Height-adjustable traction mechanism of bag sewing machine

Abstract

The utility model relates to the field of bag sewing machines, and discloses a height-adjustable traction mechanism of a bag sewing machine, which comprises a support frame, a support column is fixedly mounted on one side of the support frame, a bag sewing device is arranged at the top of the support column, a fixed inner cavity is formed in the support frame, and support shafts are symmetrically and rotatably mounted in the middles of two sides of the inner wall of the fixed inner cavity; the two sides of the supporting shaft extend out of the supporting frame to be fixedly connected with movable supporting rods, first gears are installed at the positions, located in the fixed inner cavity, of the two side edges of the supporting shaft, and traction supports are symmetrically and movably installed on the two sides of the supporting frame. The traction support is pushed by the movable supporting rod to move up and down for adjustment, so that the effect of conveniently adjusting the overall height of the placement plate and packaging bags on the placement plate is achieved, the applicability of the bag sewing equipment to the packaging bags with different sizes is improved, and the problem that the bag sewing equipment cannot conveniently sew bag openings of the packaging bags with different sizes is solved; and the overall use efficiency of the bag sewing equipment is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of bag sewing machines, in particular to a height-adjustable traction mechanism of a bag sewing machine. BACKGROUND

[0002] A bag sewing machine is a device used for sewing various packaging bags, mainly applied in the industries of grain, chemical industry, feed, fertilizer, etc. It can quickly and firmly sew the opening of a packaging bag filled with materials, ensure that the materials in the bag do not leak, and make the packaging bag easy to carry and store. The traction mechanism is a key component in the bag sewing machine, which is responsible for conveying the packaging bag and ensuring that the packaging bag moves stably at a predetermined speed and direction during the sewing process. Its main function is to accurately send the packaging bag to the sewing area and keep the position of the packaging bag stable during the sewing process, so that the sewing work can be smoothly and uniformly carried out, thereby ensuring the quality and efficiency of bag sewing.

[0003] When sewing the packaging bag, due to the volume difference between different packaging bags, the position of the opening of some packaging bags is high or low. When operating the bag sewing machine, people need to manually adjust the height of the bag sewing machine close to the opening position of the bag. However, the bag sewing machine needs to be repeatedly disassembled and fixed when adjusting the height, which is time-consuming and laborious in operation, thereby affecting the overall sealing operation of the packaging bag and reducing the overall use efficiency of the bag sewing machine.

[0004] For the above-mentioned related technology, the inventors believe that the bag sewing machine has the defect of not being convenient for different sizes of packaging bags when in use, therefore, a height-adjustable traction mechanism of a bag sewing machine is proposed to solve the above problems. CONTENT OF THE UTILITY MODEL

[0005] In order to solve the problem that the bag sewing machine is not convenient for different sizes of packaging bags when in use, the present application provides a height-adjustable traction mechanism of a bag sewing machine.

[0006] The height-adjustable traction mechanism of a bag sewing machine provided by the present application adopts the following technical solution:

[0007] A height-adjustable traction mechanism of a bag sewing machine, comprising a support frame, a support column is fixedly installed on one side of the support frame, a bag sewing device is arranged on the top of the support column, a fixed inner cavity is formed in the inside of the support frame, support shafts are symmetrically and rotatably installed on the inner wall of the fixed inner cavity, movable support rods are fixedly connected to the outside of the support shafts, a first gear is installed on each side of the support shafts inside the fixed inner cavity, traction supports are symmetrically and movably installed on the upper part of the support frame on both sides, fixed guide rails are fixedly connected to the bottom end of the traction supports, guide blocks are fixedly installed on the top of the movable support rods through the fixed guide rails, and a support mechanism is arranged between the two traction supports for supporting the packaging bag.

[0008] Preferably, the supporting mechanism comprises guide rods symmetrically fixedly installed between the two traction supports near the edge portions, outer surfaces of the guide rods movably installed with movable sleeve assemblies, and upper surfaces of the two movable sleeve assemblies fixedly installed with the placing plates.

[0009] Preferably, one side of an outer surface of the supporting shaft is fixedly installed with a second gear, a bottom end of an inner wall of the fixed inner cavity is installed with a band brake servo motor below the second gear, and one side of an output end of the band brake servo motor is installed with a third gear.

[0010] Preferably, the third gear is movably installed with one side of a top portion of an outer surface of the second gear movably installed with a bottom portion of an outer surface of the second gear, and the second gear and the third gear are in mesh with each other.

[0011] Preferably, the two first gears are of the same shape and in mesh with each other.

