A manufacturing process method of a bundle pocket gilding production line

Abstract

The present application relates to a kind of bundle pocket manufacturing field, especially a kind of bundle pocket gold stamping production manufacturing flow line and manufacturing process method, including sequentially arranged including rack, deviation correction feeding device, color standard pattern printing device, first cloth transmission device, drying device, second cloth transmission device, gold stamping (hot transfer printing, branding) device, edge strip fixing device, flanging flattening device, positioning punching device, third cloth transmission device and cutting device are sequentially set on the rack.The technical scheme of the present application greatly improves the automation degree of bundle pocket gold stamping (hot transfer printing, branding) production, reduces production cost, improves the precision and firmness of gold stamping (hot transfer printing, branding) bundle pocket manufacturing.

Description

Technical Field

[0001] This invention relates to a drawstring bag manufacturing apparatus, and more particularly to a production line and manufacturing process for hot stamping (heat transfer, branding) of drawstring bags. Background Technology

[0002] The statements herein provide only background information in relation to this invention and do not necessarily constitute prior art.

[0003] Patent CN202111136125.3 discloses a production line and manufacturing process for drawstring bags, comprising a feeding and straightening device, a positioning and punching device, an upper edge folding device, an upper edge sewing device, a folding device, a double-stitch sewing device, and a cutting device arranged sequentially. However, this production line cannot automate the sewing of two fabrics together, and it is suitable for producing drawstring bags without patterns. When automatic sewing of two fabrics is required, or when sewing drawstring bags requires simultaneous automatic hot stamping, heat transfer printing, branding, screen printing, or other processes, this production line cannot meet the demands. Summary of the Invention

[0004] The purpose of this invention is to provide a production line and manufacturing process for hot stamping (heat transfer, branding) of drawstring bags, thereby solving the technical problem in existing technologies that cannot automatically splice two types of fabrics and simultaneously hot stamp (heat transfer, branding) the fabric surfaces. To achieve the above objective, this invention provides the following technical solution:

[0005] In a first aspect, the present invention provides a production line for hot stamping (heat transfer, branding) of drawstring bags, including a frame, on which a correction feeding device, a color mark pattern printing device, a first fabric transmission device, a drying device, a second fabric transmission device, a hot stamping (heat transfer, branding) device, an edge fixing device, a flanging and flattening device, a positioning and punching device, a third fabric transmission device, and a cutting device are arranged in sequence.

[0006] The aforementioned correction and feeding device is used to feed the rolled fabric.

[0007] The color mark pattern printing device prints color marks and customized patterns on the fabric at a set distance;

[0008] The first fabric conveying device conveys the fabric with color marks forward to the drying device;

[0009] The aforementioned drying device allows the fabric printed with color marks to be naturally air-dried or oven-dried over a long distance.

[0010] The second fabric conveying device conveys the dried fabric with the printed color mark pattern forward to the hot stamping device;

[0011] The hot stamping (heat transfer, branding) device described above applies hot stamping patterns to the fabric.

[0012] The edge strip fixing device fixes the edge strip to the edge of the fabric;

[0013] The aforementioned hemming and flattening device folds the edge strip 180°, folding it outside the edge of the fabric;

[0014] The aforementioned positioning and drilling device drills holes on the edge strip at a set distance;

[0015] The third fabric conveying device continues to transport the fabric forward;

[0016] The cutting device, based on the color mark, cuts the fabric at the color mark position, and includes a fabric pulling device, a cutting blade, and a color mark detection device; the fabric pulling device and the color mark detection device can move back and forth along the length of the fabric, and the cutting blade can move up and down; the fabric pulling device pulls the fabric forward, and after the color mark detection device detects the color mark and it reaches below the cutting blade, the cutting blade moves downward to cut.

