TW201538294A - Manufacturing process of automatic EVA cold/hot molding machine - Google Patents

Abstract

A manufacturing process of an automatic EVA cold/hot molding machine includes the steps of: (A) providing a plurality of molds for respectively holding raw material to be molded, a material input/output unit, at least a hot molding machine, at least a cold molding machine, and a material carrying trolley; (B) placing raw material that has not been molded into the molds and placing the same onto the material input/output unit, and the material carrying trolley taking out the molds from the material input/output unit and placing the molds into the hot molding machine for hot molding; (C) using the material carrying trolley to take out the heated molds and moving and placing the same in the cold molding machine for cold molding; (D) using the material carrying trolley to take out the cooled molds from the cold molding machine and placing the same in the material input/output unit; and (E) taking out the molded raw material from the cooled molds and repeating steps (B) to (E) to achieve continuous production.

Description

EVA automatic cold forming mechanism

The invention relates to an EVA process, in particular to an EVA automatic cold forming mechanism.

EVA is a copolymer of vinyl acetate and ethylene. It has excellent heat-resistant potential, good water resistance and safe workability. It is also one of the materials used to make the midsole of shoes.

As shown in FIG. 1 , conventionally, an EVA material is shaped into a shoe mold process, which is pressed into a mold by a heat setting machine and heated and molded, and then cooled by a cold setting machine. Cooling and setting, but the loading and unloading mode of the mold between the thermoforming machine and the cold forming machine must be carried out by manpower one by one, which is not only inefficient, but also prone to danger, and when the plant scale is large and the production line is long At the same time, it will also cost a lot of manpower, which in turn will result in waste of costs.

Accordingly, it is an object of the present invention to provide an EVA automatic cold forming mechanism that saves manpower and increases production efficiency.

Thus, the EVA automatic cold forming mechanism of the present invention comprises the following steps:

Step (A): providing a plurality of molds capable of holding a material to be formed separately, an inlet and outlet unit capable of placing and removing the molds, and at least one thermoforming machine capable of heating the molds, at least one capable of cooling the mold A cold forming machine for a mold, and a transport trolley capable of reciprocating between the feed and discharge unit, the thermoforming machine, and the cold forming machine.

Step (B): accommodating the unformed material into a corresponding mold and placing it on the feeding and discharging unit, the transporting trolley takes out the molds from the feeding and discharging unit and places the molds on the thermoforming The machine is heated and formed.

Step (C): The transport trolley takes out the heated molds and moves them to the cold forming machine for cooling molding.

Step (D): The transport trolley takes the cooled molds from the cold forming machine and places them in the feed and discharge unit.

Step (E): taking out the corresponding formed material from the cooled molds.

The utility model has the advantages that the material feeding and discharging unit and the transportation trolley can facilitate the replacement of materials in a single position, and in addition to saving manpower, the production efficiency can be improved.

100‧‧‧material

10‧‧‧Mold

11‧‧‧Thermal forming machine

12‧‧‧Cold Forming Machine

L‧‧‧Reference direction

200‧‧‧ material

2‧‧‧Mold

21‧‧‧Deduction Department

3‧‧‧Incoming and discharging unit

31‧‧‧ ‧ frame

32‧‧‧ Carrier Board

4‧‧‧Thermal forming machine

41‧‧‧Hot board

42‧‧‧Hydraulic cylinder

5‧‧‧Cold Forming Machine

51‧‧‧ cold plate

52‧‧‧Hydraulic cylinder

6‧‧‧Delivery trolley

61‧‧‧Mezzanine

62‧‧‧claw

63‧‧‧Put

Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: FIG. 1 is a schematic diagram illustrating a conventional cold thermoforming machine; FIG. 2 is a flow chart illustrating the EVA of the present invention. a preferred embodiment of a cold forming mechanism; 3 is a schematic view showing the relative positional relationship of the preferred embodiment after assembly; FIG. 4 is a partial schematic view showing the clamping relationship between a jaw of the transport trolley and a mold; FIG. 5 is a schematic view. The transport trolley of the preferred embodiment is illustrated.

