Sewing equipment for manufacturing polyethylene fiber lifting belt

Abstract

The utility model relates to sewing equipment for manufacturing a polyethylene fiber lifting belt, which belongs to the technical field of sewing equipment and comprises a base, and a fixing block is arranged on the upper surface of the base. According to the sewing equipment for manufacturing the polyethylene fiber lifting belt, the outer side of a high-strength rope core can be wrapped with wear-resisting outer sleeve cloth, no gap is reserved, the two sides, needing to be sewn, of the wear-resisting outer sleeve cloth are located on the front face of a lower clamping plate, then the whole is placed in the lower clamping plate, then a first rotating handle can be rotated, and the wear-resisting outer sleeve cloth can be sewn. A first threaded rod is driven to rotate, a lifting belt needing to be sewn can be clamped and fixed under limiting of limiting telescopic rods on the left side and the right side, then sewing is carried out under the effect of mutual cooperation between a linear module and a sewing device, and through mutual cooperation of a lower clamping plate and an upper clamping plate, the sewing tightness of the lifting belt can be improved; and the influence on the use stability and safety of the lifting belt due to the generation of internal gaps of the lifting belt is reduced.

Description

Technical Field

[0001] This utility model relates to the field of sewing equipment technology, specifically to a sewing device for manufacturing polyethylene fiber lifting straps. Background Technology

[0002] Polyethylene fiber slings are high-performance lifting tools widely used in industrial and logistics fields. Polyethylene fiber slings are slings made of a braided, abrasion-resistant outer layer with a high-strength rope core inside. They are one of the most widely used soft slings and can be machine-stitched.

[0003] For example, Chinese patent CN211498059U discloses a sewing device for manufacturing synthetic fiber bundled circular lifting straps, including a rectangular block with a hollow interior. The hollow portion of the rectangular block extends through the front wall of the block. A storage box is movably installed inside the rectangular block. When the storage box is fully pushed into the rectangular block, its front wall is flush with the front wall of the rectangular block. A handle is fixedly installed on the front wall of the storage box for easy pulling out. A T-shaped groove is formed on the upper wall of the rectangular block, extending through the left and right walls. By incorporating the storage box, the excess fabric can be easily collected and processed later by pulling the box forward.

[0004] While the aforementioned patent facilitates the collection of excess fabric trimmed off and allows for convenient one-time processing later, the lifting strap, after being sewn together using a sewing device, still has internal gaps due to the influence of the crossbar. These internal gaps may prevent the lifting strap from distributing stress evenly when under load, thereby reducing its overall load-bearing capacity and practicality. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a sewing device for manufacturing polyethylene fiber lifting slings. It has advantages such as improving the tightness of the sewing of the lifting slings, enhancing their stability and safety during use, and solving the problem that after the lifting slings are sewn by the sewing device, there are certain gaps inside the lifting slings due to the influence of the crossbar. These gaps may cause the lifting slings to not distribute stress evenly when under load, thereby reducing their overall load-bearing capacity and practicality.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a sewing device for manufacturing polyethylene fiber lifting straps, comprising a base, a fixing block provided on the upper surface of the base, a lower clamping plate provided on the upper surface of the fixing block, a clamping mechanism provided on the rear side of the upper surface of the base, and fixing mechanisms provided on the left and right sides of the lower surface of the base.

[0007] The clamping mechanism includes a support column frame disposed on the rear side of the upper surface of the base. A connecting plate is disposed on the upper side of the front of the support column frame. Limiting telescopic rods are disposed on both the left and right sides of the upper surface of the connecting plate. The bottom ends of the left and right limiting telescopic rods penetrate the connecting plate and extend to the lower side of the connecting plate. A fixing plate is disposed at the bottom end of the left and right limiting telescopic rods. Spring telescopic rods are disposed on both the left and right sides of the lower surface of the fixing plate. An upper clamping plate is disposed on the lower surface of the left and right spring telescopic rods. A first threaded rod is threaded through the internal thread of the connecting plate. A first rotating handle is disposed at the top end of the first threaded rod. The bottom end of the first threaded rod is rotatably connected to the upper surface of the fixing plate through a bearing.

[0008] Furthermore, the limiting telescopic rod includes a first slide rod, and a second slide rod is slidably connected inside the first slide rod.

[0009] Furthermore, the spring telescopic rod includes a first sliding rod, a second sliding rod is slidably connected inside the first sliding rod, a spring is movably fitted on the outer side of the first sliding rod, a straight module is provided on the front side of the upper clamping plate, and a stitcher is provided on the lower surface of the straight module.