[0017] As a further technical solution, the color mark pattern printing device comprises a semi-automatic screen printing machine and a screen printing machine base. The semi-automatic screen printing machine is installed on a base that can move back and forth along the width of the fabric. The main fabric released by the correction feeding device is pulled by the pressure roller to the screen printing machine and stops. The screen printing machine works to complete the printing of color marks and patterns (as needed). For subsequent printing, the color mark detection device identifies the color mark and, in combination with the set length, completes the longitudinal printing positioning of each unit. The lateral printing positioning is completed by the color mark detection device identifying the fabric edge and moving the screen printing machine laterally. Thus, the coordinate positioning and printing of each printing unit are completed. When the pattern needs to be printed with transparent hot stamping paste before hot stamping with hot stamping paper, it is only necessary to separate the color mark and pattern on the same screen, use a bright color paste different from the main fabric color at the color mark, cut the squeegee strip in the middle, and keep the squeegee handle as a whole. In this way, the color mark and pattern hot stamping paste can be printed simultaneously.

[0018] As a further technical solution, the hot stamping device includes a hot stamping foil waste recycling roller, a hot stamping foil feeding roller, a hot stamping machine head, a hot stamping machine heating plate, a customized mold, and a peeling device. Hot stamping foil is wound on the hot stamping foil feeding roller, and the hot stamping foil waste recycling roller collects the hot stamping foil waste. The hot stamping foil waste recycling roller is the driving roller, and the hot stamping foil feeding roller is the driven roller. The hot stamping machine head is located between the hot stamping foil waste recycling roller and the hot stamping foil feeding roller. A template to be hot stamped is set on the bottom mold of the hot stamping machine head. When the fabric moves to the hot stamping device, the hot stamping foil comes into contact with the fabric, and the hot stamping machine head presses down on the hot stamping foil to form the hot stamping content on the surface of the fabric.

[0019] As a further technical solution, the hot stamping device can also be replaced by a branding device or a heat transfer device.

[0020] As a further technical solution, the fabric pulling device includes an upper clamping plate and a lower clamping plate. The upper clamping plate is fixed, while the lower clamping plate is driven by a cylinder to move up and down. When the fabric needs to be pulled, the lower clamping plate moves upward to clamp the fabric.

[0021] As a further technical solution, the positioning and punching device includes a puncher and two color mark detection devices. The color mark detection devices are used to identify color marks and correct fabric edge deviation to ensure the accuracy of the punching position.

[0022] As a further technical solution, the correction and feeding device includes a feeding roller, a color mark detection device, a correction motor, and a movable base.

[0023] As a further technical solution, the edge strip fixing device includes an edge strip unwinding roller and a sewing device. The edge strip unwinding roller is disposed on one side of the sewing device. The edge strip unwinding roller is passively unwound as the sewing progresses, and the sewing device sews the edge strip to the edge of the fabric.

[0024] As a further technical solution, the edge strip fixing device can move back and forth along the width direction of the fabric; the positioning and punching device can move back and forth along the width direction of the fabric, and can also move along the length direction of the fabric to adjust the punching position.

[0025] As a further technical solution, a color mark detection device is installed behind the hot stamping (heat transfer, branding) device.

[0026] Secondly, the present invention provides a process for a drawstring bag hot stamping production line that can simultaneously perform hot stamping, heat transfer printing, branding, and screen printing, including the following steps:

[0027] Step 1: Unwind the rolled fabric;

[0028] Step 2: Print color marks and custom patterns on the fabric at the set intervals;

[0029] Step 3: The fabric with the color mark is conveyed forward to the drying device;

[0030] Step 4: The hot stamping (heat transfer, branding) device heats the content onto the fabric, and the content is located within the area formed by the adjacent scribing lines;

[0031] Step 5: Convey the heat-pressed fabric forward to the edge strip fixing device;

[0032] Step 6: The edge strip fixing device secures the edge strip to the edge of the fabric;

[0033] Step 7: The hem-flattening device folds the hem strip 180°, placing the fabric and the hem strip on the same plane;

[0034] Step 8: Continue to feed the fabric forward to the positioning and punching device to punch holes at the set positions and distances;

[0035] Step 9: Cut the fabric at the color mark according to the color mark in Step 2.

