Lining turning device and turning method thereof

Abstract

The present invention relates to a shoe-making device, particularly a lining turning device, comprising: a lining chuck for clamping the lining; the bottom of the turning lifting plate is rotatably connected to the lining chuck; one end of the turning frame is rotatably connected to the tail of the lining chuck; the lower turning fixing device is fixed on the turning frame and used to control whether the lining chuck turns; the turning lifting plate is slidably installed on the turning bottom plate; the upper turning fixing device is installed on the turning bottom plate and used to fix the position of the turning lifting plate when the lining chuck turns, thereby defining the turning position; and a turning cylinder, one end of the turning cylinder is rotatably installed on the turning bottom plate, and the other end is rotatably installed on the turning frame. The lining turning device provided by the present invention can clamp the lining and straighten it for convenient gluing, and then turn the lining to the inside of the shoe upper, realizing the turning of the lining, providing a basis for automation, and having a simple structure and convenient control.

Description

Technical Field

[0001] The present invention relates to a shoe-making device, in particular to a lining turning device and a turning method thereof. Background Art

[0002] The upper of a sports shoe includes an upper and a lining. The upper and the lining of a running shoe are sewn together along the shoe mouth, and when sewing, the lining is wrapped outside the upper. After sewing, the lining is turned to the inside of the upper to form the shoe mouth, and the sewing part is located inside, which does not affect the appearance. Therefore, the upper with the sewn lining needs to turn the lining to the inside of the upper and bond them together with glue. Glue needs to be applied to the inside of the upper, then the lining is turned to the inside of the upper, and the lining is pressed tightly against the inside of the upper to fix the lining.

[0003] Currently, the turning of the lining is all carried out manually. Manual turning has low efficiency, requires more workers, reduces the degree of automation, and results in higher costs. How to achieve automatic turning of the lining to approach automation is the first problem to be solved. Summary of the Invention

[0004] To solve the above problems, the present invention provides a lining turning device that can automatically turn the lining, and has a simple structure and reliable operation. The specific technical solution is as follows:

[0005] The lining turning device includes: a lining chuck for clamping the lining; a turning lifting plate, the bottom of the turning lifting plate is rotatably connected to the lining chuck; a turning frame, one end of the turning frame is rotatably connected to the tail of the lining chuck; a lower turning fixing device fixed on the turning frame for controlling whether the lining chuck turns; a turning bottom plate, the turning lifting plate is slidably installed on the turning bottom plate; an upper turning fixing device installed on the turning bottom plate for fixing the position of the turning lifting plate when the lining chuck turns and limiting the turning position; and a turning cylinder, one end of the turning cylinder is rotatably installed on the turning bottom plate, and the other end is rotatably installed on the turning frame.

[0006] By adopting the above technical solution, the turning of the lining is carried out above the shoe mouth. Therefore, it is necessary to first lift the lining above the shoe mouth. The turning cylinder first drives the lining chuck to rise to the turning position, then turns, and after turning, the lining is inserted into the inside of the shoe mouth again, so that the lining is closely attached to the inside of the upper, the lining is released, and the turning of the lining is completed. The turning cylinder drives the lining chuck to rise above the shoe mouth.

[0007] The lining chuck first clamps the edge of the lining. The lower flipping fixing device first fixes the lining chuck, and the lining chuck cannot flip. The flipping cylinder retracts, and the lining chuck rises. When it rises to the flipping position, the upper flipping fixing device fixes the flipping lifting plate, and the lower flipping fixing device releases the lining chuck. The lining chuck flips to flip the edge of the lining from a downward state to an upward state. After the flipping is completed, the upper flipping fixing device releases the flipping lifting plate, the flipping cylinder continues to retract, and the flipping lifting plate continues to rise to the highest position to straighten the lining for convenient glue application. Then the flipping cylinder extends to insert the lining into the inside of the shoe opening, making the lining fit inside the shoe upper. Finally, the flipping cylinder drives the lining chuck to rise above the shoe opening for easy removal of the shoe upper.

[0008] The flipping cylinder can be used not only to flip the lining chuck but also to realize the lifting of the lining chuck. One flipping cylinder realizes multiple functions, greatly simplifies the structure, makes the structure compact, occupies less space, and has simple control.

