An automatic feeding device for clothing processing fabrics

By introducing a guide mechanism on the folding machine, the triangular structure of the fixing plate, guide roller and limiting part is used to solve the problems of unstable fixing and cumbersome disassembly of the guide roller, which is achieved to improve the stability of the folding fabric and the rapid disassembly efficiency of the rapid assembly.

CN119774358BActive Publication Date: 2025-08-05DANDONG FOREMART GARMENTS CO LTD
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Patent Information

Application Number
CN202510293554.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-03-13
Publication Date
2025-08-05
Estimated Expiration
2045-03-13

AI Technical Summary

Technical Problem

The guide rollers on existing folding machines are unstable in fixing, which are prone to displacement due to vibration or changes in fabric tension, affecting the quality of the folding fabric, and the disassembly and installation process is cumbersome and time-consuming.

Method used

The guide mechanism provided on the equipment frame is adopted, including a fixing plate, a guide roller, a limiting portion and a locking portion, and the stability of the guide roller is improved through the triangular structure, and the rapid disassembly and assembly is achieved through the cooperation of the fixing portion and the connecting portion.

Benefits of technology

Improves the stability and quality of fabric folding, simplifies the disassembly and assembly process, and reduces maintenance time and cost.

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Abstract

The present invention relates to the technical field of automatic feeding, and particularly relates to an automatic feeding device for clothing processing fabrics; it includes an equipment frame; the equipment frame has a U-shaped structure, and two tension rollers are rotatably installed between the two vertical sections of the equipment frame, and the two tension rollers are vertically misaligned; a guiding mechanism for guiding the fabric to be folded in half is arranged on the left side of the equipment frame; the guiding mechanism of the present invention realizes the quick disassembly and assembly of the base and the fixed seat through the fixing part, so as to reduce the time and cost of subsequent maintenance, and through the fixing part, the base and the fixed seat are restricted and limited, and with the cooperation of the connecting part and the locking part, the stability of the guiding roller and the limiting roller is improved, thereby improving the quality of fabric folding and subsequent cutting.
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Description

Technical Field

[0001] The invention relates to the technical field of automatic feeding, in particular to an automatic feeding device for garment processing fabrics. Background Art

[0002] Garment processing fabrics are the basic materials for making ready-made clothes. They not only determine the appearance and feel of the clothes, but also affect the wearing comfort, durability and care methods. In the process of making clothing fabrics into ready-made clothes, they need to be cut into the required size. Before cutting, they usually need to be inspected and wrinkle-removed by a cloth inspection machine, and then folded in half and rolled up by a cloth folding machine to reduce the occupied space and cutting range.

[0003] However, the following problems currently exist in the process of folding and rolling fabrics on a folding machine: the multiple guide rollers on existing folding machines are usually fixed directly by bolts, and there is no related support between the guide rollers, resulting in insufficient stability during the processing process. They are easily displaced or shaken due to vibration or changes in fabric tension, thereby affecting the quality of the fabric folding. Secondly, the multiple guide rollers are directly fixed by bolts, and they need to be operated one by one during disassembly and installation, which is a cumbersome and time-consuming process. Summary of the Invention

[0004] In view of the above problems, an embodiment of the present application provides an automatic feeding device for garment processing fabrics to solve the above-mentioned technical problems.

[0005] In order to achieve the above-mentioned purpose, the embodiment of the present application provides the following technical solution: The embodiment of the present application provides an automatic feeding device for clothing processing fabrics, including an equipment frame; the equipment frame is a U-shaped structure, and two tensioning rollers with upper and lower staggered distributions are rotatably installed between the two vertical sections of the equipment frame, and a guide mechanism for guiding the fabric to fold in half is provided on the left side of the equipment frame.

