Side pressing structure of sole pressing machine and sole pressing machine

Abstract

The application discloses a side pressing structure of a sole pressing machine and the sole pressing machine. The side pressing structure of the sole pressing machine has a cylinder body, a plurality of cylinder chambers are formed in the cylinder body, and a push rod is arranged in each cylinder chamber. A side pressing group is arranged on an outward protruding end of each push rod. Each push rod is used to drive the side pressing group to move forward and backward relative to the cylinder body. The side pressing group has a base which is fixed to the push rod. A protruding block is formed on the base and protrudes forward. The protruding block has a group connecting surface arranged forward. A movable block is slidably arranged on each opposite side of the base. A pressing block is arranged on the front end of each movable block. A connecting rod group is pivotally arranged on the push rod at the middle segment. The rear end of each movable block is pivotally connected to the two ends of the connecting rod group, so that the movable blocks and the pressing blocks can move forward and backward relative to each other.

Description

Technical Field

[0001] This invention relates to the field of shoemaking machinery, and in particular to a side pressing structure of a sole pressing machine and the sole pressing machine itself. Background Technology

[0002] Traditional shoe-making sole pressing machines, such as the improved side pressing mechanism disclosed in Taiwan Patent Publication No. M534538, mainly use push rods of multiple pressure cylinders to push corresponding pressure blocks to perform side pressing on the sole. The pressure blocks are used to press against the sides of the sole. Therefore, the more pressure blocks there are, the more closely they can fit the curved sides of the sole. However, the number of pressure blocks that can be installed in the patent is fixed and cannot be increased according to different needs. Moreover, if the number of pressure blocks is increased by simply increasing the number of pressure cylinders, it will only lead to a relatively larger overall size and a significant increase in manufacturing costs. Therefore, the practicality of the patent is still not ideal.

[0003] For example, the side pressing device of the shoe sole pressing machine disclosed in Taiwan Patent Publication No. M300052 is made by additionally attaching a spring to each pressing block, and by using the elastic restoring force provided by the spring, the pressing block can have an automatic reset function during the retraction stroke. However, its reset structure is too complicated, which is not only not conducive to the assembly operation, but also increases its manufacturing cost. There are still areas for improvement.

[0004] Therefore, a new technical solution needs to be developed to address the above problems. Summary of the Invention

[0005] In view of this, the present invention addresses the deficiencies of the prior art, and its main objective is to provide a side pressing structure for a bottom pressing machine and a bottom pressing machine, which has the function of increasing the number of pressing blocks according to actual needs.

[0006] The second objective is to provide a side pressing structure for a bottom pressing machine and a bottom pressing machine, which has a relatively simple structural composition, and whose side pressing structure has the function of automatic reset.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A side-pressing structure of a bottom pressing machine includes: A cylinder block has several cylinder chambers inside, and a first flow channel and a second flow channel communicating with each cylinder chamber are provided in the cylinder block. Each cylinder chamber is provided with a push rod, and each push rod has an assembly end protruding out of the cylinder chamber. A side pressure assembly is provided on the assembly end. Each push rod can be pushed by the pressure in the first flow channel and the second flow channel to drive its side pressure assembly to move back and forth relative to the cylinder block. The side pressure assembly has a base and two movable blocks. The base has a front side and a rear side opposite to the front side. The rear side of the base is fixedly connected to the assembly end of the push rod. A protrusion is formed at the center of the front side. The protrusion has a front-facing assembly surface for selecting whether to assemble a pressure block. A sliding groove is formed on each of the two opposite sides of the base. The two movable blocks are slidably disposed in each of the sliding grooves. The front ends of the two movable blocks facing the front side are respectively used to connect a pressure block. A connecting rod assembly is pivotally mounted on the assembly end of the push rod at its middle section. The rear ends of the two movable blocks facing the rear side are pivotally connected to both ends of the connecting rod assembly, so that the two movable blocks and their pressure blocks can be moved back and forth relative to each other.

[0008] As a preferred embodiment, each of the push rods has a force-receiving end that extends into the cylinder chamber, and the force-receiving end is provided with a piston located between the first flow channel and the second flow channel.

