A full-automatic sole pressing device

Abstract

The present application relates to a kind of full-automatic bottoming equipment, including shoe sole pressing production line, shoe sole pressing production line includes rack, shoe tool conveying device and at least two bottoming devices;Shoe tool conveying device includes at least two main conveying lines, at least one first branch conveying line and at least one second branch conveying line, main conveying line includes two main conveying units;The position corresponding to first branch conveying line on main conveying line is provided with first transition conveying mechanism, and the position corresponding to second branch conveying line on main conveying line is provided with second transition conveying mechanism;Bottoming device includes shoe sole pressing mechanism and shoe tool lifting mechanism, and the bottom of shoe sole pressing mechanism is provided with opening for shoe to go out;Shoe tool lifting mechanism is arranged between the two main conveying units of main conveying line.This kind of full-automatic bottoming equipment can be automatically completed to shoe sole pressing process to shoe, can realize to the continuous pressing operation of high frequency to shoe sole, adapts modernization, the production demand of batch shoemaking of automation.

Description

Technical Field

[0001] This invention relates to the field of shoemaking equipment, and more specifically to a fully automatic sole pressing device. Background Technology

[0002] In the shoe manufacturing process, the firm bonding of the upper and the sole is one of the key steps to ensure the quality of the finished shoe. This step usually involves applying adhesive to the areas to be bonded (the edges of the upper and the corresponding surfaces of the sole), then applying external force to firmly adhere the two together, and applying continuous and uniform pressure to ensure that the adhesive layer is fully impregnated and cured, thereby forming a reliable bond strength.

[0003] To mechanize and automate the aforementioned processes, shoe sole pressing machines are widely used in the industry. For example, Chinese invention patent CN203748775U discloses a shoe sole pressing machine, including a frame and a pressing device. The pressing device includes a shoe fixing seat, a shoe sole pressing mechanism, a flip plate, and a damping cylinder. The shoe fixing seat is mounted on the frame; the middle part of the flip plate is hinged to the rear end of the shoe fixing seat, and the shoe sole pressing mechanism is mounted on the front end of the flip plate; the cylinder body of the damping cylinder is hinged to the frame, and the piston rod of the damping cylinder is connected to the rear end of the flip plate; the damping cylinder includes a cylinder body, a piston rod, and a... The cylinder comprises a first pneumatic piston, a second pneumatic piston, a hydraulic piston, hydraulic fluid, a first check valve, and a second check valve. A first air inlet is located at the front end of the cylinder, and a second air inlet is located at the rear end. The first, second, and hydraulic pistons are all installed within the cylinder, with the hydraulic piston positioned between the first and second pneumatic pistons. Hydraulic fluid fills the space between the first and second pneumatic pistons. The inner end of the piston rod is connected to the first pneumatic piston. Both the first and second check valves are mounted on the hydraulic piston. When the sole pressing mechanism is to be lifted, the gas at the front of the damping cylinder is pressurized, forcing the piston rod to retract and the front end of the flap to flip upwards, thus lifting the sole pressing mechanism. When the sole pressing mechanism is to be closed, the gas at the front and rear of the damping cylinder is released, the piston rod extends, and the front end of the flap flips downwards, thus closing the sole pressing mechanism.

[0004] However, this type of sole pressing machine requires lifting the sole pressing mechanism before and after each pressing operation, followed by manual removal, placement, and positioning of the shoe, before finally closing the pressing mechanism to complete the pressing. The entire process relies on manual, step-by-step operation, making it impossible to perform high-frequency, continuous sole pressing operations. This results in low efficiency and the need to stop the machine before each pressing operation, making it unsuitable for modern, automated mass production of shoes. Furthermore, this sole pressing machine lacks a supporting cooling system. The air bladders inside the pressing device generate significant compression and frictional heat during high-pressure compression and repeated deformation. This heat cannot be dissipated in time, leading to high-temperature heat accumulation in the air bladders over long-term operation. The high-pressure heating of the air bladders not only accelerates the aging, cracking, and deformation of the air bladder material, significantly reducing its lifespan and increasing equipment maintenance costs, but also affects the curing performance of the adhesive layer on the shoe body, easily causing quality problems such as adhesive aging, delamination, and weak adhesion. This further reduces the yield rate of finished shoes and is detrimental to the long-term stable and continuous operation of the equipment. Summary of the Invention

[0005] The technical problem to be solved by this invention is to provide a fully automatic sole pressing device. This device can automatically complete the sole pressing process of shoes and can achieve high-frequency continuous pressing operations, thereby improving work efficiency and adapting to the needs of modern, automated mass shoe production. The technical solution adopted is as follows: A fully automatic sole pressing equipment, characterized in that: it includes a sole pressing production line, which comprises a frame, a shoe tooling conveyor, and at least two sole pressing devices; the shoe tooling conveyor is mounted on the frame and includes at least two main conveyor lines, at least one first branch conveyor line, and at least one second branch conveyor line. Each main conveyor line runs forward and backward and is arranged sequentially from left to right. Each main conveyor line includes two main conveyor units that are arranged side by side and move from front to back; the first branch conveyor line is located between the front ends of two adjacent main conveyor lines, and the second branch conveyor line is located between the rear ends of two adjacent main conveyor lines; a first transition is provided at a position on each main conveyor line corresponding to the end of the first branch conveyor line. The conveying mechanism includes second transition conveying mechanisms at positions corresponding to the ends of the second branch conveyor on the main conveyor line. One main conveyor line's front end serves as the inlet of the shoe tooling conveyor, and the other main conveyor line's rear end serves as the outlet of the shoe tooling conveyor. The number of sole pressing devices is the same as that of the main conveyor lines, and they correspond one-to-one. Each sole pressing device includes a sole pressing mechanism and a shoe tooling lifting mechanism. Both the sole pressing mechanism and the shoe tooling lifting mechanism are mounted on the frame. The sole pressing mechanism is located directly above the middle section of the main conveyor line, with an opening at its bottom for shoes to enter and exit. A pressing station is located directly below the sole pressing mechanism. The shoe tooling lifting mechanism is positioned between the two main conveyor units of the main conveyor line and at the pressing station.

