Automatic multi-station last slipping machine

Abstract

The invention relates to the technical field of shoemaking equipment, in particular to an automatic multi-station last slipping machine which comprises a machine frame and a control system used for controlling the last slipping machine to work, and the machine frame is provided with a last fixing assembly used for containing shoes to be subjected to last slipping and a last slipping assembly used for pushing the shoes on the last fixing assembly away from shoe trees. The number of the last fixing assemblies is at least two, all the last fixing assemblies are arranged in front of the last slipping assembly side by side, and the rack is further provided with a driving mechanism used for driving the last slipping assembly to move back and forth in front of all the last fixing assemblies. According to the shoe last slipping machine, the multiple shoe last fixing assemblies are arranged in the rack, when the shoe last slipping machine works, the shoe last slipping assemblies move back and forth in front of the shoe last fixing assemblies through the driving mechanism, shoe last slipping operation of three stations can be achieved through one shoe last slipping assembly, and the equipment cost and the equipment occupied area are controlled to the maximum extent while the working efficiency of a production line is improved.

Description

Technical Field

[0001] The invention relates to the technical field of shoemaking equipment, in particular to an automatic multi-station shoe last pulling machine. Background Art

[0002] In the process of shoe making, the shoe last is inserted into the upper to keep the shape and structure of the shoe. After the shoe is made, there is a process of pulling out the last, that is, pulling out the finished shoe from the shoe last head, so that the shoe and the last are separated for subsequent processing and finishing. Although the process of pulling out the last can be completed by manual operation, the traditional operation method has the disadvantages of high labor intensity and low production efficiency due to the close fit between the shoe and the last, which is far from meeting the automatic production needs of modern high-efficiency shoemaking.

[0003] A last puller is a mechanical device used in the shoemaking process. It is a tool for pulling the shoe last out of the shoe upper. The principle is to fix the shoes that have not been separated from the last on the last fixing device, and then drive the push head to push the shoes out and separate them from the last through the action of the push rod component. However, the current last puller still has problems such as low efficiency and low degree of automation. Therefore, it is necessary to improve the existing last puller. Summary of the invention

[0004] The purpose of the present invention is to provide an automated multi-station shoe last pulling machine to at least solve one of the problems raised in the background technology. To achieve the purpose of the present invention, the following technical solutions are adopted:

[0005] An automated multi-station last pulling machine comprises a frame and a control system for controlling the operation of the last pulling machine, the frame being provided with a last assembly for placing shoes to be lasted and a last pulling assembly for pushing the shoes on the last assembly away from the shoe last, the number of the last assembly is at least two groups and all the last assembly are arranged in parallel in front of the last pulling assembly, the frame being further provided with a driving mechanism for driving the last pulling assembly to move back and forth between the fronts of all the last assembly.

[0006] A further improvement is that each group of the lasting components is provided with a corresponding sensing device, and the sensing device is electrically connected to the control system for monitoring whether the corresponding lasting components are placed in the shoes to be lasted.

[0007] A further improvement is that the last assembly includes a first cylinder, a dovetail fixing block, a first slider, a lifting support column, a last mounting plate, and a last pin. The first cylinder and the dovetail fixing block are both fixed on the frame. The first slider is movably nested with the dovetail fixing block via a dovetail groove. The bottom of the lifting support column is fixedly connected to the first slider. The last mounting plate is installed on the top of the lifting support column and can be lifted and lowered. The last pin is fixed above the last mounting plate. The power output end of the first cylinder is fixedly connected to the first slider.

[0008] A further improvement is that the lifting support column comprises a shaft sleeve, a lifting column and an adjusting component, the bottom of the shaft sleeve is fixedly connected to the first sliding block, the lifting column is movably nested in the shaft sleeve, the top of the lifting column is fixedly connected to the fixed last mounting plate, the side wall of the lifting column is provided with a plurality of positioning holes at intervals from top to bottom, a through hole penetrating the side wall of the shaft sleeve is provided on the side surface of the shaft sleeve, a limit sleeve is fixedly installed at the through hole outside the side wall of the shaft sleeve, and the adjusting component comprises a handle, a spring shaft, and a spring, one end of the spring shaft is fixedly connected to the handle, and the other end of the spring shaft can movably pass through the limit sleeve and the through hole and then enter the inside of the shaft sleeve for insertion into the positioning hole, a spring is sleeved on the spring shaft, one end of the spring is connected to an inner wall of one side of the limit sleeve, and the other end of the spring is connected to a raised ring on the spring shaft.

