High-resilience foamed rubber shoe sole and method of making

Abstract

The present application relates to the technical field of foamed rubber sole preparation, in particular to a high-rebound foamed rubber sole and a preparation method thereof, which comprises a reserved edge on the periphery of the high-rebound foamed rubber sole. The present application also relates to an apparatus for manufacturing the high-rebound foamed rubber sole, which comprises a processing workbench, a cutter arranged on the front wall of the rear end of the processing workbench, and a sole automatic fixing assembly rotatably connected to one end of the upper side of the U-shaped frame. The fixing sleeve serves to fix the high-rebound foamed rubber sole. The sole automatic fixing assembly is provided, the arc-shaped rack A and the threaded rod are used to drive the downward movement of the fixed sleeve connected by threads, so that the bottom pressure head is pressed on the sole to achieve automatic fixing, replacing manual fixing. The driving wheel on the motor is engaged with the transmission wheel A, so that the sole on the sole placing seat rotates automatically, and the edge is cut under the cooperation of the cutter, achieving the automation of the device, reducing the labor force and greatly improving the production efficiency.

Description

Technical Field

[0001] This invention relates to the field of foamed rubber shoe sole preparation technology, specifically to a high-resilience foamed rubber shoe sole and its preparation method. Background Technology

[0002] High-resilience foam soles are outsoles made from closed-cell or open-cell foamed materials of natural or synthetic rubber. They possess excellent elasticity, tear resistance, aging resistance, corrosion resistance, and electrical insulation. High-resilience foam soles are beneficial because they provide cushioning and elasticity, which is good for the leg joints. In manufacturing high-resilience foam rubber soles, the high-resilience foam rubber is injected into corresponding molds and hot-pressed. To ensure fullness in all areas of the sole, slightly more high-resilience foam rubber is injected. This excess rubber forms a pre-existing edge between the two molds during hot pressing. After hot pressing, this pre-existing edge needs to be trimmed, completing the high-resilience foam rubber sole. This trimming of the pre-existing edge utilizes processing equipment.

[0003] Application number CN211065255U discloses a processing device for foamed rubber shoe soles. The shoe sole is fixed by threaded rods on both sides of the fixed frame, and then cut with a cutter. The shoe sole is rotated by a rotating block and bearing, and the distance is adjusted by a movable rod and a return spring to reach the cutting around the shoe sole. Compared with traditional processing methods, it is safer and can avoid worker injury. Moreover, the device has a simple overall structure, low cost, and is convenient for small and medium-sized shoe processing factories to use.

[0004] However, the device still has shortcomings. When using the device to cut the sole, it requires manual clamping and fixing of the sole, manual rotation of the sole for edge trimming, and finally manual removal of the processed sole for cutting the second sole. This process is entirely manual, with low automation, which not only increases labor costs but also greatly reduces the production efficiency of the sole. Summary of the Invention

[0005] Technical problems to be solved

[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a high-resilience foamed rubber shoe sole and its preparation method, which can effectively solve the problems of manual operation and low automation rate in the existing technology, which not only increases labor but also greatly reduces the production efficiency of shoe soles.

[0007] Technical solution

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] The present invention provides a high-resilience foamed rubber shoe sole, characterized in that it includes a shoe sole body, and a reserved edge is provided on the outer periphery of the shoe sole body. The reserved edge is located at the upper outer edge of the shoe sole, and a notch is provided on the reserved edge for subsequent edge cutting operations.

