Stretching and shaping device for packing belt production

Abstract

The utility model discloses a packing belt production stretching and shaping device which comprises a main machine body, a rectangular groove is formed in the upper portion of the front side of the main machine body, an air cylinder is arranged on the upper portion of the rectangular groove, the air cylinder is fixedly connected to the front side of the main machine body, and a sliding block is connected into the rectangular groove in a sliding mode. The front side of the sliding block is connected with a stretching roller through a rotating shaft, the lower end of a piston rod of the air cylinder is fixedly connected with a connecting rod, and the upper portion of the sliding block is fixedly connected with a first sleeve. The driven roller device is detachably connected with the front side of the main machine body through the bottom plate, the second fixed roller is sleeved with the working roller through the second sleeve, stable operation of the working roller is guaranteed through the limiting cap, the first bearing and the second bearing, the working roller can be conveniently pulled out by detaching the limiting cap, and the working roller can be conveniently pulled out by adjusting the diameter of the working roller. And the device can adapt to packing belts with different thicknesses and widths, so that the universality and adaptability of the device are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of stretching and shaping devices, in particular to a stretching and shaping device for producing a strapping belt. Background Art

[0002] As an important component of packaging materials, strapping tape plays an indispensable role in logistics, warehousing and other industries. With the continuous improvement of the level of industrial automation, the quality requirements for strapping tape are getting higher and higher, especially the requirements for its strength, stability and appearance are more stringent. The traditional strapping tape production process mainly includes melt extrusion, cooling molding, stretching and other steps. In recent years, in order to improve the performance of strapping tape, researchers have been constantly exploring new production processes and technical improvement solutions. For example, a multi-stage stretching process is used to improve the mechanical strength of the strapping tape; the cooling method is improved to optimize the dimensional stability and surface quality of the strapping tape; new materials are used to improve the weather resistance and impact resistance of the strapping tape. However, the existing strapping tape production technology still has certain limitations, especially in the stretching and shaping link.

[0003] In the existing strapping tape production process, the stretching and shaping stage is particularly critical to the final performance of the strapping tape. The currently commonly used stretching devices are mainly implemented by simple mechanical structures, such as fixed stretching rollers and guide devices. Although such devices can basically meet the stretching requirements, they are insufficient in terms of operational flexibility, adaptability, and applicability to strapping tapes of different thicknesses. Specifically, existing stretching devices often find it difficult to accurately control the stretching force and stretching speed, which causes the strapping tape to easily break or deform during the stretching process. In addition, the existing passive rollers are not convenient to disassemble, and it is impossible to replace working rollers of different diameters according to the product. Therefore, we propose a stretching and shaping device for strapping tape production. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of the utility model is to provide a stretching and shaping device for the production of strapping tape. By providing a cylinder and a slider, the cylinder can drive the slider and the stretching roller to descend, thereby playing a role in adjusting the tension. Through the detachable passive roller device, it is convenient to replace working rollers of different diameters according to different products.

[0005] The utility model is implemented as follows: a stretching and shaping device for producing a strapping tape comprises a main body, a rectangular groove is opened on the upper front side of the main body, a cylinder is arranged on the upper part of the rectangular groove, the cylinder is fixedly connected to the front side of the main body, a slider is slidably connected inside the rectangular groove, a stretching roller is connected to the front side of the slider through a rotating shaft, a connecting rod is fixedly connected to the lower end of the piston rod of the cylinder, a first sleeve is fixedly connected to the upper part of the slider, the first sleeve is sleeved on the outer side of the connecting rod, bolts are respectively connected to the left and right sides of the first sleeve, a limiting roller device is arranged on the lower part of the stretching roller, and a plurality of passive roller devices are detachably connected to the front side of the main body.

[0006] Optionally, the passive roller device comprises a bottom plate, the bottom plate is connected to the front side of the main body by bolts, a first fixed roller is welded to the front side of the bottom plate, and a second fixed roller is welded to the front side of the first fixed roller.

[0007] Optionally, a screw hole is formed at the end of the second fixing roller, and the diameter of the second fixing roller is smaller than that of the first fixing roller.

