Bag opening folding device of bag opening machine

Abstract

The utility model relates to a bag opening folding device of a bag opening machine. The bag opening folding device comprises a folding mechanism and a frame pressing mechanism. Two Y-axis folding knives of the folding mechanism are detachable, and a large pressing frame is provided with an edge folding pressing plate matched with the Y-axis folding knives; when the Y-axis folding knife is folded, the connecting portions can be mutually inserted, cloth pressing teeth which are evenly separated are arranged on the side, corresponding to the bending portion of the Y-axis folding knife, of the edge folding pressing plate, the racks of the bending portion and the cloth pressing teeth of the edge folding pressing plate are arranged in a staggered mode, and when the edge folding pressing plate gets close to the bending portion, the cloth pressing teeth can be embedded into gaps between the racks of the bending portion. Compared with the prior art, the bag cloth folding machine can adapt to processing of bag cloth of more sizes, edge folding and shaping are firm, and the folding knife is convenient and fast to replace.

Description

Technical Field

[0001] This utility model relates to the field of garment processing machinery technology, specifically to a bag opening folding device for a bag opening machine. Background Technology

[0002] In existing technologies, bag opening machines are widely used. Most existing bag opening machines have a material setting device, a laser cutting device, a bag folding device, and a sewing device set on the worktable. The bag folding device is fixed above the material feeding area for accessories such as the bag flap, opening fabric piece, or zipper. The material setting device slides back and forth between the bag folding device, the laser cutting device, and the sewing device. The bag opening processing involves: the material setting device sets the bag opening position, then the laser cutting device cuts the material. After cutting, the material is moved above the accessory and folded by the bag folding device. The garment is then stacked on the accessory, and finally, all parts are moved to the sewing station for sewing. However, this technology cannot achieve continuous processing and requires a high degree of manual intervention.

[0003] Chinese utility model patent CN214244833U discloses a continuous production garment pocket opening machine. Based on existing pocket opening machines, it adds a lower support plate below the pocket folding device for placing accessories such as pocket flaps, pocket fabric, or zippers. The material setting device has an upper plate mechanism that can clamp the lower support plate and move it along with the material setting device towards the sewing device. A lower support plate reset device is provided on the worktable, which can transfer the lower support plate from the upper plate mechanism to below the pocket folding device. This enables continuous processing.

[0004] However, the above technical solutions require a shaping block to maintain the fit between the bag opening and the accessories after folding. At the same time, since the bag folding device is fixed above the accessory feeding area, the bag opening needs to be transported to the bag folding mechanism for folding after cutting. These factors will cause the folded part of the cut bag opening to shift and wrinkle during the sewing process with accessories such as bag eyebrows, bag fabric or zippers, thus affecting the stability of product quality.

[0005] Moreover, existing bag-opening machines have the folding blade and folding device integrated, making it difficult to replace the folding blade. Utility Model Content

[0006] The purpose of this invention is to provide a bag opening folding device for a bag opening machine, which solves the problems of bag fabric shifting and wrinkling during processing in the prior art, and also solves the problem of difficulty in replacing the folding knife.

[0007] To achieve the above objectives, the technical solution of this utility model is as follows:

[0008] A bag opening folding device for a bag opening machine includes a folding mechanism and a pressing frame mechanism; the folding mechanism is disposed above the pressing frame mechanism; and a lifting plate is provided, the folding mechanism being slidably disposed on the lifting plate via a connecting plate;

[0009] The frame pressing mechanism includes a small frame and a large frame. The small frame is located above the large frame, and the large frame and the small frame are respectively provided with bag opening processing windows. The lower surface of the large frame is provided with two folding plates that cooperate with two Y-axis folding blades. The large frame is provided with a control mechanism to control the folding plates to move towards each other or away from each other.

[0010] Two bases that can open or close to each other are slidably mounted on the connecting plate of the folding mechanism. Two Y-axis folding blades are respectively mounted on the two bases. Each Y-axis folding blade includes a vertical mounting part, a horizontal bending part, and a connecting part. The connecting part protrudes outward and connects the mounting part and the bending part. The angle between the connecting part and the bending part is an acute angle of less than 70 degrees. The bending part and the connecting part are comb-shaped and are composed of evenly spaced racks. The racks and connecting parts of one Y-axis folding blade and the racks and connecting parts of the other Y-axis folding blade are staggered.

