Die changing structure for toe cap setting machine

Abstract

The utility model discloses a die changing structure for a toe cap setting machine, which is characterized in that when the die changing structure works, two ends of a U-shaped die are driven by a positioning cylinder to be close to each other so as to surround and fix a workpiece needing to be set, and execution ends of a plurality of fixing cylinders are propped against the outer wall of the U-shaped die to force the inner wall of the U-shaped die to be tightly attached to the workpiece so as to ensure the setting effect. And the U-shaped mold can be quickly mounted or dismounted through the insertion matching of the bolt and the insertion hole, so that the mold changing speed is increased, the production efficiency is improved, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of shoe-making equipment, in particular to a mold changing structure used for a toe molding machine. Background Art

[0002] A toe molding machine is a device used to mold the toe of a shoe during the production and processing of shoes. During the molding process, the toe is put on the shoe last, and the external mold cooperates with the shoe last to perform bidirectional extrusion and maintain the molding for a period of time. However, when the existing toe molding machine is in use, the molds on the molding machine are mostly fixedly installed, which makes it difficult to disassemble and replace the molds. Since different toes require different molds, a lot of time is required to replace the molds during the production process, which reduces production efficiency and increases production costs. Summary of the invention

[0003] The main purpose of the utility model is to provide a mold changing structure for a toe molding machine, aiming to increase the mold changing speed, thereby improving production efficiency and reducing production costs.

[0004] To achieve the above purpose, the utility model proposes a mold changing structure for a toe molding machine, comprising a U-shaped mold made of elastic material, a plurality of fixed cylinders and two positioning cylinders.

[0005] The execution ends of the two positioning cylinders are respectively connected to the two ends of the U-shaped mold, and are used to drive the two ends of the U-shaped mold to move toward or away from each other;

[0006] A plurality of the fixed cylinders are spaced and distributed outside the U-shaped mold, and the actuating ends of the fixed cylinders can move between positions abutting against and away from the outer wall of the U-shaped mold;

[0007] A connector with a socket is provided on the outer side of the U-shaped mold at a position corresponding to the end portion, and the actuator end of the positioning cylinder is provided with a pin that can be inserted into the socket. The end of the U-shaped mold can be detachably assembled with the actuator end of the positioning cylinder through the cooperation of the pin and the socket.

[0008] Preferably, the fixing cylinder and the positioning cylinder are each locked by bolts or fixed at the to-be-installed position by a snap-fit ​​structure.

[0009] Preferably, a first tension spring is further provided, one end of which is connected to the cylinder body of the fixed cylinder, and the other end of which is connected to the actuating end of the fixed cylinder, for applying an elastic force to the actuating end of the fixed cylinder to move away from the U-shaped mold.

[0010] Preferably, a second tension spring is further provided, one end of which is connected to the cylinder body of the positioning cylinder, and the other end of which is connected to the actuator end of the positioning cylinder, for applying an elastic force to the actuator end of the positioning cylinder to move away from the U-shaped mold.

[0011] Preferably, the actuator end of the positioning cylinder includes a first block, a second block and the latch, the first block is fixedly connected to the piston rod of the positioning cylinder, the first block is provided with a strip-shaped slot, both ends of the slot extend to pass through the first block, and the slot is also provided with a front opening with a limiting step, the second block is provided with a support member with a limiting portion, the support member can enter the slot through the end opening of the slot, and the limiting portion can cooperate with the limiting step to prevent the support member from detaching from the slot from the front opening of the slot, and the latch can be detachably installed on the second block.

[0012] Preferably, the second block is vertically penetrated by a connecting hole, the latch is inserted into the connecting hole and can pivot relative to the connecting hole, the upper and lower ends of the latch are exposed, a clamping plate is fixedly sleeved on the lower end of the latch, and a limiting groove is provided on the second block corresponding to the position of the clamping plate, the clamping plate can move between a position of partially entering the limiting groove and a position of exiting the limiting groove as the latch pivots, and after the clamping plate partially enters the limiting groove, it can support the latch to prevent the latch from detaching from the connecting hole.

[0013] Preferably, the peripheral wall of the clamping plate is formed with an arc surface and a plane surface, and the latch can pivot relative to the connecting hole between a position where the arc surface enters the limiting groove and a position where the plane surface is opposite to the opening of the limiting groove.

[0014] Preferably, a locking piece is further provided. After the arc surface enters the limiting groove, the locking piece is detachably locked to the second block by a screw and is kept against the plane to limit the pivoting of the latch.

