Automatic tensioning device for upper grabbing line of upper

Abstract

The invention belongs to the technical field of shoe processing, and particularly relates to an upper grabbing line automatic tensioning device which comprises a base, a fastening box and a rectangular box are fixedly mounted at the top of the base, the fastening box is arranged on one side of the rectangular box, a tensioning assembly is arranged in the fastening box and used for driving an upper pulling line to connect an upper and a welt, and the upper grabbing line is arranged on the upper grabbing line. A coating assembly is arranged in the rectangular box; by pushing the shoe upper and the welt to move, the inner sides of the shoe upper and the welt can be attached to the outer wall of the gluing groove box to move, two blocking blocks can be pushed to extrude a reset spring to move, a liquid outlet can be opened, glue in the gluing groove box can flow out of the liquid outlet to the inner side of the shoe upper and the inner side of the welt, and the function of automatically coating glue is achieved; when the two blocking blocks are not in contact with the gluing groove box, the blocking blocks lose thrust, the two blocking blocks are pushed by the reset springs to move into the liquid outlet again, the liquid outlet is blocked, and the situation that glue in the gluing groove box flows out when not in operation, and waste of resources is caused is prevented.

Description

Technical Field

[0001] The present invention belongs to the technical field of shoe processing, and specifically relates to an automatic tightening device for the shoe upper binding line. Background Art

[0002] The shoe upper is an important part of the shoe, referring to all parts of the shoe that cover the foot. Its main functions are to protect the foot, fix the shoe shape, and endow the shoe with aesthetics and functionality.

[0003] The shoe upper binding line is a key process link in the shoe manufacturing process, mainly used to fix and tighten the edge of the shoe upper through sewing or mechanical devices when the shoe upper is combined with the sole.

[0004] A patent application with the publication number CN108378473A discloses a shoe upper tightening device for shoe processing machinery. The slider drives the support rod to move, the support rod drives the second clamping plate to move, and the second clamping plate drives the clamping block to move. They cooperate with each other to facilitate the clamping and fixing of the binding line, increase the stability of the binding line during tightening, and facilitate the adjustment of the tightening angle, enabling the binding line to be tightened at an appropriate angle. The structure is simple and easy to use.

[0005] When using a tightening device to connect the shoe upper binding edge and the welt, since the shoe upper binding edge and the welt are in a layered relationship, it is usually necessary for the operator to apply glue to both of them first, so that they are fixed by glue before connection, and then the tightening device drives the binding line to connect them by pulling. This coating method relies heavily on manual labor when coating both of them. In mass production, it not only consumes manpower but also causes a certain amount of time waste.

[0006] Therefore, the present invention provides an automatic tightening device for the shoe upper binding line. Summary of the Invention

[0007] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art.

[0008] The technical solution adopted by the present invention to solve its technical problems is as follows: An automatic tightening device for the shoe upper binding line of the present invention includes a base. A fastening box and a rectangular box are fixedly installed on the top of the base. The fastening box is placed on one side of the rectangular box. A tightening component is arranged inside the fastening box, and the tightening component is used to drive the binding line to connect the shoe upper and the welt. A coating component is arranged inside the rectangular box. The coating component includes a glue coating groove box with glue inside, and the coating component is used to drive the glue to coat the shoe upper and the welt. A calibration component is arranged inside the fastening box, and the calibration component is used to calibrate the position of the shoe upper and the welt when the tightening component uses the binding line to connect the shoe upper and the welt. By aligning the topline edge of the shoe upper with the welt edge, when the two are aligned and overlapped, by inserting them into the rectangular box from one side of the base, the coating assembly in the rectangular box will drive the glue through the glue trough box to coat between the shoe upper and the welt. Before the tensioning operation between the two, the edge pasting and overlapping operation is carried out first to prevent the phenomenon that one of them runs out of position due to the strain tension during the tensioning operation, and the two cannot be overlapped, which affects the tensioning operation. When the coating assembly finishes coating between the two, by continuing to push the two to move, the shoe upper and the welt will move into the fastening box. When the two move into the fastening box, the tensioning assembly in the fastening box drives the drawstring to connect between the shoe upper and the welt, so as to realize the automatic tensioning operation between the two. While the tensioning assembly is operating, the alignment assembly aligns the movement between the shoe upper and the welt. First, it can prevent the two from running off or falling off during the movement. Second, it can cooperate with the tensioning assembly to carry out the tensioning operation between the two, preventing the two from not being well aligned with the tensioning assembly due to no limit during the tensioning operation, which affects the automatic tensioning operation of the tensioning assembly between the shoe upper and the welt.

[0009] Preferably, the tensioning assembly includes a thread fishing device and a threading device. The thread fishing device is arranged on one side of the threading device, and the two are respectively placed on one side of the shoe upper and the welt. When the shoe upper and the welt move between the thread fishing device and the threading device, by driving the two to operate, the threading device drives the drawstring to penetrate between the two. At the same time, the thread fishing device cooperates with the threading device to operate and fish the drawstring passing through the threading device. By the two cooperating with each other, one threading and the other fishing, the automatic tensioning operation between the shoe upper and the welt is realized, playing the role of automatically tensioning the drawstring.

[0010] Preferably, a wire fixing disc is fixedly installed on the top of the fastening box. The wire fixing disc is used to place the coil. One end of the drawstring is placed inside the threading device. When tensioning the shoe upper and the welt, by placing the coil wound with the drawstring on the wire fixing disc, and then connecting one end of the drawstring to the threading device, the placement operation of the drawstring is realized. When the drawstring is used up, by taking out the coil on the wire fixing disc and replacing it with a new coil. The setting of the wire fixing disc provides a placement basis for the placement of the coil, playing the role of placing the coil.