[0010] This invention provides an apparatus for manufacturing high-resilience foamed rubber shoe soles, comprising: a processing workbench, a cutting blade provided on the front wall of the rear end of the processing workbench, a motor fixedly connected to the top surface of the front side of the processing workbench, an intermittent rotating seat rotatably connected to the top surface of the front side of the processing workbench, a plurality of U-shaped frames fixedly connected to the top surface of the intermittent rotating seat in a ring structure, an automatic shoe sole fixing component rotatably connected to one end of the upper side of the U-shaped frame, the automatic shoe sole fixing component including a threaded rod, a fixing sleeve threadedly connected to the outer wall of the lower end of the threaded rod, the fixing sleeve serving to fix the high-resilience foamed rubber shoe sole;

[0011] A shoe sole placement seat is rotatably connected to the top surface of the lower end of the U-shaped frame. A transmission wheel A is fixedly connected to the lower end of the shoe sole placement seat. A drive wheel is fixedly connected to the output end of the motor. The transmission wheel A and the drive wheel are meshed and driven together. The drive wheel enables the high-resilience foamed rubber shoe sole on the shoe sole placement seat to rotate automatically, replacing manual rotation.

[0012] Furthermore, a guide rod is slidably fitted on the outer wall of the rear end of the cutter, and the outer wall of the guide rod is slidably fitted through the front wall of the rear end of the processing table. A spring A is sleeved on the outer wall of the guide rod.

[0013] Furthermore, a grooved wheel is fixedly connected to the lower outer wall of the intermittent rotating seat, a dial is movably engaged with the outer wall of the grooved wheel, and a driven wheel is fixedly connected to the lower outer wall of the dial, the driven wheel being meshed with the driving wheel for transmission.

[0014] Furthermore, a spring B is fixedly connected to the bottom surface of the shoe sole placement seat, and a stabilizing ring is fixedly connected to the lower end of the spring B. The bottom surface of the stabilizing ring is in frictional contact with the top surface of the lower end of the U-shaped frame. A clamping block is slidably fitted on the inner wall of the top surface of one side of the shoe sole placement seat. A spring C is fixedly connected to the outer wall of the lower end of the clamping block, and the other end of the spring C is fixedly connected to the inner wall of the shoe sole placement seat.

[0015] Furthermore, the outer wall of the upper end of the threaded rod extends through the bottom surface of the upper end of the U-shaped frame to the upper part and is rotatably connected to it. A transmission wheel B is fixedly connected to the outer wall of the upper end of the threaded rod. An arc-shaped rack A and an arc-shaped rack B are fixedly connected to the bottom surface of the upper end of the processing workbench. The transmission wheel B is movably meshed with the arc-shaped rack A and the arc-shaped rack B respectively.

[0016] Furthermore, one side of the outer wall of the fixed sleeve is slidably in contact with the outer wall of the U-shaped frame, and a pressure head is rotatably connected to the bottom surface of the fixed sleeve.

[0017] Furthermore, a discharge rod is slidably fitted on the inner wall of the upper end of the U-shaped frame, a tension spring is fixedly connected to the outer wall of the upper end of the discharge rod, the other end of the tension spring is fixedly connected to the inner wall of the upper end of the U-shaped frame, and a guide rod is fixedly connected to the other end of the discharge rod.

[0018] Furthermore, the processing worktable is connected and fixedly installed with a fixed adjustment seat at the intermittent rotating seat. The top surface of the fixed adjustment seat is provided with an adjustment groove. The lower outer wall of the guide rod extends through the U-shaped frame and the top surface of the intermittent rotating seat to the lower part and is slidably engaged with the inner wall of the adjustment groove.

[0019] A method for manufacturing high-resilience foamed rubber shoe soles includes injection molding hot pressing and edge trimming. The method is characterized in that, in the edge trimming step, the high-resilience foamed rubber shoe sole to be trimmed is placed on a shoe sole placement seat. After the shoe sole placement seat rotates to a position close to the cutter, the drive wheel on the motor drives the transmission wheel A connected to the shoe sole placement seat to rotate, so that while the shoe sole placement seat rotates, the movable cutter trims the edge excess material of the high-resilience foamed rubber shoe sole.

