Fixed traction device of bag making machine

Abstract

The utility model discloses a fixed traction device of a bag making machine, which relates to the technical field of bag making machines, and comprises a traction roller, a reserved groove is arranged on the traction roller, a fixing mechanism is arranged in the reserved groove, the fixing mechanism comprises sleeve rods, the opposite ends of the two sleeve rods are movably connected with contraction rods, and the ends, extending into the sleeve rods, of the two contraction rods are fixedly connected with pull rods. The ends, extending out of the symmetrical side plates, of the two pull rods are fixedly connected with first pull rings, the first pull rings are pulled to drive the telescopic rods to be placed in the sleeve rods through the pull rods, then the sleeve rods are sleeved with the sleeve openings in the initial ends of the plastic bag bodies, the first pull rings are loosened, the telescopic rods are popped out of the sleeve rods through first reset springs, and the installation openings are closed. A plastic bag body is installed rapidly and stably, an inserting block is inserted into an inserting groove of a movable shaft by manually operating a second pull ring, in the rotating process of the movable shaft, when a clamping block is symmetrical to a penetrating opening and a clamping groove, a second reset spring pops up the clamping block to penetrate through the penetrating opening to be clamped to the clamping groove, and the traction roller is rapidly locked.

Description

Technical Field

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

[0002] A bag making machine is a machine that makes various plastic packaging bags or other material packaging bags. Its processing range is packaging bags of various sizes, thicknesses and specifications of plastics or other materials. Generally speaking, plastic packaging bags are the main products. During the conveying process of the bag making machine, the packaging bags need to be fixed and wrapped around the traction roller for subsequent conveying and transmission.

[0003] The traction device structure of most bag-making machines today is too simple. In the event of a fault, the traction roller cannot be quickly locked, resulting in a poor safety factor. At the same time, the traction roller cannot effectively fix the beginning of the packaging bag and can only be wrapped around the traction roller or pasted, which is unstable and easy to loosen. Utility Model Content

[0004] In order to solve the above problems, the present application provides a fixed traction device for a bag making machine.

[0005] The technical solution adopted by the utility model to solve the technical problem is: a fixed traction device of a bag making machine comprises a traction roller, two ends of the traction roller that are far away from each other are fixedly connected with side plates, one end of the two side plates that are far away from the traction roller is fixedly connected with a movable shaft, a telescopic column is provided on one side of the two side plates that are far away from each other and are movably connected to the top symmetrical end of the telescopic column through the movable shaft respectively, a reserved groove is provided on the traction roller, a plastic bag body is detachably connected to the traction roller, a fixing mechanism is provided in the reserved groove, the fixing mechanism comprises a sleeve rod, two ends of the reserved groove that are far away from each other are fixedly connected with the sleeve rod, the two sleeve rods are movably connected with a contraction rod at one end opposite to the sleeve rod, the two contraction rods are fixedly connected with a pull rod at one end extending into the sleeve rod, and the extension end of the pull rod movably penetrates the symmetrical side plates, the two pull rods are fixedly connected with a first pull ring at one end extending out of the symmetrical side plates, and a first return spring is fixedly connected between one end of the two sleeve rods that are far away from the contraction rod and one end of the symmetrical contraction rod that extends into the sleeve rod, and the first return spring is sleeved on the symmetrical pull rod.

[0006] As a preferred technical solution of the utility model: the opposite ends of the two retractable rods are respectively fixedly connected to the limiting blocks and provided with limiting grooves, the limiting blocks and limiting grooves overlap symmetrically, and the end of the plastic bag body extending into the reserved groove is provided with a sleeve interface, and the plastic bag body is sleeved on the sleeve rod and the retractable rod through the sleeve interface.

[0007] As a preferred technical solution of the utility model: a motor is fixedly mounted on one end of one of the telescopic columns away from the movable shaft, and one end of one of the movable shafts extending out of a symmetrical telescopic column is fixedly connected to the output end of the motor.