[0011] Each folding pressure plate has evenly spaced pressing teeth on one side, and the pressing teeth of the two folding pressure plates are arranged opposite each other; the rack of the bending part of the Y-axis folding knife is staggered with the pressing teeth of the folding pressure plate.

[0012] The base is connected to a tool holder, which has an outwardly protruding positioning part. The Y-axis folding knife has a positioning hole, and the Y-axis folding knife is sleeved with the positioning part on the tool holder through its positioning hole.

[0013] The base and the tool holder are separate. The bottom of the base is provided with a plug hole and a clamping device, and the top of the tool holder is provided with a protruding plug pin. The plug pin of the tool holder is inserted into the plug hole and fixed by the clamping device.

[0014] The pin has a recessed locking groove, and the clamping device includes a locking block and a locking block driving component, which can drive the locking block into the locking groove of the pin.

[0015] The locking block drive component is a cylinder, and the piston rod of the cylinder is connected to the locking block.

[0016] The base and the tool holder are integrally formed.

[0017] The advantages of this utility model are as follows: 1. When the two Y-axis folding blades are closed, the connecting parts can be inserted into each other, shortening the size of the folding blades when closed and adapting to the processing of more bag opening sizes; 2. The pressing teeth of the folding edge pressing plate and the toothed strip of the Y-axis folding blade are staggered. After the Y-axis folding blade completes the folding, the pressing teeth of the folding edge pressing plate are inserted into the gap of the toothed strip of the Y-axis folding blade to press the folding edge. After the Y-axis folding blade is withdrawn, the folding edge will not loosen or deform. Moreover, this setting can make the folding edge narrower than the folding edge of the prior art during product processing, and the bag opening is more beautiful after processing; 3. The Y-axis folding blade and the base or blade holder are set with mounting parts and mounting holes, which realizes convenient disassembly of the folding blade, greatly simplifies the folding blade replacement procedure, and improves production efficiency; 4. The base and blade holder are set separately, and blade holders of different models of folding blades can be pre-configured and installed. According to different bag fabric processing requirements, the blade holder of the appropriate model of folding blade can be quickly replaced, improving production efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the bag opening folding device of this utility model.

[0019] Figure 2 This is a schematic diagram of the Y-axis folding knife structure of this utility model.

[0020] Figure 3 This is a schematic diagram of the folding mechanism of this utility model.

[0021] Figure 4 This is a breakdown diagram of the Y-axis folding knife assembly of this utility model. Figure 1 .

[0022] Figure 5 This is a breakdown diagram of the Y-axis folding knife assembly of this utility model. Figure 2 .

[0023] Figure 6 This is a schematic diagram of the cooperation between the back edge folding plate of the large pressure frame and the Y-axis folding knife of this utility model.

[0024] Figure 7 This is a partially enlarged schematic diagram of the cooperation between the back edge folding plate of the large pressure frame and the Y-axis folding knife of this utility model.

[0025] In the diagram: 1-Lifting plate; 2-Folding mechanism; 21-Connecting plate; 22-Base; 221-Insertion hole; 222-Snap-fit ​​block; 223-Snap-fit ​​block drive component; 23-Y-axis folding knife; 231-Mounting part; 232-Connecting part; 233-Bending part; 234-Rack; 235-Mounting hole; 24-Knife holder; 241-Insertion pin; 242-Snap-fit ​​groove; 3-Pressure frame mechanism; 31-Small pressure frame; 32-Large pressure frame; 33-Folding edge pressure plate; 331-Pressure cloth teeth; 34-Processing window. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings. The drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent.

[0027] To simplify the description of this embodiment, some components that are well-known to those skilled in the art but are not related to the main content of this invention may be omitted in the accompanying drawings or description. Additionally, for ease of description, some components in the drawings may be omitted, enlarged, or reduced, but these do not represent the actual product dimensions or the complete structure.

[0028] A bag opening folding device for a bag opening machine, such as Figure 1-7 As shown, it includes a folding mechanism 2 and a pressing frame mechanism 3; the folding mechanism 2 is located on the upper part of the pressing frame mechanism 3; and a lifting plate 1 is provided, the folding mechanism 2 is slidably mounted on the lifting plate 1 through a connecting plate 21;

[0029] The frame pressing mechanism 3 includes a small frame pressing 31 and a large frame pressing 32. The small frame pressing 31 is located above the large frame pressing 32. The large frame pressing 32 and the small frame pressing 31 are respectively provided with bag opening processing windows 34. The lower surface of the large frame pressing 32 is provided with two folding plates 33 that cooperate with two Y-axis folding blades 23. The large frame pressing 32 is provided with a control mechanism to control the folding plates 33 to move towards each other or away from each other.