[0011] Preferably, the calibration component includes a support plate. Connecting frames are symmetrically and fixedly installed at the top of the support plate. One ends of the two connecting frames are fixedly connected to the outer wall of the fastening box. One side of the support plate is fixedly connected to the outer wall of the base. Limited-slip rods are symmetrically and fixedly installed at the top of the support plate. Shifting blocks are slidably connected to the outer walls of the two limited-slip rods. Connecting rods are fixedly installed on one sides of the two shifting blocks. One ends of the two connecting rods are fixedly installed with clamping plates. The bottoms of the two clamping plates are slidably connected to the top of the support plate. Return springs are arranged between the two shifting blocks and the inner wall of the rectangular box. The two return springs are respectively disposed outside the two limited-slip rods. When the shoe upper and the welt are bonded by the coating component, by pushing the two into the fastening box. When the two move, the return springs push the shifting blocks to move on the limited-slip rods. The shifting blocks will drive the clamping plates to move on the top of the fastening box through the connecting rods. The two clamping plates will move from both sides of the shoe upper and the welt to the two under the push of the return springs. When the two clamping plates are attached to both sides of the shoe upper and the welt, at this time, the two clamping plates complete the limiting between the shoe upper and the welt, providing a limiting basis for both sides when the shoe upper and the welt move, preventing warping or displacement when the two move, and playing a role in limiting the sliding of the shoe upper and the welt on both sides.

[0012] Preferably, sliding openings are formed in the inner wall of the support plate. The two clamping plates are respectively disposed on one side of the sliding openings. The inner walls of one ends of the two clamping plates are both inclined sliding surfaces. Rectangular openings are formed at the other ends of the two clamping plates. The other ends of the two clamping plates are slidably connected to each other. A frame plate is fixedly installed on the inner wall of the rectangular box. A limiting plate is fixedly installed on one side of the frame plate. When moving the shoe upper and the welt, by attaching the tops of the two to the bottom of the frame plate, and then pushing the two to move along the rectangular openings. When the two move, the limiting plate limits the tops of the two, cooperating with the two clamping plates to limit both sides of the shoe upper and the welt, so as to realize the movement limit of the shoe upper and the welt, preventing the two from running out of position or being displaced during movement, affecting the stringing and tightening operation of the tightening component between the two. The return springs push the shifting blocks to drive the clamping plates to limit the shoe upper and the welt through elastic force, and the limiting plate limits the top between the two, enabling the device to perform limiting movement operations on shoe uppers and welts of various different specifications during operation, improving the applicability of the device, and being more conducive to the batch production operation between the shoe upper and the welt.

[0013] Preferably, rotating shafts are symmetrically and movably connected to the top of the support plate. Groove blocks are symmetrically and fixedly installed on the inner walls of the two shifting blocks. Chute grooves are symmetrically formed on the inner walls of the two rotating shafts. The outer walls of the four groove blocks can be respectively slidably connected to the inner walls of the four chute grooves. Diagonal sliding plates are symmetrically and rotatably connected to the top of the support plate. One ends of the two diagonal sliding plates are respectively hinged to the outer walls of the two rotating shafts. When the shoe upper and the welt are pushed by the coating assembly to move into the rectangular opening, by pushing the two to move, when they move, the outer walls of the shoe upper and the welt will move along the converging direction of the diagonal sliding plates. The shoe upper and the welt will push the rotating shafts to move. The rotating shafts will push the shifting blocks to extrude the return spring to move. The return spring will drive the two clamping plates to move relatively through the connecting rod, so that the two clamping plates open and close to a position with the same thickness as that between the shoe upper and the welt, thus realizing the effect of automatically adjusting the positions of the two clamping plates according to the thickness between the shoe upper and the welt. Since the shifting blocks and the rotating shafts are connected by the groove blocks, when the shoe upper and the welt move between the two rotating shafts, the two rotating shafts will rotate under the moving inertia force between the shoe upper and the welt. The groove blocks will slide in the chute grooves. When the shoe upper and the welt move in the rectangular opening, the two rotating shafts are in contact with one side of the two and rotate relatively. On the one hand, it is more convenient for the two to move. On the other hand, the glue applied by the coating assembly between the two can be extruded, so that the two can be better bonded by the glue.

[0014] Preferably, the coating assembly further includes plug blocks. The number of the plug blocks is two. Limit sliding plates are symmetrically and fixedly installed on the inner wall of the glue coating groove box. A vertical plate is installed between the two limit sliding plates. The outer walls of the two plug blocks can be respectively slidably connected to the inner sides of the two limit sliding plates. A plurality of return springs are arranged between the outer walls of the two plug blocks and the two sides of the vertical plate. Liquid outlet openings are symmetrically formed on the inner wall of the glue coating groove box. The outer walls of the two plug blocks can be respectively slidably attached to the inner walls of the two liquid outlet openings. The glue coating groove box is fixedly installed at the bottom of the frame plate. The glue coating groove box is placed at the middle position at one end of the sliding opening. When the tops of the shoe upper and the welt are attached to the bottom of the frame plate and move into the rectangular opening, by placing the shoe upper and the welt on one side of the glue coating groove box respectively, and then pushing the two to move. When moving, the inner sides of the two will be attached to the outer wall of the glue coating groove box and move. The two plug blocks will be pushed to extrude the return springs between the limit sliding plates and move towards the vertical plate in the liquid outlet openings. The liquid outlet openings will be opened. The glue in the glue coating groove box will flow out from the liquid outlet openings to the inner sides of the shoe upper and the welt. When the two move, the rotating shafts push and extrude between the two, thus realizing the bonding operation between the two, playing the role of automatically coating glue between the shoe upper and the welt. When the two are out of contact with the glue coating groove box, the plug blocks will lose the thrust. The two plug blocks will be reset under the push of the return springs and re-block the liquid outlet openings, preventing the glue in the glue coating groove box from flowing out during non-operation and causing waste of resources.