Figure 6 is a partial schematic view showing the state of an input and discharge unit of the preferred embodiment in a stacked position; Figure 7 is similar to Figure 4, showing the positional relationship of the feeding and discharging unit in a deployed position; A schematic diagram illustrating the state of a transport trolley of the preferred embodiment in a collapsed position; and FIG. 9 is similar to FIG. 6 illustrating the positional relationship of the transport trolley in an extended position.

As shown in FIG. 2, FIG. 3 and FIG. 4, the preferred embodiment of the EVA automatic cold forming mechanism of the present invention comprises the following steps:

Step (A): providing a plurality of molds 2, an inlet and outlet unit 3 capable of placing and removing the molds 2, at least one thermoforming machine 4 capable of heating the molds 2, and at least one capable of cooling the molds 2 The cold forming machine 5 and a transport cart 6 capable of reciprocating between the feed and discharge unit 3, the thermoforming machine 4, and the cold forming machine 5.

The molds 2 can respectively hold a material to be formed 200 and have a fastening portion 21, respectively.

The feeding and discharging unit 3 includes a frame body 31, and a plurality of parameters along the same The test direction L is disposed on the frame body 31, and can respectively be used for the carrier plates 32 placed on the molds 2. The carrier plates 32 can be disposed at a stacking position relative to the frame body 31 (as shown in FIG. 6) and Moving between the unfolded positions (as shown in FIG. 7), the carrier plates 32 are folded into the frame body 31 and spaced along the reference direction L, and can be placed in the transporting trolley 6 The molds 2 are placed and removed, and in the deployed position, the carrier plates 32 can extend outwardly perpendicular to the reference direction L and do not overlap each other along the reference direction L. In the preferred embodiment, the manner in which the molds 2 are replaced with the material 200 is personnel replacement, and the effect of facilitating replacement can be achieved by interlacing and non-overlapping in the reference direction L.

The thermoforming machine 4 includes a plurality of hot plates 41 spaced apart and movable in the reference direction L, and a hydraulic cylinder 42 disposed below the hot plates 41 and capable of lifting the hot plates 41 in sequence. .

The cold forming machine 5 includes a plurality of cold plates 51 spaced apart from each other and movable in the reference direction L, and a hydraulic cylinder 52 disposed under the cold plates 51 and capable of lifting the cold plates 51 in sequence. .

In the preferred embodiment, the number of the thermoforming machine 4 and the cold forming machine 5 are plural, and the thermoforming machines 4 and the cold forming machines 5 are paired and placed adjacent to each other, and Arranged along the direction of travel of the transport trolley 6.

As shown in FIG. 4 and FIG. 5, the transport trolley 6 includes a plurality of interlayers 61 which can be stacked on the molds 2 and spaced apart from each other and arranged side by side in the traveling direction of the transport trolley 6 and arranged side by side. The jaws 61 of the fastening portions 21 of the molds 2 and the clamping jaws 61 of the molds 2 should be held, and A plurality of push rods 63 respectively coupled to the jaws 62 and movable between an extended position (shown in Figure 8) and a collapsed position (shown in Figure 9). In the extended position, the push rods 63 are ejected and the molds 2 are moved away from the transport trolley 6. In the retracted position, the push rods 63 are engaged and can be respectively supported by the grippers The molds 2 are placed on the transport trolley 6. In the preferred embodiment, the transport trolley 6 achieves rapid access by the interlayers 61 disposed side by side and the jaws 62 and the push rods 63 that can be transferred between the interlayers 61. The effect of the material is that only the columns 61 of the transport trolley 6 can be arranged in a row, and the jaws 62 and the pushers 63 are fixedly disposed.

