Film feeding tension control device of packaging machine

Abstract

The utility model discloses a film feeding tension control device of a packaging machine, and relates to the technical field of packaging machines, in particular to the film feeding tension control device of the packaging machine, which comprises a bottom plate and a rotating roller, a supporting plate is arranged at the top of the bottom plate, a round rod is rotatably connected in the supporting plate through a bearing, and a round block is arranged at one end of the round rod. And inclined teeth are mounted on the outer surface of the circular block. According to the film feeding tension control device of the packaging machine, through the arrangement of a round rod, a round block, inclined teeth, an electric hydraulic push rod, a transverse plate, an adjusting box, a reset spring, a matching block, a trapezoidal clamping block, a positioning sliding block, a pull rod and a pull plate, the film feeding tension control device of the packaging machine has the effects that a film is conveniently tightened in the film covering process, and the film is conveniently tensioned through tension; and through the arrangement of an electric hydraulic push rod, the distance between a trapezoidal clamping block and inclined teeth is conveniently adjusted, then the stress of the rotating roller during rotation is changed, the tension during film feeding is conveniently adjusted, and the purpose of improving the practicability is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging machines, in particular to a film feeding tension control device for packaging machines. Background Art

[0002] Packaging machines are machines that pack products to protect and beautify them. Packaging machines are mainly divided into two aspects: 1. Assembly line overall production packaging, 2. Product peripheral packaging equipment. There are many types of packaging machines, and there are many classification methods. From different perspectives, there are many types of packaging machines. According to the type of machinery, they are divided into: liquid packaging machines, powder packaging machines, granule packaging machines, skin packaging machines, sauce packaging machines, electronic combination scale packaging machines, pillow packaging machines; according to the packaging function, there are inner packaging and outer packaging machines; according to the packaging industry, there are packaging machines for food, daily chemical products, textiles, etc.; according to the packaging station, there are single-station and multi-station packaging machines; according to the degree of automation, there are semi-automatic and fully automatic packaging machines, etc.

[0003] In the prior art, the film feeding tension control device for packaging machines is prone to continuous rotation of the roller due to inertia during the film coating process, which makes it inconvenient to tighten the film during the coating process and has poor practicality. In addition, the prior art film feeding tension control device for packaging machines is not convenient for replacing the roller after the film on the roller is used up. A film feeding tension control device for packaging machines is now invented to solve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a film feeding tension control device for a packaging machine, which solves the problems raised in the above-mentioned background technology.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: a packaging machine film feeding tension control device includes a bottom plate and a rotating roller, a support plate is installed on the top of the bottom plate, a round rod is rotatably connected to the inside of the support plate through a bearing, a round block is installed at one end of the round rod, and an inclined tooth is installed on the outer surface of the round block, a placement groove is opened on one side of the support plate, an electric hydraulic push rod is installed inside the placement groove, a cross plate is installed on the movable end of the electric hydraulic push rod, an adjustment box is installed on one side of the cross plate, a reset spring is installed on the inner bottom wall of the adjustment box, and one end of the reset spring is installed A matching block is installed, a trapezoidal clamping block is installed on the top of the matching block, positioning sliders are installed on the front and back of the matching block, a pull rod is installed on the bottom of the matching block, a pull plate is installed on the bottom of the pull rod, a cavity disk is installed on the end of the round rod away from the round block, a limiting spring is installed inside the cavity disk, an adjustment plate is installed on one end of the limiting spring, a limiting block and a guide push rod are respectively installed on the side of the adjustment plate away from the limiting spring, a push plate is installed on the end of the guide push rod away from the adjustment plate, T-shaped sliders are installed on the top and bottom of the adjustment plate, and a positioning block is installed on one side of the roller.

[0006] Optionally, the inclined surface of the trapezoidal block abuts against the inclined surface of the inclined teeth, there are a plurality of inclined teeth, and the plurality of inclined teeth are arranged in a circular array with the center of the circular block as the center.