[0015] Preferably, push blocks are fixedly installed on the other sides of the two shifting blocks. The shapes of one sides of the two push blocks are complementary to the outer shape of the glue application groove box. When the inner sides of the shoe upper and the welt are attached to the outer wall of the mounting plate and slide into the rectangular opening, the shoe upper and the welt will move towards the rectangular opening through the space between the two push blocks. The two push blocks will then limit and push the outer walls of the two, so that the inner sides of the shoe upper and the welt can better fit the outer wall of the glue application groove box. The two will be limited and extruded by the push blocks to open the blocking block, and the glue placed in the glue application groove box can better flow between the two, playing a role in limiting and pushing the shoe upper and the welt to fit the outer wall of the glue application groove box, preventing the phenomenon that the shoe upper and the welt cannot fit well with the glue application groove box, the glue cannot be well coated between the shoe upper and the welt, and the two are dislocated due to poor bonding effect. By changing the position of the push block following the rotation of the rotating shaft, the push block can limit various shoe uppers and welts with different specifications.

[0016] Preferably, a flow dividing block is fixedly installed on one side of the glue application groove box. The top of the flow dividing block is fixedly connected to the bottom of the mounting plate. The size of one side of the flow dividing block is the same as the size of one side of the glue application groove box. Both sides at one end of the flow dividing block are provided with inclined sliding surfaces. When the shoe upper and the welt are placed at the bottom of the mounting plate, by overlapping the two and placing them on one side of the flow dividing block respectively, and then pushing the two to move, the two will slide along the outer wall of the flow dividing block and finally slide onto the outer wall of the glue application groove box. The setting of the flow dividing block can guide the movement between the two, enabling the two to better enter between the glue application groove box and the rectangular opening during movement, playing a role in guiding the movement.

[0017] Preferably, a liquid supplement box is fixedly installed on the top of the mounting plate. A liquid flow pipe is fixedly installed on the outer wall of the liquid supplement box. One end of the liquid flow pipe penetrates the inner wall of the mounting plate and is fixedly connected to the top of the glue application groove box. When the glue in the glue application groove box flows out through the liquid outlet to coat between the shoe upper and the welt, the liquid supplement box continuously supplements the glue in the glue application groove box through the liquid flow pipe, preventing the glue in the glue application groove box from becoming less, affecting the coating operation between the shoe upper and the welt, and making the bonding effect between the shoe upper and the welt worse, playing a role in supplementing the glue in the glue application groove box.

[0018] The beneficial effects of the present invention are as follows: 1. An automatic tightening device for the shoe upper and welt line of the present invention moves the shoe upper and welt. The inner sides of both will fit against the outer wall of the glue - coating trough box and move. The two blocking blocks will be pushed to squeeze the return spring and move, and the liquid outlet will be opened. The glue liquid placed in the glue - coating trough box will flow out from the liquid outlet to the inner sides of the shoe upper and welt, playing the role of automatic glue coating. When the contact between them and the glue - coating trough box is lost, the blocking blocks lose the thrust. The two blocking blocks are pushed by the return spring and move back into the liquid outlet to block the liquid outlet, preventing the glue in the glue - coating trough box from flowing out during non - operation and causing waste of resources.

[0019] 2. An automatic tightening device for the shoe upper and welt line of the present invention limits and pushes the outer walls of the shoe upper and welt through two push blocks, so that the inner sides of the shoe upper and welt can better fit against the outer wall of the glue - coating trough box. The two will be limited and squeezed by the push blocks to open the blocking blocks, and the glue placed in the glue - coating trough box can better flow between them, preventing the phenomenon that due to the poor fit between the shoe upper and welt and the glue - coating trough box, the glue cannot be well coated between the shoe upper and welt, and the dislocation occurs due to the poor bonding effect between them.

[0020] 3. An automatic tightening device for the shoe upper and welt line of the present invention moves the shoe upper and welt. The outer walls of the shoe upper and welt will move along the converging direction of the inclined slide plate. The shoe upper and welt will push the rotating shaft to move. The rotating shaft will push the displacement block to squeeze the return spring and move. The return spring will drive the two clamping plates to move relatively through the connecting rod, so that the two clamping plates open and close to a position with the same thickness as that between the shoe upper and welt, thus achieving the effect of automatically adjusting the positions of the two clamping plates according to the thickness between the shoe upper and welt.

[0021] 4. An automatic tightening device for the shoe upper and welt line of the present invention, when the shoe upper and welt move between the two rotating shafts, the two rotating shafts will rotate under the moving inertia force between the shoe upper and welt. The groove block will slide in the chute. When the shoe upper and welt move in the rectangular opening, the two rotating shafts fit against one side of them and rotate relatively. On the one hand, it can make it more convenient for their movement. On the other hand, it can squeeze the glue liquid coated by the coating component between them, so that they can be better bonded by the glue.

[0022] 5. An automatic tightening device for the shoe upper and welt stitching line of the present invention limits the tops of both when the shoe upper and the welt move. In cooperation with two clamping plates that limit the two sides of the shoe upper and the welt, it realizes the movement limit of the shoe upper and the welt, preventing the phenomenon of displacement or dislocation during their movement, which affects the stringing and tightening operation between the two by the tightening component. The return spring pushes the displacement block through elastic force to drive the clamping plate to limit the shoe upper and the welt, and the limiting plate limits the top between the two. When the device operates, it can limit and move shoe uppers and welts of various different specifications, improving the applicability of the device and being more conducive to the batch production operation between the shoe upper and the welt. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below with reference to the accompanying drawings.

