Molded pulp microwave drying equipment

Abstract

The utility model discloses paper pulp molding microwave drying equipment, which relates to the technical field of microwave drying equipment and comprises a bottom frame, a conveying belt is arranged at the upper end of the bottom frame, a plurality of microwave drying boxes are fixedly connected to the upper end of the bottom frame, and microwave suppressors are fixedly connected to the upper end of the bottom frame at two ends of the microwave drying boxes. A supporting frame is fixedly connected to the outer side wall of the microwave drying box, a top cylinder is fixedly connected to the upper end of the supporting frame, a guide rod is arranged in the top cylinder, and a blocking mechanism is arranged at the end, located in the microwave drying box, of the guide rod; the utility model discloses paper pulp molding microwave drying equipment. Through the arrangement of the top cylinder, the guide rod and the blocking mechanism arranged on the guide rod, when the molded pulp is conveyed on the conveying belt, the molded pulp is blocked through the blocking rod along with the movement of the guide rod, then the microwave drying time is prolonged, the sufficient drying effect is achieved, and through the distribution of a heat insulation cover and heat dissipation holes, the drying efficiency is improved. And the cold shrinkage range of paper pulp molding can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of microwave drying equipment, in particular to a microwave drying equipment for pulp molding. Background Technique

[0002] Microwave drying equipment makes the water molecules on the material move at high speed through microwaves. When the water molecules move, friction is generated, and then heat energy is generated by the friction. The generated heat evaporates the water molecules, thereby achieving the effect of evaporation and drying. When drying pulp molding, the pulp molding is transported to the lower end of the microwave drying box through a conveyor belt for drying while moving.

[0003] However, the shapes of pulp moldings are diverse, and two different pulp moldings cannot be dried at the same speed. The differences between pulp moldings affect the drying effect. Different pulp moldings have different numbers and depths of bends. As a result, the water molecules at the bends are difficult to volatilize. Although the conveyor belt can adjust the speed, the pulp molding is constantly moving, so it cannot reach the position where the strongest microwaves are received, and thus the drying effect cannot be fully achieved. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a microwave drying equipment for pulp molding, which solves the problems raised in the above background technique.

[0005] To achieve the above purposes, the utility model is realized through the following technical solutions: A microwave drying equipment for pulp molding, including a chassis, a conveyor belt is arranged at the upper end of the chassis, several microwave drying boxes are fixedly connected to the upper end of the chassis, microwave suppressors are fixedly connected to the upper end of the chassis at both ends of the microwave drying box, a support frame is fixedly connected to the outer side wall of the microwave drying box, a top cylinder is fixedly connected to the upper end of the support frame, a guide rod is arranged inside the top cylinder, a partition mechanism is arranged at the end of the guide rod inside the microwave drying box, a strip-shaped through hole is opened on the side wall of the microwave drying box, and the partition mechanism moves along with the guide rod and is arranged to match the strip-shaped through hole.

[0006] Further, the partition mechanism includes: a fixed clamp, the fixed clamp is arranged at the end of the guide rod, the opening and closing end of the fixed clamp is fixedly arranged through a fixed screw, a connecting plate is fixedly connected to the lower end of the fixed clamp, the connecting plate is arranged to match the strip-shaped through hole, and a blocking rod is connected to the side end of the connecting plate.

[0007] Further, an adjustment hole is opened on the connecting plate, a connecting card is clamped at the side end of the connecting plate, a bolt is passed through the connecting card, the blocking rod is fixedly connected to the connecting card, the distance between both ends of the connecting card is smaller than the inner distance of the strip-shaped through hole, and both ends of the bolt are arranged at the inner side end of the connecting card.

[0008] Furthermore, a heat insulation cover is fixedly connected to the chassis at the outer end of the microwave suppressor, and a plurality of heat dissipation holes are formed in the heat insulation cover.

[0009] Furthermore, the upper end of the support frame is fixedly connected with a protective frame, and the protective frame is arranged in a cross shape.

[0010] Furthermore, the spacing between several of the heat dissipation holes is gradually changed, and the spacing between the heat dissipation holes near one end of the microwave suppressor is greater than the spacing between the heat dissipation holes far from the microwave suppressor.

[0011] Compared with the above background art, the pulp molding microwave drying equipment provided by the present application includes a microwave drying box with very mature technology nowadays, and a top rod and a baffle mechanism as the core components. Its principle relies on driving a stop rod through a top cylinder to stop the pulp molding on the moving conveyor belt, thereby increasing the drying time. According to the shape and size of different pulp moldings, the blocking time can be adjusted, so as to achieve a more sufficient drying effect.

