Multi-layer co-extrusion blow molding equipment for packaging bag film

Abstract

The utility model belongs to the technical field of blow molding equipment, and particularly relates to packaging bag film multi-layer co-extrusion blow molding equipment which comprises a fixing plate, an external hose and a blow molding pipe, the external hose and the blow molding pipe are both connected to the fixing plate in a penetrating mode, the blow molding pipe is communicated with the end portion of the external hose, a hollow frame is fixedly installed on the surface of the fixing plate, and the hollow frame is fixedly installed on the surface of the fixing plate. The hollowed-out frame is located on the peripheries of the two blow molding pipes, through holes are formed in the surfaces of the upper end and the lower end of the hollowed-out frame, and the upper end and the lower end of the hollowed-out frame are connected with clamping and fixing parts; a through hole is formed in the blow molding pipe, a clamping and fixing part is arranged in the blow molding pipe, the clamping and fixing part comprises an inserting rod inserted in the inner wall of the through hole, and the lower end of the inserting rod is fixedly connected with a clamping and fixing plate, so that a multi-layer co-extrusion film can be more tightly attached to the blow molding pipe after being arranged on the periphery of the blow molding pipe, and better blow molding action is achieved; and a reset structure is matched in the process, so that the whole clamping force is better, and the whole clamping operation becomes simpler and more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of blow molding equipment, in particular to a packaging bag film multi-layer co-extrusion blow molding equipment. Background Art

[0002] Multi-layer co-extrusion of packaging bag film is an advanced film production process. It utilizes the difference in barrier properties of different plastic materials. Through multi-layer co-extrusion technology, multiple materials are extruded simultaneously in a molten state to form a film with a multi-layer structure. This film has excellent high barrier properties and can effectively block the penetration of substances such as oxygen, water, carbon dioxide and odor, thereby maintaining the quality of the packaging and extending the shelf life; and the final formation of the packaging bag is inseparable from the inflation process, at this time, the corresponding blow molding equipment is needed; the current packaging bag film multi-layer co-extrusion blow molding equipment on the market mostly uses the corresponding blowing pipe, and then the packaging bag film to be blown is sleeved on the periphery of the blow molding pipe and manually pressed tightly for blow molding; but this will increase the work intensity, thereby reducing the overall production efficiency. For this reason, we provide a packaging bag film multi-layer co-extrusion blow molding equipment. Utility Model Content

[0003] In order to solve the above problems, the utility model proposes a packaging bag film multi-layer co-extrusion blow molding device to more accurately solve the problems raised in the above background technology.

[0004] The utility model is realized by the following technical solutions:

[0005] The utility model proposes a packaging bag film multi-layer co-extrusion blow molding device, comprising a fixed plate, an external hose and a blow molding tube, the external hose and the blow molding tube are both connected to the fixed plate, and the blow molding tube is designed to be connected to the end of the external hose, a hollow frame is fixedly installed on the surface of the fixed plate, and the hollow frame is located outside the two blow molding tubes, the upper and lower end surfaces of the hollow frame are both provided with through holes, and the upper and lower ends of the hollow frame are both connected to clamping components;

[0006] The clamping component comprises a plug rod inserted into the inner wall of the through hole, the lower end of the plug rod is fixedly connected with a clamping plate, the opposite surfaces of the two clamping plates are provided with clamping arc grooves, and a reset structure is connected between the hollow frame and the clamping plate.

[0007] Furthermore, the reset structure includes a strip-shaped through groove opened on the end surface of the hollow frame, a vertical fixing rod is fixedly connected between the two end walls of the strip-shaped through groove, a spring is sleeved on the outer periphery of the vertical fixing rod, a movable sleeve block is slidably sleeved on the outer periphery of the vertical fixing rod, and the end of the movable sleeve block is fixedly connected to the end surface of the clamping plate.

[0008] Furthermore, an adsorption component is connected between the plug-in rod and the hollow frame;

[0009] The adsorption component comprises magnetic blocks embedded in the upper and lower end surfaces of the hollow frame and an iron lap plate fixedly connected to the upper end of the plug-in rod.

[0010] Furthermore, a button hole is provided on the upper end surface of the iron lap plate, and the iron lap plate is adsorbed and connected to the magnetic attraction block.

[0011] Furthermore, an anti-skid arc plate is fixedly connected to the inner wall of the fixing arc groove, and the anti-skid arc plate is buckled on the periphery of the blow molding tube.

[0012] Furthermore, one end of the spring is fixedly connected to the end wall of the strip-shaped through groove, and the other end of the spring is fixedly connected to the end surface of the moving sleeve block.