[0007] Optionally, the inner front wall and the inner rear wall of the adjustment box are provided with positioning grooves with the front-to-rear direction as the depth direction and the up-down direction as the length direction. The end of the positioning slider is located inside the positioning groove, and the positioning slider can slide along the length direction of the positioning groove.

[0008] Optionally, the round rod, the round block and the hollow disk all have the same center, and the round block and the hollow disk are respectively located on two side surfaces of the support plate.

[0009] Optionally, a positioning groove with the left-right direction as the depth direction is formed on a side of the cavity disc away from the round rod, and an end of the positioning block away from the roller is inserted into the positioning groove.

[0010] Optionally, a T-shaped groove is opened inside the cavity disc with the up-and-down direction as the depth direction and the left-and-right direction as the length direction. The end of the T-shaped slider is located inside the T-shaped groove, and the T-shaped slider can slide along the length direction of the T-shaped groove.

[0011] Optionally, a limiting groove with the front-to-rear direction as the depth direction is opened inside the positioning block, and one end of the limiting block away from the adjustment plate is inserted into the limiting groove.

[0012] Optionally, the rotating roller and the cavity disc have the same center, the position of the adjustment box is lower than the position of the round block, and the electric hydraulic push rod is electrically connected to the external power supply through a wire.

[0013] The utility model provides a film feeding tension control device for a packaging machine, which has the following beneficial effects:

[0014] 1. The film feeding tension control device of the packaging machine has the effect of conveniently tightening the film and conveniently tensioning the film during the laminating process through the arrangement of round rods, round blocks, inclined teeth, electric hydraulic push rods, cross plates, adjustment boxes, reset springs, matching blocks, trapezoidal blocks, positioning slide blocks, pull rods and pull plates. The arrangement of the electric hydraulic push rod facilitates the spacing between the trapezoidal blocks and the inclined teeth, thereby changing the force applied when the rollers rotate, facilitating the adjustment of the tension during film feeding, and achieving the purpose of improving practicality.

[0015] 2. The film feeding tension control device of the packaging machine has the effect of facilitating the disassembly and replacement of the roller through the arrangement of the cavity disc, the limit spring, the adjustment plate, the limit block, the guide push rod, the push plate, the T-shaped slide block and the positioning block. The positioning block plays a role in positioning and installation. The cooperation of the limit spring and the limit block facilitates the position of the positioning block, facilitates the rapid installation of the roller, and vice versa facilitates the rapid disassembly of the roller, thereby achieving the purpose of improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the left side section of the utility model;

[0018] Figure 3 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0019] Figure 4 It is a schematic diagram of the structure of the utility model in top view;

[0020] Figure 5 It is a schematic structural diagram of the utility model viewed from the right side;

[0021] Figure 6 For this utility model Figure 5 The enlarged structural diagram at B in the middle;

[0022] Figure 7 It is a structural schematic diagram of the utility model in front view section.

[0023] In the figure: 1. bottom plate; 2. roller; 3. support plate; 4. round rod; 5. round block; 6. inclined teeth; 7. electric hydraulic push rod; 8. cross plate; 9. adjustment box; 10. reset spring; 11. matching block; 12. trapezoidal block; 13. positioning slide block; 14. pull rod; 15. pull plate; 16. cavity disc; 17. limit spring; 18. adjustment plate; 19. limit block; 20. guide push rod; 21. push plate; 22. T-shaped slide block; 23. positioning block. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Example