[0009] Further, the lining chuck includes: a fixed chuck, on which there are a pneumatic chamber, an air inlet hole, and a spring hole, and the pneumatic chamber communicates with the air inlet hole; a chuck piston, which is slidably inserted into the pneumatic chamber; a first rotating shaft, which is rotatably installed on the fixed chuck; a second rotating shaft, which is rotatably installed at the tail of the fixed chuck; a movable chuck, which is rotatably installed on the first rotating shaft and is arranged opposite to the fixed chuck, and the chuck piston is used to drive the movable chuck to press against the fixed chuck; and an opening spring, which is movably inserted into the spring hole and is located between the movable chuck and the fixed chuck, and the opening spring is used to drive the movable chuck to open.

[0010] By adopting the above technical solution, after high-pressure air is introduced into the air inlet hole, it pushes the chuck piston to press the movable chuck against the fixed chuck to clamp the lining. When the air inlet hole exhausts air, the opening spring pushes the movable chuck open to open the chuck. The structure is simple, compact, occupies less space, is convenient to control, and is convenient to insert into the shoe opening.

[0011] When the lining chuck clamps the lining, it can provide a relatively large pressure, and it can automatically open the lining chuck when the air supply is cut off.

[0012] The movable chuck realizes clamping through a lever, and the clamping force is relatively large.

[0013] Further, on both sides of the fixed chuck, there are a first chuck positioning block and a second chuck positioning block, and the first chuck positioning block and the second chuck positioning block are respectively located on both sides of the first rotating shaft.

[0014] By adopting the above technical solutions, the first chuck positioning block and the second chuck positioning block can accurately position the lining chuck, avoiding the problem that the non-fixed turning position affects the clamping of the lining, and making the overall structure simple and the operation stable.

[0015] Furthermore, the lower turning fixing device includes: a lower positioning cylinder fixed on the turning frame; and a lower positioning block fixed on the piston rod of the lower positioning cylinder and movably inserted into the lower positioning chute of the turning frame. The lower positioning block is used to press against the fixed chuck through the lower positioning cylinder to limit the rotation of the lining chuck.

[0016] By adopting the above technical solutions, the lower positioning cylinder can conveniently limit the turning of the lining chuck through the lower positioning block, with a simple structure and convenient control.

[0017] Furthermore, the lower positioning block is provided with a first positioning surface and a second positioning surface. The first positioning surface is used to limit the turning of the lining chuck before turning, and the second positioning surface is used to limit the turning of the lining chuck after the lining is turned.

[0018] By adopting the above technical solutions, the positioning surface has a large contact area with the fixed chuck, which can effectively prevent the fixed chuck from turning after being stressed and ensure reliability.

[0019] Furthermore, the upper turning fixing device includes: an upper positioning cylinder fixed on the turning bottom plate; and an upper positioning rod fixed on the upper positioning cylinder and movably inserted into the turning bottom plate. The turning lifting plate is provided with an upper turning positioning hole matching the upper positioning rod, and the upper positioning rod is used to insert into or pull out of the upper turning positioning hole through the upper positioning cylinder.

[0020] By adopting the above technical solutions, when the upper positioning rod is inserted into the turning lifting plate, since the upper positioning rod is also inserted into the turning bottom plate, the position of the turning lifting plate can be fixed, enabling the turning cylinder to turn.

[0021] Furthermore, it further includes: an upper sliding frame fixed on the turning bottom plate, with the upper positioning cylinder fixed on the upper sliding frame; and an upper linkage frame, one end of which is connected to the piston rod of the upper positioning cylinder and the other end is equipped with the upper positioning rod.

[0022] By adopting the above technical solutions, the upper sliding frame and the upper linkage frame prevent the turning cylinder from interfering with the upper positioning rod, making the structure compact.

[0023] Furthermore, it further includes an elastic device fixed on the turning frame and corresponding to the turning lifting plate, which is used to lift the turning frame when resetting after turning.

[0024] By adopting the above technical solution, when the lining chuck flips to a position close to the vertical state, the lining chuck is at a dead point, and the flipping cylinder cannot push the lining chuck to flip. However, the elastic device can lift the lining chuck, causing the lining chuck to rotate by a certain angle and leave the dead point, enabling the flipping cylinder to perform normal flipping.

[0025] Furthermore, it further includes a flipping detection device. The flipping detection device includes: a first flipping sensor fixed on the flipping frame; a second flipping sensor fixed on the flipping frame and located below the first flipping sensor; a flipping detection plate provided with a first detection rod and a second detection rod thereon. When the lining chuck has not flipped, the first flipping sensor is disposed opposite to the second detection rod, and when the lining chuck has flipped, the second flipping sensor is disposed opposite to the first detection rod.