[0008] Optionally, a working roller is sleeved on the outer side of the second fixed roller, a second sleeve is penetrated and welded inside the working roller, a receiving cavity is provided on one side of the working roller, and a limiting cap is provided inside the receiving cavity.

[0009] Optionally, the limiting cap is connected to the second fixed roller via bolts, a mounting cavity is provided at the rear side of the limiting cap, and a first bearing is provided inside the mounting cavity.

[0010] Optionally, the first bearing is sleeved on the front end of the second fixed roller, and the rear end of the second fixed roller is sleeved with a second bearing.

[0011] Optionally, a step portion is provided inside the rear side of the second sleeve, and the second bearing is arranged inside the step portion.

[0012] Optionally, the structure of the limiting roller device is the same as that of the passive roller device, and a supporting leg is welded to the lower part of the main body.

[0013] Optionally, a slag receiving plate is welded between the support leg and the front side of the main body, a reduction motor is connected to the front side of the main body via bolts, and an output shaft of the reduction motor is fixedly connected to the first conveying rod.

[0014] Optionally, a fixing block is welded on the left side of the main body, and a guide roller is connected to the front side of the fixing block via a bearing.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. A linkage mechanism between a cylinder and a slider is provided, wherein the piston rod of the cylinder is connected to the first sleeve on the slider through a connecting rod. The cylinder can drive the slider and the stretching roller to descend, and by adjusting the depth of the connecting rod inserted into the first sleeve, precise control of the stretching force can be achieved. This design enables the device to adjust the stretching force according to the material and thickness of different strapping tapes, avoiding damage or deformation of the strapping tape due to excessive or insufficient stretching force. Through this linkage adjustment mechanism, not only the operational flexibility of the equipment is enhanced, but also the finished product quality of the strapping tape and the controllability of the production process are significantly improved.

[0017] 2. The passive roller device is detachably connected to the front side of the main body through the bottom plate, wherein the working roller is sleeved on the second fixed roller through the second sleeve, and its stable operation is ensured by the limit cap and the first bearing and the second bearing. By removing the limit cap, the working roller can be easily pulled out, and by adjusting the diameter of the working roller, it can adapt to strapping with different thicknesses and widths, thereby improving the versatility and adaptability of the equipment. At the same time, the design of the bearing structure ensures the stability and low friction loss of the working roller during operation.

[0018] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure provided by the utility model;

[0020] Figure 2 It is a plan schematic diagram provided by the utility model;

[0021] Figure 3 It is a schematic diagram of the cylinder provided by the utility model;

[0022] Figure 4 This is a schematic diagram of the passive roller device provided by the utility model;

[0023] Figure 5 It is an exploded schematic diagram of the passive roller device provided by the utility model;

[0024] Figure 6 It is a rear schematic diagram of the passive roller device provided by the utility model.

[0025] In the figure: 1. main body; 2. support leg; 3. slag receiving plate; 4. rectangular groove; 5. cylinder; 6. limit roller device; 7. passive roller device; 70. installation cavity; 71. working roller; 72. bottom plate; 73. first fixed roller; 74. second bearing; 75. second fixed roller; 76. limit cap; 77. second sleeve; 78. first bearing; 79. step portion; 8. reduction motor; 9. first conveying rod; 10. fixed block; 11. guide roller; 12. connecting rod; 13. first sleeve; 14. slider; 15. stretching roller. DETAILED DESCRIPTION

[0026] In order to further understand the content, features and effects of the utility model, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0027] like Figures 1 to 6 As shown, an embodiment of the utility model provides a strapping tape production stretching and shaping device.

[0028] It includes a main body 1, a rectangular groove 4 is opened on the upper front side of the main body 1, a cylinder 5 is arranged on the upper part of the rectangular groove 4, the cylinder 5 is fixedly connected to the front side of the main body 1, a slider 14 is slidably connected inside the rectangular groove 4, a stretching roller 15 is connected to the front side of the slider 14 through a rotating shaft, a connecting rod 12 is fixedly connected to the lower end of the piston rod of the cylinder 5, a first sleeve 13 is fixedly connected to the upper part of the slider 14, the first sleeve 13 is sleeved on the outer side of the connecting rod 12, bolts are respectively connected to the left and right sides of the first sleeve 13, a limiting roller device 6 is arranged at the lower part of the stretching roller 15, and a plurality of passive roller devices 7 are detachably connected to the front side of the main body 1.