[0008] As a preferred technical solution of the utility model: a slot is provided at one end of the other movable shaft extending from the symmetrical telescopic column, and four symmetrical ends of the inner cavity wall of the slot are provided with through-holes, and four ends of the symmetrical through-holes in the cavity wall of the other end where the telescopic column and the movable shaft are movably connected are provided with card slots.

[0009] As a preferred technical solution of the utility model: the slot is plug-inly installed with a locking mechanism, the locking mechanism includes a second pull ring, the second pull ring is fixedly connected to an insertion block at one end relative to the slot, the four symmetrical ends of the insertion block are provided with reset grooves, the four reset grooves are fixedly connected with second reset springs, and the four second reset springs are fixedly connected with a clamping block at one end away from the reset groove.

[0010] As a preferred technical solution of the utility model: the locking mechanism is symmetrically plugged into the slot through the plug-in block, the card block adopts a trapezoidal body design, and the four card blocks are symmetrical with the four through openings and the card slot respectively.

[0011] The utility model has the following advantages:

[0012] (1) The plug block is inserted into the slot of the movable shaft through the manual second pull ring. During the rotation of the movable shaft, when the block is symmetrical with the through-hole and the slot, its second return spring pops out the block through the through-hole and is connected to the slot. In an emergency, the traction roller is quickly locked to improve the safety factor.

[0013] (2) By pulling the first pull ring and using the pull rod to drive the retractable rod to be placed in the sleeve rod, an installation opening is opened between the two telescopic column side plates, and then the plastic bag body is sleeved on the sleeve rod through the sleeve interface at the beginning, and the first pull ring is loosened, and the retractable rod is ejected from the sleeve rod through the first return spring to close the installation opening. The installation of the plastic bag body is fast and stable, and it is not easy to loosen when it is wrapped around the traction roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the planar cross-sectional structure of the utility model;

[0016] Figure 3 It is a planar cross-sectional structural schematic diagram of the movable shaft and the locking mechanism of the utility model.

[0017] Description of reference numerals:

[0018] 1. Traction roller; 11. Reserved groove; 2. Side plate; 3. Movable shaft; 31. Slot; 32. Through-hole; 4. Telescopic column; 41. Card slot; 5. Plastic bag body; 6. Motor; 7. Fixing mechanism; 71. Sleeve rod; 72. Retracting rod; 721. Limit block; 722. Limit groove; 73. Pull rod; 74. First reset spring; 75. First pull ring; 8. Locking mechanism; 81. Second pull ring; 82. Insert block; 83. Reset groove; 84. Second reset spring; 85. Card block. DETAILED DESCRIPTION

[0019] The utility model will be further described below in conjunction with the accompanying drawings.

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0021] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0022] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0023] The following is combined with Figure 1-3 This application is described in further detail.

[0024] The present application embodiment discloses a fixed traction device for a bag making machine, please refer to Figure 1-3, including a traction roller 1, both ends of the traction roller 1 that are far away from each other are fixedly connected with side plates 2, and one end of the two side plates 2 that are far away from the traction roller 1 is fixedly connected with a movable shaft 3, and both sides of the two side plates 2 that are far away from each other are provided with telescopic columns 4 and are respectively movably connected to the top symmetrical ends of the telescopic columns 4 through the movable shaft 3, and a reserved groove 11 is opened on the traction roller 1, and a plastic bag body 5 is detachably connected to the traction roller 1, and a fixing mechanism 7 is arranged in the reserved groove 11, and the fixing mechanism 7 includes a sleeve rod 71, and both ends of the reserved groove 11 that are far away from each other are fixedly connected with the sleeve rod 71 The opposite ends of the two sleeve rods 71 ​​are movably connected with the retractable rods 72, the ends of the two retractable rods 72 extending into the sleeve rods 71 ​​are fixedly connected with the pull rods 73, and the extended ends of the pull rods 73 movably pass through the symmetrical side panels 2, and the ends of the two pull rods 73 extending out of the symmetrical side panels 2 are fixedly connected with the first pull rings 75, and the ends of the two sleeve rods 71 ​​away from the retractable rods 72 are fixedly connected with the first return springs 74 between the ends of the two sleeve rods 71 ​​away from the retractable rods 72 and the ends of the symmetrical retractable rods 72 extending into the sleeve rods 71, and the first return springs 74 are sleeved on the symmetrical pull rods 73.

