Molded pulp hot press molding equipment

Abstract

The utility model discloses paper pulp molding hot press molding equipment, which belongs to the technical field of papermaking, and comprises a molding die, an adjusting component, a molding press plate, a sliding plate body and an exhaust hole, the sliding plate body extends outwards through the elastic force of a reset spring, and the exhaust hole in the side wall of the sliding plate body is exposed outside. When the forming pressing plate is pressed downwards and inserted into the forming mold, air in the forming mold is exhausted outwards, after the sliding plate body makes contact with paper pulp, the sliding plate body shrinks inwards till the sliding plate body is parallel to the bottom of the forming pressing plate, and the upper end of each supporting plate is parallel to the bottom of the inner side of the forming mold through gravity; when the forming pressing plate moves downwards, the limiting plate makes contact with the arc-shaped hooks, then the rotating plates on the two sides are opened outwards, and then when the limiting plate is located at the rotating plates, the rotating plates on the two sides are reset through the torsional springs and limited through the arc-shaped hooks. After forming, the forming pressing plate moves upwards, so that the connecting enclosure frame can move upwards, and each supporting plate can move upwards to demold the paper pulp.

Description

Technical Field

[0001] The utility model belongs to the technical field of papermaking, and in particular relates to pulp molding hot pressing forming equipment. Background Art

[0002] Pulp molding is a three-dimensional papermaking technology. It uses waste paper as raw material, shaping paper products into specific shapes using specialized molds on a molding machine. It offers four key advantages: The raw material, including cardboard, waste carton paper, and waste white-edge paper, is widely available; the production process, consisting of pulping, adsorption molding, and drying and setting, is environmentally friendly; it is recyclable; and it is smaller than foamed plastic, allowing for stacking and convenient transportation.

[0003] Chinese utility model patent CN212152950U discloses a pulp molding hot press forming machine, comprising a molding base and a top plate arranged above the molding base and connected to the molding base via a vertical plate. A pressing plate is arranged between the top plate and the molding base, and a driving assembly is mounted on the top plate for driving the pressing plate to move up and down. A heating plate is arranged at the bottom of the pressing plate. A molding cavity adapted to the pressing plate is defined at the top of the molding base. A cardboard ejection assembly is also mounted on the side wall of the pressing plate. This embodiment of the utility model has the advantages of a simple structure and a good cardboard ejection effect. After the pulp raw material is hot-pressed and formed, the driving assembly is used to drive the pressing plate upward, while the connecting rod is used to drive the sleeve and the top plate upward, thereby ejecting the cardboard from the bottom of the cardboard to the outside of the molding cavity, thereby automatically separating the cardboard from the molding cavity and facilitating the removal of the cardboard.

[0004] Although the above-mentioned prior art can automatically separate the paperboard from the mold cavity, the air inside the mold cavity cannot be discharged when the pressing plate moves into the mold cavity, resulting in poor paperboard molding effect. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0006] In order to solve the problem in the above background technology that the air inside the mold cavity cannot be discharged when the pressing plate moves into the mold cavity, resulting in poor cardboard molding effect, the present invention adopts the following technical solution.

[0007] A pulp molding hot pressing forming equipment includes a forming mold, sliding rails are fixedly connected to the upper ends of the forming mold on both sides, the upper ends of the sliding rails on both sides are fixedly connected to mounting cross plates, an adjustment component is installed on the mounting cross plates, a forming pressure plate is installed on the adjustment component, the adjustment component enables the forming pressure plate to move downward or upward, a sliding plate body is provided at the bottom of the forming pressure plate, a plurality of exhaust holes penetrating the upper end of the sliding plate body and the forming pressure plate are provided on the outer wall of the forming pressure plate, and a heating plate is provided at the bottom of the sliding plate body and the bottom of the forming pressure plate.

[0008] Preferably, the bottom of the forming pressing plate is concave, a sliding plate body is provided at the concave portion, and a plurality of return springs are fixedly connected to the upper end of the sliding plate body.