[0029] The passive roller device 7 includes a bottom plate 72 , which is connected to the front side of the main body 1 by bolts. A first fixed roller 73 is welded to the front side of the bottom plate 72 , and a second fixed roller 75 is welded to the front side of the first fixed roller 73 .

[0030] A screw hole is formed at the end of the second fixing roller 75 , and the diameter of the second fixing roller 75 is smaller than that of the first fixing roller 73 .

[0031] The working roller 71 is sleeved on the outer side of the second fixed roller 75 , and a second sleeve 77 penetrates and is welded inside the working roller 71 . An accommodating cavity is provided on one side of the working roller 71 , and a limiting cap 76 is provided inside the accommodating cavity.

[0032] The limiting cap 76 is connected to the second fixed roller 75 by bolts. A mounting cavity 70 is provided at the rear side of the limiting cap 76 , and a first bearing 78 is provided inside the mounting cavity 70 .

[0033] The first bearing 78 is sleeved on the front end of the second fixed roller 75 , and the rear end of the second fixed roller 75 is sleeved on the second bearing 74 .

[0034] A step portion 79 is provided inside the rear side of the second sleeve 77 , and the second bearing 74 is disposed inside the step portion 79 .

[0035] The structure of the limiting roller device 6 is the same as that of the passive roller device 7 , and a support leg 2 is welded to the lower part of the main body 1 .

[0036] A slag receiving plate 3 is welded between the support leg 2 and the front side of the main body 1 , a reduction motor 8 is connected to the front side of the main body 1 via bolts, and a first conveying rod 9 is fixedly connected to the output shaft of the reduction motor 8 .

[0037] A fixing block 10 is welded to the left side of the main body 1 , and a guide roller 11 is connected to the front side of the fixing block 10 via a bearing.

[0038] The linkage design between the cylinder 5 and the slider 14 is one of the key innovations of the present invention. The lower end of the piston rod of the cylinder 5 is fixedly connected to the connecting rod 12 and connected to the first sleeve 13 on the slider 14, thereby achieving precise control of the tensile force. This design solves the problem of the difficulty in adjusting the tensile force in the production of traditional strapping tapes, and can flexibly adjust the tensile force according to the different materials and thicknesses of the strapping tapes, thereby ensuring the consistency and stability of the tensile effect.

[0039] The cylinder 5 can precisely control the stretching force by adjusting the depth of the connecting rod 12 inserted into the first sleeve 13. Then the connecting rod 12 drives the slider 14 and the stretching roller 15 to move up and down. This design ensures that the tension of the strapping tape can be precisely controlled during the stretching process, avoiding the strapping tape breaking due to excessive stretching force or insufficient stretching due to too little stretching force.

[0040] By adjusting the stretching force through the cylinder 5 and other structures, the production efficiency of the strapping tape can be significantly improved, and the defective rate caused by improper stretching can be reduced, thereby improving the quality of the finished product.

[0041] The detachable design of the passive roller device 7 is another highlight of the present invention. By connecting the bottom plate 72 to the main body 1 by bolts, and using the working roller 71 in conjunction with the second fixed roller 75, the device can quickly replace the corresponding working roller 71 according to different strapping tape specifications to adapt to strapping tapes of different thicknesses and widths.

[0042] By replacing working rollers 71 of different diameters, the equipment can adapt to strapping belts of different specifications, which greatly improves the versatility and production efficiency of the equipment.

[0043] The detachable design of the passive roller device 7 makes maintenance and replacement simple and quick, thus reducing the cost and time consumption of equipment maintenance.

[0044] By precisely matching the diameter of the working roller 71, the path and tension of the strapping tape during the stretching process can be better controlled, thereby improving the flatness and consistency of the strapping tape.

