An inner bag and outer bag assembly suitable for packaging machines with separated inner and outer packaging bags

Abstract

The present invention discloses an inner bag and bag-pushing assembly for a packaging machine that is adapted to separate inner and outer packaging bags, comprising a support frame, a group of connecting brackets being arranged on the support frame, a bag-pushing cylinder, a bag-pushing cylinder, and a rotating motor being arranged on the connecting bracket, the lower end of the piston rod of the bag-pushing cylinder being connected to a bag-pushing bracket, the lower end of the piston rod of the bag-pushing cylinder being connected to a bag-pushing device, and the end of the output shaft of the rotating motor being connected to a bag-twisting mechanism. The beneficial effects of the present invention are as follows: the bag-pushing arm first pushes the outer bag downward, and after the rotating motor and the bag-pushing cylinder complete the bending of the inner bag and push the outer bag in, the bag-pushing arm then lifts the outer bag upward and transports it to the next station; the inner bag is automatically pushed into the outer bag, and the outer bag is automatically pushed down and lifted. The work efficiency is improved and the labor intensity of the workers is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of automatic packaging of packaging bags, and in particular relates to an inner bag and an outer bag separation packaging machine adapted to the packaging bag. Background Art

[0002] In modern industry, automation in the production process has become a prominent theme. The automation level of all walks of life is getting higher and higher. Modern processing workshops are often equipped with automated equipment to improve production efficiency and complete difficult or dangerous tasks for workers. In the packaging process of bagged raw materials, especially feed and other materials packaged in inner and outer bags, most production lines cannot solve the problem of inner and outer separate packaging. Usually, the inner bag mouth must be manually tied first, then the inner bag mouth is pushed into the outer bag, the outer bag is manually lifted, and then sewn. In addition, the use of manual bagging, manual tying of the inner bag, and manual feeding into the folding and sewing equipment has high labor intensity for workers, high rate of work-related accidents, and low efficiency, which increases the production management costs of feed, food and other industries. Summary of the invention

[0003] The purpose of the present invention is to overcome the above technical defects and to propose an inner bag-to-bag assembly for a packaging machine that is adapted to separate the inner and outer parts of the packaging bag and realizes automatic separation and packaging of the inner and outer bags.

[0004] The technical solution adopted by the present invention to solve the technical problem is: an inner bag and bag-pushing assembly of a packaging machine suitable for separating the inner and outer packaging bags, comprising a support frame, a group of connecting brackets are arranged on the support frame, and a bag-pushing cylinder, a bag-pushing cylinder, and a rotating motor are arranged on the connecting bracket.

[0005] The lower end of the piston rod of the bag-supporting cylinder is connected to a bag-supporting bracket, a telescopic arm is provided on the bag-supporting bracket, the telescopic arm is connected to a bag-supporting arm, and a telescopic cylinder is provided between the telescopic arm and the bag-supporting bracket.

[0006] The lower end of the piston rod of the bag-pushing cylinder is connected to a bag-pushing device, which includes a base, a bag-pushing arm and a bag-pushing frame. One end of the bag-pushing arm is connected to the base, and the other end is connected to the bag-pushing frame.

[0007] The end of the output shaft of the rotary motor is connected to a bag twisting mechanism, which includes a base plate and two sets of bag twisting arms, and the bag twisting arms can slide back and forth on the base plate;

[0008] Preferably, the telescopic arm, the telescopic cylinder and the bag-supporting arm are two sets, which are symmetrically arranged on both sides of the bag-supporting bracket.

[0009] Preferably, the width of the bag-supporting frame is smaller than the distance between the two sets of bag-supporting arms.

[0010] Preferably, one end of the bag-pushing frame is connected to the end of the bag-pushing arm, and the other end extends toward the bag opening.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: the bag-supporting arm first pushes the outer bag downward, and after the rotating motor and the bag-pushing cylinder complete the bending of the inner bag and the outer bag is pushed in, the bag-supporting arm lifts the outer bag upward and transports it to the next workstation; the inner bag is automatically pushed into the outer bag, and the outer bag is automatically pushed down and lifted up, which improves work efficiency and reduces the labor intensity of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is an overall schematic diagram of the present invention;

[0013] Figure 2 This is a partial enlarged view of the bag-stifling device;

[0014] Figure 3 It is a schematic diagram of the telescopic arm and bag-supporting arm structure.

[0015] The markings in the figure are: 1. Support frame; 2. Connecting bracket; 3. Bag-supporting cylinder; 4. Bag-pushing cylinder; 5. Rotating motor; 6. Bag-supporting bracket; 7. Telescopic arm; 8. Bag-supporting arm; 9. Telescopic cylinder; 10. Bag-pushing device; 11. Base;

[0016] 12. Bag-holding arm; 13. Bag-holding frame; 14. Bag-twisting mechanism; 15. Base plate; 16. Bag-twisting arm. DETAILED DESCRIPTION

[0017] The present invention will be further described below in conjunction with the accompanying drawings:

[0018] Embodiment 1

[0019] like Figures 1 to 3 As shown, an inner bag and bag-pushing assembly of a packaging machine adapted to the inner and outer separation of packaging bags comprises a support frame 1, a group of connecting brackets 2 are arranged on the support frame 1, and a bag-pushing cylinder 3, a bag-pushing cylinder 4, and a rotating motor 5 are arranged on the connecting bracket 2.

