Film blowing device for PE preservative film production
By setting a second mounting bracket and adjusting connecting rod in the blown film device, the problem of the inability to adjust the gap between the herringbone plate and the extrusion roller was solved, enabling flexible control of the film thickness and improving the quality of the finished product.
Patent Information
- Application Number
- CN202421518787.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-30
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-06-30
AI Technical Summary
In existing technology, the gap between the herringbone plate and the extrusion roller cannot be adjusted, which makes it impossible to guarantee the quality of finished products when producing cling film of different thicknesses.
A blown film device for PE preservation film production was designed. By setting a second mounting frame on the support, the top of the herringbone plate is movably connected to the horizontal support, and the angle and position of the herringbone plate are adjusted by the first and second connecting rods. The extrusion roller is fixed on the L-shaped plate, so that the gap can be flexibly adjusted.
It enables flexible adjustment of the gap between the herringbone plate and the extrusion roller according to production needs, ensuring the quality of finished products with different thicknesses of cling film.
Smart Images
Figure CN223532984U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of food preservation film production, and in particular to a blown film device for PE food preservation film production. Background Technology
[0002] Plastic wrap is a type of plastic packaging product. A common production method for plastic wrap is to blow film using a blown film machine. The blown film machine needs to heat and melt the raw material particles, blow them into a cylindrical shape through the blown film head, and then process them into a film shape through a herringbone plate and extrusion rollers. Finally, it is collected by a collecting roller. In the existing technology, the angle of the herringbone plate and the gap of the extrusion rollers cannot be adjusted, which makes it impossible to guarantee the quality of the finished product when producing plastic wrap of different thicknesses. Utility Model Content
[0003] To improve the operation of the aforementioned device, this utility model provides a blown film device for PE preservation film production, including a base, a feeding cylinder and a support on the base, a feeding hopper and a motor at one end of the feeding cylinder, and a blown film box at the other end, with a blown film head at the top of the blown film box; a first mounting frame and a second mounting frame are provided on the support, the first mounting frame is provided with a film-fixing ring, and the second mounting frame is movably provided with a herringbone plate and an extrusion roller.
[0004] Furthermore, the second mounting bracket includes a horizontal support and a vertical support.
[0005] Furthermore, two mounting slots are symmetrically arranged on the transverse support, and an L-shaped plate is movably connected to each mounting slot. An extrusion roller is rotatably connected to the top of the L-shaped plate.
[0006] Furthermore, the longitudinal support is provided with a first adjustment groove and a second adjustment groove. The top of the herringbone plate is rotatably connected to the L-shaped plate and is rotatably connected to a first connecting rod. One end of the first connecting rod is connected to the herringbone plate, and the other end is movably connected to the first adjustment groove. The bottom of the herringbone plate is rotatably connected to a second connecting rod. One end of the second connecting rod is connected to the herringbone plate, and the other end is movably connected to the first adjustment groove.
[0007] Furthermore, adjustment knobs are provided at the connection points between the first connecting rod, the second connecting rod, and the adjustment groove to fix the first connecting rod and the second connecting rod.
[0008] Furthermore, the blown film head, film fixing ring, herringbone plate, and extrusion roller are coaxially arranged.
[0009] In summary, this utility model has at least one of the following beneficial effects:
[0010] (1) The blown film device provided by this utility model is provided with a second mounting frame on the bracket. The top of the herringbone plate is movably mounted on the transverse support of the second mounting frame, and a first connecting rod and a second connecting rod are rotatably connected to both ends of the herringbone plate. At the same time, the other ends of the first connecting rod and the second connecting rod are rotatably mounted on the longitudinal support of the second mounting frame. This allows the top opening of the herringbone plate to be adjusted along the transverse support direction, and the bottom opening, after being fixed at the top, can also be adjusted by the second connecting rod, so that the angle of the herringbone plate can be changed according to production needs.
[0011] (2) By fixing the two ends of the extrusion roller to two L-shaped plates, the L-shaped plates are movably connected to the transverse support of the second mounting frame. At the same time, the top of the herringbone plate is rotatably connected to the L-shaped plate, so that the gap between the two extrusion rollers is related to the gap at the top of the herringbone plate. It is more convenient to adjust the herringbone plate and the extrusion roller according to the thickness of the produced plastic wrap. Attached Figure Description
[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0013] Figure 1 This is a schematic diagram of the structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the second mounting bracket and its movable structure;
[0015] Figure 3 This is a structural diagram of the second mounting bracket;
[0016] Figure 4 This is a structural diagram of an L-shaped plate.
[0017] In the diagram: 1. Base; 2. Feeding cylinder; 3. Support; 4. Feed hopper; 5. Motor; 6. Blown film box; 7. Blown film head; 8. First mounting bracket; 81. Film fixing ring; 9. Second mounting bracket; 91. Horizontal support; 911. Mounting groove; 912. L-shaped plate; 913. First mounting hole; 914. Second mounting hole; 915. Third mounting hole; 92. Vertical support; 921. First adjusting groove; 922. Second adjusting groove; 923. Adjusting knob; 10. Herringbone plate; 101. First connecting rod; 102. Second connecting rod; 11. Extrusion roller. Detailed Implementation
[0018] The following is in conjunction with the appendix Figure 1-3 The present invention will be described in further detail below.
[0019] like Figure 1As shown, this embodiment provides a blown film device for PE cling film production, including a base 1. The base 1 is equipped with a feeding cylinder 2 and a support 3. One end of the feeding cylinder has a feed hopper 4 and a motor 5, and the other end is connected to a blown film box 6. The feed hopper 4 can be equipped with a stirring / crushing device for preliminary processing of the input raw materials. After the raw materials enter the feeding cylinder 2 through the feed hopper 4, a heating device inside the feeding cylinder 2 heats and melts the raw materials. Driven by the motor 5, the spiral feeding rod of the feeding cylinder 2 rotates to transport the heated raw materials to the blown film box 6 for blown film shaping. The blown film box 6 and blown film head 7 in this embodiment are common structures, and the blown film head 7 can be replaced according to the thickness requirements of the cling film production.
