Feeding and discharging mechanism of patch pocket machine

Abstract

The invention discloses a feeding and discharging mechanism of a patch pocket machine. The feeding and discharging mechanism comprises a workbench, a positioning plate, a front-back driving assembly, an outer material pressing and discharging assembly and an inner material pressing assembly. The outer material pressing and discharging assembly comprises a material pressing block and an outer material pressing air cylinder installed on the positioning plate and used for driving the material pressing block to move up and down. The pressing block comprises a U-shaped pressing part and a blanking part; the outer pressing and discharging assembly comprises two outer pressing blocks located in the U-shaped pressing part and two outer connecting blocks with the two ends adjustably and correspondingly connected with the U-shaped pressing part and the outer pressing blocks. The inner material pressing assembly comprises a pneumatic claw, an inner material pressing air cylinder, two inner positioning seats, two inner connecting blocks and two inner pressing blocks, wherein the inner material pressing air cylinder is installed on the positioning plate and used for driving the pneumatic claw to move up and down, the two inner positioning seats are installed on two clamps of the pneumatic claw respectively, the two inner connecting blocks are installed on the two inner positioning seats respectively, and the two inner pressing blocks are installed on the two inner connecting blocks respectively. And a sewing groove is formed between the adjacent outer pressing block and inner pressing block. The two inner pressing blocks can be suitable for pocket cloth with different widths.

Description

Technical Field

[0001] The invention relates to the technical field of pocket pasting machines, and in particular to a feeding and unloading mechanism of a pocket pasting machine. Background Art

[0002] The pocket patching machine can be used for sewing pockets on jeans, work clothes, shirts and other clothing. Flat stitch sewing and bartacking can be completed at one time. It is suitable for sewing various back pockets of jeans, work clothes pockets and shirt pockets.

[0003] For the pocket sticking machine, application publication number CN102899817A discloses a fully automatic pocket sticking machine, which specifically discloses a sewing machine head, a stacking device, a pressing device and a feeding device; the stacking device includes a mounting bracket that can move up and down and is arranged on a fixed bottom plate; the mounting bracket is provided with a template for placing bag pieces, and the template can perform horizontal telescopic movement relative to the mounting bracket; a rotatable mounting arm and a mounting arm cylinder for driving the mounting arm to rotate are provided on the upper part of the mounting bracket; the mounting arm is fixedly connected to a mounting side plate, and the mounting side plate is slidably installed with a movable bracket and a mounting arm cylinder for driving the movable bracket Lifting cylinder; the movable bracket is fixedly connected with a pressure plate for cooperating with the template to press the material and a stacking bracket provided with a stacking cylinder; the stacking cylinders are at least three and are distributed around the stacking bracket; the piston rod of each stacking cylinder is connected with a stacking plate for folding the edge of the bag sheet to the bottom of the template; the pressing device is provided with a feeding mounting plate connected to the feeding device, and the feeding mounting plate is provided with an auxiliary presser foot for pressing the bag sheet on the template and a pressing frame for pressing the cloth, and clamping blocks are distributed around the pressing frame; the feeding device drives the pressing device to send the pressed bag sheet and cloth to the sewing position of the sewing machine head. The feeding mounting plate is fixed with three groups of lifting and pressing mechanisms, each group of lifting and pressing mechanisms includes a mounting plate fixed on the feeding mounting plate, the mounting plate is provided with a presser foot mounting plate slidingly through a lifting guide rail, and a lifting cylinder for driving the presser foot mounting plate to move up and down is provided between the mounting plate and the feeding mounting plate; the pressing frame is connected to the presser foot mounting plates of the two groups of lifting and pressing mechanisms on the outside, and the auxiliary presser foot is connected to the presser foot mounting plate of the middle group of lifting and pressing mechanisms. The auxiliary presser foot includes a slider guide plate fixedly connected to the presser foot mounting plate and a driving plate driven by an auxiliary cylinder, the slider guide plate is provided with a transverse guide groove; the driving plate is provided with an oblique driving groove; two sliders arranged side by side are provided between the slider guide plate and the driving plate, and each slider is connected with an auxiliary pressing plate for pressing the bag sheet; the slider is provided with a guide shaft, and the guide shaft is respectively matched with the guide groove and the driving groove; the piston rod of the auxiliary cylinder is connected to the driving plate, driving the driving plate to move forward and backward relative to the slider guide plate. The pressing block is connected with an adjusting arm, the adjusting arm is provided with an adjusting slot, and the adjusting slot is connected with a screw on the pressing frame.