[0010] Furthermore, the fixing mechanism includes two threaded cylinders disposed on the left and right sides of the lower surface of the base. The top ends of the four threaded cylinders all penetrate the base and extend to the upper side of the base. The interior of each of the four threaded cylinders is threaded with a second threaded rod, and the top end of each of the four second threaded rods is provided with a second rotating handle.

[0011] Furthermore, the fixing mechanism also includes mounting blocks rotatably connected to the bottom ends of the four second threaded rods via bearings. The lower surfaces of the four mounting blocks are provided with suction cups, and the four corners of the lower surface of the base are provided with support cylinders. The four suction cups are all located inside the four support cylinders.

[0012] Furthermore, a U-shaped frame is provided on the front side of the lower clamping plate, a movable block is slidably connected to the outer side of the U-shaped frame, a blade is provided on the right side of the movable block, and the movable block and the U-shaped frame are fitted with a gap.

[0013] Furthermore, a handle is provided on the front of the movable block.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] 1. This sewing equipment for manufacturing polyethylene fiber lifting slings can wrap abrasion-resistant outer fabric around the outside of a high-strength rope core without leaving gaps. Both sides of the abrasion-resistant outer fabric to be sewn are located on the front of the lower clamping plate. Then, the entire assembly is placed inside the lower clamping plate. The first rotating handle can then be rotated, driving the first threaded rod to rotate. Under the limitation of the left and right limiting telescopic rods, the fixing plate and the upper clamping plate move downwards. Then, the upper clamping plate moves downwards to the upper surface of the lower clamping plate, clamping and fixing the lifting sling to be sewn. Then, the sewing is performed through the cooperation between the straight module and the sewing machine. The cooperation between the lower clamping plate and the upper clamping plate can improve the tightness of the lifting sling sewing and reduce the generation of gaps inside the lifting sling, thereby affecting the stability and safety of the lifting sling in use.

[0016] 2. This sewing equipment for manufacturing polyethylene fiber lifting straps uses a suction cup design to firmly fix the equipment on the table, reducing errors caused by equipment shaking during the sewing process and improving sewing quality. At the same time, the suction cup can retract and extend at any time, and the equipment can be quickly released from fixation when it needs to be moved, without affecting the flexibility of the equipment. Attached Figure Description

[0017] Fig. 1 This is a schematic diagram of the structure of this utility model;

[0018] Fig. 2 This is a schematic diagram of the connection structure between the lower clamping plate and the U-shaped frame of this utility model;

[0019] Fig. 3 This is a schematic diagram of the clamping mechanism of this utility model;

[0020] Fig. 4 This is a schematic diagram of the fixing mechanism of this utility model.

[0021] In the diagram: 1. Base, 2. Fixing block, 3. Lower clamping plate, 4. Clamping mechanism, 401. Support column frame, 402. Connecting plate, 403. Limiting telescopic rod, 404. Fixing plate, 405. Spring telescopic rod, 406. Upper clamping plate, 407. First threaded rod, 408. First rotating handle, 5. Fixing mechanism, 501. Threaded cylinder, 502. Second threaded rod, 503. Second rotating handle, 504. Mounting block, 505. Suction cup, 506. Support cylinder, 6. U-shaped frame, 7. Moving block, 8. Blade, 9. Handle rod, 10. Linear module, 11. Sewing machine. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figs. 1-2 This embodiment provides a sewing device for manufacturing polyethylene fiber lifting straps, including a base 1. A fixing block 2 is provided on the upper surface of the base 1, and a lower clamping plate 3 is provided on the upper surface of the fixing block 2. A clamping mechanism 4 is provided on the rear side of the upper surface of the base 1. The clamping mechanism 4 improves the tightness of the lifting strap sewing, enhances the stability and safety of use, and fixing mechanisms 5 are provided on the left and right sides of the lower surface of the base 1. The fixing mechanisms 5 can firmly fix the device on the table and reduce the error caused by the shaking of the device during the sewing process.

[0024] In this embodiment, a U-shaped frame 6 is provided on the front of the lower clamping plate 3, a movable block 7 is slidably connected to the outside of the U-shaped frame 6, a blade 8 is provided on the right side of the movable block 7, the movable block 7 and the U-shaped frame 6 are fitted with a gap, and a handle 9 is provided on the front of the movable block 7.

