High-elastic polyurethane sole manufacturing device

Abstract

The invention provides a high-elastic polyurethane shoe sole manufacturing device, and relates to the field of polyurethane shoe sole manufacturing, the high-elastic polyurethane shoe sole manufacturing device comprises a rack, the upper part of the rack is provided with a linear moving module, the output end of the linear moving module is fixedly connected with a sliding frame, and the lower side of the sliding frame is fixedly provided with a mixing frame; the mixing frame is provided with a raw material mixing, propelling and extruding assembly which is synchronously driven, the rack is provided with a charging barrel, a charging barrel pipe is connected with the raw material mixing, propelling and extruding assembly, dynamic mixing of high-elastic polyurethane raw materials and adding of the high-elastic polyurethane raw materials into a shoe mold are achieved through the raw material mixing, propelling and extruding assembly, and long-time retention at a moderate position is avoided; the high-elasticity polyurethane shoe sole forming device is matched with a cooling blowing-out system matched with an air pump, an air guide pipe and an air guide channel, blowing-out of a formed hot high-elasticity polyurethane shoe sole is achieved, meanwhile, the cavity temperature of a shoe mold is temporarily reduced, the situation that bubbles are generated on the shoe sole due to high temperature is avoided, and the product quality is improved.

Description

Technical Field

[0001] This invention relates to the field of polyurethane shoe sole manufacturing, specifically to a high-elastic polyurethane shoe sole manufacturing apparatus. Background Technology

[0002] High-elastic polyurethane shoe soles are generally made from resin A, synthesized with polyols, chain extenders, catalysts, organosilicon pore-opening agents, water, etc., and prepolymer resin B, resulting in a lightweight, high-elastic polyurethane shoe sole material. After mixing resin A and prepolymer resin B, the mixture is extruded into a shoe mold. The mold is then heated and extruded into shape. After processing, the shoe mold is generally at a high temperature, and the high-elastic polyurethane shoe sole is also at a high temperature, making it difficult to remove. Furthermore, the high temperature in the shoe mold leads to rapid molding after the resin A and prepolymer resin B are extruded, making uniform molding difficult and thus reducing product quality. Summary of the Invention

[0003] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a high-elastic polyurethane shoe sole manufacturing device, which solves the problems of uneven molding of high-elastic polyurethane shoe soles and difficulty in removing hot shoe soles in existing technologies.

[0004] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: a high-elastic polyurethane shoe sole manufacturing device, comprising a frame, a linear motion module disposed on the upper part of the frame, a sliding frame fixedly connected to the output end of the linear motion module, a mixing frame fixedly installed on the lower side of the sliding frame, a synchronously driven raw material mixing and pushing extrusion assembly disposed on the mixing frame, and a material cylinder disposed on the frame, the material cylinder tube being connected to the raw material mixing and pushing extrusion assembly; The lower part of the frame is provided with a shoe mold, and an air guide channel is provided in the lower mold of the shoe mold and at the rear side. The air guide channel is connected to an air guide pipe, and the other end of the air guide pipe is fixedly connected to an air pump.

[0005] Preferably, the upper part of the frame is provided with sliding grooves on both sides of the linear motion module, and the two ends of the sliding frame are slidably connected to the sliding grooves.

[0006] Preferably, the raw material mixing and pushing extrusion assembly includes a mixing frame, a mixing component is provided on one side of the mixing frame and a pushing component is provided on the other side, a synchronous drive component is provided between the mixing component and the pushing component, a discharge head is fixedly connected to the output end of the pushing component, and the discharge port of the mixing component is connected to the discharge head through a conduit.

[0007] Preferably, the mixing assembly includes a motor and a rotating drum. The inner side of the mixing frame includes a support plate. The motor is fixedly installed on the upper side of the support plate. The rotating drum is fixedly connected to the output end of the motor. The inner side of the rotating drum is provided with a spiral groove. A guide is slidably connected in the spiral groove. A sliding rod is rotatably connected to the lower side of the guide. The sliding rod is slidably connected to the bottom of the mixing frame.

