Extrusion device for EVA shoe sole production

Abstract

The utility model relates to the technical field of sole production, and provides an extrusion device for EVA (Ethylene Vinyl Acetate) shoe sole production, which comprises a workbench, the bottom of the workbench is fixedly connected with supporting legs, the top of the workbench is provided with an extruder, the side surface of the extruder is provided with a mold, and the top of the workbench is provided with a feeding device; the feeding device comprises a motor, the bottom of the motor is fixedly connected to the top of the workbench, and an output shaft of the motor is fixedly connected with a rotating shaft. By means of the technical scheme, the problem that in the prior art, through rotation of an output shaft of a motor and cooperation of a half gear, a rack, a discharging box, a discharging port, a feeding port and other assemblies in a discharging device, the discharging port of the discharging box can be opened when a baffle moves backwards is solved, and therefore raw materials in the discharging box can be conveyed into an extruder; and therefore, through the action of the half gear, indirect feeding can be carried out on the extruder.

Description

Technical Field

[0001] This utility model relates to the field of shoe sole production technology, specifically to an extrusion device for EVA shoe sole production. Background Technology

[0002] The construction of shoe soles is quite complex. In a broad sense, it can include all the materials that make up the bottom, such as the outsole, midsole, and heel. In a narrow sense, it refers only to the outsole. Generally, common characteristics of shoe sole materials should include abrasion resistance, water resistance, oil resistance, heat resistance, pressure resistance, impact resistance, good elasticity, easy conforming to foot shape, resistance to deformation after shaping, heat retention, and easy absorption of moisture. At the same time, it should work in conjunction with the midsole to provide braking effect when changing feet to prevent slipping and to facilitate stopping.

[0003] According to a public disclosure (CN216860546U) of an extrusion device for producing plastic masterbatch, the device includes an extrusion box, a feed hopper fixedly installed on the top of the extrusion box, a heat preservation mechanism inside the extrusion box, a speed control mechanism located directly below the heat preservation mechanism, and a forming mechanism located on the top of the extrusion box. This extrusion device for producing plastic masterbatch, through the cooperation of the heat preservation mechanism and the speed control mechanism, can control the falling speed of the masterbatch melt. This solves the problem in existing devices where, during extrusion, the masterbatch melt production speed exceeds the extrusion speed, causing the masterbatch solution to accumulate and gradually cool before extrusion, thus affecting the extrusion molding effect and causing production quality problems. This device ensures the quality of the extruded masterbatch and improves the practicality of the device.

[0004] The aforementioned application, through the combination of the extrusion box and the feed hopper assembly, makes it impossible to automatically feed the extruder, resulting in increased labor costs. Therefore, we propose an extrusion device for the production of EVA shoe soles that can automatically feed the extruder. Utility Model Content

[0005] This invention proposes an extrusion device for the production of EVA shoe soles, which solves the problems mentioned in the above documents.

[0006] The technical solution of this utility model is as follows: it includes a workbench, a support leg fixedly connected to the bottom of the workbench, an extruder provided on the top of the workbench, a mold provided on the side of the extruder, and a feeding device provided on the top of the workbench.

[0007] The feeding device includes a motor, the bottom of which is fixedly connected to the top of the worktable. The output shaft of the motor is fixedly connected to a rotating shaft, and a half gear is fixedly passed through the circumferential surface of the rotating shaft. A rack is slidably connected to the top of the worktable, and a connecting rod is fixedly connected to the back side of the rack. A push rod is fixedly connected to the top of the connecting rod. A feeding box is fixedly connected to the side of the worktable, and a discharge port is opened on the side of the feeding box. A feeding port is opened on the circumferential surface of the extruder.

[0008] The side of the feeding box is provided with a sliding groove, and a baffle is slidably connected to the inner wall of the sliding groove. A guide plate is fixedly connected to the bottom of the feeding box. The baffle is used to block the material in the feeding box, and the guide plate is used to ensure that the material can enter the extruder accurately.

