Stretching guide device for plastic packaging bag processing

Abstract

The utility model discloses a stretching guiding device for plastic packaging bag processing, which belongs to the technical field of packaging bag processing, and comprises a bottom plate, two supports are fixed on the top surface of the bottom plate, a plurality of bearing seats are fixed on the top surfaces of the two supports, and the bearing seats are fixed on the bottom plate. A roller body is arranged between the two opposite bearing seats, roller heads are coaxially fixed to the two ends of the roller body correspondingly, bearings are arranged between the roller heads and the bearing seats, first mounting grooves are formed in the two roller heads correspondingly, driving blocks are slidably connected to the inner sides of the first mounting grooves, three first inclined faces are arranged on the outer sides of the driving blocks, and the first inclined faces are arranged on the outer sides of the driving blocks. And the inner side of the first mounting groove is further slidably connected with three ejector blocks, and the sides, close to the driving block, of the ejector blocks are provided with second slopes. The bearing dismounting device solves the problems that the bearing dismounting process is tedious, a bearing puller is used for dismounting after a bearing seat is dismounted, and time and labor are wasted.

Description

TECHNICAL FIELD

[0001] The utility model belongs to packaging bag processing technical field, more specifically, it is especially related to a kind of stretching guide device for plastic packaging bag processing. BACKGROUND

[0002] Stretching guide device can accurately control the direction and position of plastic film in the stretching process, ensure that film is uniformly stretched according to predetermined direction and proportion, which helps to ensure the dimensional accuracy and shape stability of packaging bag, the stretching guide device for plastic packaging bag processing of prior art, after long time use, roller can be worn, leading to that packaging film is not smooth on roller, and further causing deviation, bearing needs to be replaced regularly, and bearing dismounting process is tedious, after bearing seat is disassembled, bearing puller is used to dismount, time-consuming and laborious, therefore, a kind of stretching guide device for plastic packaging bag processing is provided. SUMMARY

[0003] In view of the deficiencies of the prior art, the stretching guide device for plastic packaging bag processing provided by the utility model can eject bearing by inserting hex wrench into internal hexagonal groove on rotating rod when dismounting bearing, reverse rotating hex wrench when installing bearing, so that top ring retreats to the position not contacting bearing, then, new bearing is placed, reverse rotating hex wrench again, so that top block is pushed out from first installation slot and abuts against bearing, which can quickly install and dismount bearing, to solve the problem of tedious bearing dismounting process, disassembling bearing seat and then using bearing puller to dismount, time-consuming and laborious in the above background art.

[0004] To achieve the above object, the utility model is realized by the following technical scheme: a kind of stretching guide device for plastic packaging bag processing, including bottom plate, the top surface of bottom plate is fixed with two supports, the top surface of two supports is fixed with a plurality of bearing seats, roller body is equipped between opposite two bearing seats, the both ends of roller body are coaxially fixed with roll head, bearing is equipped between roll head and bearing seat, the inside of two roll heads is equipped with first installation slot, the inside of first installation slot is slidably connected with driving block, the outside of driving block is equipped with three first inclined surfaces, the inside of first installation slot is also slidably connected with three top blocks, the side close to driving block of top block is equipped with second inclined surface, the inside of two roll heads is also equipped with second installation slot, the inside of second installation slot is slidably connected with connecting block, the outside of two roll heads is slidably connected with top ring, the inside of roll head is also rotatably connected with rotating rod, the end away from roller body of rotating rod is equipped with internal hexagonal groove, the outside of rotating rod is equipped with first screw thread, the outside of first screw thread is screw-connected with the inside of driving block, the outside of rotating rod is also equipped with second screw thread, the outside of second screw thread is screw-connected with the inside of connecting block.

[0005] As the preferred technical scheme of the utility model, the first installation groove is Y-shaped structure, the driving block is Y-shaped structure.

[0006] As the preferred technical scheme of the utility model, the slope of the second inclined surface is same with the slope of the first inclined surface.

[0007] As the preferred technical scheme of the utility model, the second installation groove is Chinese character-shaped structure, the connecting block is Chinese character-shaped structure.

[0008] As the preferred technical scheme of the utility model, the interval of the second screw thread is greater than the interval of the first screw thread.

[0009] As the preferred technical scheme of the utility model, the outer side of the second inclined surface is slidably connected with the outer side of the first inclined surface.

[0010] As the preferred technical scheme of the utility model, the both ends of the connecting block are fixedly connected with the inner side of the top ring.