[0008] Preferably, a mixing paddle is rotatably connected to the inner side of the mixing frame, a communicating cavity is provided in the lower end of the mixing paddle, the mixing paddle extends downward through the mixing frame, and a connector is fixedly provided on the lower side of the mixing frame at the position corresponding to the mixing paddle, the communicating cavity is connected to the connector, and the connector is connected to a conduit.

[0009] Preferably, the synchronous drive assembly consists of gear one, gear two, and gear three. The inner side of the mixing frame is provided with a mounting cavity. Gear one, gear two, and gear three are all located in the mounting cavity, and gear three is rotatably connected to the mounting cavity. Gear three simultaneously meshes with gear one and gear two. Gear one is fixed to the lower end of the rotating drum, and gear two is fixed to the mixing paddle rod.

[0010] Preferably, a circular groove is provided in the middle of the gear one, and the slide rod passes through the circular groove.

[0011] Preferably, the discharge head is located directly above the shoe mold.

[0012] (III) Beneficial Effects This invention provides an apparatus for manufacturing high-elastic polyurethane shoe soles. It has the following beneficial effects: By using the raw material mixing and extrusion assembly, the high-elastic polyurethane raw material is dynamically mixed and added to the shoe mold, avoiding prolonged retention in the tempering area. Combined with a cooling and blowing system that uses an air pump, air pipe, and air channel, the hot high-elastic polyurethane sole after molding is blown out. At the same time, the cavity temperature of the shoe mold is temporarily reduced, preventing the formation of air bubbles in the sole due to high temperature, thus improving product quality. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a longitudinal section view of the raw material mixing and propulsion extrusion assembly in this invention; Figure 3 For the present invention in Figure 2 Enlarged view of point A in the middle; Figure 4 This is a side view of the present invention; Figure 5 This is a top view of the present invention; Figure 6 This is a rear view of the present invention; Figure 7 This is a schematic diagram of the air duct on the inner side of the shoe mold in this invention.

[0014] The components are as follows: 1. Frame; 2. Material cylinder; 3. Sliding frame; 4. Mixing frame; 5. Linear movement module; 6. Shoe mold; 7. Rotary drum; 8. Mixing paddle; 9. Motor; 10. Spiral groove; 12. Guide frame; 13. Slide rod; 14. Gear 1; 15. Discharge head; 16. Connecting cavity; 17. Gear 2; 18. Gear 3; 19. Guide tube; 20. Air guide tube; 21. Air pump; 22. Air guide channel. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] like Figures 1-7 As shown, this embodiment of the invention provides a high-elastic polyurethane shoe sole manufacturing device, including a frame 1. A linear motion module 5 is provided on the upper part of the frame 1, that is, the linear motion module 5 is arranged and installed on a horizontal mounting plate included on the upper part of the frame 1. A sliding frame 3 is fixedly connected to the output end of the linear motion module 5. The sliding frame 3 is provided with through-tube openings on both sides of the linear motion module 5. A mixing frame 4 is fixedly installed on the lower side of the sliding frame 3. A synchronously driven raw material mixing and pushing extrusion assembly is provided on the mixing frame 4. A material cylinder 2 is provided on the frame 1. The material cylinder 2 is pipe-connected to the raw material mixing and pushing extrusion assembly. The pipes connecting the material cylinder 2 and the raw material mixing and pushing extrusion assembly are arranged in the through-tube openings. The number of material cylinders 2 is set according to the composition of the raw materials of the high-elastic polyurethane shoe that can be stored independently to avoid premature reaction. The material cylinders 2 are specifically arranged on the horizontal mounting plate. A shoe mold 6 is provided at the lower part of the frame 1. An air duct 22 is provided in the lower mold of the shoe mold 6 and at the rear side. The air duct 22 is connected to an air pipe 20. The other end of the air pipe 20 is fixedly connected to an air pump 21. The shoe mold 6 is composed of upper and lower molds that are hinged and openable. The interior of the upper and lower molds includes the cavity corresponding to the shoe sole manufacturing. Its shape features can be freely processed and customized as needed. The shoe mold 6 itself includes a heating function, which is a well-known technology in the high-elastic polyurethane shoe sole processing industry and will not be described in detail here. After the high-elastic polyurethane is injected into the shoe mold 6 and formed, the air pump 21 is activated. Air is blown through the air pipe 20 to the air duct 22 by the air pump 21 to promote the rapid separation of the high-elastic polyurethane shoe sole from the cavity, while preventing dust and impurities from entering the cavity, thereby reducing defects on the surface of the high-elastic polyurethane shoe sole and improving the quality of the finished product. The process can also cool down the cavity of the shoe mold 6.

