A thickness adjustment mechanism for a casting machine

Abstract

This utility model discloses a thickness adjustment mechanism for a casting machine, including a mold head. A material cylinder is fixedly mounted on the upper end of the mold head. A guide roller is rotatably mounted at the middle position between the material cylinder and the mold head. Two sets of guide rollers are arranged symmetrically. An inclined guide plate is provided below the guide rollers and on the inner wall of the mold head. A sliding hole is opened below the inclined guide plate and on the inner wall of the mold head. A control plate is slidably mounted inside the sliding hole. A connecting block is fixedly mounted on the upper end face of the control plate through the sliding hole. A lead screw is rotatably mounted on both sides of the mold head. The lead screw is threadedly connected to the connecting block, so that the user can rotate the handwheel to rotate the lead screw. At this time, the lead screw will drive the control plate to move through the connecting block to adjust the distance of its lower end, which is convenient for processing films into different thicknesses and is easy to use.

Description

Technical Field

[0001] This utility model relates to the field of casting machine technology, and more specifically, it relates to a thickness adjustment mechanism for a casting machine. Background Technology

[0002] With the increasing application of thin films in industrial production and daily life, applying thin films to the surface of bags and cases not only enhances their aesthetics but also significantly improves their impact and pressure resistance. The thickness of the thin film is a crucial parameter, affecting the overall surface physical state and the heat-pressing bond with the case material during subsequent processing. Controlling the film thickness within the lower tolerance range also saves material and reduces production costs. Therefore, a casting machine is required for the production of thin films.

[0003] However, the size and dimensions of the lower discharge port of the existing casting machine's die head are fixed, making it impossible to adjust the gap of the discharge port. Consequently, the casting film thickness cannot be adjusted during use, affecting normal operation. Furthermore, the barrel of a casting machine is mostly open, making it easy for external dust to enter during use, which can affect the normal use of plastic raw materials. Utility Model Content

[0004] (a) Technical problems to be solved To address the problems existing in the prior art, this utility model provides a thickness adjustment mechanism for a casting machine, thereby solving the technical problem mentioned in the background art where the size and dimensions of the lower discharge port of the die head of the existing casting machine are fixed, making it impossible to adjust the gap of the discharge port, and thus making it impossible to adjust the thickness of the cast film during use.

[0005] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a thickness adjustment mechanism for a casting machine, comprising a mold head, a material cylinder fixedly mounted on the upper end of the mold head, a guide roller rotatably mounted at the middle position between the material cylinder and the mold head, two sets of guide rollers arranged symmetrically, an inclined guide plate mounted below the guide rollers and on the inner wall of the mold head, a sliding hole mounted below the inclined guide plate and on the inner wall of the mold head, a control plate slidably mounted inside the sliding hole, a connecting block fixedly mounted on the upper end face of the control plate passing through the sliding hole, a lead screw rotatably mounted on both sides of the mold head, the lead screw being threadedly connected to the connecting block, a handwheel mounted on the upper end face of the lead screw, a cover mounted on the upper end of the material cylinder, and a sealing ring mounted on the bottom of the cover.

[0006] The present invention is further configured such that a sealing groove is correspondingly provided on the outer wall of the material cylinder, the sealing ring is located inside the sealing groove, a groove is provided on the upper end face of the cover and located at the periphery, an internal thread cover is movably provided inside the groove, an external thread is provided on the outer wall of the material cylinder, the internal thread cover is fixedly installed with the material cylinder through the external thread, and the inside of the cover abuts against the bottom wall of the groove, which facilitates the fixed installation of the cover.

[0007] The present invention is further provided with a rubber gasket between the sealing ring and the sealing groove, which facilitates further improvement of the sealing performance between the cover and the material cylinder.

[0008] The present invention is further configured such that the inside of the material cylinder is provided with a cavity, the cavity is provided with a heating wire assembly, and the inner wall of the cavity is provided with a heat-conducting plate. The heat-conducting plate is in contact with the heating wire assembly, which facilitates heating the plastic raw material for making the film so that it is in a molten state.

[0009] The present invention is further provided with a heat preservation plate on the inner wall of the cavity and at the outer end of the heating wire assembly, which facilitates heat preservation of the film material and reduces heat loss.

[0010] The present invention is further configured such that a discharge pipe is fixedly provided at the bottom of the mold head, which facilitates the discharge of film raw materials and makes it convenient to connect with subsequent processing equipment.

[0011] The present invention is further configured such that a feeding funnel is fixedly provided on the upper end surface of the cover, and the feeding funnel is provided with a solenoid valve to facilitate feeding material into the material cylinder.

[0012] The present invention is further provided with a guide plate at the connection position between the material cylinder and the mold head, which facilitates the guiding of the film raw material.

