Winding film splitting machine

Abstract

The utility model provides a stretch film splitting machine which comprises a machine body, a connecting rod is fixedly installed on the inner wall of the machine body, a plurality of cutter units are arranged on the connecting rod, and each cutter unit comprises a cutter head and a base. The tool bits can horizontally slide on the surface of the connecting rod through the base so that the distance between every two adjacent tool bits can be adjusted, the base can be detachably installed on the connecting seat through the limiting structure, limitation of the limiting structure on the base can be relieved through cooperation of the pressing rod and the elastic structure, and the tool bits can be conveniently and rapidly installed on the connecting seat. The base can drive the tool bits to be separated from the connecting rod, redundant tool bits can be directly separated from the connecting rod, more tool bits used for slitting the wrapping film can be arranged on the connecting rod, the slitting number of the wrapping film is increased, and the cutting efficiency of the wrapping film is improved. And meanwhile, the distance between every two adjacent tool bits is set through the graduated scale, so that the large error of the width of the winding film is prevented.

Description

Technical Field

[0001] This utility model relates to the field of stretch film slitting machine technology, specifically a stretch film slitting machine. Background Technology

[0002] Stretch film, also known as stretch film or heat shrink film, has the advantages of good stretch performance, good transparency, and uniform thickness. It is an environmentally friendly and recyclable material, odorless and non-toxic, and can be used to directly package food. It is mostly used for bulk packaging of loose goods to replace small containers. After processing, stretch film needs to be cut into different widths by a slitting machine to increase the application range of stretch film.

[0003] The cutting of stretch film slitting machines is achieved by cutters mounted on the machine body. The width of the stretch film is changed by adjusting the distance between the two cutters. In existing technologies, most cutters are mounted on a horizontally set connecting rod. The cutters can slide horizontally on the connecting rod to adjust the spacing. Excess cutters are pushed to one end of the connecting rod for storage. This method causes excess cutters to occupy more space on the connecting rod, thereby reducing the number of stretch films that can be cut. Furthermore, when the width of the stretch film changes, the distance between the two cutters needs to be measured before adjusting the position of the cutters on the connecting rod. This is not only inefficient but also causes errors in the width of the stretch film. Utility Model Content

[0004] The purpose of this invention is to provide a wrapping film slitting machine to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A stretch film slitting machine includes a machine body. A connecting rod is fixedly installed on the inner wall of the machine body. Multiple cutting units are provided on the connecting rod. Each cutting unit includes a cutter head and a base. The cutter head is fixedly installed on the inner wall of the base and is located on the center line of the base. A limiting structure is provided at the bottom of the base. The base is slidably connected to the surface of the connecting rod through the limiting structure. The limiting structure includes a notch, a guide rod, a fixing plate, a first spring, and a rubber roller. The notch is located on the inner wall of the base. Two guide rods are horizontally slidably connected to the surface of the base, and one end of each guide rod extends into the notch. The fixing plate is installed at one end of the guide rod. The rubber roller is concentrically rotatably connected to the surface of the fixing plate. The top of the rubber roller contacts the bottom of the connecting rod. The first spring is fixedly connected between the fixing plate and the notch and is sleeved on the surface of the guide rod. The other ends of the two guide rods are connected by a pull rod. A measuring element is provided between two adjacent cutting units.

[0007] Preferably, the base is provided with a locking structure, which includes a bolt and a screw hole. The screw hole is provided through the top of the base, the end of the bolt is threaded into the screw hole, and the bottom surface of the bolt abuts against the top surface of the connecting rod.

[0008] Preferably, a pressure rod is provided on the side of the base, and the pressure rod is vertically slidably connected to the top of the pull rod through an elastic structure. The bottom of the pressure rod is set as an inclined surface, and the inclined surface is in contact with the surface of the pull rod.

[0009] Preferably, the elastic structure includes a groove, a limiting rod, a connecting plate, and a second spring. The connecting plate is fixedly installed on the side of the base. The groove is disposed on the surface of the pressure rod. The limiting rod is vertically fixedly installed inside the groove and vertically passes through and slides on the surface of the connecting plate. The second spring is fixedly installed between the groove and the connecting plate and is sleeved on the surface of the limiting rod.