[0011] The utility model provides a kind of stretch guiding device for plastic packaging bag processing, with following beneficial effects:

[0012] The stretch guiding device for plastic packaging bag processing, when disassembling bearing, by hexagon wrench insertion inner hexagonal recess on rotating rod, bearing can be ejected, when installing bearing, reverse rotating hexagon wrench, so that top ring retreats to the position not contacting bearing, then, put in new bearing, reverse rotating hexagon wrench again, so that the top block is pushed out from the first installation groove and abuts with bearing, can quickly install and disassemble bearing, save manpower, improve work efficiency, solve the problem that bearing disassembly process is complicated, after bearing seat is disassembled, bearing puller is used to disassemble, time-consuming and laborious.

[0013] 2, the stretch guiding device for plastic packaging bag processing, structure design is reasonable and compact, and use effect is good. ACCURACY OF DRAWINGS

[0014] Figure 1 It is the whole structure schematic view of the stretch guiding device for plastic packaging bag processing of the utility model.

[0015] Figure 2 It is the section and split structure schematic view of the stretch guiding device for plastic packaging bag processing of the utility model.

[0016] Figure 3 It is the stretch guiding device for plastic packaging bag processing of the utility model Figure 2 The enlarged schematic view of A in it.

[0017] Figure 4The utility model discloses a stretching guide device for plastic packaging bag processing Figure 2 The enlarged schematic view of B in the stretching guide device for plastic packaging bag processing

[0018] In the figure: 1, bottom plate; 2, support; 3, bearing seat; 4, roller body; 5, roller head; 6, bearing; 7, first installation slot; 8, driving block; 9, first inclined plane; 10, top block; 11, second inclined plane; 12, second installation slot; 13, connecting block; 14, top ring; 15, rotating rod; 16, internal hexagonal recess; 17, first thread; 18, second thread. DETAILED DESCRIPTION

[0019] The embodiments of the utility model will be further described in detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.

[0020] In the description of the utility model, unless otherwise specified, the meaning of "a plurality of " is two or more than two;The orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, a particular orientation and operation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0021] In the description of the utility model, it should be pointed out that, unless otherwise specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected;It can be mechanically connected, or it can be electrically connected;It can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0022] Please refer to Figures 1 to 4The utility model provides a kind of technical scheme: a stretching guide device for plastic packaging bag processing, including bottom plate 1, the top surface of bottom plate 1 is fixed with two supports 2, the top surface of two supports 2 is fixed with multiple bearing seats 3, opposite two bearing seats 3 are equipped with roll body 4, the both ends of roll body 4 are coaxially fixed with roll head 5, bearing 6 is equipped between roll head 5 and bearing seat 3, the inside of two roll heads 5 is equipped with first installation slot 7, the inside of first installation slot 7 is slidably connected with driving block 8, the outside of driving block 8 is equipped with three first inclines 9, the inside of first installation slot 7 is also slidably connected with three top blocks 10, the side close to driving block 8 of top block 10 is equipped with second incline 11, the inside of two roll heads 5 is also equipped with second installation slot 12, the inside of second installation slot 12 is slidably connected with connecting block 13, the outside of two roll heads 5 is slidably connected with top ring 14, the inside of roll head 5 is also rotatably connected with rotating rod 15, the end away from roll body 4 of rotating rod 15 is equipped with internal hex recess 16, the outside of rotating rod 15 is equipped with first thread 17, the outside of first thread 17 is threadedly connected with the inside of driving block 8, the outside of rotating rod 15 is also equipped with second thread 18, the outside of second thread 18 is threadedly connected with the inside of connecting block 13, first installation slot 7 is Y-shaped structure, driving block 8 is Y-shaped structure, the slope of second incline 11 is same with the slope of first incline 9, second installation slot 12 is middle character-shaped structure, connecting block 13 is middle character-shaped structure, the interval of second thread 18 is greater than the interval of first thread 17, the outside of second incline 11 is slidably connected with the outside of first incline 9, the both ends of connecting block 13 are fixedly connected with the inside of top ring 14;

