A pulp moulding extrusion dewatering device

Abstract

The utility model relates to the technical field of paper pulp molding, especially to a paper pulp molding extrusion dehydration device, which is provided with a plurality of groups of guiding bottom buffering contact devices, can reduce the impulse change of extrusion dehydration, optimizes the protection performance, and improves the reliability; the device comprises a base, guide rods, a top seat, a movable seat, guide sleeves, a dehydration mold, return springs and an extrusion block, four corners of the top end of the base are respectively connected with the bottom end of a group of guide rods, the top end of four groups of guide rods is respectively connected with four corners of the bottom end of the top seat, the top seat is connected with the top end of the extrusion block through a lifting driving mechanism, each group of guide sleeves is respectively connected with the inner side of four corners of the movable seat, the inner wall of each group of guide sleeves is respectively and slidably connected with the outer wall of the guide rod on the same side, the outer part of each group of guide sleeves at the bottom end of the movable seat is respectively connected with the top end of a group of return springs, the bottom end of each group of return springs is respectively connected with the corresponding guide rod outside the top end of the base, and the inner side of the middle part of the movable seat is provided with the dehydration mold.

Description

Technical Field

[0001] This utility model relates to the technical field of pulp molding, specifically to a pulp molding extrusion dewatering device. Background Technology

[0002] Pulp molding (also known as paper trays) is a three-dimensional environmentally friendly packaging material made from renewable raw materials such as waste paper, straw fiber or bagasse through processes such as pulping, adsorption molding, drying and shaping.

[0003] During its processing, including the corresponding extrusion dehydration process, the existing extrusion device usually includes a bottom mold and a top mold. When the two are closed, water is squeezed out by extrusion. The main method is to drive the bottom mold to rise and fall directly to close with the top mold through the drive component. The bottom mold is supported by a support shaft. Because the extrusion force is relatively large and the extrusion force will directly act on the support shaft, the support shaft will be deformed, resulting in inaccurate mold closing and easy to produce defective products.

[0004] In addition, there is a pulp molding extrusion dewatering device, such as the one with patent publication number CN221320518U. It is assembled on a pulp mill. The bottom mold is vacuumed so that the surface of the bottom mold adsorbs fibers on the pulp tank to form a semi-finished product. Then, the bottom mold is moved to the top mold position by the lifting of the first mold base. Then, the lifting component is retracted and hooked on the first mold base or the bottom mold. The lifting drive component drives the lifting component to rise. At this time, the lifting component will drive the bottom mold to squeeze the top mold, thereby achieving the effect of dewatering. Moreover, the lifting force of the lifting component is on the first mold base or the bottom mold, which has good stability and is not easy to deform or be damaged.

[0005] However, because this type of device has a fixed bottom membrane, its contact impulse is large and its reliability is poor. Utility Model Content

[0006] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a pulp molding extrusion dewatering device with multiple sets of bottom buffer contact devices that can reduce the impulse changes during extrusion dewatering, optimize protective performance, and improve reliability.

[0007] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a pulp molding extrusion dewatering device, comprising a base, guide rods, a top seat, a movable seat, guide sleeves, a dewatering mold, a return spring, and an extrusion block. The four corners of the top of the base are respectively connected to the bottom ends of a set of guide rods, and the top ends of the four sets of guide rods are respectively connected to the four corners of the bottom of the top seat. The top seat is connected to the top of the extrusion block via a lifting drive mechanism. A set of guide sleeves is connected inside the four corners of the movable seat. The inner wall of each set of guide sleeves is slidably connected to the outer wall of the guide rod on the same side. The outer side of each set of guide sleeves at the bottom of the movable seat is respectively connected to the top of a set of return springs. The bottom end of each set of return springs is respectively connected to the outer side of the corresponding guide rod at the top of the base. A dewatering mold is provided on the inner side of the middle of the movable seat.

[0008] Preferably, it also includes a guide bucket and a water outlet pipe, wherein the bottom of the dewatering mold is connected to the guide bucket, and the bottom of the guide bucket is connected to the input side of the water outlet pipe.

