Feeding and unwinding mechanism of splitting machine

Abstract

The utility model provides a slitting machine feeding and unwinding mechanism, which relates to the technical field of unwinding mechanisms, and comprises a feeding frame, a first hollow shaft, a second hollow shaft and an unwinding roller, the first hollow shaft and the second hollow shaft are respectively and rotatably arranged on two sides in the feeding frame, circular plates are arranged in the first hollow shaft and the second hollow shaft, screw rods are rotatably arranged on the circular plates, and the unwinding roller is rotatably arranged on the screw rods. One end of the screw is in threaded connection with the sleeve, one end of the sleeve extends out of the sliding hole and is provided with a first fixed end plate, and second fixed end plates are arranged at the two ends of the unwinding roller; the circular plates, the screws and the sleeves are arranged in the first hollow shaft and the second hollow shaft, and the circular plates, the screws and the sleeves can form a movable adjusting mechanism, so that the sleeves in the first hollow shaft and the second hollow shaft can be close to each other; and therefore, the first fixed end plate mounted at one end of the sleeve can be assembled and fixed with the second fixed end plates at the two ends of the unwinding rollers with different lengths.

Description

Technical Field

[0001] The utility model relates to the technical field of unwinding mechanisms, in particular to a feeding and unwinding mechanism for a slitting machine. Background Art

[0002] PET film is a packaging film with relatively comprehensive performance, suitable for processing products such as printing and paper bags. During the production process, PET protective film requires a slitter for cutting. Existing slitter loading and unwinding devices make it difficult to remove and replace the winding roller during use. Furthermore, a fixed slitter loading and unwinding device generally only accommodates one winding roller length, resulting in limited adaptability. Furthermore, the device lacks a mechanism to limit the unwinding state of the PET film during unwinding. Therefore, the present invention proposes a slitter loading and unwinding mechanism to address these shortcomings of the prior art. Utility Model Content

[0003] In response to the above problems, the purpose of the present invention is to provide a feeding and unwinding mechanism for a slitting machine, by arranging the first hollow shaft and the second hollow shaft coaxially and arranging circular plates, screws and sleeves inside the first hollow shaft and the second hollow shaft, the circular plates, screws and sleeves can constitute a movable adjustment mechanism, so that the sleeves inside the first hollow shaft and the second hollow shaft can be close to each other, and then the first fixed end plate installed at one end of the sleeve can be assembled and fixed with the second fixed end plates at both ends of unwinding rollers of different lengths, so that the feeding and unwinding mechanism of the slitting machine of the present invention has improved flexibility in use, and can meet the needs of slitting, unwinding and loading PET films wound on unwinding rollers of different lengths.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] A slitting machine loading and unwinding mechanism comprises a loading frame, a first hollow shaft, a second hollow shaft and an unwinding roller, wherein a first hollow shaft and a second hollow shaft are respectively rotatably provided on both sides of the loading frame, the first hollow shaft and the second hollow shaft are coaxially arranged, the first hollow shaft is driven by a first motor, a circular plate is provided inside the first hollow shaft and the second hollow shaft, a screw is rotatably provided on the circular plate, the screw is driven by a second motor, one end of the first hollow shaft and the second hollow shaft is provided with a sliding hole, a sleeve is slidably provided in the sliding hole, one end of the screw is threadedly connected to the sleeve, one end of the sleeve extends out of the sliding hole and is provided with a first fixed end plate, two ends of the unwinding roller are provided with a second fixed end plate, the first fixed end plate and the second fixed end plate are both provided with fixing holes, and there are multiple fixing holes, the first fixed end plate and the second fixed end plate are connected by fixing bolts in the fixing holes, an upper limit mechanism is provided on the upper part of the loading frame, side limit mechanisms are provided on both sides of the upper limit mechanism, electromagnetic rails are symmetrically provided on the upper part of the loading frame, and the side limit mechanisms are slidably connected to the electromagnetic rails.

