An extrusion die

Abstract

The present invention discloses an extrusion die, comprising a base and a hydraulic rod, wherein the hydraulic rod is provided at the top of the base; further comprising: a push rod fixed to the bottom of the hydraulic rod by screws, the push rods sliding on both sides on the base, an upper die embedded in the push rods, a lower die embedded at the top of the base, a shift rod sliding inside the lower die, the shift rod and the opening inside the lower die being sealed and fitted together, a first rack sliding inside the lower die, a slot being provided on the side of the upper die; a gear meshing with the outer side of the first rack, the middle part of the gear being keyed to a rotating rod, and the rotating rod rotating inside the lower die. The extrusion die is equipped with an upper die, and the movement of the upper die can squeeze the shift rod, thereby causing the upper die to squeeze the pulp and discharge water from the side of the lower die, thereby avoiding the unevenness of the pulp during subsequent drying, thereby improving the quality of the paper.

Description

Technical Field

[0001] The invention relates to the technical field of molds, in particular to an extrusion mold. Background Art

[0002] In the process of making paper, in order to make the paper into the required type, it will be used through the use of molds. Through the extrusion of the mold, the pulp can be formed into a thin film, and then the pulp can be formed into paper in the subsequent drying;

[0003] Reference publication number CN113005808B discloses a pulp squeezing papermaking device. During the pulping operation, the lowest squeezing block in the middle first contacts the pulp on the screen plate. As the lifting frame continues to move downward, the squeezing blocks on both sides sequentially contact the pulp on the screen plate from the inside to the outside. Excess pulp on the screen plate is pushed from the center to the left and right sides. At this time, the screen plate is pushed to the bottom of the drainage trough, and the excess pulp is discharged through the drainage trough to obtain smooth paper of uniform thickness, thereby improving papermaking quality. However, the following problems still exist:

[0004] In actual use of the above device, although the screen plate plays a role in filtering water, the surface of the screen plate has small openings, which may cause the squeezing block to push the pulp into the small holes in the screen plate when squeezing the pulp, causing the pulp to become uneven during subsequent drying, thereby reducing the quality of the paper.

[0005] Reference publication number CN217601081U discloses a pulp collecting device for papermaking, which can squeeze papermaking raw materials by cooperating with a driving motor, a support plate, a bidirectional screw, a moving block and a hinged rod, so that the liquid and residue in the papermaking raw materials can be separated, thereby obtaining the raw pulp required for papermaking. At the same time, such an extrusion method can push out the residue after extrusion, which is convenient for workers to quickly remove the residue. When the extrusion plate moves to the upper side, it is convenient for manual cleaning of the extrusion plate. Then, by cooperating with the U-shaped cover, the telescopic box, the telescopic rod and the limit block, the U-shaped cover can be quickly disassembled. Such a setting is convenient for manual operation and can effectively improve the efficiency of pulp collection. However, the following problems still exist:

[0006] In the actual use of the above-mentioned device, although the raw pulp is squeezed by extrusion, the raw pulp will spread due to the action of force during extrusion, and the raw pulp will become an irregular circle after extrusion, which will require additional cutting later, resulting in low processing efficiency.

[0007] Therefore, we propose an extrusion die to solve the above problems. Summary of the Invention

[0008] The purpose of the present invention is to provide an extrusion die to solve the problem proposed in the above background technology that the surface of the screen plate on the current market is provided with small openings, which may cause the extrusion block to push the pulp into the small holes in the screen plate when extruding the pulp, thereby causing the pulp to become uneven during subsequent drying, thereby reducing the quality of the paper and causing the original pulp to diffuse due to the action of force, thereby causing the original pulp to become an irregular circle after extrusion, thereby requiring additional cutting, thereby resulting in low processing efficiency.

[0009] To achieve the above object, the present invention provides the following technical solution: an extrusion die, comprising a base and a hydraulic rod, wherein the hydraulic rod is provided on the top of the base;

[0010] Also includes:

[0011] A push rod is fixed to the bottom of the hydraulic rod by screws, and both sides of the push rod slide on the base, and an upper mold is embedded in the interior of the push rod, and a lower mold is embedded in the top of the base. A shift rod slides inside the lower mold, and the shift rod and the opening inside the lower mold are sealed and fitted with each other, a first rack slides inside the lower mold, and a card slot is opened on the side of the upper mold.

