Cast film forming machine for PS film production

Abstract

The utility model discloses a cast film forming machine for PS film production, and particularly relates to the technical field of cast film forming machines, the cast film forming machine comprises a forming machine main body, the forming machine main body is provided with an extruder, a casting mechanism, a cooling roller and a wind-up roller, the extruder is fixed at the top of the forming machine main body, the casting mechanism comprises a support, and the cooling roller is fixed on the support. A frame is arranged in the support, a plurality of openings are formed in the front end of the frame, and a sliding plate is arranged in each opening in a sliding mode. PS plastic particles are conveyed into the casting machine head from the feeding opening through the extruder, uniform sheet-shaped melt is formed through the casting machine head and is wound on the winding roller after being cooled through the cooling roller, so that a PS film can be automatically produced, the casting machine head and the extruder are connected through the connecting assembly, rapid replacement is facilitated, and the production efficiency is improved. Meanwhile, the bracket is supported by the moving assembly, so that a worker can directly replace the casting machine head on the bracket, and the replacement efficiency and the production efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of cast film forming machines, and more specifically to a cast film forming machine for PS film production. Background Technology

[0002] PS film is a type of cast film, made primarily of polystyrene. PS film boasts high transparency and gloss, resulting in an aesthetically pleasing appearance that effectively showcases packaged items, giving it a significant advantage in the packaging industry. It is also suitable for electronic paper protective films where high transparency is required. Furthermore, PS film is relatively easy to process, capable of being manufactured through various processes such as casting, extrusion, and blow molding. It can also be sealed using solvents or adhesives in addition to heat sealing.

[0003] Currently, PS film is generally produced using a casting machine. Plastic granules are fed into the casting machine's inlet and conveyed to the cylinder by a rotating screw. Under heating and screw shearing action, the plastic granules gradually melt and plasticize into a uniform melt. The melt is extruded into the casting die head, uniformly extruded into a thin sheet through the die slit, and then rapidly cooled and solidified on the surface of the cooling rollers to form a cast film. This film is then pulled and stretched to a suitable size by the traction rollers, and finally wound into a roll by the winding device. For example, there is a multi-layer co-extrusion casting machine with prior art publication number CN220242476U.

[0004] However, the existing technology has the following problems when used: Since different customers require different PS film thicknesses, the traditional solution is for workers to manually remove the casting head and then replace it with a casting head that meets the requirements before use. Since the casting head is heavy, manual installation not only has large errors, but also requires the assistance of tools, which seriously affects the production efficiency of PS film. Utility Model Content

[0005] To overcome the aforementioned deficiencies of the prior art, this utility model provides a casting film forming machine for PS film production. PS plastic granules are fed from the feed inlet into the casting die head via an extruder. The casting die head forms a uniform sheet-like melt, which is then cooled by a cooling roller and wound onto a take-up roller. This allows for the automatic production of PS film. The casting die head is connected to the extruder via a connecting component for easy and quick replacement. A movable component support bracket allows operators to directly replace the casting die head on the bracket, thereby improving replacement and production efficiency and solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a casting film forming machine for PS film production, comprising a forming machine body, an extruder, a casting mechanism, a cooling roller, and a winding roller on the forming machine body, the extruder being fixed to the top of the forming machine body, the casting mechanism including a support, a frame inside the support, multiple openings at the front end of the frame, a sliding plate slidably disposed in each opening, a casting head for making PS film being detachably connected to the top of the sliding plate, a feed pipe being fixedly disposed on the side of the casting head near the extruder, the feed pipe being connected to the extruder via a connecting component, and the support being mounted on the forming machine body via a moving component.

[0007] In a preferred embodiment, a linear module is fixedly provided on the inner wall of the bracket, the linear module is detachably connected to the frame, and the bracket is installed on the main body of the molding machine via a movable component.