[0009] A further improvement is that the last pulling assembly includes a push head module and a movable module for driving the push head module to move up, down, forward and backward, the movable module includes a fixed seat fixedly connected to the driving mechanism, a second cylinder is fixedly installed on the fixed seat, a power output end of the second cylinder is fixedly connected to a movable seat and is used to drive the movable seat to move up and down, a third cylinder is fixedly installed on the movable seat, and the power output end of the third cylinder is fixedly connected to the push head module for driving the push head module to move forward and backward.

[0010] A further improvement is that the push head module includes a first mounting plate and an elastic rubber block, the elastic rubber block includes an arc-shaped main block and auxiliary blocks extending outward at an angle from both sides of the arc-shaped main block, the opening of the arc-shaped main block faces the direction of the fixed last assembly, the power output end of the third cylinder is fixedly connected to the first mounting plate, and an inclined fourth cylinder is fixedly installed on each of the left and right sides of the first mounting plate, and the power output ends of the two fourth cylinders are each fixedly connected with a push plate, and the two push plates are fixedly connected to the back sides of the auxiliary blocks on both sides of the arc-shaped main block in a one-to-one correspondence.

[0011] A further improvement is that a column is fixedly installed on each side of the top of the fixed seat, a connecting plate is fixedly installed between the tops of the two columns, a movable guide sleeve is respectively sleeved on the two columns, and the movable seat is fixedly connected to the two movable guide sleeves.

[0012] A further improvement is that a guide sleeve is fixedly installed on both sides of the third cylinder on the movable seat, and a guide column is provided in the movable sleeve inside the guide sleeve, and one end of the two guide columns is fixedly connected to the push head module respectively.

[0013] A further improvement is that the driving mechanism includes a second mounting plate and a rodless cylinder, the second mounting plate is fixedly mounted on the frame, the rodless cylinder is fixedly mounted on the second mounting plate, a linear guide is fixedly mounted on the frame, the bottom of the fixed seat is movably nested with the linear guide through a slide groove, and the sliding block of the rodless cylinder is fixedly connected to the fixed seat for controlling the fixed seat to move back and forth along the linear guide.

[0014] A further improvement is that a touch screen is also provided on the frame, and the touch screen is electrically connected to the control system.

[0015] The beneficial effects of the present invention are:

[0016] The present invention arranges multiple groups of last assemblies in a frame. When working, the last pulling assembly is moved back and forth in front of these last assemblies through a driving mechanism. The last pulling operation of three stations can be realized by using one group of last pulling assembly, while the working efficiency of the production line is improved, and the equipment cost and the equipment floor area are controlled to the maximum extent. In addition, an automated multi-station last pulling machine only needs to be equipped with one staff member to realize the last pulling operation of three stations, saving labor costs.

[0017] The present invention has auxiliary blocks extending outwardly at an angle on both sides of the arc-shaped main block, and a fourth cylinder arranged obliquely is fixedly installed on the left and right sides of the first mounting plate respectively. The power output ends of the two fourth cylinders push the auxiliary blocks toward the center of the arc-shaped main block and squeeze the shoes from both sides. With the assistance of the power output ends of the two fourth cylinders, even if the shoes are not placed regularly, the last pulling assembly can smoothly push the shoes off the shoe last. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of an automated multi-station shoe last pulling machine of the present invention;

[0019] Figure 2 This is a front view of an automatic multi-station shoe last pulling machine of the present invention;

[0020] Figure 3This is a side view of an automatic multi-station last pulling machine of the present invention after placing shoes to be last pulled;

[0021] Figure 4 It is a structural schematic diagram of the last assembly in the present invention;

[0022] Figure 5 It is a structural schematic diagram of placing a shoe last on the last assembly of the present invention;

[0023] Figure 6 A cross-sectional view of the last assembly of the present invention placing the shoe last;

[0024] Figure 7 for Figure 6 A schematic diagram of the structure enlargement in the middle;

[0025] Figure 8 It is a structural schematic diagram of the shoe last pulling assembly in the present invention;

[0026] Fig. 9 It is a top view of the shoe last pulling assembly in the present invention.