[0024] Figure 1 is the overall view of the present invention; Figure 2 is the main view of the present invention; Figure 3 is the schematic structural view of the clamping plate in the present invention; Figure 4 is the schematic structural view of the displacement block in the present invention; Figure 5 is the schematic structural view of the rotating shaft in the present invention; Figure 6 is the schematic structural view of the connecting rod in the present invention; Figure 7 is the schematic structural view of the inclined slide plate in the present invention; Figure 8 is the schematic structural view of the groove block in the present invention; Figure 9 is the schematic structural view of the flow dividing block in the present invention; Figure 10 is the schematic structural view of the liquid flow pipe in the present invention; Figure 11 is the schematic structural view of the plug block in the present invention.

[0025] In the figure: 1, base; 2, fastening box; 201, wire fishing device; 202, wire threading device; 3, rectangular box; 301, shifting block; 3011, groove block; 302, return block spring; 303, anti-slip rod; 304, rotating shaft; 3041, sliding groove; 305, connecting rod; 306, inclined sliding plate; 307, pushing block; 4, support plate; 401, connecting frame; 402, sliding opening; 5, liquid replenishing box; 501, shunt block; 502, liquid flow pipe; 6, clamping plate; 601, rectangular opening; 7, limiting plate; 8, glue coating groove box; 801, liquid outlet; 802, blocking block; 803, anti-slip plate; 804, return spring; 805, vertical plate; 9, wire fixing disc; 10, frame plate. Detailed implementation manners

[0026] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0027] As Figures 1 to 11 shown, an automatic tightening device for shoe upper grabbing and tightening the binding thread according to an embodiment of the present invention includes a base 1. A fastening box 2 and a rectangular box 3 are fixedly installed on the top of the base 1. The fastening box 2 is placed on one side of the rectangular box 3. A tightening assembly is arranged inside the fastening box 2. The tightening assembly is used to drive the binding thread to connect the shoe upper and the welt. A coating assembly is arranged inside the rectangular box 3. The coating assembly includes a glue coating groove box 8. Glue is arranged inside the glue coating groove box 8. The coating assembly is used to drive the glue to coat the shoe upper and the welt. A calibration assembly is arranged inside the fastening box 2. The calibration assembly is used to calibrate the shoe upper and the welt when the tightening assembly uses the binding thread to connect the shoe upper and the welt. Since the shoe upper binding edge and the welt are in a layered relationship, usually, it is necessary for the operator to first coat the glue between the two, and then drive the binding thread through the tightening device to connect the two. In mass production, this method not only consumes manpower but also causes certain time waste. By aligning the edge of the shoe upper's topline with the welt edge, when the two are aligned and overlapped, they are inserted into the rectangular box 3 from one side of the base 1. The coating assembly inside the rectangular box 3 will drive the glue through the glue trough box 8 to coat between the shoe upper and the welt. Before the tensioning operation between the two, a hemming and overlapping operation is carried out first to prevent the phenomenon that one of them runs out of position due to the strain tension during the tensioning operation, and the two cannot be overlapped, which affects the tensioning operation. When the coating assembly finishes coating between the two, by continuing to push the two to move, the shoe upper and the welt will move into the fastening box 2. When the two move into the fastening box 2, the tensioning assembly inside the fastening box 2 drives the drawstring to connect between the shoe upper and the welt, thus realizing the automatic tensioning operation between the two. While the tensioning assembly is operating, the alignment assembly aligns the movement between the shoe upper and the welt. First, it can prevent the two from running off or falling off during movement. Second, it can cooperate with the tensioning assembly to tension between the two, preventing the situation that due to no limit during the tensioning operation between the two, the alignment between the two and the tensioning assembly cannot be well achieved, affecting the automatic tensioning operation of the tensioning assembly between the shoe upper and the welt.

[0028] As Figures 1 to 3 shown, the tensioning assembly includes a thread fishing device 201 and a thread threading device 202. The thread fishing device 201 is arranged on one side of the thread threading device 202, and the two are respectively placed on one side of the shoe upper and the welt. When the shoe upper and the welt move between the thread fishing device 201 and the thread threading device 202, by driving the two to operate, the thread threading device 202 drives the drawstring to penetrate between the two. At the same time, the thread fishing device 201 cooperates with the thread threading device 202 to operate and fish the drawstring that comes out of the thread threading device 202. Through the cooperation of one threading and one fishing between the two, the automatic tensioning operation between the shoe upper and the welt is realized, playing the role of automatically tensioning the drawstring. Here, it should be noted that both the thread fishing device 201 and the thread threading device 202 are existing technologies, so only explanations are given in this solution and no demonstrations are shown.

[0029] As Figures 1 to 3 shown, a wire fixing disc 9 is fixedly installed on the top of the fastening box 2. The wire fixing disc 9 is used to place the coil, and one end of the drawstring is placed inside the thread threading device 202. When tensioning between the shoe upper and the welt, by placing the coil wound with the drawstring on the wire fixing disc 9, and then connecting one end of the drawstring to the thread threading device 202, the placement operation of the drawstring is realized. When the drawstring is used up, by taking out the coil on the wire fixing disc 9 and replacing it with a new one. The setting of the wire fixing disc 9 provides a placement basis for the coil and plays the role of placing the coil.