[0008] In a preferred embodiment, the connecting assembly includes two arc-shaped plates sleeved on the feed tube. Each of the two arc-shaped plates is fixedly provided with an electric push rod one on the side away from the casting head. A vertical plate is fixedly provided on the outer wall of the electric push rod one. The vertical plate is connected to the main body of the forming machine through an electric push rod two. The position of the arc-shaped plates can be automatically adjusted by the electric push rod one and the electric push rod two, thereby improving the efficiency of changing the casting head.

[0009] In a preferred embodiment, the front and rear sides of the top of the molding machine body are machined with limiting grooves that are adapted to the vertical plate. The vertical plate is slidably disposed in the limiting grooves. When the vertical plate moves, it is limited by the limiting grooves, so as to move stably.

[0010] In a preferred embodiment, the movable component includes a second linear module that is detachably mounted on the main body of the molding machine, and the top end of the second linear module is connected to the bottom end of the support. Using the second linear module, the position of the support can be automatically adjusted without manual operation, which can reduce the errors and risks caused by manual operation.

[0011] In a preferred embodiment, the bracket has an electromagnetic lock, the same number as the number of slide plates, fixedly inserted on the side away from the extruder. Each slide plate has a locking groove machined on the surface near the electromagnetic lock. The electromagnetic lock is locked to the locking groove to fix the slide plate and prevent the slide plate from shaking and affecting the normal use of the casting machine head.

[0012] In a preferred embodiment, each feed pipe is fixedly provided with multiple positioning rods on the side near the extruder. One end of the extruder is machined with positioning holes equal to the number of positioning rods. The positioning rods are inserted into the positioning holes. A sealing ring is provided between the extruder and the feed pipe to improve the sealing between the casting die head and the feed pipe and to prevent leakage.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] 1. This utility model uses an extruder to transport PS plastic granules from the feed port to the casting die head. After passing through the casting die head, the granules are formed into uniform sheet-like melt, which is then cooled by the cooling roller and wound onto the winding roller. This enables the automatic production of PS film. The casting die head is connected to the extruder via a connecting component for easy and quick replacement. At the same time, a movable component support bracket is used to facilitate the direct replacement of the casting die head on the bracket by the operator, thereby improving replacement efficiency and production efficiency.

[0015] 2. The casting machine head is mounted in the frame by a sliding plate and secured with an electromagnetic lock. This not only improves the stability of the casting machine head but also allows workers to quickly disassemble and replace it. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a front view of the overall structure of this utility model;

[0018] Figure 3 This is a structural diagram of the casting mechanism of this utility model;

[0019] Figure 4 This is a schematic diagram showing the connection between the casting die head and the extruder of this utility model;

[0020] Figure 5 This is a schematic diagram showing the disassembled casting die head and extruder of this utility model.

[0021] The attached figures are labeled as follows: 1. Molding machine body; 2. Extruder; 3. Casting mechanism; 4. Cooling roller; 5. Rewinding roller; 6. Connecting assembly; 7. Linear module one; 8. Moving assembly; 9. Electromagnetic lock; 10. Locking groove; 11. Locking groove; 12. Positioning hole; 13. Sealing ring;

[0022] 31. Support; 32. Frame; 33. Opening; 34. Slide plate; 35. Casting machine head; 36. Feed pipe;

[0023] 61. Curved plate; 62. Electric push rod one; 63. Vertical plate; 64. Electric push rod two; 65. Limiting groove;

[0024] 81. Movable seat; 82. Linear module two; 83. Casters; 84. Mounting slot. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Refer to the instruction manual appendix Figures 1-5 This utility model provides a casting film forming machine for PS film production, including a forming machine body 1. The forming machine body 1 is provided with an extruder 2, a casting mechanism 3, a cooling roller 4 and a winding roller 5. The extruder 2 is fixed on the top of the forming machine body 1.