[0027] Description of reference numerals:

[0028] 1. Frame; 2. Shoe last; 3. Last fixing assembly; 4. Last pulling assembly; 5. Driving mechanism; 6. First cylinder; 7. Dovetail fixing block; 8. First slide block; 9. Lifting support column; 10. Last fixing mounting plate; 11. Shoe last pin; 12. Bushing; 13. Lifting column; 14. Positioning hole; 15. Through hole; 16. Limiting sleeve; 17. Handle; 18. Spring shaft; 19. Spring; 20. Raised ring; 21. Fixed seat; 2 2. Second cylinder; 23. Movable seat; 24. Third cylinder; 25. First mounting plate; 26. Elastic rubber block; 27. Arc-shaped main block; 28. Auxiliary block; 29. ​​Fourth cylinder; 30. Push plate; 31. Column; 32. Connecting plate; 33. Movable guide sleeve; 34. Guide sleeve; 35. Guide column; 36. Second mounting plate; 37. Rodless cylinder; 38. Linear guide rail; 39. Sliding block; 40. Touch screen. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementation methods described herein are only used to explain the present invention and do not limit the scope of protection of the present invention.

[0030] It should be noted that when an element is referred to as being "fixed to", "disposed on", "fixed on" or "installed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. Furthermore, when an element is considered to be "transmission-connected" to another element, the two can achieve power transmission, and its specific implementation method can be implemented using the existing technology, which will not be repeated here. When an element is perpendicular or approximately perpendicular to another element, it means that the ideal state of the two is vertical, but due to the influence of manufacturing and assembly, there may be a certain vertical error. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only and do not represent the only implementation method.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0032] The “first” and “second” involved in the present invention do not represent specific quantities and orders, but are merely used to distinguish names.

[0033] Please refer to the attached Figure 1 -Attached Fig. 9 The embodiment of the present invention provides an automated multi-station shoe last pulling machine, such as Figure 1 , Figure 2 , Figure 3 As shown, the multi-station last pulling machine includes a frame 1 and a control system for controlling the operation of the last pulling machine. The frame 1 is provided with a last assembly 3 for placing shoes to be lasted and a last pulling assembly 4 for pushing the shoes on the last assembly 3 away from the shoe last 2. The number of the last assemblies 3 is at least two groups and all the last assemblies 3 are arranged side by side in front of the last pulling assembly 4. The frame 1 is also provided with a driving mechanism 5 for driving the last pulling assembly 4 to move back and forth between the front of all the last assemblies 3.

[0034] Specifically, in this embodiment, the number of the last fixing assemblies 3 is set to three groups, and the three groups of the last fixing assemblies 3 are arranged in parallel in front of the last pulling assembly 4 .

[0035] It can be understood that the present invention arranges multiple groups of last assemblies 3 in the frame 1. When working, the last pulling assembly 4 is moved back and forth in front of these last assemblies 3 by the driving mechanism 5. The last pulling operation of three stations can be realized by using one group of last pulling assembly 4, while the working efficiency of the production line is improved, the equipment cost and the equipment floor space are controlled to the maximum extent. In addition, an automated multi-station last pulling machine only needs to be equipped with one staff member to realize the last pulling operation of three stations, saving labor costs.

[0036] In a preferred solution of the present embodiment, each group of the lasting components 3 is provided with a corresponding sensing device (not shown in the figure), and the sensing device is electrically connected to the control system for monitoring whether the corresponding lasting components 3 are placed with the shoes to be lasted.

[0037] It can be understood that, by setting up the sensing device, the control system can monitor in real time on which last component 3 the staff has placed the shoe to be lasted. When the sensing device detects that the shoe to be lasted is placed on the corresponding last component 3, the control system will send a command to the driving mechanism 5, and the driving mechanism 5 will drive the last component 4 to move to the front of the last component 3 where the shoe to be lasted is placed. The control system then sends a command to the last component 3 and the last component 4 to start the lasting operation.

[0038] Specifically, the sensing device may be a photoelectric sensing switch.

