PET packing belt stretching structure

Abstract

The utility model discloses a PET packing belt stretching structure which comprises a stretching box, two threaded sleeves are connected to the stretching box in a sliding mode through a driving mechanism, a tension tester is arranged on the bottom face of one threaded sleeve, and a stretching oil cylinder is fixedly installed on the top face of the other threaded sleeve. When the PET packing belt clamping device is used, operation is easy, a PET packing belt can be clamped on the clamping seats in an initial state through the springs and is difficult to fall off, meanwhile, the PET packing belt can be clamped on the clamping seats in the initial state through the threaded grooves, the PET packing belt can be clamped on the clamping seats in the initial state through the clamping seats, and the PET packing belt can be clamped on the clamping seats in the initial state through the threaded grooves. The two clamping seats can be tightly fixed through external screws, so that the side edge of the packing belt is clamped, and the longitudinal toughness strength of the packing belt can be conveniently measured.

Description

Technical Field

[0001] The utility model relates to the field of PET strapping belt stretching, in particular to a PET strapping belt stretching structure. Background Art

[0002] PET strapping tape, also known as plastic-steel strapping tape, is a strapping tape made of polyethylene terephthalate (PET) as the main raw material through extrusion and unidirectional stretching. It has the advantages of high strength, high toughness, wear resistance, corrosion resistance, etc., and is widely used in packaging, transportation and other fields.

[0003] In order to ensure that the strapping tape can ensure a reliable packaging effect after production, it is usually necessary to measure the toughness of the strapping tape after production is completed in order to test whether it meets the standards.

[0004] In Chinese utility model patents, for example, the utility model of CN215296969U discloses a strapping belt toughness testing device, which has a simple structure and a reasonable design, and can facilitate the fixing of the strapping belt and prevent the strapping belt from slipping.

[0005] However, during the use of this technology, the two ends of the strapping tape are respectively vertically stuck in the tape groove and wound on the tape winding shaft, thereby controlling the lifting and lowering of the stretching cylinder to separate the two ends of the strapping tape, and then the strapping tape is firmly fixed through the friction between the strapping tapes. However, when the strapping tape is initially stuck in the tape groove, since the surface of the PET strapping tape is relatively smooth and the friction is small, it is easy to cause the strapping tape to slip only by being stuck in the tape groove. Moreover, when the longitudinal toughness of the strapping tape is tested, it is difficult to stick the strapping tape in the tape groove due to its small width. Utility Model Content

[0006] The utility model aims to solve the problems in the background technology and proposes a PET packing belt stretching structure.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A PET strapping stretching structure, comprising a stretching box, wherein two threaded sleeves are slidably connected to the stretching box through a driving mechanism, wherein a tensile tester is provided on the bottom surface of one of the threaded sleeves, and a tensile oil cylinder is fixedly installed on the top surface of the other threaded sleeve, and two fixing seats are symmetrically installed on the sides of the tensile tester and the tensile oil cylinder, and a fixing assembly is installed on the two fixing seats corresponding to each other;

[0009] The fixing assembly includes two clamping seats, and each clamping seat is slidably connected to a fixing seat at a corresponding position. Each clamping seat is provided with a plurality of threaded grooves, and each clamping seat is provided with a plurality of grooves, and a telescopic rod is installed in common between two corresponding grooves, and each telescopic rod is sleeved with a spring.

[0010] Preferably, the driving mechanism includes a plurality of double-headed screws, and each double-headed screw is rotatably connected in the stretching box, and the plurality of double-headed screws are connected by a synchronization component, and each threaded sleeve is threadedly connected to the double-headed screw, a fixing frame is fixedly installed on the top surface of the stretching box, a motor is fixedly installed on the top surface of the fixing frame, and the output shaft of the motor passes through the fixing frame and is connected to one of the double-headed screws.

[0011] Preferably, the synchronization component includes two synchronization wheels, and the two synchronization wheels are respectively installed on double-headed screws at corresponding positions, and the two synchronization wheels are jointly sleeved with a synchronization belt.

[0012] Preferably, brackets are fixedly mounted on the sides of the two fixing seats, and the two brackets are rotatably connected to a rotating shaft.

[0013] Preferably, a slide groove is provided in each of the fixing seats, and the clamping seats corresponding to the positions are slidably connected in the slide groove.

[0014] Preferably, each of the clamping seats is arranged in an arc shape, and an anti-slip pad is bonded inside each of the clamping seats.