[0036] The specific work process of step 9 is as follows:

[0037] The color mark detection device moves in advance to the cutting edge to wait for the color mark. When the fabric with the color mark is moved to the cutting edge, the color mark detection device detects the color mark, the fabric stops moving, the color mark detection device retracts to wait for the next operation, the cutting blade falls, and the cutting is completed.

[0038] The beneficial effects of the present invention are as follows:

[0039] This invention can simultaneously achieve automatic splicing of two fabrics, double perforation of the edge strips, double hot stamping of the main fabric, and automatic cutting. The hot stamping machine also has branding and heat transfer functions. This invention can also be equipped with a multi-color screen printing device and can perform edge perforation on a single fabric (by installing a hem-folding pull tube and a sewing edge-adding device behind the perforation device). Compared to the traditional drawstring bag production process, which involves processes such as cutting, sewing, perforation, screen printing, branding, and heat transfer that cannot be performed simultaneously, this invention significantly improves the automation level of drawstring bag manufacturing, reduces production costs, and enhances product precision and durability. Attached Figure Description

[0040] The accompanying drawings, which form part of this specification, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute a limitation thereof. It should also be understood that these drawings are for simplicity and clarity and are not necessarily drawn to scale. The invention will now be described and explained with additional features and details using the drawings, wherein:

[0041] Figure 1 This is a schematic diagram of the overall structure of the production line shown in this invention;

[0042] Figure 2 This is an isometric view of the corrective feeding device shown in this invention;

[0043] Figure 3 This is an isometric view of the corrective feeding device, color mark pattern printing device, first fabric transmission device, and second fabric transmission device shown in this invention.

[0044] Figure 4This is a schematic diagram of the color mark pattern printing apparatus shown in this invention;

[0045] Figure 5 This is an isometric view of the hot stamping (heat transfer, branding) device shown in this invention;

[0046] Figure 6 This is an isometric view of the hot stamping (heat transfer, branding) device shown in this invention;

[0047] Figure 7 This is an isometric view of the edge strip fixing device shown in this invention;

[0048] Figure 8 This is an isometric view of the positioning and drilling device shown in this invention;

[0049] Figure 9 This is a schematic diagram of the cutting device shown in this invention;

[0050] Figure 10 This is a schematic diagram of the fabric pulling device shown in this invention;

[0051] Figure 11 This is a schematic diagram of the flange flattening device shown in this invention;

[0052] Figure 12 This is a diagram illustrating the transmission of fabric throughout the production line according to the present invention;

[0053] In the diagram: 1. Correcting and feeding device; 2. Color mark pattern printing device; 3. First fabric transmission device; 4. Second fabric transmission device; 5. Hot stamping (heat transfer, branding) device; 6. Hot stamping (heat transfer, branding) device; 7. Third fabric transmission device; 8. Edge strip fixing device; 9. Positioning and punching device; 10. Fourth fabric transmission device; 11. Cutting device; 12. Frame; 13. Color mark detection device; 14. Color mark detection device; 15. Flanging and flattening device; 16. Main fabric.

[0054] 1-1 Unwinding roller, 1-2 Guide roller, 1-3 Pressure roller, 1-4 Guide roller, 1-5 Swinging mechanism;

[0055] 2-1 Screen printing machine head, 2-2 Screen printing machine squeegee, 2-3 Screen printing platform, 2-4 Screen printing machine operating table;

[0056] 5-1 Hot stamping foil waste recycling roller, 5-3 Hot stamping foil feeding roller, 5-2 Hot stamping machine head, 5-4 Hot stamping foil (heat transfer printing film), 5-5 Hot stamping machine heating plate and customized mold, 5-6 Peeling device.

[0057] 8-1 Edge strip unwinding roller, 8-2 Sewing device, 8-3 Auxiliary fabric edge strip, 8-4 Multi-needle machine worktable;

[0058] 9-1 Hole punch, 9-2 Hole punch base, 9-3 Moving platform, 9-4 Fabric splicing flattening rod, 9-5 Color mark detection device;

[0059] 11-1 Fabric clamping and pulling device, 11-2 Cutting knife that moves up and down, 11-3 Color mark detection device. Detailed Implementation

[0060] The technical solution of a typical embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0061] Glossary: ​​The "drawstring bag hot stamping" in this invention can also be called "drawstring bag heat transfer printing" or "drawstring bag branding". The hot stamping device in this invention can also be designed as a heat transfer printing device or a branding device.

