the die core lifting support I5; the first upper die holder 8 is arranged corresponding to the first lower die holder 17, and the first upper die holder 8 is arranged on the upper supporting frame 12 in an up-and-down movable way through a guide rod 14 and an auxiliary oil cylinder 13; a second translation guide rail 15 is arranged on the upper side of the first upper die holder 8, a second lower die holder 10 capable of translating is arranged in the second translation guide rail 15, a second die core lifting bracket 18 is arranged outside the machine base 1 and corresponds to the second translation guide rail 15, and a second upper die holder 11 is arranged on the lower side of the upper support frame 12; the lower sides of the first upper die holder 8 and the second upper die holder 11 are respectively provided with an upper die 7, and the first lower die holder 17 and the second lower die holder 10 are respectively provided with a lower die 20; the upper side of the lower die 20 is respectively provided with a die core 21, the die core 21 comprises a die body 24 and a frame 26, one side of the frame 26 is provided with a die head 32, a threaded core rod 23 is arranged between the die head 32 and the die body 24, threads are arranged on the surface of the threaded core rod 23, and two ends of the threaded core rod 23 are respectively inserted into the die head 32 and the die body 24; after the die assembly, the core 24 is positioned between the corresponding upper die 7 and lower die 20 and forms a thin-wall cavity in the shape of a hot water bag; the lower sides of the first lower die holder 17 and the second lower die holder 10 are provided with a translation driving mechanism. In the embodiment, a translation cylinder 4 is arranged at the lower side of a first lower die holder 17, a hydraulic motor 9 is arranged at the lower side of a second lower die holder 10, and the hydraulic motor 9 drives the second lower die holder 10 to move in a translation mode through a screw nut. The translation driving mechanism can also be a cylinder, a gear and rack transmission pair. The lower die 20 is provided with a guide pin 30, and the upper die 7 is provided with a pin hole 31 corresponding to the guide pin 30.

The mold core 21 is provided with an air inlet 27, the air inlet 27 is arranged at the corresponding position of the bottom of the hot water bag, an air passage 28 is arranged in the core 24, and the outlet of the air passage 28 extends to the corresponding positions of the two sides of the bag mouth. The outlet position of the air duct 28 is provided with a one-way valve 29.

The first mold core lifting support 5 and the second mold core lifting support 18 have the same structure, taking the first mold core lifting support 5 as an example, the mold core lifting support comprises an upright ejector cylinder 25, an ejector plate 19 is arranged at the upper end of the ejector cylinder 25, ejector pins 22 are arranged on the outer side of the frame 26, and positioning grooves 33 are formed in the ejector plate 19 and correspond to the ejector pins 22.

The hot water bag is produced by using the equipment, which comprises the following steps in sequence:

1) Starting equipment, and opening the die closing oil cylinder 2;

2) Removing the first lower die 20 mounting seat and the second lower die 20 mounting seat together with the lower die 20 and the die core arranged on the first lower die 20 mounting seat and the second lower die 20 mounting seat;

3) Jacking up the mold core through the mold core lifting support I5 and the mold core lifting support II 18;

4) A fixed amount of lower side rubber sheet is placed in a groove of the lower die 20, a threaded core rod 23 is screwed into a bag mouth bracket, a die core, the threaded core rod 23 and a die head 32 are connected, and a die core is placed on the lower die 20 by a first falling die core lifting bracket 5 and a second falling die core lifting bracket 18;

5) A fixed amount of upper rubber sheet is placed on the upper side of the mold core 21;

6) The lower die 20 is moved to make the lower die 20 face the upper die 7 by a translation driving mechanism; the mold closing cylinder 2 drives the main sliding block 3 to ascend, and the auxiliary cylinder 13 simultaneously ascends to enable the upper mold 7 to descend and mold; after pressure maintaining for a period of time, the die closing oil cylinder 2 and the auxiliary oil cylinder 13 are opened to drive the lower die 20 and the die core 21 to fall integrally, so that the upper die 7 is demolded;

7) The lower die 20 and the die core 21 are driven to integrally move out through a translation driving mechanism;

8) The die core is jacked up and the die head 32 is taken down through the die core lifting support I5 and the die core lifting support II 18;

9) Compressed air is blown into the air passage 28, and enters from two sides of the mouth of the hot water bag to blow down the hot water bag with the bottom opening from the mold core 21, so that the mold core 21 is demolded;

11 The step 4) to 10) are repeated after the new mold core 21, the thread core rod 23 and the bag mouth support are replaced.

