Express bag film blowing unit

By adopting a winding and guiding mechanism with a sliding plate and fixed knob design in the blown film unit for express delivery bags, the equipment achieves flexible adjustment and compact layout, solving the problems of large equipment footprint and complex operation, and improving practicality and convenience.

CN224224516UActive Publication Date: 2026-05-12JU DI GAO KE JI FA ZHAN (SI CHUAN) YOU XIAN GONG SI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JU DI GAO KE JI FA ZHAN (SI CHUAN) YOU XIAN GONG SI
Filing Date
2025-05-22
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing blown film extrusion machines for express delivery bags are large and difficult to adjust, occupy a large area, and are not practical or convenient.

Method used

The winding and guiding mechanisms, which employ a sliding plate and fixed knob design, combined with a compact frame layout, enable flexible adjustment and retraction of each mechanism, reducing the floor space required.

Benefits of technology

It improves the adaptability and convenience of the equipment, simplifies the operation process, reduces the difficulty of operation, and saves floor space.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224224516U_ABST
    Figure CN224224516U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of express bag film blowing, and discloses an express bag film blowing unit which comprises a main body mechanism, a guide mechanism is arranged in the middle of the front face of the main body mechanism, a winding mechanism is arranged at the lower end of the front face of the main body mechanism, and a blow molding mechanism is arranged at the bottom end of the main body mechanism. The winding mechanism comprises two first sliding plates, supporting frames are fixedly arranged on one sides of the two first sliding plates, first sliding rails are fixedly arranged at the upper ends of the two supporting frames, a third sliding plate is arranged between the two supporting frames in a sliding mode, and first fixing rotary knobs are arranged at the upper ends and the lower ends of the two first sliding plates in a threaded mode. And two third fixing knobs are arranged at one ends of the two supporting frames in a threaded mode. According to the utility model, compact space occupation, flexible operation and adjustment, good cooling effect and stable traction winding are realized, and the practicability and convenience of the whole unit are improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to express bag blowing film technical field especially relates to an express bag blowing film unit. BACKGROUND

[0002] The express bag blowing film unit is a plastic processing equipment for producing express bags, which mainly functions to make plastic raw materials into films through a blowing process and then into express bags through subsequent processing.

[0003] The existing patent (announcement number: CN208324144U) discloses an express bag blowing film machine, which comprises a plastic extruder and a die head, characterized in that the plastic extruder comprises an extruder A and an extruder B, the die head is provided with an outer ring flow channel and an inner ring flow channel, the outer ring flow channel is located outside the inner ring flow channel, and the outer ring flow channel and the inner ring flow channel are coaxially arranged, the outer ring flow channel inlet and the inner ring flow channel inlet are arranged on the lower part of the die head, the outer ring flow channel inlet is communicated with the extruder A, the inner ring flow channel inlet is communicated with the extruder B, and the outer ring flow channel outlet and the inner ring flow channel outlet are arranged on the upper end surface of the die head. The outer ring flow channel and the inner ring flow channel are arranged in the die head, a circle of outer layer plastic film can be blown out in the outer ring flow channel, and a circle of inner layer plastic film can be blown out in the inner ring flow channel, so that the inner layer plastic film is wrapped in the inner layer by the outer layer plastic film in the blowing process, and the production efficiency of double-layer express bags is improved.

[0004] The inventor found that the existing technology has the following problems in the process of implementing the present application: most of the existing express bag blowing film units are large combined devices, and it is difficult to adjust the unit after the installation of each structure during actual operation. The overall land occupation of the device unit is large, and the practicality and convenience are not good.

[0005] Therefore, the skilled in the art provides an express bag blowing film unit to solve the problems in the background art. UTILITY MODEL CONTENTS

[0006] The utility model aims at solving the shortcomings in the prior art and provides an express bag blowing film unit, which realizes compact space occupation, flexible operation adjustment, good cooling effect and stable traction and winding, and improves the overall practicality and convenience of the unit.

[0007] To achieve the above object, the utility model provides the following technical scheme:

[0008] An express bag blowing film unit, comprising a main body mechanism, a guide mechanism is arranged at the front middle position of the main body mechanism, a winding mechanism is arranged at the front lower end of the main body mechanism, and a blowing mechanism is arranged at the bottom end of the main body mechanism.

[0009] The winding mechanism comprises two first sliding plates, one side of each of the two first sliding plates is fixedly provided with a support frame, the upper end of each of the two support frames is fixedly provided with a first sliding rail, a third sliding plate is slidably arranged between the two support frames, the upper and lower ends of each of the two first sliding plates are threadedly provided with a first fixed knob, and one end of each of the two support frames is threadedly provided with two third fixed knobs.

