Bag rubbing mechanism

Abstract

The utility model discloses a bag rubbing mechanism, which aims at integrating suckers on a sucker seat, providing suction force for all the suckers through a negative pressure pipeline and being incapable of arranging too many air pipes, and adopts the technical scheme that the bag rubbing mechanism comprises a base plate, a swing arm, a mounting seat and a connecting rod, one end of the swing arm is rotatably connected with the base plate, and the other end of the swing arm is rotatably connected with the mounting seat; the mounting base is rotationally connected to the other end of the swing arm, one end of the connecting rod is hinged to the base plate, the other end of the connecting rod is hinged to the mounting base, and the connecting rod is parallel to the swing arm; a negative pressure pipeline is arranged on the mounting base and extends in the axial direction of the rotating axis of the swing arm, a suction cup base is fixed to the negative pressure pipeline, a plurality of suction cups are arranged on the suction cup base, a cavity is formed in the suction cup base, and the suction cups and the negative pressure pipeline are communicated through the cavity; and a first driving module is arranged on the base plate, and the first driving module drives the swing arm to rotate so as to drive the suction cup base to ascend and descend.

Description

Technical Field

[0001] The utility model belongs to the technical field of prefabricated bag processing equipment, and more specifically relates to a bag rubbing mechanism. Background Art

[0002] In the pre-made bag processing equipment, the bag mouth of the pre-made bag needs to be rubbed open to facilitate the subsequent bagging process.

[0003] In the prior art, two bag rubbing mechanisms are provided, each of which includes a plurality of suction cups, which can adsorb the bag surface of the prefabricated bag. When the two bag rubbing mechanisms move in opposite directions, the relative suction cups will move away from each other, thereby opening the bag opening. Since there are multiple suction cups, each suction cup needs to be connected to an air pipe, so that the bag rubbing mechanism needs to be arranged with multiple air pipes, which makes the bag rubbing mechanism very bloated and difficult to arrange in the prefabricated bag processing equipment. Utility Model Content

[0004] The main purpose of the utility model is to provide a bag rubbing mechanism, which aims to integrate the suction cup on the suction cup seat, provide suction force for all the suction cups through the negative pressure pipeline, and cannot arrange too many air pipes.

[0005] According to a first aspect of the utility model, a bag rubbing mechanism is provided, comprising a base plate, a swing arm, a mounting seat and a connecting rod, one end of the swing arm is rotatably connected to the base plate, the mounting seat is rotatably connected to the other end of the swing arm, one end of the connecting rod is hinged to the base plate, the other end of the connecting rod is hinged to the mounting seat, and the connecting rod is parallel to the swing arm;

[0006] A negative pressure pipe is provided on the mounting seat, and the negative pressure pipe extends axially along the rotation axis of the swing arm. A suction cup seat is fixed on the negative pressure pipe, and a plurality of suction cups are provided on the suction cup seat. A chamber is provided in the suction cup seat, and the chamber connects the suction cup and the negative pressure pipe;

[0007] A first driving module is disposed on the base plate, and the first driving module drives the swing arm to rotate so as to drive the suction cup seat to rise and fall.

[0008] In the above-mentioned bag rubbing mechanism, a second driving module is provided on the mounting seat, and the second driving module drives the negative pressure pipe to move axially along the rotation axis of the swing arm.

[0009] In the above-mentioned bag rubbing mechanism, the suction cup seat comprises a seat body, the suction cup is arranged on the seat body, a recessed portion is arranged on a side of the seat body facing away from the suction cup, and the recessed portion is communicated with the suction cup;

[0010] It also includes a cover body, which is connected to the base body to cover the recessed portion. The recessed portion and the cover body cooperate to form a chamber. A flow channel is provided in the cover body, and the flow channel connects the chamber and the negative pressure pipe.

[0011] In the above-mentioned bag rubbing mechanism, two protrusions are arranged on the seat body at intervals, and a space avoidance gap is formed between the two protrusions. The space avoidance gap extends along a first direction, which is perpendicular to the rotation axis of the swing arm, and the suction cup is arranged on the protrusion.

[0012] In the above-mentioned bag rubbing mechanism, the suction cups on the raised portion are divided into multiple rows along the first direction, the suction cups in each row that are farthest from the avoidance gap are outer suction cups, the spacing between the outer suction cups and the avoidance gap is the first spacing, and the first spacing between the suction cups in each row gradually decreases along the first direction.