[0039] In a preferred embodiment of this embodiment, Figure 4 , Figure 5 As shown, the last assembly 3 includes a first cylinder 6, a dovetail fixing block 7, a first slider 8, a lifting support column 9, a last mounting plate 10, and a last pin 11. The first cylinder 6 and the dovetail fixing block 7 are both fixed on the frame 1. The first slider 8 is movably nested with the dovetail fixing block 7 through a dovetail groove. The bottom of the lifting support column 9 is fixedly connected to the first slider 8. The last mounting plate 10 is installed on the top of the lifting support column 9 and can be lifted and lowered. The last pin 11 is fixed above the last mounting plate 10. The power output end of the first cylinder 6 is fixedly connected to the first slider 8 for pushing the first slider 8 to move forward and backward.

[0040] It can be understood that the first cylinder 6 is used to provide power to push the first slider 8 to move forward and backward along the dovetail fixing block 7. The nested connection between the dovetail fixing block 7 and the first slider 8 ensures high precision and smoothness of the movement of the first slider 8, and can effectively prevent the first slider 8 from deflecting or shaking during the movement, thereby ensuring the stability and reliability of the last assembly 3.

[0041] The last mounting plate 10 is installed above the lifting support column 9, and the lifting support column 9 can adjust the height of the last mounting plate 10. The last pin 11 is vertically fixed above the last mounting plate 10. The shoe last 2 is provided with a socket that is compatible with the last pin 11. During work, the staff places the shoes to be lasted on the last mounting plate 10, and the last pin 11 on the last mounting plate 10 is inserted into the socket on the shoe last 2.

[0042] In a feasible solution of this embodiment, if Figure 6 and Figure 7 As shown, the lifting support column 9 includes a sleeve 12, a lifting column 13 and an adjusting component. The bottom of the sleeve 12 is fixedly connected to the first slider 8, the lifting column 13 is movably nested in the sleeve 12, the top of the lifting column 13 is fixedly connected to the bottom surface of the fixed last mounting plate 10, and the side wall of the lifting column 13 is provided with a plurality of positioning holes 14 at intervals from top to bottom. A through hole 15 penetrating the side wall of the sleeve 12 is provided on the side of the sleeve 12, and the outer side wall of the sleeve 12 is fixedly installed at the through hole 15. A limiting sleeve 16 is installed, and the adjustment component includes a handle 17, a spring shaft 18, and a spring 19. One end of the spring shaft 18 is fixedly connected to the handle 17, and the other end of the spring shaft 18 can be movably passed through the limiting sleeve 16 and the through hole 15 and enter into the interior of the sleeve 12 for insertion into the positioning hole 14. A spring 19 is sleeved on the spring shaft 18, and one end of the spring 19 is connected to an inner wall of one side of the limiting sleeve 16, and the other end of the spring 19 is connected to a raised ring 20 on the spring shaft 18.

[0043] Preferably, the handle 17 is a plum blossom handle. In addition, a rotation-stopping device is also provided between the shaft sleeve 12 and the lifting column 13, and the rotation-stopping device is used to prevent the lifting column 13 from rotating when it is lifted up and down.

[0044] It can be understood that when it is necessary to adjust the height of the fixed last mounting plate 10, the staff pulls the handle 17. When the handle 17 is pulled, the spring shaft 18 is pulled out of the positioning hole 14 on the lifting column 13, and the lifting column 13 is unlocked. At this time, the lifting column 13 can move freely up and down in the sleeve 12. The staff adjusts the position of the lifting column 13 according to actual needs, thereby changing the height of the fixed last mounting plate 10. When the lifting column 13 is adjusted to the desired position, the handle 17 is released. Under the action of the restoring force of the spring 19, the spring shaft 18 is pushed to reinsert into the corresponding positioning hole 14 on the side wall of the lifting column 13. In this way, the lifting column 13 is fixed in the new position, and the height of the fixed last mounting plate 10 is also fixed accordingly.

[0045] In a preferred embodiment of this embodiment, Figure 8 and Fig. 9As shown, the last pulling assembly 4 includes a push head module and a moving module for driving the push head module to move up, down, forward and backward. The moving module includes a fixed seat 21 fixedly connected to the driving mechanism 5, and a second cylinder 22 is fixedly installed on the fixed seat 21. The power output end of the second cylinder 22 is fixedly connected to a movable seat 23 and is used to drive the movable seat 23 to move up and down. A third cylinder 24 is fixedly installed on the movable seat 23, and the power output end of the third cylinder 24 is fixedly connected to the push head module for driving the push head module to move forward and backward.