[0009] As a preferred embodiment, the linkage assembly is composed of two parallel spaced plates, and the two plates are pivotally mounted relative to each other at their middle sections on an upper cut surface and a lower cut surface located at the assembly end via a pivot.

[0010] As a preferred embodiment, each of the two plates has a planar abutment surface on one side facing the cylinder body, and a reset block is fixed on the end face of the cylinder body facing the base. The reset block has a reference plane that is at the same horizontal height as the abutment surfaces of the two plates and is arranged opposite to them. When the side pressure assembly moves backward with the retraction stroke of the push rod, it can drive the abutment surfaces of the two plates to abut against the reference plane, thereby forcing the linkage assembly to pivot under force to drive the two movable blocks and their pressure blocks to automatically reset to a starting position that is flush with each other.

[0011] As a preferred embodiment, in a certain state of use, the pressure blocks assembled on the two movable blocks cover each other on the joint surface of the protrusion, and the pressure blocks assembled on the two movable blocks are respectively recessed to form a groove on the end face facing the protrusion, so that a buffer space is formed between the groove of each pressure block and the protrusion, allowing the two pressure blocks to retract.

[0012] As a preferred embodiment, the cylinder body has a linear guide groove on the top surface corresponding to the side pressure assembly, and a guide rod is slidably housed in the linear guide groove. The end of the guide rod extending outward from the cylinder body is connected to a connecting part of the base. When the push rod drives the base to move back and forth, the base will synchronously drive the guide rod to slide along the linear guide groove.

[0013] As a preferred embodiment, in another usage state, the pressure blocks assembled on the two movable blocks are respectively located on two opposite sides of the protrusion, and several locking holes are provided on the assembly surface of the protrusion for locking a fixed pressure block.

[0014] A bottom pressing machine, the application of which includes the side pressing structure of the bottom pressing machine as described in any of the preceding items.

[0015] Compared with the prior art, the present invention has significant advantages and beneficial effects. Specifically, as can be seen from the above technical solution, it mainly relies on the structural arrangement of the cylinder block and the side pressure assembly. Each cylinder chamber has a push rod, and each push rod has an assembly end protruding outside the cylinder chamber. A side pressure assembly is provided on the assembly end. Each push rod can be pushed by the pressure within the first and second flow channels, causing its side pressure assembly to move back and forth relative to the cylinder block. The side pressure assembly has a base and two movable blocks. The base has a front side and a rear side opposite to the front side. The base is fixedly connected to the assembly end of the push rod via its rear side. A protrusion is formed at the center of the front side, and the protrusion has a front-facing engagement surface for selecting whether to assemble a pressure block. A sliding groove is formed on each of the two opposite sides of the base, and the two movable blocks are slidably disposed in each of the sliding grooves. The front ends of the two movable blocks facing the front side are respectively used to connect a pressure block. A linkage assembly is pivotally mounted on the assembly end of the push rod at its middle section, and the rear ends of the two movable blocks facing the rear side are pivotally connected to both ends of the linkage assembly, so that the two movable blocks and their pressure blocks can be moved back and forth relative to each other. In this way, the number of pressure blocks can be increased according to actual needs. Furthermore, it has a relatively simple structural composition, which enables its side pressure structure to have the function of automatic reset.

[0016] To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0017] Figure 1 This is a perspective view of an embodiment of the present invention; Figure 2 This is an exploded view of the side pressure assembly according to an embodiment of the present invention; Figure 3 This is a partial cross-sectional schematic diagram (top view) of an embodiment of the present invention; Figure 4 This is another partial cross-sectional schematic diagram (side view) of an embodiment of the present invention. Figure 5 This is a schematic diagram of the side pressure assembly according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the operating state of the side pressure assembly according to an embodiment of the present invention; Figure 7 This is an exploded view of the side pressure assembly of an embodiment of the present invention in another usage state; Figure 8 This is a schematic diagram of the operation state of the side pressure assembly in another usage state according to an embodiment of the present invention.

