Downward pressing type positioning device and patch pocket sewing machine

Abstract

The utility model discloses a pressing type positioning device and a patch pocket sewing machine, the pressing type positioning device is arranged corresponding to a sewing machine workbench, and the sewing machine workbench is provided with an avoiding groove which is through up and down; the downward pressing type positioning device comprises a pressing rod, a movable carrier plate and a lifting driving unit; the movable carrying plate is arranged corresponding to the receding groove, the pressing rod is installed on the movable carrying plate, the pressing rod is provided with a pressing part which is arranged downwards, and a cloth piece placing groove is formed between the pressing part and the top of the movable carrying plate, so that the cloth piece can horizontally move in the cloth piece placing groove; the lifting driving unit is connected to the movable carrier plate so as to drive the movable carrier plate and the pressing rod to move up and down at the receding groove, so that the area, right opposite to the receding groove, of a cloth piece placed on the sewing machine workbench is pressed by the abutting part to deform downwards, and therefore the sinking deformation amount of the cloth piece is ingeniously and directly controlled on a cloth piece discharging area on the sewing machine workbench; the position of the placed cloth piece can be adjusted horizontally, alignment is facilitated, and meanwhile the cloth piece feeding device is simpler in structure and better in controllability.

Description

Technical Field

[0001] The utility model relates to the field of sewing equipment technology, in particular to a downward pressure positioning device and a pocket sewing machine. Background Art

[0002] The current pocket-sticking machines can realize automatic sewing processing of clothes with pockets, such as shirts, sweatshirts, jeans, etc. Some of them fold and iron the bag pieces and then put them on the cloth unloading workbench, and some of them are equipped with an automatic folding device above the cloth unloading workbench. In this way, the operator only needs to put the cloth pieces on the unloading workbench, and then put the bag pieces on the bag-shaped plate. The automatic folding device folds the bag pieces on the bag-shaped plate and then presses them on the cloth pieces. Then the automatic folding device resets upward, and the feeding pressing plate moves to the unloading workbench to press the folded bag pieces and the cloth pieces together, and the bag-shaped plate resets backward. In this way, the feeding pressing plate can send the folded bag pieces and the cloth pieces together to the bottom of the sewing machine head for sewing processing.

[0003] For some situations where the requirements are higher or the bag pieces and the cloth pieces are expected to fit neatly and tightly (especially the patch pocket processing of jeans), after the cloth pieces are placed on the material discharging workbench, it is necessary to use the two-side pushing mechanism to push the two sides of the cloth pieces slightly to the middle. The pushing mechanism has a complex structure and occupies the space above the workbench. Moreover, it relies on pressing the two sides of the cloth pieces to push them inward, and the control accuracy of the deformation amount in the middle of the cloth pieces is not ideal, which is difficult to meet the processing requirements of orders with high requirements for product processing consistency. Some mechanisms also use clips to clamp the parts that need to be deformed. These existing mechanisms form a fixed clamp for the cloth pieces after they are placed, which is inconvenient to adjust the position of the cloth pieces.

[0004] Therefore, it is necessary to study a new technical solution to solve the above problems. Utility Model Content

[0005] In view of this, the utility model aims to solve the deficiencies in the prior art, and its main purpose is to provide a downward pressure positioning device and a pocket sewing machine, which cleverly control the sinking deformation of the cloth pieces directly in the cloth feeding area on the sewing machine worktable, and the position of the cloth pieces after being placed can be adjusted horizontally for easy alignment. Its structure is simpler and its controllability is better.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A downward-pressing positioning device is arranged corresponding to a sewing machine workbench, and the sewing machine workbench is provided with an escape groove which passes through from top to bottom;

[0008] The downward pressure positioning device includes a pressure rod, a movable carrier plate and a lifting drive unit; the movable carrier plate is arranged corresponding to the avoidance groove, the pressure rod is installed on the movable carrier plate, the pressure rod has a downwardly arranged pressing portion, the pressing portion is located above the movable carrier plate, and a cloth piece placement groove is formed between the pressing portion and the top of the movable carrier plate, so that the cloth piece can move horizontally in the cloth piece placement groove; the lifting drive unit is connected to the movable carrier plate to drive the movable carrier plate and the pressure rod to move up and down at the avoidance groove, so that the pressing portion presses the cloth piece placed on the sewing machine workbench facing the avoidance groove downward.

