Novel material pressing mechanism of patch pocket machine

Abstract

The invention discloses a novel patch pocket machine pressing mechanism which is used for being matched with a workbench and a feeding mechanism and comprises a pressing assembly. The material pressing assembly comprises a mounting plate, a movable plate, a material piece pressing plate, a bag piece pressing plate, a main lifting air cylinder, a first bag piece air cylinder and a second bag piece air cylinder. The main lifting cylinder is mounted on the mounting plate, and an output shaft is connected with a movable plate capable of moving up and down; the material sheet pressing plate is U-shaped, and two ends of the material sheet pressing plate are respectively connected with two sides of the movable plate; the bag piece pressing plate is located on the inner side of the material piece pressing plate, and the two sides of the bag piece pressing plate are connected with the movable plates through connecting blocks capable of moving up and down. A sewing groove is formed between the outer side of the bag piece pressing plate and the inner side of the material piece pressing plate; the first bag piece air cylinder is installed on the movable plate, and an output shaft of the first bag piece air cylinder faces upwards and abuts against the connecting block. The second bag piece air cylinder is installed on the movable plate, and an output shaft of the second bag piece air cylinder faces downwards and abuts against the connecting block. When the pocket-shaped plate is contracted, the folding edge part of pocket cloth can be kept complete, and the situation of deformation is not prone to occurring.

Description

Technical Field

[0001] This invention relates to the field of bag-applying machine technology, specifically to a novel bag-applying machine pressing mechanism. Background Technology

[0002] A pocket attaching machine is an automated device that integrates mechanical structure and intelligent control. Its working principle varies depending on the type of technology. Furthermore, pocket attaching machines can be used for sewing pockets on clothing such as jeans, workwear, and shirts. Plain stitching and buttonhole stitching can be completed in one operation, making it suitable for sewing various back pockets of jeans, workwear pockets, and shirt pockets.

[0003] For a bag-applying machine, application publication number CN119640508A discloses an improved bag-applying machine, which specifically discloses a frame and a worktable, a folding module, a feeding module, a feeding and unfeeding module, and a sewing machine head, all mounted on the frame and cooperating with each other. The folding module includes a folding positioning seat, a folding upper and lower cylinder mounted on the frame for driving the folding positioning seat to move up and down, and a pressing assembly, a bag bottom folding assembly, two bag edge folding assemblies, and two upper bag corner folding assemblies, all mounted on the folding positioning seat and cooperating with each other. The pressing assembly includes a component that can be detachably mounted on the folding assembly via a quick-release screw. The bottom of the edge positioning seat has a pressing plate with a pressing groove on its bottom surface corresponding to the shape of the pocket fabric. The pocket bottom folding assembly includes a pocket bottom folding cylinder that is adjustable left and right and mounted on the left end of the folding positioning seat, and a pocket bottom folding piece that is adjustable up and down and connected to the output shaft of the pocket bottom folding cylinder and located below the pressing plate. Two pocket bottom folding assemblies are located on opposite sides of the middle of the folding positioning seat. Each pocket bottom folding assembly includes a pocket bottom folding cylinder that is adjustable front and back and mounted on the folding positioning seat, and an output shaft that is adjustable up and down and connected to the output shaft of the pocket bottom folding cylinder and located below the pressing plate. The bag edge folding piece; the two upper bag corner folding assemblies are respectively located on the right side of the folding positioning seat. Each upper bag corner folding assembly includes an upper bag corner folding cylinder that is adjustable back and forth and mounted on the folding positioning seat, and an upper bag corner folding piece that is adjustable up and down and connected to the output shaft of the upper bag corner folding cylinder and located below the bag pressing plate; by adjusting the positions of the bag bottom folding piece, the bag edge folding piece, and the upper bag corner folding piece, the folding module can be used to fold pocket fabrics of different sizes and thicknesses; the feeding module includes a feeding positioning seat mounted on the frame, a movable plate that can move up and down, and a feeding plate mounted on the feeding... The system includes a positioning base with a feeding cylinder for driving the movable plate to move up and down, a feeding cylinder mounted on the movable plate, and a feeding template located below the pressing plate and capable of moving left and right under the feeding cylinder. The feeding template is used to place pocket fabric so that the folding module can fold it. The feeding and unloading module is used to transport the workpiece folded by the folding module and the feeding module to the sewing machine head on the worktable for subsequent sewing. The feeding and unloading module can also be used to transport the workpiece sewn by the sewing machine head to the unloading port on the worktable for unloading.