[0006] Further improvements are: the upper limit mechanism includes a lifting cylinder, a center bracket, a movable bracket and an upper limit rubber roller, a lifting cylinder is installed on the top of the loading rack, the output end of the lifting cylinder extends to the upper part of the loading rack and a center bracket is provided, movable brackets are slidingly provided on both sides of the center bracket, and upper limit rubber rollers are rotatably provided inside the center bracket and the movable bracket.

[0007] A further improvement is that an adjusting bolt is provided on the top of the central bracket, an adjusting hole is provided on the movable rod of the movable bracket, there are multiple adjusting holes, and the adjusting bolt is connected to the adjusting hole.

[0008] A further improvement is that the side limiting mechanism includes a slide, a first side limiting rubber roller and a second side limiting rubber roller, the slide is slidably connected to the electromagnetic track, and the first side limiting rubber roller and the second side limiting rubber roller are rotatably provided at the bottom of the slide.

[0009] A further improvement is that: a movable groove is provided at the top of the first hollow shaft and the second hollow shaft, a locking assembly is movably provided in the movable groove, and the lower end of the locking assembly is connected to the sleeve.

[0010] Further improvements are: the locking assembly includes a connecting block, a locking plate and a locking bolt, a connecting block is provided on one side of the top of the sleeve, the connecting block is slidably connected to the movable groove, a locking plate is provided on the top of the first hollow shaft and the second hollow shaft, the bottom of the locking plate is connected to the top of the connecting block, locking bolts are provided at the four corners of the locking plate, and locking holes are provided on the top of the first hollow shaft and the second hollow shaft on both sides of the movable groove, and there are multiple locking holes.

[0011] The beneficial effects of the utility model are as follows: the utility model arranges the first hollow shaft and the second hollow shaft coaxially and arranges a circular plate, a screw and a sleeve inside the first hollow shaft and the second hollow shaft, the circular plate, the screw and the sleeve can constitute a movable adjustment mechanism, so that the sleeves inside the first hollow shaft and the second hollow shaft can be close to each other, thereby making it possible for the first fixed end plate installed at one end of the sleeve to be assembled and fixed with the second fixed end plates at both ends of the unwinding rollers of different lengths, so that the feeding and unwinding mechanism of the slitting machine of the utility model is more flexible in use, and can meet the needs of slitting, unwinding and feeding of PET films wound on unwinding rollers of different lengths;

[0012] The utility model can limit the top of the unwound PET film from the top of the unwinding roller by setting an upper limit mechanism, and the side limit mechanism can limit the top of the unwound PET film from both ends of the unwinding roller, so that the PET film wound on the unwinding roller is not likely to deviate during the unwinding process, and the unwinding and loading can be carried out stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the main view of the utility model;

[0014] Figure 2 This is a schematic diagram of the main view of the internal structure of the first hollow shaft of the utility model;

[0015] Figure 3 This is a schematic diagram of the main structure of the upper limit mechanism of the utility model;

[0016] Figure 4 This is a schematic diagram of the front view of the side limit mechanism structure of the utility model;

[0017] Figure 5 This is a three-dimensional schematic diagram of the side limit mechanism structure of the utility model;

[0018] Figure 6 This is a three-dimensional schematic diagram of the structure of the side limit mechanism and the unwinding roller used in conjunction with each other in the utility model;

[0019] Figure 7 This is a schematic top view of the top structure of the first hollow shaft of the utility model;

[0020] Figure 8 This is a side view schematic diagram of the installation structure of the locking assembly of the utility model;

[0021] Figure 9 For this utility model Figure 1 A schematic diagram of the enlarged results at point A in the middle.