[0013] Beneficial effects of the utility model:

[0014] The utility model provides a clamping component so that the multi-layer co-extruded film can be more closely fitted to the periphery of the blow molding tube after being placed thereon, thereby achieving better blow molding action; in combination with a reset structure, the overall clamping force is better and the entire clamping operation becomes simpler.

[0015] The utility model arranges an adsorption component so that the iron overlap plate can be better fixed to the periphery of the hollow frame, which can increase a certain clamping force and avoid the detachment of the multi-layer co-extruded film during blow molding due to excessive force. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A first three-dimensional diagram of an embodiment of the utility model;

[0017] Figure 2 A second perspective view of an embodiment of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of an embodiment of the utility model after the clamping parts are detached;

[0019] Figure 4 This is a schematic structural diagram of a clamping component in one embodiment of the utility model;

[0020] Figure 5 This is an embodiment of the utility model Figure 2 A magnified view of the structure at center.

[0021] In the figure: 1. fixing plate; 2. external hose; 3. blow-molded tube; 4. hollow frame; 5. through hole; 6. clamping part; 61. plug-in rod; 62. clamping plate; 63. clamping arc groove; 7. strip through groove; 8. vertical fixing rod; 9. spring; 10. movable sleeve block; 11. anti-slip arc plate; 12. magnetic suction block; 13. iron overlap plate; 14. trigger hole. DETAILED DESCRIPTION

[0022] In order to more clearly and completely illustrate the technical solution of the present invention, the present invention is further described below in conjunction with the accompanying drawings.

[0023] Example

[0024] like Figure 1-Figure 5 As shown, a packaging bag film multilayer co-extrusion blow molding device proposed in an embodiment of the utility model comprises a fixed plate 1, an external hose 2 and a blow molding tube 3, the external hose 2 and the blow molding tube 3 are both connected to the fixed plate 1, and the blow molding tube 3 is designed to be connected to the end of the external hose 2, a hollow frame 4 is fixedly installed on the surface of the fixed plate 1, and the hollow frame 4 is located at the periphery of the two blow molding tubes 3, the upper and lower end surfaces of the hollow frame 4 are provided with through holes 5, and the upper and lower ends of the hollow frame 4 are connected with clamping parts 6; the clamping part 6 comprises a plug-in rod 61 inserted into the inner wall of the through hole 5, the lower end of the plug-in rod 61 is fixedly connected with a clamping plate 62, the opposite surfaces of the two clamping plates 62 are provided with a clamping arc groove 63, a reset structure is connected between the hollow frame 4 and the clamping plate 62, the inner wall of the clamping arc groove 63 is fixedly connected with an anti-slip arc plate 11, and the anti-slip arc plate 11 is buckled on the periphery of the blow molding tube 3.

[0025] Furthermore, the reset structure includes a strip-shaped through groove 7 opened on the end surface of the hollow frame 4, a vertical fixing rod 8 is fixedly connected between the two end walls of the strip-shaped through groove 7, a spring 9 is sleeved on the outer periphery of the vertical fixing rod 8, a movable sleeve block 10 is slidably sleeved on the outer periphery of the vertical fixing rod 8, and the end of the movable sleeve block 10 is fixedly connected to the end surface of the clamping plate 62, one end of the spring 9 is fixedly connected to the end wall of the strip-shaped through groove 7, and the other end of the spring 9 is fixedly connected to the end surface of the movable sleeve block 10.

[0026] Among them, by setting the strip-shaped through groove 7, the vertical fixing rod 8, the spring 9 and the movable sleeve block 10, the iron overlap plate 13 allows the clamping plate 62 to cooperate with the vertical fixing rod 8 and the movable sleeve block 10 and reset under the rebound force of the spring 9 when no force is applied, thereby achieving the ultimate clamping purpose.

[0027] Furthermore, an adsorption component is connected between the plug-in rod 61 and the hollow frame 4, a button hole 14 is opened on the upper end surface of the iron lap plate 13, and the iron lap plate 13 is adsorbed and connected with the magnetic block 12. The adsorption component includes a magnetic block 12 embedded in the upper and lower end surfaces of the hollow frame 4 and an iron lap plate 13 fixedly connected to the upper end of the plug-in rod 61.

[0028] Among them, by setting the magnetic block 12, the iron lap plate 13 and the trigger hole 14, the design of the magnetic block 12 can allow the iron lap plate 13 to obtain a certain suction force, thereby preventing the multi-layer co-extruded film from easily detaching in the later stage, and the opening of the trigger hole 14 makes it convenient for the user to apply force to the iron lap plate 13 to achieve better operating requirements.