[0015] The technical solution of the utility model provides a positioning cylinder at a position corresponding to the two ends of the U-shaped mold on the outer side of the U-shaped mold, a connecting piece with a socket is provided at the end of the U-shaped mold, and a pin is provided at the executing end of the positioning cylinder. The end of the U-shaped mold and the executing end of the positioning cylinder are detachably connected through the plug-in cooperation of the pin and the socket, and the two ends of the U-shaped mold can be driven to approach or move away from each other through the positioning cylinders at the two end positions of the U-shaped mold. A plurality of fixed cylinders are also provided on the outer side of the U-shaped mold, and the executing ends of the fixed cylinders can move between positions that are against and away from the outer wall of the U-shaped mold. When working, the two ends of the U-shaped mold are driven to approach each other through the positioning cylinder to surround and fix the workpiece to be shaped, and then the executing ends of the plurality of fixed cylinders are against the outer wall of the U-shaped mold to force the inner wall of the U-shaped mold to remain in close contact with the workpiece to ensure the shaping effect. The plug-in cooperation of the pin and the socket can quickly install or disassemble the U-shaped mold, improve the mold changing speed, thereby improving production efficiency and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 This is a partial exploded diagram of the positioning cylinder. DETAILED DESCRIPTION

[0018] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial...), then the directional indication is only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0020] In addition, if there are descriptions involving "first" or "second" etc. in the embodiments of the utility model, the descriptions of "first" or "second" etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0021] The utility model provides a mold changing structure for a toe molding machine.

[0022] In the embodiment of the utility model, Figures 1 to 2 As shown, the mold changing structure for the toe molding machine includes a U-shaped mold 1 made of elastic material, a plurality of fixed cylinders 2 and two positioning cylinders 3.

[0023] The execution ends of the two positioning cylinders 3 are respectively connected to the two ends of the U-shaped mold 1, so as to drive the two ends of the U-shaped mold 1 to move toward or away from each other;

[0024] A plurality of the fixed cylinders 2 are distributed at intervals outside the U-shaped mold 1, and the actuating ends of the fixed cylinders 2 can move between positions against and away from the outer wall of the U-shaped mold 1;

[0025] A connector 11 having a socket 12 is provided at a position corresponding to the end of the outer side of the U-shaped mold 1, and the actuator end of the positioning cylinder 3 is provided with a pin 31 that can be inserted into the socket 12. The end of the U-shaped mold 1 is detachably assembled with the actuator end of the positioning cylinder 3 through the cooperation of the pin 31 and the socket 12.

[0026] Specifically, the fixing cylinder 2 and the positioning cylinder 3 are each locked by bolts or fixed at the position to be installed by a snap-fit ​​structure.

[0027] Specifically, a first tension spring 21 is provided, one end of which is connected to the cylinder body of the fixed cylinder 2 and the other end is connected to the execution end of the fixed cylinder 2, for applying an elastic force to the execution end of the fixed cylinder 2 to move away from the U-shaped mold 1.

[0028] Specifically, a second tension spring 32 is provided, one end of which is connected to the cylinder body of the positioning cylinder 3 , and the other end is connected to the execution end of the positioning cylinder 3 , for applying an elastic force to the execution end of the positioning cylinder 3 to move away from the U-shaped mold 1 .

[0029] Specifically, the execution end of the positioning cylinder 3 includes a first block 33, a second block 34 and the latch 31. The first block 33 is fixedly connected to the piston rod of the positioning cylinder 3. The first block 33 is provided with a strip-shaped slot 331. The two ends of the slot 331 extend to penetrate the first block 33, and the slot 331 is also provided with a front opening with a limiting step 332. The second block 34 is provided with a support member 341 with a limiting portion 342. The support member 341 can enter the slot 331 through the end opening of the slot 331, and the limiting portion 342 can cooperate with the limiting step 332 to prevent the support member 341 from detaching from the slot 331 from the front opening of the slot 331. The latch 31 can be detachably installed on the second block 34.

[0030] Specifically, the second block 34 is vertically penetrated by a connecting hole 343, the latch 31 is inserted into the connecting hole 343 and can pivot relative to the connecting hole 343, the upper and lower ends of the latch 31 are exposed, a clamping plate 311 is fixedly sleeved on the lower end of the latch 31, and a limiting groove 344 is provided on the second block 34 corresponding to the position of the clamping plate 311, the clamping plate 311 can move between a position of partially entering the limiting groove 344 and a position of exiting as the latch 31 pivots, and after the clamping plate 311 partially enters the limiting groove 344, it can support the latch 31 to prevent the latch 31 from escaping from the connecting hole 343.

[0031] Specifically, the peripheral wall of the clamping plate 311 is formed with an arc surface 312 and a plane 313 , and the latch 31 can pivot relative to the connecting hole 343 between a position where the arc surface 312 enters the limiting groove 344 and a position where the plane 313 is opposite to the opening of the limiting groove 344 .

[0032] Specifically, a locking member 35 is further provided. After the arc surface 312 enters the limiting groove 344 , the locking member 35 is detachably locked to the second block 34 by a screw and is kept against the plane 313 to limit the pivoting of the latch 31 .

[0033] Specifically, the fixed cylinder 2 and the positioning cylinder 3 have the same structure, and the difference between the fixed cylinder 2 and the positioning cylinder 3 is that the positioning cylinder 3 is provided with the latch 31 , while the fixed cylinder 2 is not provided with the latch 31 .