[0006] Typically, the aforementioned sole pressing production line is equipped with multiple shoe fixtures. Each fixture includes a sole plate and a shoe last mounted on the sole plate. Shoes to be pressed can be pre-fitted onto the shoe last, and then conveyed by the sole pressing production line. The front and rear sides of the aforementioned sole pressing production line are generally equipped with an infeed production line and an outfeed production line, respectively. The outlet of the infeed production line connects to the inlet of the shoe fixture conveyor, and the inlet of the outfeed production line connects to the outlet of the shoe fixture conveyor.

[0007] During operation, the feeding production line first transports shoe fixtures containing shoes one by one to the inlet of the shoe fixture conveying device. Then, the shoe fixture conveying device, through two main conveying units, moves the shoe fixtures from front to back to the pressing station (the bottom plates of the shoe fixtures are supported at both ends by the two main conveying units of the main conveyor line). Alternatively, they can be transferred to the first branch conveyor line via the first transition conveyor mechanism at the front end of the main conveyor line, and then transferred to the front end of another adjacent main conveyor line via the corresponding first transition conveyor mechanism. This process diverts the shoe fixtures to different main conveyor lines, which then transport the shoe fixtures to the corresponding pressing station via two main conveying units. The bottom plate is supported at both ends by two main conveying units of the main conveyor line. After the shoe tooling reaches the pressing station, it stops moving and is then lifted by the shoe tooling lifting mechanism, so that the shoe on the shoe tooling enters the shoe sole pressing mechanism through the opening at the bottom of the shoe sole pressing mechanism. After the shoe sole pressing process is completed, the shoe tooling lifting mechanism is lowered and reset, so that the shoe tooling returns to the main conveyor line to continue conveying. Finally, the shoe tooling that has completed the shoe sole pressing process on each main conveyor line can be transferred to the outlet end of the shoe tooling conveying device through the corresponding second transition conveyor and second branch conveyor line, and then received by the discharge production line and transferred to the next process. Therefore, this fully automatic sole pressing equipment can divert the received shoe tooling to the pressing station of different sole pressing devices through the shoe tooling conveyor, and automatically complete the sole pressing process of the shoes. Since there is no need to stop and wait before pressing, it can realize high-frequency continuous pressing of the sole. It can meet the production needs when the feeding speed of the feeding production line is fast, and can adapt to the needs of modern and automated mass shoe production, thereby improving work efficiency.

[0008] As a specific embodiment of the present invention, the shoe tooling conveying device includes two main conveying lines, a first branch conveying line and a second branch conveying line. The two main conveying lines are arranged side by side, the first branch conveying line is located between the front ends of the two main conveying lines, and the second branch conveying line is located between the rear ends of the two main conveying lines. Correspondingly, there are two bottom pressing devices, each corresponding to one of the two main conveying lines, and the bottom pressing devices are located in the middle section of the corresponding main conveying lines.

[0009] As a preferred embodiment of the present invention, both the first and second transition conveying mechanisms include a lifting frame and a position switching mechanism capable of switching the height position of the lifting frame. The lifting frame is located between two main conveying units of the corresponding main conveyor line, and a left-right oriented transition conveyor belt is installed on the lifting frame. The transition conveyor belt corresponds to the end position of the corresponding first or second branch conveyor line. Under normal conditions, the lifting frame and the transition conveyor belt are in a low position, which does not affect the normal conveying of shoe tooling by the two main conveying units of the main conveyor line. When the first or second transition conveying mechanism needs to transfer shoe tooling to the corresponding first or second branch conveyor line, the position switching mechanism switches the height position of the lifting frame, causing the lifting frame and the transition conveyor belt to rise to a high position. At this time, the transition conveyor belt is flush with the first or second branch conveyor line, and the position of the transition conveyor belt is higher than the two main conveying units of the main conveyor line.

[0010] As a further preferred embodiment of the present invention, the position switching mechanism includes a position switching cylinder, the cylinder body of which is mounted on the frame, and the piston rod of which faces upward and is connected to the lifting frame. During operation, the lifting frame can be raised or lowered a certain height by extending or retracting the piston rod of the position switching cylinder.

[0011] As a preferred embodiment of the present invention, the shoe fixture lifting mechanism includes a movable pallet and a lifting mechanism for driving the movable pallet to rise and fall. The lifting mechanism is mounted on the frame, and the movable pallet is positioned between the middle sections of the two main conveying units and directly below the opening of the sole pressing mechanism. A shoe fixture clamping assembly is mounted on the movable pallet. When a shoe fixture arrives at the pressing station, the bottom plate of the shoe fixture is on the movable pallet, and the shoe fixture clamping assembly clamps the bottom plate of the shoe fixture, stabilizing its position. Subsequently, the shoe fixture lifting mechanism drives the movable pallet and the shoe fixture to rise through the lifting mechanism, allowing the shoe on the shoe fixture to enter the sole pressing mechanism through the opening at the bottom of the sole pressing mechanism.

[0012] As a further preferred embodiment of the present invention, the lifting mechanism includes a lifting cylinder, a support plate, two guide sleeves, and two guide columns. The cylinder body of the lifting cylinder is mounted on the frame and runs vertically. The piston rod of the lifting cylinder extends upward and connects to the movable support plate. The support plate is mounted on the top of the cylinder body of the lifting cylinder and has a through hole through which the piston rod of the lifting cylinder can pass. The two guide sleeves are mounted on the support plate and run vertically. The middle portions of the two guide columns are respectively located in the corresponding guide sleeves, and the upper ends of the two guide columns are connected to the movable support plate. During operation, the movable support plate can be driven to rise or fall a certain height by extending or retracting the piston rod of the lifting cylinder. The sliding cooperation between the two guide sleeves and the two guide columns makes the lifting movement of the movable support plate more stable.