[0006] The guiding mechanism includes a fixed plate, a fixed plate is fixedly installed on the left end of the equipment frame, two guide rollers are provided on the upper left side of the fixed plate, the two guide rollers form an eight-shaped structure, and the guide rollers are inclined downward from right to left, and a base is rotatably installed on the right end of the guide roller, and two support columns that are symmetrical front and back and slide through the fixed plate are fixedly installed on the right end of the base, and a limiting part is provided on the lower left side of the fixed plate for limiting the fitting of the folded fabric.

[0007] The base and the limiting portion are both fixedly connected to the fixing plate via the fixing portion, and the base and the limiting portion limit each other.

[0008] The two guide rollers are commonly provided with a connecting portion, and the connecting portion is provided with a locking portion that cooperates with the limiting portion and the fixing portion to improve the stability of the guide rollers and the limiting portion.

[0009] The guiding roller, the limiting part, the fixing part and the connecting part form multiple triangular structures to improve the overall stability of the guiding mechanism.

[0010] As a preferred solution, the limiting part includes a fixed seat. Two fixed seats are symmetrically arranged front and back on the left side of the fixed plate. Two symmetrically arranged limiting rollers are rotatably installed at the left end of the fixed seat. A connecting plate is rotatably installed at the common left end of the two limiting rollers on the same fixed seat. Fixed columns that slide through the fixed plate are symmetrically fixed and installed up and down at the right end of the fixed seat.

[0011] As a preferred solution, the fixing part includes sliders. Two symmetrically arranged sliders are slidably installed front and back between the two bases at the left end of the fixed plate. Limiting columns are symmetrically fixed and installed up and down at the opposite ends of the two sliders. Limiting holes corresponding to the limiting columns are provided at the relative ends of the two bases. A restricting member for restricting the movement of the corresponding fixed seat and slider is provided between the two fixed seats and between the slider and the fixed seat.

[0012] As a preferred solution, the restricting member includes connecting rods. Two symmetrically arranged connecting rods are provided on the left side of the fixed plate. The upper part of the rear connecting rod is rotatably connected to the rear slider. A shaft column that slides through the rear connecting rod is fixedly installed on the rear fixed seat. The lower part of the front connecting rod is rotatably connected to the front fixed seat. The front connecting rod and the front slider are fixedly connected to the fixed plate by bolts. A limiting groove is provided on the front end face of the rear fixed seat. A pressing block that cooperates with the limiting groove and presses the rear fixed seat is fixedly installed at the rear of the front fixed seat.

[0013] As a preferred solution, the connecting part includes a connecting rod. A connecting rod is rotatably installed at the common left end of the guiding rollers. The connecting rod has a V-shaped structure. A supporting rod is hinged to the lower surface of the connecting rod. One end of the supporting rod away from the connecting rod is hinged to a bottom plate. Positioning members for restricting the movement of the bottom plate and the connecting rod are provided on the fixed plate.

[0014] As a preferred solution, the locking part includes shaft rods. Two symmetrically arranged shaft rods slide through the bottom plate. The lower ends of the shaft rods slide through to the corresponding fixed seats. A first connecting plate is fixedly installed at the common upper ends of the shaft rods. A first tension spring is fixedly installed between the first connecting plate and the bottom plate.

[0015] As a preferred solution, the positioning member includes a second tension spring. A second connecting plate is fixedly installed at the right end of the fixed plate through the second tension spring. Two symmetrically arranged inserting rods are fixedly installed at the left end of the second connecting plate. The left ends of the inserting rods slide through the fixed plate, the connecting rod and the bottom plate in sequence.

[0016] One or more of the above technical solutions in the embodiments of the present invention have at least one of the following technical effects: First, the guiding mechanism of the present invention realizes the quick disassembly and assembly of the base and the fixing seat through the fixing part, so as to reduce the time and cost of subsequent maintenance. Moreover, through the fixing part, the base and the fixing seat are restricted and limited, and with the cooperation of the connecting part and the locking part, the stability of the guiding roller and the limiting roller is improved, thereby improving the quality of fabric folding and subsequent cutting.