[0004] However, the improved bag-applying machine described above still has some drawbacks. For example, after the folding module folds the pocket fabric on the feeding template (i.e., the bag-shaped plate), the folding module and the feeding module drive the folded pocket fabric downwards to the corresponding position on the trouser leg fabric, and then the folding module resets. Next, the U-shaped pressing part in the feeding module presses the fabric around the trouser leg fabric, while the outer and inner pressing blocks press the corresponding positions on the edge of the pocket fabric. Immediately afterward, the left and right feeding cylinders drive the feeding template to retract, causing it to move away from the pocket fabric. However, in this case, since the edge of the pocket fabric has been hemmed, meaning the edge of the pocket fabric has a hemmed section extending towards the center, and the fabric material is generally not too stiff, and the outer and inner pressure blocks are pressed tightly onto the pocket fabric, when the feeding template shrinks, due to the large pressing force of the outer and inner pressure blocks, the feeding template can easily push the hemmed section and cause it to deform. In other words, the hemmed section may not be able to be folded to the preset position (i.e., the hemmed section cannot remain intact), which in turn makes it impossible to accurately sew the hemmed section to the trouser leg fabric.

[0005] Therefore, improvements to existing technologies are necessary. Summary of the Invention

[0006] To address the problems existing in the prior art, the purpose of this invention is to provide a novel pressing mechanism for a bag-applying machine, which can keep the folded edge of the bag fabric intact and prevent deformation when the bag plate is shrinking.

[0007] To achieve the above objectives, the technical solution of the present invention is as follows:

[0008] A novel material pressing mechanism for a bag-applying machine, used in conjunction with a worktable and a feeding mechanism, includes a material pressing assembly. The material pressing assembly includes a mounting plate, a movable plate, a material sheet pressing plate, a bag sheet pressing plate, a main lifting cylinder, a first bag sheet cylinder, and a second bag sheet cylinder. The main lifting cylinder is mounted on the mounting plate, and its output shaft is connected to the vertically movable movable plate. The material sheet pressing plate is U-shaped, with its two ends connected to the two sides of the movable plate. The bag sheet pressing plate is located inside the material sheet pressing plate, and its two sides are connected to the movable plate via a vertically movable connecting block. A sewing groove is formed between the outer side of the bag sheet pressing plate and the inner side of the material sheet pressing plate. The first bag sheet cylinder is mounted on the movable plate, with its output shaft facing upwards and abutting against the connecting block, for pushing the connecting block to... The bag plate moves upward; the second bag cylinder is mounted on the movable plate with its output shaft facing downward and abutting the connecting block, to push the connecting block and the bag plate downward; when the material plate and the bag plate press against the shirt fabric on the workbench and the folded pocket fabric on the bag-shaped plate of the feeding mechanism respectively, the first bag cylinder pushes the connecting block to raise the bag plate a certain distance to reduce the pressing force of the bag plate on the pocket fabric; then, the bag plate retracts, and its retraction does not easily cause deformation of the folded edge of the pocket fabric; after the bag plate retracts, the second bag cylinder pushes the connecting block to lower the bag plate a certain distance so that the bag plate presses against the pocket fabric again. Through the above arrangement, the folded edge of the pocket fabric is less likely to deform when the bag plate retracts.

[0009] Furthermore, the thrust of the output shaft of the first bag-piece cylinder is greater than the thrust of the output shaft of the second bag-piece cylinder.