[0009] As a preferred solution, the pressure rod is connected to a forward and backward translation driving unit, and the forward and backward translation driving unit drives the pressure rod to perform a forward and backward translation movement.

[0010] As a preferred solution, the lifting drive unit drives the front-rear translation drive unit and the pressure rod to move up and down together;

[0011] Alternatively, the front-rear translation driving unit drives the lifting driving unit, the movable carrier plate and the pressure rod to translate back and forth together.

[0012] As a preferred solution, the movable carrier plate is extended forward and backward, and an adjustment slot extending forward and backward is provided on the movable carrier plate. The pressure rod extends into the adjustment slot and can move forward and backward translationally along the adjustment slot.

[0013] As a preferred solution, the installation position of the pressure rod on the movable carrier is adjustable to adjust the height of the pressing portion above the movable carrier, and further adjust the height of the groove in which the cloth piece is placed to meet the placement requirements of different cloth pieces of different thicknesses.

[0014] As a preferred solution, the pressure rod is also connected to a lifting cylinder, which drives the pressure rod to rise relative to the movable carrier plate, so that: the distance between the pressing part and the top of the movable carrier plate increases to form the cloth-putting groove. In this way, after the pressure rod rises, there is enough distance for putting the cloth in. After putting the cloth in, the lifting cylinder retracts and the pressure rod descends, so that the distance between the pressing part and the top of the movable carrier plate becomes smaller, thereby meeting the various requirements of positioning the cloth in the groove and being able to adjust the position of the cloth by movable translation.

[0015] As a preferred embodiment, the pressure rod includes a vertical rod portion and a transverse rod portion, the transverse rod portion is connected to the upper end of the vertical rod and extends forward, and the pressing portion is arranged on the transverse rod portion; the vertical rod portion is installed on an adjustment block and can be adjusted up and down relative to the adjustment block, the adjustment block is installed on an adjustment base in an adjustable position along the front and rear directions, and the front and rear translation drive unit is connected to the adjustment base to drive the adjustment base to translate back and forth.

[0016] As a preferred solution, the lifting drive unit is a cylinder; the movable carrier plate is connected to a stopper, and a stroke adjustment member is arranged at a distance below the stopper. When the cylinder is lowered into place, the stopper abuts against the stroke adjustment member; the top height of the stroke adjustment member is adjusted to change the lowering distance of the cylinder.

[0017] As a preferred solution, a concave cavity is provided on the top of the movable carrier plate, and the pressing portion is located in the concave cavity, so that the cloth piece is placed in the groove lower than the top surface of the sewing machine worktable.

[0018] A pocket patch sewing machine comprises a sewing machine body, on which an automatic folding device is arranged, and below which a downward-pressing positioning device as described in any one of the above items is arranged.

[0019] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that it is mainly through the arrangement of the pressure rod, the movable carrier and the lifting drive unit, and the cloth piece placement groove is formed between the pressing part and the top of the movable carrier, so that the cloth piece can be horizontally moved in the cloth piece placement groove; the lifting drive unit is connected to the movable carrier to drive the movable carrier and the pressure rod to move up and down at the avoidance groove, so that the pressing part will press the cloth piece placed on the sewing machine workbench facing the avoidance groove area to deform downward. In this way, the sinking deformation of the cloth piece is cleverly controlled directly in the cloth piece discharge area on the sewing machine workbench, and the cloth piece after placement can be adjusted horizontally to facilitate alignment, and its structure is simpler and more controllable.