[0012] The utility model provides a pulp molding microwave drying equipment. Compared with the prior art, it has the following beneficial effects:

[0013] For the pulp molding microwave drying equipment; by setting a top cylinder and a guide rod, and a baffle mechanism arranged on the guide rod, when the pulp molding is transported on the conveyor belt, the pulp molding is blocked by the stop rod moving along with the guide rod, thereby prolonging the microwave drying time and achieving a sufficient drying effect. Moreover, through the distribution of the heat insulation cover and the heat dissipation holes, the cold shrinkage range of the pulp molding can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the whole of the utility model;

[0015] Figure 2 is a schematic structural diagram of the top cylinder and the heat insulation cover of the utility model;

[0016] Figure 3 is a schematic structural diagram of the distribution of the heat insulation cover and the heat dissipation holes of the utility model;

[0017] Figure 4 is Figure 2 an enlarged structural diagram of part A in

[0018] Figure 5 is Figure 3 an enlarged structural diagram of part B in

[0019] In the figure: 1, chassis; 2, conveyor belt; 3, microwave drying oven; 4, microwave suppressor; 5, support frame; 6, top cylinder; 7, guide rod; 8, fixed clamp; 9, connecting plate; 10, adjustment hole; 11, connecting card; 12, stop rod; 13, strip-shaped perforation; 14, protective frame; 15, heat insulation cover; 16, heat dissipation hole. Detailed implementation manner

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1-5 , the present invention provides a technical solution: a pulp molding microwave drying device, including a chassis 1, a conveyor belt 2 is arranged at the upper end of the chassis 1, a plurality of microwave drying ovens 3 are fixedly connected to the upper end of the chassis 1, and microwave suppressors 4 are fixedly connected to the upper end of the chassis 1 at both ends of the microwave drying oven 3. A support frame 5 is fixedly connected to the outer side wall of the microwave drying oven 3, a top cylinder 6 is fixedly connected to the upper end of the support frame 5, a guide rod 7 is arranged in the top cylinder 6, and a blocking mechanism is arranged at the end of the guide rod 7 located inside the microwave drying oven 3. A strip-shaped perforation 13 is formed in the side wall of the microwave drying oven 3. The blocking mechanism moves along with the guide rod 7 and is arranged to match the strip-shaped perforation 13; the pulp molding is placed on the conveyor belt 2 and transported to the inside of the microwave drying oven 3 through the conveyor belt 2. Through the action of microwaves, the water molecules on the pulp molding generate mutual friction, thereby generating heat energy. The heat generated by friction causes the water molecules to evaporate, thereby achieving the drying effect. Driven by the conveyor belt 2, the pulp molding moves while being dried until it reaches the other end of the conveyor belt 2. For pulp moldings with simple shapes, a better drying effect can be achieved. However, for pulp moldings with various shapes and many bends, it is difficult for water molecules to volatilize inside, resulting in a decline in the drying effect. Therefore, through the action of the top cylinder 6 and the guide rod 7, the top cylinder 6 pushes out the guide rod 7 to drive the internal blocking mechanism to block and stop the moving pulp molding, so that the pulp molding can fully achieve the effects of drying and water molecule volatilization inside. The top cylinder 6 and the guide rod 7 are distributed outside each microwave drying oven 3, which can not only extend the drying time, but also neatly arrange the pulp moldings at the discharge port. Moreover, the telescopic time of the top cylinder 6 and the guide rod 7 can be adjusted, and thus the time can be adjusted to increase or decrease according to the complexity of the shape of the pulp molding.

[0022] Such as Figure 5As shown in the figure, the partition mechanism includes: a fixed clamp 8, which is arranged at the end of the guide rod 7. The opening and closing end of the fixed clamp 8 is fixedly arranged through a fixing screw. A connecting plate 9 is fixedly connected to the lower end of the fixed clamp 8. The connecting plate 9 is arranged to match the strip-shaped perforation 13. A blocking rod 12 is connected to the side end of the connecting plate 9. The fixed clamp 8 is clamped at the end of the guide rod 7 through the fixing screw. A connecting plate 9 is fixedly connected to the lower end of the fixed clamp 8. The connecting plate 9 is L-shaped. A blocking rod 12 is fixed on the side wall of the lower end. The blocking rod 12 can partition the pulp molding moving along with the conveyor belt 2. Thus, the fixed clamp 8 moves along with the movement of the guide rod 7, driving the connecting plate 9 and the guide rod 7 to move. When the guide rod 7 retracts into the top cylinder 6, a part of the blocking rod 12 and the connecting plate 9 passes through the strip-shaped perforation 13 and moves to the outside of the microwave drying oven 3.

[0023] As Figure 5 shown in the figure, an adjustment hole 10 is formed on the connecting plate 9. A connecting clamp 11 is clamped at the side end of the connecting plate 9. A bolt is passed through the connecting clamp 11. The blocking rod 12 is fixedly connected to the connecting clamp 11. The distance between the two ends of the connecting clamp 11 is set to be smaller than the inner distance of the strip-shaped perforation 13, and the two ends of the bolt are arranged at the inner ends of the connecting clamp 11. The end of the blocking rod 12 is fixedly connected to the connecting clamp 11. The connecting clamp 11 is located at the position of the adjustment hole 10 on the side of the connecting plate 9. In this way, the connecting clamp 11 can be clamped on the side of the connecting plate 9 through the bolt. This design is to be able to adjust according to the height of the pulp molding, and thus be able to adjust the center of gravity position where the blocking rod 12 blocks the pulp molding, avoiding the pulp molding from rolling when being blocked.