[0004] However, the above-mentioned fully automatic pocket sticking machine still has some disadvantages, for example, the stroke of the two sliders of the auxiliary presser foot is limited by the length of the two oblique driving grooves during the process of approaching or separating from each other along the guide groove. At this time, if the two oblique driving grooves are designed to be long enough, although the two sliders can be separated from each other relatively far, that is, the two sliders can be used to press the outer edge of the bag sheet with a larger width. However, the design under this long driving groove structure will have other problems. For example, if it is necessary to sew a bag sheet with a very small width, it will be limited by the maximum width between the two driving grooves, so that it cannot be used to press the bag sheet narrower than the maximum width between the two driving grooves, otherwise the sewing machine head will hit the driving plate and other components during sewing; similarly, if the two oblique driving grooves are designed to be shorter, at this time, although the maximum width between the two driving grooves is reduced, so that it can be used to press the outer edge of the bag sheet with a very small width, but because the stroke of the two sliders is limited by the length of the oblique driving grooves. Therefore, if the length of the driving groove is shortened, the travel of the two sliders when they are separated from each other will be affected. Specifically, the distance between the two sliders when they are separated is limited so that they cannot be used to press the outer edge of the bag sheet with a larger width.

[0005] In summary, the design of the auxiliary presser foot is to set two oblique driving grooves as the movement tracks of the two sliders on the driving plate, thereby limiting the movement routes of the two sliders, and further limiting the use scope of the auxiliary presser foot. Specifically, when it can be used to press the bag sheet with a larger width, it cannot act on the bag sheet with a smaller width due to the longer length of the driving groove; and when it can be used to press the bag sheet with a smaller width, it cannot act on the bag sheet with a larger width due to the shorter length of the driving groove. In addition, the overall structure of the auxiliary presser foot is relatively complex.

[0006] Therefore, it is necessary to improve the existing technology. Summary of the invention

[0007] In view of the problems existing in the above-mentioned prior art, the purpose of the present invention is to provide a feeding and unloading mechanism of a pocket pasting machine, which eliminates the settings of a driving plate, a driving groove, etc. and utilizes an air claw to drive two inner pressure blocks, so that when the two clamps of the air claw are unrestrictedly moved closer to or apart from each other, the two inner pressure blocks can also be driven to move closer to or apart from each other unrestricted, and finally the two inner pressure blocks can be suitable for pocket fabrics of various widths; in addition, its overall structure is relatively simple.

[0008] In order to achieve the above object, the technical solution of the present invention is:

[0009] A feeding and unloading mechanism of a bag pasting machine comprises a workbench, a positioning plate, a front and rear driving assembly mounted on the workbench and used for driving the positioning plate to move forward and backward, and an external pressing and unloading assembly and an internal pressing assembly respectively mounted on the positioning plate; the external pressing and unloading assembly comprises a pressing block and an external pressing cylinder mounted on the positioning plate and used for driving the pressing block to move up and down; the pressing block comprises a U-shaped pressing portion and a unloading portion integrally formed at the rear side of the U-shaped pressing portion; the external pressing and unloading assembly also comprises two external pressing blocks respectively located in the U-shaped pressing portion and distributed front and back, and two external connecting blocks respectively and adjustably connected to the U-shaped pressing portion and the external pressing blocks at both ends; by correspondingly adjusting the external connecting blocks and the external pressing blocks, the two external pressing blocks can be individually moved forward, backward, left and right The U-shaped pressing part can be used to push the sewn workpiece backward to the unloading port on the workbench in the process of synchronous movement with the U-shaped pressing part to realize unloading; the internal pressing assembly includes an air claw, an internal pressing cylinder installed on the positioning plate and used to drive the air claw to move up and down, two internal positioning seats installed on two clamps of the air claw in a front-to-back distribution, two internal connecting blocks installed on the two internal positioning seats and distributed in the front-to-back direction and can be adjusted front-to-back, and two internal pressing blocks installed on the two internal connecting blocks and can be adjusted left-to-right and are located between the two external pressing blocks; a sewing groove is formed between the adjacent external pressing blocks and the internal pressing blocks; by correspondingly adjusting the internal connecting blocks and the internal pressing blocks, the two internal pressing blocks can be individually adjusted in the front, back, left and right directions. Since the two inner pressure blocks are driven by the air claws and the two clamps of the air claws can move closer to or away from each other without restriction, the two inner pressure blocks can also move closer to or away from each other without restriction, thereby making the two inner pressure blocks suitable for pocket fabrics of various widths.

[0010] The following technical solutions are also included:

[0011] Further, a plurality of first outer adjustment holes evenly distributed along the left-right direction are arranged on each of the outer pressure blocks, and a plurality of second outer adjustment holes evenly distributed around the U-shaped pressure portion are arranged; an outer positioning hole and an outer strip hole distributed along the length direction are arranged on each of the outer connection blocks; the outer positioning hole is connected to one of the first outer adjustment holes by bolts; the outer strip hole is connected to one of the second outer adjustment holes by bolts; a first inner strip hole extending forward and backward is arranged on each of the inner positioning seats; a plurality of first inner adjustment holes evenly distributed along the left-right direction are arranged on each of the inner pressure blocks; a second inner adjustment hole corresponding to the first inner strip hole and a second inner strip hole corresponding to the first inner adjustment hole and extending along the left-right direction are arranged on each of the inner connection blocks; the first inner strip hole is connected to one of the second inner adjustment holes by bolts; the second inner strip hole is connected to one of the first inner adjustment holes by bolts. The above arrangement can facilitate the corresponding adjustment of the outer pressure block and the inner pressure block, so as to change the position and direction of the outer pressure block and the inner pressure block.