[0013] As a further preferred embodiment of the present invention, the shoe tooling clamping assembly includes two clamping blocks and two clamping cylinders. The two clamping blocks are arranged one in front of the other on the upper side of the movable tray. The two clamping cylinders correspond one-to-one with the two clamping blocks. The cylinder body of the clamping cylinder is mounted on the movable tray and runs in a front-to-back direction. The piston rod of the clamping cylinder is connected to the corresponding clamping block. During operation, the piston rods of the two clamping cylinders can extend or retract synchronously, driving the two clamping blocks to move towards or away from each other, thereby clamping or releasing the shoe tooling that has reached the movable tray.

[0014] As a preferred embodiment of the present invention, the sole pressing device further includes a shoe positioning mechanism, which includes a first shoe support assembly, a second shoe support assembly, and an opening and closing control mechanism for driving the first and second shoe support assemblies to open and close. The opening and closing control mechanism is mounted on a frame, and the first and second shoe support assemblies are arranged opposite each other at the opening of the sole pressing mechanism. During operation, the shoe on the shoe fixture at the pressing station is lifted into the sole pressing mechanism by the shoe fixture lifting mechanism. The opening and closing control mechanism of the shoe positioning mechanism drives the first and second shoe support assemblies to move towards each other, using the first and second shoe support assemblies to support and clamp the shoe on the shoe fixture to achieve positioning, and cooperates with the sole pressing mechanism to complete the sole pressing process of the shoe, thereby ensuring the quality of sole pressing.

[0015] As a further preferred embodiment of the present invention, the opening and closing control mechanism includes a first translation seat, a first translation mechanism for driving the first translation seat to translate left and right, a second translation seat, and a second translation mechanism for driving the second translation seat to translate left and right. Both the first and second translation mechanisms are mounted on a frame. The first shoe assembly is mounted on the first translation seat, and the second shoe assembly is mounted on the second translation seat. During operation, the first and second translation mechanisms can respectively drive the first and second translation seats to translate towards or away from each other, thereby causing the first and second shoe assemblies to open and close.

[0016] As a further preferred embodiment of the present invention, the first translation mechanism includes a first translation cylinder, the cylinder body of which is mounted on the frame and oriented left-right, and the piston rod of which is connected to the first translation seat; the second translation mechanism includes a second translation cylinder, the cylinder body of which is mounted on the frame and oriented left-right, and the piston rod of which is connected to the second translation seat. Thus, the piston rods of the first and second translation cylinders can be synchronously extended and retracted to drive the first and second translation seats to translate towards or away from each other, thereby causing the first and second slipper assemblies to open and close.

[0017] As a further preferred embodiment of the present invention, the first shoe-supporting assembly includes a first support plate and a first pad, the first support plate being mounted on the first translation seat, and the first pad being mounted on the first support plate; the second shoe-supporting assembly includes a second support plate and a second pad, the second support plate being mounted on the second translation seat, and the second pad being mounted on the second support plate; both the first pad and the second pad are U-shaped, with the U-shaped opening of the first pad facing the U-shaped opening of the second pad. The first support plate is used to support the heel of the shoe, and the second support plate is used to support the toe of the shoe. The U-shaped openings of the first pad and the second pad together form a clamping groove that matches the shoe, enabling clamping and positioning from both sides of the toe and heel of the shoe.

[0018] The main conveyor line, the first branch conveyor line and the second branch conveyor line mentioned above can also adopt a double-speed chain conveyor device. Its structure and working principle can be found in the specification of Chinese invention patent with publication number CN120327895A.

[0019] As a preferred embodiment of the present invention, the pressing device further includes a blocking mechanism, which is disposed between the two main conveying units of the corresponding main conveyor line and on the rear side of the pressing station. The blocking mechanism is used to block the shoe fixture arriving at the pressing station, ensuring that the shoe fixture is exactly below the opening at the bottom of the sole pressing mechanism; after the sole pressing mechanism completes the sole pressing process, the blocking mechanism releases the shoe fixture, which continues to move under the drive of the main conveyor line.

[0020] The aforementioned blocking mechanism can be a buffer blocking cylinder, and its structure and working principle can be described in the specification of Chinese invention patent with publication number CN219639171U.

[0021] As a further preferred embodiment of the present invention, the shoe sole pressing production line also includes a controller. Multiple detection modules are installed on the main conveyor line, arranged sequentially from front to back. Each detection module is electrically connected to a corresponding input terminal of the controller. The main conveyor line, the first branch conveyor line, the second branch conveyor line, the first transition conveyor mechanism, the second transition conveyor mechanism, the shoe sole pressing mechanism, the shoe tooling lifting mechanism, and the blocking mechanism are each electrically connected to a corresponding output terminal of the controller. Specifically, the detection modules can be photoelectric sensors or proximity switches, and can be located at the front end of the main conveyor line, near the front side of the pressing station, or at the rear end. During operation, each detection module can detect the position of the shoe tooling conveyed on the main conveyor line in real time and send the data to the controller for processing, thereby achieving fully automated conveying and pressing of the shoe tooling.

[0022] As a preferred embodiment of the present invention, a cooler is further provided inside the sole pressing mechanism. The cooler is located inside the sole pressing mechanism and is used to absorb the heat of the hot air inside the sole pressing mechanism to reduce the temperature inside the sole pressing mechanism and realize timely heat dissipation of the air bladder inside the sole pressing mechanism.