[0034] The technical solution of the utility model provides a positioning cylinder at a position corresponding to the two ends of the U-shaped mold on the outer side of the U-shaped mold, a connecting piece with a socket is provided at the end of the U-shaped mold, and a pin is provided at the executing end of the positioning cylinder. The end of the U-shaped mold and the executing end of the positioning cylinder are detachably connected through the plug-in cooperation of the pin and the socket, and the two ends of the U-shaped mold can be driven to approach or move away from each other through the positioning cylinders at the two end positions of the U-shaped mold. A plurality of fixed cylinders are also provided on the outer side of the U-shaped mold, and the executing ends of the fixed cylinders can move between positions that are against and away from the outer wall of the U-shaped mold. When working, the two ends of the U-shaped mold are driven to approach each other through the positioning cylinder to surround and fix the workpiece to be shaped, and then the executing ends of the plurality of fixed cylinders are against the outer wall of the U-shaped mold to force the inner wall of the U-shaped mold to remain in close contact with the workpiece to ensure the shaping effect. The plug-in cooperation of the pin and the socket can quickly install or disassemble the U-shaped mold, improve the mold changing speed, thereby improving production efficiency and reducing production costs.

[0035] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A mold changing structure for a toe molding machine, characterized in that: It comprises a U-shaped mold (1) made of elastic material, a plurality of fixed cylinders (2) and two positioning cylinders (3). The execution ends of the two positioning cylinders (3) are respectively connected to the two ends of the U-shaped mold (1) to drive the two ends of the U-shaped mold (1) to move towards or away from each other; A plurality of the fixed cylinders (2) are distributed at intervals outside the U-shaped mold (1), and the actuating ends of the fixed cylinders (2) can move between positions abutting against and away from the outer wall of the U-shaped mold (1); A connecting piece (11) having a socket (12) is provided at a position on the outer side of the U-shaped mold (1) corresponding to a position close to the end portion, and a latch (31) which can be inserted into the socket (12) is provided at the execution end of the positioning cylinder (3). The end portion of the U-shaped mold (1) can be detachably assembled with the execution end of the positioning cylinder (3) through the cooperation of the latch (31) and the socket (12).

2. The mold changing structure for a toe molding machine according to claim 1, characterized in that: The fixing cylinder (2) and the positioning cylinder (3) are each locked by bolts or fixed at a position to be installed by a snap-fit ​​structure.

3. The mold changing structure for a toe molding machine according to claim 1, characterized in that: A first tension spring (21) is also provided, one end of the first tension spring (21) being connected to the cylinder body of the fixed cylinder (2), and the other end of the first tension spring (21) being connected to the actuating end of the fixed cylinder (2), and being used to apply an elastic force to the actuating end of the fixed cylinder (2) to move in a direction away from the U-shaped mold (1).

4. The mold changing structure for a toe molding machine according to claim 1, characterized in that: A second tension spring (32) is also provided, one end of the second tension spring (32) being connected to the cylinder body of the positioning cylinder (3) and the other end being connected to the actuating end of the positioning cylinder (3), and being used to apply an elastic force to the actuating end of the positioning cylinder (3) to move in a direction away from the U-shaped mold (1).

5. The mold changing structure for a toe molding machine according to claim 1, characterized in that: The execution end of the positioning cylinder (3) comprises a first block (33), a second block (34) and the latch (31); the first block (33) is fixedly connected to the piston rod of the positioning cylinder (3); the first block (33) is provided with a strip-shaped slot (331); both ends of the slot (331) extend to penetrate the first block (33); the slot (331) is also provided with a front opening having a limiting step (332); the second block (34) is provided with a support member (341) having a limiting portion (342); the support member (341) can enter the slot (331) through the end opening of the slot (331); and the limiting portion (342) can cooperate with the limiting step (332) to prevent the support member (341) from being separated from the slot (331) from the front opening of the slot (331); and the latch (31) can be detachably mounted on the second block (34).

6. The mold changing structure for a toe molding machine according to claim 5, characterized in that: The second block (34) is vertically penetrated by a connecting hole (343), the latch (31) is inserted into the connecting hole (343) and can pivot relative to the connecting hole (343), the upper end and the lower end of the latch (31) are exposed, a clamping plate (311) is fixedly sleeved on the lower end of the latch (31), and a limiting groove (344) is provided on the second block (34) at a position corresponding to the clamping plate (311), the clamping plate (311) can move between a position of partially entering the limiting groove (344) and a position of exiting the limiting groove (344) as the latch (31) pivots, and after the clamping plate (311) partially enters the limiting groove (344), it can support the latch (31) to prevent the latch (31) from escaping from the connecting hole (343).

7. The mold changing structure for a toe molding machine according to claim 6, characterized in that: The peripheral wall of the clamping plate (311) is formed with an arc surface (312) and a plane surface (313), and the latch (31) can pivot relative to the connecting hole (343) between a position where the arc surface (312) enters the limiting groove (344) and a position where the plane surface (313) is opposite to the opening of the limiting groove (344).

8. The mold changing structure for a toe molding machine according to claim 7, characterized in that: A locking piece (35) is also provided. After the arc surface (312) enters the limiting groove (344), the locking piece (35) is detachably locked to the second block (34) by means of screws and is kept in contact with the plane (313) to limit the pivoting of the latch (31).

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