Secondary push-down type gasket punching device and sewing machine

Abstract

The utility model discloses a secondary push-down type gasket punching device and a sewing machine, the secondary push-down type gasket punching device comprises a punch, the punch is driven by a first cylinder to move up and down, the first cylinder comprises a first cylinder body and a first piston rod extending up and down, the first cylinder body is arranged on a punching seat, and the first piston rod is arranged on the first cylinder body. A vertically-extending punching hole and a transversely-extending strip groove are formed in the punching base, the punching hole downwards penetrates through the strip groove and reaches the bottom end of the punching base, and the strip groove is located above the bottom end of the punching base so as to keep a blanking distance. The punch is driven by the first piston rod to move up and down in the punching hole and downwards extend into the strip groove; the push pin is driven by a second air cylinder to move up and down; the second air cylinder comprises a second cylinder body and a second piston rod extending up and down, and the second piston rod drives the push needle to penetrate through the first cylinder body, the first piston rod and the punch in an up-down movable mode and can stretch out of the bottom end of the punch; and the material receiving plate is arranged below the punching seat. Reliability of punching and blanking is ensured.

Description

Technical Field

[0001] The utility model relates to the technology of sewing machine field, in particular to a secondary push-down gasket punching device and a sewing machine, which are used for processing clothes and the like. Background Art

[0002] In the early days, the pads on the inside of trouser pockets / clothing pockets were placed manually, which was inefficient and prone to human errors. Later, automatic pad delivery devices appeared in the industry, which was a great improvement over the manual operation method.

[0003] For example, CN 110359187 A discloses a pad feeding device of a fully automatic cold folding bagging machine, which includes a discharge tray assembly, a conveying assembly, a shearing assembly, a feeding assembly and a connecting seat assembly. When working, the pad is unwound first, so that the pad belt comes out from the active roller and the driven roller and passes through between the movable cutter and the fixed cutter of the shearing assembly to the bottom of the pressing plate of the pressing assembly; then, the piston rod of the cylinder of the feeding lifting drive device of the feeding assembly retracts downward, so that the lifting seat descends, thereby causing the pad adsorption panel to descend until its upper surface is lower than the blade of the fixed cutter of the shearing assembly; then, the piston rod of the cylinder of the feeding front and rear drive device extends backward, so that the rear side of the pad adsorption panel of the suction box assembly is against the front side of the guide part of the movable cutter, and the corresponding part of the pad adsorption panel of the suction box assembly is located below the pressing plate of the pressing assembly, and the pad belt is located between the pad adsorption panel and the pressing plate; the pressing drive cylinder of the pressing assembly The piston rod extends downward to drive the pressure plate to press and fix the pad belt on the pad adsorption panel; then, the piston rod of the driving cylinder of the shearing assembly extends downward to drive the movable cutter to move downward, thereby cutting the pad belt together with the fixed cutter, and the two cut pads are located on the pad adsorption panel; then, the suction fan sucks air to form a negative pressure at the corresponding part of the pad on the pad adsorption panel, so that the pad is adsorbed and fixed on the pad adsorption panel; then the piston rod of the clamping driving cylinder of the clamping assembly retracts upward to lift the pressure plate; finally, the piston rod of the cylinder of the front and rear driving device of the feeding retracts forward, and the piston rod of the cylinder of the feeding lifting driving device extends upward, so that the pad adsorption panel is located in the pad feeding hole of the worktable, and the upper surface of the pad adsorption panel is flush with the upper surface of the worktable, thereby sending the two pads to the height position of the upper surface of the worktable, completing the feeding of the pad.

[0004] However, the liner belt is cut by shearing, and the overall structure is complex. In addition, the overall action steps of the liner feeding device are more, which is not conducive to further improving the production efficiency. 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 provide a two-time push-down type gasket punching device and a sewing machine for the defects of the prior art, which utilizes a punch and a push pin. The punch punches and forms the gasket once, and the push pin pushes down twice to ensure reliable punching and blanking. The structure is simple and compact, and the action is also simplified.

