Wrapping cloth conveying device and packaging machine

Abstract

A wrapping cloth conveying device and a packaging machine. The wrapping cloth conveying device comprises: a plurality of conveying devices (200), spaced apart on a frame (100) in a height direction. Each conveying device (200) comprises a support (110) arranged on the frame (100); a first clamp (230), slidably arranged on the support (110), wherein the first clamp (230) moves toward or away from a wrapping cloth roll (300) when sliding; and a second clamp (240), slidably arranged on the support (110), wherein the second clamp (240) moves toward or away from the packaging machine when sliding. A conveying space (250) is formed between the second clamp (240) and the first clamp (230). The conveying space (250) is used for allowing a wrapping cloth to pass through. The wrapping cloth conveying device solves the problem in the prior art of low efficiency of wrapping cloth conveying devices.

Description

A fabric conveying device and a packing machine Technical Field

[0001] This invention relates to the field of packing machine conveying technology, specifically to a cloth-wrapping conveying device and a packing machine. Background Technology

[0002] The baling cloth of chemical fiber baling machines typically has two sides: one coated with a waterproof film and the other with a UV-resistant film. The upper baling cloth must be laid with the waterproof side facing down, and the lower baling cloth must also be laid with the waterproof side facing down. Previous baling conveyor designs lacked uniformity and standardization. Different parts employed various structural combinations, requiring multiple processes and components during manufacturing, increasing manufacturing difficulty and cost. Furthermore, due to the complex and diverse structure, maintenance personnel needed to be familiar with various structural principles, expending significant time and effort to troubleshoot, resulting in high maintenance costs.

[0003] Existing technologies also employ a single fabric conveying mechanism, which makes the device's structural design extremely complex. Furthermore, the low efficiency and complex structure of these fabric conveying devices are increasingly failing to meet demands. High-volume baling machines require efficient, stable, and easy-to-operate fabric conveying devices. However, current devices, due to structural limitations, are time-consuming and labor-intensive in handling fabric flipping and laying, failing to achieve rapid and accurate fabric laying operations. This makes them ill-suited to the baling needs of large-scale chemical fiber production processes, becoming one of the bottleneck factors restricting the improvement of production efficiency and the large-scale development of the chemical fiber industry. Summary of the Invention

[0004] This invention proposes a fabric conveying device and a packaging machine, which solves the problem of low efficiency in fabric conveying devices in related technologies.

[0005] The technical solution of the present invention is as follows: A fabric covering conveying device is used to convey the fabric covering roll on a fabric covering roll frame to a packing machine, wherein the fabric covering roll is divided into an upper fabric covering roll and a lower fabric covering roll, and the fabric covering is divided into an upper fabric covering roll and a lower fabric covering roll, comprising: a bracket, disposed on one side of the fabric covering roll, the packing machine being located on the side of the bracket adjacent to the fabric covering roll; two conveying devices, spaced apart along the height direction on the bracket, the two conveying devices being used to convey the upper fabric covering roll and the lower fabric covering roll respectively, each conveying device comprising: a support frame, disposed on the support frame; a first clamp, slidably disposed on the support frame, the first clamp being used to clamp the front end of the fabric covering roll, the first clamp sliding towards or away from the fabric covering roll; a second clamp, slidably disposed on the support frame, the second clamp sliding towards or away from the packing machine, a conveying space between the second clamp and the first clamp, the conveying space being used for the fabric covering roll to pass through.

[0006] Optionally, the height of the fabric roll is lower than the first clamp, and the conveying device further includes: a guide roller, rotatably mounted on the bracket, the guide roller being located on one side of the conveying space, the guide roller being used to guide the fabric roll to the conveying space; and two limiting plates, both mounted on the bracket, both limiting plates being located on the side of the guide roller closer to the conveying space, the two limiting plates forming a limiting space, the fabric entering the conveying space after passing through the limiting space.

[0007] Optionally, it further includes: a cutting blade, which is raised and lowered on the bracket. The cutting blade moves closer to or away from the conveying space after being raised and lowered. The cutting blade is located between the limiting space and the conveying space. The cutting blade is used to cut the covering fabric.

[0008] Optionally, the second clamp includes: a sliding frame slidably disposed on the support frame, the sliding frame being located above the first clamp; and four second grippers, all disposed on the sliding frame, the four second grippers being used to clamp the four corners of the fabric within the conveying space.