[0009] Preferably, the lifting drive mechanism includes a reversible motor, a threaded rod, an internal threaded tube, a constraint sleeve, and a slide bar. The top side of the top seat is connected to the bottom side of the reversible motor. The output end of the reversible motor is connected to the top side of the threaded rod. The outer wall of the threaded rod is screwed to the inner wall of the internal threaded tube. The bottom side of the internal threaded tube is connected to the top side of the extrusion block. The top left and right sides of the extrusion block are respectively connected to the bottom side of a set of slide bars. A set of constraint sleeves is respectively connected to the inner side of the top seat. The inner wall of the constraint sleeve is slidably connected to the outer wall of the slide bar on the same side.

[0010] Preferably, it also includes an oil injection nozzle, and a set of oil injection nozzles are respectively provided on the front and rear parts of the left and right sides of the movable seat, and the output end of the oil injection nozzle is connected to the inner wall of the corresponding guide sleeve.

[0011] Preferably, it also includes an oil filling cap, with the outer side of each set of oil filling nozzles being detachably installed to the inner side of a set of oil filling caps.

[0012] Preferably, it also includes an information board, with the left front end of the top seat connected to the inner side of the information board.

[0013] (III) Beneficial Effects Compared with the prior art, the present invention provides a pulp molding extrusion dewatering device, which has the following beneficial effects: First, pulp is fed into the dewatering mold, causing it to absorb and form a semi-finished product. Then, with the top seat fixed, a lifting drive mechanism operates, causing the extrusion block to descend vertically. The extrusion block acts on the inside of the dewatering mold for compression. When the force inside the dewatering mold extends to the movable seat, it is compressed and deformed by all the return springs. This causes the movable seat to move vertically under the sliding constraint of the guide rods via four sets of guide sleeves, thereby reducing impact. After the movable seat descends to its limit, the extrusion block acts on the inside of the dewatering mold for dewatering. When the extrusion block returns to its original position, all the return springs can restore and drive the movable seat to its original height position. Multiple sets of bottom buffer contact devices are set up to reduce the impact changes of extrusion and dewatering, optimize protection performance, and improve reliability. Attached Figure Description

[0014] Figure 1 This is an axial view of the structural schematic diagram of this utility model; Figure 2 This utility model Figure 1 Front view; Figure 3 This utility model Figure 1 The right view; Figure 4 This utility model Figure 1 The top view.

[0015] The following are labeled in the attached diagram: 1. Base; 2. Guide rod; 3. Top seat; 4. Movable seat; 5. Guide sleeve; 6. Dewatering mold; 7. Return spring; 8. Extrusion block; 9. Guide bucket; 10. Water outlet pipe; 11. Forward and reverse motor; 12. Threaded rod; 13. Internal threaded pipe; 14. Constraint sleeve; 15. Slide bar; 16. Oil injection nozzle; 17. Oil injection cap; 18. Information board. Detailed Implementation

[0016] 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.

[0017] Example 1 Please see Figure 1-4A pulp molding extrusion dewatering device includes a base 1, guide rods 2, a top seat 3, a movable seat 4, guide sleeves 5, a dewatering mold 6, return springs 7, and an extrusion block 8. The four corners of the top of the base 1 are each connected to the bottom of a set of guide rods 2. The tops of the four sets of guide rods 2 are each connected to the four corners of the bottom of the top seat 3. The top seat 3 is connected to the top of the extrusion block 8 via a lifting drive mechanism. A set of guide sleeves 5 is connected inside each of the four corners of the movable seat 4. The inner wall of each set of guide sleeves 5 is slidably connected to the outer wall of the guide rod 2 on the same side. The outer side of each set of guide sleeves 5 at the bottom of the movable seat 4 is connected to the top of a set of return springs 7. The bottom of each set of return springs 7 is connected to the outer side of the corresponding guide rod 2 at the top of the base 1. A dewatering mold 6 is provided on the inner side of the middle of the movable seat 4. First, material is fed into the dewatering mold 6, so that the pulp inside the dewatering mold 6 is adsorbed to form a semi-finished product. Then, under the fixation of the top seat 3, the lifting drive mechanism runs, so that the extrusion block 8 descends vertically, so that the extrusion block 8 acts on the inside of the dewatering mold 6 to compress it. When the force inside the dewatering mold 6 extends to the movable seat 4, it is compressed and deformed by all the return springs 7, so that the movable seat 4 moves vertically under the sliding constraint of the guide rod 2 through the four sets of guide sleeves 5, thereby reducing the impact. After the movable seat 4 descends to the limit, the extrusion block 8 acts on the inside of the dewatering mold 6 to dewater it. When the extrusion block 8 returns to its original position, all the return springs 7 can restore and drive the movable seat 4 to rise to the original height position.