[0030] As Figures 4 to 6As shown in the figure, the calibration component includes a support plate 4. Symmetrically fixed on the top of the support plate 4 are connecting frames 401. One end of each of the two connecting frames 401 is fixedly connected to the outer wall of the fastening box 2. One side of the support plate 4 is fixedly connected to the outer wall of the base 1. Symmetrically fixed on the top of the support plate 4 are limited-sliding rods 303. Slidingly connected to the outer walls of the two limited-sliding rods 303 are displacement blocks 301. Fixedly installed on one side of each of the two displacement blocks 301 is a connecting rod 305. One end of each of the two connecting rods 305 is fixedly installed with a clamping plate 6. The bottoms of the two clamping plates 6 are slidingly connected to the top of the support plate 4. Between the two displacement blocks 301 and the inner wall of the rectangular box 3 are provided return spring blocks 302. The two return spring blocks 302 are respectively placed outside the two limited-sliding rods 303; When the shoe upper and the welt are bonded by the coating component, by pushing the two into the fastening box 2, when the two move, the return spring block 302 pushes the displacement block 301 to move on the limited-sliding rod 303. The displacement block 301 will drive the clamping plate 6 to move on the top of the fastening box 2 through the connecting rod 305. The two clamping plates 6 will move from both sides of the shoe upper and the welt to the two under the push of the return spring block 302. When the two clamping plates 6 are attached to both sides of the shoe upper and the welt, at this time, the two clamping plates 6 complete the limiting of the shoe upper and the welt, providing a limiting basis for the two sides of the shoe upper and the welt when they move, preventing the phenomenon of warping or displacement when the two move, and playing a role in limiting the sliding of the shoe upper and the welt on both sides.

[0031] As Figures 4 to 6 As shown in the figure, a sliding opening 402 is opened on the inner wall of the support plate 4. The two clamping plates 6 are respectively placed on one side of the sliding opening 402. The inner walls of one ends of the two clamping plates 6 are both inclined sliding surfaces. A rectangular opening 601 is opened at the other end of each of the two clamping plates 6. The other ends of the two clamping plates 6 are slidingly connected to each other. Fixedly installed on the inner wall of the rectangular box 3 is a frame plate 10. Fixedly installed on one side of the frame plate 10 is a limiting plate 7; When moving the shoe upper and the welt, by attaching the tops of the two to the bottom of the frame plate 10, and then pushing the two to move along the rectangular opening 601. When the two move, the limiting plate 7 limits the tops of the two, cooperating with the two clamping plates 6 to limit the two sides of the shoe upper and the welt, so as to realize the movement limit of the shoe upper and the welt, preventing the phenomenon of displacement or dislocation when the two move, which affects the stringing and tightening operation of the tightening component between the two. The return spring block 302 pushes the displacement block 301 through the elastic force to drive the clamping plate 6 to limit the shoe upper and the welt, and the limiting plate 7 limits the top between the two, enabling the device to perform the limiting movement operation on shoe uppers and welts of various different specifications during operation, improving the applicability of the device, and being more conducive to the batch production operation between the shoe upper and the welt.

[0032] As Figures 5 to 8As shown in the figure, the top of the support plate 4 is symmetrically and movably connected with a rotating shaft 304. The inner walls of the two shifting blocks 301 are symmetrically and fixedly installed with groove blocks 3011. The inner walls of the two rotating shafts 304 are symmetrically provided with sliding grooves 3041. The outer walls of the four groove blocks 3011 can be respectively slidably connected with the inner walls of the four sliding grooves 3041. The top of the support plate 4 is symmetrically rotatably connected with inclined sliding plates 306. One ends of the two inclined sliding plates 306 are respectively hinged to the outer walls of the two rotating shafts 304; When the shoe upper and the welt are pushed by the coating assembly to move into the rectangular opening 601, by pushing the two to move, when they move, the outer walls of the shoe upper and the welt will move along the converging direction of the inclined sliding plate 306. The shoe upper and the welt will push the rotating shaft 304 to move. The rotating shaft 304 will push the shifting block 301 to squeeze the return spring 302 to move. The return spring 302 will drive the two clamping plates 6 to move relatively through the connecting rod 305, so that the two clamping plates 6 are opened and closed to a position with the same thickness as that between the shoe upper and the welt, thus realizing the effect of automatically adjusting the positions of the two clamping plates 6 according to the thickness between the shoe upper and the welt. Since the shifting block 301 and the rotating shaft 304 are connected by the groove block 3011, when the shoe upper and the welt move between the two rotating shafts 304, the two rotating shafts 304 will rotate under the moving inertia force between the shoe upper and the welt. The groove block 3011 will slide in the sliding groove 3041. When the shoe upper and the welt move in the rectangular opening 601, the two rotating shafts 304 rotate relatively on one side in contact with the two, on the one hand, it is more convenient for the movement between the two, and on the other hand, it can squeeze the glue applied by the coating assembly between the two, so that the two can be better bonded by glue. It should be noted here that the outer circular edge positions of the two rotating shafts 304 in contact with the shoe upper and the welt are at the same horizontal position as the inner side positions of the two clamping plates 6.