[0013] In the above-mentioned bag rubbing mechanism, the suction cups on the two protruding parts are symmetrical about the avoidance gap.

[0014] One of the above technical solutions of the utility model has at least one of the following advantages or beneficial effects:

[0015] In the utility model, a plurality of suction cups are integrated on a suction cup seat, and a negative pressure pipe is used to install and move the suction cup seat. The negative pressure pipe is connected to a chamber in the suction cup seat to provide negative pressure for the chamber, so that all suction cups have adsorption capacity without the need to arrange a plurality of air pipes. The swing of the swing arm is then used to drive the negative pressure pipe to rise and fall, so that the suction cup seat can move up and down to adsorb and drive the bag surface of the prefabricated bag to move. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0017] Figure 1 It is a structural schematic diagram of the first embodiment of the utility model;

[0018] Figure 2 is a top view of the first embodiment of the utility model;

[0019] Figure 3 The first embodiment of the utility model Figure 2 AA section view;

[0020] Figure 4 This is a schematic structural diagram of a seat body according to a first embodiment of the utility model;

[0021] Figure 5 is a top view of the seat body of the first embodiment of the utility model;

[0022] Figure 6It is another structural schematic diagram of the seat body of the first embodiment of the utility model. DETAILED DESCRIPTION

[0023] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0024] The following disclosure provides many different embodiments or examples for implementing different solutions of the present invention.

[0025] Reference Figures 1 to 6 As shown, in one embodiment of the utility model, a bag rubbing mechanism includes a base plate 1, a swing arm 2, a mounting seat 3 and a connecting rod 4, one end of the swing arm 2 is rotatably connected to the base plate 1, the mounting seat 3 is rotatably connected to the other end of the swing arm 2, one end of the connecting rod 4 is hinged to the base plate 1, the other end of the connecting rod 4 is hinged to the mounting seat 3, and the connecting rod 4 is parallel to the swing arm 2, so the base plate 1, the swing arm 2, the mounting seat 3 and the connecting rod 4 constitute a parallelogram connecting rod mechanism;

[0026] A negative pressure pipe 5 is provided on the mounting seat 3, and the negative pressure pipe 5 extends axially along the rotation axis of the swing arm 2. A suction cup seat 6 is fixed on the negative pressure pipe 5, and a plurality of suction cups 7 are provided on the suction cup seat 6. A chamber is provided in the suction cup seat 6, and the chamber connects the suction cup 7 and the negative pressure pipe 5;

[0027] A first driving module 11 is provided on the base plate 1. The first driving module 11 drives the swing arm 2 to rotate, thereby driving the mounting seat 3 to rise and fall. Moreover, the mounting seat 3 is stable when rising and falling. The negative pressure pipe 5 will rise and fall with the mounting seat 3, thereby driving the suction cup seat 6 to rise and fall. When the suction cup seat 6 rises and falls, the suction cup 7 is kept facing upward or downward, and the suction cup 7 can absorb and drive the bag surface of the prefabricated bag to move;

[0028] At the same time, multiple suction cups 7 are integrated on the suction cup seat 6, and the suction cup seat 6 is installed and moved using a negative pressure pipe 5. The negative pressure pipe 5 is connected to the chamber in the suction cup seat 6 to provide negative pressure for the chamber, so that all suction cups 7 have adsorption capabilities without the need to arrange multiple air pipes.

[0029] In this embodiment, a second driving module 31 is provided on the mounting seat 3, and the second driving module 31 drives the negative pressure pipe 5 to move axially along the rotation axis of the swing arm 2; the second driving module 31 is generally a cylinder;

[0030] In practice, two bag rubbing mechanisms will be provided, and the two bag rubbing mechanisms will be arranged opposite to each other. The suction cup 7 will first absorb the bag surface of the prefabricated bag, and then the second driving module 31 will act first to allow the suction cup seat 6 to move axially along the rotation axis of the swing arm 2, and the movement directions of the suction cup seats 6 in the two bag rubbing mechanisms are opposite, thereby rubbing the bag open, and then the swing arm 2 swings, the suction cup seat 6 rises and falls, and the suction cup seats 6 of the two bag rubbing mechanisms move in opposite directions, thereby opening the bag mouth of the prefabricated bag.