[0006] Another purpose is to provide a secondary push-down gasket punching and cutting device and a sewing machine, which further combines a lateral conveying unit to drive the lifting unit and the material receiving plate to move laterally, and directly conveys the gasket from under the punch to under the folding station. The entire punching and conveying action is greatly simplified, which is conducive to improving efficiency, and the structure is more compact, which is convenient for installation and application on the sewing machine.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A secondary push-down gasket punching device, comprising

[0009] A punch, which is driven by a first cylinder to move up and down; the first cylinder includes a first cylinder body and a first piston rod extending up and down, the first cylinder body is installed on a punching seat, a vertically extending punching hole and a transversely extending strip groove are arranged in the punching seat, the punching hole penetrates downward through the strip groove and penetrates to the bottom end of the punching seat, the strip groove is located above the bottom end of the punching seat to maintain a blanking distance; the punch is driven by the first piston rod to be able to move up and down in the punching hole and extend downward into the strip groove;

[0010] A push pin is driven by a second cylinder to move up and down; the second cylinder includes a second cylinder body and a second piston rod extending up and down, and the second piston rod drives the push pin to move up and down through the first cylinder body, the first piston rod and the punch, and can extend out of the bottom end of the punch;

[0011] A receiving plate is arranged below the punching seat to receive the gasket.

[0012] As a preferred embodiment, the punch is directly connected to the bottom end of the first piston rod, a through hole is provided at the top of the first cylinder body, and the top of the first piston rod is connected to an extension portion extending directly upward, the extension portion passes upward through the through hole and extends above the first cylinder body, the top of the extension portion is located below the bottom end of the second piston rod, and the push pin is vertically extended, and the push pin passes downward in sequence through the extension portion, the first piston rod and the punch.

[0013] As a preferred solution, the first cylinder body is connected to a first bracket, the second cylinder body is connected to a second bracket, the second bracket is mounted on the first bracket, and the mounting position of the second bracket on the first mounting bracket can be adjusted up and down and / or left and right.

[0014] As a preferred solution, the receiving plate is connected to a lifting unit to control the up and down movement of the receiving plate.

[0015] As a preferred solution, the receiving plate is a vacuum adsorption carrier plate, and its top surface is a vacuum adsorption surface.

[0016] As a preferred solution, the lifting unit is connected to a transverse conveying unit, and the transverse conveying unit drives the lifting unit and the receiving plate to move transversely to convey the gasket from under the punch to under the folding station.

[0017] As a preferred embodiment, the lateral conveying unit includes a third cylinder and a conveying base, the third cylinder is installed on the conveying base, a first guide rail extending laterally is provided on the conveying base, the telescopic rod of the third cylinder is driven and connected to a slide seat, the slide seat is adapted to the first guide rail so as to be able to slide laterally along the first guide rail, and the lifting unit is installed on the slide seat.

[0018] As a preferred solution, a second guide rail extending vertically is provided on the slide seat, a sliding block is connected to the material receiving plate, and the sliding block is adapted to the second guide rail so as to be able to slide vertically along the second guide rail.

[0019] As a preferred solution, the conveying base frame includes a first base frame and a second base frame that are detachably split and laterally assembled, the first guide rail includes a left-section guide rail and a right-section guide rail, the left-section guide rail is arranged on the first base frame, the right end of the left-section guide rail is spaced apart from the right end of the first base frame, the right-section guide rail is arranged on the second base frame, the left end of the right-section guide rail extends beyond the left end of the second base frame, so that: the second base frame is assembled to the right end of the first base frame, the left end of the right-section guide rail extends to the first base frame to be locked and fixed in position and spliced ​​with the right end of the left-section guide rail.

[0020] A sewing machine comprises a sewing machine body, on which is arranged a secondary push-down gasket punching device as described in any of the above items.

[0021] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical scheme that it mainly uses the arrangement of the punch, the push pin and the material receiving plate to form the gasket by punching once and the push pin pushes down twice to ensure reliable punching and blanking. The structure is simple and compact, and the action is also simplified.

[0022] Furthermore, the lateral conveying unit is combined to drive the lifting unit and the material receiving plate to move laterally, and the gasket is directly translated from under the punch to under the folding station. The entire punching and conveying action is greatly simplified, which is conducive to improving efficiency, and the structure is more compact, which is convenient for installation and application on the sewing machine.

[0023] 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

[0024] Figure 1 This is a three-dimensional assembly diagram of a secondary push-down gasket punching device according to an embodiment of the utility model;

[0025] Figure 2 It is a cross-sectional view of a secondary push-down gasket punching device according to an embodiment of the utility model.