[0026] By adopting the above technical solution, the first flipping sensor and the second flipping sensor are used to determine the position of the lining chuck to prevent misoperation.

[0027] A method for flipping a lining, comprising the following steps:

[0028] S1. Clamp the lining. The lining chuck clamps the edge of the lining, the lower flipping fixing device starts to lock the lining chuck, and the upper flipping fixing device releases the flipping lifting plate.

[0029] S2. Rise to the flipping position. The flipping cylinder retracts, raising the lining chuck to a position not lower than the shoe mouth.

[0030] S3. Flip the lining. The upper flipping fixing device locks the flipping lifting plate, the lower flipping fixing device releases the lining chuck, the flipping cylinder continues to retract, and the flipping cylinder drives the lining chuck to flip around the first rotation axis, flipping the edge of the lining to an upward vertical state.

[0031] S4. Straighten the lining. The upper flipping fixing device releases the flipping lifting plate, the lower flipping fixing device locks the lining chuck, the flipping cylinder continues to retract to the highest point to straighten the lining.

[0032] S5. Insert the lining. The flipping cylinder extends to the lowest point and inserts the lining into the interior of the shoe upper.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] The lining flipping device provided by the present invention can clamp the lining and straighten it for convenient gluing, and then flip the lining into the interior of the shoe upper, realizing the flipping of the lining, providing a basis for automation, and having a simple structure and convenient control. Description of the Drawings

[0035] Figure 1 is a schematic structural view of the lining turnover device;

[0036] Figure 2 is a front view of the lining turnover device;

[0037] Figure 3 is along Figure 2 a sectional view taken along line D-D in

[0038] Figure 4 is a schematic structural view of the lining chuck;

[0039] Figure 5 is a sectional view of the lining chuck;

[0040] Figure 6 is a schematic assembly structural view of the lower turnover fixing device, the turnover frame and the lining chuck;

[0041] Figure 7 is a schematic structural view of the lower positioning block;

[0042] Figure 8 is a schematic view of the operation of the turnover device;

[0043] Figure 9 is a schematic structural view of the turnover detection device when the lining chuck is in the initial state to the turnover state. Detailed implementation mode

[0044] The present invention will be further described below in conjunction with the accompanying drawings.

[0045] Embodiment 1

[0046] As Figures 1 to 8 shown, the lining turnover device includes: a lining chuck for clamping the lining; a turnover lifting plate 618, the bottom of the turnover lifting plate 618 is rotatably connected to the lining chuck; a turnover frame 631, one end of the turnover frame 631 is rotatably connected to the tail of the lining chuck; a lower turnover fixing device fixed on the turnover frame 631 for controlling whether the lining chuck turns over; a turnover bottom plate 612, the turnover lifting plate 618 is slidably installed on the turnover bottom plate 612; an upper turnover fixing device installed on the turnover bottom plate 612 for fixing the position of the turnover lifting plate 618 when the lining chuck turns over and limiting the turnover position; and a turnover cylinder 621, one end of the turnover cylinder 621 is rotatably installed on the turnover bottom plate 612, and the other end is rotatably installed on the turnover frame 631.

[0047] The lining is turned above the shoe opening, so the lining needs to be lifted above the shoe opening first. The turning cylinder 621 drives the lining chuck to rise to the turning position first, then turns, and after turning, inserts the lining into the inside of the shoe opening, making the lining close to the inside of the shoe upper, releases the lining, and completes the turning of the lining. The turning cylinder 621 drives the lining chuck to rise above the shoe opening.

[0048] The lining chuck first clamps the edge of the lining, and the lower turning fixing device first fixes the lining chuck so that the lining chuck cannot turn. The turning cylinder 621 retracts, and the lining chuck rises. When it rises to the turning position, the upper turning fixing device fixes the turning lifting plate 618, and the lower turning fixing device releases the lining chuck. The lining chuck turns to turn the edge of the lining from the downward state to the upward state. After turning, the upper turning fixing device releases the turning lifting plate 618. The turning cylinder 621 continues to retract, and the turning lifting plate 618 continues to rise to the highest position to straighten the lining for easy gluing. Then the turning cylinder 621 extends to insert the lining into the inside of the shoe opening, making the lining fit the inside of the shoe upper. Finally, the turning cylinder 621 drives the lining chuck to rise above the shoe opening to facilitate the removal of the shoe upper.

[0049] The turning cylinder 621 can be used to turn the lining chuck and also realizes the lifting of the lining chuck. One turning cylinder 621 realizes multiple functions, greatly simplifies the structure, makes the structure compact, occupies a small space, and has simple control.