[0017] The upper part of the frame 1 is provided with sliding grooves on both sides of the linear motion module 5. The two ends of the sliding frame 3 are slidably connected to the sliding grooves. The sliding grooves mentioned above play a guiding and supporting role in the movement of the sliding frame 3, avoiding unilateral wear caused by the weight of the linear motion module 5, and improving the service life of the high-elastic polyurethane shoe sole manufacturing device.

[0018] The raw material mixing and pushing extrusion assembly includes a mixing frame 4, a mixing component is provided on one side of the mixing frame 4, and a pushing component is provided on the other side. A synchronous drive component is provided between the mixing component and the pushing component. The output end of the pushing component is fixedly connected to the discharge head 15. The discharge port of the mixing component is connected to the discharge head 15 through a conduit 19. In the above, the high-elastic polyurethane raw material mixed by the mixing component is pushed into the discharge head 15 through the conduit 19 and falls into the cavity of the open shoe mold 6 as the pushing component approaches.

[0019] The mixing assembly includes a motor 9 and a rotating drum 7. The inner side of the mixing frame 4 includes a support plate. The motor 9 is fixedly installed on the upper side of the support plate. The rotating drum 7 is fixedly connected to the output end of the motor 9. The inner side of the rotating drum 7 is provided with a spiral groove 10. A guide frame 12 is slidably connected in the spiral groove 10. A slide rod 13 is rotatably connected to the lower side of the guide frame 12. The slide rod 13 is slidably connected to the bottom of the mixing frame 4. After the motor 9 is started, it drives the rotating drum 7 to rotate. However, due to the shape freedom constraint of the slide rod 13 by the mixing frame 4, the spiral groove 10 realizes the slide rod 13 to slide up and down relative to the mixing frame 4 through the guide frame 12, thereby realizing the up and down movement of the discharge head 15 connected to the lower end of the slide rod 13. The moving area of ​​the discharge head 15 driven by the slide rod 13 is larger than the turning radius of the shoe mold 6 when it is opened. That is, the shoe mold 6 will not hit the discharge head 15 when the uppermost position of the slide rod 13 after it is opened.

[0020] A mixing paddle 8 is rotatably connected to the inner side of the mixing frame 4. A connecting cavity 16 is provided in the lower end of the mixing paddle 8. The mixing paddle 8 extends downward through the mixing frame 4. A connector is fixedly provided on the lower side of the mixing frame 4 at the position corresponding to the mixing paddle 8. The connecting cavity 16 connects to the connector, and the connector connects to the conduit 19. The mixing paddle 8 is used to mix the high-elastic polyurethane raw material. After mixing, it is carried downward through the connecting cavity 16 into the connector. The direction of rotation of the mixing paddle 8 when it rotates to press down the high-elastic polyurethane raw material is the same as the direction of rotation of the rotating drum 7 when it pushes the guide frame 12 downward.

[0021] The synchronous drive assembly consists of gear 14, gear 27, and gear 38. An installation cavity is provided inside the mixing frame 4, where gears 14, 27, and 38 are all located. Gear 318 is rotatably connected to the installation cavity and simultaneously meshes with gears 14 and 27. Gear 14 is fixed to the lower end of the rotating drum 7, and gear 27 is fixed to the mixing paddle 8. By designing corresponding transmission ratios for gears 14, 27, and 38, the number of rotations of gear 217 after one rotation of gear 14 is at least 2-5 times that of gear 14. The corresponding pitch of the mixing paddle 8 is one-fifth to one-half of the spiral groove 10. Thus, during the downward movement of the discharge head 15, multiple rotations of the mixing paddle 8 connected to gear 217 are achieved, ensuring thorough mixing and downward pressure of the high-elasticity polyurethane raw material.