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

[0016] 1. The utility model realizes the synchronous rotation of two double-headed screws at the same speed by setting up devices such as motors, synchronous wheels, and synchronous belts, so that the threaded sleeve moves more smoothly and does not tilt, making the measurement result more accurate.

[0017] 2. The utility model realizes that the two clamping seats clamp the strapping tape in the initial state by arranging the telescopic rod, spring and other devices, and the strapping tape is wound around the two clamping seats, thereby increasing the friction force and preventing the strapping tape from falling.

[0018] 3. The utility model provides devices such as thread grooves, and can fix two clamping seats tightly through external screws, thereby clamping the side of the strapping belt, which is convenient for measuring the longitudinal toughness strength of the strapping belt.

[0019] To sum up, when the utility model is used, the operation is simple, the PET strapping tape can be clamped on the clamping seat in the initial state by the spring, and it is difficult to fall off, and at the same time, through the opening of the threaded groove, the two clamping seats can be tightly fixed by the external screws, and then the side of the strapping tape can be clamped, which is convenient for measuring the longitudinal toughness strength of the strapping tape. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural schematic diagram of a PET strapping stretching structure proposed by the utility model;

[0021] Figure 2 This is a schematic diagram of the connection structure of the fixed components of a PET strapping stretching structure proposed by the utility model;

[0022] Figure 3 The utility model provides a schematic cross-sectional structure diagram of a clamping seat of a PET strapping stretching structure.

[0023] In the figure: 1 stretching box, 2 double-headed screw, 3 threaded sleeve, 4 stretching cylinder, 5 tension tester, 6 synchronous wheel, 7 synchronous belt, 8 fixed frame, 9 motor, 10 fixed seat, 11 slide groove, 12 clamp seat, 13 threaded groove, 14 rotating shaft, 15 telescopic rod, 16 spring. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] Reference Figure 1-3 , a PET strapping stretching structure, comprising a stretching box 1, two threaded sleeves 3 are slidably connected to the stretching box 1 through a driving mechanism, the driving mechanism comprises a plurality of double-headed screws 2, and each double-headed screw 2 is rotatably connected to the stretching box 1, and the plurality of double-headed screws 2 are connected through a synchronous assembly, and each threaded sleeve 3 is threadedly connected to the double-headed screw 2, a fixing frame 8 is fixedly installed on the top surface of the stretching box 1, a motor 9 is fixedly installed on the top surface of the fixing frame 8, and the output shaft of the motor 9 passes through the fixing frame 8 and is connected to one of the double-headed screws 2, and the two double-headed screws 2 restrict each other, thereby limiting the threaded sleeve 3 so that it cannot rotate, and then the two threaded sleeves 3 move toward each other, and at the same time, the two double-headed screws 2 are symmetrically arranged, so that the threaded sleeve 3 is more stable during the movement and avoids tilting;

[0026] Furthermore, the synchronization component includes two synchronization wheels 6, and the two synchronization wheels 6 are respectively installed on the double-headed screw rods 2 at corresponding positions. The two synchronization wheels 6 are jointly sleeved with a synchronization belt 7. The synchronization component makes the rotation speed of the two double-headed screw rods 2 the same, thereby making the threaded sleeve 3 move smoothly.

[0027] Furthermore, a tension tester 5 is provided on the bottom surface of one of the threaded sleeves 3, and a stretching cylinder 4 is fixedly installed on the top surface of the other threaded sleeve 3. Two fixing seats 10 are symmetrically installed on the sides of the tension tester 5 and the stretching cylinder 4. The two fixing seats 10 at corresponding positions are jointly installed with a fixing component, and the two ends of the strapping belt are fixed respectively by the fixing component, thereby driving the stretching cylinder 4 to stretch one end of the strapping belt, and the breaking peak value of the strapping belt is recorded by the tension tester 5;

[0028] Furthermore, brackets are fixedly installed on the sides of the two fixing seats 10, and the two brackets are connected to the rotating shaft 14 for rotation together. The rotating shaft 14 can guide the strapping tape wound on the two clamping seats 12, play a guiding role, and can further increase the friction of the strapping tape wound on the clamping seat 12;

[0029] It should be noted that the fixing assembly includes two clamping seats 12, each of which is arranged in an arc shape to prevent the strapping tape from being damaged by the edges and corners of the clamping seat 12 during the winding process, thereby affecting the final test effect. An anti-slip pad is bonded inside each clamping seat 12 to further increase the friction force, and each clamping seat 12 is slidably connected to the corresponding fixed seat 10, and each fixed seat 10 is provided with a slide groove 11, and the corresponding clamping seat 12 is slidably connected to the slide groove 11;

[0030] Furthermore, each clamp seat 12 is provided with a plurality of thread grooves 13, which are threadedly connected in the thread grooves 13 by screws, so that the two clamp seats 12 can be firmly fixed, thereby fixing and clamping the side of the strapping tape, facilitating the measurement of the longitudinal toughness of the strapping tape.