[0020] The support frame 3 is equipped with a first mounting bracket 8 and a second mounting bracket 9. A film-fixing ring 81 is fixed to the first mounting bracket 8. The film-fixing ring 81 is horizontally positioned and its center is coaxial with the center of the blown film head 7. The first mounting bracket 8 consists of two parallel rectangular supports, and the film-fixing ring 81 is fixed to the first mounting bracket 8 with bolts. The diameter of the film-fixing ring 81 can be changed according to the required thickness of the cling film. It can be fixed to the first mounting bracket 8 using other auxiliary connectors.
[0021] like Figure 2-4 The second mounting bracket 9 consists of two T-shaped brackets. Each T-shaped bracket includes a horizontal support 91 and a vertical support 92. Each horizontal support 91 has two symmetrical mounting slots 911, and each vertical support 92 has a first adjustment slot 921 and a second adjustment slot 922.
[0022] Each horizontal support 91 is connected to two L-shaped plates 912, and a pressing roller 11 is rotatably connected to the top of the L-shaped plates 912 at corresponding positions on the two horizontal supports 91. The L-shaped plates 912 are provided with a first mounting hole 913, a second mounting hole 914, and a third mounting hole 915. The first mounting hole 913 is located at the top of the L-shaped plate 912 and is used to install the pressing roller 11. The second mounting hole 914 and the third mounting hole 915 are arranged parallel to each other at the bottom of the L-shaped plates 912 and cooperate with a mounting groove 911 on the horizontal support 91, so that the L-shaped plates 912 can move laterally within the mounting groove 911.
[0023] The herringbone plates 10 consist of two relatively inclined rectangular frames, each containing multiple auxiliary rods to guide the cylindrical film blown out by the blown film head 7 into a thin film shape. The top sides of either frame of the herringbone plates 10 are rotatably connected to the third mounting holes 915 of the corresponding L-shaped plates 912. Simultaneously, a first connecting rod 101 is rotatably connected to the top of either side. One end of the first connecting rod 101 is connected to the herringbone plate 10, and the other end is rotatably connected to the first adjusting groove 921 of the transverse support 91 on that side. Thus, there are two first connecting rods 101 on the same side of the top of the two herringbone plate frames, and the bottoms of the two first connecting rods 101 are connected to the same position in the first adjusting groove 921 and equipped with adjusting knobs 923. Since the movement of the L-shaped plates is restricted to the transverse support 91 direction, moving the adjusting knobs 923 up and down allows the two L-shaped plates on that side of the transverse support 91 to move relative to each other, thereby achieving synchronous adjustment of the gap between the top opening of the herringbone plate 10 and the extrusion roller 11.
[0024] Meanwhile, a second connecting rod 102 is rotatably connected to both sides of the bottom of any frame of the herringbone plate 10. The second connecting rod is rotatably connected to the second adjustment groove 922 of the corresponding side longitudinal bracket 92 in the same manner. By setting the adjustment knob 923, after the top of the herringbone plate 10 is fixed, the size of the bottom opening of the herringbone plate 10 can be changed by moving the adjustment knob 923 up and down.
[0025] After being squeezed by the extrusion roller 11, the PE film is deflected by the guide roller and collected by the collection roller.
[0026] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.
Claims
1. A blown film device for producing PE food preservation film, comprising a base (1), characterized in that: The base (1) is provided with a feeding cylinder (2) and a bracket (3). One end of the feeding cylinder is connected to a feeding hopper (4) and a motor (5), and the other end is connected to a blown film box (6). The top of the blown film box is provided with a blown film head (7). The bracket (3) is provided with a first mounting frame (8) and a second mounting frame (9). The first mounting frame (8) is provided with a film fixing ring (81), and the second mounting frame (9) is movably provided with a herringbone plate (10) and a pair of extrusion rollers (11).
2. The blown film device for producing PE food preservation film according to claim 1, characterized in that: The second mounting bracket (9) includes a transverse bracket (91) and a longitudinal bracket (92).
3. The blown film device for producing PE food preservation film according to claim 2, characterized in that: Two mounting slots (911) are symmetrically arranged on the transverse support (91), and an L-shaped plate (912) is movably connected to each mounting slot (911). An extrusion roller (11) is rotatably connected to the top of the L-shaped plate (912).
4. The blown film device for producing PE food preservation film according to claim 3, characterized in that: The longitudinal support (92) is provided with a first adjustment groove (921) and a second adjustment groove (922). The top of the herringbone plate (10) is rotatably connected to the L-shaped plate (912) and is rotatably connected to a first connecting rod (101). One end of the first connecting rod (101) is connected to the herringbone plate (10), and the other end is movably connected to the first adjustment groove (921). The bottom of the herringbone plate (10) is rotatably connected to a second connecting rod (102). One end of the second connecting rod (102) is connected to the herringbone plate (10), and the other end is movably connected to the second adjustment groove (922).
5. The blown film device for producing PE food preservation film according to claim 4, characterized in that: An adjustment knob (923) is provided at the connection between the first connecting rod (101), the second connecting rod (102) and the adjustment groove, for fixing the first connecting rod (101) and the second connecting rod (102).
6. The blown film device for producing PE food preservation film according to claim 1, characterized in that: The blown film head (7), film fixing ring (81), herringbone plate (10) and extrusion roller (11) are coaxially arranged.