[0010] Preferably, the measuring element is a ruler with its two ends respectively located on the top of two bases, and the centerline of the base is located in the vertical plane where the end face of the ruler is located, and two adjacent rulers are in contact with each other.

[0011] Preferably, a positioning block is fixedly installed at the bottom of the scale, and a positioning hole is provided at the top of the base, with the positioning block engaging inside the positioning hole.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] In this invention, the cutter head can slide horizontally on the surface of the connecting rod via the base, thereby adjusting the distance between two adjacent cutter heads. The base can be detachably mounted on the connecting rod via a limiting structure. The restriction of the base by the limiting structure can be released by the cooperation of the pressure rod and the elastic structure, allowing the base to drive the cutter head to detach from the connecting rod. Excess cutter heads can be directly separated from the connecting rod, allowing more cutter heads for cutting the wrapping film to be arranged on the connecting rod, increasing the number of wrapping films that can be cut. At the same time, the distance between two adjacent cutter heads can be set by a scale, thereby preventing large errors in the width of the wrapping film. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the connection structure between the connecting rod and multiple cutting units of this utility model;

[0016] Figure 3 This is a side view of the base structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the bottom structure of the base of this utility model;

[0018] Figure 5 This is a schematic diagram of the connection structure between the scale and the base of this utility model;

[0019] Figure 6 This is a schematic diagram of the connection structure between the guide rod and the base of this utility model.

[0020] In the diagram: 1. Machine body; 2. Connecting rod; 3. Cutting head; 4. Base; 5. Notch; 6. Guide rod; 7. Fixing plate; 8. First spring; 9. Rubber roller; 10. Pull rod; 11. Bolt; 12. Screw hole; 13. Pressure rod; 14. Inclined surface; 15. Slide groove; 16. Limiting rod; 17. Connecting plate; 18. Second spring; 19. Scale; 20. Positioning block; 21. Positioning hole. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-6 This utility model provides a stretch film slitting machine, including a machine body 1. A connecting rod 2 is fixedly installed on the inner wall of the machine body 1. Multiple cutting units are provided on the connecting rod 2. Each cutting unit includes a cutter head 3 and a base 4. The cutter head 3 is fixedly installed on the inner wall of the base 4 and is located on the center line of the base 4. A limiting structure is provided at the bottom of the base 4. The base 4 is slidably connected to the surface of the connecting rod 2 through the limiting structure. A measuring element is provided between two adjacent cutting units.

[0023] Please see Figure 1 and 2 The base 4 can slide horizontally on the surface of the connecting rod 2. The distance between two adjacent cutter heads 3 can be changed by sliding the base 4. The limiting structure can restrict the base 4 to the connecting rod 2. After opening the limiting structure, the excess base 4 can be removed from the surface of the connecting rod 2, so that the remaining base 4 can be arranged arbitrarily on the surface of the connecting rod 2. Compared with the prior art, the usable area of ​​the connecting rod 2 is greatly increased. Furthermore, the distance between the two bases 4 can be directly limited by the setting of the measuring component, so as to realize the cutting of winding films of different widths.

[0024] The limiting structure includes a notch 5, guide rods 6, a fixing plate 7, a first spring 8, and a rubber roller 9. The notch 5 is located on the inner wall of the base 4. The two guide rods 6 are horizontally slidably connected to the surface of the base 4, and one end of each guide rod 6 extends into the notch 5. The fixing plate 7 is installed on one end of the guide rods 6. The rubber roller 9 is concentrically rotated and connected to the surface of the fixing plate 7. The top of the rubber roller 9 contacts the bottom of the connecting rod 2. The first spring 8 is fixedly connected between the fixing plate 7 and the notch 5, and the first spring 8 is sleeved on the surface of the guide rods 6. The other ends of the two guide rods 6 are connected by a pull rod 10.