[0023] As a further preferred embodiment of the present invention, the pressing device further includes a cooling system, which includes a coolant tank, a water pump, a compressor, a condenser, a receiver, a filter, an expansion valve, and an evaporator. The coolant tank, water pump, compressor, condenser, receiver, filter, expansion valve, and evaporator are mounted on a frame. The coolant tank, the coolant, evaporator, and water pump are connected in series via pipelines to form a coolant circulation loop. The evaporator, compressor, condenser, receiver, filter, and expansion valve are connected in series via pipelines to form a heat exchange loop. During operation, the coolant in the coolant tank is drawn by the water pump and flows sequentially through the coolant, the evaporator, and the water pump before returning to the coolant tank. The refrigerant absorbs heat inside the evaporator and completely vaporizes into a low-temperature, low-pressure gas, which is then sent to the compressor. The compressor pressurizes and heats the gas to become a high-pressure hot gas, which then flows to the condenser. The condenser cools the gas to form a liquid refrigerant, which then flows sequentially through the receiver, filter, and expansion valve to the evaporator for heat absorption and circulation. Thus, the cooling system can rapidly cool the interior of the shoe sole pressing mechanism.

[0024] As a further preferred embodiment of the present invention, the sole pressing mechanism includes an outer cover, a first rubber sleeve, and a second rubber sleeve. The outer cover is mounted on the frame, and the bottom of the outer cover has the opening. The first rubber sleeve is disposed at the opening of the outer cover and is recessed inward. The second rubber sleeve is disposed in the middle of the inner wall of the outer cover. The first rubber sleeve and the second rubber sleeve divide the outer cover into an upper chamber and a lower chamber. The outer cover has an upper air hole and a lower air hole, the upper air hole communicating with the upper chamber and the lower air hole communicating with the lower chamber. The cooler is installed in the upper chamber. During sole bonding, a vacuum is created in the upper and lower chambers through the upper and lower air holes, causing the first rubber sleeve to further indent, forming a space sufficient to accommodate the sole and its surrounding area. The shoe fixture, supported by the shoe fixture lifting mechanism, enters the lower chamber through the opening at the bottom of the outer cover. Compressed air is then introduced into the lower chamber through the lower air hole. The first rubber sleeve expands downwards under the air pressure in the lower chamber, completely enveloping the sole and its surrounding area. The compressed air in the lower chamber applies pressure to the sole and its surrounding area that needs to be bonded through the first rubber sleeve, completing the initial bonding of the sole and its surrounding area. Next, compressed air is introduced into the upper chamber through the upper air hole. The second rubber sleeve expands downwards under the air pressure in the upper chamber, pressing against the first rubber sleeve and further tightening the sole. Simultaneously, because the second rubber sleeve compresses the compressed air in the lower chamber, the pressure of the compressed air in the lower chamber increases, and it also flows outwards, further tightening the surrounding area of ​​the sole through the first rubber sleeve. As can be seen from the above pressing process, because the first rubber sleeve can completely and tightly wrap the sole and its surrounding area, and achieve tight compression through air pressure, the stress on the various parts of the sole and its surrounding area that need to be bonded is quite uniform, and the bonding effect of each part is consistent. Furthermore, the downward compression of the second rubber sleeve further applies pressure to the sole and its surrounding area, making the bonding of the sole and its surrounding area more solid and improving the quality of the shoe. In particular, the pressure on the curved positions at the front and back of the shoe and the sides of the heel is almost the same as that on the bottom surface of the sole, resulting in more uniform bonding.

[0025] As a preferred embodiment of the present invention, the fully automatic sole pressing equipment further includes a housing, and the sole pressing production line is installed inside the housing. The front and rear side panels of the housing are respectively provided with an inlet and an outlet. The inlet corresponds to the inlet end of the shoe tooling conveyor, and the outlet corresponds to the outlet end of the shoe tooling conveyor. During operation, shoe tooling prepared for the sole pressing process can be conveyed to the inlet end of the shoe tooling conveyor through the inlet; shoe tooling that has completed the sole pressing process can leave the outlet end of the shoe tooling conveyor and be conveyed to subsequent processes.

[0026] Compared with the prior art, the present invention has the following advantages: This fully automatic sole pressing equipment can divert the received shoe tooling to different pressing stations through a shoe tooling conveyor. The pressing device automatically completes the sole pressing process of the shoes. Since there is no need to stop and wait before pressing, it can realize high-frequency continuous pressing of the soles. It can meet the production needs when the feeding speed of the feeding production line is fast. It can adapt to the needs of modern and automated mass shoe production, thereby improving work efficiency. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of a fully automatic bottom pressing device according to a preferred embodiment of the present invention.

[0028] Figure 2 yes Figure 1 The diagram shows the structure of the shoe sole pressing production line in the fully automatic sole pressing equipment.

[0029] Figure 3 yes Figure 2 A three-dimensional image.

[0030] Figure 4 yes Figure 2 The diagram shows the structure of the sole pressing device in the shoe sole pressing production line.

[0031] Figure 5 yes Figure 4 AA sectional view.

[0032] Figure 6 yes Figure 4 A three-dimensional image.

[0033] Figure 7 yes Figure 4 The diagram shows the coordination between the shoe tool lifting mechanism and the shoe tool in the bottom pressing device.

[0034] Figure 8 yes Figure 4 The diagram shows the structural schematic of the shoe tooling positioning mechanism in the bottom pressing device.

[0035] Figure 9 yes Figure 2 The diagram shows the coordination between the sole pressing device, the main conveyor line, and the blocking mechanism in the shoe sole pressing production line.