[0029] The working principle of the utility model is as follows: when the whole packaging bag film multi-layer co-extrusion blow molding equipment is in use, firstly, the iron lap plate 13 is pulled through the trigger hole 14, so that the iron lap plate 13 is separated from the adsorption of the magnetic suction block 12, and in this process, the movable sleeve block 10 is squeezed against the spring 9; then, the multi-layer co-extruded film to be blown is placed on the periphery of the blow molding tube 3 and the force on the iron lap plate 13 is released, and the iron lap plate 13 is reset at this time, so that the two clamping plates 62 arranged above and below clamp the multi-layer co-extruded film, so that it fits tightly with the periphery of the blow molding tube 3, and finally, the corresponding blow molding can be carried out through the external hose 2; after the blow molding is completed, the iron lap plate 13 is pulled again through the trigger hole 14 to separate the blown multi-layer co-extruded film.

[0030] Finally, it should be noted that the basic concepts have been described above. Obviously, for those skilled in the art, the above detailed disclosure is only an example and does not constitute a limitation of this specification. Although it is not explicitly stated here, those skilled in the art may make various modifications, improvements and corrections to this specification. Such modifications, improvements and corrections are suggested in this specification, so such modifications, improvements and corrections still belong to the spirit and scope of the exemplary embodiments of this specification. At the same time, this specification uses specific words to describe the embodiments of this specification. For example, "one embodiment", "one embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of this specification. Therefore, it should be emphasized and noted that "one embodiment" or "one embodiment" or "an alternative embodiment" mentioned twice or more in different positions in this specification does not necessarily refer to the same embodiment. In addition, certain features, structures or characteristics in one or more embodiments of this specification can be appropriately combined. In addition, unless explicitly stated in the claims, the order of processing elements and sequences described in this specification, the use of alphanumeric characters, or the use of other names are not used to limit the order of the processes and methods of this specification.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A packaging bag film multilayer co-extrusion blow molding device, comprising a fixed plate (1), an external hose (2) and a blow molding tube (3), wherein the external hose (2) and the blow molding tube (3) are both connected to the fixed plate (1), and the blow molding tube (3) is designed to communicate with the end of the external hose (2), characterized in that: A hollow frame (4) is fixedly mounted on the surface of the fixed plate (1), and the hollow frame (4) is located outside the two blow molding tubes (3). Through holes (5) are provided on the upper and lower end surfaces of the hollow frame (4), and clamping components (6) are connected to the upper and lower ends of the hollow frame (4); The clamping component (6) comprises an insertion rod (61) inserted into the inner wall of the through hole (5); the lower end of the insertion rod (61) is fixedly connected to a clamping plate (62); the opposing surfaces of the two clamping plates (62) are provided with a clamping arc groove (63); and a reset structure is connected between the hollow frame (4) and the clamping plate (62).

2. The packaging bag film multi-layer co-extrusion blow molding equipment according to claim 1, characterized in that: The reset structure comprises a strip-shaped through groove (7) provided on the end surface of the hollow frame (4); a vertical fixing rod (8) is fixedly connected between the two end walls of the strip-shaped through groove (7); a spring (9) is sleeved on the periphery of the vertical fixing rod (8); a movable sleeve block (10) is slidably sleeved on the periphery of the vertical fixing rod (8); and the end of the movable sleeve block (10) is fixedly connected to the end surface of the clamping plate (62).

3. The packaging bag film multi-layer co-extrusion blow molding equipment according to claim 1, characterized in that: An adsorption component is connected between the plug-in rod (61) and the hollow frame (4); The adsorption assembly comprises a magnetic attraction block (12) embedded in the upper and lower end surfaces of the hollow frame (4) and an iron lap plate (13) fixedly connected to the upper end of the plug-in rod (61).

4. The packaging bag film multi-layer co-extrusion blow molding equipment according to claim 3, characterized in that: A locking hole (14) is provided on the upper end surface of the iron lap plate (13), and the iron lap plate (13) is adsorbed and connected to the magnetic attraction block (12).

5. The packaging bag film multi-layer co-extrusion blow molding equipment according to claim 1, characterized in that: The inner wall of the fixing arc groove (63) is fixedly connected with an anti-skid arc plate (11), and the anti-skid arc plate (11) is buckled on the periphery of the blow molding tube (3).

6. The packaging bag film multi-layer co-extrusion blow molding equipment according to claim 2, characterized in that: One end of the spring (9) is fixedly connected to the end wall of the strip-shaped through groove (7), and the other end of the spring (9) is fixedly connected to the end surface of the moving sleeve block (10).

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