Green efficient cold-pressing and hot-pressing integrated paper pulp forming device

Abstract

This invention discloses a green and efficient integrated cold and hot pressing pulp forming device, comprising a raw material tank, a vacuum filtration device, a circulation purification system, an observation window, a closed frame, a machine frame, an eccentric wheel-driven hot pressing forming device, a cam rack and pinion transmission system, and a motor. The closed frame is connected to the ground via anchor bolts to form a sealed working environment. The closed frame has an observation window, and the circulation purification system is installed on the top of the closed frame. The circulation purification system is sealed to the closed frame through an air inlet and an air outlet. The air inlet is located directly above the eccentric wheel-driven hot pressing forming device, and the machine frame is connected to the bottom of the closed frame. The green and efficient integrated cold and hot pressing pulp forming device provided by this invention solves the problem of the large amount of manpower and time required to transfer semi-finished paper blanks from the cold pressing device to the hot pressing device, realizing full automation from pulp to finished product. Furthermore, this invention is characterized by its green and efficient nature.

Description

[0001] Field of study

[0002] This device relates to the field of pulp forming and is a green and efficient integrated cold and hot pressing pulp forming equipment that uses vacuum filtration. Background Technology

[0003] Current pulp forming technology mainly relies on vacuum filtration. However, this method requires transferring the semi-finished wet pulp from the cold pressing unit to the hot pressing unit during production, which consumes a significant amount of manpower and time, greatly impacting production efficiency. Furthermore, the hot pressing process releases polluting gases, contaminating both the ecological and working environments. To address these issues, this invention provides a green and efficient integrated cold and hot pressing pulp forming device that utilizes vacuum filtration technology, can absorb waste gases, boasts high efficiency, and can perform both cold pressing dewatering and hot pressing. Summary of the Invention

[0004] The present invention aims to solve the above problems and provide a green and efficient integrated cold and hot pressing pulp forming device that uses vacuum suction filtration technology, has high working efficiency, and can perform both cold pressing dehydration and hot pressing forming, thus purifying polluted gases.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] This invention relates to a green and efficient integrated cold and hot pressing pulp forming device, comprising a raw material tank, a vacuum filtration device, a circulation purification system, an observation window, a closed frame, a machine frame, an eccentric wheel-driven hot pressing forming device, a cam rack and pinion transmission system, and a motor. The motor drives gear 4 to rotate via a reducer, and gear 4 rotates the cold pressing dewatering roller through gear meshing. Simultaneously, the crank rocker drives the eccentric wheel-driven hot pressing forming device to move up and down reciprocally, and the vacuum filtration device to move left and right reciprocally. The cold pressing dewatering roller is controlled to rotate by the cam rack and pinion transmission system.

[0007] Furthermore, the eccentric wheel-driven hot pressing forming device includes: gear 1, shaft 1, speed-changing gear, internal gear, cold pressing dehydration roller, bearing 1, short shaft 1, ear plate, shaft 3, bearing 2, short shaft 2, hot pressing forming mold mounting boss, hot pressing forming mold, rod 1, shaft 2, eccentric wheel 1, and gear 4; the motor drives gear 4, and the external gear 2 welded to the eccentric wheel 2 meshes with gear 4. Gear 1, eccentric wheel 1, and eccentric wheel 2 are keyed to shaft 1. Gear 1, the speed-changing gear mounted on the frame through sliding bearings, and the internal gear welded to the cold pressing dehydration roller mesh and rotate in sequence. The transmission ratio from gear 1 to the internal gear is 4. When gear 1 rotates one revolution, the cold pressing dehydration roller rotates 90 degrees. Rod 1 and the upper slot 1 form a crank-connecting rod mechanism. When the eccentric wheel 1 rotates one revolution, the crank-connecting rod mechanism completes one cycle of motion, and the hot pressing forming mold moves up and down once. Therefore, when shaft 1 rotates, the hot pressing forming mold moves from the top to the bottom. The cold pressing dewatering roller, which is pressed with the vacuum suction filter mold and has wet blanks, rotates clockwise. When it rotates to the bottom of the hot pressing forming mold, the hot pressing forming mold moves to the bottom of the slot 1 and presses the wet blanks with the cold pressing dewatering mold to further reduce the moisture content of the wet blanks and complete the hot pressing to obtain pulp forming products.