[0009] Preferably, sliding blocks are fixedly connected to the outer walls at both ends of the forming press plate, and the sliding blocks on both sides are slidably connected to the sliding rails on both sides.

[0010] Preferably, a plurality of mounting grooves are provided at the inner bottom of the forming mold, a supporting plate is provided inside each mounting groove, the bottom of each supporting plate is fixedly connected to a sliding rod, each sliding rod passes through the forming mold, the bottoms of the plurality of sliding rods are fixedly connected to a connecting frame, and a linkage assembly is provided on the outer wall of the connecting frame, which enables each supporting plate to move upward at the same time when the forming pressure plate moves upward.

[0011] Preferably, the linkage assembly includes a connecting horizontal plate, a rotating plate, an arc-shaped hook, an L-shaped connecting plate and a limit plate. The outer walls on both sides of the connecting frame are fixedly connected to the connecting horizontal plate, the torsion springs on the connecting horizontal plates on both sides are rotatably connected to the rotating plate, the upper end of the rotating plate is fixedly connected to the arc-shaped hook, the outer walls on both sides of the forming pressure plate are fixedly connected to the L-shaped connecting plate, and the outer walls of the L-shaped connecting plates on both sides near the bottom are fixedly connected to the limit plate.

[0012] Preferably, the outer walls on both sides of the forming mold are fixedly connected with protruding plates, and the outer walls of the rotating plates on both sides close to the opposite sides of the bottom are fixedly connected with triangular plates.

[0013] Preferably, the adjustment assembly includes an electric telescopic rod, the upper end of the mounting horizontal plate is detachably connected to the electric telescopic rod, and the telescopic end of the electric telescopic rod passes through the mounting horizontal plate and is detachably connected to the upper end of the forming press plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The elastic force of the reset spring makes the sliding plate extend outward and exposes the exhaust holes on the side wall of the sliding plate. When the forming plate is pressed down and inserted into the interior of the forming mold, the air inside the forming mold is discharged outward. After the sliding plate contacts the pulp, it contracts inward until it is parallel to the bottom of the forming plate. The pulp can be heated and shaped by the heating plate.

[0016] 2. Gravity makes the upper end of each lifting plate parallel to the inner bottom of the forming mold. When the forming pressure plate moves downward, the limit plate contacts the arc-shaped hook, causing the rotating plates on both sides to open outward. Then, when the limit plate is located at the rotating plate, the rotating plates on both sides are reset by the torsion spring and limited by the arc-shaped hook. After forming, the forming pressure plate moves upward, which enables the connecting frame to move upward, and then each lifting plate moves upward to demold the pulp, making demolding more convenient.

[0017] 3. When the supporting plate moves upward, it contacts the extending plate through the triangular plate, so that the rotating plates on both sides are expanded outward, and then can be separated from the limit plate. Gravity causes each supporting plate to fall downward, so that the supporting plate can be automatically reset after demoulding, which is convenient for the next demoulding. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of a pulp molding hot pressing equipment in the utility model;

[0019] Figure 2 This is a schematic diagram of the forming press plate structure in the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the lifting plate in the utility model;

[0021] Figure 4 This is a schematic diagram of the rotating plate structure in the present utility model. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments. The present invention provides the following embodiments.

[0025] like Figure 1As shown, it is a structural schematic diagram of a pulp molding and hot pressing forming equipment of a preferred embodiment of the present invention. The pulp molding and hot pressing forming equipment of this embodiment includes a molding mold 100, and sliding rails 101 are fixedly connected to both sides of the upper end of the molding mold 100. The upper ends of the sliding rails 101 on both sides are fixedly connected to mounting cross plates 102, and the upper ends of the mounting cross plates 102 are detachably connected to electric telescopic rods 103. The telescopic end of the electric telescopic rod 103 passes through the mounting cross plates 102, and the telescopic end of the electric telescopic rod 103 is detachably connected to a molding press plate 200. In this embodiment, pulp is poured into the interior of the molding mold 100, and the molding press plate 200 is inserted into the interior of the molding mold 100 by extending the electric telescopic rod 103 to shape the pulp.