[0012] Furthermore, two first inner strip holes are arranged on each inner positioning seat, and each first inner strip hole is connected to a corresponding second inner adjustment hole by a bolt. The above arrangement can ensure the connection stability between the inner connection block and the inner positioning seat.

[0013] Furthermore, two second inner strip holes are respectively arranged on each inner connection block and are distributed on the left and right sides; each second inner strip hole is connected to a corresponding first inner adjustment hole by a bolt. The above arrangement can ensure the stability between the inner pressure block and the inner connection block.

[0014] Furthermore, the opening of the U-shaped pressing portion faces left or right; the inner connecting block and the inner pressing block both pass through the opening of the U-shaped pressing portion and penetrate into the U-shaped pressing portion.

[0015] Furthermore, the two ends of each of the outer connecting blocks are respectively connected to the U-shaped material pressing portion and the top surface of the outer pressing block; each of the inner connecting blocks is "L" shaped; the first end of each of the inner connecting blocks is connected to the inner positioning seat, and the second end is connected to the top surface of the inner pressing block. The above arrangement can facilitate the corresponding connection between the various components.

[0016] Furthermore, the two outer pressing blocks and the two inner pressing blocks are correspondingly in a straight bar shape, an arc shape or a bent shape, so that they can be used for pocket fabrics of different shapes.

[0017] Furthermore, the cross section of the blanking portion is rectangular and a through hole is provided in the middle thereof, so that when the blanking portion is pressing the workpiece, people can use the through hole to observe the condition of the workpiece.

[0018] Furthermore, a first guide assembly and a second guide assembly are respectively arranged on the positioning plate; the first guide assembly includes a first guide rail mounted on the positioning plate and a first slider mounted on the first guide rail movably up and down and connected to the press block; the second guide assembly includes a second guide rail mounted on the positioning plate and a second slider mounted on the second guide rail movably up and down and connected to the cylinder of the air gripper. The above arrangement can ensure the stability of the up and down movement of the outer press block and the inner press block.

[0019] Furthermore, the front-to-back drive assembly includes a fixed drive motor, a driving wheel mounted on the output shaft of the drive motor, a fixed driven wheel matched with the driving wheel, and belts connected to the driving wheel and the driven wheel respectively; the positioning plate is connected to the belt. The above arrangement can facilitate the use of the drive motor to drive the positioning plate to move forward and backward.

[0020] The beneficial effects of the present invention are:

[0021] (1) The overall structure of the present invention is simple, and since each outer pressure block and inner pressure block can be individually adjusted in the front, back, left and right directions, the outer pressure block and the inner pressure block can be used to press the side edges of pocket fabrics of various sizes after being adjusted to the corresponding positions, so as to facilitate the subsequent sewing coordination with the sewing machine head.

[0022] (2) The two inner pressure blocks of the present invention are driven by the air gripper, and because the present invention eliminates the drive plate and drive slot in the prior art, the two clamps of the air gripper can be moved closer to or away from each other without restriction, and the two inner pressure blocks can also be moved closer to or away from each other without restriction, and finally the two inner pressure blocks can be applied to pocket fabrics of various widths. Specifically, as long as the width of the inner pressure block is small enough and the movement stroke of the clamp of the air gripper is large enough, the width of the two inner pressure blocks will be very small after they move closer to each other or the distance between them will be very large after they move away, so the two inner pressure blocks can be applied to pocket fabrics of large or small widths accordingly, and the scope of application is very wide.

[0023] (3) The present invention has a variety of adjustment modes for the outer pressure block and the inner pressure block. For example, the outer pressure block and the inner pressure block can be adjusted to be parallel to each other or slightly inclined (such as similar to an "eight" shape). In this way, the outer pressure block and the inner pressure block can be used not only for sewing conventionally shaped fabrics, but also for sewing unconventionally shaped fabrics (such as fabrics with two sides in an "eight" shape).

[0024] (4) Since the outer pressure block and the inner pressure block of the present invention are adjustable, only one set of molds is needed to replace multiple sets of molds. When different fabrics need to be processed, it not only avoids the trouble of frequent disassembly and replacement of molds, but also greatly saves other mold costs, that is, the use cost is low.