[0050] As Figure 4 and Figure 5 shown, the lining chuck includes: a fixed chuck 51, on which there are a pneumatic chamber 511, an air inlet hole 512, and a spring hole 515, and the pneumatic chamber 511 communicates with the air inlet hole 512; a chuck piston 52, which is slidably inserted into the pneumatic chamber 511; a first rotating shaft 55, which is rotatably installed on the fixed chuck 51; a second rotating shaft 56, which is rotatably installed at the tail of the fixed chuck 51; a movable chuck 53, which is rotatably installed on the first rotating shaft 55 and is arranged opposite to the fixed chuck 51, and the chuck piston 52 is used to drive the movable chuck 53 to press against the fixed chuck 51; and an opening spring 54, which is movably inserted into the spring hole 515 and is located between the movable chuck 53 and the fixed chuck 51, and the opening spring 54 is used to drive the movable chuck 53 to open.

[0051] After high-pressure air is introduced into the air inlet hole 512, it pushes the chuck piston 52 to press the movable chuck 53 against the fixed chuck 51 to clamp the lining. When the air inlet hole 512 exhausts, the opening spring 54 pushes the movable chuck 53 to open to realize the opening of the chuck. The structure is simple, compact, occupies a small space, is convenient to control, and is convenient to insert into the shoe opening.

[0052] When the lining chuck clamps the lining, it can generate a relatively large pressure and can automatically open the lining chuck when the air supply is cut off.

[0053] The movable chuck 53 is clamped by a lever, and the clamping force is relatively large.

[0054] The first rotating shaft 56 is located in the middle of the movable chuck 53. The opening spring 54 is close to the rotating connection, with a small elastic force, which reduces the cross-sectional area of the chuck piston 52. The movable chuck 53 is clamped by a lever, and the clamping force is relatively large.

[0055] In at least one embodiment, the lining chuck can also adopt a micro electric gripper or a pneumatic gripper.

[0056] In at least one embodiment, the movable chuck 53 and / or the fixed chuck 51 are provided with chuck anti-slip lines. The chuck anti-slip lines increase the friction force to ensure clamping of the lining.

[0057] In at least one embodiment, the top of the chuck piston 52 is hemispherical.

[0058] The hemispherical shape has a small friction force, making the opening and closing of the movable chuck 53 smooth.

[0059] In at least one embodiment, the chuck piston 53 is equipped with a gasket and / or a sealing ring.

[0060] In at least one embodiment, a bearing is installed between the first rotating shaft 55 and the fixed chuck 51, and the first rotating shaft 55 is fixed on the movable chuck 53. Bearings are installed between the second rotating shaft 56 and both the flipping and lifting plate 618 and the fixed chuck 51.

[0061] In at least one embodiment, the first chuck positioning block 514 and the second chuck positioning block 513 are provided on both sides of the fixed chuck 51, and the first chuck positioning block 514 and the second chuck positioning block 513 are respectively located on both sides of the first rotating shaft 55.

[0062] The first chuck positioning block 514 and the second chuck positioning block 513 can accurately position the position of the lining chuck, avoiding the influence of the unfixed flipping position on the clamping of the lining, and making the overall structure simple and the operation stable. The first chuck positioning block 514 is used for positioning in the initial state of the lining chuck, that is, limiting the lining chuck when starting to clamp the lining to ensure that the lining chuck can smoothly clamp the lining. The second chuck positioning block 513 is used for positioning after the lining chuck clamps the lining and flips, so that the lining chuck is almost in a vertical state after flipping, thereby ensuring that the back of the lining can be straightened, facilitating gluing of the lining.

[0063] The lower flipping fixing device includes: a lower positioning cylinder 633 which is fixed on the flipping frame 631; and a lower positioning block 632 which is fixed on the piston rod of the lower positioning cylinder 633 and is movably inserted into the lower positioning chute of the flipping frame 631. The lower positioning block 632 is used to press against the fixed chuck 51 through the lower positioning cylinder 633 to restrict the rotation of the lining chuck.

[0064] The lower positioning cylinder 633 facilitates the restriction of the flipping of the lining chuck through the lower positioning block 632, with a simple structure and convenient control.

[0065] In at least one embodiment, the lower positioning block 632 is provided with a first positioning surface 6322 and a second positioning surface 6321. The first positioning surface 6322 is used to restrict the flipping of the lining chuck before flipping, and the second positioning surface 6321 is used to restrict the flipping of the lining chuck after flipping.