[0036] Figure 10 yes Figure 1 The diagram shows the connection and coordination between the refrigeration unit and the cooling system in the fully automatic bottom pressing equipment. Detailed Implementation

[0037] like Figures 1-10As shown, this fully automatic sole pressing equipment includes a chassis 1 and a sole pressing production line 2. The sole pressing production line 2 is installed inside the chassis 1 and includes a frame 3, a shoe tooling conveyor 4, and two sole pressing devices 5. The shoe tooling conveyor 4 is installed on the frame 3 and includes two main conveyor lines 41, a first branch conveyor line 42, and a second branch conveyor line 43. Each main conveyor line 41 runs forward and backward and is arranged side by side. Each main conveyor line 41 includes two main conveyor units 410 arranged side by side and moving from front to back. The first branch conveyor line 42 is located between the front ends of the two main conveyor lines 41, and the second branch conveyor line 43 is located between the rear ends of the two main conveyor lines 41. A first transition conveyor mechanism 44 is provided on the main conveyor line 41 at a position corresponding to the end of the first branch conveyor line 42, and a second transition conveyor mechanism 45 is provided on the main conveyor line 41 at a position corresponding to the end of the second branch conveyor line 43. The front end of one of the main conveyor lines 41 serves as the shoe tooling conveyor. The inlet end 401 of the device 4 has one main conveyor line 41, the rear end of which serves as the outlet end 402 of the shoe tooling conveying device 4. Two sole pressing devices 5 correspond one-to-one with the two main conveyor lines 41. Each sole pressing device 5 includes a sole pressing mechanism 51, a shoe tooling lifting mechanism 52, and a shoe positioning mechanism 53. The sole pressing mechanism 51 and the shoe tooling lifting mechanism 52 are both mounted on the frame 3. The sole pressing mechanism 51 is located directly above the middle section of the main conveyor line 41. The bottom of the sole pressing mechanism 51 is provided with a shoe positioning mechanism. The inlet and outlet opening 5101, and the pressing station is located directly below the sole pressing mechanism 51; the shoe tooling lifting mechanism 52 is located between the two main conveying units 410 of the main conveying line 41 and at the pressing station; the shoe positioning mechanism 53 is located at the opening 5101 at the bottom of the sole pressing mechanism 51; the front and rear side panels of the machine box 1 are respectively provided with the inlet 101 and the outlet 102, which correspond to the front and rear positions of the same main conveying line 41.

[0038] In this embodiment, both the first transition conveying mechanism 44 and the second transition conveying mechanism 45 include a lifting frame 441 and a position switching cylinder 442. The lifting frame 441 is disposed between the two main conveying units 410 of the main conveying line 41. The cylinder body of the position switching cylinder 442 is mounted on the frame 3, and the piston rod of the position switching cylinder 442 faces upward and is connected to the lifting frame 441. A left-right oriented transition conveyor belt 443 is installed on the lifting frame 441, and the transition conveyor belt 443 corresponds to the end position of the corresponding first branch conveyor line 42 or second branch conveyor line 43. Under normal conditions, the lifting frame 441 and the transition conveyor belt 443 are in a low position, which does not affect the normal conveying of the shoe tooling 200 by the two main conveying units 410 of the main conveyor line 41. When the first transition conveyor mechanism 44 or the second transition conveyor mechanism 45 is required to transfer the shoe tooling 200 to the corresponding first branch conveyor line 42 or second branch conveyor line 43, the position switching cylinder 442 switches the height position of the lifting frame 441, so that the lifting frame 441 and the transition conveyor belt 443 rise to a high position. At this time, the transition conveyor belt 443 is level with the first branch conveyor line 42 or the second branch conveyor line 43, and the position of the transition conveyor belt 443 is higher than the two main conveying units 410 of the main conveyor line 41.

[0039] In this embodiment, the shoe tool lifting mechanism 52 includes a movable pallet 521 and a lifting mechanism 522. The lifting mechanism 522 is mounted on the frame 3. The movable pallet 521 is located between the middle sections of the two main conveying units 410 and directly below the opening 5101 of the sole pressing mechanism 51. The lifting mechanism 522 includes a lifting cylinder 5221, a support plate 5222, two guide sleeves 5223, and two guide posts 5224. The cylinder body of the lifting cylinder 5221 is mounted on the frame 3 and runs vertically. The piston rod of the lifting cylinder 5221 extends upward and is connected to the movable pallet 521. The support plate 5222 is mounted on the top of the cylinder body of the lifting cylinder 5221, and the support plate 5222 is provided with a piston for the lifting cylinder 5221. The rod passes through a through hole 52221. Two guide sleeves 5223 are installed on the support plate 5222 and run vertically. The middle parts of the two guide posts 5224 are respectively located in the corresponding guide sleeves 5223. The upper ends of the two guide posts 5224 are connected to the movable support plate 521. A shoe tool clamping assembly 523 is installed on the movable support plate 521. The shoe tool clamping assembly 523 includes two clamping blocks 5231 and two clamping cylinders 5232. The two clamping blocks 5231 are arranged opposite each other on the upper side of the movable support plate 521. The two clamping cylinders 5232 correspond one-to-one with the two clamping blocks 5231. The cylinder body of the clamping cylinder 5232 is installed on the movable support plate 521. The piston rod of the clamping cylinder 5232 is connected to the clamping block 5231. When a shoe fixture 200 arrives at the pressing station, the bottom plate 201 of the shoe fixture 200 is on the movable support plate 521. The two clamping cylinders 5232 of the shoe fixture clamping assembly 523 drive the two clamping blocks 5231 to move towards each other, clamping the bottom plate 201 of the shoe fixture 200 and stabilizing its position. Subsequently, the lifting cylinder 5221 of the shoe fixture lifting mechanism 52 drives the movable support plate 521 and the shoe fixture 200 to rise (the sliding cooperation between the two guide sleeves 5223 and the two guide posts 5224 makes the lifting movement of the movable support plate 521 more stable), so that the shoe on the shoe fixture 200 enters the shoe sole pressing mechanism 51 from the opening 5101 at the bottom of the shoe sole pressing mechanism 51.