[0018] It also includes a guide bucket 9 and a water outlet pipe 10. The bottom of the dewatering mold 6 is connected to the guide bucket 9, and the bottom of the guide bucket 9 is connected to the input side of the water outlet pipe 10. The guide bucket 9 can concentrate water downwards and discharge it through the water outlet pipe 10, improving convenience.

[0019] The lifting drive mechanism includes a reversible motor 11, a threaded rod 12, an internally threaded tube 13, a constraint sleeve 14, and a slide bar 15. The top side of the top seat 3 is connected to the bottom side of the reversible motor 11. The output end of the reversible motor 11 is connected to the top side of the threaded rod 12. The outer wall of the threaded rod 12 is screwed to the inner wall of the internally threaded tube 13. The bottom side of the internally threaded tube 13 is connected to the top side of the extrusion block 8. The middle parts of the left and right sides of the top of the extrusion block 8 are respectively connected to the bottom side of a set of slide bars 15. A set of constraint sleeves 14 are respectively connected to the inner side of the left and right sides of the top seat 3. The inner wall of the constraint sleeve 14 is slidably connected to the outer wall of the slide bar 15 on the same side. When the reversible motor 11 runs, the threaded rod 12 can rotate. The threaded rod 12 is screwed to the internally threaded tube 13 and slidably constrained by the two sets of slide bars 15 in the corresponding constraint sleeves 14, which can connect the extrusion block 8 to vertical lifting.

[0020] Example 2 Please see Figure 1-4A pulp molding extrusion dewatering device includes a base 1, guide rods 2, a top seat 3, a movable seat 4, guide sleeves 5, a dewatering mold 6, return springs 7, and an extrusion block 8. The four corners of the top of the base 1 are each connected to the bottom of a set of guide rods 2. The tops of the four sets of guide rods 2 are each connected to the four corners of the bottom of the top seat 3. The top seat 3 is connected to the top of the extrusion block 8 via a lifting drive mechanism. A set of guide sleeves 5 is connected inside each of the four corners of the movable seat 4. The inner wall of each set of guide sleeves 5 is slidably connected to the outer wall of the guide rod 2 on the same side. The outer side of each set of guide sleeves 5 at the bottom of the movable seat 4 is connected to the top of a set of return springs 7. The bottom of each set of return springs 7 is connected to the outer side of the corresponding guide rod 2 at the top of the base 1. A dewatering mold 6 is provided on the inner side of the middle of the movable seat 4. First, material is fed into the dewatering mold 6, so that the pulp inside the dewatering mold 6 is adsorbed to form a semi-finished product. Then, under the fixation of the top seat 3, the lifting drive mechanism runs, so that the extrusion block 8 descends vertically, so that the extrusion block 8 acts on the inside of the dewatering mold 6 to compress it. When the force inside the dewatering mold 6 extends to the movable seat 4, it is compressed and deformed by all the return springs 7, so that the movable seat 4 moves vertically under the sliding constraint of the guide rod 2 through the four sets of guide sleeves 5, thereby reducing the impact. After the movable seat 4 descends to the limit, the extrusion block 8 acts on the inside of the dewatering mold 6 to dewater it. When the extrusion block 8 returns to its original position, all the return springs 7 can restore and drive the movable seat 4 to rise to the original height position.