[0066] The contact area between the positioning surface and the fixed chuck 51 is large, which can effectively prevent the fixed chuck 51 from flipping after being stressed and ensure reliability.

[0067] The upper flipping fixing device includes: an upper positioning cylinder 624 which is fixed on the flipping bottom plate 612; and an upper positioning rod 620 which is fixed on the upper positioning cylinder 624 and is movably inserted into the flipping bottom plate 612. The flipping lifting plate 618 is provided with an upper flipping positioning hole 6181 matching the upper positioning rod 620, and the upper positioning rod 620 is used to insert into or pull out of the upper flipping positioning hole 6181 through the upper positioning cylinder 624.

[0068] When the upper positioning rod 620 is inserted into the flipping lifting part, since the upper positioning rod 620 is also inserted into the flipping bottom plate 612, the position of the flipping lifting plate 618 can be fixed, enabling the flipping cylinder 621 to perform flipping.

[0069] When the lining chuck is in the initial state, the first chuck positioning block 514 presses against the outside of the flipping lifting plate 618, and the lower positioning block 632 presses against the fixed chuck 51 under the action of the lower positioning cylinder 633. The first chuck positioning block 514 and the lower positioning block 632 fix the relative position of the lining chuck and the flipping frame 631, preventing the lining chuck from rotating; when the lower positioning block 632 releases the fixed chuck 51, the lining chuck can rotate. After the lining chuck flips and is in a downward vertical state, the second chuck positioning block 513 presses against the inside of the flipping lifting plate 618, and the second chuck positioning block 513 and the lower positioning block 632 fix the relative position of the lining chuck and the flipping frame 631, preventing the lining chuck from rotating.

[0070] In at least one embodiment, bearings are installed on both sides of the upper turning positioning hole 6181. The bearings can make the insertion and extraction of the upper positioning rod 620 smooth, with small friction, avoid jamming, and improve stability.

[0071] In at least one embodiment, it further includes: a first positioning plate 615, which is fixed on the turning bottom plate 612; a second positioning plate 613, which is fixed on the turning lifting plate 618 and is located above the first positioning plate 615; and a third positioning plate 614, which is fixed on the turning lifting plate 618 and is located below the first positioning plate 615.

[0072] The positioning plates can limit the highest and lowest positions of the lining chuck, and at least ensure that the edge of the lining can be accurately clamped. The highest position is when the lining is stretched to a straight state, avoiding the change of the upper vamp position due to too high a straightening position.

[0073] Compared with the positioning using the maximum extended position and the minimum retracted position of the cylinder in the prior art, the positioning is more accurate and the impact on the cylinder is small.

[0074] One positioning plate is installed on the turning bottom plate 612, and two positioning plates are installed on the turning lifting plate 618, minimizing the number of positioning plates and making installation and use convenient.