[0022] Among them: 1. loading rack; 2. first hollow shaft; 3. second hollow shaft; 4. unwinding roller; 5. first motor; 6. circular plate; 7. screw; 8. sliding hole; 9. sleeve; 10. second motor; 11. fixing hole; 12. fixing bolt; 13. upper limit mechanism; 1301. lifting cylinder; 1302. center bracket; 1303. movable bracket; 1304. upper limit rubber roller; 1305. adjusting bolt; 14. side limit mechanism; 1401. slide; 1402. first side limit rubber roller; 1403. second side limit rubber roller; 15. electromagnetic track; 16. movable slot; 17. locking assembly; 1701. connecting block; 1702. locking plate; 1703. locking bolt; 1704. locking hole; 18. first fixed end plate; 19. second fixed end plate. DETAILED DESCRIPTION

[0023] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments. The embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0024] according to Figure 1-9 As shown, this embodiment proposes a slitting machine feeding and unwinding mechanism, including a feeding frame 1, a first hollow shaft 2, a second hollow shaft 3 and an unwinding roller 4, the first hollow shaft 2 and the second hollow shaft 3 are respectively rotatably provided on both sides of the feeding frame 1, the first hollow shaft 2 and the second hollow shaft 3 are coaxially arranged, the first hollow shaft 2 is driven by a first motor 5, a circular plate 6 is provided inside the first hollow shaft 2 and the second hollow shaft 3, a screw 7 is rotatably provided on the circular plate 6, the screw 7 is driven by a second motor 10, a sliding hole 8 is provided at one end of the first hollow shaft 2 and the second hollow shaft 3, a sleeve 9 is slidably provided in the sliding hole 8, and one end of the screw 7 is connected to the sleeve 9 is threadedly connected, one end of the sleeve 9 extends out of the sliding hole 8 and is provided with a first fixed end plate 18, and the two ends of the unwinding roller 4 are provided with a second fixed end plate 19, and the first fixed end plate 18 and the second fixed end plate 19 are both provided with a fixing hole 11, and there are multiple fixing holes 11. The first fixed end plate 18 and the second fixed end plate 19 are connected by a fixing bolt 12 in the fixing hole 11, and an upper limit mechanism 13 is provided on the upper part of the loading rack 1, and side limit mechanisms 14 are provided on both sides of the upper limit mechanism 13. Electromagnetic rails 15 are symmetrically provided on the upper part of the loading rack 1, and the side limit mechanisms 14 are slidably connected to the electromagnetic rails 15.

[0025] When the feeding and unwinding mechanism of the slitting machine of the present invention is used, the unwinding roller 4 with PET film of different lengths wound thereon can be installed with the first hollow shaft 2 and the second hollow shaft 3. Specifically, the protruding length of one end of the sleeve 9 in the first hollow shaft 2 and the second hollow shaft 3 is adjusted according to the length of the unwinding roller 4. The second motor 10 is started to drive the screw 7 to rotate, and then the sleeve 9 slidingly connected to the slide hole 8 moves on the screw 7, and the first fixed end plate 18 installed on the sleeve 9 is synchronously moved to a position until the distance between the two first fixed end plates 18 meets the installation of the unwinding roller 4. When installing the unwinding roller 4, the unwinding roller 4 is moved from bottom to top so that the unwinding roller 4 can be installed. The shafts at both ends of the roller 4 are inserted between the first side limiting rubber roller 1402 and the second side limiting rubber roller 1403 of the side limiting mechanism 14 (before this, the position of the side limiting mechanism 14 on the electromagnetic track 15 is adjusted according to the length of the unwinding roller 4), and then the second fixed end plates 19 at both ends of the unwinding roller 4 are connected and fixed to the first fixed end plates 18 by fixing bolts 12, and then the upper limit mechanism 13 is driven close to the top of the unwinding roller 4; after the unwinding roller 4 is installed, the first hollow shaft 2 can be driven to rotate by starting the first motor 5. At this time, since the first hollow shaft 2, the unwinding roller 4 and the second hollow shaft 3 form a whole, the three rotate synchronously for unwinding and loading.