[0018] Figure Identification: Platform 1, Cylinder 11, Cylinder Chamber 12, First Flow Channel 13, Second Flow Channel 14, Push Rod 15, Assembly End 151, Force-Bearing End 152, Upper Cutting Plane 153, Lower Cutting Plane 154, Piston 16, Reset Block 17, Reference Plane 171, Linear Guide Groove 18, Guide Rod 19, Side Pressure Assembly 21, Base 22, Front Side 221, Rear Side 222, Connecting Part 223, Movable Block 23, Front End 231, Rear End 232, Protrusion 24, Assembly Surface 241, Locking Hole 242, Slide Groove 25, Pressure Block 26, Groove 261, Connecting Rod Assembly 27, Plate 271, Pivot 272, Abutting Surface 273, Connector 28, Buffer Space 29, Fixed Pressure Block 31, Starting Position A, Shoe Material B. Detailed Implementation

[0019] Please refer to Figures 1 to 8 As shown, it illustrates the specific structure of an embodiment of the present invention.

[0020] In the description of this invention, it should be noted that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0021] As shown in Figures 1 to 5, the invention discloses a side-pressing structure for a bottom-pressing machine, which mainly consists of two parallel and spaced cylinders 11 arranged on a platform 1. Since the two cylinders 11 have the same composition, the following description focuses only on the detailed composition of one side cylinder 11: The cylinder body 11 has several cylinder chambers 12 inside it, and a first flow channel 13 and a second flow channel 14 communicating with each cylinder chamber 12 are provided in the cylinder body 11. Each cylinder chamber 12 is provided with a push rod 15. Each push rod 15 has an assembly end 151 protruding outside its cylinder chamber 12 and a force-receiving end 152 extending into its cylinder chamber 12. A piston 16 located between the first flow channel 13 and the second flow channel 14 is provided on the force-receiving end 152, and a side pressure group 21 is provided on the assembly end 151. When the piston 16 of each push rod 15 is pushed by the pressure (e.g., oil pressure) in the first flow channel 13 and the second flow channel 14, it can drive the side pressure group 21 connected to it to move back and forth relative to the cylinder body 11.

[0022] Each set of side pressure groups 21 on the end 151 is composed of a base 22 and two movable blocks 23. The base 22 has a front side 221 and a rear side 222 opposite to the front side 221. The base 22 is fixedly connected to the set end 151 of the push rod 15 via its rear side 222. A longitudinally extending, elongated, strip-shaped protrusion 24 is integrally formed at the center of the front side 221. The protrusion 24 has a selection surface 241 on its forward-facing end face, allowing for the selection of whether to assemble the pressure block. A sliding groove 25 is formed on each of the two opposite sides of the base 22, and each sliding groove 25 is used to slide the two movable blocks 23. A pressure block 26 is respectively connected to the front end 231 of the front side 221, and a connecting rod assembly 27 is pivotally mounted on the assembly end 151 of the push rod 15 with its middle section. The connecting rod assembly 27 is composed of two parallel spaced plates 271. The two plates 271 are pivotally mounted on an upper cut surface 153 and a lower cut surface 154 located on the assembly end 151 respectively through a pivot 272, so that the two ends of the connecting rod assembly 27 can pivotally move. The two movable blocks 23, with their rear ends 232 protruding towards the rear side 222, are pivotally connected to the two ends of the connecting rod assembly 27 via a connector 28, so that the two movable blocks 23 and their pressure block 26 can move back and forth relative to each other.

[0023] Furthermore, each of the two plates 271 has a planar abutment surface 273 formed on one side facing the cylinder 11, and a reset block 17 is fixed on the end face of the cylinder 11 facing the base 22. The reset block 17 has a reference plane 171 that is at the same horizontal height as the abutment surfaces 273 of the two plates 271 and is arranged opposite to them. When the side pressure assembly 21 moves backward with the retraction stroke of the push rod 15, it can drive the abutment surfaces 273 of the two plates 271 to abut against the reference plane 171 of the reset block 17, thereby forcing the connecting rod assembly 27 to pivot under force to drive the two movable blocks 23 and their pressure blocks 26 to automatically reset to a starting position A that is flush with each other.