[0045] The limiting roller device 6 and the passive roller device 7 have the same structure. This design simplifies the overall structure of the device, reduces the manufacturing cost, and also makes the maintenance of the equipment more convenient.

[0046] By sharing similar design elements, complexity is reduced during the design and manufacturing process, helping to lower production costs.

[0047] In summary, the strapping tape production stretching and shaping device provided by the embodiment of the utility model solves the problems existing in the traditional strapping tape production through the key technical points such as the linkage adjustment mechanism between the cylinder 5 and the slider 14, the design of the detachable passive roller device 7, and the structural similarity between the limit roller device 6 and the passive roller device 7, improves the production efficiency and product quality, and reduces the maintenance cost of the equipment. These innovations not only reflect the unique insights of the inventor in design ideas, but also bring substantial progress to the strapping tape production industry.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for stretching and shaping strapping, comprising a main body (1), characterized in that: A rectangular groove (4) is provided at the upper front part of the main body (1), a cylinder (5) is provided at the upper part of the rectangular groove (4), the cylinder (5) is fixedly connected to the front side of the main body (1), a slider (14) is slidably connected inside the rectangular groove (4), the front side of the slider (14) is connected to a stretching roller (15) via a rotating shaft, the lower end of the piston rod of the cylinder (5) is fixedly connected to a connecting rod (12), the upper part of the slider (14) is fixedly connected to a first sleeve (13), the first sleeve (13) is sleeved on the outer side of the connecting rod (12), the left side and the right side of the first sleeve (13) are respectively connected with bolts, a limiting roller device (6) is provided at the lower part of the stretching roller (15), and a plurality of passive roller devices (7) are detachably connected to the front side of the main body (1).

2. A strapping tape production stretching and shaping device according to claim 1, characterized in that: The passive roller device (7) comprises a bottom plate (72), the bottom plate (72) being connected to the front side of the main body (1) by bolts, a first fixed roller (73) being welded to the front side of the bottom plate (72), and a second fixed roller (75) being welded to the front side of the first fixed roller (73).

3. A strapping tape production stretching and shaping device according to claim 2, characterized in that: A screw hole is provided at the end of the second fixed roller (75), and the diameter of the second fixed roller (75) is smaller than that of the first fixed roller (73).

4. A strapping tape production stretching and shaping device according to claim 2, characterized in that: A working roller (71) is sleeved on the outer side of the second fixed roller (75), a second sleeve (77) penetrates and is welded inside the working roller (71), a receiving cavity is provided on one side of the working roller (71), and a limiting cap (76) is provided inside the receiving cavity.

5. A strapping tape production stretching and shaping device according to claim 4, characterized in that: The limiting cap (76) is connected to the second fixed roller (75) via bolts, a mounting cavity (70) is provided at the rear side of the limiting cap (76), and a first bearing (78) is provided inside the mounting cavity (70).

6. A strapping tape production stretching and shaping device according to claim 5, characterized in that: The first bearing (78) is sleeved on the front end of the second fixed roller (75), and the rear end of the second fixed roller (75) is sleeved on the second bearing (74).

7. A strapping tape production stretching and shaping device according to claim 6, characterized in that: A step portion (79) is provided inside the rear side of the second sleeve (77), and the second bearing (74) is arranged inside the step portion (79).

8. A strapping tape production stretching and shaping device according to claim 7, characterized in that: The structure of the limiting roller device (6) is the same as that of the passive roller device (7), and a support leg (2) is welded to the lower part of the main body (1).

9. A strapping tape production stretching and shaping device according to claim 8, characterized in that: A slag receiving plate (3) is welded between the support leg (2) and the front side of the main body (1); a reduction motor (8) is connected to the front side of the main body (1) via bolts; and a first conveying rod (9) is fixedly connected to the output shaft of the reduction motor (8).

10. The device for stretching and shaping strapping according to claim 1, characterized in that: A fixing block (10) is welded on the left side of the main body (1), and a guide roller (11) is connected to the front side of the fixing block (10) via a bearing.

Images