[0026] The upper limit mechanism 13 includes a lifting cylinder 1301, a central support 1302, a movable support 1303, and an upper limit rubber roller 1304. The lifting cylinder 1301 is mounted on the top of the loading rack 1. The output end of the lifting cylinder 1301 extends to the upper part of the loading rack 1 and is then equipped with a central support 1302. The movable supports 1303 are slidably mounted on both sides of the central support 1302. The upper limit rubber roller 1304 is rotatably mounted inside both the central support 1302 and the movable support 1303. By activating the lifting cylinder 1301, the central support 1302 and the movable support 1303 are synchronously raised and lowered, so that the upper limit rubber roller 1304 is attached to the top of the unwinding roller 4 for positioning. The upper limit rubber roller 1304 can be rolled to limit the position during the process of pulling out and unwinding the PET film. At the same time, the frame structure composed of the central bracket 1302 and the movable bracket 1303 of the utility model can also be adjusted in length, and adaptability can be adjusted according to the length of the unwinding roller 4. Specifically, by moving the movable bracket 1303 that is slidingly connected to the central bracket 1302, the distance between the movable bracket 1303 and the central bracket 1302 can be adjusted.

[0027] The top of the central support 1302 is provided with an adjustment bolt 1305. The movable rod of the movable support 1303 is provided with a plurality of adjustment holes, and the adjustment bolt 1305 is connected to each of the adjustment holes. After adjusting the distance between the movable support 1303 and the central support 1302, the adjusted position of the movable support 1303 can be fixed by using the adjustment bolt 1305.

[0028] The side limiting mechanism 14 includes a slide 1401, a first side limiting rubber roller 1402, and a second side limiting rubber roller 1403. The slide 1401 is slidably connected to the electromagnetic track 15. The first side limiting rubber roller 1402 and the second side limiting rubber roller 1403 are rotatably mounted at the bottom of the slide 1401. When the PET film is pulled out and unwound, it contacts the first side limiting rubber roller 1402, which limits the contacting sides of the PET film, maintaining the running direction of the PET film unchanged.

[0029] A movable groove 16 is provided at the top of the first hollow shaft 2 and the second hollow shaft 3. A locking assembly 17 is movably provided in the movable groove 16. The lower end of the locking assembly 17 is connected to the sleeve 9. The locking assembly 17 includes a connecting block 1701, a locking plate 1702 and a locking bolt 1703. A connecting block 1701 is provided on one side of the top of the sleeve 9. The connecting block 1701 is slidably connected to the movable groove 16. A locking plate 1702 is provided on the top of the first hollow shaft 2 and the second hollow shaft 3. The bottom of the locking plate 1702 is connected to the top of the connecting block 1701. Locking bolts 1703 are provided at the four corners of the locking plate 1702. Locking holes 1704 are provided on the top of the first hollow shaft 2 and the second hollow shaft 3 on both sides of the movable groove 16. There are multiple locking holes 1704. The utility model provides a locking assembly 17. After the sleeve 9 adjusts its position, the locking assembly 17 can be used to further fix the sleeve 9 to the first hollow shaft 2 and the second hollow shaft 3, so that the stability of the sleeve 9 is improved when the first hollow shaft 2 and the second hollow shaft 3 rotate. Specifically, when the sleeve 9 moves on the screw rod 7, the connecting block 1701 moves in the movable groove 16. When the sleeve 9 stops moving, the locking bolt 1703 on the locking plate 1702 can be connected to the locking hole 1704 at the corresponding position.

[0030] The utility model arranges the first hollow shaft 2 and the second hollow shaft 3 coaxially and arranges a circular plate 6, a screw 7 and a sleeve 9 inside the first hollow shaft 2 and the second hollow shaft 3. The circular plate 6, the screw 7 and the sleeve 9 can constitute a movable adjustment mechanism, so that the sleeves 9 inside the first hollow shaft 2 and the second hollow shaft 3 can be close to each other, so that the first fixed end plate 18 installed at one end of the sleeve 9 can be assembled and fixed with the second fixed end plates 19 at both ends of the unwinding roller 4 of different lengths, so that the flexibility of the slitting machine loading and unwinding mechanism of the utility model is improved, and the PET films wound on the unwinding roller 4 of different lengths can be slitting, unwinding and loading; the utility model can limit the top of the unwound PET film from the top of the unwinding roller 4 by setting an upper limit mechanism 13, and the side limit mechanism 14 set can limit from both ends of the unwinding roller 4, so that the PET film wound on the unwinding roller 4 is not easy to deviate during the unwinding process, and the unwinding and loading can be carried out stably.