[0012] To sum up, the application has the following beneficial technical effects:

[0013] By placing the packaging bag on the upper surface of the placing plate, the single supporting shaft is rotated, and another supporting shaft is synchronously rotated in the opposite direction under the connection of the first gear, so as to relatively rotate the movable supporting rod to push the traction support to move up and down, adjust the overall height of the packaging bag placed on the placing plate, and place the bag opening inside the bag sewing device for sewing processing. Compared with the prior art, the application has the effect of conveniently adjusting the overall height of the placing plate and the packaging bag placed thereon, improves the applicability of the bag sewing device to packaging bags of different volumes, solves the problem that the bag sewing device is not convenient for sewing the bag opening of packaging bags of different volumes, and improves the overall use efficiency of the bag sewing device. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 is a schematic diagram of the overall structure of the application embodiment;

[0015] Fig. 2 is a schematic diagram of the structure of the movable sleeve assembly in the application embodiment;

[0016] Fig. 3 is a schematic diagram of the internal structure of the fixed inner cavity in the application embodiment;

[0017] Marked: 1, support frame; 2, supporting column; 3, bag sewing device; 4, fixed inner cavity; 5, supporting shaft; 6, movable supporting rod; 7, first gear; 8, traction support; 9, fixed guide rail; 10, guide block; 11, guide rod; 12, movable sleeve assembly; 13, placing plate; 14, second gear; 15, band brake servo motor; 16, third gear. DETAILED DESCRIPTION

[0018] The application will be further described below with reference to the accompanying drawings. Figs. 1-3 The application will be further described below with reference to the accompanying drawings.

[0019] The application discloses a height-adjustable traction mechanism of a bag sewing machine. Figs. 1-3 The application discloses a height-adjustable traction mechanism of a bag sewing machine.

[0020] By placing the packaging bag on the upper surface of the placement plate 13, the single support shaft 5 drives the two primary gears 7 to rotate in opposite directions, and under the connection of the primary gears 7, the other support shaft 5 is synchronously driven to rotate in the opposite direction, thereby making the movable support rod 6 rotate along the outer surfaces of the support frame 1 on both sides, and the top of the relatively rotating movable support rod 6 drives the guide block 10 to move along the inside of the fixed guide rail 9.

[0021] The support mechanism comprises a guide rod 11, which is symmetrically and fixedly installed between the two traction supports 8 near the edge portions. Fig. 1 Fig. 2 The support mechanism comprises a guide rod 11, which is symmetrically and fixedly installed between the two traction supports 8 near the edge portions.

[0022] By placing the packaging bag on the upper surface of the placement plate 13, the single support shaft 5 drives the two primary gears 7 to rotate in opposite directions, and under the connection of the primary gears 7, the other support shaft 5 is synchronously driven to rotate in the opposite direction, thereby making the movable support rod 6 rotate along the outer surfaces of the support frame 1 on both sides, and the top of the relatively rotating movable support rod 6 drives the guide block 10 to move along the inside of the fixed guide rail 9.

[0023] The support mechanism comprises a guide rod 11, which is symmetrically and fixedly installed between the two traction supports 8 near the edge portions. Fig. 3 ​The middle part of the outer surface of the single support shaft 5 is fixedly provided with a second gear 14, the bottom end of the inner cavity 4 is fixedly provided with a brake servo motor 15 near the lower part of the second gear 14, the output end of the brake servo motor 15 is provided with a third gear 16, and the outer surface of the third gear 16 is movably arranged near the bottom of the outer surface of the second gear 14. The second gear 14 and the third gear 16 are in meshing engagement.

[0024] The brake servo motor 15 is started to drive the third gear 16 to rotate, so that the third gear 16 drives the brake servo motor 15 and the single support shaft 5 to rotate. The support frame 1 is further provided with a PLC controller connected with the brake servo motor 15 start-stop switch, which is used to control the overall rotation angle of the support shaft 5.

[0025] Firstly, the parameters are set and the instructions are received. The operator inputs the rotation angle, speed, direction and other parameters of the support shaft 5 into the PLC controller. When the start instruction is received, the PLC starts to execute the control program. Then, the pulse signal output and the drive control are carried out. The PLC sends pulse signals to the motor driver through the high-speed pulse output port, and the number of the pulse signals corresponds to the rotation angle of the third gear 16. At the same time, the direction control signal is sent through the digital output port to determine the rotation direction, and the rotation speed is controlled by adjusting the pulse frequency.