[0020] In order to more clearly illustrate the structural features and functions of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a three-dimensional assembly diagram of the downward-pressing positioning device of the first embodiment of the utility model;

[0022] Figure 2 This is a three-dimensional diagram of the assembly of the push-down positioning device of the first embodiment of the utility model from another angle;

[0023] Figure 3 It is a side view of the downward pressing positioning device of the first embodiment of the utility model;

[0024] Figure 4 This is an exploded view of the push-down positioning device of the first embodiment of the utility model;

[0025] Figure 5 It is a cross-sectional view of the downward pressure positioning device of the first embodiment of the utility model;

[0026] Figure 6 This is an assembly diagram of the downward pressure positioning device of the first embodiment of the utility model applied to a pocket sewing machine;

[0027] Figure 7 yes Figure 6 A partial enlarged diagram of the middle part;

[0028] Figure 8 This is a three-dimensional assembly diagram of the downward-pressing positioning device of the second embodiment of the utility model;

[0029] Fig. 9 This is a three-dimensional assembly diagram of the push-down positioning device of the third embodiment of the present utility model;

[0030] Fig.10 This is a three-dimensional diagram of the assembly of the push-down positioning device of the third embodiment of the utility model from another angle.

[0031] Description of the symbols in the accompanying drawings: sewing machine worktable 1, avoidance groove 2, pressure rod 3, lifting drive unit 4, pressing part 5, front and rear translation drive unit 6, movable carrier plate 7, adjustment groove 8, concave cavity 9, cloth piece insertion groove 10, front section area 11, rear section area 12, vertical rod 13, transverse rod 14, adjustment block 15, adjustment base 16, inclined surface 17, insertion port 18, cylinder mounting plate 19, mounting seat 20, vertical guide rail 21, adapter seat 22, slider 23, stopper 24, stroke adjustment member 25, vertical plane part 26, vertical mounting hole 27, transverse hole 28, lifting cylinder 29, worktable assembly 100, folding device 200, sewing device 300, material collecting device 400, gasket punching and conveying device 500, downward pressure positioning device 600. DETAILED DESCRIPTION

[0032] Please refer to Figures 1 to 10 As shown, it shows the specific structure of various embodiments of the present utility model.

[0033] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "up", "down", "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0034] like Figures 1 to 7 As shown, a downward pressure positioning device is arranged corresponding to the sewing machine worktable, and the sewing machine worktable 1 is provided with an escape groove 2 which passes through from top to bottom; it includes a pressure rod 3, a movable carrier plate 7 and a lifting drive unit 4; the movable carrier plate 7 is arranged corresponding to the escape groove 2, the pressure rod 3 is installed on the movable carrier plate 7, the pressure rod 3 has a pressing portion 5 arranged downward corresponding to the escape groove 2, the pressing portion 5 is located above the movable carrier plate 7, and a cloth piece placement groove 10 is formed between the pressing portion 5 and the top of the movable carrier plate 7, so that the cloth piece can be horizontally moved in the cloth piece placement groove 10, so that the cloth piece can be adjusted horizontally after being placed, which is convenient for alignment. The lifting drive unit 4 is connected to the movable carrier plate 7 to drive the movable carrier plate 7 and the pressure rod 3 to move up and down at the escape groove 2, so that the pressing portion 5 presses the cloth piece placed on the sewing machine worktable 1 facing the escape groove 2 downward. The pressure rod 3 is used to press down to control the downward deformation of the cloth piece, which has good controllability. The lifting drive unit 4 usually adopts a cylinder, and the downward deformation amount can be flexibly controlled by the lifting drive unit 4.

[0035] Taking into account the different thicknesses of different cloth pieces, here, the installation position of the pressure rod 3 on the movable carrier plate 7 is adjustable to adjust the height of the pressing portion 5 above the movable carrier plate 7, and then adjust the height of the groove 10 for the cloth piece to be placed in order to meet the placement requirements of different cloth pieces of different thicknesses.

