Automatic edge folding device for packaging bag

Abstract

The automatic edge folding device for the packaging bag comprises a base, a conveying belt is arranged in the base, an adjusting groove is formed in the upper surface of the base, the inner surface of the adjusting groove is connected with a supporting block in a sliding mode, the inner surface of the supporting block is in threaded connection with a threaded rod, and the threaded rod is in threaded connection with the conveying belt. The end, away from the supporting block, of the threaded rod is fixedly connected with an adjusting rotary disc, the upper surface of the supporting block is fixedly connected with an edge folding plate, the two sides of the base are fixedly connected with fixing frames, and the upper surfaces of the fixing frames are fixedly connected with telescopic air cylinders. According to the packaging bag edge folding device, a packaging bag can be tightly pressed when the edge folding plate folds the edge of the packaging bag, the packaging bag conveying flatness during edge folding is improved, the packaging bag is prevented from generating wrinkles to affect the edge folding quality, the two-way screw can drive the sliding block to move to adjust the distance between the pressing wheels, packaging bags of different specifications can be conveniently pressed, and the practicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of packaging bag production technology, and in particular to an automatic folding device for packaging bags. Background Technology

[0002] Packaging bags are used to package various products. Their main functions are to protect the products, facilitate transportation and storage, and also have a certain display function. In the production process of packaging bags, in order to ensure the appearance of the packaging bags, improve the sealing effect and strength of the packaging bags, and facilitate the stacking and packing of the packaging bags, it is generally necessary to fold the edges of the packaging bags. Automatic folding devices can not only improve production efficiency, but also ensure the consistency of folding quality and improve product quality.

[0003] Folding devices typically fold the edges of packaging bags using folding plates. However, existing folding devices exert a pushing force on the edges of the packaging bags during folding, which can easily cause wrinkles and affect the folded dimensions, as well as the appearance and quality of the packaging bags. Utility Model Content

[0004] The purpose of this utility model is to provide an automatic folding device for packaging bags, which facilitates the smooth transport of packaging bags when the folding plate folds the packaging bags, and avoids wrinkles in the packaging bags that affect the folding quality.

[0005] This utility model also provides an automatic folding device for packaging bags, comprising: a base, a conveyor belt inside the base, an adjustment groove on the upper surface of the base, a support block slidably connected to the inner surface of the adjustment groove, a threaded rod threadedly connected to the inner surface of the support block, an adjustment turntable fixedly connected to the end of the threaded rod away from the support block, and a folding plate fixedly connected to the upper surface of the support block.

[0006] The base is fixedly connected to two fixed frames on both sides. A telescopic cylinder is fixedly connected to the upper surface of the fixed frame. A lifting frame is fixedly connected to the output end of the telescopic cylinder. A slider is slidably connected to the inner surface of the lifting frame. A bidirectional screw is threadedly connected to the inner surface of the slider. A knob is fixedly connected to the left end of the bidirectional screw. A limit frame is fixedly connected to the lower surface of the slider. A first spring is fixedly connected to the upper inner wall of the limit frame. A wheel frame is fixedly connected to the other end of the first spring. A pressure roller is provided at the lower end of the wheel frame.

[0007] According to the automatic folding device for packaging bags, a support frame is fixedly connected to the upper surface of the base, an mounting block is slidably connected to the inner surface of the support frame, a squeezing roller is rotatably connected to the inner surface of the mounting block, a second spring is fixedly connected to the upper surface of the mounting block, an adjusting block is fixedly connected to the other end of the second spring, and an adjusting rod is rotatably connected to the upper surface of the adjusting block, which facilitates the compaction of the folded packaging bag and prevents the fold from loosening and opening under the elasticity of the packaging bag itself, thus affecting subsequent processes.

[0008] According to the aforementioned automatic folding device for packaging bags, the outer surface of the adjusting rod is threadedly connected to the support frame, and the outer surface of the adjusting block is slidably connected to the support frame, so as to facilitate the adjustment of the spring pressure by rotating the adjusting rod to drive the adjusting block to move. This achieves the adjustment of the pressure of the squeezing roller on the packaging bag.

[0009] According to the automatic folding device for packaging bags, a guide block is fixedly connected to the lower surface of the folding plate, and a guide groove is provided on the upper surface of the base. The inner surface of the guide groove is slidably connected to the guide block, which facilitates the movement of the folding plate 7 and avoids the folding plate 7 from shifting during the movement, thus affecting the folding quality.

[0010] According to the automatic folding device for packaging bags, the lower surface of the base is fixedly connected with a bracket, and the bracket is arranged in a rectangular array of four brackets.

[0011] According to the automatic folding device for packaging bags, the outer surface of the lifting frame is slidably connected to the fixed frame, and the outer surface of the bidirectional screw is rotatably connected to the lifting frame, which facilitates the adjustment of the spacing and height of the pressure rollers and makes it convenient to press packaging bags of different specifications.