[0046] It can be understood that the moving module is used to drive the pusher module to move in four directions: up, down, front, and back. The pusher module is used to directly contact and push the shoe to make it separate from the shoe last 2. Specifically, the second cylinder 22 is responsible for driving the movable seat 23 to move up and down, thereby realizing the movement of the pusher module in the vertical direction. The movable seat 23 is fixedly mounted with a third cylinder 24, which serves as a driving source for the horizontal movement of the pusher module. The third cylinder 24 is responsible for driving the pusher module to move forward and backward, thereby realizing the movement of the pusher module in the horizontal direction.

[0047] Specifically, in this embodiment, the push head module includes a first mounting plate 25 and an elastic rubber block 26, and the elastic rubber block 26 is preferably a rubber block. The elastic rubber block 26 includes an arc-shaped main block 27 and auxiliary blocks 28 extending outward at an angle from both sides of the arc-shaped main block 27. The opening of the arc-shaped main block 27 is facing the direction of the fixed last assembly 3. The power output end of the third cylinder 24 is fixedly connected to the first mounting plate 25. An inclined fourth cylinder 29 is fixedly installed on the left and right sides of the upper surface of the first mounting plate 25. The power output ends of the two fourth cylinders 29 are each fixedly connected with a push plate 30. The two push plates 30 are fixedly connected to the back sides of the auxiliary blocks 28 on both sides of the arc-shaped main block 27 in a one-to-one correspondence.

[0048] The first cylinder 6 , the second cylinder 22 , the third cylinder 24 , and the fourth cylinder 29 are all electrically connected to a control system.

[0049] It can be understood that, when working, the control system controls the power output end of the third cylinder 24 to push the arc-shaped main block 27 of the elastic rubber block 26 forward to press against the back of the shoe, and the control system controls the power output ends of the two fourth cylinders 29 to push the auxiliary block 28 toward the center of the arc-shaped main block 27 and squeeze the shoe from both sides, so that the elastic rubber block 26 tightly wraps the back of the shoe, and the control system controls the power output end of the second cylinder 22 to drive the elastic rubber block 26 to move upward. Due to the friction between the elastic rubber block 26 and the shoe, the shoe will be pushed off the shoe last 2 during the upward movement of the elastic rubber block 26.

[0050] In particular, the present invention has a fourth cylinder 29 that is tilted and fixedly installed on both sides of the first mounting plate 25, and the power output ends of the two fourth cylinders 29 are each fixedly connected with a push plate 30. The two push plates 30 are fixedly connected to the back sides of the auxiliary blocks 28 on both sides of the arc-shaped main block 27 in a one-to-one corresponding manner in order to solve the problem that when the shoes to be unlasted are not placed regularly, the shoes may not be smoothly detached from the shoe last 2 during the unlasting operation. Specifically, since the shoes to be unlasted are manually placed on the last mounting plate 10 of the last assembly 3 by the staff, it is inevitable that the shoes are placed irregularly during the placement process. When the shoes are placed irregularly (tilted to the left or tilted to the right) so that the back of the shoes are not directly facing the arc-shaped main block 27, the back of the shoes cannot be directly in contact with the arc-shaped main block 27, and the force is uneven, which may cause the shoes to be unable to be pushed off the shoe last 2. However, since the present invention has auxiliary blocks 28 extending outwardly at both sides of the arc-shaped main block 27, an inclined fourth cylinder 29 is fixedly installed on the left and right sides of the first mounting plate 25, and the power output ends of the two fourth cylinders 29 push the auxiliary blocks 28 to move closer to the center direction of the arc-shaped main block 27 and squeeze the shoes from both sides. With the help of the power output ends of the two fourth cylinders 29, even if the shoes are placed irregularly, the last assembly 4 can smoothly push the shoes off the shoe last 2 during the last unloading operation.