[0030] like Figure 1 , Figure 2 As shown, two bases 22 that can open or close to each other are slidably arranged on the connecting plate 21 of the folding mechanism 2, and two Y-axis folding blades 23 are respectively arranged on the two bases 22.

[0031] like Figure 2-5 As shown, the Y-axis folding blade 23 includes a vertical mounting portion 231, a horizontal bending portion 233, and a connecting portion 232. The connecting portion 232 protrudes outward, connecting the mounting portion 231 and the bending portion 233. The angle between the connecting portion 232 and the bending portion 233 is an acute angle less than 70 degrees. The bending portion 233 and the connecting portion 232 are comb-shaped, composed of evenly spaced racks 234. The racks 234 and connecting portions 232 of one Y-axis folding blade 23 are staggered with those of another Y-axis folding blade 23. Figure 3 As shown, when the two Y-axis folding blades 23 are closed, their connecting parts 232 and rack 234 are interlocked. Compared with the prior art, the outward protrusion of the connecting part 232 and the structure of the rack 234 make the dimension between the bending parts 233 of the two Y-axis folding blades 23 shorter when they are closed. This allows the processing window 34 to be made narrower and can accommodate more bag fabric processing sizes.

[0032] The edge-folding pressure plate 33 has evenly spaced pressing teeth 331 on one side, and the pressing teeth 331 of the two edge-folding pressure plates 33 are located on the inner and outer sides of the processing window 34. Figure 6, Figure 7 This demonstrates the positional relationship between the Y-axis folding blade 23 and the folding edge pressure plate 33 on the back of the large pressure frame 32 after the Y-axis folding blade 23 is inserted into the processing window 34. Figure 6 , Figure 7 The rack 234 of the bending part 233 of the Y-axis folding knife 23 is staggered with the pressing teeth 331 of the folding edge pressing plate 33.

[0033] After the bag fabric is cut, the folding mechanism 2 descends, and the Y-axis folding blade 23 extends into the processing window 34 through the cut of the bag fabric. Then, the two Y-axis folding blades 23 open, and the bending part 233 folds the cut edge of the bag fabric towards the edge of the processing window 34 to form a bag fabric fold. After the bag fabric fold is completed, the folding mechanism 2 rises slightly to press the bag fabric fold tightly against the lower surface of the panel of the large pressure frame 32. At the same time, the panel of the large pressure frame 32 is slightly lifted. At this time, the folding edge pressure plate 33 is activated to move towards the bag fabric fold. The pressing teeth 331 of the folding edge pressure plate 33 are inserted into the gap of the rack 234 of the bending part 233 of the Y-axis folding blade 23, taking over from the Y-axis inserting blade 23 to press the fold. The folding mechanism 2 descends, the two Y-axis folding blades 23 close, and the folding mechanism 2 rises again and exits from the processing window 34.

[0034] To achieve a perfect replacement of the folding pressure plate 33 and the Y-axis folding knife 23, the key is to slightly raise the Y-axis folding knife 23 after it completes the folding. This way, the folding pressure plate 33 will not rub against the folded edge when it moves over.

[0035] Another aspect that makes this invention more convenient than existing technologies is that the Y-axis folding blade 23 is detachable. For example... Figure 4 , Figure 5 As shown, the base 22 is connected to the tool holder 24, which is either integrally formed with or separate from the base 22.

[0036] like Figure 4 The figure shows an embodiment in which the base 22 and the tool holder 24 are integrally arranged.

[0037] The tool holder 24 is provided with an outwardly protruding positioning part 241, and the Y-axis folding knife 23 is provided with a positioning hole 235. The Y-axis folding knife 23 is sleeved with the positioning part 241 on the tool holder 24 through its positioning hole 235, and then fixed by bolts or other convenient disassembly methods.

[0038] like Figure 5 The figure shows an embodiment in which the base 22 and the tool holder 24 are set separately.

[0039] The base 22 and the tool holder 24 are separate. The bottom of the base 22 is provided with a plug hole 221 and a clamping device. The top of the tool holder 24 is provided with a protruding plug pin 242. The plug pin 242 of the tool holder 24 is inserted into the plug hole 221 and fixed by the clamping device.