[0040] In this embodiment, the shoe positioning mechanism 53 includes a first shoe support assembly 531, a second shoe support assembly 532, a first translation seat 533, a second translation seat 534, a first translation cylinder 535, and a second translation cylinder 536. The first translation seat 533 and the second translation seat 534 are arranged one in front of the other at the opening 5101 of the sole pressing mechanism 51. The cylinder bodies of the first translation cylinder 535 and the second translation cylinder 536 are both mounted on the frame 3. The piston rod of the first translation cylinder 535 is connected to the first translation seat 533, and the piston rod of the second translation cylinder 536 is connected to the second translation seat 534. The shoe assembly 531 includes a first support plate 5311 and a first pad plate 5312. The first support plate 5311 is mounted on a first translation seat 533, and the first pad plate 5312 is mounted on the first support plate 5311. The second shoe assembly 532 includes a second support plate 5321 and a second pad plate 5322. The second support plate 5321 is mounted on a second translation seat 534, and the second pad plate 5322 is mounted on the second support plate 5321. Both the first pad plate 5312 and the second pad plate 5322 are U-shaped, and the U-shaped opening 5101 of the first pad plate 5312 is opposite to the U-shaped opening 5101 of the second pad plate 5322. During operation, the shoes on the shoe fixture 200 at the pressing station are lifted by the shoe fixture lifting mechanism 52 and enter the sole pressing mechanism 51. Then, the first translation cylinder 535 and the second translation cylinder 536 of the shoe positioning mechanism 53 drive the first translation seat 533 and the second translation seat 534 to move towards each other, causing the first shoe support assembly 531 and the second shoe support assembly 532 to move towards each other. The first shoe support assembly 531 and the second shoe support assembly 532 hold and clamp the shoes. The shoes on the sub-tool 200 are positioned (the first support plate 5311 is used to support the heel of the shoe, the second support plate 5321 is used to support the toe of the shoe, and the U-shaped openings 5101 of the first pad 5312 and the second pad 5322 together form a clamping groove that matches the shoe, which can clamp and position the shoe from both sides of the toe and heel), and work with the sole pressing mechanism 51 to complete the sole pressing process of the shoe, thereby ensuring the quality of sole pressing of the shoe.

[0041] In this embodiment, the sole pressing device 5 also includes a blocking mechanism 54 and a controller (not shown in the figure). The blocking mechanism 54 includes two buffer blocking cylinders 541 arranged side by side. The cylinder bodies of the buffer blocking cylinders 541 are installed between the two main conveying units 410 of the main conveying line 41 and are located on the rear side of the pressing station. Multiple detection modules 56 are installed on the main conveying line 41 in sequence from front to back. Each detection module 56 is electrically connected to the corresponding input terminal of the controller. The main conveying line 41, the first branch conveying line 42, the second branch conveying line 43, the first transition conveying mechanism 44, the second transition conveying mechanism 45, the sole pressing mechanism 51, the shoe tooling lifting mechanism 52, and the blocking mechanism 54 are electrically connected to the corresponding output terminals of the controller. The blocking mechanism 54 is used to block the shoe fixture 200 that is approaching the pressing station, ensuring that the shoe fixture 200 is directly below the opening 5101 at the bottom of the sole pressing mechanism 51. After the sole pressing mechanism 51 completes the sole pressing process, the blocking mechanism 54 releases the shoe fixture 200, which continues to move under the drive of the main conveyor line 41. The detection module 56 can be a photoelectric sensor or a proximity switch, which can be set at the front end of the main conveyor line 41, near the front side of the pressing station, or at the rear end. During operation, each detection module 56 can detect the position of the shoe fixture 200 conveyed on the main conveyor line 41 in real time and send it to the controller for processing, so as to realize the fully automatic conveying and pressing process of the shoe fixture 200.

[0042] In this embodiment, the sole pressing mechanism 51 is further provided with a cooler 58 inside; the sole pressing device 5 also includes a cooling system 59, which includes a coolant tank 591, a water pump 592, a compressor 593, a condenser 594, a liquid receiver 595, a filter 596, an expansion valve 597, and an evaporator 598. The coolant tank 591, water pump 592, compressor 593, condenser 594, liquid receiver 595, filter 596, expansion valve 597, and evaporator 598 are mounted on the frame 3. The coolant tank 591, cooler 58, evaporator 598, and water pump 592 are connected in series through pipes 599 to form a coolant circulation loop. The evaporator 598, compressor 593, condenser 594, liquid receiver 595, filter 596, and expansion valve 597 are connected in series through pipes 599 to form a heat exchange loop. During operation, the coolant in the coolant tank 591 is drawn by the water pump 592 and flows sequentially through the refrigerator 58, the evaporator 598, and the water pump 592 before returning to the coolant tank 591. The refrigerant absorbs heat and completely vaporizes into a low-temperature, low-pressure gas after flowing through the evaporator 598. This gas is then transported to the compressor 593, where it is pressurized and heated to become a high-pressure hot gas. The gas then flows to the condenser 594, where it is cooled to form a liquid refrigerant. This liquid refrigerant then flows sequentially through the receiver 595, the filter 596, and the expansion valve 597 before returning to the evaporator 598 for heat absorption and circulation. The refrigerator 58 is located inside the sole pressing mechanism 51 and is used to absorb the heat from the hot air inside the sole pressing mechanism 51 to reduce the temperature inside the sole pressing mechanism 51. This allows for timely heat dissipation from the air bladder inside the sole pressing mechanism 51, thus enabling the cooling system 59 to rapidly cool the inside of the sole pressing mechanism 51.