[0062] Example 1

[0063] like Figure 1 As shown, this embodiment provides a production line for hot stamping (heat transfer, branding) of drawstring bags according to the present invention, including a frame, on which are arranged in sequence a correction and feeding device 1; a color mark pattern printing device 2; a first fabric transmission device 3; a second fabric transmission device 4; a first hot stamping (heat transfer, branding) device 1; a second hot stamping (heat transfer, branding) device 6; a third fabric transmission device 7; a side strip fixing device 8; a positioning and punching device 9; a fourth fabric transmission device 10; a cutting device 11; a frame 12; a color mark detection device 13; a color mark detection device 14; a hem flattening device 15; and a main fabric 16.

[0064] The aforementioned straightening and feeding device 1 is used to feed the rolled fabric and also has a certain straightening function. The straightening and feeding device includes a unwinding roller 1-1, a guide roller 1-2, a pressure roller 1-3, a guide roller 1-4, and a swing mechanism 1-5, which are mounted on the frame. The swing mechanism 1-5 can realize the unwinding and rewinding of the fabric.

[0065] The color mark pattern printing device 2 includes a semi-automatic screen printing machine (screen printing machine head 2-1, screen printing machine squeegee 2-2, screen printing platform 2-3, screen printing machine operating table 2-4) and a movable screen printing machine base. The semi-automatic screen printing machine is existing equipment and will not be described in detail here. The movable screen printing machine base is controlled by a color mark sensor to identify the fabric edge, send a program signal, and control the movement of the base to ensure the lateral positioning of the color mark pattern printing position. It should be noted that the optimal shape of the color mark here is a long, narrow rectangle. The function of the color mark is to detect the color mark during the entire production line process and send signals to the program to ensure: 1. Vertical positioning of the pattern screen printing, hot stamping, heat transfer, or branding in each unit; 2. Vertical positioning of double punching; 3. Precise vertical positioning of the cutting position (the color mark is the cutting point). It should also be noted that during the entire production line process, color mark sensors are set up in multiple places to identify the fabric edge and send signals to the program. The program then gives instructions to control the devices at screen printing, hot stamping (heat transfer, branding), splicing of two fabrics, punching, cutting, etc., to move along the width of the fabric to complete the lateral positioning.

[0066] The first fabric transmission device 3 and the second fabric transmission device 4 convey the fabric with color marks forward to the hot stamping (heat transfer, branding) device 5 and the hot stamping (heat transfer, branding) device 6. Furthermore, in this embodiment, the first fabric transmission device 3 is set at multiple positions on the frame. In this embodiment, the fabric with color marks travels multiple times on the frame before entering the second fabric transmission device 4. That is, in this embodiment, the travel path of the fabric with color marks is extended. The reason for this design is to dry the color marks and ensure that the fabric with color marks is basically dry before reaching the second fabric transmission device 4.

[0067] A color mark detection device 14 is also set between the second fabric transmission device 4 and the first hot stamping (heat transfer, branding) device 5 to detect the position of the color mark and ensure the accuracy of the hot stamping position of the first hot stamping (heat transfer, branding) device 5.

[0068] Hot stamping (heat transfer, branding) device 5 and hot stamping (heat transfer, branding) device 6 have the same overall structure. The purpose of double hot stamping is to simultaneously complete hot stamping on the front and back of the drawstring bag or on the front of two adjacent drawstring bags. This is to increase the speed of hot stamping (heat transfer, branding). Figure 5 , Figure 6 As shown, each hot stamping (heat transfer, branding) device includes a hot stamping paper waste recycling roller 5-1, a hot stamping paper feeding roller 5-3, a hot stamping machine head 5-2, hot stamping paper (heat transfer film) 5-4, a hot stamping machine heating plate and customized mold 5-5, and a peeling device 5-6. Hot stamping paper is wound on the hot stamping paper feeding roller. The hot stamping paper waste recycling roller 5-1 is the driving roller, and the hot stamping paper feeding roller 5-3 is the driven roller. The hot stamping (heat transfer, branding) machine is set between the hot stamping paper waste recycling roller 5-1 and the hot stamping paper feeding roller 5-3.

