Synchronous belt tension adjusting mechanism of bag making machine

Abstract

The utility model discloses a synchronous belt tension adjusting mechanism of a bag making machine, which comprises a group of vertical mounting plates arranged in parallel, a first adjusting shaft arranged in the middle of the group of mounting plates, a belt wheel arranged on the first adjusting shaft and connected with the first adjusting shaft through a bearing, and a gear arranged on the first adjusting shaft. A rack matched with the gear is arranged on the mounting plate, the first adjusting shaft moves in the length direction of the rack by rotating the first adjusting shaft, the synchronous belt is matched with the belt wheel, a locking block is further arranged on the first adjusting shaft, the first adjusting shaft moves in the horizontal direction by rotating the adjusting handle, and the belt wheel is arranged in the middle of the first adjusting shaft. The synchronous belt is installed on the belt wheel, the purpose of adjusting the tension of the synchronous belt is achieved, after adjustment is completed, the locking block is tightened to limit rotation of the first adjusting shaft, the fixing effect is achieved, and meanwhile the purpose of larger stroke adjustment is achieved in cooperation with position adjustment of the second adjusting shaft.

Description

Technical Field

[0001] The utility model relates to the technical field of bag making machines, in particular to a synchronous belt tension regulating mechanism for bag making machines. Background Art

[0002] Plastic bag making machine is an automated mechanical equipment that cuts and glues plastic film into shape. At this stage, high-quality bag making machines have been fully automated and modularized. The material roll is placed at one end, and after a series of folding and heat sealing, the plastic bag product can be obtained at the discharge end. In the entire bag making machine equipment, the synchronous belt drive is one of the most important mechanical parts.

[0003] Synchronous belt drive generally refers to the rotation of the pulley driven by the motor. The synchronous belt is installed on the synchronous belt pulley, and the parts that need to be displaced are fixed on the synchronous belt. The precise displacement of the parts is achieved by cooperating with various motors. In the bag making machine, the synchronous belt can achieve precise heat sealing and alignment. In actual production, modular equipment needs to be assembled, and there will be some errors in the assembled equipment. This results in the pulleys installed on different modules needing to be connected through the synchronous belt. The distance between them needs to be adjusted to adapt to the fixed length of the synchronous belt. The applicability and simplicity of the traditional adjustment mechanism cannot meet the above requirements. Utility Model Content

[0004] (1) Technical solution

[0005] In order to solve the above technical problems, the utility model provides a timing belt tension adjustment mechanism for a bag making machine.

[0006] The specific technical solutions are:

[0007] The bag-making machine synchronous belt tension adjustment mechanism includes a set of vertical mounting plates arranged in parallel, a first adjustment shaft is provided in the middle of the set of mounting plates, a pulley is provided on the first adjustment shaft, the pulley is connected to the first adjustment shaft through a bearing, a gear is provided on the first adjustment shaft, and a rack is provided on the mounting plate to cooperate with the gear. By rotating the first adjustment shaft, the first adjustment shaft moves along the length direction of the rack, and the synchronous belt cooperates with the pulley. A locking block is also provided on the first adjustment shaft.

[0008] The locking block includes a guide portion, a locking portion and a connecting portion, the guide portion and the locking portion are connected by the connecting portion, a horizontal groove is provided on the mounting plate, the first adjusting shaft passes through the horizontal groove, a protrusion is provided on one side of the guide portion, the protrusion corresponds to the horizontal groove, a through hole is provided on both the guide portion and the locking portion, the first adjusting shaft passes through the through hole, a gap is provided on one side of the through hole of the locking portion, and a locking bolt is provided on the locking portion.

[0009] The locking blocks are provided at both ends of the first adjusting shaft.

[0010] Adjustment handles are also provided at both ends of the first adjustment shaft.

[0011] It also includes a second adjusting shaft, a guide wheel is provided on the second adjusting shaft, the guide wheel is connected to the second adjusting shaft through a bearing, an adjusting groove is provided on the mounting plate, a plurality of limit grooves are provided on the adjusting groove, the limit grooves correspond to the second adjusting shaft, and locking handles are provided at both ends of the second adjusting shaft.

[0012] Screw holes are provided at both ends of the second adjustment shaft, corresponding to the locking handle, and a gasket is provided on the side of the locking handle close to the mounting plate.

[0013] It also includes a plurality of fixed shafts, and the fixed shafts are also provided with guide wheels.