[0075] During operation, the horizontal movement cylinder and the vertical movement cylinder are both in the retracted state. The lining chuck is located outside the shoe upper. First, the shoe upper is fixed on the shoe upper mold. The lining chuck surrounds the outside of the shoe upper and is in the open state. The edge of the lining is inserted between the fixed chuck 51 and the movable chuck 53 of the lining chuck. Then, the air inlet hole 512 is ventilated, and the chuck piston 52 pushes up the movable chuck 53, and the movable chuck 53 presses the lining against the fixed chuck 51. At this time, the lining chuck is at the lowest position, the upper positioning cylinder 624 is in the retracted state, the flipping lifting plate 618 is in the state of being able to lift and lower, the lower positioning cylinder 633 is in the extended state, and the lower positioning block 632 presses against the fixed chuck 51. The position of the fixed chuck 51 is relatively fixed with respect to the flipping frame 631, and the fixed chuck 51 cannot rotate around the second rotating shaft 56. Then, the flipping cylinder 621 starts to retract. Since the relative position of the lining chuck and the flipping frame 631 is fixed, the lining chuck drives the flipping lifting plate 618 to rise. When the lining chuck rises to the flipping position, that is, it rises to no lower than the shoe mouth of the shoe upper, so that the flipping of the lining chuck is not affected. The upper positioning cylinder 624 extends, and the upper positioning rod 620 is inserted into the upper flipping positioning hole 6181 of the flipping lifting plate 618. The position of the flipping lifting plate 618 is fixed and cannot be lifted and lowered. Then, the lower positioning cylinder 633 retracts, and the lower positioning block 632 leaves the fixed chuck 51. The fixed chuck 51 can rotate around the second rotating shaft 56. The flipping cylinder 621 continues to retract, and the fixed chuck 51 is driven by the flipping cylinder 621 to rotate. The lining chuck is flipped from the obliquely upward state to the vertically downward state, completing the flipping of the lining. The lower positioning cylinder 633 extends to press the lower positioning block 632 against the fixed chuck 51, and the position of the lining chuck is fixed and cannot rotate. Then, both the horizontal movement cylinder and the vertical movement cylinder extend, and the lining chuck is moved directly above the shoe mouth. The upper positioning cylinder 624 retracts, and the upper positioning rod 620 is pulled out of the upper flipping positioning hole 6181. The flipping cylinder 621 is still in the retracted state. Therefore, the flipping lifting plate 618 continues to rise until it rises to the highest point. At this time, the lining is straightened to facilitate gluing the lining. After the gluing is completed, the flipping cylinder 621 extends, and the flipping cylinder 621 drives the lining chuck to descend to the lowest point, pressing the lining against the inside of the shoe upper, so that the lining is bonded to the inside of the shoe upper through glue. Then, the air inlet hole 512 exhausts air, and the movable chuck 53 leaves the fixed chuck 51 under the action of the expansion spring 54, releasing the lining, completing the flipping and fitting of the lining. Finally, the flipping cylinder 621 retracts to drive the lining chuck to rise to the flipping position or the highest point. Then, the horizontal movement cylinder and the vertical movement cylinder drive the lining chuck to move to the outside of the shoe upper, flip the lining chuck again, flip the lining chuck to the initial upward state, remove the shoe upper, load a new shoe upper with the lining to be flipped, and lower the lining chuck to the edge of the lining to clamp the lining and continue to flip. When the lining chuck is raised to the flipping position, the upper positioning cylinder 624 extends, enabling the lining chuck to move and flip at the flipping position, reducing the stroke of the flipping lifting plate 618 and improving the efficiency.

[0076] Embodiment 2

[0077] On the basis of the above Embodiment 1, it further includes: an upper sliding frame 622, the upper sliding frame 622 is fixed on the flipping bottom plate 612, and an upper positioning cylinder 624 is fixed on the upper sliding frame 622; and an upper linkage frame 623, one end of the upper linkage frame 623 is connected to the piston rod of the upper positioning cylinder 624, and the other end is equipped with an upper positioning rod 620.

[0078] The upper sliding frame 622 and the upper linkage frame 623 prevent the flipping cylinder 621 from interfering with the upper positioning rod 620, making the structure compact.

[0079] Due to the relatively small shoe mouth, the upper sliding frame 622 and the upper linkage frame 623 can change the position of the upper positioning rod 620, enabling multiple flipping devices to be used in combination to ensure the complete flipping of the lining.

[0080] Embodiment 3

[0081] On the basis of any one of the above embodiments, it further includes an elastic device 634. The elastic device 634 is fixed on the flipping frame 631 and corresponds to the flipping lifting plate 618, and is used to lift the flipping frame 631 when resetting after flipping.

[0082] When the lining chuck flips to a state close to the vertical state, the lining chuck is at a dead point, and the flipping cylinder 621 cannot push the lining chuck to flip. However, the elastic device 634 can lift the lining chuck, enabling the lining chuck to rotate a certain angle, leaving the dead point, and the flipping cylinder 621 can normally push the lining chuck to flip.

[0083] For facilitating subsequent spraying glue on the lining, the lining needs to be vertically straightened. Therefore, it is necessary for the lining chuck to rotate to a state almost vertical. In this state, the lining chuck is almost parallel to the flipping lifting plate 618, thus forming a dead angle, resulting in the failure of the flipping cylinder 621 to drive the rotation of the lining chuck. The elastic device 634 can provide elastic force to lift the lining chuck away from the flipping lifting plate 618, forming a small included angle, leaving the dead point, and further enabling the flipping cylinder 621 to take effect and flip the lining chuck to the initial position.

[0084] In not less than one embodiment, the elastic device 634 can be a nitrogen spring or other existing elastic devices such as spring plungers, providing an initial force for the rotation of the lining chuck.

[0085] Embodiment 4

[0086] On the basis of any one of the above embodiments, such as Figures 1 to 9As shown, it further includes a flip detection device, which includes: a first flip sensor 651 fixed on the flip frame 631; a second flip sensor 652 fixed on the flip frame 631 and located below the first flip sensor 651; a flip detection plate 66, on which a first detection rod 661 and a second detection rod 662 are provided. When the lining chuck is not flipped, the first flip sensor 651 and the second detection rod 662 are arranged opposite to each other. After the lining chuck is flipped, the second flip sensor 652 and the first detection rod 661 are arranged opposite to each other.