[0025] See also Figures 1 to 7The utility model provides a technical solution: a film feeding tension control device for a packaging machine, comprising a bottom plate 1 and a roller 2, the roller 2 and the cavity disc 16 are at the same center, the position of the adjustment box 9 is lower than the position of the round block 5, the electric hydraulic push rod 7 is electrically connected to the external power supply through a wire, a support plate 3 is installed on the top of the bottom plate 1, and a round rod 4 is rotatably connected to the inside of the support plate 3 through a bearing, the round rod 4, the round block 5 and the cavity disc 16 are all at the same center, and the round block 5 and the cavity disc 16 are respectively located on the two side surfaces of the support plate 3, a round block 5 is installed at one end of the round rod 4, and an inclined tooth 6 is installed on the outer surface of the round block 5, a placement groove is opened on one side of the support plate 3, an electric hydraulic push rod 7 is installed inside the placement groove, a horizontal plate 8 is installed on the movable end of the electric hydraulic push rod 7, and a side surface of the horizontal plate 8 is installed There is an adjustment box 9, the inner front wall and the inner rear wall of the adjustment box 9 are both provided with positioning slide grooves with the front-to-back direction as the depth direction and the up-down direction as the length direction. The end of the positioning slide block 13 is located inside the positioning slide groove, and the positioning slide block 13 can slide along the length direction of the positioning slide groove. A return spring 10 is installed on the inner bottom wall of the adjustment box 9, and a matching block 11 is installed at one end of the return spring 10. A trapezoidal block 12 is installed on the top of the matching block 11. The inclined surface of the trapezoidal block 12 abuts against the inclined surface of the inclined teeth 6. There are several inclined teeth 6, and several inclined teeth 6 are arranged in a circular array with the center of the circle of the circular block 5 as the center. Positioning slide blocks 13 are installed in front and back of the matching block 11, and a pull rod 14 is installed at the bottom of the matching block 11, and a pull plate 15 is installed at the bottom of the pull rod 14.

[0026] When in use, when laminating, the film on the roller 2 is pulled, so that the roller 2 drives the cavity disc 16, the round rod 4 and the round block 5 to rotate, so that the plurality of inclined teeth 6 make a circular motion with the center of the round block 5 as the center, and the inclined surface of the inclined teeth 6 abuts against the inclined surface of the trapezoidal block 12. When the inclined teeth 6 abutting against the trapezoidal block 12 rotate, the trapezoidal block 12 is subjected to a downward component force, so that the return spring 10 is forced to contract, and the end of the positioning slide block 13 is located inside the positioning slide groove, which is convenient for the trapezoidal block 12 to drive the matching block 11 and the positioning slide block 13 When the inclined tooth 6 is moved downward, after the trapezoidal block 12 is separated from the inclined tooth 6, the force applied to the trapezoidal block 12 disappears, and the trapezoidal block 12 is reset and abutted against the inclined surface of the next inclined tooth 6 through the elastic tension of the reset spring 10, playing the role of tensioning the film. By extending or retracting the movable end of the electric hydraulic push rod 7, the cross plate 8 drives the adjustment box 9 to move, which facilitates the adjustment of the distance between the trapezoidal block 12 and the inclined tooth 6, thereby changing the force applied to the roller 2 when it rotates, making it convenient to adjust the tension during film feeding and improving practicality. Example

[0027] See also Figures 1 to 6The utility model provides a technical solution: a packaging machine film feeding tension control device, a round rod 4 is installed with a cavity disc 16 at one end away from the round block 5, a side of the cavity disc 16 away from the round rod 4 is provided with a positioning groove with the left and right direction as the depth direction, the end of the positioning block 23 away from the roller 2 is inserted into the inside of the positioning groove, the inside of the cavity disc 16 is provided with a T-shaped slide groove with the up and down direction as the depth direction and the left and right direction as the length direction, the end of the T-shaped slider 22 is located inside the T-shaped slide groove, the T-shaped slider 22 can slide along the length direction of the T-shaped slide groove, and the cavity round A limit spring 17 is installed inside the disk 16, and an adjustment plate 18 is installed at one end of the limit spring 17. A limit block 19 and a guide push rod 20 are respectively installed on the side of the adjustment plate 18 away from the limit spring 17, and a push plate 21 is installed on the end of the guide push rod 20 away from the adjustment plate 18. T-shaped sliders 22 are installed on the top and bottom of the adjustment plate 18. A positioning block 23 is installed on one side of the roller 2. A limit groove with the front and rear direction as the depth direction is opened inside the positioning block 23, and the end of the limit block 19 away from the adjustment plate 18 is inserted into the inside of the limit groove.

