Cold extrusion turnover molding type pulp molding automatic machine

Abstract

The utility model belongs to the technical field of paper pulp molding machines, and particularly relates to a cold extrusion turnover molding type paper pulp molding automatic machine which comprises a bottom frame, a machine frame is arranged on the bottom frame, a molding pulp box is arranged on the bottom frame, a molding die holder is arranged on the machine frame, a guide rail is fixedly connected to the machine frame, and the guide rail is fixedly connected to the machine frame. A hydraulic station is arranged on the machine frame, a hot-pressing lower die assembly is arranged on the machine frame, a hot-pressing upper die assembly is arranged on the machine frame, and a driving oil cylinder is arranged on the machine frame. According to the utility model, the wet blank is directly delivered to the hot-pressing lower die through the forming die, so that the wet blank is prevented from passing through a transfer die, a transfer die is saved, and the operation cost is reduced. The net face of the wet blank faces upwards, the surface is bright after hot pressing, the hot pressing lower mold discharges water vapor, a large amount of carbonized dirt can be smoothly discharged under the gravity effect, the probability that black spots exist on the surface when a product is demolded is reduced, and the product percent of pass is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pulp molding machines, in particular to an automatic pulp molding machine with cold extrusion and turnover molding. Background Art

[0002] At present, in the field of pulp molding, the main molding methods are grouting, scooping and flip molding. When grouting is used, part of the slurry is first filtered out of the molding cavity during molding, which is more obvious around the mold than in the center. Therefore, there is an uneven distribution of product weight, and the effect of scooping is better. In the flip molding method, the vacuum adsorption is turned on after the molding mold is immersed below the liquid level of the slurry box. Compared with the above two molding methods, the product weight is more uniform in the molding of the whole product. The industry generally uses a transfer mold to transfer the product from the molding mold to the hot press lower mold through the flip molding method, or the molding mold directly delivers the wet blank product to the hot press upper mold. After the hot press mold is heated and pressurized, the paper plastic product is finalized;

[0003] The above-mentioned method of transferring the mold to the hot pressing lower mold after flipping molding can also complete the shaping of most products. The main thing is that after the transfer, the mesh mold surface of the wet blank product after molding faces downward. When some products require that the mesh surface of the wet blank product is smooth after hot pressing and shaping, the hot pressing lower mold must be a smooth mold, and the hot pressing upper mold is a mesh mold. Hot pressing is the process of water vapor being discharged through the upper mold, which can be done by vacuuming or self-discharge. As the production continues, the water vapor is cooled and condensed on the channel wall during the discharge process. At the same time, pulp debris is also discharged along with the water vapor. In a high temperature and high humidity environment, sludge will be formed. Under the action of gravity, some of them will peel off and be blown onto the hot pressing upper mold mesh with the backblowing gas, and adhere to the surface of the product, affecting the surface quality of the product and reducing the qualified rate. Utility Model Content

[0004] The utility model aims to provide a pulp molding automatic machine with cold extrusion and turnover molding, which solves the problem of affecting the surface quality of products and reducing the qualified rate.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cold extrusion flip molding type pulp molding automatic machine, comprising a base frame, a frame is arranged on the base frame, a molding pulp box is arranged on the base frame, a molding die base is arranged on the frame, a guide rail is fixedly connected to the frame, a hydraulic station is arranged on the frame, a hot pressing lower die assembly is arranged on the frame, a hot pressing upper die assembly is arranged on the frame, a driving cylinder is arranged on the frame, a manipulator is arranged on the frame, and a conveyor belt is arranged on the frame.

[0006] Preferably, a lift is provided on the base frame, and the lift is fixedly connected to the forming pulp box. The design of the lift can drive the forming pulp box to move.

[0007] Preferably, a flip mold base motor is provided on the forming mold base, and the flip mold base motor is fixedly mounted on the guide rail. The design of the flip mold base motor can drive the forming mold base to flip.

[0008] Preferably, a slurry inlet pipe is provided on the forming slurry box, and the slurry inlet pipe is in contact with the frame. Through the design of the slurry inlet pipe, grouting can be poured into the forming slurry box.

[0009] Preferably, a hydraulic cylinder is provided on the frame, and the output end of the hydraulic cylinder is fixedly connected to the guide rail. Through the design of the hydraulic cylinder, the forming die base can be driven to move.

[0010] Preferably, a hot pressing lower die motor is provided on the frame, and the hot pressing lower die motor can be designed to drive the hot pressing lower die assembly to move.

[0011] Preferably, a tray is provided on the hot pressing lower mold assembly, and the tray is slidably connected to the frame. The tray is designed to be used for placing products.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model directly delivers the wet blank to the hot pressing lower die through the forming die, avoiding the transfer die, saving a transfer die, and reducing operating costs. The mesh surface of the wet blank faces upward, and the surface is bright after hot pressing. The hot pressing lower die discharges water vapor, and a lot of carbonized dirt can be discharged smoothly under the action of gravity, reducing the probability of black spots on the surface of the product when demolding, and improving the product qualification rate.

[0014] 2. The utility model can make the thickness of the wet blank product more uniform than the current slurry-scooping type by flipping the molding method, improve the qualified rate of the product, and avoid the inherent slurry storage problem of the slurry-scooping type. 2. Through cold extrusion, the moisture content of the wet blank product can be reduced to a certain extent, thereby reducing the energy consumption of hot pressing. At the same time, through cold extrusion, the surface of the wet blank product is further shaped, which is conducive to smoother mold attachment when transferred to the hot pressing lower mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0016] Figure 2 For the utility model Figure 1 A top view of

[0017] Figure 3 For the utility model Figure 1 Side view of.

