Bag surface smoothing mechanism for plastic bag printing

Abstract

The utility model discloses a bag surface smoothing mechanism for plastic bag printing in the technical field of plastic bag printing, which comprises a bottom plate, four vertical rods are arranged at four corners of the upper end of the bottom plate, two operating frames are arranged on two sides of the center of the upper end of the bottom plate, four mounting rods are arranged between two ends of each operating frame and the four vertical rods, and the four mounting rods are arranged on the bottom plate. Adjusting and leveling structures are arranged in the two operation frames, and each adjusting and leveling structure comprises a fixed roller, two operation grooves, two bearing blocks, a movable roller, two first threaded sleeves and two first adjusting screw rods; the distance between the movable roller and the fixed roller and the contact strength are adjusted in a screw adjusting mode, the extrusion strength can be accurately controlled, and the subsequent extrusion force and the plastic bag smoothing effect can be effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic bag printing, in particular to a bag surface smoothing mechanism for plastic bag printing. Background Art

[0002] Plastic bags are made of plastic (commonly used plastics include polypropylene, polyester, nylon, etc.) and are essential items in people's daily lives. They are often used to carry other items. They are widely used because of their low cost, extremely light weight, large capacity, and easy storage. However, due to the disadvantages of plastic bags' extremely long degradation cycle and difficulty in disposal, some countries have banned their production and use.

[0003] Currently, most of the bag surface smoothing mechanisms used in plastic bag printing use a spring to push the mobile roller. The internal connection extrusion force is provided by the spring, which makes it impossible to accurately adjust the extrusion force and ensure the smoothing effect of the plastic bag. As the years of use increase, the spring elasticity becomes weaker and weaker, and the extrusion force it can provide will gradually become insufficient, affecting the smoothing effect. Therefore, a new technical solution needs to be designed to solve this problem. Utility Model Content

[0004] The purpose of the present utility model is to provide a bag surface smoothing mechanism for plastic bag printing, so as to solve the problem that the existing bag surface smoothing mechanism for plastic bag printing proposed in the above background technology adopts a spring pushing method to push the movable roller when in use, and the internal connection extrusion force is provided by the spring, which will result in the extrusion force cannot be accurately adjusted and the smoothing effect of the plastic bag cannot be guaranteed. Moreover, as the years of use gradually increase, the spring elastic force becomes weaker and weaker, and the extrusion force it can provide will gradually be insufficient, affecting the smoothing effect.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a bag surface smoothing mechanism for plastic bag printing, comprising a base plate, four vertical rods provided at the four corners of the upper end of the base plate, two operating frames provided on both sides of the center of the upper end of the base plate, four mounting rods provided between the ends of the two operating frames and the four vertical rods, an adjustment and leveling structure provided in the two operating frames, the adjustment and leveling structure comprising a fixed roller, two operating slots, two bearing blocks, a movable roller, two first threaded sleeves, and two first adjustment screws;

[0006] The two ends of the fixed roller are movably embedded in the two operating frames, the two operating grooves are respectively opened at the upper ends of the two operating frames, the two bearing blocks are movably embedded in the two operating grooves, the two ends of the movable roller are movably embedded in the two bearing blocks, the two first threaded sleeves are respectively fixedly embedded in the upper walls of the two operating frames, and the bottom ends are connected to the two operating grooves, the two first adjusting screws are respectively movably embedded in the two first threaded sleeves, and the bottom ends are respectively movably connected to the top centers of the two bearing blocks.

[0007] As a preferred embodiment of the bag surface smoothing mechanism for plastic bag printing of the present invention, four auxiliary rollers are installed between the four mounting rods, and both ends of the four auxiliary rollers are movably installed in the four mounting rods respectively.

[0008] As a preferred embodiment of the plastic bag printing surface smoothing mechanism of the present invention, the upper end of the bottom plate is provided with a traction structure, which includes four guide rods, four guide sleeves, two connecting rods, two support plates, two traction rollers and an adjustment assembly;

[0009] The four guide rods are respectively installed at the four corners of the upper end of the base plate, the four guide sleeves are respectively movably mounted on the upper ends of the four guide rods, the two ends of the two connecting rods are respectively connected to the side walls of the four guide sleeves, the two ends of the two support plates are respectively connected to the two ends of the two connecting rods, the two traction rollers are respectively movably embedded in the two support plates, one end of the adjustment component is connected to the two connecting rods, and the other end is connected to both sides of the upper end of the base plate.