[0025] Please see Figure 3 , 4 When the base 4 moves horizontally on the surface of the connecting rod 2, it can drive the rubber roller 9 to move synchronously. At this time, friction will be generated between the rubber roller 9 and the bottom of the connecting rod 2, thereby driving the rubber roller 9 to rotate. When the base 4 is removed, the pull rod 10 needs to be pulled first. The pull rod 10 will then move away from the base 4. When the pull rod 10 moves, it can drive the guide rod 6 to move synchronously, thereby causing the guide rod 6 to drive the rubber roller 9 to move synchronously through the fixing plate 7, so that the rubber roller 9 enters the notch 5. At this time, the rubber roller 9 moves from below the connecting rod 2 to the side of the connecting rod 2, so that the base 4 can be directly removed from the surface of the connecting rod 2.

[0026] It should be noted that during the pulling of the lever 10, the first spring 8 can be compressed inside the notch 5 by the fixing plate 7 to store energy. After the lever 10 is released, the fixing plate 7 can be driven to reset under the action of the spring force, thereby causing the fixing plate 7 to drive the rubber roller 9 to reset, so that the base 4 can be re-fixed on the connecting rod 2.

[0027] The base 4 is provided with a locking structure, which includes a bolt 11 and a screw hole 12. The screw hole 12 is provided through the top of the base 4, and the end of the bolt 11 is threaded into the screw hole 12. The bottom surface of the bolt 11 abuts against the top surface of the connecting rod 2.

[0028] Please see Figure 3 and 4 After the position of the cutter head 3 is adjusted, in order to ensure that the cutter head 3 does not shift when cutting the wrapping film, this embodiment is provided with a locking structure. By rotating the bolt 11, the bolt 11 can be driven to move vertically inside the screw hole 12. Rotating the bolt 11 causes it to move downward inside the screw hole 12 until the bottom surface of the bolt 11 abuts against the top of the connecting rod 2. At this time, there is a large static friction between the bolt 11 and the connecting rod 2. Since both the bolt 11 and the connecting rod 2 are made of rigid materials, they will not deform. Therefore, the bolt 11 can tightly fix the base 4 on the connecting rod 2, thereby increasing the static friction between the rubber roller 9 and the connecting rod 2, so as to achieve locking and fixing of the base 4.

[0029] A pressure rod 13 is provided on the side of the base 4. The pressure rod 13 is vertically slidably connected to the top of the pull rod 10 through an elastic structure. The bottom of the pressure rod 13 is set as an inclined surface 14, which contacts the surface of the pull rod 10. The elastic structure includes a groove 15, a limiting rod 16, a connecting plate 17, and a second spring 18. The connecting plate 17 is fixedly installed on the side of the base 4. The groove 15 is provided on the surface of the pressure rod 13. The limiting rod 16 is vertically fixedly installed inside the groove 15 and vertically passes through and is slidably connected to the surface of the connecting plate 17. The second spring 18 is fixedly installed between the groove 15 and the connecting plate 17 and is sleeved on the surface of the limiting rod 16.

[0030] Please see Figure 3 and 4 Since the inner wall of the machine body 1 is equipped with many rollers, it may be difficult to operate by pulling the pull rod 10 horizontally. Therefore, in this embodiment, a pressure rod 13 and an elastic structure are provided. By pressing the pressure rod 13 vertically, the pressure rod 13 can be moved down. At this time, the pressure rod 13 continuously pushes the pull rod 10 away from the base 4 through the inclined surface 14 at its bottom. At this time, the pressure rod 13 can drive the limiting rod 16 to slide vertically on the surface of the connecting rod 2 and compress the second spring 18. After releasing the pressure rod 13, the second spring 18 releases energy to drive the pressure rod 13 to reset, so that the base 4 can be removed from the surface of the connecting rod 2.