[0036] The pressure rod 3 is also connected to a front-to-back translation driving unit 6, which drives the pressure rod 3 to move forward and backward. The front-to-back translation driving unit 6 can also adopt a cylinder structure. In this embodiment, the lifting driving unit 4 drives the front-to-back translation driving unit 6 and the pressure rod 3 to move up and down together. Specifically, the front-to-back translation driving unit 6 is installed on the movable carrier 7, and the front-to-back translation driving unit 6 drives the pressure rod 3 to move forward and backward relative to the movable carrier 7, and the lifting driving unit 4 is connected to the movable carrier 7. The lifting driving unit 4 is connected to the bottom of the movable carrier 7 near the front end. Here, the lifting driving unit 4 is set on the mounting seat 20. The lifting driving unit 4 is a cylinder, and the movable carrier is connected to a stopper. The lower spacing of the stopper is provided with a stroke adjustment member. When the cylinder is lowered into place, the stopper abuts against the stroke adjustment member; the top height of the stroke adjustment member is adjusted to change the lowering distance of the cylinder. Specifically, a vertical guide rail 21 is provided on the front side of the mounting seat 20, a transfer seat 22 is connected to the bottom of the movable carrier plate 7 near the front end, a slider 23 is provided on the rear side of the transfer seat 22, and the slider 23 is used to slide up and down along the vertical guide rail 21, and a stopper 24 is extended on the front side of the transfer seat 22, and the stopper 24 cooperates with the stroke adjustment member 25 to control the cylinder's descending distance, which is equivalent to controlling the amount of downward deformation of the cloth piece. The stroke adjustment member 25 can be a micrometer, a screw, etc. By adjusting the stroke adjustment member 25, the lower limit position of the downward displacement of the stopper 24 is changed, so that the cylinder's descending distance is controlled. A micrometer is preferably used, which is convenient to adjust and the adjustment distance value is intuitive.

[0037] The front-to-back translation driving unit 6 is connected to the rear end of the bottom of the movable carrier plate 7 (installed at the rear end of the bottom of the movable carrier plate 7 through the cylinder mounting plate 19). The movable carrier plate 7 is arranged to extend forward and backward, and an adjustment slot 8 extending forward and backward is arranged in the center of the movable carrier plate 7. The pressure rod 3 extends into the adjustment slot 8 and can move forward and backward along the adjustment slot 8. A concave cavity 9 is arranged at the top of the movable carrier plate 7, and the adjustment slot 8 is arranged corresponding to the bottom of the concave cavity 9. The pressing part 5 is located in the concave cavity 9. The arrangement of the concave cavity 9 saves space and will not interfere with the original pressing plate normally configured at this station. Moreover, since the cloth piece placement slot 10 is lower than the top surface of the sewing machine worktable 1, after the cloth piece is placed, a part of the cloth piece is pressed and positioned by the pressure rod 3, or at least a certain degree of pre-pressing effect is formed, so that the cloth piece will not loosen or shift during the subsequent downward pressing action.

[0038] The front area 11 of the movable carrier plate 7 is smaller than the rear area 12. The front and rear directions are defined as follows: the cloth piece is placed on the front side, the pressure rod 3 is located on the rear side of the placed cloth piece, and the front-to-back translation drive unit 6 drives the pressure rod 3 to translate backward to move away from the area where the cloth piece is located.

[0039] The pressure rod 3 includes a vertical rod portion 13 and a transverse rod portion 14. The transverse rod portion 13 is connected to the upper end of the vertical rod and extends forward. The vertical rod portion 13 extends into the adjustment slot 8 and can move forward and backward along the adjustment slot 8. The pressing portion 5 is arranged on the transverse rod 13; the vertical rod 14 is installed on an adjusting block 15 and can be adjusted up and down relative to the adjusting block 15 (for example, a vertical plane portion 26 is provided on one side of the lower end of the vertical rod 14, and a vertical mounting hole 27 and a transverse hole 28 that transversely passes through the vertical mounting hole 27 are provided on the adjusting block 15. The lower end of the vertical rod 14 extends into the vertical mounting hole 27, and a locking screw is passed through the transverse hole 28. The inner end of the locking screw is pressed against the vertical plane portion 26. When the height needs to be adjusted, the locking screw is loosened, and then the pressure rod 3 is raised and lowered. After it is in place, the locking screw is tightened to lock the position.), the adjusting block 15 is installed on an adjusting base 16 in an adjustable position along the front-to-back direction, and the front-to-back translation driving unit 6 is connected to the adjusting base 16 to drive the adjusting base 16 to translate back and forth. The cylindrical rod body structure is adopted, and the pressing part 5 is a circular arc surface convexly facing downward, which is conducive to smoothly placing the cloth piece under the pressing rod 3. After placing the cloth piece, it is also very convenient to adjust the position of the cloth piece left or right. The circular arc surface plays a guiding role. Moreover, when pressing down, the circular arc surface contacts the cloth piece, and the pressing down action is smooth, which is conducive to local deformation of the cloth piece. In addition, an inclined surface 17 is provided at the bottom of the front end of the transverse rod part 14. The inclined surface 17 extends obliquely downward from the front to the back. For the cloth piece placement groove 10, it is equivalent to forming an entry 18 that expands forward, which is conducive to the placement of the cloth piece.