[0027] The casting mechanism 3 includes a support 31, inside which is a frame 32. A linear module 7 is fixedly installed on the inner wall of the support 31. The linear module 7 is a KATE Precision LES150. The linear module 7 is detachably connected to the frame 32. The front end of the frame 32 has multiple openings 33. A slide plate 34 is slidably installed in each opening 33. A casting head 35 for making PS film is detachably connected to the top of the slide plate 34. A feed pipe 36 is fixedly installed on the side of the casting head 35 near the extruder 2.

[0028] The bracket 31 is mounted on the molding machine body 1 via a movable component 8. Specifically, the movable component 8 includes a movable seat 81 detachably mounted on the molding machine body 1. A linear module 82 is fixedly mounted on the top of the movable seat 81. The linear module 82 is a KATE Precision LES80, and the top of the linear module 82 is connected to the bottom of the bracket 31. All four corners of the bottom of the movable seat 81 are fixedly equipped with universal wheels 83 with brakes. The front end of the molding machine body 1 has an installation groove 84, and the movable seat 81 and the universal wheels 83 are both located in the installation groove 84. In actual use, two slide rails can be fixed on the molding machine body 1, and two sliders can be fixed on the bottom of the bracket 31. Using sliders and slide rails can further improve the stability of the bracket 31's translation.

[0029] The feed pipe 36 is connected to the extruder 2 via a connecting assembly 6. Specifically, the connecting assembly 6 includes two arc-shaped plates 61 sleeved on the feed pipe 36. Each of the two arc-shaped plates 61 is fixedly provided with an electric push rod 62 on the side away from the casting head 35. A vertical plate 63 is fixedly provided on the outer wall of the electric push rod 62. The vertical plate 63 is connected to the molding machine body 1 via an electric push rod 64. The electric push rod 62 and the electric push rod 64 can be of the same model, such as Huiling Z-mod-ep-35rs-50. This type of electric push rod has a thrust of up to 280N, which can support the stable movement of the arc-shaped plates 61.

[0030] In actual use, the extruder 2 conveys PS plastic granules from the feed port to the discharge port. Simultaneously, the shearing and frictional forces generated by the rotation heat and melt the plastic granules, achieving the plasticizing process. After being extruded from the extruder 2, the material passes through the casting head 35 to form a uniform sheet-like melt, which is then cast onto the cooling roller 4. After cooling by the cooling roller 4, it is wound onto the take-up roller 5. When it is necessary to switch the casting head 35, first close the entire molding machine body 1, then use the electric push rod 62 to extend and move the arc plate 61 away from the right end of the feed pipe 36, and then... Two electric push rods 64 drive two arc plates 61 to move forward and backward in front of the feed pipe 36 respectively. Then, linear module 82 drives the casting head 35 in the bracket 31 to separate from the extruder 2. Linear module 7 drives the frame 32 to move upward and switch to another casting head 35. When all the casting heads 35 on the bracket 31 do not meet the production requirements, the operator releases the moving seat 81 and then pushes the bracket 31 to remove it from the molding machine body 1 and directly replace it with other types of brackets 31 and casting heads 35.

[0031] When reinstalling the casting head 35, the linear module 2 82 drives the casting head 35 to first insert into the end of the extruder 2. Then, under the drive of the electric push rod 1 62 and the electric push rod 2 64, the arc plate 61 firmly fixes the feed pipe 36 to the end of the extruder 2. After that, the molding machine body 1 is opened, and PS film production can continue.

[0032] In this embodiment, as Figures 3-5 As shown, the same number of electromagnetic locks 9 as the slide plate 34 are fixed and penetrated on the side of the bracket 31 away from the extruder 2. The electromagnetic locks 9 are LY-1264A, which have a suction force of 10-65N and a stroke of 20mm. They can be used to fix the slide plate 34. Each slide plate 34 has a locking groove 10 machined on the surface near the electromagnetic lock 9. The electromagnetic lock 9 is locked to the locking groove 10. The electromagnetic locks 9 are used to lock the slide plate 34 to prevent the slide plate 34 from shaking and affecting the stability of the casting head 35.