[0026] Explanation of the symbols in the accompanying drawings: punch 1, push pin 2, receiving plate 3, first cylinder 4, first cylinder body 5, first piston rod 6, punching seat 7, punching hole 8, strip groove 9, guide bending piece 10, reel 11, through hole 12, extension part 13, second cylinder 14, second cylinder body 15, second piston rod 16, lifting unit 17, vacuum adsorption surface 18, third cylinder 19, conveying base 20, first guide rail 21, slide seat 22, first bracket 23, second bracket 24. DETAILED DESCRIPTION

[0027] Please refer to Figure 1 to Figure 2 As shown, it shows the specific structure of the embodiment of the utility model. In the description of the utility model, it should be noted that the terms "upper", "lower", "left", "right" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0028] A secondary push-down gasket punching device comprises a punch 1, a push pin 2 and a material receiving plate 3.

[0029] The punch 1 is driven by the first cylinder 4 to move up and down; the first cylinder 4 includes a first cylinder body 5 and a first piston rod 6 extending up and down, the first cylinder body 5 is installed on the punching seat 7, and the punching seat 7 is provided with a vertically extending punching hole 8 and a transversely extending strip groove 9, the punching hole 8 passes through the strip groove 9 downward and passes through the bottom end of the punching seat 7, and the strip groove 9 is located above the bottom end of the punching seat 7 to maintain a blanking distance; the punch 1 is driven by the first piston rod 6 to be able to move up and down in the punching hole 8 and extend downward into the strip groove 9. A guide bending piece 10 is installed at the front end of the punching seat 7, and the guide bending piece 10 is located at the front upper position of the strip groove 92 to limit and guide the upper side of the strip. The strip is usually loaded on the equipment in the form of a coil and automatically unrolled and transported. The strip passes through the strip slot 9. For example, the strip is loaded on the reel 11, and the active roller is driven by a motor to rotate. The strip passes between the active roller and the driven roller. The active roller and the driven roller are arranged in cooperation so that when the active roller rotates, the strip can be driven to gradually move. Of course, this automatic unwinding technology is a mature existing technology and will not be described in detail in this article to avoid redundancy. In this embodiment, the punch 1 is directly connected to the bottom end of the first piston rod 6, and the top of the first cylinder body 5 is provided with a through hole 12. The top of the first piston rod 6 is connected to an extension portion 13 extending upwardly, and the extension portion 13 passes through the through hole 12 in a sealed manner upward and extends above the first cylinder body 5.

[0030] The push pin 2 is vertically extended and driven by the second cylinder 14 to move up and down; the second cylinder 14 includes a second cylinder body 15 and a second piston rod 16 extending up and down, and the second piston rod 16 drives the push pin 2 to move up and down through the first cylinder body 5, the first piston rod 6 and the punch 1, and can extend out of the bottom end of the punch 1; the top of the extension 13 is located below the bottom end of the second piston rod 16, and the push pin 2 is connected to the bottom end of the second piston rod 16, and the push pin 2 passes through the extension 13, the first piston rod 6 and the punch 1 downward in sequence. It can be seen that the second piston rod 16, the extension 13, the first piston rod 6, the punch 1, and the push pin 2 are all on the same central axis, that is, their respective central axes (vertical axes) are the same. The extension 13 is used to play a good role in guiding, limiting, and balancing the push pin 2. Preferably, the first cylinder body 5 is connected to a first bracket 23, the second cylinder body 15 is connected to a second bracket 24, the second bracket 24 is installed on the first bracket 23, and the installation position of the second bracket 24 on the first mounting frame 23 can be adjusted up and down and / or left and right, wherein, by setting a vertical waist-shaped hole that can be adjusted up and down to change the installation position, the up and down position of the push pin 2 can be changed, thereby changing the lowest position reached by the push pin 2 when pushed downward, thereby meeting the needs of different fabrics, and being able to be adjusted left and right makes it easy to fine-tune the centering position of the push pin 2 relative to the extension part 13, the first piston 6, and the vertical axial hole in the punch 1.

[0031] The receiving plate 3 is arranged below the punching seat 7 to receive the gasket pushed down by punching. The receiving plate 3 is connected to a lifting unit 17 to control the up and down movement of the receiving plate 3. Preferably, the receiving plate 3 is a vacuum adsorption carrier, and its top surface is a vacuum adsorption surface 18. The lifting unit 17 adopts a cylinder, and the receiving plate 3 can move up and down under the driving action of the lifting unit 17, and then move downward away from the bottom end of the punching seat 7 or upward close to the bottom end of the punching seat 7; in this embodiment, the punch 1 is provided with two and arranged side by side along the transverse conveying direction. Correspondingly, the push pin 2 is also provided with two corresponding to each punch 1, and the vacuum adsorption surface of the receiving plate 3 is divided into two gasket adsorption areas arranged side by side to correspond to the bottom of the two punches 1 respectively.