[0040] Next, a pocket sewing machine is provided, which includes a sewing machine body, on which a downward pressure positioning device 600 is provided, and the downward pressure positioning device 600 is the downward pressure positioning device described above. The sewing machine body includes a workbench assembly 100, a folding device 200, a sewing device 300, and a material receiving device 400, and a gasket punching and conveying device 500 is provided on the side of the folding device 200. The downward pressure positioning device 600 is located below the folding device 200. Put the cloth piece on the sewing machine workbench 1, and when putting the cloth piece in, the rear end of the cloth piece is put into the cloth piece insertion groove 10 from front to back to obtain pre-positioning. When the light is aligned later, the user can move the cloth piece according to the light marking line on the sewing workbench 1 to achieve alignment.

[0041] In the case where a downward pressure positioning device 600 is required, it is only necessary to open an avoidance groove 22 at the corresponding position of the sewing machine workbench 11, and then install the downward pressure positioning device 600 correspondingly under the workbench. Therefore, installation and application are very convenient, and there is no need to make too many changes to the sewing machine body. Therefore, it is also suitable for modifying and upgrading the sewing machine to increase the function of the downward pressure positioning device.

[0042] like Figure 8 As shown, it shows the structure of the downward pressure positioning device of Example 2, which is basically the same as the technical concept and structure of Example 1, and the main difference is that in Example 2, the front and rear translation drive unit 6 drives the lifting drive unit 4, the movable carrier plate 7 and the pressure rod 3 to translate forward and backward together.

[0043] like Fig. 9 and Fig.10 As shown, it shows the structure of the downward pressure positioning device of Example 3, which is basically the same as the technical concept and structure of Example 1, and the main difference is that in Example 3, the front-to-back translation drive unit 6 drives the lifting drive unit 4, the movable carrier plate 7 and the pressure rod 3 to translate forward and backward together, and the pressure rod 3 is also connected to the lifting cylinder 29, and the lifting cylinder 29 drives the pressure rod 3 to rise relative to the movable carrier plate 7, so that: the distance between the pressing part 5 and the top of the movable carrier plate 7 is increased to form the cloth piece into the groove, so that after the pressure rod 3 rises, there is enough distance to facilitate the placement of the cloth piece. After the cloth piece is placed, the lifting cylinder 29 retracts and the pressure rod 3 descends, so that the distance between the pressing part 5 and the top of the movable carrier plate 7 becomes smaller, which meets the various requirements of positioning the cloth piece in the groove and being able to adjust the position of the cloth piece by movable translation.

[0044] It should be noted that the length of the transverse rod 14 of the pressure rod 3 can be flexibly designed. For example, a relatively short transverse rod 14 is mainly suitable for the case where the distance between the rear end of the cloth piece and the bag opening is short, while for the case where the distance between the rear end of the cloth piece and the bag opening is long, a transverse rod 14 with a longer design is required, and the stroke of the front-to-back translation drive unit 6 is also increased accordingly. For example, the first embodiment shows a shorter transverse rod 14, while the second and third embodiments show a longer transverse rod 14. Of course, in addition to the length design of the transverse rod 14, other technical features can be interchanged or combined between different embodiments as needed to form the actual required implementation device structure. In order to avoid redundancy, they are not listed one by one in this article.

