Traction device of bag making machine

Abstract

The utility model discloses a traction device of a bag making machine, which belongs to the field of bag making machines and comprises a rack, a driving roller and an auxiliary roller are rotatably mounted on the rack, a driving component used for driving the driving roller to rotate is arranged on one side of the rack, mounting grooves are formed in two sides of the rack, mounting seats are slidably mounted in the mounting grooves, and the auxiliary roller is mounted on the rack. The auxiliary roller is rotatably mounted between the two mounting seats, a screw rod is rotatably mounted on one side of the mounting groove, the mounting seats are in threaded sleeving connection with the screw rod, a storage groove is formed in the position, below the screw rod, in the rack, and the storage groove is provided with an adjusting part used for driving the screw rod to rotate; through the arrangement of the mounting grooves, the mounting seats, the screw rods and the adjusting pieces, the adjusting pieces can be used for driving the auxiliary rollers to ascend and descend, so that the distance between the two guide rollers can be adjusted according to the thickness of a packaging bag, the friction force between the guide rollers and the packaging bag is kept moderate, and the adaptability is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of bag making machines, and in particular relates to a traction device of a bag making machine. Background Art

[0002] The three-side sealing bag making machine adopts PLC microcomputer control, dual servo dual frequency conversion speed regulation, photoelectric monitoring and correction, pneumatic transmission and other technologies, integrating machine and photoelectricity. It adopts full-automatic unwinding, cutting, tension adjustment control system, five-row bridge-type longitudinal sealing hot knife heat sealing and circulating water cooling bonding device, heating temperature Pc control, and various special-shaped bag auxiliary bag making devices can be added as needed.

[0003] Existing three-side sealing bag making machines mostly use cold cutting to cut the raw materials for packaging bags. Since plastic itself has a certain toughness, cold cutting can easily cause uneven cutting of the raw materials for packaging bags. The bag making machine mostly uses a single conveyor belt to transmit the bags, which results in a slow transmission speed. Therefore, a rubber sleeve is provided on the transmission roller to increase the friction between the transmission roller and the packaging bag to ensure that the packaging bag can be accurately transmitted forward.

[0004] The existing Chinese patent with the announcement number CN211054543U discloses a traction device for a bag making machine, including a frame, a rubber roller group for driving the plastic bag to be transported forward is rotatably connected to the frame, and a driving component for driving the rubber roller group to rotate is connected to the rubber roller group; the rubber roller group includes two guide rollers 1 and 2 with the same structure, and both the guide rollers 1 and 2 can be detachably connected to the frame, and both the guide rollers 1 and 2 are provided with rubber pads, which are detachably connected to the guide rollers 1 and 2.

[0005] With respect to the above-mentioned related technologies, the inventors found that there are at least the following problems in the technology: in actual use, the distance between the two guide rollers is fixed. If the thickness of the packaging bag is large, the friction between the guide roller and the packaging bag is likely to be too large, which may easily damage the packaging bag. If the thickness of the packaging bag is small, the friction between the guide roller and the packaging bag is likely to be too small, which may affect the transmission effect of the packaging bag and result in poor adaptability. Utility Model Content

[0006] The purpose of the utility model is to provide a traction device for a bag making machine to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a traction device of a bag making machine, comprising a frame, on which a driving roller and an auxiliary roller are rotatably installed, one side of the frame is provided with a driving component for driving the driving roller to rotate, both sides of the frame are provided with mounting grooves, a mounting seat is slidably installed in the mounting groove, the auxiliary roller is rotatably installed between the two mounting seats, a screw is rotatably installed on one side of the mounting groove, the mounting seat is threadedly sleeved on the screw, a storage groove is provided inside the frame below the screw, and the storage groove is provided with an adjusting member for driving the screw to rotate.

[0008] As a preferred embodiment, the driving assembly includes a motor, a driving wheel and a driven wheel. The motor is fixedly mounted on the outer wall of the frame, the output end of the motor is fixedly connected to the driving wheel, the driving wheel and the driven wheel are linked by a belt, and the driven wheel is fixedly mounted on one end of the driving roller.

[0009] As a preferred embodiment, the outer circumferences of the driving roller and the auxiliary roller are both covered with detachable rubber pads.