[0033] Refer to the instruction manual appendix Figures 4-5 The molding machine body 1 has limiting grooves 65 on both the front and rear sides of the top, which are adapted to the vertical plate 63. The vertical plate 63 is slidably disposed in the limiting groove 65. The limiting groove 65 is used to limit the vertical plate 63, thereby further improving the stability of the vertical plate 63 during the translation process.

[0034] Furthermore, multiple positioning rods 11 are fixedly provided on the side of each feed pipe 36 near the extruder 2. The extruder 2 has a number of positioning holes 12 that are the same as the number of positioning rods 11. The positioning rods 11 are inserted into the positioning holes 12. A sealing ring 13 is provided between the extruder 2 and the feed pipe 36. The sealing ring 13 can improve the sealing between the feed pipe 36 and the extruder 2.

[0035] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A casting film forming machine for PS film production, comprising a forming machine body (1), wherein the forming machine body (1) is provided with an extruder (2), a casting mechanism (3), a cooling roller (4), and a winding roller (5), wherein the extruder (2) is fixed on the top of the forming machine body (1), characterized in that: The casting mechanism (3) includes a support (31), and the support (31) has a frame (32) inside; The frame (32) has multiple openings (33) at its front end, and a sliding plate (34) is slidably provided in each opening (33). The top of the sliding plate (34) is detachably connected to a casting head (35) for making PS film. Each of the casting die head (35) is fixedly provided with a feed pipe (36) on the side near the extruder (2), and the feed pipe (36) is connected to the extruder (2) through a connecting assembly (6).

2. The casting film forming machine for PS film production according to claim 1, characterized in that: The inner wall of the bracket (31) is fixedly provided with a linear module (7), which is detachably connected to the frame (32). The bracket (31) is installed on the molding machine body (1) through a moving component (8).

3. The casting film forming machine for PS film production according to claim 1, characterized in that: The connecting assembly (6) includes two arc-shaped plates (61) sleeved on the feed tube (36). Each of the two arc-shaped plates (61) is fixedly provided with an electric push rod (62) on the side away from the casting head (35). The outer wall of the electric push rod (62) is fixedly provided with a vertical plate (63). The vertical plate (63) is connected to the molding machine body (1) through an electric push rod (64).

4. A casting film forming machine for PS film production according to claim 3, characterized in that: The molding machine body (1) has limiting grooves (65) on both the front and rear sides of the top, which are adapted to the vertical plate (63). The vertical plate (63) is slidably disposed in the limiting grooves (65).

5. A casting film forming machine for PS film production according to claim 2, characterized in that: The movable component (8) includes a movable seat (81) that is detachably mounted on the molding machine body (1). A linear module two (82) is fixedly provided on the top of the movable seat (81), and the top of the linear module two (82) is connected to the bottom of the bracket (31).

6. A casting film forming machine for PS film production according to claim 5, characterized in that: The four corners of the bottom of the movable seat (81) are fixed with universal wheels (83) with brakes. The front end of the molding machine body (1) is provided with an installation groove (84). The movable seat (81) and the universal wheels (83) are both located in the installation groove (84).

7. A casting film forming machine for PS film production according to claim 1, characterized in that: The bracket (31) has an electromagnetic lock (9) of the same number as the slide plate (34) fixedly inserted on the side away from the extruder (2). Each slide plate (34) has a locking groove (10) on the surface near the electromagnetic lock (9). The electromagnetic lock (9) is locked to the locking groove (10).

8. A casting film forming machine for PS film production according to claim 1, characterized in that: Each feed pipe (36) is fixed with multiple positioning rods (11) on the side near the extruder (2). One end of the extruder (2) is machined with the same number of positioning holes (12) as the positioning rods (11). The positioning rods (11) are inserted into the positioning holes (12). A sealing ring (13) is provided between the extruder (2) and the feed pipe (36).

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