Rapid demolding device for paper pulp molded product

Abstract

The utility model discloses a paper pulp molded product quick demoulding device, which comprises a forming machine body and a jacking mechanism, an upper mould and a lower mould are arranged on the forming machine body, the jacking mechanism comprises a fixed seat fixedly connected to the upper surface of the lower side of the forming machine body, a hollow rod is arranged in the fixed seat, and the upper mould and the lower mould are arranged on the upper surface of the lower side of the forming machine body. The upper end of the hollow rod penetrates through the outer surface of the upper portion of the fixing base and the outer surface of the lower side of the lower mold and is fixedly connected with a lifting plate, an inner cavity is formed in the inner surface of the lower mold, a top plate is arranged in the inner cavity, and a buffering assembly is arranged between the lifting plate and the top plate. Through the structure, the paper pulp molded product can be quickly demolded, the working efficiency is improved, and meanwhile, the situation that the molding quality is affected due to damage to the paper pulp molded product caused by overlarge ejection force is avoided.

Description

Technical Field

[0001] This utility model relates to the field of pulp plastic film product processing technology, and in particular to a rapid demolding device for pulp molded products. Background Technology

[0002] Pulp molding is a three-dimensional papermaking technology that uses waste paper as raw material. It involves shaping paper products into specific forms using special molds on a molding machine. It has four main advantages: the raw material is waste paper, including cardboard, waste paperboard, and waste paper scraps, making it widely available; the production process consists of pulping, adsorption molding, drying, and setting, which is environmentally friendly; it is recyclable; and it is smaller than foamed plastics, allowing for stacking and convenient transportation. Besides being used for lunch boxes and tableware, pulp molding is increasingly being used for industrial cushioning packaging, and its development is very rapid.

[0003] In the current production process of pulp molded products, the pulp is generally pressed into shape using a mold. However, during the pressing process, the pulp molded products may get stuck in the mold groove inside the lower mold, making them difficult to remove. This requires workers to manually demold the pulp molded products from the mold groove, which is cumbersome and affects work efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a rapid demolding device for pulp molded products, which can quickly demold pulp molded products, improve work efficiency, and at the same time avoid damage to pulp molded products caused by excessive ejection force, thus affecting molding quality.

[0005] To achieve the above objectives, a rapid demolding device for pulp molded products is provided, comprising a molding machine body and a lifting mechanism. The molding machine body is provided with an upper mold and a lower mold. The lifting mechanism includes a fixed seat fixedly connected to the lower upper surface of the molding machine body. A hollow rod is provided inside the fixed seat. The upper end of the hollow rod passes through the upper outer surface of the fixed seat and the lower outer surface of the lower mold, and is fixedly connected to a lifting plate.

[0006] The inner surface of the lower mold has an inner cavity, and a top plate is provided inside the inner cavity. A buffer assembly is provided between the lifting plate and the top plate.

[0007] According to the aforementioned rapid demolding device for pulp molded products, a drive motor is fixedly connected inside the fixed base, a rotating rod is fixedly connected to the output end of the drive motor, a lead screw is provided at the left end of the rotating rod, a moving plate is threadedly connected to the outer surface of the lead screw, and the moving plate is fixedly connected to the lower outer surface of the hollow rod.

[0008] According to the aforementioned rapid demolding device for pulp molded products, a first bevel gear is fixedly connected to the outer surface of the left end of the rotating rod, a second bevel gear is meshed with the upper end of the first bevel gear, and the second bevel gear is fixedly connected to the outer surface of the lower side of the lead screw.

[0009] According to the aforementioned rapid demolding device for pulp molded products, limit blocks are fixedly connected to the outer surfaces of both sides of the moving plate, and a limit groove is formed on the inner surface of the fixed seat. The limit blocks slide on the inner surface of the limit groove to limit the movement of the moving plate.

[0010] According to the aforementioned rapid demolding device for pulp molded products, the buffer assembly includes a movable sleeve and a movable column. The upper end of the movable column slides through the upper outer surface of the movable sleeve, and a movable block is fixedly connected to the lower end of the movable column. A buffer spring is fixedly connected to the lower outer surface of the movable block, and the buffer spring is fixedly connected to the lower inner surface of the movable sleeve to buffer the ejection force and prevent damage to the pulp molded products.

[0011] According to the aforementioned rapid demolding device for pulp molded products, a mold groove is provided on the upper inner surface of the lower mold, and guide holes are provided at the four corners of the bottom of the mold groove.

[0012] According to the aforementioned rapid demolding device for pulp molded products, ejector rods are fixedly connected to the four corners of the top surface of the top plate. The ejector rods are movable on the inner surface of the guide hole to achieve demolding of the pulp molded products.