[0009] Optionally, it further includes: two fixed grippers disposed on the support frame, the second clamp sliding closer to or further away from the fixed grippers, the fixed grippers being used to clamp the two ends of one side of the fabric within the conveying space; the second clamp includes: a sliding frame slidably disposed on the support frame, the sliding frame being located above the first clamp; two second grippers, both disposed on the sliding frame, the second grippers sliding closer to or further away from the fixed grippers, the two second grippers and the two fixed grippers being used to clamp the four corners of the fabric within the conveying space.

[0010] Optionally, the conveying device has two components, with the guide rollers and the limiting plate of the two conveying devices located on opposite sides of the two conveying spaces, and the upper fabric roll and the lower fabric roll located on the side of the limiting plate away from the conveying space.

[0011] Optionally, the limiting plate has a notch on the side near the conveying space, and the notches of the two limiting plates are connected, so that the first clamp can slide into or out of the notch.

[0012] Optionally, it further includes: a lifting plate, which is lifted and lowered on the bracket, and the lifting plate moves closer to or away from the conveying space after being lifted and lowered, and the lifting plate is located between the guide roller and the limiting plate; and a fixing plate, which is disposed on the bracket, and the fixing plate is located above the lifting plate, and the lifting plate abuts against the fixing plate after being lifted and lowered, and the lifting plate and the fixing plate are used to clamp or loosen the fabric.

[0013] Optionally, it further includes: a one-way valve plate, having several groups, all of which are disposed on the limiting plate, and the several groups of one-way valve plates are linearly distributed along the sliding direction of the second clamp. The one-way valve plate is used to prevent the front end of the wrapping fabric from moving away from the conveying space. Each group of one-way valve plates has two elastic plates, each of which has a first end and a second end. The first ends of the two elastic plates are respectively disposed on the two limiting plates, and the second ends of the two elastic plates abut against each other, with the second end being closer to the conveying space than the first end.

[0014] A packaging machine includes the cloth conveying device and further includes: a packaging device disposed on one side of the support, wherein the cloth conveying device is used to convey cloth to the packaging device, and a second clamp slides to move closer to or away from the packaging device.

[0015] The working principle and beneficial effects of this invention are as follows: In this invention, the support frame provides stable support for the first and second conveying devices. The first clamp can precisely control the length of the fabric being pulled out, thereby ensuring the dimensional accuracy of each fabric wrapping and improving product consistency and quality. The first and second conveying devices have identical structures, simplifying the overall device structure and reducing manufacturing and maintenance costs. At the same time, the identical structure also facilitates operator learning and mastery, improving operational convenience and versatility.

[0016] Both the first and second conveying devices have a support frame, a first clamp, and a second clamp. The support frame provides stable support for the clamps, ensuring their stability during sliding and operation, and reducing dimensional errors and conveying malfunctions caused by shaking or instability. Both the first and second clamps are slidably mounted on the support frame. The first clamp is used to clamp the front end of the fabric roll, pulling a fixed length of fabric from the roll by sliding, allowing part of the fabric to lie within the conveying space. The sliding amount of the first clamp allows for precise control of the length of fabric pulled out, ensuring dimensional accuracy for each wrap and improving product consistency and quality. The first and second clamps have clearly defined functions, respectively responsible for controlling dimensions and conveying, making the fabric wrapping process clearer and more orderly, reducing operational complexity and error rates. Attached Figure Description

[0017] The preferred embodiments will now be described in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages, and implementation methods of the present invention.

[0018] Figure 1 is a schematic diagram of Embodiment Six of the present invention; Figure 2 is a schematic diagram of the structure of Embodiment One of the present invention; Figure 3 is an enlarged schematic diagram of the structure at point A in Figure 2 of the present invention; Figure 4 is a schematic diagram of the structure of Embodiment Two of the present invention; Figure 5 is an enlarged schematic diagram of the structure at point D in Figure 4 of the present invention; Figure 6 is a schematic diagram of the structure of Embodiment Three of the present invention; Figure 7 is an enlarged schematic diagram of the structure at point E in Figure 6 of the present invention; Figure 8 is an enlarged schematic diagram of the structure at point B in Figure 1 of the present invention; Figure 9 is a schematic diagram of the structure of Embodiment Five of the present invention; Figure 10 is an enlarged schematic diagram of the structure at point C in Figure 9 of the present invention.