[0010] Further, the surface of each of the two first sliding rails is slidably provided with a second sliding plate, the bottom end of one side of each of the two second sliding plates is threadedly provided with two second fixed knobs, the upper surface of the third sliding plate is fixedly provided with a bottom plate, and one side of the bottom plate is fixedly provided with a vertical plate.

[0011] Further, one side of the vertical plate is fixedly provided with a winding motor, the output end of the winding motor is fixedly provided with a winding roller, and the other side of the vertical plate is rotatably provided with a first guide roller.

[0012] Further, the guide mechanism comprises two fourth sliding plates, the surface of each of the two fourth sliding plates is threadedly provided with two fourth fixed knobs, one side of each of the two fourth sliding plates is fixedly provided with a guide plate, and the second guide roller is rotatably arranged between the two guide plates.

[0013] Further, the main body mechanism comprises a support frame, the upper end of the support frame is fixedly provided with a support plate, the upper surface of the support plate is fixedly provided with a protective fence around, one side of the support plate is fixedly provided with a ladder.

[0014] Further, the upper surface of the support plate is fixedly provided with a traction device, the lower end of the traction device is hingedly provided with a rolling type chevron plate, one side of the traction device is rotatably provided with a third guide roller, and one side of the support frame is fixedly provided with two second sliding rails.

[0015] Further, the blowing mechanism comprises a single-screw extruder, the upper end of the single-screw extruder is fixedly provided with a feeding device, and the output end of the single-screw extruder is fixedly provided with a die head.

[0016] Further, the upper end of the die head is fixedly provided with an air ring, and one side of the air ring is fixedly connected with a fan.

[0017] The utility model has the advantages of:

[0018] 1、The utility model discloses a express bag blowing film unit, compared with the prior art express bag blowing film unit, the express bag blowing film unit is designed by combining the sliding plate and the fixed knob of the winding mechanism and the guide mechanism, the user can conveniently adjust the position of each mechanism according to the actual production demand during use, the adaptability of the equipment is improved during overall use, the operation process is simplified, the operation difficulty is reduced, and the practicability of the device as a whole is improved.

[0019] 2、The utility model provides a kind of express bag film blowing unit, compared with prior express bag film blowing unit, the express bag film blowing unit is integrated in a compact frame by reasonable layout, winding mechanism, guide mechanism, main body mechanism and blow molding mechanism.Coupling can be flexibly adjusted position between each mechanism by slide rail and sliding plate, so that equipment can be folded when not being used, and land area is greatly saved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 for the overall structure of the utility model Figure 1 ;

[0021] Figure 2 for the overall structure of the utility model Figure 2 ;

[0022] Figure 3 for the overall structure of the utility model Figure 1 ;

[0023] Figure 4 for the overall structure of the utility model Figure 2 ;

[0024] Figure 5 for the overall structure of the utility model Figure 1 ;

[0025] Figure 6 for the overall structure of the utility model Figure 2 ;

[0026] Figure 7 for the overall structure of the utility model

[0027] Figure 8 for the overall structure of the utility model

[0028] Figure 9 for the overall structure of the utility model

[0029] Legend:

[0030] 1, winding mechanism; 2, guide mechanism; 3, main body mechanism; 4, blowing mechanism; 101, first sliding plate; 102, support frame; 103, first fixed knob; 104, second sliding plate; 105, second fixed knob; 106, first sliding rail; 107, bottom plate; 108, third fixed knob; 109, third sliding plate; 110, first guide roller; 111, winding motor; 112, vertical plate; 113, winding roller; 201, fourth sliding plate; 202, guide plate; 203, fourth fixed knob; 204, second guide roller; 301, traction device; 302, third guide roller; 303, support plate; 304, second sliding rail; 305, rolling type herringbone plate; 306, guardrail; 307, ladder; 308, support frame; 401, feeding device; 402, single screw extruder; 403, air ring; 404, fan; 405, die. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0032] Referring to Figure 1 - Figure 4 An embodiment provided by the present application:

[0033] A kind of express bag blowing film unit, including main body mechanism 3, the middle position of the front of main body mechanism 3 is provided with guide mechanism 2, the lower end of the front of main body mechanism 3 is provided with winding mechanism 1, the bottom of main body mechanism 3 is provided with blowing mechanism 4.

[0034] Specifically, by being provided with main body mechanism 3, user can realize the function that the machine set is pulled and guided after blowing film to express bag when using, by being provided with guide mechanism 2, it is convenient to guide the direction of plastic film after blowing film, by being provided with winding mechanism 1, it is convenient to realize the function that the plastic film generated is wound when the device is used, by being provided with blowing mechanism 4, it is convenient to realize the blowing function of express bag when the device is used.