[0013] This utility model has the following beneficial effects:

[0014] 1. Compared with existing technologies, the design utilizes a drive motor, rotating rod, first bevel gear, second bevel gear, and lead screw to drive the moving plate and hollow rod upwards, which in turn drives the lifting plate and top plate upwards. This causes the ejector rods, installed at the four corners of the top plate and inserted into the corresponding guide holes on the bottom of the mold groove, to move upwards, thereby ejecting the pulp-molded plastic film product from inside the mold groove. This achieves rapid demolding, avoids manual material handling, and improves work efficiency. At the same time, the design of the movable sleeve, movable column, movable block, and buffer spring prevents excessive ejection force from damaging the pulp-molded product and affecting the molding quality. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This is a schematic diagram of the overall structure of a rapid demolding device for pulp molded products according to this utility model;

[0017] Figure 2This is a front sectional view of the lower mold of a rapid demolding device for pulp molded products according to this utility model;

[0018] Figure 3 This is a front sectional view of the lifting mechanism of a rapid demolding device for pulp molded products according to this utility model;

[0019] Figure 4 This is a front cross-sectional view of the buffer component of a rapid demolding device for pulp molded products according to this utility model.

[0020] Legend:

[0021] 1. Molding machine body; 2. Upper mold; 3. Lower mold; 4. Lifting mechanism; 5. Mold groove; 6. Lifting plate; 7. Buffer assembly; 8. Top plate; 9. Ejector rod; 10. Guide hole; 11. Inner cavity;

[0022] 41. Fixed base; 42. Drive motor; 43. Rotating rod; 44. First bevel gear; 45. Second bevel gear; 46. Lead screw; 47. Moving plate; 48. Hollow rod; 49. Limiting block; 410. Limiting groove; 71. Movable sleeve; 72. Movable column; 73. Movable block; 74. Buffer spring. Detailed Implementation

[0023] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0024] Reference Figure 1-4 This utility model provides a rapid demolding device for pulp molded products, which includes a molding machine body 1 and a lifting mechanism 4. The molding machine body 1 is provided with an upper mold 2 and a lower mold 3. A mold groove 5 is opened on the upper inner surface of the lower mold 3, and guide holes 10 are opened at the four corners of the bottom of the mold groove 5.

[0025] The inner surface of the lower mold 3 has an inner cavity 11. Inside the inner cavity 11, there is a top plate 8 and a lifting plate 6. The top surface of the top plate 8 is fixedly connected to the four corners of the top plate 8. The ejector rods 9 correspond to the guide holes 10 and are inserted into the guide holes 10. By driving the ejector rods 9 to move upward inside the guide holes 10, the pulp molded product is ejected, and the demolding operation is realized. Several buffer components 7 are provided between the lifting plate 6 and the top plate 8.

[0026] The buffer assembly 7 includes a movable sleeve 71 and a movable column 72. The movable sleeve 71 is fixedly connected to the upper outer surface of the lifting plate 6. The upper end of the movable column 72 slides through the upper outer surface of the movable sleeve 71 and is fixedly connected to the lower outer surface of the top plate 8. A movable block 73 is fixedly connected to the lower end of the movable column 72. Slider blocks are fixedly connected to both sides of the movable block 73. A groove is provided on the inner surface of the movable sleeve 71. The slider is slidably connected to the inner surface of the groove, which serves to limit the movement of the movable block 73. A buffer spring 74 is fixedly connected to the lower outer surface of the movable block 73. The buffer spring 74 is fixedly connected to the lower inner surface of the movable sleeve 71.

[0027] The aforementioned mechanism, through the arrangement of movable sleeve 71, movable column 72, movable block 73 and buffer spring 74, buffers the vertical response force when ejecting the pulp molded product, avoiding excessive ejection force that could damage the pulp molded product and affect the molding quality.

[0028] The lifting mechanism 4 includes a fixed base 41 fixedly connected to the upper surface of the lower side of the molding machine body 1. A drive motor 42 is fixedly connected inside the fixed base 41. A rotating rod 43 is fixedly connected to the output end of the drive motor 42. A first bevel gear 44 is fixedly connected to the outer surface of the left end of the rotating rod 43. A second bevel gear 45 is meshed with the upper end of the first bevel gear 44. A lead screw 46 is fixedly connected to the inner surface of the second bevel gear 45. A moving plate 47 is threadedly connected to the outer surface of the lead screw 46. Limiting blocks 49 are fixedly connected to the outer surfaces of both sides of the moving plate 47. A limiting groove 410 is opened on the inner surface of the fixed base 41. The limiting blocks 49 slide on the inner surface of the limiting groove 410 to limit the moving plate 47. The moving plate 47 is fixedly connected to the lower outer surface of the hollow rod 48.