[0010] As a preferred embodiment of the plastic bag printing bag surface smoothing mechanism of the present invention, the adjustment assembly includes two adjustment plates, two second threaded sleeves and two second adjustment screws;

[0011] The two ends of the two adjustment plates are respectively connected to the two connecting rods, the two second threaded sleeves are respectively fixedly embedded in the centers of the two adjustment plates, the two second adjustment screws are respectively movably embedded in the two second threaded sleeves, and the bottom ends are respectively movably connected to the two sides of the upper end of the base plate.

[0012] As a preferred embodiment of the bag surface smoothing mechanism for plastic bag printing of the present invention, a first connecting bearing is provided at the connection between the two first adjusting screws and the two bearing blocks.

[0013] As a preferred embodiment of the bag surface smoothing mechanism for plastic bag printing of the present invention, two second connecting bearings are provided at the connection points between the two second adjusting screws and the two sides of the base plate.

[0014] As a preferred embodiment of the bag surface smoothing mechanism for plastic bag printing of the present invention, a roller mounting frame is provided at the connection between the traction roller and the support plate.

[0015] Beneficial effects: Compared with the prior art, the beneficial effects of the present invention are: the setting of the bag surface smoothing mechanism for printing plastic bags is reasonable in structure design;

[0016] 1. The distance and contact force between the mobile roller and the fixed roller are adjusted by screw adjustment, which can accurately control the extrusion force and effectively ensure the subsequent extrusion force and the flattening effect of the plastic bag;

[0017] 2. Through the traction structure and adjustment components, the conveying traction force of the plastic bags can be adjusted according to different printing specifications of the plastic bags, and the plastic bags can be fully flattened by cooperating with the movable roller and the fixed roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model on the main visual axis side;

[0019] Figure 2 This is a schematic diagram of the rear-view stereoscopic structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0021] Figure 4 This is a schematic structural diagram of point A of the present utility model.

[0022] In the figure: 1, base plate, 2, vertical pole, 3, operating frame, 4, mounting rod, 5, fixed roller, 6, operating groove, 7, bearing block, 8, mobile roller, 9, first threaded sleeve, 10, first adjusting screw, 11, auxiliary roller, 12, guide rod, 13, guide sleeve, 14, connecting rod, 15, support plate, 16, traction roller, 17, adjusting plate, 18, second threaded sleeve, 19, second adjusting screw, 20, first connecting bearing, 21, second connecting bearing, 22, roller mounting frame. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-4, the utility model provides a technical solution:

[0025] In this technical solution, a bag surface smoothing mechanism for plastic bag printing includes a base plate 1, four vertical rods 2 are provided at the four corners of the upper end of the base plate 1, two operating frames 3 are provided on both sides of the center of the upper end of the base plate 1, four mounting rods 4 are provided between the ends of the two operating frames 3 and the four vertical rods 2, and an adjustment and leveling structure is provided inside the two operating frames 3. The adjustment and leveling structure includes a fixed roller 5, two operating slots 6, two bearing blocks 7, a movable roller 8, two first threaded sleeves 9, and two first adjustment screws 10;

[0026] The two ends of the fixed roller 5 are respectively movably embedded in the two operating frames 3, the two operating grooves 6 are respectively opened at the upper ends of the two operating frames 3, the two bearing blocks 7 are respectively movably embedded in the two operating grooves 6, the two ends of the movable roller 8 are respectively movably embedded in the two bearing blocks 7, the two first threaded sleeves 9 are respectively fixedly embedded in the upper wall surfaces of the two operating frames 3, and the bottom ends are connected to the two operating grooves 6, the two first adjusting screws 10 are respectively movably embedded in the two first threaded sleeves 9, and the bottom ends are respectively movably connected to the top centers of the two bearing blocks 7.