[0019] In the diagram: 100, bracket; 200, conveying device; 210, first conveying device; 220, second conveying device; 110, support frame; 230, first clamp; 300, fabric roll; 240, second clamp; 250, conveying space; 260, guide roller; 270, limiting plate; 280, limiting space; 400, cutting blade; 241, sliding frame; 242, second gripper; 290, fixed gripper; 271, notch; 500, lifting plate; 600, fixed plate; 700, one-way valve plate; 710, elastic plate; 711, first end; 712, second end. Detailed Implementation

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0021] To keep the drawings concise, each drawing only schematically shows the parts relevant to the invention; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0022] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0023] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] Example 1 Referring to Figures 1-9, this is the first embodiment of the present invention, which proposes a fabric conveying device, including a conveying device 200. The system comprises two conveying devices 200, spaced apart along the height direction on the support 100. The two conveying devices 200 are a first conveying device 210 and a second conveying device 220, which are structurally identical. The first conveying device 210 is mounted on the support 100 and is used to convey the upper covering fabric. The second conveying device 220 is mounted on the support 100, located below the first conveying device 210, and is used to convey the lower covering fabric. Both the first and second conveying devices 210 and 220 have the same structure. Each includes: a support frame 110 mounted on the support 100; a first clamp 230 slidably mounted on the support 100, which moves closer to or away from the covering fabric roll 300 after sliding; and a second clamp 240 slidably mounted on the support 100, which moves closer to or away from the packaging machine after sliding. A conveying space 250 is provided between the second clamp 240 and the first clamp 230 for the covering fabric to pass through.

[0025] In the above scheme, the support frame 100 provides stable support for the first conveying device 210 and the second conveying device 220. The first clamp 230 can precisely control the length of the fabric pulled out, thereby ensuring the dimensional accuracy of each fabric wrapping and improving product consistency and quality. The first conveying device 210 and the second conveying device 220 have the same structure, which simplifies the overall structure of the device and reduces manufacturing and maintenance costs. At the same time, the identical structure also facilitates the learning and mastery of operators, improving the convenience and versatility of operation.

[0026] Both the first conveying device 210 and the second conveying device 220 have a support frame 110, a first clamp 230, and a second clamp 240. The support frame 110 provides stable support for the clamps, ensuring the stability of the first clamp 230 and the second clamp 240 during sliding and operation, and reducing dimensional errors and conveying failures caused by shaking or instability. The first clamp 230 and the second clamp 240 are slidably mounted on the support frame 110. The first clamp 230 is used to clamp the front end of the fabric wrapping, pulling a fixed length of fabric from the fabric wrapping roll 300 by sliding, allowing part of the fabric to be within the conveying space 250. The sliding amount of the first clamp 230 allows for precise control of the length of fabric pulled out, thereby ensuring the dimensional accuracy of each wrapping and improving product consistency and quality. The first clamp 230 and the second clamp 240 have clearly defined functions, respectively responsible for controlling dimensions and conveying, making the fabric wrapping process clearer and more orderly, reducing operational complexity and error rates.

[0027] In practical use, the first clamp 230 first clamps the front end of the fabric roll 300. The first clamp 230 then pulls a fixed length of fabric from the fabric roll 300 by sliding. The second clamp 240 clamps the fabric, and the fabric is cut using a cutting device. The first clamp 230 then releases the fabric, and the second clamp 240 slides to convey the fabric. The first clamp 230 and the second clamp 240 are used to control the size and conveying of the fabric, which not only improves the dimensional accuracy of each fabric wrap but also simplifies the overall structure.

[0028] It should be further explained that the front end of the covering fabric refers to the end of the covering fabric that extends out of the covering fabric roll 300 and is away from the covering fabric roll.

[0029] Furthermore, the sliding directions of the first clamp 230 and the second clamp 240 are perpendicular.

[0030] In the above scheme, the vertical sliding direction of the first clamp 230 and the second clamp 240 can make more efficient use of the space on the support frame 110, making the structure of the device more compact and reducing the floor space. Moreover, the vertical sliding direction makes the conveying of the wrapped fabric simpler and facilitates the arrangement of the first clamp 230 and the second clamp 240.

[0031] The first clamp 230 and the second clamp 240 have a conveying space 250, which ensures that the movements of the first clamp 230 and the second clamp 240 are independent and do not interfere with each other, thus improving the flexibility and accuracy of operation.