[0014] (2) Beneficial effects

[0015] Compared with the existing technology, the technical solution proposed by the utility model is to move the first adjustment shaft in the horizontal direction by rotating the adjustment handle. A pulley is provided in the middle of the first adjustment shaft, and the synchronous belt is installed on the pulley to achieve the purpose of adjusting the tension of the synchronous belt. When the adjustment is completed, the locking block is tightened to limit the rotation of the first adjustment shaft, thereby achieving a fixing effect. At the same time, the position adjustment of the second adjustment shaft is cooperated with to achieve a larger stroke adjustment purpose. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a schematic structural diagram of the utility model.

[0018] Figure 2 Schematic diagram of the locking block structure.

[0019] Figure 3 Schematic diagram of fixing the second adjustment shaft. DETAILED DESCRIPTION

[0020] The following is a clear and complete description of the technical solutions in the embodiments of the utility model, in conjunction with the accompanying drawings. The described embodiments are only part of the embodiments of the utility model, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making any creative efforts are within the scope of protection of the utility model.

[0021] In the relevant existing technologies, plastic bags with side edges are generally formed by heat-sealing the main materials on the front and back sides and the auxiliary materials corresponding to the side edges. The corresponding bag-making machine needs to have the function of transporting the auxiliary materials to the conveying line of the main material and completing the pre-positioning of the main material and the auxiliary materials. However, most bag-making machines at this stage only have a main material conveying line, and how to transport the auxiliary materials to the designated position and complete the hot-joining of the main material and the auxiliary materials is the main problem that needs to be solved at this stage.

[0022] In order to solve the problems existing in the related prior art, the present invention proposes a bag making machine synchronous belt tension adjustment mechanism. The principle and structure of the present invention are described in detail below with reference to the accompanying drawings and embodiments.

[0023] See also Figures 1 to 3 The utility model proposes a bag-making machine synchronous belt tension adjustment mechanism, including a group of vertical mounting plates 1 set up in parallel, on which other parts of the bag-making machine are also mounted, a first adjusting shaft 2 is provided in the middle of a group of mounting plates 1, a pulley 3 is provided on the first adjusting shaft 2, the pulley 3 is connected to the first adjusting shaft 2 through a bearing, a gear 4 is provided on the first adjusting shaft 2, and a rack 5 that cooperates with the gear 4 is provided on the mounting plate 1. By rotating the first adjusting shaft 2, the first adjusting shaft 2 moves along the length direction of the rack 5, the synchronous belt 6 cooperates with the pulley 3, and a locking block 7 is also provided on the first adjusting shaft 2; in this way When two modules are provided with pulleys 3 and need to be connected with a synchronous belt 6, since the length of the synchronous belt is fixed, in order to ensure that the synchronous belt 6 installed on the pulleys 3 of the two modules has a standard tension, the traditional method can only be to adjust the distance between the two modules, which is obviously more troublesome to adjust. However, through the above steps, it is only necessary to rotate the first adjusting shaft 2, and through the cooperation of the gear 4 and the rack 5, the horizontal movement of the first adjusting shaft 2 can be achieved, thereby achieving the purpose of adjusting the distance. In this way, the tension of the synchronous belt 6 installed on the pulley 3 can be adjusted, and then locked and fixed by the locking block 7.

[0024] Specifically, the locking block 7 includes a guide portion 7a, a locking portion 7b and a connecting portion 7c. The guide portion 7a and the locking portion 7b are connected by the connecting portion 7c. A horizontal groove is provided on the mounting plate 1, and the horizontal groove corresponds to the rack 5. When the gear 4 and the rack 5 are engaged, the first adjustment shaft 2 passes through the horizontal groove. A protrusion 7d is provided on one side of the guide portion 7a. The protrusion 7d corresponds to the horizontal groove. The size of the protrusion 7d corresponds to the horizontal groove. When the first adjustment shaft 2 moves in the horizontal direction, the protrusion 7d is in the horizontal groove. Sliding, the guide part 7a and the locking part 7b are both provided with through holes, the first adjusting shaft 2 passes through the through hole, a slit is provided on one side of the through hole of the locking part 7b, and a locking bolt 7e is provided on the locking part 7b. When the locking bolt 7e is loosened, the first adjusting shaft 2 rotates in the through holes of the guide part 7a and the locking part 7b. When the locking bolt 7e is tightened, the locking part 7b tightens the first adjusting shaft 2, and the protrusion 7d is inside the horizontal groove, which makes the first adjusting shaft 2 unable to rotate, thereby achieving the purpose of limiting and fixing.