[0025] In this embodiment, the opposite ends of the two retractable rods 72 are respectively fixedly connected to the limiting blocks 721 and the limiting grooves 722. The limiting blocks 721 and the limiting grooves 722 overlap symmetrically. The end of the plastic bag body 5 extending into the reserved groove 11 is provided with a sleeve interface. The plastic bag body 5 is sleeved on the sleeve rod 71 and the retractable rod 72 through the sleeve interface, which facilitates the sleeve installation and fixation of the plastic bag body 5 with the sleeve rod 71 and the retractable rod 72, which is different from the traditional method of directly sticking or wrapping it around the traction roller 1 and firmly fixing it.

[0026] In this embodiment, a motor 6 is fixedly mounted on one end of one telescopic column 4 away from the movable shaft 3, and one end of one movable shaft 3 extending out of a symmetrical telescopic column 4 is fixedly connected to the output end of the motor 6 to drive the traction roller 1 to rotate.

[0027] In this embodiment, a slot 31 is provided at one end of the other movable shaft 3 extending out of the symmetrical telescopic column 4, and four symmetrical ends of the inner wall of the slot 31 are provided with through-holes 32 to facilitate the insertion of the plug-in block 82, and four ends of the symmetrical through-holes 32 in the inner wall of the movable connection end of the other telescopic column 4 and the movable shaft 3 are provided with card grooves 41 to facilitate the card connection of the card block 85.

[0028] In this embodiment, a locking mechanism 8 is installed in the slot 31, and the locking mechanism 8 includes a second pull ring 81. One end of the second pull ring 81 relative to the slot 31 is fixedly connected to an insert block 82. Reset grooves 83 are provided at four symmetrical ends of the insert block 82. Second reset springs 84 are fixedly connected in the four reset grooves 83. One end of the four second reset springs 84 away from the reset grooves 83 is fixedly connected to a clamping block 85. By pulling the first pull ring 75 and using the pull rod 73 to drive the retracting rod 72 to be placed in the sleeve rod 71, an installation opening is opened between the side plates 2 of the two telescopic columns 4, and then the plastic bag body 5 is sleeved on the sleeve rod 71 through the sleeve interface at the beginning, and the first pull ring 75 is released. The retracting rod 72 is ejected from the sleeve rod 71 by the first reset spring 74 to close the installation opening. The installation of the plastic bag body 5 is fast and stable, and it is not easy to loosen when wrapped around the traction roller 1.

[0029] In this embodiment, the locking mechanism 8 is symmetrically inserted into the slot 31 through the plug block 82. The card block 85 is designed with a trapezoidal body. When the plug block 82 is pulled out, the card block 85 is squeezed into the reset groove 83 by utilizing the missing corner of the trapezoidal body of the card block 85. The plug block 82 can be pulled out smoothly. The four card blocks 85 are symmetrical with the four through openings 32 and the card slot 41 respectively.

[0030] The working principle of the fixed traction device of the bag making machine in the embodiment of the present application is as follows: first pull the first pull rings 75 on both sides of the two side plates 2, and drive the retracting rod 72 to retract into the sleeve rod 71 through the pull rod 73, so that an installation opening is reserved between the two sleeve rods 71, and then the sleeve interface at the beginning of the plastic bag body 5 is sleeved on the two sleeve rods 71 ​​from the installation opening, loosen the first pull ring 75, and the retracting rod 72 is ejected from the sleeve rod 71 by the elastic force of the first return spring 74, and the installation opening is closed by the overlap of the limit block 721 and the limit groove 722 between the two retracting rods 72, and the plastic bag body 5 is sealed. The sleeve interface at the beginning of the bag body 5 is integrally sleeved on the sleeve rod 71 and the retracting rod 72 for effective fixation. The driving motor 6 drives the traction roller 1 to rotate as a whole through the movable shaft 3 to complete the winding and discharge of the plastic bag body 5. When the traction roller 1 rotates, the insertion block 82 can be inserted into the slot 31 of the movable shaft 3 through the second pull ring 81 of the locking mechanism 8. When the block 85 is symmetrical with the through opening 32 and the slot 41, its second return spring 84 pops out the block 85 through the through opening 32 and is connected to the slot 41. In an emergency, the traction roller 1 is quickly locked.