[0032] The lifting unit 17 is connected to a transverse conveying unit, and the transverse conveying unit drives the lifting unit 17 and the receiving plate 3 to move in the transverse direction, so as to translate and convey the gasket from below the punch 1 to below the folding station. Specifically, the transverse conveying unit includes a third cylinder 19 and a conveying base 20, and the third cylinder 19 is installed on the conveying base 20, and a first guide rail 21 extending transversely is provided on the conveying base, and the telescopic rod of the third cylinder 19 is driven and connected to a slide 22, and the slide 22 is adapted to the first guide rail 21 so as to slide transversely along the first guide rail 21. The second cylinder 14 is installed on the slide 22. A second guide rail extending vertically is provided on the slide 22, and the receiving plate 3 is connected to a slider, and the slider is adapted to the second guide rail so as to slide vertically along the second guide rail. The installation and application of the entire secondary push-down gasket punching device on the sewing machine can be achieved through the conveying base 20.

[0033] In other embodiments, the conveying base frame can also be designed to include a first base frame and a second base frame that are detachably split and laterally assembled, the first guide rail includes a left-section guide rail and a right-section guide rail, the left-section guide rail is arranged on the first base frame, the right end of the left-section guide rail is spaced apart from the right end of the first base frame, the right-section guide rail is arranged on the second base frame, and the left end of the right-section guide rail extends beyond the left end of the second base frame, so that: the second base frame is assembled to the right end of the first base frame, the left end of the right-section guide rail extends to the first base frame to be locked and fixed in position and spliced ​​with the right end of the left-section guide rail. In this way, the two-section design allows the first frame and the left-section guide rail to be attached to the sewing machine body, while the second frame and the right-section guide rail are packaged separately together with the main body of the secondary push-down gasket punching device. This can reduce the total length of the equipment in the left and right directions, facilitate transportation, and be more convenient to install. The second frame is assembled to the right end of the first frame, and the right end extension and lengthening design of the right-section guide rail can be utilized so that it can be extended to the first frame. The locking holes are provided on the extended and lengthened part of the right-section guide rail to lock it to the first frame, thereby connecting and locking the first frame and the second frame, and providing better stability.

[0034] Next, the working process and principle of the secondary push-down gasket punching device of this embodiment are introduced:

[0035] The strip loaded on the reel 11 is automatically unwound by the motor drive, and the strip passes through the strip slot 9 (when preparing for punching, the material receiving plate 3 has risen to below the bottom end of the punching seat 7, that is, it is in a material receiving preparation state), and the punch 1 is driven by the first piston rod 6 to move downward in the punching hole 8 and extend into the strip slot 9 to cut and form a gasket on the strip, and the push pin 2 is driven by the second piston rod 16 to move downward until it exceeds the bottom end of the punch 1, playing a secondary pushing role (actual During actual operation, if the gasket is completely separated from the strip by a single punching action, the gasket can be dropped onto the receiving plate 3 by the single punching action. However, if the gasket cannot be punched to be completely separated from the strip, the gasket may still be partially connected to the original strip, and the gasket cannot be dropped onto the receiving plate 3 normally. Therefore, the secondary pushing action later applies a downward thrust to the gasket, so that the gasket completely falls off from the original strip onto the receiving plate 3), ensuring that the gasket can smoothly fall onto the receiving plate 3 each time. Subsequently, the lifting unit 17 controls the receiving plate 3 to descend, and the lateral conveying unit drives the lifting unit 17 and the receiving plate 3 to move laterally with the gasket, so that the gasket is translated from under the punch 1 to under the folding station, and the lifting unit 17 then controls the receiving plate 3 to rise to deliver the gasket into place. Subsequently, the unloaded receiving plate 3 is controlled by the lifting unit 17 to descend and reset, controlled by the lateral conveying unit to be laterally displaced and reset to the bottom of the punching seat 7, and controlled by the lifting unit 17 to be reset upward to the bottom end close to the punching seat 7 to prepare for the next gasket connection.

[0036] And, a sewing machine is provided, which includes a sewing machine body, on which the secondary push-down gasket punching device is arranged, specifically, the sewing machine body includes a workbench assembly, a folding device, a sewing device and a material receiving device, and the secondary push-down gasket punching device is arranged beside the folding device. The secondary push-down gasket punching device punches the strip to obtain the gasket, and then conveys the gasket to the folding device.

