A dryer with a material conveying device

Abstract

The utility model relates to drying -machine technical field discloses a kind of drying machines with material conveying device, comprising: rack, vacuum hopper and heater, the inside of the rack is fixed with drying barrel, the top of the drying barrel is equipped with magnetic spring hopper, the bottom end of the drying barrel is equipped with material intercepting valve, one side of the rack bottom is equipped with air pump, the air pump air inlet end is equipped with filter, one side of the rack top is equipped with electric appliance box and heater, one side of the rack top is fixed with switching valve, when the negative pressure generated by air pump is transmitted to magnetic spring hopper by switching valve, suction force is formed in negative pressure feeding pipe, material in raw material barrel is sucked into magnetic spring hopper, and then falls into drying barrel. Realize the automation of raw material from raw material barrel to drying barrel, the integrated feeding structure does not need to be additionally configured independent feeding equipment, further reduce equipment occupied space, avoid material pollution or spilling caused by artificial feeding simultaneously, improve the cleanliness and efficiency of production.

Description

Technical Field

[0001] This utility model relates to the field of dryer technology, specifically a dryer with a material conveying device. Background Technology

[0002] In the field of material production and processing, especially in injection molding, material transportation and drying are two key processes. Among them, pneumatic conveying technology achieves efficient transportation of solid materials through airflow pressure difference, and is widely used due to its advantages of stable transportation and low pollution; dryers, as the core drying equipment, are used to remove moisture from materials to ensure the quality of subsequent processed products.

[0003] In existing technologies, material transportation and drying functions are achieved by separate pneumatic conveying equipment and drying equipment, which need to be used together to complete the connection between the transportation and drying processes. Specifically, during production, the raw materials are first transported from the raw material barrel to the drying equipment via pneumatic conveying equipment for drying. After drying, the materials are then transferred via another conveying structure or with manual assistance.

[0004] However, this separate equipment configuration has the following significant drawbacks: it occupies a large area, with two independent sets of equipment each requiring separate production sites, and in order to ensure seamless process connections, a certain amount of space needs to be reserved between the two for operation and pipeline layout, which places high demands on site area and layout planning.

[0005] Poor mobility and flexibility: the pneumatic conveying equipment and the drying equipment are connected by fixed pipes. When production needs change and the machine needs to be moved, the connecting pipes must be disassembled first, and then reassembled after the move is completed. The operation is cumbersome and time-consuming. At the same time, frequent disassembly can cause wear on the pipe joints and a decrease in sealing performance, which may lead to problems such as air leakage and material leakage during subsequent use. Utility Model Content

[0006] The purpose of this invention is to provide a dryer with a material conveying device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a dryer with a material conveying device, comprising: a frame, a vacuum hopper, and a heater. A drying barrel is fixed inside the frame. A magnetic reed hopper is provided at the top of the drying barrel. A material shut-off valve is provided at the bottom of the drying barrel. An air pump is provided on one side of the bottom of the frame. A filter is provided at the air inlet of the air pump. An electrical box and a heater are provided on one side of the top of the frame. A switching valve is fixed on one side of the top of the frame. A spring hose is provided between one end of the switching valve and the filter. A spring hose is also provided between the vacuum hopper and the switching valve.

[0008] Furthermore, the frame is equipped with casters at the four corners of its bottom, the casters are omnidirectional brake casters, and the bottom of the material cut-off valve is equipped with a discharge extension pipe.

[0009] Furthermore, a bottom discharge flange is provided at the connection between the bottom of the drying barrel and the material shut-off valve, and a pull plate is provided on one side of the material shut-off valve.

[0010] Furthermore, a microcomputer control board is provided on one side of the electrical box, and a flashing warning light is fixed on the outer wall of the top of the electrical box. The microcomputer control board is electrically connected to the heater.

[0011] Furthermore, a fan is provided on one side of the air inlet of the heater, and one end of the air outlet of the heater is connected to the inside of the drying barrel.

[0012] Furthermore, an exhaust elbow is provided on one side of the top of the drying barrel, and a fixing bracket is provided between the top of the frame and the outer wall of the drying barrel.

[0013] Furthermore, an air pressure reducing valve is provided on one side of the bottom of the drying barrel.

[0014] Furthermore, the bottom of the frame is provided with an air pump mounting plate below the air pump, and the air pump is fixed above the air pump mounting plate.