[0010] As a preferred embodiment, the adjusting member includes a handle, a worm and a worm wheel, the handle is rotatably mounted on the outer side wall of the frame, the handle is coaxially fixed with the worm, the worm and the worm wheel are meshed, and the worm wheel is fixedly connected to the lower end of the screw.

[0011] As a preferred implementation, a guide rod is fixedly connected to a side of the mounting groove away from the screw rod, and the mounting seat is slidably sleeved on the guide rod.

[0012] As a preferred embodiment, the mounting seat includes two mounting blocks hinged to each other, a bearing is abutted between the two mounting blocks, one end of the auxiliary roller is inserted into the bearing, and the tops of the two mounting blocks are fixed by bolts.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The traction device of the bag making machine, through the arrangement of the mounting groove, the mounting seat, the screw and the adjusting piece, can use the handle to rotate the worm, so that the worm drives the worm wheel to rotate, so that the worm wheel drives the screw to rotate, so that the screw drives the mounting seat to move vertically, so that the mounting seat drives the auxiliary roller to move up and down, so that the distance between the two guide rollers can be adjusted according to the thickness of the packaging bag, so that the friction between the guide roller and the packaging bag is kept moderate, and the adaptability is improved;

[0015] The traction device of the bag making machine is configured such that the mounting seat is split into two mounting blocks hinged to each other. When the auxiliary roller needs to be disassembled, the bolts can be loosened to separate the two mounting seats, thereby facilitating the disassembly of the auxiliary roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the auxiliary roller of the utility model;

[0018] Figure 3 It is a side cross-sectional structural schematic diagram of the frame of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the mounting seat of the utility model.

[0020] In the figure: 1. frame; 2. driving roller; 3. auxiliary roller; 4. driving assembly; 41. motor; 42. driving wheel; 43. driven wheel; 5. mounting groove; 6. mounting seat; 61. mounting block; 62. bearing; 7. screw; 8. storage groove; 9. adjusting piece; 91. handle; 92. worm; 93. worm wheel; 10. rubber pad; 11. guide rod. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the embodiments.

[0022] The following examples are used to illustrate the present invention, but cannot be used to limit the scope of protection of the present invention. The conditions in the examples can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0023] See also Figure 1-4 The utility model provides a traction device for a bag making machine, including a frame 1, on which a driving roller 2 and an auxiliary roller 3 are rotatably mounted, and a detachable rubber pad 10 is mounted on the outer circumference of the driving roller 2 and the auxiliary roller 3, and the friction between the driving roller 2 and the auxiliary roller 3 and the packaging bag can be increased by the rubber pad 10. A driving assembly 4 for driving the driving roller 2 to rotate is provided on one side of the frame 1, and the driving assembly 4 includes a motor 41, a driving wheel 42 and a driven wheel 43. The motor 41 is fixedly mounted on the outer side wall of the frame 1, and the output end of the motor 41 is fixedly connected to the driving wheel 42, and the driving wheel 42 and the driven wheel 43 are linked by a belt, and the driven wheel 43 is fixedly mounted on one end of the driving roller 2. Through the setting of the driving assembly 4, the motor 41 can be started to drive the driving wheel 42 to rotate, so that the driving wheel 42 drives the driven wheel 43 to rotate through the belt, and the driven wheel 43 drives the driving roller 2 to rotate, so that the driving roller 2 cooperates with the auxiliary roller 3 to transmit the packaging bag.

[0024] Both sides of the frame 1 are provided with mounting grooves 5, and mounting seats 6 are slidably installed in the mounting grooves 5. The auxiliary roller 3 is rotatably installed between the two mounting seats 6. A screw rod 7 is rotatably installed on one side of the mounting groove 5. The mounting seat 6 is threadedly sleeved on the screw rod 7. A guide rod 11 is fixedly connected to the side of the mounting groove 5 away from the screw rod 7. The mounting seat 6 is slidably sleeved on the guide rod 11. A storage groove 8 is provided below the screw rod 7 inside the frame 1. The storage groove 8 is provided with an adjusting member 9 for driving the screw rod 7 to rotate. The adjusting member 9 includes a handle 91, a worm 92 and a worm gear 93. The handle 91 is rotatably installed on the frame 1, a handle 91 is coaxially fixed with a worm 92, the worm 92 is meshed with a worm wheel 93, and the worm wheel 93 is fixedly connected to the lower end of the screw 7. Through the arrangement of the mounting groove 5, the mounting seat 6, the screw 7 and the adjusting member 9, the handle 91 can be used to rotate the worm 92, so that the worm 92 drives the worm wheel 93 to rotate, so that the worm wheel 93 drives the screw 7 to rotate, so that the screw 7 drives the mounting seat 6 to move vertically, and the mounting seat 6 drives the auxiliary roller 3 to rise and fall, so that the distance between the two guide rollers can be adjusted according to the thickness of the packaging bag, so that the friction between the guide roller and the packaging bag is kept moderate, thereby improving the adaptability.