[0012] Preferably, a gear is engaged on the outer side of the first rack, and the middle key of the gear is connected to the rotating rod, the rotating rod rotates inside the lower mold, and the front end of the rotating rod is nested with a first spring, and the front end of the first spring is connected to the inside of the lower mold, the outer end of the gear is engaged with a second rack, the second rack slides inside the lower mold, and a blade is installed at the bottom of the second rack.

[0013] Through the above structural arrangement, the blade can cut the paper.

[0014] Preferably, a clamping block is rotatably provided at the bottom of the first rack, and an outer end of the clamping block is connected to a second spring, and an outer end of the second spring is connected to the inside of the first rack.

[0015] Through the above structural arrangement, the second spring can play a role of limiting.

[0016] Preferably, the outer end of the clamping block is connected to a first pull rope, and the bottom end of the first pull rope is wound around a winding roller through a pulley, and the length of the first pull rope is less than the length that the first rack can move, and the winding roller rotates inside the lower mold, and the front end of the winding roller is connected to a third spring, and the front end of the third spring is connected to the inside of the lower mold.

[0017] Through the above structural arrangement, the third spring can play a limiting role.

[0018] Preferably, the bottom of the shift rod is connected to a fourth spring, and the bottom of the fourth spring is connected to the inside of the lower mold, and the side of the bottom of the shift rod is connected to a second pull rope, and the outer end of the second pull rope is connected to the slider through a pulley.

[0019] Through the above-mentioned structural arrangement, the movement of the shift rod can drive the slider to move via the second pull rope.

[0020] Preferably, the slider slides inside the lower mold, and the inner end of the slider is connected to a fifth spring, and the inner end of the fifth spring is connected to the inside of the lower mold.

[0021] Through the above structural arrangement, the fifth spring can play a role of limiting.

[0022] Preferably, a top plate slides on the top of the slider, and the bottom of the top plate is connected to an elastic spring, the bottom of the elastic spring is connected to the inside of the slider, and the bottom of the top plate is connected to a third pull rope, and the bottom of the third pull rope extends out of the inside of the slider through a pulley and is connected to the inside of the lower mold.

[0023] Preferably, a top block is slidably provided on the outer end of the blade, and the outer end of the top block is arranged in an arc shape, and the outer end of the top block extends into the interior of the groove, and the groove is opened inside the second rack.

[0024] Through the above structural arrangement, the top block can be moved after being squeezed by force.

[0025] Preferably, the inner end of the top block is connected to a sixth spring, and the inner end of the sixth spring is connected to the interior of the blade.

[0026] Through the above structural arrangement, the sixth spring can limit the top block.

[0027] Compared with the prior art, the beneficial effects of the present invention are: the extrusion die improves the processing quality and can cut and take paper easily; the extrusion of the upper die can pass through the extrusion transfer rod, and then the water is discharged after the extrusion of the transfer rod, thereby improving the quality of paper processing; the movement of the blade can cut the excess raw pulp, thereby facilitating subsequent processing; and the movement of the transfer rod can drive the raw pulp to rise, thereby facilitating taking. The specific contents are as follows:

[0028] (1) An upper mold is provided, and the movement of the upper mold can squeeze the transfer rod, so that the upper mold squeezes the pulp and discharges water from the side of the lower mold, thereby avoiding the unevenness of the pulp during subsequent drying, thereby improving the quality of the paper;

[0029] (2) A blade is provided, which drives the first rack to move by the movement of the upper mold, and then the first rack moves and drives the second rack to rotate through the gear, and then the second rack rotates and drives the blade to move, and then the blade moves to cut the raw pulp, thereby facilitating the subsequent processing of the raw pulp;

[0030] (3) A shift rod is provided. When the upper mold does not squeeze the shift rod, the fourth spring pushes the shift rod to move, and the shift rod moves to push out the raw paste, making it easier to take it out. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the cross-sectional structure of the present invention;

[0032] Figure 2 For the present invention Figure 1 Middle A is a schematic diagram of the enlarged structure;

[0033] Figure 3 This is a schematic diagram of the front cross-section structure of the winding roller of the present invention;

[0034] Figure 4 This is a schematic diagram of the front cross-sectional structure of the first spring of the present invention;

[0035] Figure 5 This is a schematic diagram of the front cross-section structure of the card slot of the present invention;

[0036] Figure 6 This is a schematic diagram of the front cross-section structure of the slider of the present invention;

[0037] Figure 7 This is a schematic diagram of the front cross-section structure of the shift rod of the present invention;

[0038] Figure 8 It is a schematic diagram of the front cross-section structure of the top block of the present invention.