[0025] (5) In the present invention, since the unloading part and the U-shaped pressing part are integrally formed, the unloading part will be synchronously driven to move during the forward and backward movement of the U-shaped pressing part; specifically, when the U-shaped pressing part is in use, while pressing the second workpiece to be sewn and moving backward, the unloading part will move the first sewn workpiece backward to the unloading port of the workbench, thus realizing unloading. It can be seen that this design enables the external pressing cylinder and the front and rear drive components to realize the corresponding movement of workpieces of two different processes at the same time when in operation, thus achieving high work efficiency and eliminating the requirement of setting up a separate unloading mechanism, thus simplifying the overall structure; at the same time, this design not only reduces the cost of the equipment, but also ensures the synchronization of the equipment's movements to avoid asynchronous movements. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ;

[0027] Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ;

[0028] Figure 3 The overall structure of the present invention is shown in FIG. Figure 3 ;

[0029] Figure 4 It is a schematic diagram of the local structure of the present invention Figure 1 ;

[0030] Figure 5 It is a schematic diagram of the local structure of the present invention Figure 2 ;

[0031] Figure 6 This is the use state reference picture 1 of the present invention;

[0032] Figure 7 This is the usage status reference picture 2 of the present invention.

[0033] Reference numerals:

[0034] 1. Workbench; 11. Feeding port;

[0035] 2. Positioning plate;

[0036] 3. Front and rear drive components; 31. Drive motor; 32. Belt;

[0037] 4. External material pressing and material discharging assembly; 41. Material pressing block; 411. U-shaped material pressing part; 4111. Second external adjustment hole; 412. Material discharging part; 42. External material pressing cylinder; 43. External material pressing block; 431. First external adjustment hole; 44. External connecting block; 441. External strip hole; 442. External positioning hole;

[0038] 5. Internal pressing assembly; 51. Air claw; 52. Internal pressing cylinder; 53. Internal positioning seat; 531. First internal strip hole; 54. Internal connecting block; 541. Second internal adjustment hole; 542. Second internal strip hole; 55. Internal pressing block; 551. First internal adjustment hole;

[0039] 6. Sewing slot;

[0040] 7. first guide assembly; 71. first guide rail; 72. first slide block;

[0041] 8. Second guide assembly; 81. Second guide rail; 82. Second slide block. DETAILED DESCRIPTION

[0042] The specific implementation methods according to the present disclosure are described in detail below in conjunction with the accompanying drawings.

[0043] like Figure 1-Figure 7 As shown, a feeding and unloading mechanism of a bag sticking machine includes a workbench 1, a positioning plate 2, a front and rear driving assembly 3 installed on the workbench 1 and used to drive the positioning plate 2 to move forward and backward, and an external pressing and unloading assembly 4 and an internal pressing assembly 5 respectively installed on the positioning plate 2.

[0044] like Figure 1-Figure 5As shown, for the external pressing and unloading assembly 4, it includes a pressing block 41 and an external pressing cylinder 42 installed on the positioning plate 2 and used to drive the pressing block 41 to move up and down; the pressing block 41 includes a U-shaped pressing portion 411 and a unloading portion 412 integrally formed on the rear side of the U-shaped pressing portion 411; the external pressing and unloading assembly 4 also includes two external pressing blocks 43 respectively located in the U-shaped pressing portion 411 and distributed front and back, and two external connecting blocks 44 at both ends of which are respectively adjustable and correspondingly connected to the U-shaped pressing portion 411 and the external pressing block 43; by correspondingly adjusting the external connecting blocks 44 and the external pressing block 43, the two external pressing blocks 43 can be individually adjusted in the front, back, left and right directions. In addition, the unloading portion 412 can be used to push the sewn workpiece backward to the unloading port 11 on the workbench 1 in the process of synchronous movement with the U-shaped pressing portion 411 to realize unloading, that is, one pressing block 41 can realize two functions at the same time.

[0045] like Figure 1-Figure 5 As shown, the internal pressing assembly 5 includes an air gripper 51, an internal pressing cylinder 52 installed on the positioning plate 2 and used to drive the air gripper 51 to move up and down, two internal positioning seats 53 respectively installed on two clamps (not marked in the figure) of the air gripper 51 and distributed front and back, two internal connecting blocks 54 respectively installed on the two internal positioning seats 53 and distributed front and back and adjustable front and back, and two internal pressing blocks 55 respectively installed on the two internal connecting blocks 54 and adjustable left and right and located between the two external pressing blocks 43; a sewing groove 6 is formed between adjacent external pressing blocks 43 and the internal pressing blocks 55; by correspondingly adjusting the internal connecting blocks 54 and the internal pressing blocks 55, the positions of the two internal pressing blocks 55 in the front, back, left and right directions can be adjusted separately.

[0046] In summary, the overall structure of the present invention is simple, and since each outer pressure block 43 and inner pressure block 55 can be individually adjusted in the front, back, left and right directions, the outer pressure block 43 and the inner pressure block 55 can be used to press the sides of pocket fabrics of various sizes after the corresponding position adjustment, so as to facilitate the subsequent sewing coordination with the sewing machine head.