[0037] The design focus of the utility model is that it mainly uses the arrangement of the punch 1, the push pin 2 and the receiving plate 3, utilizes the punch 1 to punch and cut once to form a gasket, and the push pin 2 pushes down twice to ensure reliable punching and blanking. This structure is simple and compact, and the action is also simplified; further, combined with the lateral conveying unit to drive the lifting unit 17 and the receiving plate 3 to move laterally, the gasket is directly translated from the bottom of the punch 1 to the bottom of the folding station, the entire punching and conveying action is greatly simplified, which is beneficial to improving efficiency, and the structure is more compact, which is convenient for installation and application on the sewing machine.

[0038] 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 secondary push-down gasket punching device, characterized in that: Included A punch, which is driven by a first cylinder to move up and down; the first cylinder includes a first cylinder body and a first piston rod extending up and down, the first cylinder body is installed on a punching seat, a vertically extending punching hole and a transversely extending strip groove are arranged in the punching seat, the punching hole penetrates downward through the strip groove and penetrates to the bottom end of the punching seat, the strip groove is located above the bottom end of the punching seat to maintain a blanking distance; the punch is driven by the first piston rod to be able to move up and down in the punching hole and extend downward into the strip groove; A push pin is driven by a second cylinder to move up and down; the second cylinder includes a second cylinder body and a second piston rod extending up and down, and the second piston rod drives the push pin to move up and down through the first cylinder body, the first piston rod and the punch, and can extend out of the bottom end of the punch; A receiving plate is arranged below the punching seat to receive the gasket.

2. The secondary push-down gasket punching device according to claim 1, characterized in that: The punch is directly connected to the bottom end of the first piston rod, a through hole is provided at the top of the first cylinder body, and the top of the first piston rod is connected to an extension portion extending directly upward, the extension portion passes through the through hole upward and extends out of the top of the first cylinder body, the top of the extension portion is located below the bottom end of the second piston rod, and the push pin is vertically extended, and the push pin passes through the extension portion, the first piston rod and the punch downward in sequence.

3. The secondary push-down gasket punching device according to claim 2, characterized in that: The first cylinder body is connected to a first bracket, the second cylinder body is connected to a second bracket, the second bracket is mounted on the first bracket, and the mounting position of the second bracket on the first bracket can be adjusted up and down and / or left and right.

4. The secondary push-down gasket punching device according to claim 1, characterized in that: The material receiving plate is connected with a lifting unit to control the up and down movement of the material receiving plate.

5. The secondary push-down gasket punching device according to claim 4, characterized in that: The material receiving plate is a vacuum adsorption carrier plate, and its top surface is a vacuum adsorption surface.

6. The secondary push-down gasket punching device according to claim 4 or 5, characterized in that: The lifting unit is connected to a transverse conveying unit, and the transverse conveying unit drives the lifting unit and the receiving plate to move in a transverse direction so as to translate and convey the gasket from below the punch to below the folding station.

7. The secondary push-down gasket punching device according to claim 6, characterized in that: The lateral conveying unit includes a third cylinder and a conveying base, the third cylinder is installed on the conveying base, a first guide rail extending laterally is provided on the conveying base, the telescopic rod of the third cylinder is driven and connected with a slide seat, the slide seat is adapted to the first guide rail so as to slide laterally along the first guide rail, and the lifting unit is installed on the slide seat.

8. The secondary push-down gasket punching device according to claim 7, characterized in that: The slide seat is provided with a second guide rail extending vertically, the material receiving plate is connected with a sliding block, and the sliding block is adapted to the second guide rail so as to be able to slide vertically along the second guide rail.

9. The secondary push-down gasket punching device according to claim 7, characterized in that: The conveying base frame includes a first base frame and a second base frame that are detachably split and laterally assembled, the first guide rail includes a left-section guide rail and a right-section guide rail, the left-section guide rail is arranged on the first base frame, the right end of the left-section guide rail is spaced apart from the right end of the first base frame, the right-section guide rail is arranged on the second base frame, the left end of the right-section guide rail extends beyond the left end of the second base frame, so that: the second base frame is assembled to the right end of the first base frame, the left end of the right-section guide rail extends to the first base frame to be locked and fixed in position and spliced ​​with the right end of the left-section guide rail.

10. A sewing machine, comprising a sewing machine body, characterized in that: The sewing machine body is provided with a secondary push-down gasket punching device as claimed in any one of claims 1 to 9.

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