[0022] A circular groove is provided in the middle of gear 14, and slide rod 13 passes through the circular groove.

[0023] The discharge head 15 is located directly above the shoe mold 6, which facilitates the extrusion of the mixed high-elastic polyurethane raw material into the cavity of the shoe mold 6 after the shoe mold 6 is opened.

[0024] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-elastic polyurethane shoe sole manufacturing apparatus, comprising a frame (1), characterized in that: A linear motion module (5) is provided on the upper part of the frame (1). A sliding frame (3) is fixedly connected to the output end of the linear motion module (5). A mixing frame (4) is fixedly installed on the lower side of the sliding frame (3). A synchronously driven raw material mixing and pushing extrusion assembly is provided on the mixing frame (4). A material cylinder (2) is provided on the frame (1). The material cylinder (2) is connected to the raw material mixing and pushing extrusion assembly. The lower part of the frame (1) is provided with a shoe mold (6), and an air duct (22) is provided in the lower mold of the shoe mold (6) and at the rear side. The air duct (22) is connected to an air pipe (20), and the other end of the air pipe (20) is fixedly connected to an air pump (21).

2. The high-elastic polyurethane shoe sole manufacturing apparatus according to claim 1, characterized in that: The upper part of the frame (1) is provided with sliding grooves on both sides of the linear motion module (5), and the two ends of the sliding frame (3) are slidably connected to the sliding grooves.

3. A high-elastic polyurethane shoe sole manufacturing apparatus according to claim 1 or 2, characterized in that: The raw material mixing and pushing extrusion assembly includes a mixing frame (4), a mixing component is provided on one side of the mixing frame (4), a pushing component is provided on the other side, a synchronous drive component is provided between the mixing component and the pushing component, and a discharge head (15) is fixedly connected to the output end of the pushing component. The discharge port of the mixing component is connected to the discharge head (15) through a conduit (19).

4. The high-elastic polyurethane shoe sole manufacturing apparatus according to claim 3, characterized in that: The mixing assembly includes a motor (9) and a rotating drum (7). The inner side of the mixing frame (4) includes a support plate. The motor (9) is fixedly installed on the upper side of the support plate. The rotating drum (7) is fixedly connected to the output end of the motor (9). The inner side of the rotating drum (7) is provided with a spiral groove (10). A guide frame (12) is slidably connected in the spiral groove (10). A slide rod (13) is rotatably connected to the lower side of the guide frame (12). The slide rod (13) is slidably connected to the bottom of the mixing frame (4).

5. The high-elastic polyurethane shoe sole manufacturing apparatus according to claim 4, characterized in that: The mixing frame (4) is rotatably connected to a mixing paddle (8). A connecting cavity (16) is provided in the lower end of the mixing paddle (8). The mixing paddle (8) extends downward through the mixing frame (4). A connector is fixedly provided on the lower side of the mixing frame (4) at the position corresponding to the mixing paddle (8). The connecting cavity (16) is connected to the connector. The connector is connected to the conduit (19).

6. The high-elastic polyurethane shoe sole manufacturing apparatus according to claim 5, characterized in that: The synchronous drive assembly consists of gear one (14), gear two (17) and gear three (18). The inner side of the mixing frame (4) is provided with an installation cavity. Gear one (14), gear two (17) and gear three (18) are all located in the installation cavity, and gear three (18) is rotatably connected to the installation cavity. Gear three (18) simultaneously meshes with gear one (14) and gear two (17). Gear one (14) is fixed to the lower end of the rotating drum (7), and gear two (17) is fixed to the mixing paddle (8).

7. The high-elastic polyurethane shoe sole manufacturing apparatus according to claim 6, characterized in that: The gear (14) has a circular groove in the middle, and the slide rod (13) passes through the circular groove.

8. The high-elastic polyurethane shoe sole manufacturing apparatus according to claim 7, characterized in that: The discharge head (15) is located directly above the shoe mold (6).

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