[0020] Beneficial effects

[0021] The technical solution provided by this invention has the following advantages compared with known public technologies:

[0022] 1. This invention features an automatic sole fixing component. Utilizing an arc-shaped rack A, as one sole holder moves to the cutting position, a transmission wheel engages with the arc-shaped rack A. This causes the threaded rod connected to the transmission wheel B to move the threaded fixing sleeve downwards, allowing the pressure head at the bottom to press against the sole for automatic fixing, replacing manual fixing. Simultaneously, when one sole holder moves to the cutting position, the drive wheel on the motor engages with the transmission wheel A, causing the sole on the sole holder to rotate. With the assistance of the cutting blade, the sole is trimmed, replacing manual rotation and automating the process. This reduces labor costs and significantly improves production efficiency.

[0023] 2. By setting up an unloading rod, after the sole is cut, when the sole placement seat moves the cut sole to the next position, the lower end of the guide rod connected to the unloading rod will move to the position where the adjustment groove protrudes. At this time, the guide rod is unrestricted, and the tension spring will drive the connected unloading rod to move quickly, so that the unloading rod can push the cut sole to be quickly unloaded from the sole placement seat, realizing automatic unloading without manual unloading, and further improving production efficiency. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention on the right side;

[0026] Figure 2 This is a schematic diagram of the high-resilience foamed rubber sole structure of the present invention before and after trimming.

[0027] Figure 3 This is a schematic diagram of the processing workbench structure of the present invention;

[0028] Figure 4 This is a schematic diagram of the cutting blade structure of the present invention on the right side;

[0029] Figure 5 This is a schematic diagram on the right side of the intermittent rotating seat and other structures of the present invention;

[0030] Figure 6 This is a partial sectional view of the shoe sole placement structure of the present invention.

[0031] Figure 7 This is a partial sectional view of the structure of the U-shaped frame and automatic shoe sole fixing component of the present invention;

[0032] The labels in the diagram represent: 1. Processing workbench; 2. Cutting blade; 3. Motor; 4. Intermittent rotating seat; 5. U-shaped frame; 6. Automatic sole fixing assembly; 7. Sole placement seat; 8. High-resilience foamed rubber sole; 101. Fixed adjustment seat; 102. Adjustment groove; 103. Arc rack A; 104. Arc rack B; 201. Guide rod; 202. Spring A; 301. Drive wheel; 401. Grooved wheel; 402. Actuating disc; 403. Driven wheel; 501. Unloading rod; 502. Tension spring; 503. Guide rod; 601. Threaded rod; 602. Fixing sleeve; 603. Transmission wheel B; 604. Pressure head; 701. Transmission wheel A; 702. Spring B; 703. Stabilizing ring; 704. Clamping block; 705. Spring C. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0034] The present invention will be further described below with reference to embodiments.

[0035] Example: Refer to Figure 1-7 A high-resilience foamed rubber sole includes a sole body 8, with a reserved edge on the outer periphery of the sole body 8. The reserved edge is located at the upper outer edge of the sole, and a notch is provided on the reserved edge for subsequent edge trimming operations.

[0036] A device for manufacturing high-resilience foamed rubber shoe soles includes: a processing workbench 1, a cutting blade 2 provided on the front wall of the rear end of the processing workbench 1, a motor 3 fixedly connected to the top surface of the front side of the processing workbench 1, an intermittent rotating seat 4 rotatably connected to the top surface of the front side of the processing workbench 1, a plurality of U-shaped frames 5 fixedly connected to the top surface of the intermittent rotating seat 4 in a ring structure, an automatic shoe sole fixing component 6 rotatably connected to one end of the upper side of the U-shaped frame 5, the automatic shoe sole fixing component 6 including a threaded rod 601, a fixing sleeve 602 threadedly connected to the outer wall of the lower end of the threaded rod 601, the fixing sleeve 602 serving to fix the high-resilience foamed rubber shoe sole 8;

[0037] A shoe sole placement seat 7 is rotatably connected to the top surface of the lower end of the U-shaped frame 5. A transmission wheel A701 is fixedly connected to the lower end of the shoe sole placement seat 7. A drive wheel 301 is fixedly connected to the output end of the motor 3. The transmission wheel A701 and the drive wheel 301 are meshed and driven together. The drive wheel 301 enables the high-resilience foamed rubber shoe sole 8 on the shoe sole placement seat 7 to rotate automatically, replacing manual rotation. The drive wheel 301 rotates 90 degrees, which drives the transmission wheel A701 to rotate one revolution.