[0010] Furthermore, when the second bag-piece cylinder is inflated and pushes the bag-piece pressure plate downwards, the first bag-piece cylinder is deflated, allowing the second bag-piece cylinder to smoothly push the bag-piece pressure plate downwards; conversely, when the first bag-piece cylinder is inflated and pushes the bag-piece pressure plate upwards, the second bag-piece cylinder is also inflated. This arrangement ensures effective coordination between the first and second bag-piece cylinders, preventing any obstruction between them.

[0011] Furthermore, two second bag-piece cylinders are provided; the output shafts of the two second bag-piece cylinders are respectively engaged with both sides of the connecting block; the first bag-piece cylinder is located between the two second bag-piece cylinders. This arrangement ensures the stability of the vertical movement of the connecting block and the bag-piece pressure plate.

[0012] Furthermore, two first slide rail assemblies are provided between the connecting block and the movable plate; each first slide rail assembly includes a first slide rail and a first slider; the two first slide rails are respectively connected to both sides of the movable plate, and the two first sliders are respectively connected to the two first slide rails and both sides of the connecting block. By providing the first slide rails and first sliders, the stability of the vertical movement of the connecting block and the bag sheet pressure plate can also be ensured.

[0013] Furthermore, two second slide rail assemblies are provided between the mounting plate and the movable plate; each second slide rail assembly includes a second slide rail and a second slider; the two second slide rails are respectively connected to both sides of the movable plate, and the two second sliders are respectively connected to the two second slide rails and both sides of the mounting plate. By providing the second slide rails and the second sliders, the stability of the vertical movement of the movable plate can be ensured.

[0014] Furthermore, the connecting block includes a main body and a top plate; the two sides of the main body are respectively connected to the two sides of the bag-piece pressing plate; the output shaft of the second bag-piece cylinder abuts against the main body; the top plate is inverted "L" shape; the vertical end of the top plate is mounted on the main body, and the horizontal end of the top plate extends out of the main body and abuts against the output shaft of the first bag-piece cylinder. This configuration facilitates the cooperation between the first bag-piece cylinder and the top plate, while the second bag-piece cylinder can cooperate with the main body to push the connecting block upwards or downwards.

[0015] Furthermore, a vertically extending strip-shaped adjustment hole is provided on the vertical end of the top plate; a threaded hole corresponding to the strip-shaped adjustment hole is provided on the main body; the strip-shaped adjustment hole and the threaded hole are connected by an adjusting bolt. By providing the strip-shaped adjustment hole, the height position of the top plate can be adjusted to accommodate fabrics of different thicknesses.

[0016] Furthermore, two main lifting cylinders are provided; the two main lifting cylinders are respectively mounted on the mounting plate; the output shafts of the two main lifting cylinders are respectively connected to both sides of the movable plate. This arrangement ensures the stability of the movable plate during its vertical movement.

[0017] Furthermore, it also includes a left and right drive assembly and a front and rear drive assembly; the left and right drive assembly is fixedly installed; the front and rear drive assembly is mounted on the movable slider of the left and right drive assembly; the mounting plate is mounted on the movable slider of the front and rear drive assembly.

[0018] The beneficial effects of this invention are as follows:

[0019] This invention provides a first bag-piece cylinder and a second bag-piece cylinder in the pressing assembly, which respectively cooperate with the connecting block and the bag-piece pressing plate. This allows the bag-piece fabric on the bag-shaped plate of the feeding module to be folded up. When the bag-shaped plate wants to shrink, the first bag-piece cylinder can push the bag-piece pressing plate up a certain distance to loosen the bag-piece fabric. This makes it less likely for the folded edge of the bag-piece fabric to deform when the bag-shaped plate shrinks.

[0020] Therefore, the design of this invention can prevent the pocket fabric from being pressed too tightly by the pocket plate when the pocket plate shrinks, which would cause the pocket plate to push the folded edge and deform the folded edge. In other words, under this design, the folded edge can maintain its own folded edge position, so that the subsequent folded edge and shirt fabric can be accurately sewn together. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0022] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0023] Figure 3 This is a schematic diagram of the overall structure of the present invention. Figure 3 ;

[0024] Figure 4 This is a schematic diagram of the connecting block after the invention explodes;

[0025] Figure 5 This is a schematic diagram of the present invention in use.

