CN219823108U

CN219823108U - Plastic bag material roll preparation mechanism

Info

Publication number: CN219823108U
Application number: CN202320639011.9U
Authority: CN
Inventors: 周久寿; 唐云义
Original assignee: Chongqing Gaoxin Lianfa Plastic Packaging Co ltd
Current assignee: Chongqing Gaoxin Lianfa Plastic Packaging Co ltd
Priority date: 2023-03-28
Filing date: 2023-03-28
Publication date: 2023-10-13
Anticipated expiration: 2033-03-28

Abstract

The utility model discloses a plastic bag material roll preparation mechanism, which belongs to the field of plastic bag processing and comprises a roller for winding plastic bag strips, wherein a poking pin is fixed on a rotating shaft of the roller, a transmission part which is in intermittent transmission fit with the poking pin is also rotatably arranged below the rotating shaft, a first pull rope is wound on the transmission part, the first pull rope stretches out upwards after bypassing a reversing pulley and is connected with a cutter which is vertically and slidingly arranged above the strips, the rotating shaft rotates for one circle, the poking pin drives the transmission part to rotate for an angle, and when the rotating circle number of the rotating shaft reaches a set value, the cutter is pulled to move downwards so as to cut off the strips. The utility model is purely mechanical operation, is popular and easy to understand, and is easy to use and maintain.

Description

Plastic bag material roll preparation mechanism

Technical Field

The utility model relates to the field of plastic bag processing, in particular to a plastic bag material roll preparation mechanism.

Background

In the processing of plastic bags, such as in the processing of some supermarket shopping bags or food bags, the processed plastic material strips are all cylindrical bags, and are long, namely the material strips, and when the plastic bags are required to be processed, the plastic material strips are cut into sections, and the sections are sealed. At present, when the material belts are split-packed and stored, the measurement of the length of the material belts is mainly realized by adopting a sensor or a pulse signal, and cutting and blanking are carried out when the proper length is reached. The method has high automation degree and better precision, but the sensor and pulse metering are simple to general operators, but the structure and principle of the sensor and pulse metering are relatively obscure, once the sensor and pulse metering have faults, the sensor and the pulse metering are difficult to visually see, the general operators are more difficult to directly maintain on site, and as known, the automation equipment for detecting and transmitting the signals has higher requirements on installation and use environments than the automation equipment for purely mechanical control, and therefore, the mechanical simple material roll preparation equipment is necessary.

Disclosure of Invention

The utility model aims to solve the problems of the prior art, and provides a plastic bag material roll preparation mechanism, which solves the problem that the automatic winding and material breaking of a material roll cannot be realized by adopting pure mechanical control.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a plastic bag material roll preparation mechanism, which comprises a roller for winding a plastic bag strip, wherein a poking pin is fixed on a rotating shaft of the roller, a transmission part which is in intermittent transmission fit with the poking pin is also rotatably arranged below the rotating shaft, a first pull rope is wound on the transmission part, the first pull rope stretches out upwards after bypassing a reversing pulley and is connected with a cutter which is vertically and slidingly arranged above the strip, the rotating shaft rotates for one circle, the poking pin drives the transmission part to rotate for an angle, and when the rotating circle number of the rotating shaft reaches a set value, the cutter is pulled to move downwards to cut off the strip.

Further, the transmission part comprises a rotary sleeve, a mandrel and convex teeth, the rotary sleeve is rotationally sleeved on the mandrel, the rotary sleeve comprises a first sleeve and a second sleeve which are integrally formed, the convex teeth are annularly arranged on the cylindrical surface of the first sleeve, the rotary shaft rotates for one circle, the poking pin only pushes one convex tooth to rotate for a certain angle, and the second sleeve is used for winding the first stay cord.

Further, the poking pin is arranged along the radial direction of the drum, the convex teeth are arranged along the radial direction of the first sleeve, and the axes of the rotating sleeve and the drum are parallel to each other.