[0051] The working principle of the present invention is:

[0052] During work, the staff places the shoes to be lasted on the last mounting plate 10 of one group of last assemblies 3. During the placement process, the shoe last pin 11 on the last mounting plate 10 is inserted into the socket on the shoe last 2. When the sensing device detects that the shoe to be lasted is placed on the corresponding last assembly 3, the control system will send a command to the driving mechanism 5, and the driving mechanism 5 will drive the last assembly 4 to move to the front of the last assembly 3 where the shoe to be lasted is placed. The control system will then send a command to the first cylinder 6 to control the last assembly 3 to move a predetermined distance in the direction of the last assembly 4. The control system will then send a command to the third cylinder 24 to control the power output end of the third cylinder 24 to push the arc-shaped main block 27 of the elastic rubber block 26 forward to hold the shoe At the back, the control system sends instructions to control the power output ends of the two fourth cylinders 29 to push the auxiliary block 28 toward the center of the arc-shaped main block 27 and squeeze the shoe from both sides, so that the elastic rubber block 26 tightly wraps the back of the shoe, and the control system sends instructions to control the power output end of the second cylinder 22 to drive the elastic rubber block 26 to move upward. Due to the friction between the elastic rubber block 26 and the shoe, the shoe will be pushed off the shoe last 2 during the upward movement of the elastic rubber block 26. After completing the last pulling operation, all cylinders in the last assembly 3 and the last pulling assembly 4 are reset, and the driving mechanism 5 drives the last pulling assembly 4 to move to the front of the next last assembly 3 where the shoe to be lasted is placed, and continues to perform the last pulling operation of the next shoe to be lasted.

[0053] In a preferred solution of the present embodiment, a column 31 is fixedly installed on each of the two sides of the top of the fixed seat 21, a connecting plate 32 is fixedly installed between the tops of the two columns 31, a movable guide sleeve 33 is sleeved on each of the two columns 31, and the movable seat 23 is fixedly connected to the two movable guide sleeves 33.

[0054] It can be understood that the cooperation between the column 31 and the movable guide sleeve 33 ensures the linearity and stability of the movable seat 23 when it moves up and down.

[0055] In a preferred solution of this embodiment, a guide sleeve 34 is fixedly installed on both sides of the third cylinder 24 on the movable seat 23, and a guide column 35 is provided in the movable sleeve 34. One end of the two guide columns 35 is fixedly connected to the push head module respectively.

[0056] It can be understood that the cooperation between the guide sleeve 34 and the guide column 35 ensures the linearity and stability of the push head module during horizontal movement.

[0057] In a preferred scheme of the present embodiment, the driving mechanism 5 includes a second mounting plate 36 and a rodless cylinder 37, the second mounting plate 36 is fixedly mounted on the frame 1, the rodless cylinder 37 is fixedly mounted on the second mounting plate 36, a linear guide rail 38 is fixedly mounted on the frame 1, the bottom of the fixed seat 21 is movably nested with the linear guide rail 38 through a slide groove, and the sliding block 39 of the rodless cylinder 37 is fixedly connected to the fixed seat 21 for controlling the fixed seat 21 to move back and forth along the linear guide rail 38.

[0058] It can be understood that the rodless cylinder 37 is electrically connected to the control system. After receiving the command of the control system, the rodless cylinder 37 drives the fixed seat 21 to move along the linear guide rail 38 to the front of the designated fixed last assembly 3 through the sliding block 39.

[0059] In this embodiment, a touch screen 40 is further provided on the rack 1, and the touch screen 40 is electrically connected to the control system.

[0060] The touch display screen 40 provides a graphical operation interface. The user can select different functions and operations through the touch display screen 40 and can set various parameters, such as the pressure of the cylinder, the moving speed, etc. through the touch display screen 40.

[0061] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An automated multi-station shoe last pulling machine, characterized in that: The invention comprises a frame and a control system for controlling the operation of the last pulling machine. The frame is provided with a last fixing assembly for placing shoes to be lasted and a last pulling assembly for pushing the shoes on the last fixing assembly away from the shoe last. The number of the last fixing assemblies is at least two groups and all the last fixing assemblies are arranged in parallel in front of the last pulling assembly. The frame is also provided with a driving mechanism for driving the last pulling assembly to move back and forth between the front of all the last fixing assemblies.

2. The automatic multi-station shoe last pulling machine according to claim 1, characterized in that: Each group of the lasting components is correspondingly provided with a sensing device, and the sensing device is electrically connected to the control system for monitoring whether the corresponding lasting component is placed in the shoe to be lasted.