[0069] The specific methods for different printing patterns will now be described separately:

[0070] 1. When the pattern needs to be printed with transparent hot stamping paste, the color mark and the pattern on the same screen should be separated before the color mark printing device starts working. Use a bright color paste that is different from the color of the main fabric at the color mark. Cut the squeegee strip in the middle, but keep the squeegee handle as a whole. This completes the simultaneous printing of the color mark and transparent hot stamping paste. During hot stamping, hot stamping paper suitable for the hot stamping paste is selected. The heating plate of the hot stamping machine and the heating plate of the custom mold 5-5 only retain the flat heating plate. When the fabric with the printed color mark and hot stamping paste pattern runs to the hot stamping machine, the color mark detection device detects the color mark, the fabric stops running, the heating plate of the hot stamping machine presses down, and the hot stamping is completed. The peeling device 5-6 works to complete the peeling of the hot stamping paper 5-4 and the main fabric 16. The hot stamping paper waste recycling roller 5-1 works to rewind, and the hot stamping paper feeding roller 5-3 passively feeds the paper. The entire hot stamping process is completed. The second hot stamping (heat transfer, branding) device simultaneously completes the hot stamping of the next pattern.

[0071] 2. When the pattern requires direct hot stamping using a hot stamping stencil (relief printing), the color mark printing device only needs to print the color marks. During the hot stamping process, select hot stamping foil suitable for the fabric, install the pre-made hot stamping stencil (relief printing) under the heating plate, and the other steps and processes are the same as in process 1 above;

[0072] 3. When the pattern needs to be branded, remove the hot stamping foil and install the pre-made branding plate (embossing) under the heating plate. Other steps and processes are the same as in process 2 above.

[0073] 4. When the pattern requires heat transfer, the hot stamping foil is replaced with roll heat transfer film, and only the flat heating plate is retained. Other steps and processes are the same as process 2 for the surface. When the heat transfer film is in sheet form, a robotic arm can be used to automatically pick up and feed the material while the hot stamping machine (i.e., heat transfer machine) is working.

[0074] Furthermore, the aforementioned peeling device 5-6 is a peeling rod. Driven by the driving device, the peeling rod can swing back and forth between the hot stamping foil (heat transfer film) 5-4 and the main fabric 16 to achieve the peeling between the hot stamping foil (heat transfer film) and the main fabric.

[0075] In this embodiment, two hot stamping (heat transfer, branding) devices are provided. These two devices can stamp different content on different locations of the fabric. The content to be stamped can be set on a mold, screen-printed with hot stamping paste, or combined with heat transfer and branding. The content can include letters, numbers, text, or patterns, etc., designed according to actual needs. Furthermore, a color mark detection device 14 is also provided between the two hot stamping (heat transfer, branding) devices to detect the position of the color mark, ensuring the accuracy of the hot stamping (heat transfer, branding) position.

[0076] The second fabric transmission device conveys the hot-stamped fabric forward to the edge strip fixing device;

[0077] The edge strip fixing device covers the edge of the fabric and is sewn in place;

[0078] The aforementioned edge-folding and flattening device folds the edge strip 180 degrees to achieve a flat surface with the main fabric.

[0079] The aforementioned positioning and punching device punches holes in the fabric at predetermined positions;

[0080] The third fabric conveying device continues to transport the fabric forward to the cutting device;

[0081] The cutting device cuts the fabric according to the position of the color mark.