As shown in FIG. 2, FIG. 3 and FIG. 4, step (B): the unformed material 200 is placed in the corresponding mold 2 and placed on the feeding and discharging unit 3, and the transporting trolley 6 is The injecting and discharging unit 3 takes out the molds 2 and places the molds 2 on the hot plates 41 of the thermoforming machine 4, and then raises the corresponding material to be formed 200 by the jacking of the hydraulic cylinder 42. Pressed and combined with heat forming, in the preferred embodiment, the hot plate 41 of the thermoforming machine 4 is capable of providing a heat forming temperature between 100 ° C and 150 ° C.

Step (C): the transport trolley 6 takes out the molds 2 that have not been heated from the feeding and discharging unit 3, and then moves to the thermoforming machine 4 to take out the heated molds 2, and moves them to the cold forming. On the cold plates 51 of the machine 5, at this time, the upper and lower sides of the molds 2 can be respectively brought into contact with the cold plates 51 by the jacking of the hydraulic cylinders 52, thereby correspondingly being shaped. The material 200 is cooled and formed, and then the molds 2 that have not been heated are placed in the thermoforming machine 4. In the preferred embodiment, the cold plate of the cold forming machine 5 51 can provide a cooling forming temperature between 10 ° C and 30 ° C.

Step (D): the transport trolley 6 takes out the cooled molds 2 from the cold forming machine 5, and then removes the heated molds 2 from the thermoforming machine 4, and moves them to the cold forming machine. 5, cooling molding is performed, and then the cooled molds 2 are placed in the feeding and discharging unit 3.

Step (E): the corresponding molded material 200 is taken out from the cooled molds 2, and the material 200 to be formed is placed in the corresponding mold 2.

The procedures of the steps (C) to (E) are repeated to achieve uninterrupted automated production, wherein the transport trolley 6 corresponds to the time interval of the injection and discharge of the thermoforming machine 4, and the waiting molding material 200 is thermoformed. The required time, the loading and unloading trolley 6 corresponds to the time interval of the feeding and discharging of the cold forming machine 5, which is the time required for the waiting molding material 200 to be cold formed.

In the preferred embodiment, the transport trolley 6 can be alternately fed in sequence to achieve the time required for heating and cooling. Wherein, the heating time of the molds 2 on the thermoforming machine 4 is between 400 seconds and 500 seconds, and the cooling time of the molds 2 on the cold forming machine 5 is between 500 seconds and 600 seconds. The thermoforming machine 4 and the cold forming machines 5 are paired and placed adjacent to each other and arranged five times in the traveling direction of the transport trolley 6, and the transport trolley 6 only needs to be 80. Within one second, an infeed and out cycle must be completed, so that it can operate without interruption, thereby achieving the effect of reducing labor costs and increasing production speed. However, the number of times the array is set can also be adjusted according to the moving speed of the transport trolley 6, that is, if the speed of the transport trolley 6 is high, the thermoforming machines 4 and the cold forming machines 5 are arranged. Time array The number of columns can be more than five times.

In summary, the loading and unloading unit 3 and the transporting cart 6 can facilitate the operator to replace the material 200 correspondingly accommodated in the molds 2 at a single position, which not only saves manpower but also improves production. The efficiency of the invention is indeed achieved by the object of the present invention.

The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the simple equivalent changes and modifications made by the patent application scope and patent specification content of the present invention, All remain within the scope of the invention patent.