[0013] (III) Beneficial Effects Compared with the prior art, the present invention provides a thickness adjustment mechanism for a casting machine, which has the following advantages: 1. By setting up an inclined guide plate, control plate and lead screw, the user can turn the handwheel to rotate the lead screw. At this time, the lead screw will drive the control plate to move through the connecting block, so as to adjust the distance of its lower end, which makes it convenient to process the film into different thicknesses and convenient to use.

[0014] 2. By setting up a snap cover, sealing ring, sealing groove and internal thread cover, the user can tighten it by rotating the internal thread cover. At this time, the sealing ring will enter the sealing groove, causing the rubber gasket at the connection position to deform and enter, thereby increasing the sealing between the snap cover and the material cylinder, preventing dust from entering, and helping to increase the overall quality of the film raw material.

[0015] 3. By setting a cavity, heating wire assembly and heat conduction plate inside the barrel, the heating wire assembly can be controlled to allow heat to enter the barrel through the heat conduction plate during long-term film production, so that the raw materials inside are in a molten state, which is convenient for subsequent use and reduces solidification. Attached Figure Description

[0016] Figure 1 This is an overall schematic diagram of the thickness adjustment mechanism of a casting machine in its unused state; Figure 2 This is an overall cross-sectional view of a thickness adjustment mechanism for a casting machine; Figure 3 Exploded view of the installation of the barrel, cover, internal thread cover and rubber gasket; Figure 4 This is a schematic diagram showing the positions of the heating wire assembly, heat-conducting plate, and insulation plate in the barrel. Figure 5 This is a schematic diagram showing the location of the connecting blocks on the control panel.

[0017] In the diagram: 1. Mold head; 2. Material cylinder; 3. Guide roller; 4. Inclined guide plate; 5. Sliding hole; 6. Control plate; 7. Connecting block; 8. Lead screw; 9. Handwheel; 10. Cover; 11. Sealing ring; 12. Sealing groove; 13. Groove; 14. Internal threaded cover; 15. Rubber pad; 16. Cavity; 17. Heating wire assembly; 18. Heat-conducting plate; 19. Insulation plate; 20. Discharge pipe; 21. Feeding funnel; 22. Solenoid valve; 23. Guide plate. Detailed Implementation

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0020] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0021] Please see Figure 1-5A thickness adjustment mechanism for a casting machine includes a mold head 1, a material cylinder 2 fixedly mounted on the upper end of the mold head 1, a guide roller 3 rotatably mounted at the middle position between the material cylinder 2 and the mold head 1, two sets of guide rollers 3 symmetrically arranged, an inclined guide plate 4 mounted below the guide roller 3 and on the inner wall of the mold head 1, a sliding hole 5 opened below the inclined guide plate 4 and on the inner wall of the mold head 1, a control plate 6 slidably mounted inside the sliding hole 5, a connecting block 7 fixedly mounted on the upper end face of the control plate 6 passing through the sliding hole 5, a lead screw 8 rotatably mounted on both sides of the mold head 1, the lead screw 8 being threadedly connected to the connecting block 7, a handwheel 9 mounted on the upper end face of the lead screw, a cover 10 mounted on the upper end of the material cylinder 2, a sealing ring 11 mounted on the bottom of the cover 10, and a discharge pipe 20 fixedly mounted on the bottom of the mold head 1.

[0022] In this embodiment, a sealing groove 12 is provided on the outer wall of the barrel 2, and a sealing ring 11 is located inside the sealing groove 12. A groove 13 is provided on the upper end face of the cover 10 and located at the periphery. An internal thread cover 14 is movably provided inside the groove 13. An external thread is provided on the outer wall of the barrel 2. The internal thread cover 14 is fixedly installed with the barrel 2 through the external thread. The inside of the cover 10 abuts against the bottom wall of the groove 13. A rubber gasket 15 is provided between the sealing ring 11 and the sealing groove 12.

[0023] More specifically, the user can rotate the screw 8 by turning the handwheel 9. At this time, the screw 8 will drive the control plate 6 to move through the connecting block 7, so as to adjust the distance of its lower end, which is convenient for processing the film into different thicknesses and is convenient and flexible to use. When sealing the upper end of the material cylinder 2, the internal thread cover 14 can be turned to tighten it. At this time, the sealing ring 11 will enter the sealing groove 12, so that the rubber gasket 15 at the connection position will deform and enter to increase the sealing between the cover 10 and the material cylinder 2, prevent dust from entering, and help to increase the overall quality of the film raw material.