[0035] Referring to Figure 5 - Figure 9The winding mechanism 1 comprises two first sliding plates 101, one side of each of the two first sliding plates 101 is fixedly provided with a support frame 102, the upper end of each of the two support frames 102 is fixedly provided with a first sliding rail 106, a third sliding plate 109 is slidingly arranged between the two support frames 102, the upper and lower ends of each of the two first sliding plates 101 are threadedly provided with a first fixed knob 103, one end of each of the two support frames 102 is threadedly provided with two third fixed knobs 108, the surface of each of the two first sliding rails 106 is slidingly provided with a second sliding plate 104, the bottom end of one side of each of the two second sliding plates 104 is threadedly provided with two second fixed knobs 105, the upper surface of the third sliding plate 109 is fixedly provided with a bottom plate 107, one side of the bottom plate 107 is fixedly provided with a vertical plate 112, one side of the vertical plate 112 is fixedly provided with a winding motor 111, the output end of the winding motor 111 is fixedly provided with a winding roller 113, and the other side of the vertical plate 112 is rotatably provided with a first guide roller 110.

[0036] Specifically, by arranging the first sliding plate 101 and the first fixed knob 103, the user can adjust the position of the winding mechanism 1 during use, by arranging the second sliding plate 104 and the second fixed knob 105, two groups of guide rollers are arranged between the two second sliding plates 104, and the user can adjust the position of the two groups of guide rollers, by arranging the third sliding plate 109 and the third fixed knob 108, the user can adjust the position of the winding motor 111 and the winding roller 113, during use, the two are unfolded, during non-use, the two are folded, thereby saving the floor area, by arranging the first guide roller 110, the express bag can be guided during winding, thereby ensuring the winding quality, by arranging the bottom plate 107, the support frame 102 and the vertical plate 112, the entire winding mechanism 1 can be supported, by arranging the winding motor 111 and the winding roller 113, the winding function of the device during use can be realized.

[0037] The guide mechanism 2 comprises two fourth sliding plates 201, the surface of each of the two fourth sliding plates 201 is threadedly provided with two fourth fixed knobs 203, one side of each of the two fourth sliding plates 201 is fixedly provided with a guide plate 202, and the second guide roller 204 is rotatably arranged between the two guide plates 202.

[0038] Specifically, by arranging the fourth sliding plate 201 and the fourth fixed knob 203, the user can adjust the position of the guide mechanism 2 as a whole by adjusting the position of the fourth sliding plate 201 on the surface of the main body mechanism 3 during use, so as to adjust the distance between the guide mechanism 2 and the winding mechanism 1 and the main body mechanism 3, thereby adjusting the guide direction and position, by arranging the guide plate 202 and the second guide roller 204, the basic guide function of the device during use can be realized.

[0039] The main body mechanism 3 comprises a support frame 308, a support plate 303 is fixedly arranged at the upper end of the support frame 308, a protective fence 306 is fixedly arranged around the upper surface of the support plate 303, a ladder 307 is fixedly arranged on one side of the support plate 303, a traction device 301 is fixedly arranged on the upper surface of the support plate 303, a rolling type herringbone plate 305 is hingedly arranged at the lower end of the traction device 301, a third guide roller 302 is rotatably arranged on one side of the traction device 301, and two second sliding rails 304 are fixedly arranged on one side of the support frame 308.

[0040] Specifically, the support frame 308 is arranged, in combination with the support plate 303, to provide support for placing and using the whole unit, the protective fence 306 is arranged, in combination with the ladder 307, to facilitate users to climb to the surface of the main body mechanism 3 to operate, the safety of the users is ensured by the protective fence 306, the traction device 301 is arranged, in combination with the rolling type herringbone plate 305, to facilitate extruding and traction of the extruded film bubble to form a plastic film, the third guide roller 302 is arranged to guide the traction direction of the plastic film when in use to make it enter the subsequent processing process, and the two second sliding rails 304 are arranged, the first sliding plate 101 and the fourth sliding plate 201 are slidably arranged on the surface of the second sliding rails 304, and the positions of the guide mechanism 2 and the winding mechanism 1 can be adjusted by the users when in use, thereby improving the convenience of the whole device when in use.

[0041] The blow molding mechanism 4 comprises a single screw extruder 402, the upper end of the single screw extruder 402 is fixedly provided with a feeding device 401, the output end of the single screw extruder 402 is fixedly provided with a die head 405, the upper end of the die head 405 is fixedly provided with an air ring 403, and the air ring 403 is fixedly connected with a fan 404 on one side.