[0043] In this embodiment, the sole pressing mechanism 51 includes an outer cover 511, a first rubber sleeve 512, and a second rubber sleeve 513. The outer cover 511 is mounted on the frame 3, and an opening 5101 is provided at the bottom of the outer cover 511. The first rubber sleeve 512 is disposed at the opening 5101 of the outer cover 511 and is recessed inward. The second rubber sleeve 513 is disposed in the middle of the inner wall of the outer cover 511. The first rubber sleeve 512 and the second rubber sleeve 513 divide the outer cover 511 into an upper chamber 5111 and a lower chamber 5112. The outer cover 511 is provided with an upper air hole and a lower air hole. The upper air hole communicates with the upper chamber 5111, and the lower air hole communicates with the lower chamber 5112. The cooler 58 is installed in the upper chamber 5111. During sole pressing, a vacuum is created in the upper chamber 5111 and lower chamber 5112 through the upper and lower air holes, causing the first rubber sleeve 512 to further indent, forming a space sufficient to accommodate the sole and its surrounding area. The shoe fixture 200, supported by the shoe fixture lifting mechanism 52, enters the lower chamber 5112 through the opening 5101 at the bottom of the outer cover 511. Compressed air is introduced into the lower chamber 5112 through the lower air hole. The first rubber sleeve 512 expands downwards due to the air pressure in the lower chamber 5112, completely enclosing the sole and its surrounding area. The compressed air in the lower chamber 5112... The first rubber sleeve 512 applies pressure to the sole and the surrounding area that needs to be bonded, completing the initial pressing of the sole and the surrounding area. Then, compressed air is introduced into the upper chamber 5111 through the upper air hole. The second rubber sleeve 513 expands downward due to the air pressure in the upper chamber 5111 and presses on the first rubber sleeve 512, further pressing the sole. At the same time, because the second rubber sleeve 513 squeezes the compressed air in the lower chamber 5112, the pressure of the compressed air in the lower chamber 5112 increases and flows to the surrounding area, further pressing the surrounding area of ​​the sole through the first rubber sleeve 512. As can be seen from the above pressing process, since the first rubber sleeve 512 can completely and tightly wrap the sole and its periphery, and achieve tight pressing through air pressure, the stress on the various parts of the sole and its periphery that need to be bonded is quite uniform, and the bonding effect of each part is consistent. Furthermore, the downward pressing of the second rubber sleeve 513 further applies pressure to the sole and its periphery, making the bonding of the sole and its periphery more solid and improving the quality of the shoe. In particular, the pressure on the curved positions of the toe and the sides of the heel is almost the same as that on the bottom surface of the sole, resulting in more uniform bonding.

[0044] The working principle of this fully automatic bottom pressing device is briefly described below: The sole pressing production line 2 can be equipped with multiple shoe fixtures 200. Each shoe fixture 200 includes a sole plate 201 and a shoe last 202 mounted on the sole plate 201. The shoes to be pressed can be pre-fitted onto the shoe last 202 and then conveyed by the sole pressing production line 2. The sole pressing production line 2 has an infeed production line and an outfeed production line on its front and rear sides, respectively. The outlet end of the infeed production line is connected to the inlet end 401 of the shoe fixture conveying device 4, and the inlet end of the outfeed production line is connected to the outlet end 402 of the shoe fixture conveying device 4.

[0045] During operation, the feeding production line first transports shoe fixtures 200, each containing shoes, to the inlet end 401 of the shoe fixture conveying device 4 through the inlet 101. Then, the shoe fixture conveying device 4, via two main conveying units 410, moves the shoe fixtures 200 from front to back to the pressing station (the bottom plate 201 of the shoe fixture 200 is supported at both ends by the two main conveying units 410 of the main conveying line 41). Alternatively, the shoe fixtures 200 can be transferred to the first branch conveying line 42 via the first transition conveying mechanism 44 at the front end of the main conveying line 41, and then transferred to the front end of another adjacent main conveying line 41 via the corresponding first transition conveying mechanism 44. This process diverts the shoe fixtures 200 to different main conveying lines 41, which then transport the shoe fixtures 200 to the corresponding pressing station via two main conveying units 410 (the bottom plate 201 of the shoe fixture 200 is supported at both ends by the two main conveying units 410 of the main conveying line 41). Unit 410 supports the shoe fixture 200 together; after the shoe fixture 200 reaches the pressing station, it is stopped from moving (the blocking mechanism 54 is used to block the shoe fixture 200 that has reached the pressing station, ensuring that the shoe fixture 200 is exactly at the pressing station), and then the shoe fixture lifting mechanism 52 lifts the shoe fixture 200 at the pressing station, so that the shoe on the shoe fixture 200 enters the shoe sole pressing mechanism 51 from the opening 5101 at the bottom of the shoe sole pressing mechanism 51; after the shoe sole pressing process is completed, the shoe fixture lifting mechanism 52 lowers and resets, so that the shoe fixture 200 returns to the main conveyor line 41 to continue conveying; finally, the shoe fixtures 200 that have completed the shoe sole pressing process on each main conveyor line 41 can be transferred to the outlet end 402 of the shoe fixture conveying device 4 through the corresponding second transition conveyor 45 and the second branch conveyor line 43, and then transferred to the next process by the discharge production line after passing through the discharge port 102.

[0046] Furthermore, it should be noted that the names of the various parts of the specific embodiments described in this specification may differ. All equivalent or simple variations made to the structure, features, and principles of this invention are included within the scope of protection of this invention. Those skilled in the art can make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not deviate from the structure of this invention or exceed the scope defined by the claims, all of which should fall within the scope of protection of this invention.

Claims

1. A fully automatic bottom pressing device, characterized in that: The system includes a shoe sole pressing production line, comprising a frame, a shoe tooling conveyor, and at least two pressing devices. The shoe tooling conveyor is mounted on the frame and includes at least two main conveyor lines, at least one first branch conveyor line, and at least one second branch conveyor line. Each main conveyor line runs forward and backward, arranged sequentially from left to right. Each main conveyor line includes two main conveyor units arranged side-by-side and moving from front to back. The first branch conveyor line is positioned between the front ends of two adjacent main conveyor lines, and the second branch conveyor line is positioned between the rear ends of two adjacent main conveyor lines. First transition conveyor mechanisms are respectively installed on the main conveyor lines at positions corresponding to the ends of the first branch conveyor lines. A second transition conveyor mechanism is provided at the position corresponding to the end of the second conveyor line; the front end of one main conveyor line serves as the inlet end of the shoe tooling conveyor, and the rear end of one main conveyor line serves as the outlet end of the shoe tooling conveyor; the number of pressing devices is the same as that of the main conveyor lines and they correspond one-to-one. The pressing device includes a sole pressing mechanism and a shoe tooling lifting mechanism. Both the sole pressing mechanism and the shoe tooling lifting mechanism are installed on the frame. The sole pressing mechanism is located directly above the middle section of the main conveyor line. The bottom of the sole pressing mechanism has an opening for shoes to enter and exit, and a pressing station is located directly below the sole pressing mechanism; the shoe tooling lifting mechanism is located between the two main conveyor units of the main conveyor line and at the pressing station.