[0009] A connecting plate is fixedly connected to the top of the workbench, and a tension spring is fixedly connected to the back side of the connecting plate. The end of the tension spring away from the connecting plate is fixedly connected to the front side of the rack. The function of the tension spring is to prevent the rack from being pushed when the half gear rotates to the toothless side, and the rack can be reset by the tension spring.

[0010] A force-bearing plate is fixedly connected to the back side of the feeding box, and a return spring is fixedly connected to the front side of the force-bearing plate. The end of the return spring away from the force-bearing plate is fixedly connected to the back side of the baffle. The function of the return spring is to allow the baffle to be reset when the push rod stops pushing the baffle.

[0011] The circumferential surface of the half gear meshes with the top of the rack. The front side of the baffle is located on the displacement trajectory of the push rod. The top of the guide plate is located below the discharge port, and the bottom of the guide plate is located above the feed port. The function of the circumferential surface of the half gear meshing with the top of the rack is to push the rack to move when the half gear rotates. The function of the top of the guide plate being located below the discharge port and the bottom of the guide plate being located above the feed port is to allow the material from the discharge port to enter the extruder from the feed port through the guide plate.

[0012] The top of the workbench is equipped with a water cooling device, which includes a push bar. The front side of the push bar is fixedly connected to the back side of the connecting rod. A cold water tank is fixedly connected to the top of the workbench. A water outlet is opened on the back side of the cold water tank. A water supply pipe is fixedly connected to the inner wall of the water outlet. A water spray head is fixedly connected to one end of the water supply pipe. The function of the cold water tank is to store water for cooling the soles of the shoes.

[0013] A force-bearing column runs through the front side of the cold water tank. The circumferential surface of the force-bearing column is slidably connected to the inner wall of the cold water tank. A push plate is fixedly connected to the back side of the force-bearing column. The side of the push plate is slidably connected to the inner wall of the cold water tank. The function of the push plate is to squeeze the water in the cold water tank.

[0014] A spring is fixedly connected to the circumferential surface of the force-bearing column. The end of the spring away from the force-bearing column is fixedly connected to the front side of the cold water tank. The function of the spring is to allow the force-bearing column to reset when the push bar stops pushing it.

[0015] The top of the workbench is provided with a drainage channel, and the bottom of the workbench is slidably connected to a wastewater tank. The drainage channel is used to prevent the sprayed water from entering the wastewater tank, and the wastewater tank is used to collect the cooled wastewater.

[0016] The front side of the force-bearing column is located on the displacement trajectory of the pusher bar. The top of the water spray head is located below the mold. The top of the diversion groove is located below the water spray head. The bottom of the diversion groove is located above the wastewater tank. The purpose of the front side of the force-bearing column being located on the displacement trajectory of the pusher bar is to push the force-bearing column when the pusher bar moves.

[0017] The working principle and beneficial effects of this utility model are as follows:

[0018] 1. In this utility model, the rotation of the motor output shaft and the cooperation of components such as the half gear, rack, connecting rod, push rod, feeding box, discharge port, and feed port inside the discharge device enable the half gear to rotate counterclockwise when the rotating shaft rotates counterclockwise. When the half gear rotates counterclockwise, it pushes the rack to move backward. When the rack moves backward, it drives the connecting rod and push rod to move backward. When the push rod moves backward, it pushes the baffle to move backward along the slide groove. When the baffle moves backward, it opens the discharge port of the feeding box, thereby allowing the raw material in the feeding box to be transported into the extruder. Furthermore, through the action of the half gear, the extruder can be indirectly fed.

[0019] 2. In this utility model, the movement of the connecting rod and the internal components of the water cooling device, such as the push bar, cold water tank, water outlet, water supply pipe, and spray head, work together to achieve the following: when the connecting rod moves backward, it drives the push bar to move backward. When the push bar moves backward, it pushes the force column into the cold water tank. When the force column moves into the cold water tank, it drives the push plate to move. When the push plate moves, it squeezes the water in the cold water tank, thereby squeezing the water in the cold water tank from the water outlet along the water supply pipe to the spray head, so that it is sprayed out from the spray head, thereby water cooling the shoe sole inside the mold. Attached Figure Description

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0021] Figure 1 This is a three-dimensional appearance structure diagram of the present utility model;

[0022] Figure 2This is a three-dimensional overall structural diagram of the feeding device of this utility model;

[0023] Figure 3 This is a three-dimensional overall structural diagram of the water-cooling device of this utility model;

[0024] Figure 4 This utility model Figure 2 A three-dimensional magnified structural diagram of A in the middle;

[0025] Figure 5 This utility model Figure 2 A three-dimensional magnified structural diagram of B in the diagram;

[0026] Figure 6 This utility model Figure 3 A three-dimensional magnified structural diagram of C.