[0031] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A slitting machine loading and unwinding mechanism, characterized by: The invention comprises a loading frame (1), a first hollow shaft (2), a second hollow shaft (3) and an unwinding roller (4); the first hollow shaft (2) and the second hollow shaft (3) are rotatably provided on both sides of the loading frame (1); the first hollow shaft (2) and the second hollow shaft (3) are coaxially arranged; the first hollow shaft (2) is driven by a first motor (5); a circular plate (6) is provided inside the first hollow shaft (2) and the second hollow shaft (3); a screw (7) is rotatably provided on the circular plate (6); the screw (7) is driven by a second motor (10); a sliding hole (8) is provided at one end of the first hollow shaft (2) and the second hollow shaft (3); a sleeve (9) is slidably provided in the sliding hole (8); one end of the screw (7) is threadedly connected to the sleeve (9); A sliding hole (8) extends from one end of the sleeve (9) and is provided with a first fixed end plate (18), and second fixed end plates (19) are provided at both ends of the unwinding roller (4), and the first fixed end plate (18) and the second fixed end plate (19) are both provided with fixing holes (11), and the fixing holes (11) are provided in plurality, and the first fixed end plate (18) and the second fixed end plate (19) are connected by fixing bolts (12) in the fixing holes (11), and an upper limit mechanism (13) is provided on the upper part of the loading rack (1), and side limit mechanisms (14) are provided on both sides of the upper limit mechanism (13), and electromagnetic rails (15) are symmetrically provided on the upper part of the loading rack (1), and the side limit mechanisms (14) are slidably connected to the electromagnetic rails (15).

2. The slitting machine feeding and unwinding mechanism according to claim 1, characterized in that: The upper limit mechanism (13) comprises a lifting cylinder (1301), a central support (1302), a movable support (1303) and an upper limit rubber roller (1304). The lifting cylinder (1301) is installed on the top of the loading rack (1). The output end of the lifting cylinder (1301) extends to the upper part of the loading rack (1) and is provided with a central support (1302). The movable supports (1303) are slidably provided on both sides of the central support (1302). The upper limit rubber roller (1304) is rotatably provided inside both the central support (1302) and the movable support (1303).

3. The feeding and unwinding mechanism of a slitting machine according to claim 2, characterized in that: An adjusting bolt (1305) is provided on the top of the central bracket (1302), and an adjusting hole is provided on the movable rod of the movable bracket (1303). There are a plurality of adjusting holes, and the adjusting bolt (1305) is connected to the adjusting holes.

4. The slitting machine feeding and unwinding mechanism according to claim 1, characterized in that: The side limiting mechanism (14) comprises a slide (1401), a first side limiting rubber roller (1402) and a second side limiting rubber roller (1403); the slide (1401) is slidably connected to the electromagnetic track (15); the first side limiting rubber roller (1402) and the second side limiting rubber roller (1403) are rotatably provided at the bottom of the slide (1401).

5. The feeding and unwinding mechanism of a slitting machine according to claim 1, characterized in that: A movable groove (16) is provided at the top of the first hollow shaft (2) and the second hollow shaft (3), a locking assembly (17) is movably provided in the movable groove (16), and the lower end of the locking assembly (17) is connected to the sleeve (9).

6. The feeding and unwinding mechanism of a slitting machine according to claim 5, characterized in that: The locking assembly (17) includes a connecting block (1701), a locking plate (1702) and a locking bolt (1703). A connecting block (1701) is provided on one side of the top of the sleeve (9). The connecting block (1701) is slidably connected to the movable groove (16). The tops of the first hollow shaft (2) and the second hollow shaft (3) are provided with locking plates (1702). The bottom of the locking plate (1702) is connected to the top of the connecting block (1701). Locking bolts (1703) are provided at the four corners of the locking plate (1702). The tops of the first hollow shaft (2) and the second hollow shaft (3) on both sides of the movable groove (16) are provided with locking holes (1704). There are multiple locking holes (1704).

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