[0032] Furthermore, the height of the fabric roll 300 is lower than that of the first clamp 230. Both the first conveying device 210 and the second conveying device 220 include guide rollers 260 rotatably mounted on the bracket 100. The guide rollers 260 are located on one side of the conveying space 250 and are used to guide the fabric roll 300 to the conveying space 250. There are two limiting plates 270, both of which are mounted on the bracket 100. The two limiting plates 270 are located on the side of the guide rollers 260 that are close to the conveying space 250. The two limiting plates 270 form a limiting space 280. The fabric roll enters the conveying space 250 after passing through the limiting space 280.

[0033] In the above scheme, the design of the fabric roll 300 being lower than the first clamp 230 allows the fabric located between the fabric roll 300 and the first clamp 230 to remain taut under the action of gravity, ensuring that the fabric in the conveying space 250 is of a fixed length under the pull of the first clamp 230.

[0034] The guide roller 260 can accurately guide the fabric roll 300 to the conveying space 250, preventing the fabric from deviating or folding during the conveying process, thus ensuring the accuracy and continuity of the fabric conveying.

[0035] The limiting space 280, composed of two limiting plates 270, serves to limit and organize the fabric entering the conveying space 250, ensuring the fabric enters the conveying space 250 neatly. Furthermore, the two limiting plates 270 support the fabric after it is cut, preventing the cut edge from sagging under gravity and affecting the gripping of the front end of the fabric by the first clamp 230 on the next side. The two limiting plates 270 help improve the accuracy and quality of subsequent processing. Moreover, the limiting space 280 effectively restricts the swaying and offset of the fabric, reducing dimensional errors and conveying malfunctions caused by unstable fabric positioning.

[0036] Furthermore, it also includes a cutting blade 400 that is raised and lowered on the bracket 100. After the cutting blade 400 is raised and lowered, it approaches or moves away from the conveying space 250. The cutting blade 400 is located between the limiting space 280 and the conveying space 250. The cutting blade 400 is used to cut the wrapping fabric.

[0037] In the above solution, the cutting blade 400 can accurately cut the fabric at the designated position, ensuring consistency and precision in the cutting position, which is beneficial to improving the cutting quality of the fabric. The lifting and lowering action facilitates integration with the control system of the entire production process, realizing automated and precise control, and reducing the difficulty and error rate of manual operation. The cutting blade 400 can be pneumatically raised and lowered on the support 100, which is not only fast but also easy to control.

[0038] The cutting blade 400 is heated by a thermocouple, which enables the cutting blade 400 to perform thermal cutting on the covering fabric, thereby improving the cutting efficiency of the covering fabric.

[0039] Example 2 Referring to Figures 4 and 5, this is the second embodiment of the present invention, which is based on the first embodiment: Compared with Example 1, the second clamp 240 further includes a sliding frame 241 slidably disposed on the support frame 110, the sliding frame 241 being located above the first clamp 230; there are four second grippers 242, all disposed on the sliding frame 241, and the four second grippers 242 are respectively used to clamp the four corners of the cloth wrapped in the conveying space 250.

[0040] In this embodiment, the four second grippers 242 clamp the four corners of the fabric respectively, which can grip the fabric more firmly. This not only prevents the fabric from shifting or falling off during the conveying process and ensures the stability of the conveying, but also ensures that the fabric is in a taut state when the fabric is cut, thus ensuring the quality of the cut.

[0041] In actual use, the first clamp 230 pulls the front end of the cloth from the cloth roll 300, so that the cloth part is located in the conveying space 250. The four second jaws 242 clamp the four corners of the cloth located in the conveying space 250. The cutting blade 400 rises to cut the cloth. The first clamp 230 releases the cut cloth in the conveying space 250. The four second jaws 242 drive the cloth in the conveying space 250 to the packing machine through the sliding frame 241. After the second jaws 242 bring the cloth to the designated position of the packing machine, the second jaws 242 release the cloth. The sliding frame 241 slides, so that the second jaws 242 move back below the first clamp 230, waiting for the first clamp 230 to pick up the cloth again and put it into the conveying space 250.