[0039] In the figure: 1. Base; 2. Hydraulic rod; 3. Push rod; 4. Upper mold; 5. Lower mold; 6. First rack; 7. Gear; 8. Rotating rod; 9. First spring; 10. Second rack; 11. Blade; 12. Block; 13. Second spring; 14. First pull rope; 15. Winding roller; 16. Third spring; 17. Slot; 18. Shift rod; 19. Fourth spring; 20. Second pull rope; 21. Slider; 22. Fifth spring; 23. Top plate; 24. Elastic spring; 25. Third pull rope; 26. Top block; 27. Groove; 28. Sixth spring. DETAILED DESCRIPTION

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0041] See also Figures 1-8 The present invention provides a technical solution: an extrusion mold, comprising a base 1 and a hydraulic rod 2, a hydraulic rod 2 is provided on the top of the base 1; it also includes: a push rod 3 is fixed to the bottom of the hydraulic rod 2 by screws, the push rod 3 slides on the base 1 on both sides, and an upper mold 4 is inlaid inside the push rod 3, and a lower mold 5 is inlaid on the top of the base 1, a shift rod 18 slides inside the lower mold 5, and the shift rod 18 and the opening inside the lower mold 5 are sealed and fitted with each other, a first rack 6 slides inside the lower mold 5, a card slot 17 is provided on the side of the upper mold 4, a gear 7 is meshed on the outer side of the first rack 6, and the middle part of the gear 7 is keyed to the rotating rod 8, the rotating rod 8 rotates inside the lower mold 5, and a first spring 9 is nested at the front end of the rotating rod 8, and the front end of the first spring 9 is connected to the inside of the lower mold 5, the outer end of the gear 7 is meshed with a second rack 10, the second rack 10 slides inside the lower mold 5, and the second rack 10 slides inside the lower mold 5, and the second rack A blade 11 is installed at the bottom of the strip 10, and a block 12 is rotated at the bottom of the first rack 6, and the outer end of the block 12 is connected to the second spring 13, and the outer end of the second spring 13 is connected to the inside of the first rack 6, the outer end of the block 12 is connected to the first pull rope 14, and the bottom end of the first pull rope 14 is wound around the winding roller 15 through a pulley, and the length of the first pull rope 14 is less than the movable length of the first rack 6, the winding roller 15 rotates inside the lower mold 5, and the front end of the winding roller 15 is connected to the third spring 16, and the front end of the third spring 16 is connected to the inside of the lower mold 5, the outer end of the blade 11 slides with a top block 26, and the outer end of the top block 26 is arranged in an arc shape, and the outer end of the top block 26 extends into the inside of the groove 27, and the groove 27 is opened inside the second rack 10, the inner end of the top block 26 is connected to the sixth spring 28, and the inner end of the sixth spring 28 is connected to the inside of the blade 11;