[0047] In addition, since the two inner pressure blocks 55 are driven by the air gripper 51, and since the present invention does not provide a driving plate and a driving slot, etc., the two clamps of the air gripper 51 can be brought close to or separated from each other without restriction, and the two inner pressure blocks 55 can also be brought close to or separated from each other without restriction, and finally the two inner pressure blocks 55 can be applied to pocket fabrics of various widths. Specifically, as long as the width of the inner pressure block 55 is small enough and the movement stroke of the clamp of the air gripper 51 is large enough, the width of the two inner pressure blocks 55 after they are brought close to each other will be very small or the distance between them after they are separated will be very large, so that the two inner pressure blocks 55 can be correspondingly applied to pocket fabrics of large or small widths, and the scope of use is very wide.

[0048] Moreover, since the adjustment modes of the outer pressure block 43 and the inner pressure block 55 have multiple combinations, for example, the outer pressure block 43 and the inner pressure block 55 can be adjusted to be parallel to each other or slightly inclined (such as similar to an "eight" shape), so that the outer pressure block 43 and the inner pressure block 55 can be used not only for sewing conventionally shaped fabrics, but also for sewing unconventionally shaped fabrics (such as fabrics with two sides in a similar "eight" shape). At the same time, since the outer pressure block 43 and the inner pressure block 55 are adjustable, only one set of molds is needed to replace multiple sets of molds. When different fabrics need to be processed, not only the trouble of frequent disassembly and replacement of molds is avoided, but also other mold costs are greatly saved, that is, the cost of use is low.

[0049] It should also be noted that, since the unloading part 412 and the U-shaped pressing part 411 are integrally formed, the unloading part 412 will be synchronously driven to move during the forward and backward movement of the U-shaped pressing part 411; specifically, when in use, when the U-shaped pressing part 411 moves backward while pressing the second workpiece to be sewn, the unloading part 412 will move the first sewn workpiece backward to the unloading port 11 of the workbench 1, thus realizing unloading. It can be seen that this design enables the external pressing cylinder 42 and the front and rear drive components 3 to simultaneously realize the corresponding movement of workpieces of two different processes when in action, with high work efficiency, eliminating the requirement of setting up a separate unloading mechanism, that is, simplifying the overall structure; at the same time, this design not only reduces the cost of the equipment, but also ensures the synchronization of the equipment's movements to avoid asynchronous movements.

[0050] like Figure 1 , Figure 3 and Figure 5As shown, preferably, a plurality of first outer adjustment holes 431 evenly distributed along the left-right direction are provided on each outer pressure block 43, and a plurality of second outer adjustment holes 4111 are evenly distributed around the U-shaped pressing portion 411; an outer positioning hole 442 and an outer strip hole 441 distributed along the length direction are respectively provided on each outer connection block 44; the outer positioning hole 442 is connected to a first outer adjustment hole 431 by bolts; the outer strip hole 441 is connected to a second outer adjustment hole 4111 by bolts. Therefore, after the above holes are set, the outer connection block 44 and the outer pressure block 43 can be adjusted accordingly by simply loosening the corresponding bolts, so as to change the position and direction of the outer pressure block 43, and the adjustment is completed by tightening the bolts after the adjustment is completed.

[0051] like Figure 1 , Figure 3 and Figure 5 As shown, preferably, each inner positioning seat 53 is provided with a first inner strip hole 531 extending forward and backward; each inner pressure block 55 is provided with a plurality of first inner adjustment holes 551 evenly distributed in the left-right direction; each inner connecting block 54 is provided with a second inner adjustment hole 541 corresponding to the first inner strip hole 531 and a second inner strip hole 542 corresponding to the first inner adjustment hole 551 and extending in the left-right direction; the first inner strip hole 531 is connected to a second inner adjustment hole 541 by bolts; the second inner strip hole 542 is connected to a first inner adjustment hole 551 by bolts. Similarly, after the above-mentioned holes are provided, the inner connecting block 54 and the inner pressure block 55 can be adjusted accordingly by simply loosening the corresponding bolts, so as to change the position and direction of the inner pressure block 55, and the adjustment is completed by tightening the bolts after the adjustment is completed.

[0052] like Figure 1 , Figure 3 and Figure 5 As shown, in this embodiment, two first inner strip holes 531 distributed up and down are respectively provided on each inner positioning seat 53; each first inner strip hole 531 is connected to a corresponding second inner adjustment hole 541 by bolts. Therefore, since there are two first inner strip holes 531 on each inner positioning seat 53, this design can also ensure the connection stability between the inner connection block 54 and the inner positioning seat 53; at the same time, the upper and lower heights of the inner connection block 54 and the inner pressure block 55 can be adjusted by combining different second inner adjustment holes 541 with the first inner strip hole 531. For example, if the corresponding second inner adjustment hole 541 is connected to the first inner strip hole 531 located above by bolts, the inner connection block 54 and the inner pressure block 55 can be adjusted upward; similarly, if the corresponding second inner adjustment hole 541 is connected to the first inner strip hole 531 located below by bolts, the inner connection block 54 and the inner pressure block 55 can be adjusted downward.