[0042] Example 3 Referring to Figures 6 and 7, this is the third embodiment of the present invention. This embodiment differs from the second embodiment in that: Compared to Example 1, there are two fixed grippers 290, which are disposed on the support frame 110. The second clamp 240 slides closer to or away from the fixed grippers 290. The fixed grippers 290 are used to clamp the two ends of one side of the fabric in the conveying space 250. The second clamp 240 includes a sliding frame 241 which is slidably disposed on the support frame 110. The sliding frame 241 is located above the first clamp 230. There are two second grippers 242, both disposed on the sliding frame 241. The second grippers 242 slide closer to or away from the fixed grippers 290. The two second grippers 242 and the two fixed grippers 290 are respectively used to clamp the four corners of the fabric in the conveying space 250.

[0043] In this embodiment, the four corners are clamped by two fixed jaws 290 and two second jaws 242 respectively, providing a more stable and balanced clamping force, ensuring that the fabric will not loosen or shift during conveying and processing, thus improving processing accuracy and stability. Because the two fixed jaws 290 and two second jaws 242 respectively clamp the four corners of the fabric within the conveying space 250, after the fabric is cut, the first clamp 230 and the fixed jaws 290 release the fabric within the conveying space 250. The sliding frame 241 slides, causing the second jaws 242 to move the fabric to the designated position on the packing machine. During the movement of the fabric held by the second jaws 242, the first clamp 230 can pull the front end of the fabric roll 300 from the limiting plate 270 again. After the second jaws 242 return, they can immediately clamp the fabric within the conveying space 250, and clamp it at the four corners of the fabric with the two fixed jaws 290 respectively, waiting for the cutting blade 400 to cut it.

[0044] The design of the fixed gripper 290, the second gripper 242, and the sliding frame 241 improves the overall fabric conveying efficiency, which is beneficial for mass production applications.

[0045] It should be further explained that the fixed gripper 290 is located on the side of the second gripper 242 away from the wrapping machine, and the fixed gripper 290 also grips the end of the wrapping cloth in the conveying space 250 away from the packing machine.

[0046] Example 4 Referring to Figures 4-5 and 9-10, this is the fourth embodiment of the present invention, which is based on the second or third embodiment: Compared with Example 2 or Example 3, the guide roller 260 and the limiting plate 270 of the first conveying device 210 and the guide roller 260 and the limiting plate 270 of the second conveying device 220 are respectively located on both sides of the conveying space 250, and the upper fabric roll 300 and the lower fabric roll 300 are respectively located on the side of the limiting plate 270 away from the conveying space 250.

[0047] In the above scheme, the layout on both sides allows the conveying processes of the upper and lower covering fabrics to be independent, avoiding interference or entanglement between the two during conveying, and ensuring smooth and accurate conveying. Furthermore, it makes full use of the space on both sides of the conveying space 250, making the entire device more compact and saving installation space.

[0048] In actual use, the fabric rolls 300 are located on both sides of the bracket 100. The two fabric rolls 300 rotate 180 degrees so that when the fabric is pulled off the fabric rolls 300, it can be in two states, with the waterproof side facing up and the fabric side facing down, respectively, for packaging purposes.

[0049] Furthermore, the limiting plate 270 has a notch 271 on the side near the conveying space 250, and the notches 271 of the two limiting plates 270 are connected. The first clamp 230 slides into or out of the notch 271.

[0050] In the above scheme, the limiting plate 270 has a notch 271 on the side near the conveying space 250. The notches 271 of the two limiting plates 270 are connected. After the cutting blade 400 rises and cuts the covering fabric between the limiting space 280 and the conveying space 250, the front end of the covering fabric connected to the covering fabric roll 300 may droop under the action of gravity. When the first clamp 230 slides close to the front end of the covering fabric to clamp it, the clamping position may be unstable due to the unstable position of the front end of the covering fabric, thus affecting the size of the covering fabric. However, when the first clamp 230 enters the notch 271 to clamp the covering fabric, combined with the supporting function of the limiting plate 270 for the covering fabric, the first clamp 230 can clamp the same size of covering fabric each time, ensuring the utilization rate of the covering fabric.

[0051] Example 5 Referring to Figures 9 and 10, this is the fifth embodiment of the present invention, which is based on the fourth embodiment: Compared with Example 4, it further includes a lifting plate 500, which is lifted and disposed on the bracket 100. After the lifting plate 500 is lifted and disposed, it approaches or moves away from the conveying space 250. The lifting plate 500 is located between the guide roller 260 and the limiting plate 270. A fixing plate 600 is disposed on the bracket 100 and is located above the lifting plate 500. After the lifting plate 500 is lifted and disposed, it abuts against the fixing plate 600. The lifting plate 500 and the fixing plate 600 are used to clamp or loosen the fabric wrapping.