[0033] As Figures 9 to 11 As shown in the figure, the coating assembly further includes two blocking blocks 802. The inner wall of the glue coating groove box 8 is symmetrically and fixedly installed with limiting sliding plates 803. A vertical plate 805 is installed between the two limiting sliding plates 803. The outer walls of the two blocking blocks 802 can be respectively slidably connected with the inner sides of the two limiting sliding plates 803. A plurality of return springs 804 are arranged between the outer walls of the two blocking blocks 802 and the two sides of the vertical plate 805. The inner wall of the glue coating groove box 8 is symmetrically provided with liquid outlets 801. The outer walls of the two blocking blocks 802 can be respectively slidably attached to the inner walls of the two liquid outlets 801. The glue coating groove box 8 is fixedly installed at the bottom of the frame plate 10. The glue coating groove box 8 is placed at the middle position of one end of the sliding opening 402; When the top of the shoe upper and the welt are fitted to the bottom of the frame 10 and move toward the rectangular opening 601, the shoe upper and the welt are placed on one side of the glue coating groove box 8 respectively, and then the two are pushed to move. When moving, the inner sides of the two will fit the outer wall of the glue coating groove box 8 and move. The two blocking blocks 802 will be pushed between the limiting slide plates 803 to squeeze the return spring 804 and move toward the vertical plate 805 in the liquid outlet 801. The liquid outlet 801 will open, and the glue placed in the glue coating groove box 8 will flow out from the liquid outlet 801 to the inner side of the shoe upper and the welt. When the two move, The rotating shaft 304 pushes and squeezes the two, thereby realizing the bonding operation between the two, and plays the role of automatically applying glue between the upper and the welt. When the two lose contact with the glue trough box 8, the block 802 will lose its thrust, and the two blocks 802 will be reset and re-stuck in the liquid outlet 801 under the push of the reset spring 804, blocking the liquid outlet 801 to prevent the glue in the glue trough box 8 from flowing out when not in operation, causing waste of resources. It should be noted here that the block 802 and the glue trough box 8 are both made of non-adhesive materials.

[0034] like Figures 7 to 9 As shown, a push block 307 is fixedly installed on the other side of the two shift blocks 301, and the shape of one side of the two push blocks 307 can complement the shape of the glue coating tank box 8; When the inner side of the shoe upper and the welt stick to the outer wall of the frame 10 and slide into the rectangular opening 601, the shoe upper and the welt will move toward the rectangular opening 601 through the two pushing blocks 307. The two pushing blocks 307 will push the outer walls of the two to limit the position, so that the inner side of the shoe upper and the welt can better fit the outer wall of the glue groove box 8. The two will be limited by the pushing blocks 307 and the block 802 will be opened, and the glue placed in the glue groove box 8 can better flow between the two, playing a role in limiting and pushing the shoe upper and the welt to the outer wall of the glue groove box 8. The outer wall of the glue coating groove box 8 is fitted to prevent the shoe upper and the welt from being well fitted with the glue coating groove box 8, and the glue being unable to be well coated between the shoe upper and the welt, resulting in the phenomenon of dislocation due to poor bonding effect. By changing the position of the push block 307 following the movement of the rotating shaft 304, the push block 307 can limit the position of shoe uppers and welts of various specifications. It should be noted here that the position of one end of the push block 307 is on the same horizontal line as the inner side of the splint 6.

[0035] like Figures 9 to 10 As shown, a diverter block 501 is fixedly installed on one side of the glue trough box 8, and the top of the diverter block 501 is fixedly connected to the bottom of the frame 10. The size of one side of the diverter block 501 is the same as that of one side of the glue trough box 8, and both sides of one end of the diverter block 501 are provided with inclined sliding surfaces; When the shoe upper and the welt are placed at the bottom of the shelf plate 10, by overlapping the two and placing them on one side of the shunt block 501 respectively, and then pushing the two to move, the two will slide along the outer wall of the shunt block 501 and finally slide onto the outer wall of the glue application tank box 8. The setting of the shunt block 501 can guide the movement between the two, enabling the two to better enter between the glue application tank box 8 and the rectangular opening 601 during movement, playing a role in guiding the movement.

[0036] As Figures 7 to 9 shown, a liquid replenishing tank 5 is fixedly installed at the top of the shelf plate 10. A liquid flow pipe 502 is fixedly installed on the outer wall of the liquid replenishing tank 5. One end of the liquid flow pipe 502 penetrates the inner wall of the shelf plate 10 and is fixedly connected to the top of the glue application tank box 8; When the glue in the glue application tank box 8 flows out through the liquid outlet 801 to coat between the shoe upper and the welt, the liquid replenishing tank 5 continuously replenishes the glue in the glue application tank box 8 through the liquid flow pipe 502, preventing the glue in the glue application tank box 8 from becoming less, affecting the coating operation between the shoe upper and the welt, and making the bonding effect between the shoe upper and the welt worse, playing a role in replenishing the glue in the glue application tank box 8.