[0026] Figure Labels

[0027] 1. Mounting plate; 2. Movable plate; 3. Material sheet pressure plate; 4. Bag sheet pressure plate; 5. Main lifting cylinder; 6. First bag sheet cylinder; 7. Second bag sheet cylinder; 8. Connecting block; 81. Main body; 82. Top plate; 83. Strip-shaped adjustment hole; 84. Threaded hole; 9. Sewing groove; 10. First slide rail; 11. First slider; 12. Second slide rail; 13. Second slider; 14. Left and right drive assembly; 15. Front and rear drive assembly; 16. Bag-shaped plate; 17. Worktable. Detailed Implementation

[0028] The invention will be further described below with reference to the accompanying drawings and specific embodiments. The following description is merely exemplary and does not limit the scope of protection of the invention.

[0029] like Figure 1-Figure 5As shown, a novel bag-applying machine pressing mechanism is used to cooperate with a worktable and a feeding mechanism. It includes a pressing assembly; the pressing assembly includes a mounting plate 1, a movable plate 2, a material pressing plate 3, a bag pressing plate 4, a main lifting cylinder 5, a first bag pressing cylinder 6, and a second bag pressing cylinder 7.

[0030] The main lifting cylinder 5 is mounted on the mounting plate 1 and its output shaft is connected to the movable plate 2, which can move up and down. The material sheet pressure plate 3 is U-shaped and its two ends are respectively connected to the two sides of the movable plate 2. The bag sheet pressure plate 4 is located inside the material sheet pressure plate 3 and the two sides of the bag sheet pressure plate 4 are connected to the movable plate 2 through a vertically movable connecting block 8. Specifically, the two sides of the bag sheet pressure plate 4 are respectively connected to the connecting block 8, and the connecting block 8 is connected to the movable plate 2, so that when the movable plate 2 moves up and down, the bag sheet pressure plate 4 can be moved up and down synchronously through the connecting block 8. A sewing groove 9 is formed between the outer side of the bag sheet pressure plate 4 and the inner side of the material sheet pressure plate 3.

[0031] The first bag-piece cylinder 6 is mounted on the movable plate 2 with its output shaft facing upward and abutting against the connecting block 8, so as to push the connecting block 8 and the bag-piece pressing plate 4 to move upward; the second bag-piece cylinder 7 is mounted on the movable plate 2 with its output shaft facing downward and abutting against the connecting block 8, so as to push the connecting block 8 and the bag-piece pressing plate 4 to move downward.

[0032] When the sheet pressure plate 3 and the bag pressure plate 4 press the shirt fabric on the worktable 17 and the folded pocket fabric on the bag-shaped plate 16 of the feeding mechanism respectively, the first bag cylinder 6 pushes the connecting block 8 to drive the bag pressure plate 4 to rise a certain distance, so as to reduce the pressing force of the bag pressure plate 4 on the pocket fabric; then, the bag-shaped plate 16 shrinks, and its shrinkage does not easily cause deformation of the folded part of the pocket fabric; after the bag plate 16 shrinks, the second bag cylinder 7 pushes the connecting block 8 to drive the bag pressure plate 4 to fall a certain distance, so that the bag pressure plate 4 presses the pocket fabric again.

[0033] In summary, this invention, by incorporating a first bag-piece cylinder 6 and a second bag-piece cylinder 7 in the pressing assembly to respectively cooperate with the connecting block 8 and the bag-piece pressing plate 4, allows the first bag-piece cylinder 6 to push the bag-piece pressing plate 4 upwards a certain distance when the bag-shaped plate 16 on the feeding module wants to shrink after the pocket fabric on the bag-shaped plate 16 has been folded, thus loosening the pocket fabric. This prevents deformation of the folded edge on the side of the pocket fabric during shrinkage. Therefore, the design of this invention prevents the pocket fabric from being pressed too tightly by the bag-piece pressing plate 4 during shrinkage, which would cause the bag-shaped plate 16 to push the folded edge and deform it. In other words, under this design, the folded edge can maintain its proper position, allowing for accurate sewing between the folded edge and the shirt fabric.