[0052] In this embodiment, the lifting plate 500 cooperates with the fixing plate 600 to firmly clamp the fabric when needed, preventing the fabric connected to the fabric roll 300 from sliding down to the fabric roll 300 under the action of gravity after being cut by the cutting blade 400.

[0053] In practical use, before the cutting blade 400 rises to cut the fabric, the lifting plate 500 rises first to clamp the fabric with the fixing plate 600. After the fabric is cut, the fabric located in the limiting space 280 will not slip. When the first clamp 230 clamps the front end of the fabric connected to the fabric roll 300, the lifting plate 500 descends to release the fabric, so that the fabric can be pulled by the first clamp 230.

[0054] The lifting plate 500 is raised and lowered on the bracket 100 using a cylinder, and a rubber pad can be added to the section of the lifting plate 500 near the fixed plate 600 to prevent the lifting plate 500 from damaging the fabric.

[0055] Example 6 Referring to Figures 1 and 8, this is the sixth embodiment of the present invention. This embodiment differs from the fifth embodiment in that, compared to Example 4, it further includes several groups of one-way valve plates 700. The several groups of one-way valve plates 700 are all disposed on the limiting plate 270. The several groups of one-way valve plates 700 are linearly distributed along the sliding direction of the second clamp 240. The one-way valve plates 700 are used to prevent the front end of the wrapping fabric from moving away from the conveying space 250. Each group of one-way valve plates 700 has two elastic plates 710. Each elastic plate 710 has a first end 711 and a second end 712. The first ends 711 of the two elastic plates 710 are respectively disposed on the two limiting plates 270. The second ends 712 of the two elastic plates 710 abut against each other, and the second end 712 is closer to the conveying space 250 than the first end 711.

[0056] In this embodiment, compared to the method of clamping the cloth by the lifting plate 500 in embodiment 5, the one-way valve plate 700 does not require an additional driving device. When the first clamp 230 clamps the front end of the cloth connected to the cloth roll 300, the first clamp 230 can clamp the cloth, causing the front end of the cloth to move from the first end 711 to the second end 712. After the cutting blade 400 cuts the cloth, the one-way valve plate 700 can provide a certain friction force to the cloth to prevent the cloth from slipping away from the conveying space 250.

[0057] It should be further explained that the one-way valve plate 700 and the notch 271 on the limiting plate 270 are arranged alternately to prevent interference between the first clamp 230 and the one-way valve plate. The second end 712 of each one-way valve plate 700 has a flexible friction layer, which can generate friction with the fabric on the one hand, and prevent damage to the fabric on the other hand.

[0058] A packaging machine is characterized in that it includes a cloth conveying device and a packaging device disposed on one side of a support. The cloth conveying device is used to convey cloth to the packaging device, and a second clamp 240 slides to approach or move away from the packaging device.

[0059] In this embodiment, the cloth conveying device is used to convey cloth to the baling machine. The second clamp 240 slides closer to or further away from the baling machine. The baling machine has a chute so that the second clamp 240 can pass through the chute, which makes it easy for the second clamp 240 to place the upper or lower cloth directly above or below the baling machine's extrusion chamber.

[0060] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A fabric conveying device for conveying the fabric from a fabric roll (300) on a fabric roll rack to a packing machine, wherein the fabric roll (300) is divided into an upper fabric roll and a lower fabric roll, and the fabric is divided into an upper fabric roll and a lower fabric roll, characterized in that, include: A support (100) is disposed on one side of the fabric roll (300), and the packing machine is located on the side of the support adjacent to the fabric roll (300); Two conveying devices (200) are spaced apart along the height direction on the support (100). The two conveying devices (200) are respectively used to convey the upper covering fabric and the lower covering fabric. Each conveying device (200) includes: A support frame (110) is mounted on the bracket (100); The first clamp (230) is slidably disposed on the support frame (110). The first clamp (230) is used to clamp the front end of the fabric roll (300). After the first clamp (230) slides, it moves closer to or away from the fabric roll (300). The second clamp (240) is slidably disposed on the support frame (110). After the second clamp (240) slides, it approaches or moves away from the packing machine. There is a conveying space (250) between the second clamp (240) and the first clamp (230), and the conveying space (250) is used for the cloth to pass through.

