A post-blow guide mechanism for heat shrinkable film

Abstract

The utility model discloses a post-blow film guiding mechanism for heat shrinkable film, wherein an upper slide groove is provided on the lower surface of an upper connecting rod, and a lower slide groove is provided on the upper surface of a lower connecting rod, a left guide frame and a right guide frame are obliquely and symmetrically arranged between the upper connecting rod and the lower connecting rod, the left guide frame and the right guide frame are respectively connected to the upper connecting rod and the lower connecting rod through an upper sliding block and a lower sliding block, and are tightly fixed in position through an upper screw knob and a lower screw knob. The utility model has a reasonable structure, and the positions of the left guide frame and the right guide frame can be quickly adjusted according to the position of a die head of a film blowing machine, and the positioning requirements of the stand are greatly reduced, which is convenient for installation. At the same time, the stability can be guaranteed through the connection mode of the slider and the slide groove, and the distance between the left guide frame and the right guide frame can be adjusted according to films of different thicknesses, and the scope of application is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of post-blow guiding of heat shrinkable films, in particular to a post-blow guiding mechanism for heat shrinkable films. Background Art

[0002] Heat shrink film is used for the sale and transportation of various products. Its main function is to stabilize, cover and protect the products. The shrink film must have high puncture resistance, good shrinkage and certain shrinkage stress.

[0003] When heat shrink film is produced, it is blown by a film blowing machine. A conical guide mechanism is generally installed above the die head of the film blowing machine. After the film is blown out from the die head, the film is squeezed into a double-layer film through the guide mechanism and guided from the top. The traditional guide mechanism has a fixed guide frame. Therefore, when installing, the installation position of the stand needs to be relatively accurate to ensure that the film can pass through the guide mechanism smoothly. Therefore, the installation accuracy is required to be high. At the same time, the distance between the two guide frames of the traditional guide mechanism is difficult to adjust or even impossible to adjust, resulting in a reduced scope of application. Therefore, an improved technology is urgently needed to solve this problem existing in the prior art. Utility Model Content

[0004] The purpose of the utility model is to provide a post-blown film guide mechanism for a heat shrinkable film, which can quickly adjust the positions of the left guide frame and the right guide frame according to the position of the die head of the film blowing machine, greatly reduce the positioning requirements of the vertical frame, and facilitate installation. At the same time, through the connection method of the slider and the slide groove, stability can be guaranteed, and the distance between the left guide frame and the right guide frame can be adjusted according to the different thicknesses of the film, and the scope of application is greatly improved to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a post-blow film guide mechanism for a heat shrink film, comprising an upper connecting rod, a lower connecting rod, a left guide frame and a right guide frame, wherein the upper connecting rod has two and is arranged in parallel, the lower connecting rod has two and is arranged in parallel, an upper slide groove is provided on the lower surface of the upper connecting rod, a lower slide groove is provided on the upper surface of the lower connecting rod, the left guide frame and the right guide frame are obliquely and symmetrically arranged between the upper connecting rod and the lower connecting rod, the upper connecting rod has an upper guide groove provided along the length direction, the upper guide groove is connected to the upper slide groove, the upper connecting rod has a lower guide groove provided along the length direction, and the lower guide groove is connected to the lower slide groove;

[0006] The left guide frame and the right guide frame have the same structure and are both composed of side plates, an upper cross bar, a lower cross bar and rollers. There are two side plates and are arranged in parallel, the top of the side plate is connected to the lower surface of the upper cross bar, the bottom of the side plate is connected to the upper surface of the lower cross bar, and a number of rollers are evenly arranged between the two side plates. Upper sliding blocks are provided at both ends of the upper surface of the upper cross bar, and the upper sliding block is slidably set in the upper sliding groove of the upper connecting rod, the top of the upper sliding block cooperates with the upper end screw knob, and the screw portion of the upper end screw knob is slidably set in the upper guide groove of the upper connecting rod, and lower sliding blocks are provided at both ends of the lower surface of the lower cross bar, and the lower sliding block is slidably set in the lower sliding groove of the lower connecting rod, the bottom of the lower sliding block cooperates with the lower end screw knob, and the screw portion of the lower end screw knob is slidably set in the lower guide groove of the lower connecting rod.

[0007] Preferably, the utility model provides a post-blown heat shrink film guiding mechanism, wherein the distance between the left guide frame and the right guide frame gradually decreases from bottom to top.

[0008] Preferably, the utility model provides a post-blown heat shrink film guiding mechanism, wherein the upper slide groove and the lower slide groove are both T-shaped grooves, and the cross-sections of the upper slide block and the lower slide block are matched with the upper slide groove and the lower slide groove respectively.

[0009] Preferably, the utility model provides a post-blown heat shrink film guiding mechanism, wherein both ends of the upper connecting rod and the lower connecting rod are respectively connected to the stand.