[0053] like Figure 1 , Figure 3 and Figure 5 As shown, preferably, two second inner strip holes 542 distributed on the left and right are respectively provided on each inner connection block 54; each second inner strip hole 542 is connected to a corresponding first inner adjustment hole 551 through a bolt. Therefore, by providing two second inner strip holes 542 to connect with the inner pressure block 55, the stability between the inner pressure block 55 and the inner connection block 54 can be ensured.

[0054] like Figure 1 , Figure 3 and Figure 5 As shown, preferably, the number of the external connection blocks 44 on each external pressing block 43 can also be set to two, so as to improve the connection stability between the U-shaped pressing portion 411 and each external pressing block 43 and avoid the external pressing block 43 from loosening.

[0055] like Figure 1 , Figure 3 and Figure 5 As shown, preferably, in order to ensure the movement stability of the pressing block 41, three evenly distributed external pressing cylinders 42 are provided. However, those skilled in the art should know that the number of the external pressing cylinders 42 can be increased or reduced according to actual needs.

[0056] like Figure 1 As shown, in this embodiment, the opening of the U-shaped pressing portion 411 can be facing left or right. Of course, after adjusting the opening direction of the U-shaped pressing portion 411, the positioning plate 2 and the front and rear drive components 3 need to be adjusted accordingly; the internal connecting block 54 and the internal pressing block 55 are both inserted into the U-shaped pressing portion 411 through the opening of the U-shaped pressing portion 411.

[0057] like Figure 1 , Figure 3 and Figure 5 As shown, in order to facilitate the use of the external pressing block 43, the two ends of each external connecting block 44 are respectively connected to the U-shaped pressing portion 411 and the top surface of the external pressing block 43. In addition, each internal connecting block 54 is "L" shaped; the first end of each internal connecting block 54 is connected to the internal positioning seat 53, and the second end is connected to the top surface of the internal pressing block 55, that is, the internal pressing block 55 is connected to the internal positioning seat 53 through the internal connecting block 54.

[0058] Preferably, the two outer pressing blocks 43 and the two inner pressing blocks 55 are respectively in a straight bar shape, an arc shape or a bent shape. Therefore, by setting the outer pressing blocks 43 and the inner pressing blocks 55 in different shapes, sewing grooves 6 of different shapes can be formed between each outer pressing block 43 and the inner pressing block 55, so that they can press the side edges of pocket fabrics of different shapes. For example, when the outer pressing block 43 and the inner pressing block 55 are both in a straight bar shape, the pocket fabrics with straight edges on both sides can be pressed accordingly; and if the outer pressing block 43 and the inner pressing block 55 are both in an arc shape or a bent shape, the pocket fabrics with arc edges or bent edges on both sides can be pressed accordingly.

[0059] like Figure 1-Figure 5 As shown, in this embodiment, the two outer pressing blocks 43 and the two inner pressing blocks 55 are all in the shape of straight bars.

[0060] like Figure 1-Figure 5 As shown, in this embodiment, the cross-section of the blanking portion 412 is rectangular and a through hole (not marked in the figure) is provided in the middle thereof extending upward and downward, so that the blanking portion 412 can be used to press the surroundings of the workpiece, and when the blanking portion 412 presses the workpiece, people can directly observe the condition of the workpiece through the through hole to avoid the situation where the material is stuck but the staff are unaware of it.

[0061] like Figure 1 As shown, preferably, a first guide assembly 7 and a second guide assembly 8 are respectively provided on the positioning plate 2; the first guide assembly 7 includes a first guide rail 71 installed on the positioning plate 2 and a first slider 72 installed on the first guide rail 71 movably up and down and connected to the pressing block 41. The second guide assembly 8 includes a second guide rail 81 installed on the positioning plate 2 and a second slider 82 installed on the second guide rail 81 movably up and down and connected to the cylinder body of the air claw 51. Therefore, the setting of the first guide assembly 7 can make the pressing block 41 and the outer pressing block 43 move up and down more stably. Similarly, the setting of the second guide assembly 8 can make the inner pressing block 55 move up and down more stably.

[0062] like Figure 1 and Figure 2 As shown, in this embodiment, the front and rear drive assembly 3 includes a fixed drive motor 31, a driving wheel (not shown in the figure) mounted on the output shaft of the drive motor 31, a fixed driven wheel (not shown in the figure) matched with the driving wheel, and a belt 32 connected to the driving wheel and the driven wheel respectively; the positioning plate 2 is connected to the belt 32. Therefore, after the driving motor 31 drives the belt 32 to rotate forward and backward, the positioning plate 2 can be synchronously driven to move forward and backward, and in the process of the positioning plate 2 moving forward and backward, the external material pressing and unloading assembly 4 and the internal material pressing assembly 5 are synchronously driven to move forward and backward.

