EVA foaming forming device capable of adjusting mold lifting position

Abstract

An EVA foaming molding device with adjustable mold lifting position includes a frame, a first support frame, a second support frame, a first translation mechanism, a second translation mechanism, a mold closing heating mechanism, a first lifting mechanism, and a second lifting mechanism. The frame includes a molding station and a cooling station spaced vertically apart. The first and second support frames are vertically movable and positioned opposite each other on both sides of the frame to support the mold. The first lifting mechanism connects to and drives the first support frame to move vertically, and includes a first lifting motor mounted on the frame to drive the first support frame to move vertically and a first transmission component connected between the first lifting motor and the first support frame. The second lifting mechanism connects to and drives the second support frame to move vertically. By using a motor in conjunction with the transmission component, the first support frame can be placed at any position between the molding station and the cooling station, thus reducing the physical burden on workers while enabling the placement and removal of the mold.

Description

Technical Field

[0001] This utility model belongs to the field of shoe sole foaming technology, specifically relating to an EVA foaming molding device with adjustable mold lifting position. Background Technology

[0002] Traditional midsole molding uses a foam sole molding machine. The process involves placing the basic shoe midsole (unembossed midsole material and different blocks) into a mold, then manually pushing the mold into the heating zone of the foam sole molding machine. The machine heats and shapes the mold, then manually removes it and pushes it into the cooling zone to solidify the midsole. After molding, the mold is pulled out of the machine again, and this process is repeated. A single foam sole molding machine has approximately four or six or more heating and cooling zones, requiring at least two people to push and pull the molds in and out. This method results in low production efficiency and high labor costs.

[0003] To address the aforementioned issues, patent announcement number CN219360079U discloses a mold moving device and a secondary foaming molding machine, comprising a translation mechanism, a lifting mechanism, and a bracket. The bracket includes clamping plates and screws, with two clamping plates and two screws respectively passing through the front and rear ends of the two clamping plates. The two clamping plates are parallel to each other on both sides of the mold, and the clamping plates can be locked to both sides of the mold by means of nuts engaging with the screws. The translation mechanism includes slide rails, a movable frame, and a driving component. Two slide rails are provided and arranged parallel and spaced apart. The movable frame is movably mounted on the two slide rails. The bracket is mounted on the movable frame via the two screws. The driving component is used to drive the movable frame to move laterally along the slide rails. The lifting mechanism, located below the translation mechanism, includes a lifting cylinder assembly and a lifting plate. The lifting cylinder assembly drives the translation mechanism up and down, thereby moving the mold up and down, thus replacing manual operation of mold entry and exit, resulting in higher efficiency. However, using the lifting cylinder assembly to drive the translation mechanism up and down means the translation mechanism can only stop at the entry and exit positions. This places high demands on the equipment's footprint, and workers can only insert or remove the mold from the exit position. For taller workers, this requires prolonged bending to insert or remove the mold, increasing their workload and requiring further improvement. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide an EVA foaming molding device with an adjustable mold lifting position.

[0005] The present invention adopts the following technical solution:

[0006] An EVA foaming molding device with adjustable mold lifting position includes a frame, a first support frame, a second support frame, a first translation mechanism, a second translation mechanism, a mold closing and heating mechanism, a first lifting mechanism, and a second lifting mechanism. The frame includes a molding station and a cooling station spaced vertically apart. The first and second support frames are vertically movable and oppositely arranged on both sides of the frame to support the mold. The mold closing and heating mechanism is vertically movable and located on the frame above the molding station. The first translation mechanism is mounted on the first support frame and transports the mold to the molding station. The mold is either removed from the cooling station to the first support frame at the workstation; the second translation mechanism is set on the second support frame to remove the mold from the forming station to the second support frame or to transport the mold to the cooling station; the first lifting mechanism is set on one side of the frame, connecting and driving the first support frame to move up and down, including a first lifting motor set on the frame to drive the first support frame to move up and down and a first transmission assembly connected between the first lifting motor and the first support frame; the second lifting mechanism is set on the other side of the frame, connecting and driving the second support frame to move up and down.