[0017] Second, the present invention first installs the rear base through the fixing part, and then sequentially installs the fixing seat and the remaining bases in the counterclockwise direction, so that the latter restricts the movement of the former, thereby making the base and the fixing seat restrict and limit each other to improve the stability of the guiding roller and the limiting roller. Then, through the connecting part, the two guiding rollers are combined into an integral body, and the movement of the fixing seat is restricted by the locking member, thereby further improving the overall stability of the guiding mechanism.

[0018] Third, the present invention sequentially installs the base and the fixing seat in order, and finally fixes the corresponding connecting rod and slider through bolts, and through the cooperation of the locking part and the positioning member, the overall fixing of the guiding mechanism is achieved, thus facilitating its disassembly and assembly, and further reducing the subsequent maintenance time and cost.

[0019] The additional aspects and advantages of the present invention will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0021] Figure 1 It is a schematic three-dimensional structure diagram of the present invention.

[0022] Figure 2 It is a schematic structural diagram of the positioning member of the present invention.

[0023] Figure 3 It is a schematic structural diagram of the restricting member of the present invention.

[0024] Figure 4 It is a schematic structural diagram of the connecting part of the present invention.

[0025] Figure 5 For Figure 4 The enlarged view of the structure at A in

[0026] Reference numerals: 10, equipment rack; 11, tensioning roller; 2, guiding mechanism; 20, fixing plate; 21, guiding roller; 22, base; 23, support column; 24, limiting part; 240, fixing seat; 241, limiting roller; 242, connecting plate; 243, fixing column; 25, fixing part; 250, slider; 251, limiting column; 3, restricting part; 30, connecting rod; 31, shaft column; 32, bolt; 33, pressing block; 26, connecting part; 260, connecting rod; 261, support rod; 262, bottom plate; 4, positioning part; 40, second tension spring; 41, second connecting plate; 42, inserting rod; 27, locking part; 270, shaft rod; 271, first connecting plate; 272, first tension spring. Detailed implementation manners

[0027] To make the above objects, features, and advantages of the present invention more apparent and understandable, the following will describe the detailed implementation manners of the present invention in conjunction with the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0028] As Figure 1 and Figure 2 shown, an automatic feeding device for clothing processing fabrics includes an equipment rack 10; the equipment rack 10 has a U-shaped structure, and two tensioning rollers 11 are rotatably installed between the two vertical sections of the equipment rack 10 and are distributed vertically and offset from each other. A guiding mechanism 2 for guiding the fabric to be folded in half is provided on the left side of the equipment rack 10.

[0029] As Figure 1 , Figure 2 and Figure 3 shown, the guiding mechanism 2 includes a fixing plate 20. The fixing plate 20 is fixedly installed at the left end of the equipment rack 10. Two guiding rollers 21 are provided at the upper left side of the fixing plate 20. The two guiding rollers 21 form an inverted V-shaped structure, and the guiding rollers 21 are inclined downward from right to left. The right end of the guiding roller 21 is rotatably installed with a base 22. The right end of the base 22 is fixedly installed with two support columns 23 that are symmetrically arranged front and rear and slide through the fixing plate 20. A limiting part 24 for limiting and fitting the folded fabric is provided at the lower left side of the fixing plate 20.

[0030] As Figure 1As shown, the base 22 and the limiting part 24 are both fixedly connected to the fixing plate 20 through the fixing part 25, and the base 22 and the limiting part 24 limit each other; a connecting part 26 is provided on the two guiding rollers 21 together, and a locking part 27 is provided on the connecting part 26 for cooperating with the limiting part 24 and the fixing part 25 to improve the stability of the guiding roller 21 and the limiting part 24; the guiding roller 21, the limiting part 24, the fixing part 25 and the connecting part 26 form multiple triangular structures for improving the overall stability of the guiding mechanism 2.