[0024] As Figure 3 shown in the figure, a heat insulation cover 15 is fixedly connected to the chassis 1 at the outer end of the microwave suppressor 4. A number of heat dissipation holes 16 are formed on the heat insulation cover 15. The pulp molding has a certain resilience and will expand to a certain extent under the action of the high temperature formed inside the microwave drying oven 3. When the pulp molding moves to the outside of the microwave drying oven 3, the temperature of the air drops suddenly, which will cause the pulp molding to shrink rapidly, and then cause the change of the designed size inside the mold, affecting the later use. Thus, the heat insulation cover 15 arranged at the upper end of the chassis 1 prolongs the contact between the pulp molding and the air, and through the heat dissipation holes 16, the pulp molding can contact the air slowly, reducing the range of cold shrinkage of the pulp molding.

[0025] As Figure 3 shown in the figure, a protective frame 14 is fixedly connected to the upper end of the support frame 5. The protective frame 14 is arranged in a cross shape. Since the top cylinder 6 and the guide rod 7 have a certain speed when telescoping back and forth, the cross-shaped protective frame 14 arranged outside is used to prevent the operator from touching the blocking rod 12 moving back and forth, avoiding danger.

[0026] As Figure 3As shown, the spacing between several heat dissipation holes 16 is set to be gradually variable, and the spacing between the heat dissipation holes 16 near one end of the microwave suppressor 4 is greater than the spacing between the heat dissipation holes 16 far from the microwave suppressor 4. It can be seen from the figure that the heat dissipation holes 16 are set in a gradually variable manner. In this way, the heat of the pulp molding just out of the microwave drying oven 3 is relatively large, and there are fewer nearby heat dissipation holes 16, which can effectively reduce the heat dissipation. As it moves, the heat dissipation holes 16 gradually increase, thereby slowly dissipating the surface heat and reducing the range of cold shrinkage.

[0027] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments by using the disclosed technical content within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A pulp molding microwave drying device, comprising a base frame (1), a conveyor belt (2) is arranged at the upper end of the base frame (1), a plurality of microwave drying boxes (3) are fixedly connected to the upper end of the base frame (1), and microwave suppressors (4) are fixedly connected to the upper ends of the base frame (1) at both ends of the microwave drying boxes (3), characterized in that: The outer wall of the microwave drying box (3) is fixedly connected to a support frame (5), the upper end of the support frame (5) is fixedly connected to a top cylinder (6), a guide rod (7) is arranged in the top cylinder (6), and a blocking mechanism is arranged at the end of the guide rod (7) in the microwave drying box (3), and a strip-shaped through hole (13) is opened on the side wall of the microwave drying box (3), and the blocking mechanism moves with the guide rod (7) and is arranged to match the strip-shaped through hole (13).

2. A pulp molding microwave drying equipment according to claim 1, characterized in that: The blocking mechanism comprises: A fixing clamp (8), the fixing clamp (8) is arranged at the end of the guide rod (7), the opening and closing ends of the fixing clamp (8) are fixed by fixing screws, the lower end of the fixing clamp (8) is fixedly connected to a connecting plate (9), the connecting plate (9) is matched with the strip-shaped through hole (13), and the side end of the connecting plate (9) is connected to a blocking rod (12).

3. A pulp molding microwave drying equipment according to claim 2, characterized in that: The connecting plate (9) is provided with an adjustment hole (10), the side end of the connecting plate (9) is clamped with a connecting card (11), a bolt is passed through the connecting card (11), the blocking rod (12) is fixedly connected to the connecting card (11), the distance between the two ends of the connecting card (11) is smaller than the inner side distance of the strip through hole (13), and the two ends of the bolt are located at the inner side end of the connecting card (11).

4. The pulp molding microwave drying equipment according to claim 2, characterized in that: A heat-insulating cover (15) is fixedly connected to the base frame (1) at the outer end of the microwave suppressor (4), and a plurality of heat-dissipating holes (16) are provided on the heat-insulating cover (15).

5. The pulp molding microwave drying equipment according to claim 2, characterized in that: The upper end of the support frame (5) is fixedly connected to a protection frame (14), and the protection frames (14) are cross-arranged.

6. The pulp molding microwave drying equipment according to claim 4, characterized in that: The spacing between the heat dissipation holes (16) is gradually arranged, and the spacing between the heat dissipation holes (16) close to one end of the microwave suppressor (4) is greater than the spacing between the heat dissipation holes (16) far from the microwave suppressor (4).

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