[0025] Please see Fig. 3 To improve the tightness of the lifting sling stitching and enhance its stability and safety, the clamping mechanism 4 in this embodiment includes a support column 401 disposed on the rear side of the upper surface of the base 1. A connecting plate 402 is disposed on the upper side of the front of the support column 401. Limiting telescopic rods 403 are disposed on both the left and right sides of the upper surface of the connecting plate 402. The bottom ends of the left and right limiting telescopic rods 403 penetrate the connecting plate 402 and extend to the lower side of the connecting plate 402. A fixing plate 404 is disposed at the bottom end of the left and right limiting telescopic rods 403. Spring telescopic rods 405 are provided on both the left and right sides of the lower surface of the fixed plate 404. Upper clamping plates 406 are provided on the lower surface of the left and right spring telescopic rods 405. The internal thread of the connecting plate 402 is connected to a first threaded rod 407. A first rotating handle 408 is provided at the top of the first threaded rod 407. The bottom end of the first threaded rod 407 is rotatably connected to the upper surface of the fixed plate 404 through a bearing. A straight module 10 is provided on the front of the upper clamping plate 406. A sewing device 11 is provided on the lower surface of the straight module 10.

[0026] In this embodiment, the wear-resistant outer fabric can be wrapped around the outside of the high-strength rope core without leaving gaps, and both sides of the wear-resistant outer fabric that need to be sewn are located on the front of the lower clamping plate 3. Then, the whole thing is placed inside the lower clamping plate 3. Then, the first rotating handle 408 can be rotated to drive the first threaded rod 407 to rotate. Under the limitation of the left and right side limiting telescopic rods 403, the fixing plate 404 and the upper clamping plate 406 move downward. Then, the upper clamping plate 406 moves downward to the upper surface of the lower clamping plate 3. The wear-resistant outer fabric is woven from polyethylene fiber and has good wear resistance and corrosion resistance. The high-strength rope core is the core part of the lifting sling and is made of ultra-high molecular weight polyethylene fiber.

[0027] In this embodiment, the limiting telescopic rod 403 includes a first sliding rod, and a second sliding rod is slidably connected inside the first sliding rod. The spring telescopic rod 405 includes a first sliding rod, and a second sliding rod is slidably connected inside the first sliding rod. A spring is movably fitted on the outer side of the first sliding rod. Arc-shaped grooves are opened on opposite sides of the lower clamping plate 3 and the upper clamping plate 406, which are used for placing lifting straps.

[0028] It should be noted that the lifting straps that need to be sewn can be clamped and fixed. Then, the straight module 10 and the sewing machine 11 can be turned on to sew. After sewing, hold the handle 9 and move the moving block 7 to the right on the outside of the U-shaped frame 6, which will move the blade 8 to the right to cut the excess fabric. When cutting, one end of the fabric can be held to make cutting easier.

[0029] Please see Fig. 4 In order to securely fix the device on the table and reduce errors caused by device shaking during the sewing process, the fixing mechanism 5 in this embodiment includes two threaded cylinders 501 disposed on the left and right sides of the lower surface of the base 1. The top ends of the four threaded cylinders 501 all penetrate the base 1 and extend to the upper side of the base 1. The interior of each of the four threaded cylinders 501 is threaded with a second threaded rod 502, and the top end of each of the four second threaded rods 502 is provided with a second rotating handle 503.

[0030] In this embodiment, the fixing mechanism 5 also includes mounting blocks 504 rotatably connected to the bottom ends of the four second threaded rods 502 via bearings. The lower surfaces of the four mounting blocks 504 are each provided with suction cups 505, and the four corners of the lower surface of the base 1 are each provided with support cylinders 506. The four suction cups 505 are all located inside the four support cylinders 506.

[0031] It should be noted that during sewing, the four second rotating handles 503 can be rotated separately, causing the four second threaded rods 502 to rotate inside the four threaded cylinders 501. This allows the four suction cups 505 to be moved out to the underside of the four support cylinders 506. The four suction cups 505 can be used to fix the device on the table, improving the stability of the sewing. At the same time, by twisting the four first rotating handles 408, the four suction cups 505 can be retracted into the four support cylinders 506.