[0031] During specific operation, first, the operator installs the base 22 with the guiding roller 21 at the rear side, making the support column 23 on the base 22 penetrate through the fixing plate 20, and then installs the limiting part 24, the front base 22 and the connecting part 26 in sequence, so that the latter restricts the movement of the former, realizing the mutual restriction between the base 22 and the limiting part 24, thereby improving the overall stability of the guiding mechanism 2.

[0032] Through the connecting part 26 and the locking part 27, the movement of the limiting part 24 and the base 22 can be further restricted to further improve the stability of the guiding mechanism 2, and further ensure the quality of the fabric folding.

[0033] After installation, the fabric first passes through the tension roller 11 to the upper surface of the guiding roller 21, and the fabric is folded in half through the eight-shaped structure formed by the guiding rollers 21. The folded fabric then passes through the limiting part 24 and is connected to the existing winding machine. When the subsequent winding machine rotates, it will pull the fabric to move and be folded and wound. At this time, the device cooperates with the external cutting mechanism to pull out the folded and wound fabric for feeding and cutting to cut out the fabric of the required size.

[0034] As Figure 1 、 Figure 2 、 Figure 3 and Figure 4 shown, the limiting part 24 includes a fixed seat 240. Two fixed seats 240 are symmetrically arranged at the front and rear on the left side of the fixing plate 20. Two symmetrically arranged limiting rollers 241 are rotatably installed at the left end of the fixed seat 240. A connecting plate 242 is rotatably installed at the left ends of the two limiting rollers 241 on the same fixed seat 240. Fixed columns 243 that slide through the fixing plate 20 are symmetrically fixed and installed at the right end of the fixed seat 240.

[0035] As Figure 1 、 Figure 3 、 Figure 4 and Figure 5As shown, the fixing part 25 includes sliders 250. Two symmetric sliders 250 are installed on the left end of the fixing plate 20 and slide back and forth between two bases 22. Limit columns 251 are symmetrically fixed on the opposite ends of the two sliders 250 in the up-and-down direction. Limit holes corresponding to the limit columns 251 are provided on the opposite ends of the two bases 22. A restricting member 3 is provided between the two fixing seats 240 and between the slider 250 and the fixing seat 240 to restrict the movement of the corresponding fixing seat 240 and slider 250.

[0036] As Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, the restricting member 3 includes a connecting rod 30. Two symmetric connecting rods 30 are provided on the left side of the fixing plate 20. The upper part of the rear connecting rod 30 is rotatably connected to the rear slider 250. A shaft column 31 that slidably penetrates the rear connecting rod 30 is fixedly installed on the rear fixing seat 240. The lower part of the front connecting rod 30 is rotatably connected to the front fixing seat 240. The front connecting rod 30 and the front slider 250 are fixedly connected to the fixing plate 20 by a bolt 32. A limiting groove is provided on the front end face of the rear fixing seat 240. A pressing block 33 that cooperates with the limiting groove and presses the rear fixing seat 240 is fixedly installed at the rear of the front fixing seat 240.

[0037] During specific operation, after the support column 23 on the rear base 22 penetrates the fixing plate 20, the rear slider 250 is pushed to move, so that the corresponding limit column 251 is inserted into the limit hole on the rear base 22 to limit the movement of the rear base 22. Then, the rear connecting rod 30 is toggled to move to the corresponding position, and then the rear fixing seat 240 is installed. The rear fixing seat 240 penetrates the fixing plate 20 through the corresponding fixing column 243, and at the same time, the shaft column 31 penetrates the rear connecting rod 30 to limit the movement of the connecting rod 30, so that the rear base 22 is kept in a fixed state.

[0038] After that, the front fixing seat 240 is installed. The pressing block 33 on the front fixing seat 240 will snap into the limiting groove and push the rear fixing seat 240 to keep the rear fixing seat 240 in a fixed state. Then, the front base 22 is installed, and the corresponding limit column 251 is inserted into the corresponding limit hole. After that, the front connecting rod 30 is moved so that the upper end of the front connecting rod 30 moves onto the front slider 250, and then the bolt 32 penetrates the connecting rod 30 and the slider 250 and is fixed on the fixing plate 20 to fix the front fixing seat 240 and the front base 22. In this way, the bases 22 and the fixing seats 240 are restricted from each other in sequence, thereby improving the overall stability of the guiding mechanism 2.