[0008] Further, the vacuum filtration device includes: a vacuum filtration mold, a vacuum filtration mold mounting boss, a vacuum filtration roller, a gear 3, a bearing 3, a shaft 6, a rack, an L-shaped rod, an L-shaped groove, a rod 2, and a groove 2; the vacuum filtration roller has four vacuum filtration mold mounting bosses evenly distributed circumferentially for mounting convex forming molds, and is bolted to the vacuum filtration mold; the vacuum filtration roller is keyed to the shaft 6; the shaft 6 has an interference fit with the inner ring of the bearing; the outer ring of the bearing 3 contacts the lower surface of the groove and has a gap with the upper surface of the groove; the bearing 3 can roll left and right; the gear 3 is welded to the vacuum filtration roller. On the filter roller, the rack is welded to the L rod. When the outer ring of bearing 3 rolls to the left along the groove direction, gear 3 meshes with the rack. During this process, shaft 6 and the inner ring of bearing 3 will rotate counterclockwise as they move horizontally to the left due to the torque transmitted by gear 3. At this time, the vacuum suction filter mold that was originally located below and adsorbed the raw material rotates counterclockwise to the horizontal position. When the outer ring of bearing 3 rolls to the right along the groove direction, gear 3 does not mesh with the rack. During this process, shaft 6 and the inner ring of bearing 3 only move horizontally and do not rotate. The vacuum suction filter mold in the horizontal position moves to the right and contacts the cold pressing dehydration mold to squeeze out the water from the raw material, thus completing the cold pressing.

[0009] Furthermore, the cam rack and pinion transmission system includes a gear 2, a cam, a shaft 5, a cold-pressing dehydration mold, a cold-pressing dehydration mold mounting boss, a rod 2, a shaft 4, an external gear 2, an eccentric wheel 2, a spring, an L-shaped rod, and an L-shaped notch. The shaft 1 and the eccentric wheel 2 are keyed together and rotate coaxially. The eccentric wheel 2, the rod 2, and the notch 2 constitute a crank-rocker mechanism. The vacuum suction roller completes one horizontal reciprocating motion. The external gear 2 welded to the eccentric wheel 2 meshes with the gear 2. The crank-rocker mechanism completes one cycle of motion when the shaft 1 rotates one revolution. The cam welded to the gear 2 rotates one revolution. When the vacuum suction roller moves from the left end to the right end of the notch 2, the large radius circumference of the cam contacts the L-shaped rod, the L-shaped rod compresses the spring, and the rack does not mesh with the gear 3. When the vacuum suction roller moves from the right end to the left end of the notch 2, the small radius circumference of the cam contacts the L-shaped rod, the spring returns to its original position and pushes the L-shaped rod upward, and the rack meshes with the gear 3.

[0010] Furthermore, the frame includes a base, a front plate, and a rear plate. The front and rear plates of the frame have slots 2 for constraining the movement of shaft 1, slots 1 for constraining the movement of hot pressing mold, and shafts for positioning speed-changing gears and cams.

[0011] Furthermore, the enclosed frame is connected to the ground by anchor bolts to form a sealed working environment. The enclosed frame has an observation window for easy observation of the internal machine operation. A circulation purification system is installed on the top of the enclosed frame. The circulation purification system is sealed to the enclosed frame through an air inlet and an air outlet. The air inlet is located directly above the eccentric wheel drive hot pressing forming device. The frame is connected to the bottom of the enclosed frame.