[0034] In this embodiment, the thrust of the output shaft of the first bag cylinder 6 is greater than the thrust of the output shaft of the second bag cylinder 7.

[0035] Specifically, when the second bag cylinder 7 is in the inflated state and pushes the bag pressure plate 4 down, the first bag cylinder 6 is in the deflated state, so that the second bag cylinder 7 can smoothly push the bag pressure plate 4 down. That is, the first bag cylinder 6 in the deflated state will not hinder the normal use of the second bag cylinder 7. When the first bag cylinder 6 is in the inflated state and pushes the bag pressure plate 4 up, the second bag cylinder 7 is also in the inflated state. At this time, since the thrust of the output shaft of the first bag cylinder 6 is greater than the thrust of the output shaft of the second bag cylinder 7, the output shaft of the first bag cylinder 6 can be effectively extended and will not be obstructed by the output shaft of the second bag cylinder 7. Furthermore, when the output shaft of the first bag cylinder 6 pushes the bag pressure plate 4 up, it will cause the output shaft of the second bag cylinder 7 to retract by a certain distance. More specifically, the second bag-of-tablet cylinder 7 is always in an inflated state, while the first bag-of-tablet cylinder 6 needs to be in a corresponding inflated or deflated state according to the movement of the second bag-of-tablet cylinder 7. Therefore, this arrangement ensures effective coordination between the first bag-of-tablet cylinder 6 and the second bag-of-tablet cylinder 7, preventing any obstruction between them.

[0036] like Figures 1-4 As shown, there are two second bag-piece cylinders 7; the output shafts of the two second bag-piece cylinders 7 are respectively engaged with the two sides of the connecting block 8; in addition, the first bag-piece cylinder 6 is located between the two second bag-piece cylinders 7. The above arrangement can ensure the stability of the vertical movement of the connecting block 8 and the bag-piece pressure plate 4.

[0037] like Figures 1-4 As shown, two first slide rail assemblies are provided between the connecting block 8 and the movable plate 2; each first slide rail assembly includes a first slide rail 10 and a first slider 11; the two first slide rails 10 are respectively connected to both sides of the movable plate 2, and the two first sliders 11 are respectively connected to the two first slide rails 10 and both sides of the connecting block 8. By setting the first slide rails 10 and the first sliders 11, the stability of the vertical movement of the connecting block 8 and the bag sheet pressure plate 4 can also be ensured.

[0038] like Figures 1-4 As shown, two second slide rail assemblies are provided between the mounting plate 1 and the movable plate 2; each second slide rail assembly includes a second slide rail 12 and a second slider 13; the two second slide rails 12 are respectively connected to both sides of the movable plate 2, and the two second sliders 13 are respectively connected to the two second slide rails 12 and both sides of the mounting plate 1. By setting the second slide rails 12 and the second sliders 13, the stability of the vertical movement of the movable plate 2 can be ensured.

[0039] like Figures 1-4As shown, the connecting block 8 includes a main body 81 and a top plate 82; the two sides of the main body 81 are respectively connected to the two sides of the bag sheet pressing plate 4; the output shaft of the second bag sheet cylinder 7 abuts against the main body 81; the top plate 82 is inverted "L" shape; the vertical end of the top plate 82 is mounted on the main body 81, and the horizontal end of the top plate 82 extends out of the main body 81 and is used to abut against the output shaft of the first bag sheet cylinder 6. Specifically, two first sliders 11 are respectively connected to the two sides of the main body 81. Therefore, the above arrangement facilitates the cooperation between the first bag sheet cylinder 6 and the top plate 82, while the second bag sheet cylinder 7 can be used to cooperate with the main body 81 to push the connecting block 8 upward or downward. Because the different height settings of the top plate 82 will cause the top plate 82 to move at different heights when the first bag sheet cylinder 6 pushes the top plate 82 upward, that is, it will simultaneously cause the bag sheet pressing plate 4 to rise to different heights, thereby making the pressing force of the bag sheet pressing plate 4 on the pocket fabric different. Therefore, by adjusting the position of the top plate 82, the bag plate pressure plate 4 can exert different pressures on the pocket fabric after rising. In addition, by adjusting the position of the top plate 82, the bag plate pressure plate 4 can also be adapted to pocket fabrics of different thicknesses, making it highly practical.