Further, a first plate is fixed on the inner wall of the second sleeve, and a second plate is hinged to the end part of the first plate; a baffle is also fixed on the inner wall of the second sleeve, and the baffle is closely arranged on the first plate and the second plate;

the annular array on the mandrel is provided with a plurality of toothed plates, when the second sleeve rotates clockwise on the mandrel, the second plate contacts with the toothed plates and rotates clockwise relative to the first plate to pass over the toothed plates, and when the second sleeve rotates anticlockwise on the mandrel, the second plate contacts with the toothed plates and can not correspondingly rotate anticlockwise relative to the first plate to be blocked under the blocking of the baffle plate.

Further, the top end of the toothed plate is in a convex arc shape, so that the poking pin rotates one circle, and the second plate smoothly slides into the adjacent tooth gap beyond one toothed plate and is clamped in the tooth gap.

Further, the first stay cord is connected the center of a pull rod parallel with the cylinder, the both ends of pull rod are respectively connected through a section second stay cord the both sides of cutter, the back slidable mounting of cutter is on a guide rail of vertical setting, is equipped with a pair of riser of relative and standing below the guide rail, and the clearance between two risers supplies the cutter to vertically insert to cut off the material area.

Further, a blowing calandria is arranged above the starting point of the material belt wound into the roller, and a hot air curtain blown out of the calandria enables the cut material belt to be attached to the roller. The length of the hot air curtain is not less than the axial length of the roller.

Compared with the prior art, the utility model has the following beneficial effects: the utility model adopts the huge transmission difference between the rotation of the roller and the rotation of the transmission part to realize the gradual downward movement of the cutter, and is finally automatically cut off when the length winding quantity of the material belt reaches a set value, so as to realize the material cutting of the material roll, adopts pure mechanical control, has no calculation of a sensor and a pulse signal, and the like, has intuitive and easily understood structure and principle, is easy for a general operator to directly check and maintain, and does not need to have special requirements like some electric control on the use environment; in addition, a plurality of transmission parts can be arranged to realize the speed reduction transmission step by step, the automatic material cutting can be realized by adopting a shorter cutter stroke under the specification of a large material roll, the selectivity is high in structural space design, the manufacturing is easy, and the cost is controllable.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is an enlarged view at a transmission component;

FIG. 3 is a cross-sectional view of one mounting structure of a second one of the rotating sleeves with the mandrel;

FIG. 4 is an enlarged view of a partial structure of the second sleeve and mandrel;

figure 5 is a front view of a drive arrangement for the cutter;

fig. 6 is a left side view of the structure shown in fig. 5.

The reference numerals are explained as follows: the rotary drum comprises a drum 1, a rotating shaft 101, a poking pin 2, a transmission part 3, convex teeth 301, a rotary sleeve 302, a mandrel 303, a first plate 304, a second plate 305, a baffle 306, a toothed plate 307, a first pull rope 4, a reversing pulley 5, a cutter 6, a second pull rope 7, a guide rail 8, a pull rod 9, a vertical plate 10, a calandria 11 and a material belt 12.

Detailed Description

In order to make the technical means, creation characteristics, achievement purposes and functions of the present utility model more clear and easy to understand, the technical scheme of the present utility model will be described in detail below. It will be appreciated by those skilled in the art that the following examples illustrate only some, but not all, of the specific embodiments of the utility model and that the scope of the utility model is not limited thereto.

Referring to fig. 1-2, this embodiment discloses a plastic bag material roll preparation mechanism, structurally mainly including a drum 1 for winding plastic bag material, a rotating shaft 101 of the drum 1 is fixed with a poking pin 2, the rotating shaft 101 can be integrally formed with the drum 1, a transmission component 3 intermittently driving and matching with the poking pin 2 is rotatably installed below the rotating shaft 101, a first pull rope 4 is wound on the transmission component 3, the first pull rope 4 winds around a reversing pulley 5 and then extends upwards to be connected with a cutter 6 vertically sliding above a material belt 12, the rotating shaft 101 rotates for one circle, the poking pin 2 drives the transmission component 3 to rotate for an angle A, when the rotation number of the rotating shaft 101 reaches a set value, the cutter 6 is pulled to move downwards to cut off the material belt 12, and therefore automatic cutting is achieved after the material roll with the set specification is processed.