[0082] As a further technical solution, such as Figure 8 As shown, the positioning and punching device includes a puncher 9-1, a puncher base 9-2, a moving platform 9-3, a color mark detection device 9-5, and a fabric pressing rod 9-4. The puncher 9-1 is mounted above the puncher base 9-2, and the puncher base 9-2 is mounted on the moving platform 9-3. The color mark detection devices 9-5 are located on both sides of the puncher 9-1. One color mark detection device 9-5 identifies the color mark to position the spliced ​​fabric longitudinally, while the other color mark detection device 9-5 identifies the edge of the spliced ​​fabric for lateral positioning. Then, based on the positioned positions, both punchers punch holes simultaneously. The fabric pressing rod 9-4 is located in front of the puncher 9-1 and is used to flatten the fabric to be punched.

[0083] As a further technical solution, the cutting device 11 includes a fabric clamping and pulling device 11-1, a cutting blade 11-2 that can move up and down, and a color mark detection device 11-3; the fabric pulling device 11-1 can move back and forth along the length of the frame under the drive of the driving device, the cutting blade 11-2 can move up and down, and the color mark detection device 11-3 can move back and forth; the color mark detection device 11-3 and the driving device are mounted on the frame; the cutting blade is also mounted on the frame.

[0084] The fabric clamping and pulling device 11-1 includes an upper clamping plate 11-1-1, a lower clamping plate 11-1-2, a screw drive device 11-1-4, and a rack 11-1-5. The upper clamping plate 11-1-1 is fixed, while the lower clamping plate 11-1-2 is driven by a cylinder 11-1-3 to move up and down. The lower clamping plate 11-1-2 moves upward to clamp the fabric and moves downward to release the fabric. The upper clamping plate 11-1-1 and the lower clamping plate 11-1-2 can move along the width direction of the frame under the drive of the screw drive device 11-1-4, and can also move along the length direction of the frame along the rack 11-1-5 on the frame under the drive of the motor.

[0085] When the fabric pulling device needs to pull the fabric, the lower clamping plate moves upward to clamp the fabric. Then, the fabric pulling device pulls the fabric backward along the length of the frame for a certain distance. The color mark detection device recognizes that the color mark has reached below the cutting knife. The color mark detection device retracts, the cutting knife falls, and the cutting is completed. At this time, the lower clamping plate of the fabric pulling device is released, and the semi-finished drawstring bag falls into the packaging box. After that, manual processing such as sewing, turning the bag inside out, and threading the drawstring is carried out to obtain the finished spliced ​​hot stamping (heat transfer, branding) drawstring bag.

[0086] In this invention, the cutting device allows the color mark detection device to move in advance to the cutting edge to await the color mark. The position of the screen-printed color mark is the position to be cut. When the fabric with the color mark moves to the cutting edge, the fabric stops moving, the color mark detection device retracts to wait for the next operation, and the cutting blade falls to complete the cutting. The advantage of this is that it does not need to consider whether the distance between color marks is the same. As long as the color mark is detected to be at the cutting blade, the cutting blade will not fall, thus preventing cutting deviation and essentially eliminating defective or waste products in this cutting process.

[0087] As a further technical solution, such as Figure 7As shown, the edge strip fixing device 8 includes an edge strip unwinding roller 8-1 and a sewing device 8-2. The edge strip unwinding roller 8-1 is located on one side of the sewing device 8-2. After the edge strip unwinding roller 8-1 passively unwinds the auxiliary fabric edge strip 8-3, it is positioned near the edge of the main fabric 16. A pressing rod then presses the auxiliary fabric edge strip 8-3 and the main fabric 16 on the multi-needle machine worktable 8-4 together, ensuring that the edge strip and the main fabric are overlapped. The sewing device 8-2 then sews the auxiliary fabric edge strip 8-3 to the edge of the main fabric 16. Furthermore, the edge strip fixing device 8 is used to sew the auxiliary fabric edge strip 8-3 onto the main fabric 16. A color mark detection device is installed on the edge of the main fabric 16 to ensure that the main fabric 16 is conveyed in a straight line to the sewing device 8-2, thereby achieving complete overlap between the main fabric 16 and the auxiliary fabric edge strip 8-3. To accommodate main fabrics 16 of different widths, the edge strip fixing device can move back and forth along the width direction of the main fabric 16 to adjust the fixing position of the edge strip.