[0029] The above structure, through the arrangement of drive motor 42, rotating rod 43, first bevel gear 44, second bevel gear 45 and lead screw 46, drives moving plate 47 and hollow rod 48 to move upward, thereby driving lifting plate 6 and buffer assembly 7 to move upward, and then driving ejector rod 9, which is installed at the four corners of the top surface of top plate 8 and inserted into the corresponding guide holes 10 opened in the inner bottom surface of mold groove 5, to move upward, thereby ejecting pulp plastic film products and realizing rapid demolding operation.

[0030] Working Principle: In this rapid demolding device for pulp molded products, after the pulp molded product is pressed and formed in the mold groove 5 on the top surface of the lower mold 3 by the upper mold 2, the drive motor 42 is started, which drives the rotating rod 43 to rotate, thereby driving the first bevel gear 44 and the second bevel gear 45 to rotate, which in turn drives the lead screw 46 to rotate, and drives the moving plate 47 and the hollow rod 48 to move upward, which in turn drives the lifting plate 6, the buffer assembly 7 and the top plate 8 to move upward, so that the ejector rods 9 installed at the four corners of the top surface of the top plate 8 and inserted into the corresponding guide holes 10 opened in the inner bottom surface of the mold groove 5 move upward, thereby ejecting the pulp molded product pressed inside the mold groove 5, realizing rapid demolding operation, avoiding manual material handling, improving work efficiency, and at the same time, the buffer assembly 7 between the lifting plate 6 and the top plate 8 buffers the vertical response force, thereby avoiding excessive ejection force, which could damage the pulp molded product and affect the molding quality.

[0031] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A rapid demolding device for pulp molded products, characterized in that, The machine includes a molding machine body (1) and a lifting mechanism (4). The molding machine body (1) is provided with an upper mold (2) and a lower mold (3). The lifting mechanism (4) includes a fixed seat (41) fixedly connected to the upper surface of the lower side of the molding machine body (1). A hollow rod (48) is provided inside the fixed seat (41). The upper end of the hollow rod (48) passes through the upper outer surface of the fixed seat (41) and the lower outer surface of the lower mold (3), and is fixedly connected with a lifting plate (6). The inner surface of the lower mold (3) is provided with an inner cavity (11), and a top plate (8) is provided inside the inner cavity (11). A buffer assembly (7) is provided between the lifting plate (6) and the top plate (8).

2. The rapid demolding device for pulp molded products according to claim 1, characterized in that, A drive motor (42) is fixedly connected inside the fixed base (41). A rotating rod (43) is fixedly connected to the output end of the drive motor (42). A lead screw (46) is provided at the left end of the rotating rod (43). A moving plate (47) is threadedly connected to the outer surface of the lead screw (46). The moving plate (47) is fixedly connected to the lower outer surface of the hollow rod (48).

3. The rapid demolding device for pulp molded products according to claim 2, characterized in that, The left end of the rotating rod (43) is fixedly connected to a first bevel gear (44), and the upper end of the first bevel gear (44) is meshed with a second bevel gear (45). The second bevel gear (45) is fixedly connected to the lower outer surface of the lead screw (46).

4. The rapid demolding device for pulp molded products according to claim 2, characterized in that, Limiting blocks (49) are fixedly connected to the outer surfaces of both sides of the movable plate (47), and a limiting groove (410) is opened on the inner surface of the fixed seat (41). The limiting blocks (49) slide on the inner surface of the limiting groove (410).

5. The rapid demolding device for pulp molded products according to claim 1, characterized in that, The buffer assembly (7) includes a movable sleeve (71) and a movable column (72). The upper end of the movable column (72) slides through the upper outer surface of the movable sleeve (71). The lower end of the movable column (72) is fixedly connected to a movable block (73). A buffer spring (74) is fixedly connected to the lower outer surface of the movable block (73). The buffer spring (74) is fixedly connected to the lower inner surface of the movable sleeve (71).

6. The rapid demolding device for pulp molded products according to claim 1, characterized in that, The upper inner surface of the lower mold (3) is provided with a mold groove (5), and the bottom four corners of the mold groove (5) are respectively provided with guide holes (10).

7. The rapid demolding device for pulp molded products according to claim 1, characterized in that, The top plate (8) has four corners of the top surface fixedly connected with ejector rods (9), which move on the inner surface of the guide hole (10).

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