[0031] The measuring component is set as a scale 19, with both ends of the scale 19 respectively set on the top of the two bases 4, and the center line of the base 4 is in the vertical plane where the end face of the scale 19 is located. The two adjacent scales 19 are in contact with each other. A positioning block 20 is fixedly installed at the bottom of the scale 19, and a positioning hole 21 is provided at the top of the base 4. The positioning block 20 is engaged inside the positioning hole 21.

[0032] Please see Figure 5 The connection between the scale 19 and the two adjacent bases 4 can be achieved through the positioning hole 21 and the positioning block 20. The zero mark and the maximum mark on the scale 19 need to be located at the edges of the two ends of the scale 19 respectively. When two scales 19 are installed on the base 4, the zero mark of one scale 19 will coincide with the maximum mark of the other scale 19. The plane where the two coincide is the plane where the center line of the cutter head 3 is located. Therefore, the degree of the scale 19 is exactly equal to the width of the wrapping film after being cut by the two cutters head 3. By setting various scales 19 in combination, the cutting of wrapping film of different widths can be achieved, and the error can be greatly reduced.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A stretch film slitting machine, comprising a machine body (1), wherein a connecting rod (2) is fixedly installed on the inner wall of the machine body (1), and a plurality of cutting units are provided on the connecting rod (2), characterized in that: Each of the cutting units includes a cutting head (3) and a base (4). The cutting head (3) is fixedly installed on the inner wall of the base (4) and the cutting head (3) is located on the center line of the base (4). A limiting structure is provided at the bottom of the base (4). The base (4) is slidably connected to the surface of the connecting rod (2) through the limiting structure. The limiting structure includes a notch (5), a guide rod (6), a fixing plate (7), a first spring (8), and a rubber roller (9). The notch (5) is located on the inner wall of the base (4). The two guide rods (6) are horizontally slidably connected to the surface of the base (4), and one end of each guide rod (6) extends into the notch (5). The fixing plate (7) is installed on one end of the guide rod (6). The rubber roller (9) is concentrically rotated and connected to the surface of the fixing plate (7). The top of the rubber roller (9) contacts the bottom of the connecting rod (2). The first spring (8) is fixedly connected between the fixing plate (7) and the notch (5), and the first spring (8) is sleeved on the surface of the guide rod (6). The other ends of the two guide rods (6) are connected by a pull rod (10). A measuring element is provided between two adjacent cutting units.

2. The stretch film slitting machine according to claim 1, characterized in that: The base (4) is provided with a locking structure, which includes a bolt (11) and a screw hole (12). The screw hole (12) is provided through the top of the base (4). The end of the bolt (11) is threaded into the screw hole (12). The bottom surface of the bolt (11) abuts against the top surface of the connecting rod (2).

3. The stretch film slitting machine according to claim 2, characterized in that: The base (4) has a pressure rod (13) on its side. The pressure rod (13) is vertically slidably connected to the top of the pull rod (10) through an elastic structure. The bottom of the pressure rod (13) is set as an inclined surface (14), which is in contact with the surface of the pull rod (10).

4. A wrapping film slitting machine according to claim 3, characterized in that: The elastic structure includes a groove (15), a limiting rod (16), a connecting plate (17), and a second spring (18). The connecting plate (17) is fixedly installed on the side of the base (4). The groove (15) is disposed on the surface of the pressure rod (13). The limiting rod (16) is vertically fixedly installed inside the groove (15) and vertically penetrates and slides on the surface of the connecting plate (17). The second spring (18) is fixedly installed between the groove (15) and the connecting plate (17) and is sleeved on the surface of the limiting rod (16).

5. A wrapping film slitting machine according to claim 1, characterized in that: The measuring element is set as a ruler (19), with the two ends of the ruler (19) respectively set on the top of the two bases (4), and the center line of the base (4) is in the vertical plane where the end face of the ruler (19) is located, and the two adjacent rulers (19) are in contact with each other.

6. A wrapping film slitting machine according to claim 5, characterized in that: The bottom of the scale (19) is fixedly equipped with a positioning block (20), and the top of the base (4) is provided with a positioning hole (21). The positioning block (20) is engaged inside the positioning hole (21).

Images