[0027] In this technical solution, when printing plastic bags, the device is moved to a specified position and supported as a whole by the base plate 1. Then, one end of the plastic bag on the upper end of the discharge roller is passed through the auxiliary roller 11 and the traction structure in sequence, and connected to the reel, so that one end of the plastic bag passes between the fixed roller 5 and the movable roller 8. Then, according to the thickness of the plastic bag, the two first adjusting screws 10 in the two first threaded sleeves 9 are screwed, and the heights of the two bearing blocks 7 in the two operating grooves 6 are changed by the two first adjusting screws 10 to adjust the distance between the movable roller 8 and the fixed roller 5. The plastic bag is straightened and pressed by cooperating with the fixed roller 5, and the straightening force of the plastic bag is adjusted by the traction structure to ensure the tension and straightening effect of the plastic bag.

[0028] In some technical solutions, reference Figure 1 Four auxiliary rollers 11 are installed between the four mounting rods 4, and both ends of the four auxiliary rollers 11 are movably installed in the four mounting rods 4 respectively.

[0029] A traction structure is provided at the upper end of the base plate 1, which includes four guide rods 12, four guide sleeves 13, two connecting rods 14, two support plates 15, two traction rollers 16 and an adjustment assembly;

[0030] The four guide rods 12 are respectively installed at the four corners of the upper end of the base plate 1, and the four guide sleeves 13 are respectively movably sleeved on the upper ends of the four guide rods 12. The two ends of the two connecting rods 14 are respectively connected to the side walls of the four guide sleeves 13, and the two ends of the two support plates 15 are respectively connected to the two ends of the two connecting rods 14. The two traction rollers 16 are respectively movably embedded in the two support plates 15. One end of the adjustment component is connected to the two connecting rods 14, and the other end is connected to both sides of the upper end of the base plate 1.

[0031] In this technical solution, when smoothing the plastic bag, one end of the plastic bag is passed through four auxiliary rollers 11 and two traction rollers 16 in sequence. The height of the two connecting rods 14 and the four guide sleeves 13 at the upper ends of the four guide rods 12 can be changed through the adjustment component, and the height of the traction roller 16 at the upper end of the support plate 15 can be adjusted. The tension of the plastic bag is adjusted by changing the height of the traction roller 16, and the plastic bag is smoothed in cooperation with the movable roller 8 and the fixed roller 5.

[0032] In some technical solutions, reference Figure 1 , the adjustment assembly includes two adjustment plates 17, two second threaded sleeves 18 and two second adjustment screws 19;

[0033] The two ends of the two adjustment plates 17 are respectively connected to the two connecting rods 14, and the two second threaded sleeves 18 are respectively fixedly embedded in the centers of the two adjustment plates 17. The two second adjustment screws 19 are respectively movably embedded in the two second threaded sleeves 18, and the bottom ends are respectively movably connected to the two sides of the upper end of the base plate 1.

[0034] In this technical solution, when adjusting the height of the traction roller 16, the two second adjusting screws 19 in the two second threaded sleeves 18 are screwed, and the distance between the adjustment plate 17 and the base plate 1 is changed by the two second adjusting screws 19, so as to adjust the height of the two connecting rods 14 and the traction roller 16.

[0035] In some technical solutions, reference Figure 1 A first connecting bearing 20 is provided at the connection between the two first adjusting screws 10 and the two bearing blocks 7, two second connecting bearings 21 are provided at the connection between the two second adjusting screws 19 and the two sides of the base plate 1, and a roller mounting frame 22 is provided at the connection between the traction roller 16 and the support plate 15.

[0036] Working principle:

[0037] When printing on plastic bags, the device is moved to a designated position and supported as a whole by the bottom plate 1. Then, one end of the plastic bag on the upper end of the unwinding roller passes through the auxiliary roller 11 and the traction structure in sequence and is connected to the reel, so that one end of the plastic bag passes between the fixed roller 5 and the movable roller 8. Then, according to the thickness of the plastic bag, the two first adjusting screws 10 in the two first threaded sleeves 9 are screwed to change the height of the two bearing blocks 7 in the two operating grooves 6 through the two first adjusting screws 10, thereby adjusting the distance between the movable roller 8 and the fixed roller 5. The plastic bag is smoothed and compacted by cooperating with the mobile roller 8 and the fixed roller 5. The two second adjusting screws 19 in the two second threaded sleeves 18 are screwed, and the distance between the adjusting plate 17 and the bottom plate 1 is changed by the two second adjusting screws 19. The height of the two connecting rods 14 and the four guide sleeves 13 at the upper ends of the four guide rods 12 are changed, and the height of the traction roller 16 at the upper end of the support plate 15 is adjusted. The tension of the plastic bag is adjusted by changing the height of the traction roller 16. In cooperation with the mobile roller 8 and the fixed roller 5, the plastic bag is smoothed.