[0028] The push plate 21 is released, and the elastic tension of the limiting spring 17 causes the adjusting plate 18 to drive the limiting block 19 to reset, so that the end of the limiting block 19 is inserted into the inner part of the limiting groove, which is convenient for limiting the position of the positioning block 23, facilitating the installation of the new roller 2.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A film feeding tension control device for a packaging machine, comprising a bottom plate and a rotating roller, characterized in that: The top of the bottom plate is provided with a supporting plate, and a round rod is rotatably connected to the inside of the supporting plate through a bearing. A round block is installed at one end of the round rod, and an inclined tooth is installed on the outer surface of the round block. A placement groove is opened on one side of the supporting plate, and an electric hydraulic push rod is installed inside the placement groove, and a cross plate is installed at the movable end of the electric hydraulic push rod, and an adjusting box is installed on one side of the cross plate, and a return spring is installed on the inner bottom wall of the adjusting box, and a matching block is installed at one end of the return spring. A trapezoidal card block is installed on the top of the matching block, and a positioning slider is installed in the front and rear of the matching block. A pull rod is installed at the bottom of the matching block, and a pull plate is installed at the bottom of the pull rod. A cavity disk is installed at the end of the round rod away from the round block, a limiting spring is installed inside the cavity disk, and an adjusting plate is installed at one end of the limiting spring. A limiting block and a guide push rod are respectively installed on the side of the adjusting plate away from the limiting spring, and a push plate is installed on the end of the guide push rod away from the adjusting plate, a T-shaped slider is installed on the top and bottom of the adjusting plate, and a positioning block is installed on one side of the rotating roller.

2. The film feeding tension control device for a packaging machine according to claim 1, characterized in that: The inclined surface of the trapezoidal block abuts against the inclined surface of the inclined teeth. There are a plurality of inclined teeth, which are arranged in a circular array with the center of the circular block as the center.

3. The film feeding tension control device for a packaging machine according to claim 1, characterized in that: The inner front wall and the inner rear wall of the regulating box are both provided with positioning slide grooves with the front-to-back direction as the depth direction and the up-down direction as the length direction. The end of the positioning slide block is located inside the positioning slide groove, and the positioning slide block can slide along the length direction of the positioning slide groove.

4. The film feeding tension control device for a packaging machine according to claim 1, characterized in that: The round rod, the round block and the cavity disk all have the same center, and the round block and the cavity disk are respectively located on two side surfaces of the supporting plate.

5. The film feeding tension control device for a packaging machine according to claim 1, characterized in that: A positioning groove with the left-right direction as the depth direction is formed on a side of the cavity disc away from the round rod, and an end of the positioning block away from the rotating roller is inserted into the positioning groove.

6. The film feeding tension control device for a packaging machine according to claim 1, characterized in that: A T-shaped slide groove is provided inside the cavity disc with the up-down direction as the depth direction and the left-right direction as the length direction. The end of the T-shaped slider is located inside the T-shaped slide groove, and the T-shaped slider can slide along the length direction of the T-shaped slide groove.

7. The film feeding tension control device for a packaging machine according to claim 1, characterized in that: A limiting groove with the front-to-back direction as the depth direction is provided inside the positioning block, and one end of the limiting block away from the adjusting plate is inserted into the limiting groove.

8. The film feeding tension control device for a packaging machine according to claim 1, characterized in that: The rotating roller and the cavity disc have the same center, the position of the adjustment box is lower than the position of the round block, and the electric hydraulic push rod is electrically connected to the external power supply through a wire.

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