[0025] Among them, the mounting seat 6 includes two mounting blocks 61 hinged to each other, a bearing 62 is abutted between the two mounting blocks 61, one end of the auxiliary roller 3 is inserted into the bearing 62, and the tops of the two mounting blocks 61 are fixed by bolts. By splitting the mounting seat 6 into two mounting blocks 61 hinged to each other, when the auxiliary roller 3 needs to be disassembled, the bolts can be loosened to separate the two mounting seats 6, which facilitates the disassembly of the auxiliary roller 3.

[0026] The working principle and use process of the utility model are as follows: first, through the setting of the driving component 4, the motor 41 can be started to drive the driving wheel 42 to rotate, so that the driving wheel 42 drives the driven wheel 43 to rotate through the belt, so that the driven wheel 43 drives the driving roller 2 to rotate, so that the driving roller 2 cooperates with the auxiliary roller 3 to transmit the packaging bag, and through the setting of the installation groove 5, the mounting seat 6, the screw 7 and the adjusting member 9, the handle 91 can be used to rotate the worm 92, so that the worm 92 drives the worm wheel 93 to rotate, so that the worm wheel 93 drives the screw 7 to rotate, so that the screw 7 drives the mounting seat 6 to move vertically, and the mounting seat 6 drives the auxiliary roller 3 to rise and fall, so that the distance between the two guide rollers can be adjusted according to the thickness of the packaging bag, so that the friction between the guide roller and the packaging bag is kept moderate, thereby improving adaptability.

[0027] 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 traction device for a bag making machine, comprising a frame (1), characterized in that: A driving roller (2) and an auxiliary roller (3) are rotatably mounted on the frame (1); a driving assembly (4) for driving the driving roller (2) to rotate is provided on one side of the frame (1); mounting grooves (5) are provided on both sides of the frame (1); a mounting seat (6) is slidably mounted in the mounting groove (5); the auxiliary roller (3) is rotatably mounted between the two mounting seats (6); a screw rod (7) is rotatably mounted on one side of the mounting groove (5); the mounting seat (6) is threadedly sleeved on the screw rod (7); a storage groove (8) is provided inside the frame (1) below the screw rod (7); the storage groove (8) is provided with an adjusting member (9) for driving the screw rod (7) to rotate.

2. A traction device for a bag making machine according to claim 1, characterized in that: The driving assembly (4) comprises a motor (41), a driving wheel (42) and a driven wheel (43); the motor (41) is fixedly mounted on the outer side wall of the frame (1); the output end of the motor (41) is fixedly connected to the driving wheel (42); the driving wheel (42) and the driven wheel (43) are linked via a belt; and the driven wheel (43) is fixedly mounted on one end of the driving roller (2).

3. The traction device of a bag making machine according to claim 1, characterized in that: The outer circumferences of the driving roller (2) and the auxiliary roller (3) are both provided with detachable rubber pads (10).

4. The traction device of a bag making machine according to claim 1, characterized in that: The adjusting member (9) comprises a handle (91), a worm (92) and a worm wheel (93); the handle (91) is rotatably mounted on the outer wall of the frame (1); the handle (91) is coaxially fixed with the worm (92); the worm (92) and the worm wheel (93) are meshed; and the worm wheel (93) is fixedly connected to the lower end of the screw (7).

5. The traction device of a bag making machine according to claim 1, characterized in that: A guide rod (11) is fixedly connected to the side of the installation groove (5) away from the screw rod (7), and the installation seat (6) is slidably sleeved on the guide rod (11).

6. The traction device of a bag making machine according to claim 1, characterized in that: The mounting seat (6) comprises two mounting blocks (61) hinged to each other, a bearing (62) abutting against the two mounting blocks (61), one end of the auxiliary roller (3) is inserted into the bearing (62), and the tops of the two mounting blocks (61) are fixed by bolts.

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