[0007] Furthermore, the first transmission assembly includes a first rotating rod rotatably mounted on the frame, a first synchronizing rod mounted on the frame opposite to the first rotating rod, two first driving sprockets opposite to each other on both sides of the first rotating rod, two first synchronizing sprockets opposite to each other on both sides of the first synchronizing rod, and two first transmission chains respectively connected between the first driving sprocket and the first synchronizing sprocket on the same side. The first support frame is connected to the opposite first transmission chains on both sides.

[0008] Furthermore, the first lifting mechanism also includes a first guide member, which includes two first guide columns disposed opposite to each other on both sides of the first support frame and two first guide blocks respectively disposed on the two first guide columns and connected to the first support frame.

[0009] Furthermore, the first transmission chain is connected to the first support frame via a first connector. The first connector includes a first connecting seat disposed on the first support frame and in contact with one side of the first transmission chain, a first connecting plate opposite to the first connecting seat and in contact with the other side of the first transmission chain, and a first connecting bolt connecting the first connecting seat and the first connecting plate.

[0010] Furthermore, the first transmission assembly includes two lead screw and nut pairs disposed opposite to each other on both sides of the first support frame, and two first lifting motors are provided, with each first lifting motor connected to the opposite lead screw and nut pair.

[0011] Furthermore, the structure of the second lifting mechanism is the same as that of the first lifting mechanism.

[0012] Furthermore, the forming station includes a first support plate disposed on the frame and a first heating plate disposed at the bottom of the first support plate.

[0013] Furthermore, the mold closing heating mechanism includes a second heating plate that can move up and down above the first support plate and an oil cylinder that is mounted on the frame and connected to drive the first heating plate to move up and down.

[0014] Furthermore, the cooling station includes a second support plate disposed on the frame below the first support plate and a cooling plate disposed at the bottom of the second support plate.

[0015] As can be seen from the above description of the present invention, compared with the prior art, the beneficial effects of the present invention are as follows: By defining the structure of the lifting mechanism and using a motor in conjunction with a transmission component, the first support frame can be placed at any position between the molding station and the cooling station to accommodate different heights of workers, thereby reducing the physical burden on workers and realizing the placement and removal of molds; at the same time, the method of using a motor in conjunction with a transmission component can reduce the space occupied by the lifting mechanism, thereby reducing the floor space of the equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0018] Figure 3 This is a schematic diagram of the structure of the present invention. Figure 3 ;

[0019] In the diagram, 1-frame, 2-first support frame, 3-second support frame, 4-first translation mechanism, 5-second translation mechanism, 6-mold closing heating mechanism, 7-first lifting mechanism, 8-second lifting mechanism, 11-forming station, 111-first support plate, 112-first heating plate, 12-cooling station, 121-second support plate, 122-cooling plate, 61-second heating plate, 62-oil cylinder, 71-first lifting motor, 72-first transmission assembly, 721-first rotating rod, 722-first synchronizing rod, 723-first drive sprocket, 724-first synchronizing sprocket, 725-first transmission chain, 73-first guide component, 731-first guide column, 732-first guide block, 74-first connector, 741-first connecting seat, 742-first connecting plate, 743-first connecting bolt. Detailed Implementation

[0020] The present invention will be further described below through specific embodiments.

[0021] Reference Figures 1 to 3 As shown, an EVA foaming molding device with adjustable mold lifting position includes a frame 1, a first support frame 2, a second support frame 3, a first translation mechanism 45, a second translation mechanism, a mold closing heating mechanism 6, a first lifting mechanism 7, and a second lifting mechanism 8.

[0022] The frame 1 includes a molding station 11 and a cooling station 12 arranged at intervals. During foaming, the mold first enters the molding station 11 for heating and then enters the cooling station 12 for cooling to complete the foaming process. Specifically, the molding station 11 includes a first support plate 111 on the frame 1 and a first heating plate 112 at the bottom of the first support plate 111. The cooling station 12 includes a second support plate 121 on the frame 1 located below the first support plate 111 and a cooling plate 122 at the bottom of the second support plate 121.

[0023] The first support frame 2 and the second support frame 3 are vertically movable and are arranged opposite each other on both sides of the frame 1 to support the mold.

[0024] The mold closing heating mechanism 6 is movable up and down on the frame 1, located above the molding station 11. It includes a second heating plate 61 that is movable up and down above the first support plate 111 and an oil cylinder 62 that is mounted on the frame 1 and drives the second heating plate 61 to move up and down. During foaming, the mold is heated by the upper and lower second heating plate 61 and the first heating plate 112 to perform foaming.