[0018] In the figure: 1. base frame; 2. frame; 3. forming pulp box; 31. lift; 32. pulp inlet pipe; 4. forming die base; 41. flip die base motor; 42. hydraulic station; 43. hydraulic cylinder; 44. guide rail; 5. hot pressing lower die assembly; 51. hot pressing upper die assembly; 52. driving cylinder; 53. hot pressing lower die motor; 6. pallet; 7. manipulator; 8. conveyor belt. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-3 A cold extrusion flip molding type pulp molding automatic machine includes a base frame 1, a frame 2 is arranged on the base frame 1, a molding pulp box 3 is arranged on the base frame 1, a lifter 31 is arranged on the base frame 1, the lifter 31 is fixedly connected to the molding pulp box 3, and the molding pulp box 3 can be driven to move by the design of the lifter 31. The molding pulp box 3 is provided with a pulp inlet pipe 32, and the pulp inlet pipe 32 is in contact with the frame 2. The molding pulp box 3 can be filled with slurry by the design of the pulp inlet pipe 32.

[0021] See also Figure 2-3 A forming die base 4 is arranged on the frame 2, a guide rail 44 is fixedly connected to the frame 2, a flip die base motor 41 is arranged on the forming die base 4, a flip die base motor 41 is fixedly installed on the guide rail 44, and the design of the flip die base motor 41 can drive the forming die base 4 to flip, a hydraulic station 42 is arranged on the frame 2, a hydraulic cylinder 43 is arranged on the frame 2, an output end of the hydraulic cylinder 43 is fixedly connected to the guide rail 44, and the design of the hydraulic cylinder 43 can drive the forming die base 4 to move.

[0022] See also Figure 2-3 A hot pressing lower die assembly 5 is arranged on the frame 2, a hot pressing upper die assembly 51 is arranged on the frame 2, a driving cylinder 52 is arranged on the frame 2, a hot pressing lower die motor 53 is arranged on the frame 2, and the hot pressing lower die motor 53 is designed to drive the hot pressing lower die assembly 5 to move, a tray 6 is arranged on the hot pressing lower die assembly 5, and the tray 6 is slidably connected to the frame 2. The tray 6 is designed to place products, a manipulator 7 is arranged on the frame 2, and a conveyor belt 8 is arranged on the frame 2.

[0023] The specific implementation process of the utility model is as follows: the forming die base 4 is driven to descend to the lower limit position by the hydraulic cylinder 43, and the elevator 31 drives the forming slurry box 3 to rise, and the slurry immerses the forming die on the forming die base 4. After the vacuum valve is opened, the slurry is sucked and filtered to form. After the forming is completed, the elevator 31 drives the forming slurry box 3 to descend, and the forming die on the forming die base 4 is turned 180° by the turning die base motor 41 and then raised by the hydraulic cylinder 43 to the upper limit position to extrude the wet blank with the cold extrusion die. After the extrusion is completed, it is lowered by the hydraulic cylinder 43 and turned 180° by the turning die base motor 41 at the same time; after the hot pressing station completes the hot pressing, the dry product is adsorbed to the hot pressing upper die assembly 51, and the hot pressing lower die assembly 5 slides to the forming die station through the hot pressing lower die motor 53. At this time, the tray 6 for taking the product also slides to the hot pressing station synchronously, and the hot pressing upper die assembly 51 places the product on the tray 6 by blowing and demolding. After that, the forming mold on the forming mold base 4 continues to be driven down by the hydraulic cylinder 43 to fit with the hot pressing lower mold, completing the delivery of the wet blank to the hot pressing lower mold assembly 5, and then the hot pressing lower mold assembly 5 is reset back to the hot pressing station, and the hot pressing upper mold assembly 51 is molded with the hot pressing lower mold assembly 5 to start a new cycle of hot pressing.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cold extrusion flip-forming type pulp molding automatic machine, comprising a base frame (1), characterized in that: The base frame (1) is provided with a frame (2), the base frame (1) is provided with a forming pulp box (3), the frame (2) is provided with a forming die seat (4), the frame (2) is fixedly connected with a guide rail (44), the frame (2) is provided with a hydraulic station (42), the frame (2) is provided with a hot pressing lower die assembly (5), the frame (2) is provided with a hot pressing upper die assembly (51), the frame (2) is provided with a driving oil cylinder (52), the frame (2) is provided with a manipulator (7), and the frame (2) is provided with a conveyor belt (8).

2. The automatic cold extrusion and flip molding pulp molding machine according to claim 1, characterized in that: The base frame (1) is provided with a lift (31), and the lift (31) is fixedly connected to the forming pulp box (3).

3. The automatic cold extrusion and turnover forming pulp molding machine according to claim 1, characterized in that: The molding die base (4) is provided with a flip die base motor (41), and the guide rail (44) is fixedly mounted with the flip die base motor (41).

4. The automatic cold extrusion and turnover forming pulp molding machine according to claim 1, characterized in that: The forming pulp box (3) is provided with a pulp inlet pipe (32), and the pulp inlet pipe (32) is in contact with the frame (2).

5. The automatic cold extrusion and turnover forming pulp molding machine according to claim 1, characterized in that: A hydraulic cylinder (43) is provided on the frame (2), and an output end of the hydraulic cylinder (43) is fixedly connected to a guide rail (44).

6. The automatic cold extrusion and turnover forming pulp molding machine according to claim 1, characterized in that: The frame (2) is provided with a hot pressing lower die motor (53).

7. The automatic cold extrusion and turnover forming pulp molding machine according to claim 1, characterized in that: The hot pressing lower mold assembly (5) is provided with a tray (6), and the tray (6) is slidably connected to the frame (2).

Images