[0012] According to the aforementioned automatic folding device for packaging bags, the outer surface of the threaded rod is rotatably connected to the base, and the lower surface of the folding plate is slidably connected to the base, which facilitates the rotation of the adjusting turntable to drive the threaded rod to rotate and move the folding plate through the support block, thereby adjusting the spacing of the folding plates and realizing the adjustment of the folding size.

[0013] According to the automatic folding device for packaging bags, the outer surface of the wheel frame is slidably connected to the limiting frame.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. By setting up the limit frame, the first spring, the wheel frame and the pressure roller, the packaging bag can be pressed tightly when the folding plate folds the packaging bag, which improves the flatness of the packaging bag during folding and prevents the packaging bag from wrinkling and affecting the folding quality.

[0016] 2. The bidirectional screw can drive the slider to move and adjust the spacing of the pressure rollers, making it easier to press packaging bags of different sizes and improving the practicality of the device.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0019] Figure 1 This is an overall structural diagram of an automatic folding device for packaging bags according to this utility model;

[0020] Figure 2 This is a cross-sectional view of an automatic folding device for packaging bags according to the present invention;

[0021] Figure 3 For this Figure 2 Enlarged view of point A in the middle;

[0022] Figure 4 This is a partial exploded view of the automatic folding device for packaging bags according to this utility model.

[0023] Legend:

[0024] 1. Base; 2. Conveyor belt; 3. Adjusting groove; 4. Support block; 5. Threaded rod; 6. Adjusting turntable; 7. Folding plate; 8. Fixing frame; 9. Telescopic cylinder; 10. Lifting frame; 11. Slider; 12. Bidirectional screw; 13. Knob; 14. Limiting frame; 15. First spring; 16. Wheel frame; 17. Pressure roller; 18. Support frame; 19. Mounting block; 20. Extrusion roller; 21. Second spring; 22. Adjusting block; 23. Adjusting rod; 24. Bracket; 25. Guide block; 26. Guide groove. Detailed Implementation

[0025] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0026] Reference Figure 1-4This utility model discloses an automatic folding device for packaging bags, comprising: a base 1, with four supports 24 fixedly connected to the lower surface of the base 1 in a rectangular array; a conveyor belt 2 inside the base 1 for convenient conveying of the packaging bags; an adjustment groove 3 on the upper surface of the base 1, with a support block 4 slidably connected to the inner surface of the adjustment groove 3, allowing adjustment of the support block 4 by rotating the threaded rod 5 via an adjustment turntable 6, thereby adjusting the folding plate 7 and facilitating adjustment of the folding size; the inner surface of the support block 4... A threaded rod 5 is connected to the support block 4. The outer surface of the threaded rod 5 is rotatably connected to the base 1. An adjusting turntable 6 is fixedly connected to the end of the threaded rod 5 away from the support block 4. A folding plate 7 is fixedly connected to the upper surface of the support block 4. The lower surface of the folding plate 7 is slidably connected to the base 1. A guide block 25 is fixedly connected to the lower surface of the folding plate 7. A guide groove 26 is provided on the upper surface of the base 1. The inner surface of the guide groove 26 is slidably connected to the guide block 25 to facilitate the movement of the folding plate 7 and prevent the folding plate 7 from shifting during the movement, which would affect the folding quality.

[0027] Fixed frames 8 are fixedly connected to both sides of the base 1. A telescopic cylinder 9 is fixedly connected to the upper surface of the fixed frame 8, which facilitates the up-and-down movement of the lifting frame 10 to adjust the height of the pressure roller 17 and the clamping force of the pressure roller 17. The output end of the telescopic cylinder 9 is fixedly connected to the lifting frame 10. The outer surface of the lifting frame 10 is slidably connected to the fixed frame 8. A slider 11 is slidably connected to the inner surface of the lifting frame 10. A double-ended screw 12 is threadedly connected to the inner surface of the slider 11. The outer surface of the double-ended screw 12 is rotatably connected to the lifting frame 10. The left end of the double-ended screw 12 is fixed. A knob 13 is connected to facilitate the rotation of the knob 13 to drive the bidirectional screw 12 to rotate, thereby adjusting the spacing of the pressure rollers 17 via the slider 11. This allows the pressure rollers 17 to press the packaging bags that do not meet the specified specifications. A limit frame 14 is fixedly connected to the lower surface of the slider 11. A first spring 15 is fixedly connected to the upper inner wall of the limit frame 14, which allows the wheel frame 16 to drive the pressure rollers 17 to always be in a pressed state with the packaging bags. The other end of the first spring 15 is fixedly connected to the wheel frame 16. The outer surface of the wheel frame 16 is slidably connected to the limit frame 14, and the lower end of the wheel frame 16 is provided with the pressure rollers 17.