[0025] The first translation mechanism 4 is mounted on the first support frame 2 to transport the mold to the forming station 11 or to remove the mold from the cooling station 12 to the first support frame 2.

[0026] The second translation mechanism 5 is mounted on the second support frame 3. It removes the mold from the molding station 11 to the second support frame 3 or transports the mold to the cooling station 12. Specifically, the first translation mechanism 4 and the second translation mechanism 5 are commonly used mechanisms in the field of mold clamping and moving. They can be a mold moving device and a translation mechanism in foaming molding as described in the background art with authorization announcement number CN219360079U. Other mechanisms that can achieve the above effects can also be used. The specific structure and working principle will not be further described here.

[0027] A first lifting mechanism 7, disposed on one side of the frame 1, connects to and drives the first support frame 2 to move up and down. It includes a first lifting motor 71 mounted on the frame 1 to drive the first support frame 2 to move up and down, a first transmission assembly 72 connecting the first lifting motor 71 and the first support frame 2, and a first guide member 73 disposed between the first transmission assembly 72 and the first support frame 2. Specifically, in the first embodiment of this application, the first transmission assembly 72 includes a first rotating rod 721 rotatably mounted on the frame 1, a first synchronizing rod 722 mounted on the frame 1 opposite to the first rotating rod 721, two first drive sprockets 723 oppositely mounted on both sides of the first rotating rod 721, and a first guide member 73 oppositely mounted on the first synchronizing rod 722. The first support frame 2 has two first synchronous sprockets 724 on both sides and two first transmission chains 725 respectively connected between the first drive sprocket 723 and the first synchronous sprocket 724 on the same side. Correspondingly, the two sides of the first support frame 2 are respectively connected to the opposite first transmission chains 725. Further, the first transmission chains 725 are connected to the first support frame 2 through the first connector 74. The first connector 74 includes a first connecting seat 741 disposed on the first support frame 2 and in contact with one side of the first transmission chain 725, a first connecting plate 742 opposite to the first connecting seat 741 and in contact with the other side of the first transmission chain 725, and a first connecting bolt 743 connected between the first connecting seat 741 and the first connecting plate 742. In the second embodiment of this application, the first transmission component 72 includes two lead screw and nut pairs disposed opposite to each other on both sides of the first support frame 2. Correspondingly, two first lifting motors 71 are provided, and the two first lifting motors 71 are respectively connected to the opposite lead screw and nut pairs. The two sides of the first support frame 2 are respectively connected to the nut seats of the opposite lead screw and nut pairs. The first lifting motors 71 drive the lead screws to rotate, causing the nut seats to move up and down, thereby driving the first support frame 2 to move up and down. This application, by limiting the structure of the first lifting mechanism 7 and using a motor in conjunction with the transmission component, enables the first support frame 2 to be placed at any position between the molding station 11 and the cooling station 12, so as to accommodate the height of different workers and realize the placement and removal of the mold while reducing the physical burden on the workers.

[0028] The first guide member 73 includes two first guide posts 731 disposed opposite to each other on both sides of the first support frame 2 and two first guide blocks 732 respectively disposed on the two first guide posts 731 and connected to the first support frame 2. The first guide posts 731 and the first guide blocks 732 cooperate to ensure that the first support frame 2 moves up and down stably.

[0029] The second lifting mechanism 8 is located on the other side of the frame 1, and connects to and drives the second support frame 2 to move up and down. Specifically, the second lifting mechanism 8 can adopt the same structure as the first lifting mechanism 7, or it can adopt a hydraulic cylinder.

[0030] During foaming and molding, the first lifting mechanism 7 adjusts the first support frame 2 to a suitable position, and the operator sends the mold onto the first support frame 2. Then, the first lifting mechanism 7 continues to work, raising the first support frame 2 to the molding station. The first translation mechanism 4 then pushes the mold to the molding station 11 for the heating process. After the heating process is completed, the second translation mechanism 5 removes the mold from the molding station 11 to the second support frame 3. Then, the second lifting mechanism 8 lowers the second support frame 3 to the cooling station 12. The second translation mechanism 5 then pushes the mold to the cooling station 12 for the cooling process. After the cooling process is completed, the first lifting mechanism 7 lowers the first support frame 2 to the cooling station 12. The first translation mechanism 4 then removes the mold from the cooling station 12 back onto the first support frame 2. The first translation mechanism 4 then moves the first support frame 2 to a suitable position so that the operator can remove the mold.