[0027] In the diagram: 1. Workbench; 2. Support leg; 3. Extruder; 4. Mold; 5. Feeding device; 51. Motor; 52. Shaft; 53. Half gear; 54. Rack; 55. Connecting rod; 56. Push rod; 57. Feed box; 58. Discharge port; 59. Feed port; 510. Slide groove; 511. Baffle; 512. Guide plate; 513. Connecting plate; 514. Tension spring; 515. Force plate; 516. Return spring; 6. Water cooling device; 61. Push bar; 62. Cold water tank; 63. Water outlet; 64. Water pipe; 65. Spray head; 66. Force column; 67. Push plate; 68. Elastic spring; 69. Drainage channel; 610. Wastewater tank. Detailed Implementation

[0028] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0029] Example 1

[0030] like Figures 1-6 As shown, this embodiment proposes an extrusion device for the production of EVA shoe soles, including a workbench 1, a support leg 2 fixedly connected to the bottom of the workbench 1, an extruder 3 provided on the top of the workbench 1, a mold 4 provided on the side of the extruder 3, and a feeding device 5 provided on the top of the workbench 1.

[0031] The feeding device 5 includes a motor 51, the bottom of which is fixedly connected to the top of the worktable 1. The output shaft of the motor 51 is fixedly connected to a rotating shaft 52. A half gear 53 is fixedly passed through the circumferential surface of the rotating shaft 52. A rack 54 is slidably connected to the top of the worktable 1. A connecting rod 55 is fixedly connected to the back side of the rack 54. A push rod 56 is fixedly connected to the top of the connecting rod 55. A feeding box 57 is fixedly connected to the side of the worktable 1. A discharge port 58 is opened on the side of the feeding box 57. A feeding port 59 is opened on the circumferential surface of the extruder 3.

[0032] A chute 510 is provided on the side of the feeding box 57. A baffle 511 is slidably connected to the inner wall of the chute 510. A guide plate 512 is fixedly connected to the bottom of the feeding box 57. The baffle 511 is used to block the material inside the feeding box 57. The guide plate 512 is used to ensure that the material can enter the extruder 3 accurately.

[0033] A connecting plate 513 is fixedly connected to the top of the workbench 1. A tension spring 514 is fixedly connected to the back side of the connecting plate 513. The end of the tension spring 514 away from the connecting plate 513 is fixedly connected to the front side of the rack 54. The function of the tension spring 514 is to prevent the rack 54 from being pushed when the half gear 53 rotates to the toothless side. The rack 54 can be reset by using the tension spring 514.

[0034] A force plate 515 is fixedly connected to the back side of the feeding box 57, and a return spring 516 is fixedly connected to the front side of the force plate 515. The end of the return spring 516 away from the force plate 515 is fixedly connected to the back side of the baffle 511. The function of the return spring 516 is to allow the baffle 511 to be reset when the push rod 56 stops pushing the baffle 511.

[0035] The circumferential surface of the half gear 53 meshes with the top of the rack 54. The front side of the baffle 511 is located on the displacement trajectory of the push rod 56. The top of the guide plate 512 is located below the discharge port 58, and the bottom of the guide plate 512 is located above the feed port 59. The function of the circumferential surface of the half gear 53 meshing with the top of the rack 54 is to push the rack 54 to move when the half gear 53 rotates. The function of the top of the guide plate 512 being located below the discharge port 58 and the bottom of the guide plate 512 being located above the feed port 59 is to allow the material from the discharge port 58 to enter the extruder 3 through the feed port 59 via the guide plate 512.