[0010] Preferably, the utility model provides a post-blown heat shrink film guiding mechanism, wherein both ends of the upper connecting rod and the lower connecting rod are respectively connected to the stand.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] Upper connecting rods and lower connecting rods are respectively arranged on both sides of the upper part and the lower part of the vertical frame, and upper and lower connecting rods are respectively provided with upper and lower sliding grooves. The left guide frame and the right guide frame are slidingly connected to the upper and lower connecting rods through the upper slider and the lower slider respectively, and are fastened and positioned by the upper screw knob and the lower screw knob. On the one hand, the positions of the left guide frame and the right guide frame can be quickly adjusted according to the position of the die head of the film blowing machine, and the positioning requirements for the vertical frame are greatly reduced, which is convenient for installation. At the same time, the connection method of the slider and the sliding groove can also ensure stability. On the other hand, the distance between the left guide frame and the right guide frame can be adjusted according to films of different thicknesses, and the scope of application is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a side view of the structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the front view structure of the utility model;

[0015] Figure 3 Schematic diagram of the right guide frame structure (the structure of the left guide frame is the same as that of the right guide frame);

[0016] Figure 4 This is a schematic diagram of the upper connecting rod structure when viewed from above;

[0017] Figure 5 It is a schematic diagram of the structure of the lower connecting rod from a top view;

[0018] Figure 6 It is a schematic diagram of the working state of the utility model.

[0019] In the figure: upper connecting rod 1, lower connecting rod 2, left guide frame 3, right guide frame 4, upper slide 5, lower slide 6, upper guide groove 7, lower guide groove 8, side plate 9, upper cross bar 10, lower cross bar 11, roller 12, upper slider 13, upper end screw knob 14, lower slider 15, lower end screw knob 16, and stand 17. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model;

[0021] It should be noted that, in the description of the present invention, the terms "inside", "outside", "upper", "lower", "both sides", "one end", "the other end", "left" and "right" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0022] See also Figure 1-5The utility model provides a technical solution: a post-blow film guiding mechanism for a heat shrinkable film, comprising an upper connecting rod 1, a lower connecting rod 2, a left guide frame 3 and a right guide frame 4, wherein the upper connecting rod 1 has two and are arranged in parallel, and the lower connecting rod 2 has two and are arranged in parallel, and the two ends of the upper connecting rod 1 and the lower connecting rod 2 are respectively connected to the vertical frame 17 to achieve overall support and lifting, an upper slide groove 5 is opened on the lower surface of the upper connecting rod 1, and a lower slide groove 6 is opened on the upper surface of the lower connecting rod 2, the left guide frame 3 and the right guide frame 4 are obliquely and symmetrically arranged between the upper connecting rod 1 and the lower connecting rod 2, and the distance between the left guide frame 3 and the right guide frame 4 gradually decreases from bottom to top, so that the film blown by the film blowing machine can gradually change from round to flat, the upper connecting rod 1 is provided with an upper guide groove 7 along the length direction, and the upper guide groove 7 is connected to the upper slide groove 5, and the upper connecting rod 1 is provided with a lower guide groove 8 along the length direction, and the lower guide groove 8 is connected to the lower slide groove 6;

[0023] The left guide frame 3 and the right guide frame 4 have the same structure and are both composed of a side plate 9, an upper cross bar 10, a lower cross bar 11 and a roller 12. There are two side plates 9 and they are arranged in parallel. The top of the side plate 9 is connected to the lower surface of the upper cross bar 10, and the bottom of the side plate 9 is connected to the upper surface of the lower cross bar 11. A number of rollers 12 are evenly arranged between the two side plates 9. Upper sliders 13 are arranged at both ends of the upper surface of the upper cross bar 10. The upper slider 13 is slidably arranged in the upper slide groove 5 of the upper connecting rod 1. The top of the upper slider 13 cooperates with the upper end screw knob 14, and the screw portion of the upper end screw knob 14 is slidably arranged in the upper guide groove 7 of the upper connecting rod 1. Lower sliders 15 are arranged at both ends of the lower surface of the lower cross bar 11. 15 is slidably arranged in the lower slide groove 6 of the lower connecting rod 2, and the upper slide groove 5 and the lower slide groove 6 are both T-shaped grooves. The cross-sections of the upper slider 13 and the lower slider 15 are matched with the upper slide groove 5 and the lower slide groove 6 respectively. The T-shaped groove is adopted to ensure the stability of the left guide frame 3 and the right guide frame 4 during sliding and after tightening. The bottom of the lower slider 15 cooperates with the lower end screw knob 16, and the screw part of the lower end screw knob 16 is slidably arranged in the lower guide groove 8 of the lower connecting rod 2. The upper surface of the upper slider 13 and the lower surface of the lower slider 15 are both provided with screw holes and are matched with the upper end screw knob 14 and the lower end screw knob 16 through the screw holes respectively to realize the installation of the upper end screw knob 14 and the lower end screw knob 16.