[0026] It is worth noting that the above-mentioned electric telescopic rod 103 is the adjustment component in this embodiment. The adjustment component includes but is not limited to the electric telescopic rod 103. As long as it is a component that can move the forming platen 200 upward or downward, it can be applied to this embodiment.

[0027] like Figure 2 As shown, it is a schematic diagram of the forming plate structure in this embodiment. The bottom of the forming plate 200 is concave, and a sliding plate body 201 is provided at the concave part. The upper end of the sliding plate body 201 is fixedly connected to a plurality of return springs 202. The outer wall of the forming plate 200 is provided with a plurality of exhaust holes 203 that penetrate the upper end of the sliding plate body 201 and the forming plate 200. The outer walls of both ends of the forming plate 200 are fixedly connected to sliding blocks 204. The sliding blocks 204 on both sides are slidably connected to the sliding rails 101 on both sides. The bottom of the sliding plate body 201 is fixedly connected to the sliding rails 101 on both sides. A heating plate 207 is provided at the top and bottom of the forming plate 200. In this embodiment, the elastic force of the return spring 202 causes the sliding plate body 201 to extend outward and the exhaust holes 203 on the side wall of the sliding plate body 201 are exposed. When the forming plate 200 is pressed down and inserted into the interior of the forming mold 100, the air inside the forming mold 100 is discharged outward. After the sliding plate body 201 contacts the pulp, it shrinks inward until it is parallel to the bottom of the forming plate 200. The pulp can be heated and shaped by the heating plate 207.

[0028] like Figure 2-3As shown, the inner bottom of the forming mold 100 is provided with a plurality of mounting grooves 104, and a lifting plate 300 is provided inside each mounting groove 104. The bottom of each lifting plate 300 is fixedly connected to a sliding rod 301, and each sliding rod 301 passes through the forming mold 100. The bottoms of the plurality of sliding rods 301 are fixedly connected to a connecting frame 302, and the outer walls on both sides of the connecting frame 302 are fixedly connected to connecting transverse plates 304. The torsion springs on the connecting transverse plates 304 on both sides are rotatably connected to rotating plates 303, and the upper ends of the rotating plates 303 are fixedly connected to arc-shaped hooks 305. The outer walls on both sides of the forming pressing plate 200 are fixedly connected to L-shaped connecting plates 205, and the L-shaped connecting plates 205 on both sides are fixedly connected. 05 The outer wall near the bottom is fixedly connected to the limiting plate 206. In this embodiment, gravity makes the upper end of each lifting plate 300 parallel to the inner bottom of the forming mold 100. When the forming pressure plate 200 moves downward, the limiting plate 206 contacts the arc-shaped hook 305, causing the rotating plates 303 on both sides to open outward. Then, when the limiting plate 206 is located at the rotating plate 303, the rotating plates 303 on both sides are reset by the torsion spring and limited by the arc-shaped hook 305. After forming, the forming pressure plate 200 moves upward, which can enable the connecting frame 302 to move upward, and then each lifting plate 300 can move upward to demold the pulp, making demolding more convenient.

[0029] It is worth noting that the above-mentioned connecting horizontal plate 304, rotating plate 303, arc-shaped hook 305, L-shaped connecting plate 205 and limiting plate 206 are the linkage components in this embodiment. The linkage components include but are not limited to the connecting horizontal plate 304, rotating plate 303, arc-shaped hook 305, L-shaped connecting plate 205 and limiting plate 206. As long as it is a component that can enable the supporting plate 300 to move upward following the forming pressure plate 200, it can be applied to this embodiment.