[0031] In this embodiment, the suction cup seat 6 includes a seat body 61, and the suction cup 7 is arranged on the seat body 61. A recessed portion 611 is arranged on a side of the seat body 61 facing away from the suction cup 7, and the recessed portion 611 is connected to the suction cup 7.

[0032] It also includes a cover body 62, which is connected to the base body 61 to cover the recessed portion 611, and the recessed portion 611 and the cover body 62 cooperate to form a chamber, and a flow channel is provided in the cover body 62, and the flow channel connects the chamber and the negative pressure pipe 5;

[0033] Specifically, two protrusions 612 are arranged at intervals on the seat body 61, and a space 613 is formed between the two protrusions 612. The space 613 extends along a first direction, and the first direction is perpendicular to the rotation axis of the swing arm 2. The suction cup 7 is arranged on the protrusion 612;

[0034] When the suction cup seat 6 is in use, the first direction is the opening direction of the bag mouth of the prefabricated bag. The avoidance gap 613 can accommodate the bending position when the bag surface is deformed and convex, thereby avoiding wrinkles on the bag surface.

[0035] In this embodiment, the suction cups 7 on the protrusion 612 are divided into multiple rows along the first direction, and the suction cups 7 in each row of suction cups 7 that are farthest from the avoiding gap 613 are outer suction cups, and the distance between the outer suction cups and the avoiding gap 613 is a first distance h, and the first distance h of the suction cups 7 in each row gradually decreases along the first direction;

[0036] Arranging multiple rows of suction cups 7 along the first direction can ensure that the suction force is sufficient to adsorb the bag surface of the premade bag, and the suction cups 7 will not be too close to the sewing end of the premade bag and will not pull the sewing end; moreover, the row of suction cups 7 with the largest first spacing h will be adsorbed near the bag opening of the premade bag, and the first spacing h of each row of suction cups 7 gradually decreases along the first direction. Therefore, when the suction cups 7 adsorb the bag surface of the premade bag and rub the bag, the range of the convex deformation of the bag surface gradually becomes smaller inward, and the premade bag is not easy to be torn.

[0037] In this embodiment, the suction cups 7 on the two protrusions 612 are symmetrical about the space 613, so that the suction cups 7 can be more balanced when adsorbing the bag surface.

[0038] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A bag rubbing mechanism, characterized in that: It comprises a base plate, a swing arm, a mounting seat and a connecting rod, wherein one end of the swing arm is rotatably connected to the base plate, the mounting seat is rotatably connected to the other end of the swing arm, one end of the connecting rod is hinged to the base plate, the other end of the connecting rod is hinged to the mounting seat, and the connecting rod is parallel to the swing arm; A negative pressure pipe is provided on the mounting seat, and the negative pressure pipe extends axially along the rotation axis of the swing arm. A suction cup seat is fixed on the negative pressure pipe, and a plurality of suction cups are provided on the suction cup seat. A chamber is provided in the suction cup seat, and the chamber connects the suction cup and the negative pressure pipe; A first driving module is provided on the base plate, and the first driving module drives the swing arm to rotate, so as to drive the suction cup seat to rise and fall; The mounting seat is provided with a second driving module, and the second driving module drives the negative pressure pipe to move axially along the rotation axis of the swing arm.

2. The bag rubbing mechanism according to claim 1, characterized in that: The suction cup seat comprises a seat body, the suction cup is arranged on the seat body, a concave portion is arranged on a side of the seat body facing away from the suction cup, and the concave portion is communicated with the suction cup; It also includes a cover body, which is connected to the base body to cover the recessed portion. The recessed portion and the cover body cooperate to form a chamber. A flow channel is provided in the cover body, and the flow channel connects the chamber and the negative pressure pipe.

3. The bag rubbing mechanism according to claim 2, characterized in that: Two protrusions are arranged at intervals on the seat body, and a space is formed between the two protrusions. The space is extended along a first direction, and the first direction is perpendicular to the rotation axis of the swing arm. The suction cup is arranged on the protrusion.

4. The bag rubbing mechanism according to claim 3, characterized in that: The suction cups on the raised portion are divided into multiple rows along the first direction, the suction cups in each row that are farthest from the avoidance gap are outer suction cups, the spacing between the outer suction cups and the avoidance gap is a first spacing, and the first spacing of the suction cups in each row gradually decreases along the first direction.

5. The bag rubbing mechanism according to claim 3, characterized in that: The suction cups on the two protrusions are symmetrical about the avoidance gap.

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