Demoulding mechanism for rubber soles

By designing a demolding mechanism for rubber shoe sole production that links the top material demolding mechanism with the top pin, the problem of low efficiency in traditional manual prying is solved, realizing an automated and rapid demolding process and ensuring production continuity.

CN224296384UActive Publication Date: 2026-05-29TONGLING DINGHONG KNITTING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TONGLING DINGHONG KNITTING CO LTD
Filing Date
2025-06-23
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Traditional methods of demolding rubber shoe soles mainly rely on manual prying, which is inefficient and affects production continuity.

Method used

A demolding mechanism for rubber shoe sole production was designed. It adopts a top-ejector demolding mechanism linked with a top pin. When the punch is driven to rise by a hydraulic cylinder, the top pin disengages from the pressure plate. A spring pushes the top block to eject the shoe sole. Combined with a lubrication component to reduce friction, automated demolding is achieved.

Benefits of technology

It achieves efficient and automatic demolding of rubber shoe soles. The demolding process is fast and requires no manual intervention, ensuring precise travel of the ejector block, reducing friction, and making it suitable for continuous use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of demolding mechanisms for rubber sole production, it is related to rubber sole production field, including base, the upper end middle part of base is fixedly connected with shoe mould, the inside of shoe mould is provided with material pushing demolding mechanism, the upper end edge of base is fixedly connected with two columns, and two columns are symmetrically arranged, the top of two column is fixedly connected with top plate, the upper end middle part of top plate is fixedly installed with hydraulic cylinder. Through the linkage design of material pushing demolding mechanism and ejector pin, the efficient automatic demolding of rubber sole is realized, when hydraulic cylinder drives the rising of male die, ejector pin is synchronized with pressing plate, spring one promotes guiding sleeve to move up, drives material pushing block to eject sole from shoe mould, demolding process is fast and does not need manual intervention, the cooperation of baffle and stroke limit block ensures the stroke accuracy of material pushing block, avoid excessive ejection to cause sole deformation.
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Description

Technical Field

[0001] This utility model relates to the field of rubber shoe sole production, and in particular to a demolding mechanism for rubber shoe sole production. Background Technology

[0002] In the production of rubber shoe soles, mold pressing is typically used. A search revealed a utility model patent with authorization announcement number CN215472794U, which discloses a mold for producing rubber shoe sole products, relating to the field of mold processing technology. The mold includes a processing table with a mold groove on its upper surface. Connecting plates are fixedly mounted on both sides of the processing table, and support seats are fixedly mounted on the top of each connecting plate. Guide rods are fixedly mounted on the top of each support seat, and support plates are slidably mounted on the surfaces of the guide rods. A movable mold base is fixedly mounted on the lower surface of the support plates.

[0003] After being vulcanized at high temperatures, rubber raw materials are formed into shoe soles within a mold. These soles then need to be removed from the mold for demolding. Traditional demolding methods rely mainly on manual prying, which is inefficient and affects the continuity of sole production. Therefore, improvements to existing technology are necessary. Utility Model Content

[0004] This invention provides a demolding mechanism for rubber shoe sole production, which solves the technical problem that traditional demolding methods mainly rely on manual prying, resulting in low efficiency and affecting the continuity of shoe sole production.

[0005] To solve the above-mentioned technical problems, this utility model provides a demolding mechanism for rubber shoe sole production, including a base, a shoe mold fixedly connected to the upper middle part of the base, a ejector demolding mechanism inside the shoe mold, two columns fixedly connected to the upper edge of the base, the two columns being symmetrically arranged, a top plate fixedly connected to the top of the two columns, a hydraulic cylinder fixedly installed at the upper middle part of the top plate, the telescopic shaft of the hydraulic cylinder passing through the top plate and slidably connected to the top plate, a push seat fixedly connected to the end of the telescopic shaft, a punch fixedly connected to the lower middle part of the push seat, the position of the punch corresponding to the position of the shoe mold, and a top pin fixedly connected to the lower edge of the push seat.

[0006] Preferably, a guide plate is fixedly connected to the side of the push base, and the guide plate is slidably sleeved on the outside of the column. Through the arrangement of the guide plate, in cooperation with the column, it guides the lifting and lowering of the push base and the punch.