[0063] The specific use principle of the present invention is introduced below to facilitate understanding of the present invention:

[0064] First, the present invention is installed at a corresponding position of a pocket sticking machine;

[0065] Next, after the folded pocket fabrics and trouser leg fabrics are stacked on each other through the cooperation of the feeding mechanism (not shown) and the folding mechanism (not shown), the front and rear driving components 3 drive the external pressing and unloading components 4 and the internal pressing component 5 to move forward to the top of the stacked pocket fabrics and trouser leg fabrics;

[0066] Next, the outer pressing cylinder 42 and the inner pressing cylinder 52 are respectively operated, so that the four sides of the U-shaped pressing part 411 are pressed on the four sides of the trouser leg fabric; at the same time, the outer pressing block 43 and the inner pressing block 55 are respectively pressed on the corresponding positions of the two side edges of the pocket fabric, so as to position the pocket fabric properly. Of course, there is a sewing groove 6 between the outer pressing block 43 and the inner pressing block 55 for the sewing machine head to perform sewing action;

[0067] Next, the front and rear drive assembly 3 drives the external material pressing and feeding assembly 4 and the internal material pressing assembly 5 to move backward and drive the cloth to be sewn to move to the bottom of the sewing machine head (not shown in the figure);

[0068] Next, after the sewing machine head has finished sewing a seam along the outer edge of the inner pressing block 55 on both sides of the fabric, the inner pressing cylinder 52 drives the inner pressing block 55 to rise, and then the air claw 51 drives the two inner pressing blocks 55 to approach each other for a certain distance, and then the inner pressing cylinder 52 drives the inner pressing block 55 to descend to the corresponding position of the pocket fabric, and then the sewing machine head sews another seam along the outer edge of the inner pressing block 55;

[0069] Next, after the stitches are sewn, the front and rear drive components 3 continue to drive the outer pressing and unloading components 4 and the inner pressing component 5 forward to move to the position of the stacked pocket fabrics and trouser leg fabrics (i.e., the workpieces to be sewn), and the unloading portion 412 at this time is also just pressed on the first workpiece that has been sewn. Later, when the front and rear drive components 3 are driven backward, since the unloading portion 412 has been pressed on the first sewn workpiece, the first sewn workpiece and the workpiece to be sewn will move backward at the same time; and after the workpiece to be sewn is moved into place, the first sewn workpiece will also move to the unloading port 11 of the workbench 1 at the same time, that is, unloading is realized, and then the sewing machine head can sew the workpiece to be sewn again;

[0070] Next, if Figure 1 and Figure 5As shown, when the outer pressure block 43 and the inner pressure block 55 are to be adjusted, the bolts at the corresponding positions can be loosened according to the positions to be adjusted to perform subsequent adjustments; for example, if the two sides of the pocket fabric are one long and the other short, it is only necessary to loosen the bolts between the inner connecting block 54 and the inner pressure block 55, and then the end of one of the inner pressure blocks 55 can be adjusted to be further to the left than the end of the other inner pressure block 55, so that the two different inner pressure blocks 55 can be pressed against the sides of the pocket fabric of different lengths, and the bolts can be tightened in the corresponding holes after the adjustment is completed to complete the adjustment; in addition, the bolts between the outer pressure block 43 and the outer connecting block 44 can be loosened accordingly, and then the end of one of the outer pressure blocks 43 can be adjusted to be further to the left than the end of the other outer pressure block 43, and the corresponding bolts can be tightened in the corresponding holes after the adjustment is completed to complete the adjustment;

[0071] Next, if you want to adjust the width of the sewing groove 6, you only need to loosen the bolts between the outer connecting block 44 and the U-shaped pressing part 411, the bolts between the outer connecting block 44 and the outer pressure block 43, and the bolts between the inner connecting block 54 and the inner positioning seat 53. Then you can adjust the position between the outer pressure block 43 and the inner pressure block 55 in the front-to-back direction to change the size of the sewing groove 6. Moreover, when adjusting, you can also achieve corresponding position adjustment according to the actual stitching style you want to sew. I will not go into details here. After the adjustment is completed, the corresponding bolts can be locked in the corresponding holes to complete the adjustment.

[0072] The scope of the present invention is not defined by the above-described embodiments but by the appended claims and their equivalents.