[0042] Specifically, the single screw extruder 402 is arranged, in combination with the feeding device 401 and the die head 405, to enable the users to put the material to be extruded into the feeding device 401 when in use, the material is extruded by the single screw extruder 402, the material is cooled by the air ring 403 in combination with the fan 404, and the extruded material enters the traction device 301 through the rolling type herringbone plate 305, thereby realizing the extrusion molding function of the device when in use.

[0043] Working principle: when the device is used, the plastic raw material is sent into the single screw extruder 402 through the feeding equipment 401, the raw material is melted into uniform melt through heating and shearing in the single screw extruder 402, the melt is extruded through the die head 405, the extruded parison is cooled through the air ring 403, the cold air blown by the air ring 403 rapidly reduces the temperature of the parison, so that the parison is preliminarily shaped, the cooled parison enters the traction equipment 301, is tractioned and extruded through the rolling herringbone plate 305, so that the parison forms the plastic film, the plastic film is guided through the third guide roller 302 and the second guide roller 204, so that the plastic film is kept flat during the winding process, the running direction of the plastic film is adjusted, and the plastic film is prevented from deviating, finally, the plastic film enters the winding roller 113 through the first guide roller 110, the winding roller 113 is driven to wind through the winding motor 111, and the production of the express bag film is completed.

[0044] Finally, it should be pointed out that: the above only preferred embodiments of the present application, and not for limiting the present application, although the present application is described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the scope of protection of the present application.

Claims

1. A blown film extrusion unit for express delivery bags, comprising a main body (3), characterized in that: The main body (3) has a guide mechanism (2) in the middle of its front side, a winding mechanism (1) at the lower end of its front side, and a blow molding mechanism (4) at the bottom of its main body (3). The winding mechanism (1) includes two first sliding plates (101), each of the two first sliding plates (101) is fixedly provided with a support frame (102) on one side, each of the two support frames (102) is fixedly provided with a first slide rail (106) at the upper end, a third sliding plate (109) is slidably provided between the two support frames (102), each of the two first sliding plates (101) is threaded with a first fixing knob (103) at both the upper and lower ends, and each of the two support frames (102) is threaded with two third fixing knobs (108) at one end.

2. The blown film extrusion unit for express delivery bags according to claim 1, characterized in that: The surfaces of the two first slide rails (106) are slidably provided with second slide plates (104), and the bottom ends of the two second slide plates (104) are threaded with two second fixing knobs (105). The upper surface of the third slide plate (109) is fixedly provided with a base plate (107), and a vertical plate (112) is fixedly provided on one side of the base plate (107).

3. The blown film extrusion unit for express delivery bags according to claim 2, characterized in that: A winding motor (111) is fixedly installed on one side of the upright plate (112), and a winding roller (113) is fixedly installed at the output end of the winding motor (111). A first guide roller (110) is rotatably installed on the other side of the upright plate (112).

4. The blown film extrusion unit for express delivery bags according to claim 1, characterized in that: The guiding mechanism (2) includes two fourth sliding plates (201), each of which has two fourth fixed knobs (203) threaded on its surface. A guide plate (202) is fixedly provided on one side of each of the two fourth sliding plates (201), and a second guide roller (204) is rotatably provided between the two guide plates (202).

5. The blown film extrusion unit for express delivery bags according to claim 1, characterized in that: The main structure (3) includes a support frame (308), a support plate (303) is fixedly installed on the upper end of the support frame (308), a guardrail (306) is fixedly installed around the upper surface of the support plate (303), and a ladder (307) is fixedly installed on one side of the support plate (303).

6. The blown film extrusion unit for express delivery bags according to claim 5, characterized in that: A traction device (301) is fixedly installed on the upper surface of the support plate (303). A rolling herringbone plate (305) is hinged to the lower end of the traction device (301). A third guide roller (302) is rotatably installed on one side of the traction device (301). Two second slide rails (304) are fixedly installed on one side of the support frame (308).

7. The blown film extrusion unit for express delivery bags according to claim 1, characterized in that: The blow molding mechanism (4) includes a single screw extruder (402), a feeding device (401) is fixedly installed at the upper end of the single screw extruder (402), and a die head (405) is fixedly installed at the output end of the single screw extruder (402).

8. The blown film extrusion unit for express delivery bags according to claim 7, characterized in that: An air ring (403) is fixedly provided on the upper end of the mold head (405), and a fan (404) is fixedly connected to one side of the air ring (403).