2. The fully automatic bottom pressing device according to claim 1, characterized in that: Both the first and second transition conveying mechanisms include a lifting frame and a position switching mechanism capable of switching the height of the lifting frame. The lifting frame is located between two main conveying units of the corresponding main conveying line. A left-right oriented transition conveyor belt is installed on the lifting frame, and the transition conveyor belt corresponds to the end position of the corresponding first or second branch conveyor line.

3. The fully automatic bottom pressing device according to claim 1, characterized in that: The shoe tooling lifting mechanism includes a movable pallet and a lifting mechanism for driving the movable pallet to rise and fall. The lifting mechanism is mounted on the frame. The movable pallet is located between the middle sections of the two main conveying units and directly below the opening of the sole pressing mechanism. A shoe tooling clamping assembly is mounted on the movable pallet.

4. The fully automatic bottom pressing device according to claim 3, characterized in that: The lifting mechanism includes a lifting cylinder, a support plate, two guide sleeves, and two guide columns. The cylinder body of the lifting cylinder is mounted on the frame and runs vertically. The piston rod of the lifting cylinder extends upward and is connected to the movable support plate. The support plate is mounted on the top of the cylinder body of the lifting cylinder and has a through hole through which the piston rod of the lifting cylinder can pass. The two guide sleeves are mounted on the support plate and run vertically. The middle parts of the two guide columns are respectively located in the corresponding guide sleeves, and the upper ends of the two guide columns are connected to the movable support plate. The shoe tooling clamping assembly includes two clamping blocks and two clamping cylinders. The two clamping blocks are arranged opposite each other on the upper side of the movable support plate. The two clamping cylinders correspond one-to-one with the two clamping blocks. The cylinder body of the clamping cylinder is mounted on the movable support plate and runs back-to-fore. The piston rod of the clamping cylinder is connected to the corresponding clamping block.

5. The fully automatic bottom pressing device according to claim 1, characterized in that: The sole pressing device also includes a shoe positioning mechanism, which includes a first slipper assembly, a second slipper assembly, and an opening and closing control mechanism for driving the first slipper assembly and the second slipper assembly to perform opening and closing actions. The opening and closing control mechanism is installed on the frame, and the first slipper assembly and the second slipper assembly are arranged opposite each other at the opening of the sole pressing mechanism.

6. The fully automatic bottom pressing device according to claim 5, characterized in that: The opening and closing control mechanism includes a first translation seat, a first translation mechanism for driving the first translation seat to translate left and right, a second translation seat, and a second translation mechanism for driving the second translation seat to translate left and right. The first translation mechanism and the second translation mechanism are both mounted on the frame. The first slipper assembly includes a first tray and a first pad. The first tray is mounted on the first translation seat, and the first pad is mounted on the first tray. The second slipper assembly includes a second tray and a second pad. The second tray is mounted on the second translation seat, and the second pad is mounted on the second tray. The first pad and the second pad are both U-shaped, and the U-shaped opening of the first pad is opposite to the U-shaped opening of the second pad.

7. The fully automatic bottom pressing device according to claim 1, characterized in that: The sole pressing device also includes a blocking mechanism, which is disposed between two main conveying units of the corresponding main conveyor line and on the rear side of the pressing station; the sole pressing production line also includes a controller, and multiple detection modules are installed on the main conveyor line in a sequential arrangement from front to back. Each detection module is electrically connected to the corresponding input terminal of the controller. The main conveyor line, the first branch conveyor line, the second branch conveyor line, the first transition conveyor mechanism, the second transition conveyor mechanism, the sole pressing mechanism, the shoe tooling lifting mechanism, and the blocking mechanism are electrically connected to the corresponding output terminals of the controller.

8. The fully automatic bottom pressing device according to claim 1, characterized in that: The sole pressing mechanism is also equipped with a cooler; the sole pressing device also includes a cooling system, which includes a coolant tank, a water pump, a compressor, a condenser, a receiver, a filter, an expansion valve, and an evaporator. The coolant tank, water pump, compressor, condenser, receiver, filter, expansion valve, and evaporator are mounted on a frame. The coolant tank, cooler, evaporator, and water pump are connected in series through pipelines to form a coolant circulation loop. The evaporator, compressor, condenser, receiver, filter, and expansion valve are connected in series through pipelines to form a heat exchange loop.

9. The fully automatic bottom pressing device according to claim 8, characterized in that: The sole pressing mechanism includes an outer cover, a first rubber sleeve, and a second rubber sleeve. The outer cover is mounted on the frame, and an opening is provided at the bottom of the outer cover. The first rubber sleeve is located at the opening of the outer cover and is recessed inward. The second rubber sleeve is located in the middle of the inner wall of the outer cover. The first and second rubber sleeves divide the outer cover into an upper chamber and a lower chamber. The outer cover has an upper air hole and a lower air hole, with the upper air hole communicating with the upper chamber and the lower air hole communicating with the lower chamber. The cooler is installed in the upper chamber.

10. The fully automatic bottom pressing device according to claim 1, characterized in that: The fully automatic sole pressing equipment also includes a machine box, and the shoe sole pressing production line is installed inside the machine box. The front side plate and the rear side plate of the machine box are respectively provided with a feed port and a discharge port. The feed port corresponds to the inlet end of the shoe tooling conveying device, and the discharge port corresponds to the outlet end of the shoe tooling conveying device.

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