The invention places quantitative rubber sheet between upper die 7 and mould core, mould core and lower die 20, mount the port support on the threaded core rod 23, this port support inlays the port of the hot-water bag finally, become a part of the hot-water bag, press the die down through the die closing cylinder 2, heat at the same time, make the rubber sheet extruded and thermoplastic formed into the hot-water bag, this hot-water bag is not the final product, but the front end, both sides shaping of the hot-water bag, the afterbody is not closed; after the molding, the upper die 7 can be removed, the lower die 20 and the die core 21 are integrally moved out through the translation guide rail I6 and the translation guide rail II 15, the die core is jacked up through the die core lifting support I5 and the die core lifting support II 18, the die head 32 can be taken down, the hot water bag is removed from the die core 21, and the bottom of the hot water bag is subjected to hot-melt welding and is cut and molded by other equipment. After the mold core is demolded, a new threaded core rod 23 can be replaced to produce the next hot water bag, the device adopts two sets of molds to produce simultaneously, and more than one station can be arranged on each mold, so that the production efficiency of the hot water bag is improved. The upper die 7 and the lower die 20 are assembled and disassembled in a lifting mode, the edges of the die cavities of the upper die 7 and the lower die 20 are not worn mutually, the precision of the die can be ensured for a long time, and therefore, the edge of the hot water bag is ensured to have no overflow flash during production, the service life of the die is long, and the machining precision is high. The device is specially used for producing hot water bags, and the device can realize demoulding conveniently and has high yield by blowing and demoulding with compressed air.

The invention is not limited to the above embodiments, and based on the technical solution disclosed in the invention, a person skilled in the art may make some substitutions and modifications to some technical features thereof without creative effort according to the technical content disclosed, and all the substitutions and modifications are within the protection scope of the invention.

Claims

1. An automated production equipment of hot-water bottle, its characterized in that: the mold comprises a machine base, guide posts are vertically arranged at four corners of the machine base, an upper supporting frame is fixedly arranged at the upper ends of the guide posts, a mold closing oil cylinder is vertically arranged at the center of the machine base, a main sliding block is arranged at the upper end of a piston rod of the mold closing oil cylinder, a translation guide rail I is arranged at the upper side of the main sliding block, a first lower mold seat capable of translating is arranged in the translation guide rail I, and a mold core lifting support I is correspondingly arranged outside the machine base and corresponds to the translation guide rail I; the first upper die holder is arranged corresponding to the first lower die holder and is arranged on the upper supporting frame in an up-and-down moving way through a guide rod and an auxiliary oil cylinder; a translation guide rail II is arranged on the upper side of the first upper die holder, a translatable second lower die holder is arranged in the translation guide rail II, a die core lifting bracket II is arranged outside the machine base and corresponds to the translation guide rail II, and a second upper die holder is arranged on the lower side of the upper support frame; the lower sides of the first upper die holder and the second upper die holder are respectively provided with an upper die, and the first lower die holder and the second lower die holder are respectively provided with a lower die; the upper side of the lower die is provided with a die core respectively, the die core comprises a die head and a frame, one side of the frame is provided with a die head, a threaded core rod is arranged between the die head and the die head, the surface of the threaded core rod is provided with threads, and two ends of the threaded core rod are respectively inserted into the die head and the core body; after the die is closed, the core body is positioned between the corresponding upper die and lower die and forms a thin-wall cavity in the shape of a hot water bag; and the lower sides of the first lower die holder and the second lower die holder are provided with a translation driving mechanism.

2. The automated production equipment of a hot water bag according to claim 1, wherein: the hot water bag is characterized in that an air inlet is arranged on the mold core and arranged at the corresponding position of the bottom of the hot water bag, an air passage is arranged in the mold core, and the outlet of the air passage extends to the corresponding positions of the two sides of the bag opening.

3. An automated production facility of a hot water bag according to claim 2, wherein: the outlet of the air passage is provided with a one-way valve.

4. An automated production facility of a hot water bag according to any one of claims 1-3, wherein: the translation driving mechanism is an oil cylinder, an air cylinder, a ball screw or a gear-rack transmission pair.

5. An automated production facility of a hot water bag according to any one of claims 1-3, wherein: the mold core lifting support I and the mold core lifting support II comprise vertically arranged ejection oil cylinders, ejection plates are arranged at the upper ends of the ejection oil cylinders, ejection pins are arranged on the outer sides of the frames, and positioning grooves are formed in the ejection plates and correspond to the ejection pins.

6. An automated production facility of a hot water bag according to any one of claims 1-3, wherein: the lower die is provided with a guide pin, and the upper die is provided with a pin hole corresponding to the guide pin.

7. A method for producing hot water bags, characterized in that it is produced by means of the apparatus of claim 1, comprising the following steps in sequence:

1) Starting equipment, and opening the die closing oil cylinder;

8. The method for producing a hot water bag according to claim 7, wherein: and (4) replacing a new mold core, a threaded core rod and a bag port bracket, and repeating the steps 4) to 10).