[0088] Furthermore, the color of the aforementioned edge strip fabric can be different from the material and color of the main fabric to achieve an aesthetically pleasing and eye-catching effect.

[0089] Furthermore, such as Figure 11 As shown, the above-mentioned hemming and flattening device 15 mainly flips the edge strip 180 degrees and flips the sewn edge strip to the outside of the main fabric 16. Because it is necessary to punch holes in the edge strip so that a rope can be threaded through the edge strip later, it is necessary to flip the edge strip 180 degrees to the outside of the fabric.

[0090] A pressing rod 15-1 is also provided at the rear end of the hemming and flattening device 15. The pressing rod 15-1 is mainly used to flatten the fabric that has been turned over and spliced.

[0091] As a further technical solution, the color mark pattern printing device can move back and forth along the width of the fabric to adjust the printing position.

[0092] As a further technical solution, the positioning and punching device can move back and forth along the width of the fabric to adjust the vertical position of the punch.

[0093] Example 2

[0094] This embodiment provides a manufacturing process method based on the drawstring bag hot stamping (heat transfer, branding) production line of Embodiment 1, including the following steps:

[0095] Step 1: The web-aligning and feeding device feeds the rolled fabric. The structure of the web-aligning and feeding device can refer to existing technology.

[0096] Step 2: The color mark pattern printing device screen prints color marks and patterns (as needed) on the fabric at a set distance, and the printed rectangles serve as color mark identification blocks.

[0097] Step 3: The first and second fabric transmission devices convey the fabric with color marks forward to the hot stamping (heat transfer, branding) device.

[0098] Step 4: The first hot stamping (heat transfer, branding) device and the second hot stamping (heat transfer, branding) device hot stamp the pattern to be hot stamped onto the fabric, and the pattern is located in the area formed by the adjacent scribing lines.

[0099] Step 5: The third fabric conveying device will forward transport the hot-printed fabric to the edge strip fixing device.

[0100] Step 6: The edge strip fixing device fixes the edge strip to the edge of the fabric;

[0101] Step 7: The positioning and drilling device drills holes on the edge strip at the set positions;

[0102] Step 8: The third fabric conveyor continues to transport the fabric forward;

[0103] Step 9: The cutting device cuts the fabric according to the color marks in Step 2.

[0104] The transmission diagram of the above fabric in the entire production line is as follows: Figure 12 As shown.

[0105] Although the present invention has been described above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make possible changes and modifications to the technical solutions of the present invention by utilizing the methods and techniques disclosed above without departing from the spirit and scope of the present invention. Therefore, any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solutions of the present invention shall fall within the protection scope of the technical solutions of the present invention.