[0045] The design focus of the utility model is that it mainly uses the arrangement of a pressure rod, a movable carrier plate and a lifting drive unit, and utilizes the cloth piece placement groove formed between the pressing part and the top of the movable carrier plate, so that the cloth piece can move horizontally in the cloth piece placement groove; the lifting drive unit is connected to the movable carrier plate to drive the movable carrier plate and the pressure rod to move up and down at the avoidance groove, so that the pressing part presses the cloth piece placed on the sewing machine workbench facing the avoidance groove area to deform downward. In this way, the sinking deformation amount of the cloth piece is cleverly controlled directly in the cloth piece discharge area on the sewing machine workbench, and the cloth piece after placement can be adjusted horizontally for easy alignment, and its structure is simpler and more controllable.

[0046] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A downward-pressing positioning device, characterized in that: It corresponds to the sewing machine workbench, and the sewing machine workbench is provided with an escape groove that runs through from top to bottom; The downward pressure positioning device includes a pressure rod, a movable carrier plate and a lifting drive unit; the movable carrier plate is arranged corresponding to the avoidance groove, the pressure rod is installed on the movable carrier plate, the pressure rod has a downwardly arranged pressing portion, the pressing portion is located above the movable carrier plate, and a cloth piece placement groove is formed between the pressing portion and the top of the movable carrier plate, so that the cloth piece can move horizontally in the cloth piece placement groove; the lifting drive unit is connected to the movable carrier plate to drive the movable carrier plate and the pressure rod to move up and down at the avoidance groove, so that the pressing portion presses the cloth piece placed on the sewing machine workbench facing the avoidance groove downward.

2. The downward-pressing positioning device according to claim 1, characterized in that: The pressure rod is connected to a front-and-rear translation driving unit, and the front-and-rear translation driving unit drives the pressure rod to translate forward and backward.

3. The downward-pressing positioning device according to claim 2, characterized in that: The lifting drive unit drives the front-rear translation drive unit, the movable carrier plate and the pressure rod to move up and down together; Alternatively, the front-rear translation driving unit drives the lifting driving unit, the movable carrier plate and the pressure rod to translate back and forth together.

4. The downward-pressing positioning device according to claim 1, characterized in that: The movable carrier plate is arranged to extend forward and backward, and an adjustment slot extending forward and backward is arranged on the movable carrier plate. The pressure rod extends into the adjustment slot and can move forward and backward translationally along the adjustment slot.

5. The downward-pressing positioning device according to claim 1, characterized in that: The installation position of the pressing rod on the movable carrier plate is adjustable to adjust the height of the pressing portion above the movable carrier plate, thereby adjusting the slot height of the cloth piece into the slot.

6. The downward-pressing positioning device according to claim 1 or 5, characterized in that: The pressing rod is also connected to a lifting cylinder, and the lifting cylinder drives the pressing rod to rise relative to the movable carrier plate, so that: the distance between the pressing portion and the top of the movable carrier plate is increased to form the cloth piece placement groove.

7. The downward-pressing positioning device according to claim 3, characterized in that: The pressure rod includes a vertical rod portion and a transverse rod portion, the transverse rod portion is connected to the upper end of the vertical rod and extends forward, and the pressing portion is arranged on the transverse rod portion; the vertical rod portion is installed on an adjustment block and can be adjusted up and down relative to the adjustment block, the adjustment block is installed on an adjustment base in an adjustable position along the front and rear directions, and the front and rear translation drive unit is connected to the adjustment base to drive the adjustment base to translate back and forth.

8. The downward-pressing positioning device according to claim 1, characterized in that: The lifting drive unit is a cylinder; the movable carrier is connected to a stopper, and a stroke adjustment member is arranged at a distance below the stopper. When the cylinder is lowered into place, the stopper abuts against the stroke adjustment member; the top height of the stroke adjustment member is adjusted to change the lowering distance of the cylinder.

9. The downward-pressing positioning device according to claim 1, characterized in that: The top of the movable carrier plate is concavely provided with a cavity, and the pressing portion is located in the cavity, so that the cloth piece placement slot is lower than the top surface of the sewing machine worktable.

10. A pocket sewing machine, comprising a sewing machine body, characterized in that: The sewing machine body is provided with an automatic folding device, and a downward-pressing positioning device as claimed in any one of claims 1 to 9 is provided below the automatic folding device.

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