Claims

1. A feeding and unloading mechanism of a bag sticking machine, characterized in that: It includes a workbench, a positioning plate, a front and rear driving assembly installed on the workbench and used to drive the positioning plate to move forward and backward, and an external material pressing and unloading assembly and an internal material pressing assembly respectively installed on the positioning plate; The external pressing and blanking assembly includes a pressing block and an external pressing cylinder installed on the positioning plate and used to drive the pressing block to move up and down; the pressing block includes a U-shaped pressing portion and a blanking portion integrally formed at the rear side of the U-shaped pressing portion; the external pressing and blanking assembly also includes two external pressing blocks respectively located in the U-shaped pressing portion and distributed front and back, and two external connecting blocks at both ends respectively and adjustably connected to the U-shaped pressing portion and the external pressing block; by correspondingly adjusting the external connecting blocks and the external pressing blocks, the positions of the two external pressing blocks in the front, rear, left and right directions can be adjusted separately; the blanking portion can be used to push the sewn workpiece backward to the blanking port on the workbench during the synchronous movement with the U-shaped pressing portion to realize blanking; The inner pressing assembly includes an air gripper, an inner pressing cylinder mounted on the positioning plate and used to drive the air gripper to move up and down, two inner positioning seats respectively mounted on two clamps of the air gripper and distributed front and back, two inner connecting blocks respectively mounted on the two inner positioning seats and distributed front and back and adjustable front and back, and two inner pressing blocks respectively mounted on the two inner connecting blocks and adjustable left and right and located between the two outer pressing blocks; a sewing groove is formed between the adjacent outer pressing blocks and the inner pressing blocks; by correspondingly adjusting the inner connecting blocks and the inner pressing blocks, the positions of the two inner pressing blocks can be adjusted in the front, back, left and right directions respectively; because the two inner pressing blocks are driven by the air gripper and because the two clamps of the air gripper can be moved closer to or apart from each other without restriction, the two inner pressing blocks can also be moved closer to or apart from each other without restriction, thereby making the two inner pressing blocks suitable for pocket fabrics of various widths.

2. The feeding and unloading mechanism of the bag sticking machine according to claim 1 is characterized in that: A plurality of first outer adjustment holes evenly distributed in the left-right direction are arranged on each of the outer pressing blocks, and a plurality of second outer adjustment holes evenly distributed around the U-shaped pressing portion are arranged; an outer positioning hole and an outer strip hole distributed along the length direction thereof are arranged on each of the outer connecting blocks; the outer positioning hole is connected to one of the first outer adjustment holes by bolts; the outer strip hole is connected to one of the second outer adjustment holes by bolts; A first inner strip hole extending forward and backward is provided on each of the inner positioning seats; a plurality of first inner adjustment holes evenly distributed in the left-right direction are provided on each of the inner pressure blocks; a second inner adjustment hole corresponding to the first inner strip hole and a second inner strip hole corresponding to the first inner adjustment hole and extending in the left-right direction are provided on each of the inner connecting blocks; the first inner strip hole is connected to one of the second inner adjustment holes by bolts; the second inner strip hole is connected to one of the first inner adjustment holes by bolts.

3. The feeding and unloading mechanism of the bag sticking machine according to claim 2 is characterized in that: Two first inner strip-shaped holes distributed up and down are respectively arranged on each of the inner positioning seats; each of the first inner strip-shaped holes is correspondingly connected to one of the second inner adjustment holes through a bolt.

4. The feeding and unloading mechanism of the bag sticking machine according to claim 2 is characterized in that: Two second inner strip-shaped holes distributed on the left and right are respectively arranged on each of the inner connection blocks; each of the second inner strip-shaped holes is connected to a corresponding first inner adjustment hole through a bolt.

5. The feeding and unloading mechanism of the bag sticking machine according to claim 2 is characterized in that: The opening of the U-shaped pressing part faces left or right; the inner connecting block and the inner pressing block both penetrate into the U-shaped pressing part through the opening of the U-shaped pressing part.

6. The feeding and unloading mechanism of the bag sticking machine according to claim 1 is characterized in that: The two ends of each of the external connecting blocks are respectively connected to the U-shaped pressing portion and the top surface of the external pressing block; each of the internal connecting blocks is "L"-shaped; the first end of each of the internal connecting blocks is connected to the inner positioning seat, and the second end is connected to the top surface of the internal pressing block.

7. The feeding and unloading mechanism of the bag sticking machine according to claim 1 is characterized in that: The two outer pressing blocks and the two inner pressing blocks are correspondingly in a straight bar shape, an arc shape or a bent shape.

8. The feeding and unloading mechanism of the bag sticking machine according to claim 1 is characterized in that: The cross section of the blanking portion is rectangular and a through hole penetrating from top to bottom is arranged in the middle thereof.

9. The feeding and unloading mechanism of the bag sticking machine according to claim 1 is characterized in that: A first guide assembly and a second guide assembly are respectively arranged on the positioning plate; The first guide assembly includes a first guide rail mounted on the positioning plate and a first slider mounted on the first guide rail movably up and down and connected to the pressing block; The second guide assembly includes a second guide rail installed on the positioning plate and a second slider installed on the second guide rail movably up and down and connected to the cylinder body of the air gripper.

10. The feeding and unloading mechanism of the bag sticking machine according to claim 1, characterized in that: The front and rear drive components include a fixed driving motor, a driving wheel installed on the output shaft of the driving motor, a fixed passive wheel that cooperates with the driving wheel, and belts respectively connected to the driving wheel and the passive wheel; the positioning plate is connected to the belt.

Images