[0040] like Figure 4 As shown, a vertically extending strip-shaped adjustment hole 83 is provided on the vertical end of the top plate 82; a threaded hole 84 corresponding to the strip-shaped adjustment hole 83 is provided on the main body 81; the strip-shaped adjustment hole 83 and the threaded hole 84 are connected by an adjusting bolt (not shown in the figure). By providing the strip-shaped adjustment hole 83, the height position of the top plate 82 can be adjusted to accommodate fabrics of different thicknesses, that is, the above design can broaden the applicability of the present invention.

[0041] like Figure 1 As shown, in this embodiment, two main lifting cylinders 5 are provided; the two main lifting cylinders 5 are respectively mounted on the mounting plate 1; the output shafts of the two main lifting cylinders 5 are respectively connected to both sides of the movable plate 2. The above arrangement can ensure the stability of the movable plate 2 when it moves up and down.

[0042] like Figure 5 As shown, it also includes a left-right drive assembly 14 and a front-back drive assembly 15; the left-right drive assembly 14 is fixedly installed; the front-back drive assembly 15 is mounted on the movable slider of the left-right drive assembly 14; the mounting plate 1 is mounted on the movable slider of the front-back drive assembly 15. This configuration allows for convenient driving of the pressing assembly to move left-right and front-back, but since the structure and function of the left-right drive assembly 14 and the front-back drive assembly 15 are existing technologies, they will not be described in detail here.

[0043] The specific operating principle of this invention is described below to help you understand it:

[0044] First, the invention is fixed to a base (not shown in the figure), which also includes a worktable 17, a feeding mechanism, and a folding mechanism. In use, the shirt fabric is first placed on the worktable 17, and the pocket fabric is placed on the pocket-shaped plate 16 of the feeding mechanism. After the pocket fabric is folded by the folding mechanism (not shown in the figure) above it, the folding mechanism and the pocket-shaped plate 16 descend to the surface of the shirt fabric, and then the folding mechanism resets. Then, the fabric plate 3 and the pocket plate 4 are driven by the left-right drive assembly 14 and the front-back drive assembly 15, and then pressed onto the shirt fabric and pocket fabric respectively by the main lifting cylinder 5. Next, the first pocket cylinder 6 pushes the pocket plate 4 upward a certain distance, causing the pocket plate 4 to release the pocket fabric, meaning the pocket plate 4 will no longer press tightly onto the pocket fabric. Next, the pocket plate 16 retracts, thus preventing deformation of the folded edge of the pocket fabric (i.e., the folded edge remains intact). Then, the second pocket plate cylinder 7 drives the pocket plate pressure plate 4 downward a certain distance, so that the pocket plate pressure plate 4 presses firmly onto the pocket fabric again. Subsequently, the left and right drive assembly 14 and the front and rear drive assembly 15 are used to drive the pocket fabric and shirt fabric to the position of the sewing machine head (not shown in the figure) for sewing.

[0045] This invention is not limited to the above-described embodiments. If any modifications or variations to this invention do not depart from the spirit and scope of this invention, and if such modifications and variations fall within the scope of the claims and equivalent technologies of this invention, then this invention also intends to include such modifications and variations.