[0007] Preferably, the ejector demolding mechanism includes a guide seat fixedly connected to the bottom inner side of the shoe mold. A guide sleeve is slidably sleeved on the outside of the guide seat. An ejector block is fixedly connected to the upper middle part of the guide sleeve. The ejector block penetrates the shoe mold and is slidably connected to the shoe mold. Two pressure plates are fixedly connected to the side of the guide sleeve. The pressure plates penetrate the shoe mold and are slidably connected to the shoe mold. The positions of the pressure plates correspond to the positions of the ejector pins. A pressure pin is connected to the top inner side of the guide sleeve. A through hole is opened at the top of the guide seat, and the position of the through hole corresponds to the pressure pin. A sponge block and an inclined seat are slidably connected inside the guide seat, and the sponge block and the inclined seat are in contact with each other. As the ejector pin moves downward with the pusher seat, it can push down the pressure plate, thereby driving the ejector block to move downward. When the punch and the shoe mold separate, the ejector block will reset under the action of the spring and eject the rubber sole inside the shoe mold, thereby facilitating the demolding of the sole.

[0008] Preferably, a spring is fixedly connected to the upper end of the pressure plate, and the top of the spring is fixedly connected to the inner surface of the shoe mold. The elastic force of the spring can be applied to the guide sleeve through the pressure plate.

[0009] Preferably, a stop block is fixedly connected to the side of the guide sleeve and below the pressure plate, and a travel limiting block is fixedly connected to the inner bottom of the shoe mold. The position of the travel limiting block corresponds to the position of the stop block. The distance between the stop block and the travel limiting block is the same as the height of the top material block extending out of the shoe mold, which serves to limit the travel of the top material block.

[0010] Preferably, the guide seat has an oil outlet hole on its side, and the position of the oil outlet hole corresponds to the position of the sponge block. The oil outlet hole facilitates the addition of lubricating oil to the sliding connection between the guide seat and the guide sleeve.

[0011] Preferably, a guide block is fixedly connected to the bottom of the inclined seat, the guide block is slidably connected to the guide seat, and a guide rod is fixedly connected inside the guide seat. The guide rod passes through the guide block and is slidably connected to the guide block. A second spring is sleeved on the outer side of the guide rod. One end of the second spring is fixedly connected to the guide block, and the other end of the second spring is fixedly connected to the inner surface of the guide seat. The arrangement of the guide block, guide rod, and second spring provides auxiliary repositioning for the inclined seat.

[0012] Compared with related technologies, the demolding mechanism for rubber shoe sole production provided by this utility model has the following beneficial effects:

[0013] This utility model provides a demolding mechanism for rubber shoe sole production. Through the linkage design of the ejector demolding mechanism and the ejector pin, efficient automatic demolding of rubber shoe soles is achieved. When the hydraulic cylinder drives the punch to rise, the ejector pin simultaneously disengages from the pressure plate. A spring pushes the guide sleeve to move upward, driving the ejector block to eject the shoe sole out of the shoe mold. The demolding process is fast and requires no manual intervention. The cooperation between the stop block and the stroke limit block ensures the accurate stroke of the ejector block, avoiding excessive ejection that could cause deformation of the shoe sole.

[0014] This utility model provides a demolding mechanism for rubber shoe sole production. By setting a set of lubrication components in the ejector demolding mechanism, when relative sliding occurs between the guide sleeve and the guide seat, the pressure pin on the guide sleeve is inserted into the guide seat through the through hole, and squeezes the sponge block through the cooperation with the inclined seat, and releases lubricating oil. The lubricating oil is added to the sliding connection between the guide sleeve and the guide seat through the oil outlet hole. This can reduce the friction between the two, making the ejector demolding mechanism suitable for continuous use. Attached Figure Description

[0015] Figure 1 The overall three-dimensional structure of this utility model Figure 1 ;

[0016] Figure 2 The overall three-dimensional structure of this utility model Figure 2 ;

[0017] Figure 3 This utility model Figure 1 A front sectional view;

[0018] Figure 4 This utility model Figure 3 Enlarged view of the shoe mold structure;

[0019] Figure 5 This utility model Figure 4 Enlarged view of point A in the image.