[0024] As shown in Figures 1 to 5, the protrusion 24's mating surface 241 is in use without the pressure block. In this use state, the pressure blocks 26 mounted on the two movable blocks 23 overlap each other on the protrusion 244's mating surface 241. Each pressure block 26 on the two movable blocks 23 has a recessed groove 261 on its end face facing the protrusion 24, creating a buffer space 29 between the groove of each pressure block 26 and the protrusion 24, allowing the two pressure blocks 26 to retract. A linear guide groove 18 is respectively opened on the top surface of each side pressure group 21 of the cylinder body 11, and a guide rod 19 is slidably housed in the linear guide groove 18. The end of the guide rod 19 extending outward from the cylinder body 11 is fixed to a connecting part 223 on the top of the base 22. When the push rod 15 drives the base 22 to move back and forth, the base 22 will synchronously drive the guide rod 19 to slide along the linear guide groove 18, so as to further ensure the smoothness of the push stroke of the push rod 15.

[0025] In practical use, as shown in Figure 6, when the user drives the cylinder 11 to move the push rod 15 and its side pressure assembly 21 forward, and the pressure blocks 26 of the side pressure assembly 21 press against the curved side of a shoe material B, when one pressure block 26 presses against the side of the shoe material B, the other pressure block 26 will rotate with the pivot of the connecting rod assembly 27 to match the side profile of the shoe material B. This automatically adjusts its side pressure position according to the side curvature of the shoe material 21, and after the side pressure is completed... During the stroke of the push rod 15 retracting, the push rod 15 drives the abutment surfaces 273 of the two plates 271 to abut against the reference plane 171, which forces the linkage 27 to pivot again, thereby causing the two movable blocks 23 and their pressure blocks 26 to automatically return to the starting position A (as shown in Figure 5). This allows the present invention to have an automatic reset function for its side pressure structure through its reasonable spatial configuration and relatively simple structural composition, and thus effectively reduces its manufacturing cost.

[0026] Furthermore, the side-pressing structure provided by the present invention further has the function of increasing the number of pressing blocks according to actual needs through the assembly surface 241 on its protrusion 24. As shown in Figure 7, this invention has another usage state in which pressing blocks are assembled on the assembly surface 241 of the protrusion 24. The difference between this and the above usage state is that the pressing blocks 26 assembled on the two movable blocks 23 are respectively located on two opposite sides of the protrusion 24, and several locking holes 242 are provided on the assembly surface 241 of the protrusion 24 for locking a fixed pressing block 31, thereby allowing each side-pressing assembly 21 to be installed without... Without modifying its cylinder drive structure, the number of pressure blocks can be easily and quickly increased by directly assembling the fixed pressure block 31 onto the assembly surface 241 of the protrusion 24. As shown in Figure 8, when the push rod 15 drives its side pressure assembly 21 to move forward, the simultaneous action of the fixed pressure block 31 and the pressure blocks 26 set on the two movable blocks 23 can effectively improve the tightness and fit between it and the side of the shoe material B. This makes the side pressure structure provided by the present invention more practical, as it can increase the number of pressure blocks according to actual needs.

[0027] In addition, a bottom pressing machine is provided, the application of which includes the side pressing structure of the bottom pressing machine as described in any of the preceding items.

[0028] The key design feature of this invention lies in its structural arrangement of the cylinder block and side pressure assembly. Each cylinder chamber contains a push rod, each push rod having an assembly end protruding outside the cylinder chamber, and a side pressure assembly is mounted on the assembly end. Each push rod can be pushed by the pressure within the first and second flow channels, causing its side pressure assembly to move back and forth relative to the cylinder block. The side pressure assembly has a base and two movable blocks. The base has a front side and a rear side opposite to the front side. The rear side of the base is fixedly connected to the assembly end of the push rod, and a protrusion is formed at the center of the front side. The protrusion has a forward-facing engagement surface for selecting whether to assemble a pressure block, and a sliding groove is formed on each of the two opposite sides of the base. The two movable blocks are slidably disposed in each of the sliding grooves. The front ends of the two movable blocks facing the front side are respectively used to connect a pressure block. A linkage assembly is pivotally mounted on the assembly end of the push rod at its middle section, and the rear ends of the two movable blocks facing the rear side are pivotally connected to both ends of the linkage assembly, so that the two movable blocks and their pressure blocks can be moved back and forth relative to each other. In this way, the number of pressure blocks can be increased according to actual needs. Furthermore, it has a relatively simple structural composition, which enables its side pressure structure to have the function of automatic reset.