[0030] like Figure 3 as well as Figure 4 As shown, the outer walls on both sides of the molding mold 100 are fixedly connected with protruding plates, and the outer walls of the rotating plates 303 on both sides near the opposite sides of the bottom are fixedly connected with triangular plates 306. In this embodiment, when the lifting plates 300 move upward, they contact the protruding plates through the triangular plates 306, so that the rotating plates 303 on both sides are expanded outward, and then can be separated from the limiting plates 206. Gravity causes each lifting plate 300 to fall downward, so that the lifting plates 300 can be automatically reset after demolding, which is convenient for the next demolding.

[0031] The above content is a further detailed description of the present invention in combination with specific implementation methods. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, they can make several simple deductions or substitutions without departing from the concept of the present invention, which should be regarded as falling within the scope of protection determined by the claims submitted for the present invention.

Claims

1. A pulp molding hot pressing forming device, comprising a forming mold (100), wherein sliding rails (101) are fixedly connected to both sides of the upper end of the forming mold (100), and the upper ends of the sliding rails (101) on both sides are fixedly connected to mounting transverse plates (102), and an adjustment component is installed on the mounting transverse plates (102), and a forming pressing plate (200) is installed on the adjustment component, and the adjustment component enables the forming pressing plate (200) to move downward or upward, characterized in that: A sliding plate body (201) is provided at the bottom of the forming plate (200), a plurality of exhaust holes (203) penetrating the upper end of the sliding plate body (201) and the forming plate (200) are provided on the outer wall of the forming plate (200), and a heating plate (207) is provided at the bottom of the sliding plate body (201) and the bottom of the forming plate (200).

2. The pulp molding hot pressing equipment according to claim 1, characterized in that: The bottom of the forming pressing plate (200) is concave, a sliding plate body (201) is provided at the concave portion, and a plurality of return springs (202) are fixedly connected to the upper end of the sliding plate body (201).

3. The pulp molding hot pressing equipment according to claim 2, characterized in that: The outer walls at both ends of the forming press plate (200) are fixedly connected with sliding blocks (204), and the sliding blocks (204) on both sides are slidably connected to the sliding rails (101) on both sides.

4. The pulp molding hot pressing equipment according to claim 3, characterized in that: The inner bottom of the forming mold (100) is provided with a plurality of mounting grooves (104), and a lifting plate (300) is provided inside each mounting groove (104). The bottom of each lifting plate (300) is fixedly connected to a sliding rod (301), and each sliding rod (301) passes through the forming mold (100). The bottoms of the plurality of sliding rods (301) are fixedly connected to a connecting frame (302), and the outer wall of the connecting frame (302) is provided with a linkage assembly, and the linkage assembly enables each lifting plate (300) to move upward at the same time when the forming pressing plate (200) moves upward.

5. The pulp molding hot pressing equipment according to claim 4, characterized in that: The linkage assembly comprises a connecting transverse plate (304), a rotating plate (303), an arc-shaped hook (305), an L-shaped connecting plate (205) and a limiting plate (206); the outer walls on both sides of the connecting frame (302) are fixedly connected to the connecting transverse plate (304); the rotating plates (303) are rotatably connected to the connecting transverse plates (304) on both sides by torsion springs; the upper ends of the rotating plates (303) are fixedly connected to the arc-shaped hook (305); the outer walls on both sides of the forming press plate (200) are fixedly connected to the L-shaped connecting plates (205); and the outer walls of the L-shaped connecting plates (205) on both sides near the bottom are fixedly connected to the limiting plate (206).

6. The pulp molding hot pressing equipment according to claim 5, characterized in that: The outer walls of both sides of the forming mold (100) are fixedly connected with protruding plates, and the outer walls of the rotating plates (303) on both sides close to the opposite sides of the bottom are fixedly connected with triangular plates (306).

7. The pulp molding hot pressing equipment according to claim 6, characterized in that: The adjustment assembly includes an electric telescopic rod (103), the upper end of the mounting horizontal plate (102) is detachably connected to the electric telescopic rod (103), and the telescopic end of the electric telescopic rod (103) passes through the mounting horizontal plate (102) and is detachably connected to the upper end of the forming press plate (200).

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