Claims

1. A hot stamping production line for drawstring bags, characterized in that, The machine includes a frame, on which are sequentially installed a correction and feeding device, a color mark pattern printing device, a drying device, a hot stamping device, an edge strip fixing device, an edge flattening device, a positioning and punching device, and a cutting device. The correction and feeding device is used to feed the rolled fabric. The color mark pattern printing device prints color marks on the fabric at a set distance; A first color mark detection device is installed in front of the color mark pattern printing device; The hot stamping device is used to hot stamp the pattern to be printed on the fabric. The hot stamping device includes a hot stamping foil waste collection roller, a hot stamping foil feeding roller, a hot stamping machine head, a hot stamping machine heating plate, and a peeling device. Hot stamping foil is wound on the hot stamping foil feeding roller, and the hot stamping foil waste collection roller collects the hot stamping foil waste. The hot stamping foil waste collection roller is the driving roller, and the hot stamping foil feeding roller is the driven roller. The hot stamping machine head is located between the hot stamping foil waste collection roller and the hot stamping foil feeding roller. The hot stamping machine heating plate is installed on the hot stamping machine head. When the fabric moves to the hot stamping device, the hot stamping foil comes into contact with the fabric, and the hot stamping machine head presses down on the hot stamping foil to form the hot stamped content on the surface of the fabric. The peeling device is located on one side of the hot stamping machine head; the peeling device is a peeling rod, which swings back and forth between the hot stamping foil and the fabric under the drive of the drive device to achieve the peeling between the hot stamping foil and the fabric. The edge strip fixing device fixes the edge strip to the edge of the fabric; The edge-folding and flattening device folds the edge strip 180°, folding it outside the edge of the fabric so that the edge strip and the fabric are on the same plane. The positioning and punching device punches holes on the edge strip at a set distance. The positioning and punching device includes a punch and a second color mark detection device. The second color mark detection device is set on both sides of the punch. One of the second color mark detection devices identifies the color mark to position the fabric longitudinally, and the other second color mark detection device identifies the fabric edge to position it laterally. Then, the punch punches holes according to the positioned position. The cutting device, based on the color mark, cuts the fabric at the color mark position, and includes a fabric pulling device, a cutting blade, and a third color mark detection device; the fabric pulling device and the third color mark detection device can move back and forth along the length of the fabric, and the cutting blade can move up and down; the fabric pulling device pulls the fabric forward, and after the third color mark detection device detects the color mark and it reaches below the cutting blade, the cutting blade moves downward to cut; The fabric pulling device includes an upper clamping plate and a lower clamping plate. The upper clamping plate is fixed, while the lower clamping plate is driven by a cylinder to move up and down. When the fabric needs to be pulled, the lower clamping plate moves upward to clamp the fabric.

2. The hot stamping production line for drawstring bags as described in claim 1, characterized in that, The positioning and punching device includes a punching base, a movable platform, and a fabric flattening rod; the punching device is installed above the punching base, and the punching base is installed on the movable platform; the fabric flattening rod is located in front of the punching device and is used to flatten the fabric to be punched.

3. The hot stamping production line for drawstring bags as described in claim 1, characterized in that, The color mark pattern printing device includes a semi-automatic screen printing machine and a screen printing machine base. The semi-automatic screen printing machine is mounted on the screen printing machine base, which can move back and forth along the width of the fabric.

4. The hot stamping production line for drawstring bags as described in claim 1, characterized in that, The edge strip fixing device includes an edge strip unwinding roller and a sewing device. The edge strip unwinding roller is located on one side of the sewing device. After the edge strip unwinding roller is passively unwound, the sewing device sews the edge strip to the edge of the fabric.

5. The hot stamping production line for drawstring bags as described in claim 1, characterized in that, The edge strip fixing device can move back and forth along the width direction of the fabric; the positioning and punching device can move back and forth along the width direction of the fabric.

6. A process for hot stamping on a drawstring bag manufacturing line, characterized in that, The production line for hot stamping drawstring bags as described in any one of claims 1-5 specifically includes the following steps: Step 1: Unwind the rolled fabric; Step 2: Print color marks on the fabric at the set intervals; Step 3: Feed the fabric with the color mark forward to the hot stamping device; Step 4: The hot stamping device heats the content pattern onto the fabric, and the content pattern is located within the area formed by adjacent color marks; Step 5: Convey the hot-stamped fabric forward to the edge strip fixing device; Step 6: The edge strip fixing device secures the edge strip to the edge of the fabric; Step 7: The edge-folding and flattening device folds the edge strip 180°, folding it outside the fabric edge so that the edge strip and the fabric are on the same plane. The positioning and punching device punches holes on the edge strip at the set distance. Step 8: Continue conveying the fabric forward; Step 9: Cut the fabric according to the color chart in Step 2.

7. The hot stamping process in a drawstring bag hot stamping production line as described in claim 6, characterized in that, Includes the following steps: The specific working process of step 9 is as follows: The third color mark detection device moves to the cutting edge in advance to wait for the color mark. When the fabric with the color mark is moved to the cutting edge, the third color mark detection device detects the color mark, the fabric stops moving, the third color mark detection device is withdrawn to wait for the next operation, the cutting blade falls, and the cutting is completed.

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