2. The fabric conveying device according to claim 1, characterized in that, The height of the fabric roll (300) is lower than that of the first clamp (230), and the conveying device (200) further includes: A guide roller (260) is rotatably mounted on the bracket (100). The guide roller (260) is located on one side of the conveying space (250). The guide roller (260) is used to guide the fabric on the fabric roll (300) to the conveying space (250). There are two limiting plates (270), both of which are disposed on the bracket (100). The two limiting plates (270) are located on the side of the guide roller (260) near the conveying space (250). The two limiting plates (270) form a limiting space (280). The fabric enters the conveying space (250) after passing through the limiting space (280).

3. The fabric conveying device according to claim 2, characterized in that, Also includes: A cutting blade (400) is raised and lowered on the bracket (100). After the cutting blade (400) is raised and lowered, it approaches or moves away from the conveying space (250). The cutting blade (400) is located between the limiting space (280) and the conveying space (250). The cutting blade (400) is used to cut the covering fabric.

4. The fabric conveying device according to claim 2, characterized in that, The second clamp (240) includes: A sliding frame (241) is slidably mounted on the support frame (110), and the sliding frame (241) is located above the first clamp (230); There are four second grippers (242), all of which are disposed on the sliding frame (241). The four second grippers (242) are respectively used to clamp the four corners of the cloth in the conveying space (250).

5. A fabric conveying device according to claim 2, characterized in that, Also includes: Two fixed grippers (290) are provided on the support frame (110). The second clamp (240) slides closer to or away from the fixed grippers (290). The fixed grippers (290) are used to clamp the two ends of one side of the fabric in the conveying space (250). The second clamp (240) includes: A sliding frame (241) is slidably mounted on the support frame (110), and the sliding frame (241) is located above the first clamp (230); There are two second grippers (242), both of which are disposed on the sliding frame (241). After sliding, the second grippers (242) move closer to or further away from the fixed grippers (290). The two second grippers (242) and the two fixed grippers (290) are respectively used to clamp the four corners of the cloth in the conveying space (250).

6. A fabric conveying device according to claim 4 or 5, characterized in that, The conveying device (200) has two components, and the guide rollers (260) and the limiting plate (270) of the two conveying devices (200) are respectively located on both sides of the two conveying spaces (250). The upper fabric roll and the lower fabric roll are respectively located on the side of the limiting plate (270) away from the conveying space (250).

7. A fabric conveying device according to claim 2, characterized in that, The limiting plate (270) has a notch (271) on the side near the conveying space (250), and the notches (271) of the two limiting plates (270) are connected. The first clamp (230) slides into or out of the notch (271).

8. A fabric conveying device according to claim 7, characterized in that, Also includes: A lifting plate (500) is lifted and lowered on the bracket (100). After the lifting plate (500) is lifted and lowered, it moves closer to or further away from the conveying space (250). The lifting plate (500) is located between the guide roller (260) and the limiting plate (270). A fixing plate (600) is disposed on the bracket (100). The fixing plate (600) is located above the lifting plate (500). After the lifting plate (500) is raised and lowered, it abuts against the fixing plate (600). The lifting plate (500) and the fixing plate (600) are used to clamp or loosen the cloth covering.

9. A fabric conveying device according to claim 7, characterized in that, Also includes: A number of one-way valve plates (700) are provided, and the number of one-way valve plates (700) are all provided on the limiting plate (270). The number of one-way valve plates (700) are linearly distributed along the sliding direction of the second clamp (240). The one-way valve plates (700) are used to prevent the front end of the wrapping fabric from moving away from the conveying space (250). Each group of one-way valve plates (700) has two elastic plates (710). The two elastic plates (710) each have a first end (711) and a second end (712). The first ends (711) of the two elastic plates (710) are respectively provided on the two limiting plates (270). The second ends (712) of the two elastic plates (710) abut against each other. The second end (712) is closer to the conveying space (250) than the first end (711).

10. A packaging machine, characterized in that, The fabric conveying device according to any one of claims 1 to 9 further includes: A packing device is provided on one side of the support, and the cloth conveying device is used to convey the cloth to the packing device. The second clamp (240) slides closer to or away from the packing device.

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