[0040] Furthermore, the insertion pin 242 has a recessed snap-fit ​​groove 243, and the clamping device includes a snap-fit ​​block 222 and a snap-fit ​​block driving component 223. When the insertion pin 242 is inserted into the insertion hole 221, the snap-fit ​​block driving component 223 is activated, driving the snap-fit ​​block 222 to snap into the snap-fit ​​groove 243 of the insertion pin 242, thereby fixing the tool holder 24.

[0041] The locking block drive component 223 is usually a cylinder, and the piston rod of the cylinder is connected to the locking block 222.

[0042] The base 22 and the tool holder 24 are integrated, making it much more convenient, faster, and cheaper to replace the Y-axis folding blade 23 compared to existing technologies. The advantage of separating the base 22 and the tool holder 24 is that tool holders 24 with different models of Y-axis folding blades 23 can be prepared in advance. The tool holder 24 can be directly replaced according to the required bag fabric size, which is more convenient and efficient than directly replacing the folding blade.

[0043] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. All equivalent changes and modifications made within the scope of the claims of this utility model should be considered within the technical scope of this utility model.

Claims

1. A bag opening folding device for a bag opening machine, comprising a folding mechanism (2) and a frame pressing mechanism (3); the folding mechanism (2) is disposed on the upper part of the frame pressing mechanism (3); and a lifting plate (1) is provided, wherein the folding mechanism (2) is slidably disposed on the lifting plate (1) via a connecting plate (21); The frame pressing mechanism (3) includes a small frame pressing (31) and a large frame pressing (32). The small frame pressing (31) is located above the large frame pressing (32). The large frame pressing (32) and the small frame pressing (31) are respectively provided with bag opening processing windows (34). The lower surface of the large frame pressing (32) is provided with two folding plates (33) that cooperate with two Y-axis folding knives (23). The large frame pressing (32) is provided with a control mechanism to control the folding plates (33) to move towards each other or away from each other. Its features are: Two bases (22) that can open or close to each other are slidably arranged on the connecting plate (21) of the folding mechanism (2). Two Y-axis folding blades (23) are respectively arranged on the two bases (22). The Y-axis folding blade (23) includes a vertical mounting part (231), a horizontal bending part (233) and a connecting part (232). The connecting part (232) protrudes outward and connects the mounting part (231) and the bending part (233). The angle between the connecting part (232) and the bending part (233) is an acute angle of less than 70 degrees. The bending part (233) and the connecting part (232) are comb-shaped and are composed of evenly spaced racks (234). The racks (234) and connecting parts (232) of one Y-axis folding blade (23) and the racks (234) and connecting parts (232) of the other Y-axis folding blade (23) are staggered. Each folding pressure plate (33) has evenly spaced pressing teeth (331) on one side, and the pressing teeth (331) of the two folding pressure plates (33) are arranged opposite to each other; the rack (234) of the bending part (233) of the Y-axis folding knife (23) is staggered with the pressing teeth (331) of the folding pressure plate (33); The base (22) is connected to the tool holder (24), the tool holder (24) is provided with an outwardly protruding positioning part (241), the Y-axis folding knife (23) is provided with a positioning hole (235), and the Y-axis folding knife (23) is sleeved with the positioning part (241) on the tool holder (24) through its positioning hole (235).

2. The bag opening folding device according to claim 1, characterized in that: The base (22) and the tool holder (24) are set separately. The bottom of the base (22) is provided with a plug hole (221) and a clamping device. The top of the tool holder (24) is provided with a protruding plug pin (242). The plug pin (242) of the tool holder (24) is inserted into the plug hole (221) and fixed by the clamping device.

3. The bag opening folding device according to claim 2, characterized in that: The insertion pin (242) has a recessed snap-fit ​​groove (243), and the clamping device includes a snap-fit ​​block (222) and a snap-fit ​​block driving component (223), which can drive the snap-fit ​​block (222) into the snap-fit ​​groove (243) of the insertion pin (242).

4. The bag opening folding device according to claim 3, characterized in that: The locking block drive component (223) is a cylinder, and the piston rod of the cylinder is connected to the locking block (222).

5. The bag opening folding device according to claim 1, characterized in that: The base (22) and the tool holder (24) are integrally formed.

Images