[0039] As Figure 1 , Figure 2 and Figure 4As shown, the connecting portion 26 includes a connecting rod 260. The left ends of the guiding rollers 21 are jointly and rotatably installed with the connecting rod 260. The connecting rod 260 has a V-shaped structure. A supporting rod 261 is hinged to the lower surface of the connecting rod 260. One end of the supporting rod 261 away from the connecting rod 260 is hinged to a bottom plate 262. A positioning member 4 for restricting the movement of the bottom plate 262 and the connecting rod 30 is provided on the fixing plate 20.

[0040] As Figure 1 , Figure 3 , Figure 4 and Figure 5 shown, the locking portion 27 includes a shaft rod 270. Two symmetrically arranged shaft rods 270 penetrate through the bottom plate 262 in a sliding manner. The lower ends of the shaft rods 270 penetrate through to the corresponding fixing seats 240 in a sliding manner. A first connecting plate 271 is fixedly installed at the upper ends of the shaft rods 270. A first tension spring 272 is fixedly installed between the first connecting plate 271 and the bottom plate 262.

[0041] As Figure 1 , Figure 2 and Figure 3 shown, the positioning member 4 includes a second tension spring 40. The right end of the fixing plate 20 is fixedly installed with a second connecting plate 41 through the second tension spring 40. Two symmetrically arranged inserting rods 42 are fixedly installed at the left end of the second connecting plate 41. The left ends of the inserting rods 42 penetrate through the fixing plate 20, the connecting rod 30, and the bottom plate 262 in sequence in a sliding manner.

[0042] During specific operation, the connecting rod 260 connects the two guiding rollers 21 into a whole, improving the stability of the guiding rollers 21 during operation. Moreover, the connecting rod 260 can support during the process of the fabric moving downward and folding in half, and the surface of the connecting rod 260 is an arc surface to avoid scratching the fabric.

[0043] First, manually pull the first connecting plate 271 to stretch the first tension spring 272. Then, move the bottom plate 262 to the corresponding position. During the movement of the bottom plate 262, it will contact the inserting rod 42 to push and squeeze the inserting rod 42 to move and stretch the second tension spring 40 at the same time. After the bottom plate 262 moves in place, the inserting rod 42 moves through the bottom plate 262 under the action of the second tension spring 40 to restrict the movement of the bottom plate 262. Then, release the first connecting plate 271. Under the action of the first tension spring 272, the shaft rod 270 is inserted into the corresponding fixing seat 240 to further restrict the movement of the fixing seat 240, thereby further improving the stability of the guiding mechanism 2.

[0044] When disassembly and maintenance are required, pull the shaft rod 270 out of the fixing seat 240, and pull the inserting rod 42 out of the bottom plate 262. Then, move the bottom plate 262 away from the fixing plate 20. Then, remove the bolt 32, and then disassemble the base 22 and the fixing seat 240 in sequence. Thus, this operation improves the disassembly and assembly efficiency of the guiding mechanism 2 and reduces the maintenance time and maintenance cost.