[0020] The lower end of the piston rod of the bag-supporting cylinder 3 is connected to a bag-supporting bracket 6, and a telescopic arm 7 is provided on the bag-supporting bracket 6. The telescopic arm 7 is connected to a bag-supporting arm 8, and a telescopic cylinder 9 is provided between the telescopic arm 7 and the bag-supporting bracket 6;

[0021] The lower end of the piston rod of the bag-pushing cylinder 4 is connected to a bag-pushing device 10, and the bag-pushing device 10 includes a base 11, a bag-pushing arm 12 and a bag-pushing frame 13. One end of the bag-pushing arm 12 is connected to the base 11, and the other end is connected to the bag-pushing frame 13; one end of the bag-pushing frame 13 is connected to the end of the bag-pushing arm 12, and the other end extends toward the bag opening.

[0022] The end of the output shaft of the rotary motor 5 is connected to a bag twisting mechanism 14, which includes a base plate 15 and two sets of bag twisting arms 16, and the bag twisting arms 16 can slide back and forth on the base plate 15;

[0023] The telescopic arm 7 , the telescopic cylinder 9 , and the bag-supporting arm 8 are two sets, which are symmetrically arranged on both sides of the bag-supporting bracket 6 .

[0024] The width of the bag-supporting frame 13 is smaller than the distance between the two groups of bag-supporting arms 8 .

[0025] The working principle and working process of the present invention are as follows: the packaging bag whose inner bag opening is tightened with a tie wire in the previous process is transported to the bag-stitching station, and two sets of bag-stretching arms 8 are first extended between the inner bag opening and the outer bag opening of the packaging bag to stretch the outer bag opening outward; the bag-stretching cylinder 3 then extends downward, and pushes the outer bag downward through the telescopic arms 7 and the bag-stretching arms 8 to prevent the bag-twisting mechanism 14 from bending the inner bag opening;

[0026] The bag twisting arm 16 slides relatively along the base plate 15 to clamp the inner bag opening of the tightened tie wire, and the rotary motor 5 rotates to drive the bag twisting arm 16 to bend the inner bag opening;

[0027] The bag-pushing cylinder 4 pushes the bag-pushing arm 12 and the bag-pushing frame 13 to push the bent inner bag opening downward into the outer bag opening;

[0028] The bag-supporting cylinder 3 contracts upwards, lifting the outer bag opening upwards, so that the inner bag opening is completely placed in the outer bag opening, making it convenient for the next process to sew the outer bag opening.

[0029] The above is only a preferred embodiment of the present invention, and does not limit the present invention in other forms. Any technician familiar with the profession may use the above disclosed technical content to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention without departing from the technical solution of the present invention still belongs to the protection scope of the technical solution of the present invention.

Claims

1. An inner bag and outer bag assembly for a packaging machine adapted for packaging bags with inner and outer separation, comprising a support frame, characterized in that: A group of connecting brackets are arranged on the supporting frame, and a bag-supporting cylinder, a bag-pushing cylinder, and a rotating motor are arranged on the connecting brackets. The lower end of the piston rod of the bag-supporting cylinder is connected to a bag-supporting bracket, the bag-supporting bracket is provided with a telescopic arm, the telescopic arm is connected to a bag-supporting arm, and a telescopic cylinder is provided between the telescopic arm and the bag-supporting bracket; The telescopic arm, telescopic cylinder and bag-supporting arm are two sets, which are symmetrically arranged on both sides of the bag-supporting bracket; The lower end of the piston rod of the bag-pushing cylinder is connected to a bag-pushing device, and the bag-pushing device includes a base, a bag-pushing arm and a bag-pushing frame, one end of the bag-pushing arm is connected to the base, and the other end is connected to the bag-pushing frame; The width of the bag-holding frame is smaller than the distance between the two sets of bag-holding arms; The end of the output shaft of the rotary motor is connected to a bag twisting mechanism, which includes a base plate and two sets of bag twisting arms, and the bag twisting arms can slide back and forth on the base plate; The packaging bag with the inner bag opening tightened and tied is transported to the bag-stitching station, and the two sets of bag-stretching arms are first inserted between the inner bag opening and the outer bag opening of the packaging bag to stretch the outer bag opening outwards; The bag-supporting cylinder extends downward again, and pushes the outer bag downward through the telescopic arm and the bag-supporting arm to prevent the bag-twisting mechanism from bending the inner bag opening; The bag twisting arm slides relatively along the base plate to clamp the inner bag opening to tighten the tie wire, and the rotary motor rotates to drive the bag twisting arm to bend the inner bag opening; The bag-pushing cylinder pushes the bag-pushing arm and the bag-pushing frame to push the bent inner bag opening downward into the outer bag opening; The bag-supporting cylinder contracts upwards to lift the outer bag opening upwards, so that the inner bag opening is completely placed in the outer bag opening.

2. The inner bag-to-bag assembly of the packaging machine adapted for the inner and outer separation of the packaging bag according to claim 1, characterized in that: One end of the bag-pushing frame is connected to the end of the bag-pushing arm, and the other end extends toward the bag opening.

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