[0021] It also includes grease nipples 16. A set of grease nipples 16 is provided on the front and rear parts of the left and right sides of the movable seat 4. The output end of the grease nipple 16 is connected to the inner wall of the corresponding guide sleeve 5. Oil can be injected into the inner wall of the corresponding guide sleeve 5 through the grease nipple 16 to lubricate the guide sleeve 5 in contact with the guide rod 2, which is convenient for maintenance.

[0022] It also includes an oil filling cap 17, and the outer side of each set of oil filling nozzles 16 is detachably installed to the inner side of an oil filling cap 17; after the oil filling cap 17 is installed on the outer side of the oil filling nozzle 16, the inside of the oil filling nozzle 16 can be sealed and protected, improving reliability.

[0023] It also includes an information board 18, with the left front end of the top base 3 connected to the inside of the information board 18; the information board 18 can display information about the device, making it easier to read and use, and improving convenience.

[0024] This forward and reverse motor 11 is a commercially available device known to those skilled in the art, and has a corresponding control system to fulfill its functions. Here we are simply using it without making any structural or functional improvements, and we will not go into detail about it here.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pulp molding extrusion dewatering device, characterized in that, The device includes a base (1), guide rods (2), top seat (3), movable seat (4), guide sleeves (5), dehydration mold (6), reset spring (7), and extrusion block (8). The four corners of the top of the base (1) are connected to the bottom of a set of guide rods (2), and the tops of the four sets of guide rods (2) are connected to the four corners of the bottom of the top seat (3). The top seat (3) is connected to the top of the extrusion block (8) via a lifting drive mechanism. The four corners of the movable seat (4) are connected to a set of guide sleeves (5). The inner wall of each set of guide sleeves (5) is slidably connected to the outer wall of the guide rod (2) on the same side. The outer side of each set of guide sleeves (5) at the bottom of the movable seat (4) is connected to the top of a set of reset springs (7), and the bottom of each set of reset springs (7) is connected to the outer side of the corresponding guide rod (2) at the top of the base (1). The middle inner side of the movable seat (4) is provided with a dehydration mold (6).

2. The pulp molding extrusion dewatering device according to claim 1, characterized in that: It also includes a guide bucket (9) and a water outlet pipe (10). The bottom of the dewatering mold (6) is connected to the guide bucket (9), and the bottom of the guide bucket (9) is connected to the input side of the water outlet pipe (10).

3. The pulp molding extrusion dewatering device according to claim 1, characterized in that: The lifting drive mechanism includes a reversible motor (11), a threaded rod (12), an internal threaded tube (13), a constraint sleeve (14), and a slide bar (15). The top side of the top seat (3) is connected to the bottom side of the reversible motor (11). The output end of the reversible motor (11) is connected to the top side of the threaded rod (12). The outer wall of the threaded rod (12) is screwed to the inner wall of the internal threaded tube (13). The bottom side of the internal threaded tube (13) is connected to the top side of the extrusion block (8). The top left and right sides of the extrusion block (8) are respectively connected to the bottom side of a set of slide bars (15). The top left and right sides of the top seat (3) are respectively connected to a set of constraint sleeves (14). The inner wall of the constraint sleeve (14) is slidably connected to the outer wall of the slide bar (15) on the same side.

4. The pulp molding extrusion dewatering device according to claim 1, characterized in that: It also includes an oil nozzle (16), and a set of oil nozzles (16) are respectively provided on the front and rear parts of the left and right sides of the movable seat (4). The output end of the oil nozzle (16) is connected to the inner wall of the corresponding guide sleeve (5).

5. The pulp molding extrusion dewatering device according to claim 4, characterized in that: It also includes an oil filling cap (17), and the outer side of each set of oil filling nozzles (16) is detachably installed to the inner side of a set of oil filling caps (17).

6. The pulp molding extrusion dewatering device according to claim 1, characterized in that: It also includes an information board (18), with the left front end of the top seat (3) connected to the inside of the information board (18).

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