[0031] Furthermore, each clamping seat 12 is provided with a plurality of grooves, and two corresponding grooves are jointly installed with a telescopic rod 15, and each telescopic rod 15 is sleeved with a spring 16. Through the action of the spring 16, the two clamping seats 12 can be combined to clamp the guide belt during the initial rolling, thereby playing a clamping and fixing role, preventing the packing belt from falling off, and facilitating the next operation.

[0032] When the utility model is used, first, one end of the strapping tape passes through the two clamping seats 12, and is arranged by the spring 16 and the telescopic rod 15 between the two clamping seats 12, so as to clamp and fix the strapping tape, then the strapping tape is wound around the two clamping seats 12, and guided downward by the rotating shaft 14, and then the other end of the strapping tape is fixed in the same way, and the two clamping seats 12 are clamped and fixed to the strapping tape by the spring 16, and the friction between the strapping tapes is increased by winding, so as to prevent the strapping tape from slipping when the tensile test is not performed;

[0033] Then the motor 9 can be started, and the two double-headed screws 2 can be synchronously driven to rotate through the synchronization component, thereby driving the two thread grooves 13 to move toward each other, so that the strapping belt is tightened, and then the motor 9 is stopped, and then the stretching cylinder 4 is started, and one end of the strapping belt is stretched by the stretching cylinder 4, and then the peak value of the strapping belt breakage is measured and recorded by the tensile tester 5;

[0034] It is worth noting that each clamp seat 12 is provided with a threaded groove 13, and the two clamp seats 12 can be tightly fixed by external screws, thereby clamping the side of the strapping tape, which is convenient for measuring the longitudinal toughness strength of the strapping tape.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A PET strapping stretching structure, comprising a stretching box (1), characterized in that: The stretching box (1) is slidably connected to two threaded sleeves (3) via a driving mechanism, a tension tester (5) is provided on the bottom surface of one of the threaded sleeves (3), a tension cylinder (4) is fixedly installed on the top surface of the other threaded sleeve (3), two fixing seats (10) are symmetrically installed on the sides of the tension tester (5) and the tension cylinder (4), and a fixing component is installed together on the two fixing seats (10) at corresponding positions; The fixing assembly comprises two clamping seats (12), and each clamping seat (12) is slidably connected to a fixing seat (10) at a corresponding position, each clamping seat (12) is provided with a plurality of threaded grooves (13), each clamping seat (12) is provided with a plurality of grooves, and two grooves at corresponding positions are jointly provided with a telescopic rod (15), and each telescopic rod (15) is sleeved with a spring (16).

2. A PET strapping stretching structure according to claim 1, characterized in that: The driving mechanism comprises a plurality of double-headed screws (2), and each double-headed screw (2) is rotatably connected in a stretching box (1), and the plurality of double-headed screws (2) are connected via a synchronous assembly, and each threaded sleeve (3) is threadedly connected to the double-headed screw (2), a fixing frame (8) is fixedly mounted on the top surface of the stretching box (1), a motor (9) is fixedly mounted on the top surface of the fixing frame (8), and an output shaft of the motor (9) passes through the fixing frame (8) and is connected to one of the double-headed screws (2).

3. A PET strapping stretching structure according to claim 2, characterized in that: The synchronous assembly comprises two synchronous wheels (6), and the two synchronous wheels (6) are respectively mounted on double-headed screws (2) at corresponding positions, and the two synchronous wheels (6) are jointly sleeved with a synchronous belt (7).

4. A PET strapping stretching structure according to claim 3, characterized in that: Brackets are fixedly mounted on the sides of the two fixing seats (10), and the two brackets are rotatably connected to a rotating shaft (14).

5. A PET strapping stretching structure according to claim 4, characterized in that: A sliding groove (11) is provided in each of the fixing seats (10), and a clamping seat (12) corresponding to the position is slidably connected in the sliding groove (11).

6. A PET strapping stretching structure according to claim 5, characterized in that: Each of the clamping seats (12) is arranged in an arc shape, and an anti-skid pad is bonded inside each of the clamping seats (12).

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