[0020] The following are the labels in the diagram: 1. Base; 2. Shoe mold; 3. Ejector and demolding mechanism; 4. Column; 5. Top plate; 6. Hydraulic cylinder; 7. Push seat; 8. Punch; 9. Ejector pin; 10. Guide plate; 31. Guide seat; 32. Guide sleeve; 33. Ejector block; 34. Pressure plate; 35. Spring 1; 36. Stop block; 37. Stroke limit block; 38. Pressure pin; 39. Through hole; 310. Sponge block; 311. Inclined seat; 312. Oil outlet hole; 313. Guide block; 314. Guide rod; 315. Spring 2. Detailed Implementation

[0021] Please see Figure 1 , Figure 2 , Figure 3A demolding mechanism for rubber shoe sole production includes a base 1. A shoe mold 2 is fixedly connected to the upper center of the base 1. Two uprights 4 are fixedly connected to the upper edge of the base 1, and the two uprights 4 are symmetrically arranged. A top plate 5 is fixedly connected to the top of the two uprights 4. A hydraulic cylinder 6 is fixedly installed at the upper center of the top plate 5. The telescopic shaft of the hydraulic cylinder 6 passes through the top plate 5 and is slidably connected to the top plate 5. A push seat 7 is fixedly connected to the end of the telescopic shaft. A punch 8 is fixedly connected to the lower center of the push seat 7. The position of the punch 8 corresponds to the position of the shoe mold 2. A top pin 9 is fixedly connected to the lower edge of the push seat 7. A guide plate 10 is fixedly connected to the side of the push seat 7 and is slidably sleeved on the outside of the uprights 4. Through the setting of the guide plate 10, it cooperates with the uprights 4 to guide the lifting and lowering of the push seat 7 and the punch 8.

[0022] Please see Figure 3 , Figure 4 The shoe mold 2 is internally equipped with an ejector mechanism 3. The ejector mechanism 3 includes a guide seat 31 fixedly connected to the bottom inner side of the shoe mold 2. A guide sleeve 32 is slidably sleeved on the outside of the guide seat 31. An ejector block 33 is fixedly connected to the upper middle part of the guide sleeve 32. The ejector block 33 penetrates the shoe mold 2 and is slidably connected to the shoe mold 2. Two pressure plates 34 are fixedly connected to the side of the guide sleeve 32. The pressure plates 34 penetrate the shoe mold 2 and are slidably connected to the shoe mold 2. The position of the pressure plates 34 corresponds to the position of the ejector pin 9. A spring 35 is fixedly connected to the upper end of the pressure plate 34. The top of the spring 35 is fixedly connected to the inner surface of the shoe mold 2. The elastic force of the spring 35 can act on the guide sleeve 32 through the pressure plates 34. As the pusher pin 9 moves downward along with the pusher 7, it can press down the pressure plate 34, thereby causing the ejector block 33 to move downward. When the punch 8 and the shoe mold 2 separate, the ejector block 33 will reset under the action of the spring 35 and eject the rubber sole inside the shoe mold 2, thereby facilitating the demolding of the sole.

[0023] Please see Figure 4 , Figure 5A pressure pin 38 is connected to the top inner side of the guide sleeve 32. A through hole 39 is opened on the top of the guide seat 31, and the position of the through hole 39 corresponds to the pressure pin 38. A sponge block 310 and an inclined seat 311 are slidably connected inside the guide seat 31, and the sponge block 310 and the inclined seat 311 are in contact with each other. A stop block 36 is fixedly connected to the side of the guide sleeve 32 and below the pressure plate 34. A travel limit block 37 is fixedly connected to the bottom inner side of the shoe mold 2, and the position of the travel limit block 37 corresponds to the position of the stop block 36. The distance between the stop block 36 and the travel limit block 37 is the same as the height of the ejector block 33 extending out of the shoe mold 2, which has the function of limiting the travel of the ejector block 33. An oil outlet hole 312 is opened on the side of the guide seat 31, and the position of the oil outlet hole 312 corresponds to the position of the sponge block 310. The oil outlet hole 312 facilitates the addition of lubricating oil to the sliding connection between the guide seat 31 and the guide sleeve 32. A guide block 313 is fixedly connected to the bottom of the inclined seat 311. The guide block 313 is slidably connected to the guide seat 31. A guide rod 314 is fixedly connected inside the guide seat 31. The guide rod 314 passes through the guide block 313 and is slidably connected to the guide block 313. A second spring 315 is sleeved on the outside of the guide rod 314. One end of the second spring 315 is fixedly connected to the guide block 313, and the other end of the second spring 315 is fixedly connected to the inner surface of the guide seat 31. The arrangement of the guide block 313, the guide rod 314, and the second spring 315 provides an auxiliary repositioning function for the inclined seat 311.