[0024] Installation method and use principle: First, slide the upper ends of the left guide frame 3 and the right guide frame 4 with the upper connecting rod 1 and the lower connecting rod 2 through the upper slider 13 and the lower slider 15, then pass the upper screw knob 14 through the upper guide groove 7 of the upper connecting rod 1 and threadedly connect it with the upper slider 13, pass the lower screw knob 16 through the lower guide groove 8 of the lower connecting rod 2 and threadedly connect it with the lower slider 15, and finally connect the ends of the upper connecting rod 1 and the lower connecting rod 2 with the stand 17 through bolts. Before use, install the whole above the die head of the film blowing machine through the stand 17, then loosen the upper screw knob 14 and the lower screw knob 16, adjust the position of the left guide frame 3 and the right guide frame 4, and after determining the position, tighten each upper screw knob 14 and the lower screw knob 16 to fix the left guide frame 3 and the right guide frame 4. The film blown by the film blowing machine passes between the left guide frame 3 and the right guide frame 4 and is guided by the rollers 12 in sequence, and finally turns and leads out from the top roller 12, such as Figure 6 When the distance or position of the left guide frame 3 and the right guide frame 4 needs to be adjusted, first loosen the upper screw knob 14 and the lower screw knob 16, and then tighten the upper screw knob 14 and the lower screw knob 16 after determining the position. The utility model has a reasonable structure. Upper connecting rods 1 and lower connecting rods 2 are respectively arranged on both sides of the upper part and the lower part of the vertical frame 17. The upper connecting rod 1 and the lower connecting rod 2 are respectively provided with upper slide grooves 5 and lower slide grooves 6. The left guide frame 3 and the right guide frame 4 are respectively slidably connected with the upper connecting rod 1 and the lower connecting rod 2 through the upper slider 13 and the lower slider 15, and are tightly fixed in position through the upper end screw knob 14 and the lower end screw knob 16. On the one hand, the positions of the left guide frame 3 and the right guide frame 4 can be quickly adjusted according to the position of the die head of the film blowing machine, and the positioning requirements of the vertical frame 17 are greatly reduced, which is convenient for installation. At the same time, the stability can be guaranteed by the connection method of the slider and the slide groove. On the other hand, the distance between the left guide frame 3 and the right guide frame 4 can be adjusted according to films of different thicknesses, and the scope of application is greatly improved.

[0025] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

[0026] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified and replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A post-blow guide mechanism for heat shrinkable film, characterized in that: The invention comprises an upper connecting rod (1), a lower connecting rod (2), a left guide frame (3) and a right guide frame (4), wherein the upper connecting rod (1) has two and is arranged in parallel, the lower connecting rod (2) has two and is arranged in parallel, the lower surface of the upper connecting rod (1) is provided with an upper slide groove (5), the upper surface of the lower connecting rod (2) is provided with a lower slide groove (6), the left guide frame (3) and the right guide frame (4) are obliquely and symmetrically arranged between the upper connecting rod (1) and the lower connecting rod (2), the upper connecting rod (1) has an upper guide groove (7) along the length direction, the upper guide groove (7) and the upper slide groove (5) are connected to each other, the upper connecting rod (1) has a lower guide groove (8) along the length direction, the lower guide groove (8) and the lower slide groove (6) are connected to each other; The left guide frame (3) and the right guide frame (4) have the same structure and are both composed of a side plate (9), an upper cross bar (10), a lower cross bar (11) and a roller (12). There are two side plates (9) arranged in parallel. The top end of the side plate (9) is connected to the lower surface of the upper cross bar (10), and the bottom end of the side plate (9) is connected to the upper surface of the lower cross bar (11). A plurality of rollers (12) are evenly arranged between the two side plates (9). Upper sliders (13) are arranged at both ends of the upper surface of the upper cross bar (10). The upper sliders (13) are slidably arranged on the upper connecting rod (1). The top of the upper slider (13) cooperates with the upper screw knob (14), and the screw portion of the upper screw knob (14) is slidably arranged in the upper guide groove (7) of the upper connecting rod (1). The two ends of the lower surface of the lower cross bar (11) are provided with lower sliders (15), and the lower slider (15) is slidably arranged in the lower slide groove (6) of the lower connecting rod (2). The bottom of the lower slider (15) cooperates with the lower screw knob (16), and the screw portion of the lower screw knob (16) is slidably arranged in the lower guide groove (8) of the lower connecting rod (2).

2. A post-blow heat shrink film guiding mechanism according to claim 1, characterized in that: The distance between the left guide frame (3) and the right guide frame (4) gradually decreases from bottom to top.

3. The post-blown heat shrink film guiding mechanism according to claim 1, characterized in that: The upper slide groove (5) and the lower slide groove (6) are both T-shaped grooves, and the cross-sections of the upper slide block (13) and the lower slide block (15) are matched with the upper slide groove (5) and the lower slide groove (6) respectively.

4. The post-blown heat shrink film guiding mechanism according to claim 1, characterized in that: The two ends of the upper connecting rod (1) and the lower connecting rod (2) are respectively connected to the stand (17).

5. The post-blown heat shrink film guiding mechanism according to claim 1, characterized in that: The upper surface of the upper slider (13) and the lower surface of the lower slider (15) are both provided with screw holes and are respectively matched with the upper screw knob (14) and the lower screw knob (16) through the screw holes.

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