[0045] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom", etc. is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the protection scope of the present invention; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0046] In addition, the terms "first", "second", "No. 1", "No. 2" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "No. 1", "No. 2" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0047] In the description of the present invention, it should also be noted that unless otherwise clearly specified and defined, the terms "arranged", "connected", "installed", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] The embodiments of this specific implementation manner are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. An automatic feeding device for garment processing fabrics, comprising a device frame; characterized in that: The equipment frame is of a U-shaped structure, with two tension rollers staggered vertically and rotatably mounted between the two vertical sections of the equipment frame. A guide mechanism for guiding the fabric to fold in half is provided on the left side of the equipment frame; wherein: The guide mechanism includes a fixed plate, the left end of the equipment frame is fixedly installed with the fixed plate, the upper left part of the fixed plate is provided with two guide rollers, the two guide rollers form an eight-shaped structure, and the guide rollers are inclined downward from right to left, the right end of the guide roller is rotatably installed with a base, the right end of the base is fixedly installed with two support columns that are symmetrical front and back and slide through the fixed plate, and the lower left part of the fixed plate is provided with a limiting part for limiting the position and fitting of the folded fabric; The base and the limiting portion are both fixedly connected to the fixing plate via the fixing portion, and the base and the limiting portion limit each other; The two guide rollers are provided with a connecting portion, and the connecting portion is provided with a locking portion that cooperates with the limiting portion and the fixing portion to improve the stability of the guide rollers and the limiting portion; The guide rollers, the limiting portion, the fixing portion and the connecting portion form a plurality of triangular structures to improve the overall stability of the guide mechanism; The limiting portion includes a fixing seat; The connecting portion includes a connecting rod, a support rod is hingedly connected to the lower surface of the connecting rod, and an end of the support rod away from the connecting rod is hingedly connected to the bottom plate; The locking portion includes a shaft rod, and two shaft rods are symmetrically arranged on the bottom plate for sliding through. The lower ends of the shaft rods slide through corresponding fixing seats, and the upper ends of the shaft rods are fixedly mounted with a No. 1 connecting plate. A No. 1 tension spring is fixedly mounted between the No. 1 connecting plate and the bottom plate. The left end of the guide roller is jointly rotatably mounted with a connecting rod, the connecting rod is in a V-shaped structure, and a positioning member for limiting the movement of the bottom plate and the connecting rod is provided on the fixed plate; The positioning member includes a No. 2 tension spring, and the right end of the fixed plate is fixedly installed with a No. 2 connecting plate through the No. 2 tension spring. The left end of the No. 2 connecting plate is fixedly installed with two front-to-back symmetrical plug rods, and the left ends of the plug rods slide through the fixed plate, connecting rod and bottom plate in sequence.

2. The automatic feeding device for garment processing fabrics according to claim 1, characterized in that: Two fixed seats are symmetrically arranged on the left side of the fixed plate. Two upper and lower symmetrical limiting rollers are rotatably installed on the left end of the fixed seat. The left ends of the two limiting rollers on the same fixed seat are jointly rotatably installed with a connecting plate. The right end of the fixed seat is symmetrically fixed with a fixing column that slides through the fixed plate.

3. The automatic feeding device for garment processing fabrics according to claim 2, characterized in that: The fixing part includes a slider, and the left end of the fixing plate is located between the two bases and is provided with two front-to-back symmetrical sliders for sliding back and forth. The opposite ends of the two sliders are symmetrically fixed with limit columns, and the opposite ends of the two bases are provided with limit holes that correspond one-to-one with the limit columns. A restraining member for limiting the movement of the corresponding fixing seat and slider is provided between the two fixing seats and between the slider and the fixing seat.

4. The automatic feeding device for garment processing fabrics according to claim 3, characterized in that: The restraining member includes a connecting rod, and two front-to-rear symmetrical connecting rods are provided on the left side of the fixed plate. The upper part of the rear connecting rod is rotatably connected to the rear slider, and an axle column sliding through the rear connecting rod is fixedly installed on the rear fixed seat. The lower part of the front connecting rod is rotatably connected to the front fixed seat, and the front connecting rod and the front slider are fixedly connected to the fixed plate by bolts. A limiting groove is provided on the front end surface of the rear fixed seat, and a pressure block that cooperates with the limiting groove and squeezes the rear fixed seat is fixedly installed on the rear end of the front fixed seat.

Citation Information

Patent Citations

  • Double-width folding machine

    CN221165259U