[0087] The first flip sensor 651 and the second flip sensor 652 are used to determine the position of the lining chuck to prevent misoperation.

[0088] The first detection rod 661 is arranged horizontally, and the second detection rod 662 is arranged vertically. For the convenience of installation, both the first detection rod 661 and the second detection rod 662 are arranged on the flip detection plate 66.

[0089] In at least one embodiment, both the first flip sensor 651 and the second flip sensor 652 are installed on the flip fixing plate 653. The flip fixing plate 653 is provided with sensor fixing grooves, which is convenient for fixing the positions of the sensors and facilitating installation.

[0090] When the lining chuck is initially clamping the lining, the first flip sensor 651 is facing the second detection rod 662. When the lining chuck completes the flip, the second flip sensor 652 is facing the first detection rod 661.

[0091] In at least one embodiment, it further includes a third flip sensor, a fourth flip sensor and a fifth flip sensor. The third flip sensor is used to detect when the lining chuck is in the lowest position, the fourth flip sensor is used to detect when the lining chuck rises to the flip position, so as to control the upper flip fixing device to lock the flip lifting plate 618, and the fifth flip sensor is used to detect when the lining chuck rises to the highest position. That is, the third flip sensor, the fourth flip sensor and the fifth flip sensor are respectively used to detect the three working positions of the flip cylinder 621.

[0092] In the absence of the fourth turnover sensor, when the turnover cylinder 621 is in the retracted state, the upper positioning cylinder 624 is in the extended state, pressing the upper positioning rod 620 against the turnover lifting plate 618. When the turnover lifting plate 618 rises to a position where the upper turnover positioning hole 6181 is opposite to the upper positioning rod 620, the upper positioning rod 620 is inserted into the upper turnover positioning hole 6181. There is sliding friction between the upper positioning rod 620 and the turnover lifting plate 618. Rollers can be added to convert the sliding friction into rolling friction, but there is pressure on the turnover lifting plate 618, which can easily affect the operation of the turnover lifting plate 618. By using the fourth turnover sensor, the upper positioning cylinder 624 can be activated when it is detected that the turnover lifting plate 618 has risen to the turnover position, without the upper positioning cylinder 624 being in the extended state when the turnover cylinder 621 is retracted, making the operation of the turnover lifting plate 618 smooth.

[0093] The first turnover sensor 651, the second turnover sensor 652, the third turnover sensor, the fourth turnover sensor, and the fifth turnover sensor can all adopt proximity switches.

[0094] Embodiment 5

[0095] The lining turnover method includes the following steps:

[0096] S1. Clamp the lining. The lining chuck clamps the edge of the lining, and the lower turnover fixing device is activated to lock the lining chuck, while the upper turnover fixing device releases the turnover lifting plate 618.

[0097] S2. Rise to the turnover position. The turnover cylinder 621 retracts, raising the lining chuck to a position not lower than the shoe mouth.

[0098] S3. Turn over the lining. The upper turnover fixing device locks the turnover lifting plate 618, the lower turnover fixing device releases the lining chuck, and the turnover cylinder 621 continues to retract. The turnover cylinder 621 drives the lining chuck to turn around the first rotation axis 55, turning the edge of the lining to an upward vertical state.

[0099] S4. Straighten the lining. The upper turnover fixing device releases the turnover lifting plate 618, the lower turnover fixing device locks the lining chuck, and the turnover cylinder 621 continues to retract to the highest point to straighten the lining.

[0100] S5. Insert the lining. The turnover cylinder 621 extends to the lowest point and inserts the lining into the interior of the shoe upper.

[0101] The technical principles of the present invention have been described above in connection with specific embodiments. These descriptions are only for explaining the principles of the present invention and should not be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, those skilled in the art can readily conceive of other specific embodiments of the present invention without creative efforts, and these embodiments will fall within the scope of protection of the claims of the present invention.

Claims

1. Lining turning device, characterized in that, Comprising: A lining chuck for clamping the lining; A flipping and lifting plate, the bottom of the flipping and lifting plate being rotatably connected to the lining chuck; A flipping frame, one end of the flipping frame being rotatably connected to the tail of the lining chuck; A lower flipping fixing device fixed on the flipping frame for controlling whether the lining chuck flips; A flipping bottom plate, the flipping and lifting plate being slidably mounted on the flipping bottom plate; An upper flipping fixing device mounted on the flipping bottom plate for fixing the position of the flipping and lifting plate when the lining chuck flips to limit the flipping position; and A flipping cylinder, one end of the flipping cylinder being rotatably mounted on the flipping bottom plate and the other end being rotatably mounted on the flipping frame.