[0038] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0039] While the present invention has been described above with reference to exemplary embodiments, various modifications may be made and equivalent components may be substituted without departing from the scope of the present invention. In particular, as long as no structural conflicts exist, the various features of the disclosed embodiments may be combined with one another in any manner. The omission of an exhaustive description of these combinations in this specification is solely for the sake of space and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A bag surface smoothing mechanism for plastic bag printing, comprising a bottom plate (1), characterized in that: Four vertical poles (2) are provided at the four corners of the upper end of the base plate (1), two operating frames (3) are provided on both sides of the center of the upper end of the base plate (1), four mounting rods (4) are provided between the two ends of the two operating frames (3) and the four vertical poles (2), and an adjustment and leveling structure is provided in the two operating frames (3), and the adjustment and leveling structure includes a fixed roller (5), two operating slots (6), two bearing blocks (7), a movable roller (8), two first threaded sleeves (9) and two first adjustment screws (10); The two ends of the fixed roller (5) are movably embedded in the two operating frames (3), the two operating grooves (6) are respectively opened at the upper ends of the two operating frames (3), the two bearing blocks (7) are movably embedded in the two operating grooves (6), the two ends of the movable roller (8) are respectively movably embedded in the two bearing blocks (7), the two first threaded sleeves (9) are respectively fixedly embedded in the upper wall surfaces of the two operating frames (3), and the bottom ends are communicated with the two operating grooves (6), and the two first adjusting screws (10) are respectively movably embedded in the two first threaded sleeves (9), and the bottom ends are respectively movably connected to the top centers of the two bearing blocks (7).

2. A plastic bag printing bag surface smoothing mechanism according to claim 1, characterized in that: Four auxiliary rollers (11) are installed between the four mounting rods (4), and both ends of the four auxiliary rollers (11) are movably installed in the four mounting rods (4).

3. The plastic bag printing bag surface smoothing mechanism according to claim 1, characterized in that: A traction structure is provided at the upper end of the base plate (1), and the traction structure comprises four guide rods (12), four guide sleeves (13), two connecting rods (14), two support plates (15), two traction rollers (16) and an adjustment component; The four guide rods (12) are respectively installed at the four corners of the upper end of the base plate (1); the four guide sleeves (13) are respectively movably sleeved on the upper ends of the four guide rods (12); the two ends of the two connecting rods (14) are respectively connected to the side walls of the four guide sleeves (13); the two ends of the two support plates (15) are respectively connected to the two ends of the two connecting rods (14); the two traction rollers (16) are respectively movably embedded in the two support plates (15); one end of the adjustment component is connected to the two connecting rods (14), and the other end is connected to both sides of the upper end of the base plate (1).

4. A plastic bag surface smoothing mechanism for printing according to claim 3, characterized in that: The adjustment assembly comprises two adjustment plates (17), two second threaded sleeves (18) and two second adjustment screws (19); The two ends of the two adjustment plates (17) are respectively connected to the two connecting rods (14), the two second threaded sleeves (18) are respectively fixedly embedded in the centers of the two adjustment plates (17), and the two second adjustment screws (19) are respectively movably embedded in the two second threaded sleeves (18), and the bottom ends are respectively movably connected to the two sides of the upper end of the bottom plate (1).

5. The plastic bag printing bag surface smoothing mechanism according to claim 1, characterized in that: A first connecting bearing (20) is provided at the connection between the two first adjusting screws (10) and the two bearing blocks (7).

6. The plastic bag printing bag surface smoothing mechanism according to claim 4, characterized in that: Two second connecting bearings (21) are provided at the connection points between the two second adjusting screws (19) and the two sides of the base plate (1).

7. The plastic bag printing bag surface smoothing mechanism according to claim 3, characterized in that: A roller shaft mounting frame (22) is provided at the connection between the traction roller (16) and the support plate (15).

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