[0031] This application, by defining the structure of the lifting mechanism and using a motor in conjunction with a transmission component, enables the first support frame 2 to be placed at any position between the molding station 11 and the cooling station 12, so as to accommodate different heights of workers and realize the placement and removal of molds while reducing the physical burden on workers; at the same time, the use of a motor in conjunction with a transmission component can reduce the space occupied by the lifting mechanism, thereby reducing the floor space of the equipment.

[0032] The above description is merely a preferred embodiment of the present utility model, and therefore cannot be construed as limiting the scope of the present utility model. All equivalent changes and modifications made in accordance with the scope of the present utility model application and the contents of the specification should still fall within the scope of the present utility model application.

Claims

1. An EVA foaming molding device with adjustable mold lifting position, characterized in that: The system includes a frame, a first support frame, a second support frame, a first translation mechanism, a second translation mechanism, a mold closing and heating mechanism, a first lifting mechanism, and a second lifting mechanism. The frame includes a molding station and a cooling station spaced vertically apart. The first and second support frames are vertically movable and oppositely arranged on both sides of the frame to support the mold. The mold closing and heating mechanism is vertically movable and located on the frame above the molding station. The first translation mechanism is located on the first support frame and transports the mold to the molding station or removes the mold from the cooling station to the first support frame. The second translation mechanism is located on the second support frame and removes the mold from the molding station to the second support frame or transports the mold to the cooling station. The first lifting mechanism is located on one side of the frame, connects to and drives the first support frame to move vertically, and includes a first lifting motor located on the frame to drive the first support frame to move vertically and a first transmission assembly connected between the first lifting motor and the first support frame. The second lifting mechanism is located on the other side of the frame and connects to and drives the second support frame to move vertically.

2. The EVA foaming molding device with adjustable mold lifting position according to claim 1, characterized in that: The first transmission assembly includes a first rotating rod rotatably mounted on the frame, a first synchronizing rod mounted on the frame opposite to the first rotating rod, two first driving sprockets opposite to each other on both sides of the first rotating rod, two first synchronizing sprockets opposite to each other on both sides of the first synchronizing rod, and two first transmission chains respectively connected between the first driving sprocket and the first synchronizing sprocket on the same side. The first support frame is connected to the opposite first transmission chains on both sides.

3. The EVA foaming molding device with adjustable mold lifting position according to claim 2, characterized in that: The first lifting mechanism further includes a first guide member, which includes two first guide columns disposed opposite to each other on both sides of the first support frame and two first guide blocks respectively disposed on the two first guide columns and connected to the first support frame.

4. The EVA foaming molding device with adjustable mold lifting position according to claim 2, characterized in that: The first transmission chain is connected to the first support frame via a first connector. The first connector includes a first connecting seat disposed on the first support frame and in contact with one side of the first transmission chain, a first connecting plate opposite to the first connecting seat and in contact with the other side of the first transmission chain, and a first connecting bolt connected between the first connecting seat and the first connecting plate.

5. The EVA foaming molding device with adjustable mold lifting position according to claim 1, characterized in that: The first transmission assembly includes two lead screw and nut pairs disposed opposite each other on both sides of the first support frame. There are two first lifting motors, and the two first lifting motors are respectively connected to the opposite lead screw and nut pairs.

6. The EVA foaming molding device with adjustable mold lifting position according to claim 1, characterized in that: The structure of the second lifting mechanism is the same as that of the first lifting mechanism.

7. The EVA foaming molding device with adjustable mold lifting position according to claim 1, characterized in that: The forming station includes a first support plate mounted on the frame and a first heating plate mounted at the bottom of the first support plate.

8. An EVA foaming molding device with adjustable mold lifting position according to claim 7, characterized in that: The mold closing heating mechanism includes a second heating plate that can move up and down and is located above the first support plate, and an oil cylinder that is mounted on the frame and connected to drive the first heating plate to move up and down.

9. An EVA foaming molding device with adjustable mold lifting position according to claim 1, characterized in that: The cooling station includes a second support plate located on the frame below the first support plate and a cooling plate located at the bottom of the second support plate.

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