[0037] Working principle: By aligning and overlapping the foot of the shoe upper and the edge of the welt, when the two are aligned and overlapped, insert the two into the rectangular box 3 from one side of the base 1. The coating assembly in the rectangular box 3 will drive the glue through the glue application tank box 8 to coat between the shoe upper and the welt. Before the two are tightened, a hemming and overlapping operation is carried out first to prevent the phenomenon that when the two are tightened, one of them runs out of position due to the strain tension and the two cannot be overlapped, affecting the tightening operation. When the coating assembly finishes coating between the two, by continuing to push the two to move, the shoe upper and the welt will move into the tightening box 2. When the two move into the tightening box 2, the tightening assembly in the tightening box 2 drives the lacing to connect between the shoe upper and the welt, thus realizing the automatic tightening operation between the two. While the tightening assembly is operating, the alignment assembly aligns the movement between the shoe upper and the welt. First, it can prevent the two from running off or falling off during movement. Second, it can cooperate with the tightening assembly to tighten the two, preventing the two from not being well aligned with the tightening assembly due to no limit when the two are tightened, affecting the automatic tightening operation of the tightening assembly on the shoe upper and the welt; When the shoe upper and the welt move between the wire fishing device 201 and the wire threading device 202, by driving the two to operate, the wire threading device 202 drives the lacing to penetrate between the two. At the same time, the wire fishing device 201 cooperates with the wire threading device 202 to operate and fish the lacing passed out by the wire threading device 202. Through the cooperation of the two, one threading and one fishing, the automatic tightening operation between the shoe upper and the welt is realized, playing a role in automatically tightening the lacing; When performing a tightening operation between the shoe upper and the welt, the coil wound with the lacing thread is placed on the thread fixing disc 9, and then one end of the lacing thread is connected to the threading device 202, so as to realize the placement operation of the lacing thread. When the lacing thread is used up, the coil on the thread fixing disc 9 is taken out and a new coil is replaced. The setting of the thread fixing disc 9 provides a placement basis for the coil and plays a role in placing the coil; When the shoe upper and the welt are bonded by the coating assembly, they are pushed to move into the fastening box 2. When they move, the return spring 302 pushes the displacement block 301 to move on the anti-slip rod 303. The displacement block 301 will drive the clamping plate 6 to move on the top of the fastening box 2 through the connecting rod 305. The two clamping plates 6 will move from both sides of the shoe upper and the welt to the two under the push of the return spring 302. When the two clamping plates 6 are attached to both sides of the shoe upper and the welt, at this time, the two clamping plates 6 complete the limiting of the shoe upper and the welt, providing a limiting basis for both sides when the shoe upper and the welt move, and preventing the phenomenon of warping or displacement when they move, playing a role in limiting the sliding of the shoe upper and the welt on both sides; When the shoe upper and the welt move, their tops are attached to the bottom of the rack plate 10, and then they are pushed to move along the rectangular opening 601. When they move, the limiting plate 7 limits their tops, and cooperates with the two clamping plates 6 to limit both sides of the shoe upper and the welt, so as to realize the movement limit of the shoe upper and the welt, preventing the phenomenon of displacement or dislocation when they move, which affects the threading and tightening operation of the tightening assembly between them. The return spring 302 pushes the displacement block 301 through the elastic force to drive the clamping plate 6 to limit the shoe upper and the welt, and the limiting plate 7 limits the top between them, so that the device can perform the limiting movement operation on shoe uppers and welts of various different specifications during operation, improving the applicability of the device and being more conducive to the batch production operation between the shoe upper and the welt; When the upper and the welt are pushed and move into the rectangular opening 601 under the coating of the coating assembly, by pushing the two to move, when the two move, the outer walls of the upper and the welt will move along the converging direction of the inclined slide plate 306, and the upper and the welt will push the rotating shaft 304 to move. The rotating shaft 304 will push the shifting block 301 to squeeze the return spring 302 to move. The return spring 302 will drive the two clamping plates 6 to move relatively through the connecting rod 305, so that the two clamping plates 6 are opened and closed to a position with the same thickness as that between the upper and the welt, thus realizing the effect of automatically adjusting the positions of the two clamping plates 6 according to the thickness between the upper and the welt. Since the shifting block 301 and the rotating shaft 304 are connected by the groove block 3011, when the upper and the welt move between the two rotating shafts 304, the two rotating shafts 304 will rotate under the moving inertia force between the upper and the welt, and the groove block 3011 will slide in the chute 3041. When the upper and the welt move in the rectangular opening 601, the two rotating shafts 304 fit on one side of the two and rotate relatively. On the one hand, it is more convenient for the movement between the two. On the other hand, it can squeeze the glue coated by the coating assembly between the two, so that the two can be better bonded by glue; When the tops of the upper and the welt fit against the bottom of the support plate 10 and move into the rectangular opening 601, by placing the upper and the welt on one side of the glue coating groove box 8 respectively, and then pushing the two to move. When moving, the inner sides of the two will fit against the outer wall of the glue coating groove box 8 and move. The two blocking blocks 802 will be pushed and squeeze the return spring 804 between the limit slide plates 803 and move towards the vertical plate 805 at the liquid outlet 801. The liquid outlet 801 will be opened, and the glue in the glue coating groove box 8 will flow out from the liquid outlet 801 to the inner sides of the upper and the welt. When the two move, the rotating shaft 304 will push and squeeze between the two, thus realizing the bonding operation between the two and playing the role of automatically coating glue between the upper and the welt. When the two lose contact with the glue coating groove box 8, the blocking blocks 802 will lose the thrust, and the two blocking blocks 802 will be reset under the push of the return spring 804 and snap back into the liquid outlet 801 again to block the liquid outlet 801 and prevent the glue in the glue coating groove box 8 from flowing out during non-operation, resulting in waste of resources; When the inner sides of the shoe upper and the welt are attached to the outer wall of the support plate 10 and slide into the rectangular opening 601, the shoe upper and the welt will move towards the rectangular opening 601 through the space between the two pushing blocks 307. The two pushing blocks 307 will limit and push the outer walls of the two, so that the inner sides of the shoe upper and the welt can better fit the outer wall of the glue application groove box 8. The two will be limited and extruded by the pushing blocks 307 to open the blocking block 802. The glue placed in the glue application groove box 8 can better flow between the two, playing a role in limiting and pushing the shoe upper and the welt to fit the outer wall of the glue application groove box 8, preventing the phenomenon that the shoe upper and the welt cannot fit well with the glue application groove box 8, the glue cannot be well applied between the shoe upper and the welt, and the two are dislocated due to poor bonding effect. By changing the position of the pushing blocks 307 following the movement of the rotating shaft 304, the pushing blocks 307 can limit various shoe uppers and welts with different specifications; When the shoe upper and the welt are placed at the bottom of the support plate 10, by overlapping the two and placing them on one side of the flow dividing block 501 respectively, and then pushing the two to move, the two will slide along the outer wall of the flow dividing block 501 and finally slide onto the outer wall of the glue application groove box 8. The setting of the flow dividing block 501 can guide the movement between the two, enabling the two to better enter between the glue application groove box 8 and the rectangular opening 601 during movement, playing a role in guiding the movement; When the glue in the glue application groove box 8 flows out through the liquid outlet 801 to coat the shoe upper and the welt, the liquid supply tank 5 continuously supplies glue to the glue application groove box 8 through the liquid flow pipe 502, preventing the glue in the glue application groove box 8 from becoming less, affecting the coating operation between the shoe upper and the welt, and making the bonding effect between the shoe upper and the welt worse, playing a role in supplementing the glue in the glue application groove box 8.