Specifically, as shown in fig. 1, 2 and 3, the transmission part 3 of the present embodiment includes a rotary sleeve 302, a mandrel 303 and a tooth 301, the rotary sleeve 302 is rotatably sleeved on the mandrel 303, the rotary sleeve 302 includes a first sleeve and a second sleeve which are integrally formed, the diameter of the first sleeve is larger than that of the second sleeve, the tooth 301 is annularly arranged on the cylindrical surface of the first sleeve, the rotating shaft 101 rotates for one circle, the poking pin 2 only pushes one tooth 301 to rotate for a certain angle, and the second sleeve is used for winding the first stay cord 4, namely, is used for accommodating the stay cord. The poking pin 2 is arranged along the radial direction of the roller 1, the convex teeth 301 are arranged along the radial direction of the first sleeve, the axes of the rotary sleeve 302 and the roller 1 are parallel to each other, and pulling and storage of a pull rope can be stably realized, so that the cutter 6 can be gradually moved down to be in place.

In this embodiment, as shown in fig. 3-4, a first plate 304 is fixed on the inner wall of the second set, the end of the first plate 304 is hinged with a second plate 305, the back surface of the end of the second plate 305 can be processed into an arc surface, meanwhile, a baffle 306 is also fixed on the inner wall of the second set, the baffle 306 is arranged close to the first plate 304 and the second plate 305, the baffle 306 can be a curved structure, and in the inner corner area of the curve, the hinge posts of the first plate 304 and the second plate 305 are arranged to allow the two to oppositely and unidirectionally hinge. Further, a plurality of toothed plates 307 are annularly arranged on the spindle 303, and when the second sleeve is rotated clockwise on the spindle 303, the second plate 305 is rotated clockwise relative to the first plate 304 over the toothed plates 307 while being in contact with the toothed plates 307, that is, the rotary sleeve 302 is rotatable on the spindle 303, thereby accommodating the first rope 4. When the second sleeve rotates anticlockwise on the mandrel 303, the second plate 305 contacts with the toothed plate 307, and under the blocking of the baffle 306, the second plate cannot correspondingly rotate anticlockwise and be blocked relative to the first plate 304, so that the rotating sleeve 302 cannot rotate at the moment, and the rotating sleeve 302 cannot rotate freely due to accidental vibration or pulling when the poking pin 2 is not contacted with the convex teeth 301 on the rotating sleeve 302, thereby avoiding the false transmission of the first pull rope 4.

Preferably, during manufacture, the top end of the toothed plate 307 is in a convex arc shape, so that the poking pin 2 rotates one circle, and the second plate 305 smoothly slides into the adjacent tooth gap beyond one toothed plate 307 and is blocked in the tooth gap, thereby improving the braking action on the rotary sleeve 302.

For the operation of the cutter 6, as shown in fig. 5-6, the first pull rope 4 is connected with the center of a pull rod 9 parallel to the roller 1, two ends of the pull rod 9 are respectively connected with two sides of the cutter 6 through a section of second pull rope 7, the back of the cutter 6 is slidably mounted on a guide rail 8 which is vertically arranged, a pair of opposite vertical plates 10 are arranged below the guide rail 8, a gap between the two vertical plates 10 is used for the cutter 6 to vertically insert, when the first pull rope 4 pulls the pull rod 9 to move downwards to drive the cutter 6 to move downwards along the guide rail 8, the material belt 12 can be cut immediately once moving to the position where the cutter 6 moves downwards, if necessary, the cutter can be in communication connection with equipment of the output source of the material belt 12, and once cut, the cutter is automatically stopped, all are based on the structures of the utility model, and the rest structures matched are adaptively selected, the embodiment is not limited, and also not described in more detail.

In addition, one of design details is that a blowing calandria 11 is arranged above the starting point of the material belt 12 wound into the roller 1, a flat rectangular air outlet pipeline is arranged in the calandria 11, a hot air curtain blown out of the calandria 11 can blow the port of the material belt 12, the cut material belt 12 is stuck on the roller 1 without scattering and sticking, the length of the hot air curtain is not smaller than the optimal axial length of the roller 1, and after the cutting, the end of the material belt 12 is covered on the roller 1 in order as much as possible.