[0024] Working principle: In use, the rubber blank is placed on top of the shoe mold 2. Then, the hydraulic cylinder 6 pushes the push seat 7 downward, which in turn moves the punch 8 and the ejector pin 9 downward. The ejector pin 9 then presses down on the pressure plate 34, causing the pressure plate 34 to move the guide sleeve 32 outside the guide seat 31. At the same time, it moves the ejector block 33 on the guide sleeve 32 downward. Simultaneously, the punch 8, together with the shoe mold 2, punches the rubber blank, and the punched out sole is placed inside the shoe mold 2. When the hydraulic cylinder 6 drives the punch 8 to rise, the ejector pin 9 simultaneously disengages from the pressure plate 34, and the spring 35 pushes the guide sleeve... 32 moves upward, driving the ejector block 33 to eject the sole out of the shoe mold 2. The demolding process is fast and requires no manual intervention. In addition, when relative sliding occurs between the guide sleeve 32 and the guide seat 31, the pressure pin 38 on the guide sleeve 32 is inserted into the guide seat 31 through the through hole 39, and squeezes the sponge block 310 through the cooperation with the inclined seat 311, and releases lubricating oil. The lubricating oil is added to the sliding connection between the guide sleeve 32 and the guide seat 31 through the oil outlet 312. This can reduce the friction between the two, making the ejector demolding mechanism 3 suitable for continuous use.

Claims

1. A demolding mechanism for producing rubber shoe soles, comprising a base (1), characterized in that, A shoe mold (2) is fixedly connected to the upper middle part of the base (1). The shoe mold (2) is provided with a material ejection mechanism (3). Two columns (4) are fixedly connected to the upper edge of the base (1), and the two columns (4) are symmetrically arranged. The top of the two columns (4) is fixedly connected to a top plate (5). A hydraulic cylinder (6) is fixedly installed in the upper middle part of the top plate (5). The telescopic shaft of the hydraulic cylinder (6) passes through the top plate (5) and is slidably connected to the top plate (5). A push seat (7) is fixedly connected to the end of the telescopic shaft. A punch (8) is fixedly connected to the lower middle part of the push seat (7). The position of the punch (8) corresponds to the position of the shoe mold (2). A top pin (9) is fixedly connected to the lower edge of the push seat (7).

2. The demolding mechanism for rubber shoe sole production according to claim 1, characterized in that, The push base (7) is fixedly connected to a guide plate (10) on its side, and the guide plate (10) is slidably sleeved on the outside of the column (4).

3. The demolding mechanism for rubber shoe sole production according to claim 1, characterized in that, The ejector mechanism (3) includes a guide seat (31) fixedly connected to the bottom inner side of the shoe mold (2). A guide sleeve (32) is slidably sleeved on the outside of the guide seat (31). An ejector block (33) is fixedly connected to the middle of the upper end of the guide sleeve (32). The ejector block (33) penetrates the shoe mold (2) and is slidably connected to the shoe mold (2). Two pressure plates (34) are fixedly connected to the side of the guide sleeve (32). The pressure plates (34) penetrate the shoe mold (2) and are slidably connected to the shoe mold (2). The shoe mold (2) is slidably connected. The position of the pressure plate (34) corresponds to the position of the top pin (9). The inner top of the guide sleeve (32) is connected to the pressure pin (38). The top of the guide seat (31) is provided with a through hole (39), and the position of the through hole (39) corresponds to the pressure pin (38). The guide seat (31) is slidably connected with a sponge block (310) and a slope seat (311), and the sponge block (310) and the slope seat (311) are in contact with each other.

4. The demolding mechanism for rubber shoe sole production according to claim 3, characterized in that, The upper end of the pressure plate (34) is fixedly connected to a spring (35), and the top of the spring (35) is fixedly connected to the inner surface of the shoe mold (2).

5. The demolding mechanism for rubber shoe sole production according to claim 3, characterized in that, A stop block (36) is fixedly connected to the side of the guide sleeve (32) and below the pressure plate (34), and a travel limit block (37) is fixedly connected to the bottom inner side of the shoe mold (2). The position of the travel limit block (37) corresponds to the position of the stop block (36).

6. The demolding mechanism for rubber shoe sole production according to claim 3, characterized in that, The guide seat (31) has an oil outlet hole (312) on its side, and the position of the oil outlet hole (312) corresponds to the position of the sponge block (310).

7. The demolding mechanism for rubber shoe sole production according to claim 3, characterized in that, A guide block (313) is fixedly connected to the bottom of the inclined seat (311). The guide block (313) is slidably connected to the guide seat (31). A guide rod (314) is fixedly connected inside the guide seat (31). The guide rod (314) passes through the guide block (313) and is slidably connected to the guide block (313). A second spring (315) is sleeved on the outside of the guide rod (314). One end of the second spring (315) is fixedly connected to the guide block (313), and the other end of the second spring (315) is fixedly connected to the inner surface of the guide seat (31).