200‧‧‧ material

2‧‧‧Mold

3‧‧‧Incoming and discharging unit

4‧‧‧Thermal forming machine

5‧‧‧Cold Forming Machine

6‧‧‧Delivery trolley

Claims (10)

An EVA automatic cold forming mechanism comprises the following steps: Step (A): providing a plurality of molds capable of respectively holding a material to be formed, an inlet and outlet unit capable of placing and removing the molds, and at least one capable of heating the mold a thermoforming machine for a mold, at least one cold forming machine capable of cooling the molds, and a transport trolley capable of reciprocating between the feed unit, the thermoforming machine, and the cold forming machine; step (B) ): the unformed material is placed in the corresponding mold and placed on the feeding and discharging unit, the transportation trolley takes out the molds from the feeding and discharging unit and places the molds on the thermoforming machine for heating Forming; step (C): the transport trolley takes out the heated molds and moves them to the cold forming machine for cooling forming; step (D): the transport trolley is taken out from the cold forming machine and cooled The molds are placed in the feed and discharge unit; and the step (E): the corresponding molded materials are taken out from the cooled molds. The EVA automatic cold forming mechanism according to claim 1, wherein the transport trolley of the step (C) first takes out the molds that have not been heated from the feeding and discharging unit before taking out the heated molds. After the heated molds are taken out, the molds that have not been heated are placed in the thermoforming machine. The EVA automatic cold forming mechanism according to claim 2, wherein the transport trolley of step (D) takes the cooled mold from the cold forming machine Then, the heated molds are taken out in the thermoforming machine, and placed in the cold forming machine for cooling molding, and then the cooled molds are placed in the feeding and discharging unit. The EVA automatic cold forming mechanism according to claim 1, wherein the transport trolley includes a plurality of interlayers capable of stacking the molds and spaced apart from each other, the interlayers being paired along a traveling direction of the transport trolley and Arranging side by side, the feeding and discharging unit comprises a frame body, and a plurality of carrier plates spaced apart from each other along a reference direction and respectively capable of being placed on the molds, the carrier plates being stackable relative to the frame body Moving between the position and a deployed position, the carrier plates are folded in the frame and spaced along the reference direction, and the loading trolley can be placed and removed. When the position is unfolded, the carrier plates can extend outwardly perpendicular to the reference direction, and are staggered and do not overlap each other along the reference direction, so as to facilitate material replacement. The EVA automatic cold forming mechanism according to claim 1, wherein the number of the thermoforming machine and the cold forming machine are plural, and the thermoforming machines and the cold forming machines are paired and adjacent to each other. Arranged and arranged along the traveling direction of the transport trolley, the transport trolley can be staggered in sequence to achieve the time required for heating and cooling in steps (C) to (E). The EVA automatic cold forming mechanism according to claim 1, wherein the molds respectively have a fastening portion, and the transportation trolley includes a plurality of clamping jaws capable of clamping the fastening portions of the molds, and the plurality of jaws respectively a push rod that is connected to the jaws and movable between an extended position and a collapsed position, In the extended position, the pushers are ejected and the molds are moved away from the transport trolley. In the retracted position, the pushers are collapsed and the molds can be placed by the jaws The material is on the trolley. The EVA automatic cold forming mechanism according to claim 1, wherein the thermoforming machine comprises a plurality of hot plates spaced apart and movable in a reference direction, and a thermal plate disposed below the hot plates and sequentially Lifting the hydraulic cylinders of the hot plates, the step (B) further comprises placing the molds on the hot plates, and pressing and pressing the corresponding materials to be formed by the lifting of the hydraulic cylinders . The EVA automatic cold forming mechanism as claimed in claim 7, wherein the hot plate of the thermoforming machine can provide a heating forming temperature between 100 ° C and 150 ° C. The EVA automatic cold forming mechanism according to claim 1, wherein the cold forming machine comprises a plurality of cold plates spaced apart and movable in a reference direction, and a cold plate disposed under the cold plates and sequentially Lifting the hydraulic cylinders of the cold plates, the step (C) further comprises placing the molds on the cold plates, and the upper and lower sides of the molds are respectively capable of being respectively raised by the jacking of the hydraulic cylinders The cold plates are in contact, whereby the corresponding material to be formed is cooled and formed. The EVA automatic cold forming mechanism of claim 9, wherein the cold plate of the cold forming machine can provide a cooling forming temperature between 10 ° C and 30 ° C.