[0012] The equipment operates in a closed working environment with an observation window, allowing real-time monitoring of the internal working conditions. The water vapor released during the hot pressing of the pulp contains polluting gases. In the closed environment, the circulation purification system absorbs and purifies the polluted air through the air inlet, and then discharges the purified fresh air into the closed environment through the air outlet, thus achieving the purpose of purifying the polluting gases generated during the pulp forming process. Attached Figure Description

[0013] Figure 1 This is a front view of the green and efficient cold-pressing and hot-pressing integrated pulp forming equipment of the present invention;

[0014] Figure 2 This is an isometric view of the green and efficient cold-pressing and hot-pressing integrated pulp forming equipment of the present invention;

[0015] Figure 3 This is a rear view of the eccentric wheel-driven hot pressing forming device of the green and efficient cold-pressing and hot-pressing integrated pulp forming equipment of the present invention;

[0016] Figure 4This is a front view of the vacuum suction filter device of the green and efficient cold-pressing and hot-pressing integrated pulp forming equipment of the present invention;

[0017] Figure 5 This is a front view of the cam rack and pinion transmission system of the green and efficient cold-pressing and hot-pressing integrated pulp forming equipment of the present invention;

[0018] Figure 6 This is a front view of the frame of the green and efficient cold-pressing and hot-pressing integrated pulp forming equipment of the present invention;

[0019] Figure 7 This is an isometric view of the cold pressing and dewatering rollers of the green and efficient cold-pressing and hot-pressing integrated pulp forming equipment of the present invention;

[0020] Figure 8 This is an isometric view of the rollers in the green and efficient cold-pressing and hot-pressing integrated pulp forming equipment of the present invention;

[0021] In the figure: 1 Raw material tank, 2 Vacuum suction filter, 3 Circulation purification system, 4 Observation window, 5 Enclosed frame, 6 Frame, 7 Eccentric wheel drive hot pressing forming device, 8 Cam rack and pinion drive system, Motor (9), 701 Gear 1, 702 Shaft 1, 703 Speed ​​change gear, 704 Internal gear, 705 Cold pressing dehydration roller, 706 Bearing 1, 707 Short shaft 1, 708 Ear plate, 709 Shaft 3, 710 Bearing 2, 711 Short shaft 2, 712 Hot pressing forming mold mounting boss, 713 Hot pressing forming mold, 714 Rod 1, 715 Shaft 2, 716 Eccentric wheel 1, 201 Vacuum filter mold, 202 Vacuum filter mold mounting boss, 203 Vacuum filter roller, 204 Gear 3, 205 Bearing 3, 206 Shaft 6, 207 Rack, 208 L rod, 801 Gear 2, 802 Cam, 803 Shaft 5, 804 Cold press dewatering mold, 805 Cold press dewatering mold mounting boss, 806 Rod 2, 807 Shaft 4, 808 External gear 2, 809 Eccentric wheel 2, 810 Gear 4, 811 Spring, 601 Groove 3, 602 Groove 2, 603 L-shaped notch, 604 Hole 1, 605 Groove 1, 606 Hole 2, 607 Hole 3. Detailed Implementation

[0022] The invention will now be further described with reference to the accompanying drawings.

[0023] like Figure 1 , 4As shown in Figure 5, the green and efficient cold-pressing and hot-pressing integrated pulp forming equipment includes a raw material tank (1), a vacuum suction filter device (2), and a cam rack and pinion transmission system (8). When the vacuum suction filter roller (203) is located at the leftmost end of the tank opening 2 (602), the vacuum suction filter mold (201) at the lower end of the vacuum suction filter roller (203) is immersed in the raw material tank (1) and adsorbs a layer of pulp raw material on its surface. The surface of the vacuum suction filter mold (201) at the right end has already adsorbed pulp raw material. Then, the rod 2 (806) pulls the shaft 6 (206) to drive the vacuum suction filter roller (203) (202) (602). 3) Move to the right. During this process, bearing 3 (205) rolls in slot 2 (602). The lower end of the outer ring of bearing 3 (205) contacts slot 2 (602), and there is a gap between the upper end of bearing 3 (205) and slot 2 (602). When the vacuum suction roller (203) moves to the rightmost end, the vacuum suction mold (201) at the right end and the cold pressure dewatering mold (804) at the left end of the cold pressure dewatering roller (705) work together to squeeze the raw material adsorbed on the surface, squeeze out the water of the raw material to form a wet blank, and then demold it into the cold pressure dewatering mold (804). Then the cold-press dehydration roller (705) rotates clockwise, and the eccentric wheel 2 (809) pushes the shaft 1 (702) on the rod 2 (806) to the left, thereby causing the vacuum suction roller (203) to move to the left. At this time, the cam (802) rotates from the large radius circle to the small radius circle, and the spring (811) pushes the L rod (208) to move upward. The rack (207) meshes with the gear 3 (204), so the vacuum suction roller (203) will rotate 90 degrees counterclockwise during the process of moving to the left.