3. The automatic multi-station shoe last pulling machine according to claim 1, characterized in that: The last assembly includes a first cylinder, a dovetail fixing block, a first slider, a lifting support column, a last mounting plate, and a last pin. The first cylinder and the dovetail fixing block are both fixed on the frame. The first slider is movably nested with the dovetail fixing block via a dovetail groove. The bottom of the lifting support column is fixedly connected to the first slider. The last mounting plate is installed on the top of the lifting support column and can be lifted and lowered. The last pin is fixed above the last mounting plate. The power output end of the first cylinder is fixedly connected to the first slider.

4. The automatic multi-station shoe last pulling machine according to claim 3, characterized in that: The lifting support column comprises a sleeve, a lifting column and an adjusting component, the bottom of the sleeve is fixedly connected to the first sliding block, the lifting column is movably nested in the sleeve, the top of the lifting column is fixedly connected to the fixed last mounting plate, the side wall of the lifting column is provided with a plurality of positioning holes at intervals from top to bottom, a through hole penetrating the side wall of the sleeve is provided on the side of the sleeve, a limiting sleeve is fixedly installed at the through hole outside the side wall of the sleeve, the adjusting component comprises a handle, a spring shaft, and a spring, one end of the spring shaft is fixedly connected to the handle, and the other end of the spring shaft can movably pass through the limiting sleeve and the through hole and then enter the inside of the sleeve for inserting into the positioning hole, a spring is sleeved on the spring shaft, one end of the spring is connected to an inner wall of one side of the limiting sleeve, and the other end of the spring is connected to a raised ring on the spring shaft.

5. The automatic multi-station shoe last pulling machine according to claim 1, characterized in that: The last pulling assembly includes a push head module and a moving module for driving the push head module to move up, down, forward and backward. The moving module includes a fixed seat fixedly connected to the driving mechanism, a second cylinder is fixedly installed on the fixed seat, a power output end of the second cylinder is fixedly connected to a movable seat and is used to drive the movable seat to move up and down, a third cylinder is fixedly installed on the movable seat, and the power output end of the third cylinder is fixedly connected to the push head module for driving the push head module to move forward and backward.

6. The automatic multi-station shoe last pulling machine according to claim 5, characterized in that: The push head module includes a first mounting plate and an elastic rubber block, the elastic rubber block includes an arc-shaped main block and auxiliary blocks extending outward at an angle from both sides of the arc-shaped main block, the opening of the arc-shaped main block faces the direction of the fixed last assembly, the power output end of the third cylinder is fixedly connected to the first mounting plate, and an inclined fourth cylinder is fixedly installed on each of the left and right sides of the first mounting plate, and the power output ends of the two fourth cylinders are each fixedly connected with a push plate, and the two push plates are fixedly connected to the back sides of the auxiliary blocks on both sides of the arc-shaped main block in a one-to-one correspondence.

7. The automatic multi-station shoe last pulling machine according to claim 5, characterized in that: A column is fixedly installed on both sides of the top of the fixed seat, a connecting plate is fixedly installed between the tops of the two columns, a movable guide sleeve is sleeved on each of the two columns, and the movable seat is fixedly connected to the two movable guide sleeves.

8. The automatic multi-station shoe last pulling machine according to claim 5, characterized in that: A guide sleeve is fixedly installed on both sides of the third cylinder on the movable seat, and a guide column is arranged in the movable sleeve inside the guide sleeve. One end of the two guide columns is fixedly connected to the push head module respectively.

9. The automatic multi-station shoe last pulling machine according to claim 5, characterized in that: The driving mechanism includes a second mounting plate and a rodless cylinder, the second mounting plate is fixedly mounted on the frame, the rodless cylinder is fixedly mounted on the second mounting plate, a linear guide is fixedly mounted on the frame, the bottom of the fixed seat is movably nested with the linear guide through a slide groove, and the sliding block of the rodless cylinder is fixedly connected to the fixed seat for controlling the fixed seat to move back and forth along the linear guide.

10. The automatic multi-station shoe last pulling machine according to claim 1, characterized in that: The frame is also provided with a touch display screen, and the touch display screen is electrically connected to the control system.

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