[0029] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the technical scope of the present invention. Therefore, any minor modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A side-pressing structure for a bottom-pressing machine, characterized in that, Including: A cylinder block has several cylinder chambers inside, and a first flow channel and a second flow channel communicating with each cylinder chamber are provided in the cylinder block. Each cylinder chamber is provided with a push rod, and each push rod has an assembly end protruding out of the cylinder chamber. A side pressure assembly is provided on the assembly end. Each push rod can be pushed by the pressure in the first flow channel and the second flow channel to drive its side pressure assembly to move back and forth relative to the cylinder block. The side pressure assembly has a base and two movable blocks. The base has a front side and a rear side opposite to the front side. The rear side of the base is fixedly connected to the assembly end of the push rod. A protrusion is formed at the center of the front side. The protrusion has a front-facing assembly surface for selecting whether to assemble a pressure block. A sliding groove is formed on each of the two opposite sides of the base. The two movable blocks are slidably disposed in each of the sliding grooves. The front ends of the two movable blocks facing the front side are respectively used to connect a pressure block. A connecting rod assembly is pivotally mounted on the assembly end of the push rod at its middle section. The rear ends of the two movable blocks facing the rear side are pivotally connected to both ends of the connecting rod assembly, so that the two movable blocks and their pressure blocks can be moved back and forth relative to each other.

2. The side pressing structure of the bottom pressing machine according to claim 1, characterized in that, Each push rod has a force-receiving end that extends into the cylinder chamber, and a piston located between the first flow channel and the second flow channel is provided on the force-receiving end.

3. The side pressing structure of the bottom pressing machine according to claim 1, characterized in that, The connecting rod assembly is composed of two parallel spaced plates, and the two plates are pivotally mounted relative to each other at their middle sections on an upper cut plane and a lower cut plane located at the assembly end via a pivot.

4. The side pressing structure of the bottom pressing machine according to claim 3, characterized in that, The two plates each have a planar abutment surface on one side facing the cylinder body. A reset block is fixed on the end face of the cylinder body facing the base. The reset block has a reference plane that is at the same horizontal height as the abutment surfaces of the two plates and is arranged opposite to them. When the side pressure assembly moves backward with the retraction stroke of the push rod, it can drive the abutment surfaces of the two plates to abut against the reference plane, thereby forcing the linkage assembly to pivot under force to drive the two movable blocks and their pressure blocks to automatically reset to a starting position that is flush with each other.

5. The side pressing structure of the bottom pressing machine according to claim 1, characterized in that, The pressure blocks assembled on the two movable blocks cover each other on the joint surface of the protrusion, and each pressure block assembled on the two movable blocks has a groove formed on its end face facing the protrusion, so that a buffer space is formed between the groove of each pressure block and the protrusion, allowing the two pressure blocks to retract.

6. The side pressing structure of the bottom pressing machine according to claim 1, characterized in that, The cylinder body has a linear guide groove on the top surface corresponding to the side pressure group, and a guide rod is slidably housed in the linear guide groove. The end of the guide rod extending outward from the cylinder body is connected to a connecting part of the base. When the push rod drives the base to move back and forth, the base will synchronously drive the guide rod to slide along the linear guide groove.

7. The side pressing structure of the bottom pressing machine according to claim 1, characterized in that, The pressure blocks assembled on the two movable blocks are respectively located on two opposite sides of the protrusion, and several locking holes are provided on the assembly surface of the protrusion for locking a fixed pressure block.

8. A bottom pressing machine, characterized in that: The application has the side pressing structure of the bottom pressing machine as described in any one of claims 1 to 7.

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