[0032] The working principle of the above embodiments is as follows:

[0033] (1) The wear-resistant outer fabric can be wrapped around the outside of the high-strength rope core without leaving gaps, and both sides of the wear-resistant outer fabric that need to be sewn are located on the front of the lower clamping plate 3. Then, the whole thing is placed inside the lower clamping plate 3. Then, the first rotating handle 408 can be rotated to drive the first threaded rod 407 to rotate. Under the limitation of the left and right side limiting telescopic rods 403, the fixing plate 404 and the upper clamping plate 406 move downward. Then, the upper clamping plate 406 moves downward to the upper surface of the lower clamping plate 3, which can clamp and fix the lifting strap that needs to be sewn. Then, the straight module 10 and the sewing machine 11 are turned on, and then sewing can be performed. After sewing, the handle rod 9 can be held to drive the moving block 7 to slide to the right on the outside of the U-shaped frame 6, and drive the blade 8 to move to the right to cut the excess fabric. When cutting, one end of the fabric can be pulled to cut.

[0034] (2) When sewing, the four second rotating handles 503 can be rotated respectively, which will drive the four second threaded rods 502 to rotate inside the four threaded cylinders 501. This will move the four suction cups 505 to the underside of the four support cylinders 506. The four suction cups 505 can fix the equipment on the table, improving the stability of sewing. At the same time, by twisting the four first rotating handles 408, the four suction cups 505 can be retracted into the four support cylinders 506.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A sewing device for manufacturing polyethylene fiber lifting straps, comprising a base (1), characterized in that: The upper surface of the base (1) is provided with a fixing block (2), the upper surface of the fixing block (2) is provided with a lower clamping plate (3), the rear side of the upper surface of the base (1) is provided with a clamping mechanism (4), and the left and right sides of the lower surface of the base (1) are provided with fixing mechanisms (5). The clamping mechanism (4) includes a support column (401) disposed on the rear side of the upper surface of the base (1). A connecting plate (402) is disposed on the upper side of the front of the support column (401). Limiting telescopic rods (403) are disposed on both the left and right sides of the upper surface of the connecting plate (402). The bottom ends of the left and right limiting telescopic rods (403) penetrate the connecting plate (402) and extend to the lower side of the connecting plate (402). A fixing plate (4) is disposed at the bottom end of the left and right limiting telescopic rods (403). 04), spring telescopic rods (405) are provided on both the left and right sides of the lower surface of the fixed plate (404), and upper clamping plates (406) are provided on the lower surface of the spring telescopic rods (405) on the left and right sides. The internal thread of the connecting plate (402) is connected to a first threaded rod (407). A first rotating handle (408) is provided at the top of the first threaded rod (407). The bottom end of the first threaded rod (407) is rotatably connected to the upper surface of the fixed plate (404) through a bearing.

2. The sewing equipment for manufacturing polyethylene fiber lifting straps according to claim 1, characterized in that: The limiting telescopic rod (403) includes a first slide rod, and a second slide rod is slidably connected inside the first slide rod.

3. The sewing equipment for manufacturing polyethylene fiber lifting straps according to claim 1, characterized in that: The spring telescopic rod (405) includes a first sliding rod, a second sliding rod is slidably connected inside the first sliding rod, a spring is movably fitted on the outside of the first sliding rod, a straight module (10) is provided on the front of the upper clamping plate (406), and a sewing device (11) is provided on the lower surface of the straight module (10).

4. The sewing equipment for manufacturing polyethylene fiber lifting straps according to claim 1, characterized in that: The fixing mechanism (5) includes two threaded cylinders (501) arranged on the left and right sides of the lower surface of the base (1). The top ends of the four threaded cylinders (501) all penetrate the base (1) and extend to the upper side of the base (1). The interior of each of the four threaded cylinders (501) is threaded with a second threaded rod (502). The top ends of each of the four second threaded rods (502) are provided with a second rotating handle (503).

5. A sewing device for manufacturing polyethylene fiber lifting straps according to claim 4, characterized in that: The fixing mechanism (5) also includes mounting blocks (504) rotatably connected to the bottom ends of the four second threaded rods (502) via bearings. The lower surfaces of the four mounting blocks (504) are provided with suction cups (505), and the four corners of the lower surface of the base (1) are provided with support cylinders (506). The four suction cups (505) are located inside the four support cylinders (506).

6. A sewing device for manufacturing polyethylene fiber lifting straps according to claim 1, characterized in that: The lower clamping plate (3) is provided with a U-shaped frame (6) on the front side. A moving block (7) is slidably connected to the outside of the U-shaped frame (6). A blade (8) is provided on the right side of the moving block (7). The moving block (7) and the U-shaped frame (6) are fitted with a gap.

7. A sewing device for manufacturing polyethylene fiber lifting straps according to claim 6, characterized in that: The movable block (7) is provided with a handle (9) on its front side.

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