[0038] A guide rod 201 is slidably fitted on the outer wall of the rear end of the cutter 2. The outer wall of the guide rod 201 is slidably fitted through the front wall of the rear end of the processing table 1. A spring A202 is sleeved on the outer wall of the guide rod 201. The spring A202 causes the cutter 2 to fit against the curved outer wall of the high-resilience foamed rubber sole 8.

[0039] A grooved wheel 401 is fixedly connected to the lower outer wall of the intermittent rotating seat 4. A dial 402 is movably engaged with the outer wall of the grooved wheel 401. A driven wheel 403 is fixedly connected to the lower outer wall of the dial 402. The driven wheel 403 meshes with the driving wheel 301 for transmission. The grooved wheel 401 can rotate 90 degrees when the dial 402 rotates one revolution.

[0040] A spring B702 is fixedly connected to the bottom surface of the shoe sole placement seat 7. A stabilizing ring 703 is fixedly connected to the lower end of the spring B702. The bottom surface of the stabilizing ring 703 is in frictional contact with the top surface of the lower end of the U-shaped frame 5. A clamping block 704 is slidably fitted onto the inner wall of one side of the top surface of the shoe sole placement seat 7. A spring C705 is fixedly connected to the outer wall of the lower end of the clamping block 704. The other end of the spring C705 is fixedly connected to the inner wall of the shoe sole placement seat 7. The stabilizing ring 703 increases the friction force under the action of the spring B702, so that the shoe sole placement seat 7 can remain stable when it is not rotating.

[0041] The upper outer wall of the threaded rod 601 extends through the upper bottom surface of the U-shaped frame 5 and is rotatably connected to it. A transmission wheel B603 is fixedly connected to the upper outer wall of the threaded rod 601. An arc-shaped rack A103 and an arc-shaped rack B104 are fixedly connected to the upper bottom surface of the processing worktable 1. The transmission wheel B603 is movably meshed with the arc-shaped rack A103 and the arc-shaped rack B104 respectively. The arc-shaped rack A103 and the arc-shaped rack B104 realize the downward and upward movement of the fixed sleeve 602.

[0042] The outer wall of the fixing sleeve 602 is in sliding contact with the outer wall of the U-shaped frame 5, and a pressure head 604 is rotatably connected to the bottom surface of the fixing sleeve 602. The pressure head 604 allows for rotation during clamping.

[0043] A discharge rod 501 is slidably fitted onto the inner wall of the upper end of the U-shaped frame 5. A tension spring 502 is fixedly connected to the outer wall of the upper end of the discharge rod 501. The other end of the tension spring 502 is fixedly connected to the inner wall of the upper end of the U-shaped frame 5. A guide rod 503 is fixedly connected to the other end of the discharge rod 501. The tension spring 502 enables the discharge rod 501 to pop out quickly.

[0044] The processing workbench 1 is fixedly connected to the intermittent rotating seat 4 and has a fixed adjustment seat 101. The top surface of the fixed adjustment seat 101 has an adjustment groove 102. The lower outer wall of the guide rod 503 extends through the U-shaped frame 5 and the top surface of the intermittent rotating seat 4 to the lower part and slides in cooperation with the inner wall of the adjustment groove 102. One end of the adjustment groove 102 is a ring structure and the other end is a V-shaped structure.