[0036] In this embodiment, firstly, when the device is needed to produce shoe soles, the feeding device 5 can be used to automatically feed the extruder 3. By starting the motor 51, when the output shaft of the motor 51 rotates counterclockwise, it will drive the rotating shaft 52 to rotate counterclockwise. When the rotating shaft 52 rotates counterclockwise, it will drive the half gear 53 to rotate counterclockwise. When the half gear 53 rotates counterclockwise, it will push the rack 54 to move backward. When the rack 54 moves backward, it will drive the connecting rod 55 and the push rod 56 to move backward. When the push rod 56 moves backward, it will push the baffle 511 to move backward along the slide 510. When the baffle 511 moves backward, it will open the feed box. The discharge port 58 of 57 is opened, allowing the raw material in the feed box 57 to exit from the discharge port 58 and enter the extruder 3 through the feed port 59 along the guide plate 512. When the half gear 53 rotates to the toothless side, the rack 54 will be reset by the tension spring 514 to drive the connecting rod 55 and the push rod 56 because it is no longer pushed by the half gear 53. After the push rod 56 is reset, the baffle 511 will be reset by the reset spring 516 to block the discharge port 58 because it is no longer pushed by the push rod 56. When the half gear 53 rotates to the toothed side again, the above principle will be repeated, thereby realizing indirect feeding of the extruder 3.

[0037] Example 2

[0038] like Figures 1-6 As shown, based on the same concept as Embodiment 1 above, a second embodiment is also proposed. A water cooling device 6 is provided on the top of the workbench 1. The water cooling device 6 includes a pusher 61. The front side of the pusher 61 is fixedly connected to the back side of the connecting rod 55. A cold water tank 62 is fixedly connected to the top of the workbench 1. A water outlet 63 is opened on the back side of the cold water tank 62. A water supply pipe 64 is fixedly connected to the inner wall of the water outlet 63. A water spray head 65 is fixedly connected to one end of the water supply pipe 64. The function of the cold water tank 62 is to store water for cooling the soles of the shoes.

[0039] A force-bearing column 66 runs through the front side of the cold water tank 62. The circumferential surface of the force-bearing column 66 is slidably connected to the inner wall of the cold water tank 62. A push plate 67 is fixedly connected to the back side of the force-bearing column 66. The side of the push plate 67 is slidably connected to the inner wall of the cold water tank 62. The function of the push plate 67 is to squeeze the water in the cold water tank 62.

[0040] A spring 68 is fixedly connected to the circumferential surface of the force-bearing column 66. The end of the spring 68 away from the force-bearing column 66 is fixedly connected to the front side of the cold water tank 62. The function of the spring 68 is to allow the force-bearing column 66 to reset when the push bar 61 stops pushing it.

[0041] The top of the workbench 1 is provided with a drainage channel 69, and the bottom of the workbench 1 is slidably connected to a wastewater tank 610. The function of the drainage channel 69 is to prevent the sprayed water from entering the wastewater tank 610, and the function of the wastewater tank 610 is to collect the cooled wastewater.

[0042] The front and side surfaces of the force-bearing column 66 are located on the displacement trajectory of the pusher 61. The top of the water spray head 65 is located below the mold 4. The top of the flow channel 69 is located below the water spray head 65. The bottom of the flow channel 69 is located above the wastewater tank 610. The purpose of the front and side surfaces of the force-bearing column 66 being located on the displacement trajectory of the pusher 61 is to push the force-bearing column 66 when the pusher 61 moves.

[0043] In this embodiment, the movement of the connecting rod 55 can drive the water cooling device 6. After the sole is extruded, the water cooling device 6 can be used to quickly cool it down and shape it. When the connecting rod 55 moves backward, it will drive the pusher 61 to move backward. When the pusher 61 moves backward, it will push the force column 66 into the cold water tank 62. When the force column 66 moves into the cold water tank 62, it will drive the push plate 67 to move. When the push plate 67 moves, it will squeeze the water in the cold water tank 62 and send it from the outlet 63 along the water pipe 64 to the spray head 65. The pushing force of the push plate 67 can be used to spray water out from the spray head 65, thereby cooling the sole in the mold 4 and making it form quickly.