2. The lining flipping device according to claim 1, wherein The lining chuck comprises: A fixed chuck provided with a pneumatic cavity, an air inlet hole and a spring hole, the pneumatic cavity communicating with the air inlet hole; A chuck piston slidably inserted in the pneumatic cavity; A first rotating shaft rotatably mounted on the fixed chuck; A second rotating shaft rotatably mounted on the tail of the fixed chuck; A movable chuck rotatably mounted on the first rotating shaft and disposed opposite to the fixed chuck, the chuck piston being used to drive the movable chuck to press against the fixed chuck; and An opening spring movably inserted in the spring hole and located between the movable chuck and the fixed chuck, the opening spring being used to drive the movable chuck to open.

3. The lining flipping device according to claim 2, wherein Both sides of the fixed chuck are provided with a first chuck positioning block and a second chuck positioning block, and the first chuck positioning block and the second chuck positioning block are respectively located on both sides of the first rotating shaft.

4. The lining flipping device according to claim 2, wherein The lower flipping fixing device comprises: A lower positioning cylinder fixed on the flipping frame; and A lower positioning block fixed on the piston rod of the lower positioning cylinder and movably inserted in a lower positioning chute of the flipping frame, the lower positioning block being used to press against the fixed chuck through the lower positioning cylinder to limit the rotation of the lining chuck.

5. The lining flipping device according to claim 4, wherein The lower positioning block is provided with a first positioning surface and a second positioning surface, the first positioning surface being used to limit the flipping of the lining chuck before flipping of the lining chuck, and the second positioning surface being used to limit the flipping of the lining chuck after flipping of the lining.

6. The lining flipping device according to claim 1, wherein The upper flipping fixing device comprises: An upper positioning cylinder fixed on the flipping bottom plate; and The upper positioning rod is fixed on the upper positioning cylinder and is movably inserted into the flipping bottom plate. The flipping lifting plate is provided with an upper flipping positioning hole matching the upper positioning rod, and the upper positioning rod is used to be inserted into or pulled out of the upper flipping positioning hole through the upper positioning cylinder.

7. The lining flipping device according to claim 6, characterized in that further comprising: an upper sliding frame fixed on the flipping bottom plate, and the upper positioning cylinder is fixed on the upper sliding frame; and an upper linkage frame, one end of the upper linkage frame is connected to the piston rod of the upper positioning cylinder, and the other end is equipped with the upper positioning rod.

8. The lining flipping device according to claim 6, characterized in that further comprising an elastic device fixed on the flipping frame and corresponding to the flipping lifting plate, and used to jack up the flipping frame when resetting after flipping.

9. The lining flipping device according to claim 1, characterized in that further comprising a flipping detection device, and the flipping detection device includes: a first flipping sensor fixed on the flipping frame; a second flipping sensor fixed on the flipping frame and located below the first flipping sensor; a flipping detection plate fixed on the flipping lifting plate, and the flipping detection plate is provided with a first detection rod and a second detection rod. When the lining chuck is not flipped, the first flipping sensor is arranged opposite to the second detection rod, and when the lining chuck is flipped, the second flipping sensor is arranged opposite to the first detection rod.

10. A method for turning the lining, based on the lining turning device according to any one of claims 1-9, characterized in that, including the following steps: S1. Clamp the lining, the lining chuck clamps the edge of the lining, the lower flipping fixing device starts to lock the lining chuck, and the upper flipping fixing device releases the flipping lifting plate; S2. Rise to the flipping position, the flipping cylinder retracts, and the lining chuck is raised to a position not lower than the shoe mouth; S3. Flip the lining, the upper flipping fixing device locks the flipping lifting plate, the lower flipping fixing device releases the lining chuck, the flipping cylinder continues to retract, and the flipping cylinder drives the lining chuck to flip around the first rotation axis, and flips the edge of the lining to an upward vertical state; S4. Straighten the lining, the upper flipping fixing device releases the flipping lifting plate, the lower flipping fixing device locks the lining chuck, the flipping cylinder continues to retract to the highest point, and the lining is straightened; S5. Insert the lining, the flipping cylinder extends to the lowest point, and the lining is inserted into the interior of the shoe upper.

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