[0045] A method for manufacturing high-resilience foamed rubber shoe soles includes injection molding hot pressing and edge trimming. In the edge trimming step, the high-resilience foamed rubber shoe sole 8 to be trimmed is placed on the shoe sole placement seat 7. After the shoe sole placement seat 7 rotates to a position close to the cutter 2, the drive wheel 301 on the motor 3 drives the transmission wheel A701 connected to the shoe sole placement seat 7 to rotate, so that while the shoe sole placement seat 7 is rotating, it works with the movable cutter 2 to trim the edge excess material of the high-resilience foamed rubber shoe sole 8.

[0046] When processing the high-resilience foamed rubber sole 8, the high-resilience foamed rubber sole 8 formed by hot pressing in the mold is first taken out, and then the high-resilience foamed rubber sole 8 with reserved edge is placed on the sole placement seat 7. At this time, the clamping block 704 will limit the high-resilience foamed rubber sole 8 under the action of the spring C705. Then the motor 3 will drive the drive wheel 301 to rotate. At this time, the drive wheel 301 will drive the driven wheel 403 and the connected dial 402 to rotate, so that the dial 402 can drive the intermittent rotating seat 4 connected to the groove wheel 401 to rotate 90 degrees, thereby driving the sole placement seat 7 on which the high-resilience foamed rubber sole 8 is placed to rotate at the same angle.

[0047] As the sole placement seat 7 moves to the position of the cutter 2, the transmission wheel B603 engages with the arc-shaped rack A103, causing the threaded rod 601 connected to the transmission wheel B603 to drive the threaded fixed sleeve 602 to move downward, so that the bottom pressure head 604 presses on the high-resilience foam rubber sole 8 to achieve automatic fixation. Then, the cutter 2 will press against the high-resilience foam rubber sole 8 under the action of the spring A202. At this time, the drive wheel 301 on the motor 3 will engage with the transmission wheel A701, thereby realizing the rotation of the high-resilience foam rubber sole 8 on the sole placement seat 7. Under the action of the cutter 2, the edge is trimmed. When the intermittent rotating seat 4 continues to rotate, the trimmed high-resilience foam rubber sole 8 will rotate to the other side. At this time, the transmission wheel B603 on the threaded rod 601 will engage with the arc-shaped rack B104, thereby driving the threaded rod 601 to reverse, causing the fixed sleeve 602 to move upward, and the high-resilience foam rubber sole 8 will not be fixed.

[0048] At this time, the guide rod 503 will move to the V-shaped position of the adjustment groove 102 on the fixed adjustment seat 101. At this time, the guide rod 503 is unrestricted, and the tension spring 502 will drive the connected unloading rod 501 to pop out quickly, thereby pushing the trimmed high-resilience foamed rubber shoe sole 8 off the shoe sole placement seat 7 to achieve rapid automatic unloading.

[0049] Then, as the intermittent rotating seat 4 continues to rotate, the lower end of the guide rod 503 will move back to the annular position of the adjusting groove 102, thereby resetting the unloading rod 501.