[0024] like Figure 3As shown, the green and efficient cold-pressing and hot-pressing integrated pulp forming equipment includes an eccentric wheel drive hot-pressing forming device (7); a motor (9) drives a gear 4 (810) meshing with an external gear 2 (808); an eccentric wheel 2 (809) welded with an external gear 2 (808) is keyed to a shaft 1 (702); the shaft 1 (702) and the gear 1 (701) are keyed to rotate coaxially; the gear 1 (701), the speed-changing gear (703), and the internal gear (709) are also included. 04) The gears mesh in sequence, and the transmission ratio from gear 1 (701) to internal gear (704) is 4; eccentric wheel 1 (716), rod 1 (714) and shaft 3 (709) form a crank rocker structure. Eccentric wheel 1 (716) and shaft 1 (702) are keyed and rotate coaxially. Therefore, when shaft 1 (702) rotates counterclockwise for one revolution, the cold pressing dehydration roller (705) rotates clockwise by 90 degrees, and the hot pressing forming mold (713) moves up and down once. After the wet blank is demolded onto the cold pressing dehydration roller (705), the shaft 1 (702) rotates counterclockwise, the cold pressing dehydration roller (705) starts to rotate clockwise, and the hot pressing mold (713) starts to move downward; the shaft 1 (702) rotates one revolution, the cold pressing dehydration roller (705) rotates 90 degrees, the wet blank is located directly below the hot pressing mold (713), the hot pressing mold (713) moves to the bottom and contacts the cold pressing dehydration mold (804) to hot press the wet blank, further reducing the moisture content of the wet blank to obtain the finished product demolded onto the cold pressing dehydration mold (804), then the hot pressing mold (713) moves upward, and the cold pressing dehydration roller (705) rotates clockwise to process the next wet blank.

[0025] like Figure 1 As shown, the green and efficient cold-pressing and hot-pressing integrated pulp forming equipment includes a raw material tank (1), a vacuum suction filter (2), a circulation purification system (3), an observation window (4), a closed frame (5), a machine frame (6), an eccentric wheel drive hot-pressing forming device (7), a cam rack and pinion transmission system (8), and a motor (9). The closed frame (5) is connected to the ground by anchor bolts to form a sealed working environment. The closed frame (5) has an observation window (4) which can be used to observe the machine's working status and the amount of raw material in the raw material tank (1). The air inlet of the circulation purification system (3) is located directly above the eccentric wheel drive hot-pressing forming device (7), which can absorb the polluting gas generated during the hot-pressing process. The purified gas is input into the sealed environment through the air outlet of the circulation purification system (3). In the process of efficient production, it can purify polluted air and protect the environment.

[0026] The scope of protection of this invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this invention should be included within the scope of protection of this invention. Therefore, the scope of protection of this invention should be determined by the scope defined in the claims.