[0028] A support frame 18 is fixedly connected to the upper surface of the base 1. A mounting block 19 is slidably connected to the inner surface of the support frame 18. A squeezing roller 20 is rotatably connected to the inner surface of the mounting block 19, which facilitates the squeezing roller 20 to compact the folded packaging bag. A second spring 21 is fixedly connected to the upper surface of the mounting block 19. An adjusting block 22 is fixedly connected to the other end of the second spring 21. The outer surface of the adjusting block 22 is slidably connected to the support frame 18. An adjusting rod 23 is rotatably connected to the upper surface of the adjusting block 22, which facilitates the adjustment of the pressure of the second spring 21 by rotating the adjusting rod 23. This allows the squeezing roller 20 to adjust the pressure of the packaging bag. The outer surface of the adjusting rod 23 is threadedly connected to the support frame 18.

[0029] Working principle: The packaging bag is placed on the conveyor belt 2 for conveying. During the conveying process, it is folded by the folding plate 7. Rotating the adjusting turntable 6 drives the threaded rod 5 to rotate. The rotation of the threaded rod 5 drives the support block 4 to move in the adjusting groove 3. The movement of the support block 4 drives the folding plate 7 to move, adjusting the distance between the folding plates 7 and the size of the fold. The telescopic cylinder 9 drives the lifting frame 10 to move up and down. The up and down movement of the lifting frame 10 drives the limit frame 14 to move up and down through the slider 11, thereby driving the wheel frame 16 to move up and down. The first spring 15 presses the pressure roller 17 against the packaging bag. The force is adjusted by turning the knob 13 to drive the bidirectional screw 12 to rotate. The rotation of the bidirectional screw 12 drives the slider 11 to move and adjust the distance between the pressure rollers 17, which facilitates the pressing of packaging bags of different specifications. After the folding is completed, the folded edge of the packaging bag is pressed by the action of the extrusion roller 20 and the conveyor belt 2 to prevent the folded edge from loosening and opening under the elasticity of the packaging bag itself, which would affect the subsequent processes. Turning the adjusting rod 23 drives the adjusting block 22 to move inside the mounting block 19 to adjust the elastic force of the second spring 21, thereby adjusting the pressing force between the extrusion roller 20 and the conveyor belt 2 through the mounting block 19.

[0030] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An automatic folding device for packaging bags, characterized in that, include: A base (1) is provided with a conveyor belt (2) inside the base (1). An adjustment groove (3) is provided on the upper surface of the base (1). A support block (4) is slidably connected to the inner surface of the adjustment groove (3). A threaded rod (5) is threadedly connected to the inner surface of the support block (4). An adjustment turntable (6) is fixedly connected to the end of the threaded rod (5) away from the support block (4). A folded edge plate (7) is fixedly connected to the upper surface of the support block (4). The base (1) is fixedly connected to two sides of a fixed frame (8). A telescopic cylinder (9) is fixedly connected to the upper surface of the fixed frame (8). A lifting frame (10) is fixedly connected to the output end of the telescopic cylinder (9). A slider (11) is slidably connected to the inner surface of the lifting frame (10). A bidirectional screw (12) is threadedly connected to the inner surface of the slider (11). A knob (13) is fixedly connected to the left end of the bidirectional screw (12). A limit frame (14) is fixedly connected to the lower surface of the slider (11). A first spring (15) is fixedly connected to the upper inner wall of the limit frame (14). A wheel frame (16) is fixedly connected to the other end of the first spring (15). A pressure wheel (17) is provided at the lower end of the wheel frame (16).

2. The automatic folding device for packaging bags according to claim 1, characterized in that, A support frame (18) is fixedly connected to the upper surface of the base (1). A mounting block (19) is slidably connected to the inner surface of the support frame (18). A pressing roller (20) is rotatably connected to the inner surface of the mounting block (19). A second spring (21) is fixedly connected to the upper surface of the mounting block (19). An adjusting block (22) is fixedly connected to the other end of the second spring (21). An adjusting rod (23) is rotatably connected to the upper surface of the adjusting block (22).

3. The automatic folding device for packaging bags according to claim 2, characterized in that, The outer surface of the adjusting rod (23) is threadedly connected to the support frame (18), and the outer surface of the adjusting block (22) is slidably connected to the support frame (18).

4. The automatic folding device for packaging bags according to claim 1, characterized in that, The lower surface of the folded edge plate (7) is fixedly connected to a guide block (25), and the upper surface of the base (1) is provided with a guide groove (26). The inner surface of the guide groove (26) is slidably connected to the guide block (25).

5. The automatic folding device for packaging bags according to claim 1, characterized in that, The lower surface of the base (1) is fixedly connected to a bracket (24), and the number of brackets (24) is four and arranged in a rectangular array.

6. The automatic folding device for packaging bags according to claim 1, characterized in that, The outer surface of the lifting frame (10) is slidably connected to the fixed frame (8), and the outer surface of the bidirectional screw (12) is rotatably connected to the lifting frame (10).

7. The automatic folding device for packaging bags according to claim 1, characterized in that, The outer surface of the threaded rod (5) is rotatably connected to the base (1), and the lower surface of the folded plate (7) is slidably connected to the base (1).

8. The automatic folding device for packaging bags according to claim 1, characterized in that, The outer surface of the wheel frame (16) is slidably connected to the limiting frame (14).

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