Claims

1. A novel material pressing mechanism for a bag-applying machine, used in conjunction with a worktable and a feeding mechanism, characterized in that: It includes a pressing assembly; the pressing assembly includes a mounting plate, a movable plate, a sheet pressing plate, a bag pressing plate, a main lifting cylinder, a first bag pressing cylinder, and a second bag pressing cylinder; The main lifting cylinder is mounted on the mounting plate and its output shaft is connected to the movable plate that can move up and down; the material sheet pressing plate is U-shaped and its two ends are respectively connected to the two sides of the movable plate; the bag sheet pressing plate is located inside the material sheet pressing plate and the two sides of the bag sheet pressing plate are connected to the movable plate through a connecting block that can move up and down; a sewing groove is formed between the outer side of the bag sheet pressing plate and the inner side of the material sheet pressing plate; The first bag-piece cylinder is mounted on the movable plate with its output shaft facing upward and abutting against the connecting block, for pushing the connecting block and the bag-piece pressing plate upward; the second bag-piece cylinder is mounted on the movable plate with its output shaft facing downward and abutting against the connecting block, for pushing the connecting block and the bag-piece pressing plate downward. When the sheet pressure plate and the bag pressure plate respectively press the shirt fabric on the workbench and the folded pocket fabric on the bag-shaped plate of the feeding mechanism, the first bag cylinder pushes the connecting block to raise the bag pressure plate a certain distance to reduce the pressure of the bag pressure plate on the pocket fabric; then, the bag-shaped plate retracts, and its retraction does not easily cause deformation of the folded edge of the pocket fabric; after the bag plate retracts, the second bag cylinder pushes the connecting block to lower the bag pressure plate a certain distance so that the bag pressure plate re-presses onto the pocket fabric.

2. The novel bag-applying machine pressing mechanism according to claim 1, characterized in that: The thrust of the output shaft of the first bag-piece cylinder is greater than the thrust of the output shaft of the second bag-piece cylinder.

3. The novel bag-applying machine pressing mechanism according to claim 2, characterized in that: When the second bag cylinder is in the inflated state and pushes the bag plate down, the first bag cylinder is in the deflated state, so that the second bag cylinder can smoothly push the bag plate down; When the first bag cylinder is inflated and pushes the bag plate upward, the second bag cylinder is also inflated.

4. The novel bag-applying machine pressing mechanism according to claim 1, characterized in that: There are two second bag-piece cylinders; the output shafts of the two second bag-piece cylinders are respectively engaged with the two sides of the connecting block; the first bag-piece cylinder is located between the two second bag-piece cylinders.

5. The novel bag-applying machine pressing mechanism according to claim 1, characterized in that: Two first slide rail assemblies are provided between the connecting block and the movable plate; each first slide rail assembly includes a first slide rail and a first slider; the two first slide rails are respectively connected to both sides of the movable plate, and the two first sliders are respectively connected to the two first slide rails and both sides of the connecting block.

6. The novel bag-applying machine pressing mechanism according to claim 1, characterized in that: Two second slide rail assemblies are provided between the mounting plate and the movable plate; each second slide rail assembly includes a second slide rail and a second slider; the two second slide rails are respectively connected to both sides of the movable plate, and the two second sliders are respectively connected to the two second slide rails and both sides of the mounting plate.

7. The novel bag-applying machine pressing mechanism according to claim 1, characterized in that: The connecting block includes a main body and a top plate; the two sides of the main body are respectively connected to the two sides of the bag sheet pressing plate; the output shaft of the second bag sheet cylinder abuts against the main body; the top plate is inverted "L" shape; the vertical end of the top plate is mounted on the main body, and the horizontal end of the top plate extends out of the main body and is used to abut against the output shaft of the first bag sheet cylinder.

8. The novel bag-applying machine pressing mechanism according to claim 7, characterized in that: A strip-shaped adjustment hole extending vertically is provided on the vertical end of the top plate; a threaded hole corresponding to the strip-shaped adjustment hole is provided on the main body; the strip-shaped adjustment hole and the threaded hole are connected by an adjustment bolt.

9. The novel bag-applying machine pressing mechanism according to claim 1, characterized in that: There are two main lifting cylinders; the two main lifting cylinders are respectively mounted on the mounting plate; the output shafts of the two main lifting cylinders are respectively connected to both sides of the movable plate.

10. The novel bag-applying machine pressing mechanism according to claim 1, characterized in that: It also includes left and right drive components and front and rear drive components; the left and right drive components are fixedly installed; the front and rear drive components are mounted on the movable sliders of the left and right drive components; the mounting plate is mounted on the movable sliders of the front and rear drive components.

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