Claims

1. A green and efficient integrated cold and hot pressing pulp forming equipment, characterized in that: The system includes a raw material tank (1), a vacuum filtration device (2), a circulating purification system (3), an observation window (4), a closed frame (5), a machine frame (6), an eccentric wheel drive hot pressing forming device (7), a cam rack and pinion drive system (8), and a motor (9). The closed frame (5) is connected to the ground by anchor bolts to form a sealed working environment. The closed frame (5) has an observation window (4). The top of the closed frame (5) is equipped with a circulating purification system (3). The circulating purification system (3) is sealed to the closed frame (5) through an air inlet and an air outlet. The air inlet is located directly above the eccentric wheel drive hot pressing forming device (7). The machine frame (6) is connected to the bottom of the closed frame (5). The eccentric wheel drive hot pressing forming device (7) includes a gear 4 (810) driven by a motor (9) and a reducer, which meshes with an external gear 2 (808) welded to an eccentric wheel 2 (809). A shaft 1 (702) connected to a hole 3 (607) via a sliding bearing is sequentially mounted from front to back with a keyed external gear 2 (808), a cold pressing dehydration roller (705) connected by a sliding bearing, a keyed gear 1 (701), and a keyed eccentric wheel 2 (809). Gear 1 (701) meshes with a speed-changing gear (703). The speed-changing gear (703) mounted on a hole 2 (606) via a sliding bearing meshes with an internal gear (704). The internal gear (704) is welded to the cold pressing dehydration roller (709). 5) On the cold-pressing dehydration roller (705), there are 4 cold-pressing dehydration mold mounting bosses (805). The cold-pressing dehydration mold (804) is mounted on the cold-pressing dehydration mold mounting bosses (805) by bolts. The eccentric wheel 1 (716) is connected to the shaft 1 (702) by a key. The shaft 2 (715) passes through the rod 1 (714) and forms a hinge with the eccentric wheel 1 (716). The other end of the shaft 3 (709) passes through the rod 1 (714) and forms a hinge with the ear plate (708). The bearing 1 (706) is interference-fitted on the short shaft 1 (707). The bearing 2 (710) is interference-fitted on the short shaft 2 (711). The short shaft 2 (711) and the short shaft 1 (707) pass through the hot-pressing forming mold mounting boss (712). The bearing 1 ( 706) and the outer ring of bearing 2 (710) contact the groove 1 (605). The hot pressing mold (713) is bolted to the hot pressing mold mounting boss (712). On the front side of the cold pressing dehydration roller (705), the eccentric wheel 2 (809) is connected to the shaft 1 (702) by a key. The shaft 4 (807) passes through the rod 2 (806) and forms a hinge with the eccentric wheel 2 (809). The external gear 2 (808) is welded to the eccentric wheel 2 (809) and meshes with the gear 2 (801). The shaft 5 (803) is connected to the cam (802) and the gear 2 (801) by a key. The shaft 5 (803) is connected to the hole 1 (604) by a sliding bearing. The L rod (208) slides up and down in the L-shaped notch (603). The cam mechanism is formed by the spring (811) and the cam (802). The rack (207) is welded to the L rod (208) and meshes with the gear 3 (204). The shaft 6 (206) has a hinge rod 2 (806), an interference fit bearing 3 (205), a keyed gear 3 (204), and a vacuum suction roller (203). The vacuum suction roller (203) has four vacuum suction mold mounting bosses (202). The vacuum suction mold (201) is mounted on the vacuum suction mold mounting bosses (202) by bolts. The slot 2 (602) is a stepped slot enlarged from the slot 3 (601). The outer ring of the bearing 3 (205) contacts the slot 2 (602).

2. The green and efficient integrated cold and hot pressing pulp forming equipment as described in claim 1, characterized in that: The number of molds installed on the cold-press dehydration roller (705) and the vacuum suction filter roller (203) can be varied from 4 to 12. By changing the number of teeth and pitch circle diameter of gear 1 (701), speed-changing gear (703), and internal gear (704), the transmission ratio can be changed, and the angle of rotation of the cold-press dehydration roller (705) can be changed by changing the rotation of shaft 1 (702) one revolution. This can increase the number of times the hot-press forming mold (713) contacts the cold-press dehydration roller (705). By changing the shape of cam (802), the meshing time of rack (207) on L rod (208) and gear 3 (204) can be changed, and the angle of rotation of vacuum suction filter roller (203) in one reciprocating motion can be changed.

3. The green and efficient integrated cold and hot pressing pulp forming equipment as described in claim 1, characterized in that: The motor (9) is mounted on the base plate of the frame (6) and its output speed is controlled by a frequency converter. The output shaft of the motor (9) is keyed to a gear 4 (810) that meshes with the external gear 2 (808).

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