[0038] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic tightening device for the shoe upper gripping line, characterized in that: It includes a base, on the top of which a fastening box and a rectangular box are fixedly installed. The fastening box is placed on one side of the rectangular box. Inside the fastening box, a tensioning component is arranged, which is used to drive the drawstring to connect the shoe upper and the welt. Inside the rectangular box, a coating component is arranged, which includes a glue coating groove box with glue inside. The coating component is used to drive the glue to coat the shoe upper and the welt. Inside the fastening box, a calibration component is arranged, which is used to calibrate the position between the shoe upper and the welt when the tensioning component uses the drawstring to connect the shoe upper and the welt.

2. The automatic tightening device for the shoe upper gripping line according to claim 1, wherein: The tensioning component includes a thread fishing device and a threading device. The thread fishing device is arranged on one side of the threading device, and both are placed on one side of the shoe upper and the welt respectively.

3. The automatic tightening device for the shoe upper gripping line according to claim 2, characterized in that: On the top of the fastening box, a wire fixing disc is fixedly installed, which is used to place the coil. One end of the drawstring is placed inside the threading device.

4. The automatic tightening device for the shoe upper grasping line according to claim 3, characterized in that: The calibration component includes a support plate. On the top of the support plate, connecting frames are symmetrically and fixedly installed. One end of each of the two connecting frames is fixedly connected to the outer wall of the fastening box. One side of the support plate is fixedly connected to the outer wall of the base. On the top of the support plate, limit sliding rods are symmetrically and fixedly installed. Displacement blocks are slidably connected to the outer walls of the two limit sliding rods. On one side of each of the two displacement blocks, a connecting rod is fixedly installed. On one end of each of the two connecting rods, a clamping plate is fixedly installed. The bottoms of the two clamping plates are slidably connected to the top of the support plate. Between the two displacement blocks and the inner wall of the rectangular box, return spring blocks are arranged, and the two return spring blocks are respectively placed outside the two limit sliding rods.

5. The automatic tightening device for the shoe upper grasping line according to claim 4, characterized in that: A sliding opening is formed in the inner wall of the support plate. The two clamping plates are respectively placed on one side of the sliding opening. The inner walls of one ends of the two clamping plates are both inclined sliding surfaces. Rectangular openings are formed at the other ends of the two clamping plates. The other ends of the two clamping plates are slidably connected to each other. A frame plate is fixedly installed on the inner wall of the rectangular box, and a limiting plate is fixedly installed on one side of the frame plate.

6. The automatic tightening device for the shoe upper grasping line according to claim 5, characterized in that: On the top of the support plate, rotating shafts are symmetrically and movably connected. Groove blocks are symmetrically and fixedly installed on the inner walls of the two displacement blocks. Chute grooves are symmetrically formed in the inner walls of the two rotating shafts. The outer walls of the four groove blocks can respectively slide with the inner walls of the four chute grooves. On the top of the support plate, inclined sliding plates are symmetrically and rotatably connected. One ends of the two inclined sliding plates are respectively hinged to the outer walls of the two rotating shafts.

7. The automatic tightening device for the upper gripping line according to claim 6, characterized in that: The coating component further includes plug blocks. The number of the plug blocks is two. Limit sliding plates are symmetrically and fixedly installed on the inner wall of the glue coating groove box. A vertical plate is installed between the two limit sliding plates. The outer walls of the two plug blocks can respectively slide with the inner sides of the two limit sliding plates. Between the outer walls of the two plug blocks and the two sides of the vertical plate, a plurality of reset springs are arranged. Liquid outlet openings are symmetrically formed in the inner wall of the glue coating groove box. The outer walls of the two plug blocks can respectively fit and slide with the inner walls of the two liquid outlet openings. The glue coating groove box is fixedly installed at the bottom of the frame plate and is placed at the middle position of one end of the sliding opening.

8. The automatic tightening device for the shoe upper grasping line according to claim 7, characterized in that: On the other side of each of the two displacement blocks, a push block is fixedly installed. The shape formed on one side of each of the two push blocks can be complementary to the outer shape of the glue coating groove box.

9. The automatic tightening device for the shoe upper gripping line according to claim 8, characterized in that: On one side of the glue coating groove box, a flow dividing block is fixedly installed. The top of the flow dividing block is fixedly connected to the bottom of the frame plate. The size of one side of the flow dividing block is the same as that of one side of the glue coating groove box. The two sides at one end of the flow dividing block are both inclined sliding surfaces.

10. The automatic tightening device for the shoe upper grasping line according to claim 9, characterized in that: A liquid replenishment tank is fixedly installed at the top of the shelf board. A liquid flow pipe is fixedly installed on the outer wall of the liquid replenishment tank. One end of the liquid flow pipe penetrates through the inner wall of the shelf board and is fixedly connected to the top of the glue application groove box.

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