[0031] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A fixed traction device for a bag making machine, comprising a traction roller (1), characterized in that: The two ends of the traction roller (1) that are away from each other are fixedly connected to side plates (2), and one end of the two side plates (2) that are away from the traction roller (1) is fixedly connected to a movable shaft (3). The two sides of the two side plates (2) that are away from each other are provided with telescopic columns (4) and are movably connected to the top symmetrical ends of the telescopic columns (4) through the movable shaft (3). The traction roller (1) is provided with a reserved groove (11), and the traction roller (1) is detachably connected to a plastic bag body (5). A fixing mechanism (7) is provided in the reserved groove (11), and the fixing mechanism (7) includes a sleeve rod (71). The two ends of the reserved groove (11) that are away from each other are fixedly connected to the sleeve rod (71). 1), one opposite end of the two sleeve rods (71) is movably connected with a retractable rod (72), one end of the two retractable rods (72) extending into the sleeve rod (71) is fixedly connected with a pull rod (73), and the extended end of the pull rod (73) movably passes through the symmetrical side plate (2), one end of the two pull rods (73) extending out of the symmetrical side plate (2) is fixedly connected with a first pull ring (75), and one end of the two sleeve rods (71) away from the retractable rod (72) is fixedly connected with a first return spring (74) between each end and one end of the symmetrical retractable rod (72) extending into the sleeve rod (71), and the first return spring (74) is sleeved on the symmetrical pull rod (73).

2. The fixed traction device of the bag making machine according to claim 1, characterized in that: The opposite ends of the two retractable rods (72) are respectively fixedly connected to a limit block (721) and a limit slot (722), the limit block (721) and the limit slot (722) are symmetrically overlapped, and one end of the plastic bag body (5) extending into the reserved slot (11) is provided with a sleeve interface, and the plastic bag body (5) is sleeved on the sleeve rod (71) and the retractable rod (72) through the sleeve interface.

3. The fixed traction device of the bag making machine according to claim 1, characterized in that: A motor (6) is fixedly mounted on one end of one of the telescopic columns (4) away from the movable shaft (3), and one end of one of the movable shafts (3) extending out of the symmetrical telescopic columns (4) is fixedly connected to the output end of the motor (6).

4. The fixed traction device for a bag making machine according to claim 1, characterized in that: Another end of the movable shaft (3) extending out of the symmetrical telescopic column (4) is provided with a slot (31), and four symmetrical ends of the inner cavity wall of the slot (31) are provided with through-holes (32), and four ends of the symmetrical through-holes (32) in the cavity wall of the other end of the telescopic column (4) and the movable shaft (3) are provided with card slots (41).

5. The fixed traction device for bag making machine according to claim 4, characterized in that: The slot (31) is plugged with a locking mechanism (8), the locking mechanism (8) comprising a second pull ring (81), one end of the second pull ring (81) relative to the slot (31) being fixedly connected to an insert block (82), four symmetrical ends of the insert block (82) being provided with reset grooves (83), four reset grooves (83) being fixedly connected to second reset springs (84), and one end of the four second reset springs (84) being away from the reset grooves (83) being fixedly connected to a clamping block (85).

6. The fixed traction device for bag making machine according to claim 5, characterized in that: The locking mechanism (8) is symmetrically plugged into the slot (31) via an insert block (82); the card block (85) is designed as a trapezoidal body; and the four card blocks (85) are symmetrical with the four through openings (32) and the card slot (41), respectively.

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