[0024] Please see Figure 3 and Figure 4 As an embodiment for heating the plastic raw material in the barrel 2: the barrel 2 has a cavity 16 inside, a heating wire assembly 17 is provided inside the cavity 16, a heat-conducting plate 18 is provided on the inner wall of the cavity 16, the heat-conducting plate 18 is in contact with the heating wire assembly 17, a heat-insulating plate 19 is provided on the inner wall of the cavity 16 and at the outer end of the heating wire assembly 17, and a guide plate 23 is provided at the connection position between the barrel 2 and the mold head 1.

[0025] Specifically, during the long-term production of the film, the heating wire assembly 17 can be controlled to allow heat to enter the barrel 2 through the heat conduction plate 18, so that the raw materials inside are in a molten state, which facilitates subsequent use and reduces solidification.

[0026] Please refer to Figure 1 As a further embodiment of feeding material into the material cylinder 2: a feeding funnel 21 is fixedly provided on the upper end face of the cover 10, and a solenoid valve 22 is provided on the feeding funnel 21.

[0027] Specifically, users can add plastic raw materials into the material cylinder 2 through the feeding funnel 21, which facilitates the material feeding operation.

[0028] In summary, when using the overall equipment: the user can rotate the handwheel 9 to rotate the lead screw 8, which will then drive the control plate 6 to move via the connecting block 7, allowing for adjustment of the distance at its lower end. This facilitates the processing of films into different thicknesses and provides flexible use. When sealing the upper end of the material cylinder 2, the internal threaded cover 14 can be rotated to tighten it. At this time, the sealing ring 11 will enter the sealing groove 12, causing the rubber gasket 15 at its connection point to deform and increase the sealing between the cover 10 and the material cylinder 2, preventing dust from entering and helping to improve the overall quality of the film raw materials. During long-term film production, the heating wire assembly 17 can be controlled to allow heat to enter the material cylinder 2 through the heat conduction plate 18, keeping the raw materials inside in a molten state, facilitating subsequent use and reducing solidification.

[0029] The motors mentioned above are all controlled by controllers or drivers. Since the controllers and matching equipment are common devices and belong to existing mature technologies, their electrical connection relationships and specific circuit structures will not be described in detail here.

[0030] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A thickness adjustment mechanism for a casting machine, comprising a die head (1), characterized in that: The upper end of the mold head (1) is fixedly provided with a material cylinder (2). A guide roller (3) is rotatably provided at the middle position between the material cylinder (2) and the mold head (1). There are two sets of guide rollers (3) arranged symmetrically. An inclined guide plate (4) is provided below the guide roller (3) and on the inner wall of the mold head (1). A sliding hole (5) is provided below the inclined guide plate (4) and on the inner wall of the mold head (1). A control plate (6) is slidably provided inside the sliding hole (5). The upper end face of the control plate (6) passes through the sliding hole (5) and is fixedly provided with a connecting block (7). A lead screw (8) is rotatably provided on both sides of the mold head (1). The lead screw (8) is threadedly connected to the connecting block (7). A handwheel (9) is provided on the upper end face of the lead screw. A cover (10) is provided at the upper end of the material cylinder (2). A sealing ring (11) is provided at the bottom of the cover (10).

2. The thickness adjustment mechanism of a casting machine according to claim 1, characterized in that: A sealing groove (12) is provided on the outer wall of the material cylinder (2). The sealing ring (11) is located inside the sealing groove (12). A groove (13) is provided on the upper end face of the cover (10) and at the periphery. An internal thread cover (14) is movably provided inside the groove (13). An external thread is provided on the outer wall of the material cylinder (2). The internal thread cover (14) is fixedly installed with the material cylinder (2) through the external thread. The inside of the cover (10) abuts against the bottom wall of the groove (13).

3. The thickness adjustment mechanism of a casting machine according to claim 2, characterized in that: A rubber pad (15) is provided between the sealing ring (11) and the sealing groove (12).

4. The thickness adjustment mechanism of a casting machine according to claim 1, characterized in that: The material cylinder (2) has a cavity (16) inside, and a heating wire assembly (17) is provided inside the cavity (16). A heat-conducting plate (18) is provided on the inner wall of the cavity (16), and the heat-conducting plate (18) is in contact with the heating wire assembly (17).

5. The thickness adjustment mechanism of a casting machine according to claim 4, characterized in that: A heat insulation plate (19) is provided on the inner wall of the cavity (16) and at the outer end of the heating wire assembly (17).

6. The thickness adjustment mechanism of a casting machine according to claim 1, characterized in that: The bottom of the mold head (1) is fixedly provided with a discharge pipe (20).

7. The thickness adjustment mechanism of a casting machine according to claim 1, characterized in that: The upper surface of each cover (10) is fixedly provided with a feeding funnel (21), and the feeding funnel (21) is provided with a solenoid valve (22).

8. The thickness adjustment mechanism of a casting machine according to claim 1, characterized in that: A guide plate (23) is provided at the connection position between the material cylinder (2) and the mold head (1).

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