It should be further noted that, in the present disclosure, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Therefore, it will be appreciated by those skilled in the art that any modifications and equivalent substitutions of the present embodiment without departing from the technical spirit of the present utility model can be made by those skilled in the art based on the technical principles disclosed in the present utility model, and the present utility model is also intended to be within the scope of the present utility model.

Claims

1. The utility model provides a plastic bag material rolls up preparation mechanism, includes cylinder (1) that are used for twining plastic bag area material, a serial communication port, be fixed with on pivot (101) of cylinder (1) and dial round pin (2), still rotate below of pivot (101) install with dial round pin (2) intermittent type nature transmission complex drive part (3), it has first stay cord (4) to wind on drive part (3), first stay cord (4) upwards stretch out and connect cutter (6) of a vertical slip setting in material area (12) top after bypassing reversing pulley (5), pivot (101) rotate one round, dial round pin (2) and drive part (3) and rotate an angle, when pivot (101) rotation number of turns reaches the setting value, the pulling cutter (6) moves down and cuts off material area (12).

2. The plastic bag roll preparation mechanism of claim 1, wherein: the transmission part (3) comprises a rotary sleeve (302), a mandrel (303) and a convex tooth (301), wherein the rotary sleeve (302) is rotationally sleeved on the mandrel (303), the rotary sleeve (302) comprises a first sleeve and a second sleeve which are integrally formed, the convex tooth (301) is annularly arranged on the cylindrical surface of the first sleeve, the rotary shaft (101) rotates for one circle, the poking pin (2) only pushes one convex tooth (301) to rotate for a certain angle, and the second sleeve is used for winding the first stay cord (4).

3. The plastic bag roll preparation mechanism of claim 2, wherein: the poking pin (2) is arranged along the radial direction of the roller (1), the convex teeth (301) are arranged along the radial direction of the first sleeve, and the axes of the rotary sleeve (302) and the roller (1) are parallel to each other.

4. The plastic bag roll preparation mechanism of claim 2, wherein: a first plate (304) is fixed on the inner wall of the second sleeve, and a second plate (305) is hinged at the end part of the first plate (304); a baffle (306) is also fixed on the inner wall of the second sleeve, and the baffle (306) is closely arranged on the first plate (304) and the second plate (305);

the annular array on the mandrel (303) is provided with a plurality of toothed plates (307), when the second sleeve rotates clockwise on the mandrel (303), the second plate (305) rotates clockwise relative to the first plate (304) and passes over the toothed plates (307) when contacting with the toothed plates (307), and when the second sleeve rotates anticlockwise on the mandrel (303), the second plate (305) contacts with the toothed plates (307) and cannot correspondingly rotate anticlockwise relative to the first plate (304) under the blocking of the baffle plate (306) to be blocked.

5. The plastic bag roll preparation mechanism of claim 4, wherein: the top end of the toothed plate (307) is in a convex circular arc shape, so that the poking pin (2) rotates one circle, and the second plate (305) smoothly slides into the adjacent tooth gap beyond one toothed plate (307) and is clamped in the tooth gap.

6. The plastic bag roll preparation mechanism of claim 1, wherein: the utility model discloses a cutting machine, including cylinder (1), cutter (6), first stay cord (4), cutter (6), cutter (8), guide rail (8), cutter (6) are equipped with a pair of riser (10) that are opposite and stand up below the guide rail (8), and clearance between two riser (10) supplies cutter (6) vertical insertion to cut off material area (12), first stay cord (4) connect the center of a pull rod (9) that is parallel with cylinder (1), the both ends of pull rod (9) are respectively connected through one section second stay cord (7) the both sides of cutter (6).

7. The plastic bag roll preparation mechanism of claim 1, wherein: a blowing calandria (11) is arranged above the starting point of the material belt (12) wound into the roller (1), and a hot air curtain blown out of the calandria (11) enables the cut material belt (12) to be attached to the roller (1).

8. The plastic bag roll preparation mechanism of claim 7, wherein: the length of the hot air curtain is not smaller than the axial length of the roller (1).