[0042] refer to Figures 1 to 5, the raw pulp is placed on the shift rod 18, and then the hydraulic rod 2 drives the push rod 3 to move, and then the push rod 3 moves to drive the upper mold 4 to move, so that the upper mold 4 moves to squeeze the shift rod 18, so that the shift rod 18 drives the raw pulp to move inside the lower mold 5, and then the water in the raw pulp is squeezed out by the squeezing of the upper mold 4, so that the water is discharged from the side of the lower mold 5, and after the upper mold 4 moves to the position, the slot 17 is engaged with the rotating rod 8, and then the extrusion is completed, the slot 17 is driven by the movement of the upper mold 4 to move, and then the slot 17 moves through the rotating rod 8 to drive the first rack 6 to move, and then the first rack 6 moves to drive the gear 7 to rotate, and then the gear 7 rotates to drive the rotating rod 8 to rotate, so that the rotating rod 8 rotates to squeeze the first spring 9, so that the first spring 9 is compressed, and the gear 7 rotates to drive the second rack 10 to move, and then the second rack 10 moves to drive the blade 11 to move, so that the blade 11 moves to cut the raw pulp, Thereby, the raw pulp can be regularized, and then the first rack 6 moves to drive the first pull rope 14 to move, so that the first pull rope 14 moves to drive the winding roller 15 to move, so that the winding roller 15 moves to drive the third spring 16 to be compressed, and then after reaching the position, the first pull rope 14 drives the card block 12 to rotate, so that the card block 12 rotates to the inside of the first rack 6 for storage, so that the card block 12 rotates to squeeze the second spring 13, and then the second spring 13 is compressed, and then The card block 12 is disengaged from the card slot 17, so that the first rack 6 and the second rack 10 are reset by the force of the first spring 9, and the blade 11 is pulled, and then the blade 11 moves and drives the top block 26 to move, so that the top block 26 moves toward the inside of the blade 11, so that the top block 26 is disengaged from the groove 27, and the movement of the top block 26 squeezes the sixth spring 28, so that the sixth spring 28 is compressed, and the blade 11 can be quickly replaced;

[0043] The bottom of the shift rod 18 is connected to a fourth spring 19, and the bottom of the fourth spring 19 is connected to the inside of the lower mold 5, and the side of the bottom of the shift rod 18 is connected to a second pull rope 20, the outer end of the second pull rope 20 is connected to a slider 21 through a pulley, the slider 21 slides inside the lower mold 5, and the inner end of the slider 21 is connected to a fifth spring 22, and the inner end of the fifth spring 22 is connected to the inside of the lower mold 5, a top plate 23 slides on the top of the slider 21, and the bottom of the top plate 23 is connected to an elastic spring 24, the bottom of the elastic spring 24 is connected to the inside of the slider 21, and the bottom of the top plate 23 is connected to a third pull rope 25, the bottom of the third pull rope 25 extends through the pulley to the inside of the slider 21 and is connected to the inside of the lower mold 5;

[0044] refer to Figure 1 、 Figures 6 to 8 The shift rod 18 is squeezed and drives the fourth spring 19 to compress, so that the fourth spring 19 accumulates force, and then the shift rod 18 moves to drive the second pull rope 20 to move, so that the second pull rope 20 moves through the roller to drive the slider 21 to move, so that the slider 21 moves to squeeze the fifth spring 22, so that the fifth spring 22 is compressed, and then the slider 21 moves to drive the third pull rope 25, so that the third pull rope 25 moves through the pulley to drive the top plate 23 to move, and then the top plate 23 can be stored inside the slider 21. , and the movement of the top plate 23 will squeeze the elastic spring 24, so that the elastic spring 24 is compressed. When the shift rod 18 pushes out the raw pulp, the excess raw pulp will be retained inside the lower mold 5, and then the slider 21 is pushed to reset by the force of the fifth spring 22, and then the slider 21 moves to release the third pull rope 25, so that the elastic spring 24 pushes the top plate 23 to rise, so that the top plate 23 can drive the raw pulp to move through the movement of the slider 21, so that the excess raw pulp can be discharged from the interior of the lower mold 5, thereby completing a series of tasks.

[0045] Working principle of this embodiment: When using this extrusion die, first, refer to Figures 1 to 5 , place the raw pulp on the shift rod 18, and then use the hydraulic rod 2 to drive the push rod 3 to move, so that the upper mold 4 moves to squeeze the shift rod 18, so that the shift rod 18 drives the raw pulp to move inside the lower mold 5, and then the water in the raw pulp is squeezed out by the squeezing of the upper mold 4, so that the water is discharged from the side of the lower mold 5, and then after the extrusion is completed, the movement of the upper mold 4 drives the card slot 17 to move, and the gear 7 rotates to drive the second rack 10 to move, so that the blade 11 moves to cut the raw pulp, so that the raw pulp can be regular, and then the first rack 6 moves and drives the first pull rope 14 to move, thereby causing the first pull rope 14 to move and drive the winding roller 15 to move, thereby causing the winding roller 15 to move and drive the third spring 16 to be compressed, and then after reaching the position, the first pull rope 14 drives the clamping block 12 to rotate, thereby causing the clamping block 12 to rotate toward the inside of the first rack 6 for storage, thereby driving the first rack 6 and the second rack 10 to reset through the force of the first spring 9, and pulling the blade 11, thereby causing the top block 26 to disengage from the groove 27, and then allowing the blade 11 to be quickly replaced;