[0023] When bearing 6 is disassembled, by inserting hex wrench into internal hex recess 16 on rotating rod 15, rotating rod 15 is driven to rotate, first thread 17 on rotating rod 15 drives driving block 8 to move along first installation slot 7, first incline 9 on first installation slot 7 slides with second incline 11 on top block 10, so that top block 10 is pulled to move inward, so that top block 10 is separated from bearing 6, bearing 6 is conveniently pushed out, after top block 10 is completely received in first installation slot 7, second thread 18 on rotating rod 15 drives connecting block 13 to move along second installation slot 12, connecting block 13 drives top ring 14 to contact bearing 6, so that bearing 6 is pushed out from bearing seat 3, then, hex wrench is reversely rotated, so that top ring 14 retreats to the position not contacting bearing 6, then, new bearing 6 is put in, hex wrench is reversely rotated again, so that top block 10 is pushed out from first installation slot 7 and abuts against bearing 6, through above process, bearing can be quickly installed and disassembled, manpower is saved, work efficiency is improved, the problem that bearing disassembly process is complicated, bearing is disassembled after bearing seat is disassembled, and then bearing puller is used to disassemble, time and effort are saved.

[0024] The specific use and role of the embodiment are as follows: when the bearing 6 is disassembled, the hexagonal wrench is inserted into the internal hexagonal groove 16 on the rotating rod 15, thereby driving the rotating rod 15 to rotate, the first thread 17 on the rotating rod 15 drives the driving block 8 to move along the first installation groove 7, the first inclined surface 9 on the first installation groove 7 slides with the second inclined surface 11 on the top block 10, thereby pulling the top block 10 to move inward, so that the top block 10 is separated from the bearing 6, the bearing 6 is conveniently pushed out, after the top block 10 is completely received in the first installation groove 7, the second thread 18 on the rotating rod 15 drives the connecting block 13 to move along the second installation groove 12, the connecting block 13 drives the top ring 14 to contact the bearing 6, thereby pushing the bearing 6 out of the bearing seat 3, then, the hexagonal wrench is reversely rotated, so that the top ring 14 retreats to a position not contacting the bearing 6, then, the new bearing 6 is put in, the hexagonal wrench is reversely rotated again, so that the top block 10 is pushed out of the first installation groove 7 and abuts against the bearing 6.

[0025] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art, according to the technical scheme and the utility model concept of the utility model, within the technical range disclosed by the utility model, carries out equivalent replacement or change, should be covered in the protection scope of the utility model.

Claims

1. A stretch guide device for processing plastic packaging bags, comprising a base plate (1), characterized in that: The top surface of the bottom plate (1) is fixed with two supports (2), the top surface of two supports (2) is fixed with a plurality of bearing seats (3), opposite two bearing seats (3) are equipped with roll body (4), both ends of roll body (4) are coaxially fixed with roll head (5), bearing (6) is equipped between roll head (5) and bearing seat (3), the inside of two roll head (5) is equipped with first installation slot (7), the inside of first installation slot (7) is slidably connected with driving block (8), the outside of driving block (8) is equipped with three first inclined surfaces (9), the inside of first installation slot (7) is also slidably connected with three top blocks (10), the side of top block (10) close to driving block (8) is equipped with second inclined surface (11), the inside of two roll head (5) is also equipped with second installation slot (12), the inside of second installation slot (12) is slidably connected with connecting block (13), the outside of two roll head (5) is slidably connected with top ring (14), the inside of roll head (5) is also rotatably connected with rotating rod (15), the end of rotating rod (15) away from roll body (4) is equipped with internal hexagonal groove (16), the outside of rotating rod (15) is equipped with first thread (17), the inside of driving block (8) is threadedly connected with the outside of first thread (17), the outside of rotating rod (15) is also equipped with second thread (18), the inside of connecting block (13) is threadedly connected with the outside of second thread (18).

2. The stretch guide device for processing plastic packaging bags according to claim 1, characterized in that: The first installation slot (7) is Y-shaped structure, the driving block (8) is Y-shaped structure.

3. The stretch guide device for processing plastic packaging bags according to claim 1, characterized in that: The slope of second inclined surface (11) is same with the slope of first inclined surface (9).

4. The stretch guide device for processing plastic packaging bags according to claim 1, characterized in that: The second installation slot (12) is Chinese character-shaped structure, the connecting block (13) is Chinese character-shaped structure.

5. The stretch guide device for processing plastic packaging bags according to claim 1, characterized in that: The interval of second thread (18) is greater than the interval of first thread (17).

6. The stretch guide device for processing plastic packaging bags according to claim 1, characterized in that: The outside of second inclined surface (11) is slidably connected with the outside of first inclined surface (9).

7. The stretch guide device for processing plastic packaging bags according to claim 1, characterized in that: Both ends of connecting block (13) are fixedly connected with the inside of top ring (14).

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