[0025] Specifically, locking blocks 7 are provided at both ends of the first adjustment shaft 2 and adjustment handles 8 are also provided at both ends of the first adjustment shaft 2. On the one hand, both ends are ensured to be fixed at the same time to improve stability. At the same time, adjustment handles 8 are provided on both sides to improve the convenience during adjustment.

[0026] See also Figure 1 and Figure 3 , and also includes a second adjusting shaft 9, a guide wheel 10 is provided on the second adjusting shaft 9, the guide wheel 10 is connected to the second adjusting shaft 9 through a bearing, an adjusting groove 11 is provided on the mounting plate 1, and a plurality of limiting grooves 12 are provided on the adjusting groove 11, and the limiting grooves 12 correspond to the second adjusting shaft 9, and locking handles 13 are provided at both ends of the second adjusting shaft 9.

[0027] The first adjustment shaft 2 and the second adjustment shaft 9 cooperate, allowing the second adjustment shaft 9 to slide within the adjustment slot 11 and be secured within any of the limit slots 12 using a locking handle. The timing belt 6, via the pulley 3 and the guide wheel 10, cooperates with each other to enhance tension adjustment. Even with greater misalignment, the tension of the timing belt 6 can be maintained by adjusting the positions of the first and second adjustment shafts 2 and 9. The system also includes several fixed shafts 15, each equipped with a guide wheel 10, enhancing overall adaptability.

[0028] Specifically, screw holes are provided at both ends of the second adjusting shaft 9, corresponding to the locking handle 13. A gasket 14 is provided on the side of the locking handle 13 close to the mounting plate 1. By tightening the locking handle 13, the gasket 14 is pressed against the mounting plate 1 to fix the second adjusting shaft 9. When the position of the second adjusting shaft 9 needs to be adjusted, the locking handle 13 is released.

[0029] The above adjustment method is quick and convenient. It only requires adjusting the locking bolt 7e, the adjusting wrench 8 and the locking handle 13 to achieve the purpose of adjusting the tension of the synchronous belt.

[0030] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. The bag making machine synchronous belt tension adjustment mechanism is characterized by: The invention comprises a group of vertical mounting plates (1) arranged in parallel, a first adjusting shaft (2) being provided in the middle of the group of mounting plates (1), a pulley (3) being provided on the first adjusting shaft (2), the pulley (3) being connected to the first adjusting shaft (2) through a bearing, a gear (4) being provided on the first adjusting shaft (2), a rack (5) being provided on the mounting plate (1) and cooperating with the gear (4), the first adjusting shaft (2) being moved along the length direction of the rack (5) by rotating the first adjusting shaft (2), a synchronous belt (6) being cooperating with the pulley (3), and a locking block (7) being provided on the first adjusting shaft (2); The locking block (7) includes a guide portion (7a), a locking portion (7b) and a connecting portion (7c), wherein the guide portion (7a) and the locking portion (7b) are connected via the connecting portion (7c), a horizontal groove is provided on the mounting plate (1), the first adjusting shaft (2) passes through the horizontal groove, a protrusion (7d) is provided on one side of the guide portion (7a), the protrusion (7d) corresponds to the horizontal groove, a through hole is provided on both the guide portion (7a) and the locking portion (7b), the first adjusting shaft (2) passes through the through hole, a slit is provided on one side of the through hole of the locking portion (7b), and a locking bolt (7e) is provided on the locking portion (7b).

2. The timing belt tension adjustment mechanism for a bag making machine according to claim 1, characterized in that: The locking blocks (7) are provided at both ends of the first adjustment shaft (2).

3. The timing belt tension adjustment mechanism for a bag making machine according to claim 1, characterized in that: Adjustment handles (8) are also provided at both ends of the first adjustment shaft (2).

4. The timing belt tension adjustment mechanism for a bag making machine according to claim 1, characterized in that: The second adjusting shaft (9) is provided with a guide wheel (10), the guide wheel (10) and the second adjusting shaft (9) are connected via a bearing, the mounting plate (1) is provided with an adjusting groove (11), the adjusting groove (11) is provided with a plurality of limiting grooves (12), the limiting grooves (12) correspond to the second adjusting shaft (9), and locking handles (13) are provided at both ends of the second adjusting shaft (9).

5. The timing belt tension adjustment mechanism for a bag making machine according to claim 4, characterized in that: The second adjustment shaft (9) is provided with screw holes at both ends, corresponding to the locking handle (13), and a gasket (14) is provided on the side of the locking handle (13) close to the mounting plate (1).

6. The timing belt tension adjustment mechanism for a bag making machine according to claim 5, characterized in that: It also includes a plurality of fixed shafts (15), and the fixed shafts (15) are also provided with guide wheels (10).

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