[0046] refer to Figure 1 、 Figures 6 to 8, the shift rod 18 is squeezed and drives the fourth spring 19 to be compressed, so that the fourth spring 19 accumulates force, and then the shift rod 18 moves and drives the second pull rope 20 to move, so that the second pull rope 20 moves and drives the slider 21 to move through the roller, so that the slider 21 moves to squeeze the fifth spring 22, so that the fifth spring 22 is compressed, and then the slider 21 moves and drives the third pull rope 25, so that the third pull rope 25 moves and drives the top plate 23 to move through the pulley. When the shift rod 18 ejects the raw pulp, the excess raw pulp will be retained inside the lower mold 5, and then the slider 21 is reset by the force of the fifth spring 22, so that the top plate 23 can drive the raw pulp to move through the movement of the slider 21, so that the excess raw pulp can be discharged from the interior of the lower mold 5, thereby completing a series of work.

[0047] In the description of the present invention, unless otherwise specified, "plurality" means two or more; terms such as "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," and "tail" indicate positions or relationships based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, terms such as "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0048] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0049] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An extrusion die, comprising a base (1) and a hydraulic rod (2), wherein the hydraulic rod (2) is provided on the top of the base (1); It is characterized by: Also includes: The bottom of the hydraulic rod (2) is fixed with a push rod (3) by screws, and the push rod (3) slides on the base (1) on both sides, and the push rod (3) is embedded with an upper mold (4), and the top of the base (1) is embedded with a lower mold (5), and a shift rod (18) slides inside the lower mold (5), and the shift rod (18) and the opening inside the lower mold (5) are sealed and fitted with each other, and a first rack (6) slides inside the lower mold (5), and a slot (17) is opened on the side of the upper mold (4); The outer side of the first rack (6) is engaged with a gear (7), and the middle key of the gear (7) is connected to the rotating rod (8), the rotating rod (8) rotates inside the lower mold (5), and the front end of the rotating rod (8) is embedded with a first spring (9), and the front end of the first spring (9) is connected to the inside of the lower mold (5), the outer end of the gear (7) is engaged with a second rack (10), the second rack (10) slides inside the lower mold (5), and a blade (11) is installed at the bottom of the second rack (10); A clamping block (12) is rotatably provided at the bottom of the first rack (6), and the outer end of the clamping block (12) is connected to a second spring (13), and the outer end of the second spring (13) is connected to the inside of the first rack (6); The outer end of the clamping block (12) is connected to a first pull rope (14), and the bottom end of the first pull rope (14) is wound on a winding roller (15) through a pulley, and the length of the first pull rope (14) is less than the movable length of the first rack (6), and the winding roller (15) rotates inside the lower mold (5), and the front end of the winding roller (15) is connected to a third spring (16), and the front end of the third spring (16) is connected to the inside of the lower mold (5); The bottom of the shift rod (18) is connected to a fourth spring (19), and the bottom of the fourth spring (19) is connected to the inside of the lower mold (5), and the side of the bottom of the shift rod (18) is connected to a second pull rope (20), and the outer end of the second pull rope (20) is connected to the slider (21) through a pulley; The slider (21) slides inside the lower mold (5), and the inner end of the slider (21) is connected to the fifth spring (22), and the inner end of the fifth spring (22) is connected to the inside of the lower mold (5); A top plate (23) slides on the top of the slider (21), and an elastic spring (24) is connected to the bottom of the top plate (23). The bottom of the elastic spring is connected to the inside of the slider (21), and the bottom of the top plate (23) is connected to a third pull rope (25). The bottom of the third pull rope (25) extends out of the inside of the slider (21) through a pulley and is connected to the inside of the lower mold (5).

2. An extrusion die according to claim 1, characterized in that: A top block (26) is slidably mounted on the outer end of the blade (11), and the outer end of the top block (26) is arranged in an arc shape and extends into the interior of a groove (27). The groove (27) is provided inside the second rack (10).

3. An extrusion die according to claim 2, characterized in that: The inner end of the top block (26) is connected to a sixth spring (28), and the inner end of the sixth spring (28) is connected to the interior of the blade (11).

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