[0050] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A manufacturing apparatus for high-resilience foamed rubber shoe soles, comprising: A processing workbench (1) is characterized in that a cutting blade (2) is provided on the front wall of the rear end of the processing workbench (1), a motor (3) is fixedly connected to the top surface of the front side of the processing workbench (1), an intermittent rotating seat (4) is rotatably connected to the top surface of the front side of the processing workbench (1), and multiple U-shaped frames (5) are fixedly connected to the top surface of the intermittent rotating seat (4) in a ring structure. An automatic shoe sole fixing component (6) is rotatably connected to one end of the upper side of the U-shaped frame (5). The automatic shoe sole fixing component (6) includes a threaded rod (601), and a fixing sleeve (602) is threadedly connected to the outer wall of the lower end of the threaded rod (601). The fixing sleeve (602) serves to fix the high-resilience foamed rubber shoe sole (8). The U-shaped frame (5) is rotatably connected to a shoe sole placement seat (7) on its lower top surface. A transmission wheel A (701) is fixedly connected to the lower end of the shoe sole placement seat (7). A drive wheel (301) is fixedly connected to the output end of the motor (3). The transmission wheel A (701) and the drive wheel (301) are meshed and driven together. The drive wheel (301) enables the high-resilience foamed rubber shoe sole (8) on the shoe sole placement seat (7) to rotate automatically, replacing manual rotation. A grooved wheel (401) is fixedly connected to the lower outer wall of the intermittent rotating seat (4). A dial (402) is movably engaged with the outer wall of the grooved wheel (401). The lower outer wall of the actuating disc (402) is fixedly connected to a driven wheel (403), which meshes with the driving wheel (301) for transmission. The upper outer wall of the threaded rod (601) extends through the upper bottom surface of the U-shaped frame (5) and is rotatably connected to it. The upper outer wall of the threaded rod (601) is fixedly connected to a transmission wheel B (603). The upper bottom surface of the processing worktable (1) is fixedly connected to an arc-shaped rack A (103) and an arc-shaped rack B (104). The transmission wheel B (603) is movably meshed with the arc-shaped rack A (103) and the arc-shaped rack B (104) respectively. The outer wall of one side of the fixed sleeve (602) is slidably contacted with the outer wall of the U-shaped frame (5). The bottom surface of the fixed sleeve (602) is rotatably connected to the pressure head (604). The inner wall of the upper end of the U-shaped frame (5) is slidably fitted with the unloading rod (501). The outer wall of the upper end of the unloading rod (501) is connected and fixedly fitted with the tension spring (502). The other end of the tension spring (502) is connected and fixedly fitted with the inner wall of the upper end of the U-shaped frame (5). The other end of the unloading rod (501) is connected and fixedly fitted with the guide rod (503). The processing workbench (1) is located at the intermittent rotating seat (4) and is connected and fixedly fitted with the fixed adjustment seat (101). The top surface of the fixed adjustment seat (101) is provided with the adjustment groove (102). The lower outer wall of the guide rod (503) passes through the top surface of the U-shaped frame (5) and the intermittent rotating seat (4) and extends to the lower part, where it is slidably fitted with the inner wall of the adjustment groove (102).

2. The equipment for manufacturing high-resilience foamed rubber shoe soles according to claim 1, characterized in that, The outer wall of the cutting blade (2) is slidably fitted with a guide rod (201). The outer wall of the guide rod (201) is slidably fitted through the front wall of the rear end of the processing table (1). A spring A (202) is sleeved on the outer wall of the guide rod (201).

3. The equipment for manufacturing high-resilience foamed rubber shoe soles according to claim 2, characterized in that, A spring B (702) is fixedly connected to the bottom surface of the shoe sole placement seat (7). A stabilizing ring (703) is fixedly connected to the lower end of the spring B (702). The bottom surface of the stabilizing ring (703) is in frictional contact with the top surface of the lower end of the U-shaped frame (5). A clamping block (704) is slidably fitted on the inner wall of the top surface of one side of the shoe sole placement seat (7). A spring C (705) is fixedly connected to the outer wall of the lower end of the clamping block (704). The other end of the spring C (705) is fixedly connected to the inner wall of the shoe sole placement seat (7).

4. A method for manufacturing a high-resilience foamed rubber shoe sole as described in claim 3, comprising injection molding hot pressing and edge trimming, characterized in that, In the edge trimming step, the high-resilience foamed rubber sole (8) to be trimmed is placed on the sole placement seat (7). After the sole placement seat (7) rotates to a position close to the cutter (2), the drive wheel (301) on the motor (3) will drive the transmission wheel A (701) connected to the sole placement seat (7) to rotate, so that while the sole placement seat (7) rotates, it works with the movable cutter (2) to trim the edge material of the high-resilience foamed rubber sole (8).

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