[0044] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An extrusion apparatus for producing EVA shoe soles, characterized in that, Includes a workbench (1), with a support leg (2) fixedly connected to the bottom of the workbench (1), an extruder (3) provided on the top of the workbench (1), a mold (4) provided on the side of the extruder (3), and a feeding device (5) provided on the top of the workbench (1). The feeding device (5) includes a motor (51), the bottom of which is fixedly connected to the top of the workbench (1). The output shaft of the motor (51) is fixedly connected to a rotating shaft (52). A half gear (53) is fixedly passed through the circumferential surface of the rotating shaft (52). A rack (54) is slidably connected to the top of the workbench (1). A connecting rod (55) is fixedly connected to the back side of the rack (54). A push rod (56) is fixedly connected to the top of the connecting rod (55). A feeding box (57) is fixedly connected to the side of the workbench (1). A discharge port (58) is opened on the side of the feeding box (57). A feeding port (59) is opened on the circumferential surface of the extruder (3).

2. The extrusion apparatus for producing EVA shoe soles according to claim 1, characterized in that, The side of the feeding box (57) is provided with a sliding groove (510), the inner wall of the sliding groove (510) is slidably connected with a baffle (511), and the bottom of the feeding box (57) is fixedly connected with a guide plate (512).

3. An extrusion apparatus for producing EVA shoe soles according to claim 2, characterized in that, A connecting plate (513) is fixedly connected to the top of the workbench (1), and a tension spring (514) is fixedly connected to the back side of the connecting plate (513). The end of the tension spring (514) away from the connecting plate (513) is fixedly connected to the front side of the rack (54).

4. An extrusion apparatus for producing EVA shoe soles according to claim 3, characterized in that, A force plate (515) is fixedly connected to the back side of the feeding box (57), and a return spring (516) is fixedly connected to the front side of the force plate (515). The end of the return spring (516) away from the force plate (515) is fixedly connected to the back side of the baffle (511).

5. An extrusion apparatus for producing EVA shoe soles according to claim 4, characterized in that, The circumferential surface of the half gear (53) meshes with the top of the rack (54), the front side of the baffle (511) is located on the displacement trajectory of the push rod (56), the top of the guide plate (512) is located below the discharge port (58), and the bottom of the guide plate (512) is located above the feed port (59).

6. An extrusion apparatus for producing EVA shoe soles according to claim 5, characterized in that, The top of the workbench (1) is provided with a water cooling device (6), which includes a push bar (61). The front side of the push bar (61) is fixedly connected to the back side of the connecting rod (55). The top of the workbench (1) is fixedly connected with a cold water tank (62). The back side of the cold water tank (62) is provided with a water outlet (63). The inner wall of the water outlet (63) is fixedly connected with a water supply pipe (64). One end of the water supply pipe (64) is fixedly connected with a spray head (65).

7. An extrusion apparatus for producing EVA shoe soles according to claim 6, characterized in that, A force-bearing column (66) runs through the front side of the cold water tank (62). The circumferential surface of the force-bearing column (66) is slidably connected to the inner wall of the cold water tank (62). A push plate (67) is fixedly connected to the back side of the force-bearing column (66). The side of the push plate (67) is slidably connected to the inner wall of the cold water tank (62).

8. An extrusion apparatus for producing EVA shoe soles according to claim 7, characterized in that, A spring (68) is fixedly connected to the circumferential surface of the force-bearing column (66), and the end of the spring (68) away from the force-bearing column (66) is fixedly connected to the front side of the cold water tank (62).

9. An extrusion apparatus for producing EVA shoe soles according to claim 8, characterized in that, The top of the workbench (1) is provided with a drainage channel (69), and the bottom of the workbench (1) is slidably connected to a wastewater tank (610).

10. An extrusion apparatus for producing EVA shoe soles according to claim 9, characterized in that, The front side of the force-bearing column (66) is located on the displacement trajectory of the push bar (61), the top of the water spray head (65) is located below the mold (4), the top of the diversion groove (69) is located below the water spray head (65), and the bottom of the diversion groove (69) is located above the wastewater tank (610).

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