[0026] The implementation principle of the height-adjustable traction mechanism of the bag sewing machine is as follows: the packaging bag is placed on the upper surface of the placing plate 13, the clutch servo motor 15 is started to drive the third gear 16 to rotate, the third gear 16 drives the clutch servo motor 15 and the single support shaft 5 to rotate, the single support shaft 5 drives the two first gears 7 to rotate in opposite directions, and drives the other support shaft 5 to rotate in the opposite direction synchronously under the connection of the first gear 7, and then the movable supporting rod 6 rotates along the two sides of the outer surface of the supporting frame 1 to open and close each other, the top of the relatively rotating movable supporting rod 6 drives the guide supporting block 10 to move along the inside of the fixed guide rail 9, when the two guide supporting blocks 10 on the same side move close to each other, the movable supporting rod 6 pushes the traction support 8 to move upward, when the two guide supporting blocks 10 on the same side move away from each other, the movable supporting rod 6 pushes the traction support 8 to move downward, and then the movable supporting rod 6 adjusts the whole lifting movement of the traction support 8 and the guide rod 11, adjusts the overall height of the packaging bag placed on the placing plate 13, pulls the placing plate 13 to make the movable sleeve 12 move along the outer surface of the guide rod 11, makes the bag opening of the packaging bag move through the bag sewing position below the bag sewing device 3, and makes the bag sewing device 3 sew the bag opening of the packaging bag in movement. The supporting frame 1 is externally provided with a PLC controller connected with the on-off switch of the clutch servo motor 15, which is used for controlling the overall rotation angle of the support shaft 5, and the input end of the power supply of the clutch servo motor 15 is electrically connected with the output end of the external power supply. Compared with the prior art, the present scheme has the effect of conveniently adjusting the overall height of the placing plate 13 and the packaging bag placed thereon, improves the applicability of the bag sewing device 3 to packaging bags of different sizes, solves the problem that the bag sewing device 3 is not convenient for sewing the bag openings of packaging bags of different sizes, and improves the overall use efficiency of the bag sewing device 3.

[0027] Finally, it should be pointed out that: first of all, in the description of the present application, it should be pointed out that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, which can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, "up", "down", "left", "right" and the like are only used to represent the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change;

[0028] Secondly: the utility model discloses the embodiment in the drawing, only relate to the structure involved in the embodiment of the present disclosure, other structures can refer to the usual design, under the condition of no conflict, the same embodiment and different embodiments of the utility model can be combined with each other.

[0029] Finally: the preferred embodiments of the utility model are described above, and are not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

[0030] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: all equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A height-adjustable traction mechanism for a bag-sewing machine, comprising a support frame (1), a support column (2) fixedly installed on one side of the support frame (1), and a bag-sewing device (3) provided on the top of the support column (2), characterized in that: The support frame (1) has a fixed inner cavity (4) inside. Support shafts (5) are symmetrically and rotatably installed on the middle of the inner walls of the fixed inner cavity (4). Movable support rods (6) are fixedly connected to the outside of the support frame (1) on both sides of the support shafts (5). A gear (7) is installed on both sides of the support shafts (5) inside the fixed inner cavity (4). Traction brackets (8) are symmetrically and movably installed on both sides of the support frame (1) above the support frame (1). Fixed guide rails (9) are fixedly connected to both sides of the bottom end of the traction brackets (8). Guide blocks (10) are fixedly installed on both sides of the movable support rods (6) through the fixed guide rails (9). A support mechanism is also provided between the two traction brackets (8) for moving support of the packaging bag.

2. The height-adjustable traction mechanism for a bag-sewing machine according to claim 1, characterized in that: The support mechanism includes a guide rod (11), which is symmetrically fixedly installed between two traction brackets (8) near the edge. A movable kit (12) is movably installed on the outer surface of the guide rod (11), and a placement plate (13) is fixedly installed on the upper surface of the two movable kits (12).

3. The height-adjustable traction mechanism for a bag-sewing machine according to claim 1, characterized in that: A second gear (14) is fixedly installed on the middle of one side of the outer surface of a single support shaft (5). A brake servo motor (15) is installed at the bottom of the inner wall of the fixed cavity (4) near the second gear (14). A third gear (16) is installed at the output end of one side of the brake servo motor (15).

4. The height-adjustable traction mechanism for a bag-sewing machine according to claim 3, characterized in that: The top of one side of the outer surface of the No. 3 gear (16) moves close to the bottom of the outer surface of the No. 2 gear (14), and the No. 2 gear (14) and the No. 3 gear (16) mesh with each other.

5. The height-adjustable traction mechanism for a bag-sewing machine according to claim 1, characterized in that: The two No. 1 gears (7) have the same shape and structure, and the two No. 1 gears (7) mesh with each other.

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