[0015] Furthermore, a negative pressure feed pipe is provided at one end of the feed inlet of the magnetic reed hopper, and a raw material barrel is connected to one end of the negative pressure feed pipe.

[0016] Furthermore, a negative pressure conveying pipe is provided between one end of the vacuum hopper inlet and the other end of the material discharge valve outlet.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This utility model integrates core components such as drying barrel, heater, air pump, magnetic reed hopper, and vacuum hopper into a single frame. All functional components are compactly installed on the same frame, eliminating the need for separate feeding and discharging equipment. It also saves the space required for piping between two sets of equipment, significantly reducing the overall footprint of the equipment. It is especially suitable for small production workshops or scenarios with limited space.

[0019] When the negative pressure generated by the air pump is transmitted to the magnetic reed hopper through the switching valve, a suction force is formed in the negative pressure feed pipe, drawing the material from the raw material bucket into the magnetic reed hopper, and then it falls into the drying bucket. This achieves automated conveying of raw materials from the raw material bucket to the drying bucket, eliminating the need for manual handling and reducing labor costs. The integrated feeding structure eliminates the need for additional independent feeding equipment, further reducing the space occupied by the equipment, while avoiding material contamination or spillage caused by manual feeding, thus improving the cleanliness and efficiency of production.

[0020] When the switching valve switches the negative pressure to the vacuum hopper, suction is generated in the negative pressure conveying pipe, drawing the dried material from the drying drum into the vacuum hopper through the discharge port of the shut-off valve, and then into the subsequent processing machine. This achieves automated conveying of dried material, eliminating the need for manual material transfer, seamlessly connecting drying and processing steps, and reducing intermediate production steps. The integrated discharge conveying structure eliminates the need for separate discharge equipment, further reducing the overall footprint of the equipment, while improving process connection efficiency and avoiding material moisture or contamination caused by manual transfer.

[0021] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of a dryer with a material conveying device according to the present invention;

[0023] Figure 2 This is a perspective view of a dryer with a material conveying device according to the present invention;

[0024] Figure 3 This is a perspective view of a dryer with a material conveying device according to this utility model.

[0025] Figure 4 This is another perspective view of the dryer with a material conveying device according to this utility model;

[0026] Figure 5 This is a left view of a dryer with a material conveying device according to the present invention;

[0027] Figure 6 This is a front view of a dryer with a material conveying device according to this utility model;

[0028] Figure 7 This is a perspective view of a dryer with a material conveying device according to this utility model.

[0029] In the diagram: 1. Casters; 2. Discharge extension pipe; 3. Cut-off valve; 4. Pull plate; 5. Filter; 6. Bottom discharge flange; 7. Electrical box; 8. Switching valve; 9. Fan; 10. Microcomputer control board; 11. Drying hopper; 12. Strobe warning light; 13. Exhaust elbow; 14. Magnetic reed hopper; 15. Fixed corner bracket; 16. Frame; 17. Air pressure reducing valve; 18. Air pump; 19. Air pump mounting plate; 20. Vacuum hopper; 21. Spring hose; 22. Heater; 23. Raw material hopper. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0031] Please see Figures 1-7 This utility model provides a technical solution: a dryer with a material conveying device, including: a frame 16, a vacuum hopper 20 and a heater 22. A drying barrel 11 is fixed inside the frame 16. A magnetic reed hopper 14 is provided on the top of the drying barrel 11. A material shut-off valve 3 is provided at the bottom of the drying barrel 11. An air pump 18 is provided on one side of the bottom of the frame 16. A filter 5 is provided at the air inlet end of the air pump 18. An electrical box 7 and a heater 22 are provided on one side of the top of the frame 16. A switching valve 8 is fixed on one side of the top of the frame 16. A spring hose 21 is provided between one end of the switching valve 8 and the filter 5. A spring hose 21 is also provided between the vacuum hopper 20 and the switching valve 8. When the air pump 18 operates, it generates negative pressure, which is transmitted to the switching valve 8 through the spring hose 21. The filter 5 filters impurities from the air entering the air pump 18, preventing impurities from damaging the internal components of the air pump 18 or contaminating the material. The switching valve 8 selectively distributes the negative pressure to the magnetic reed hopper 14 or the vacuum hopper 20 through a switching circuit, realizing a continuous process of feeding, drying, and discharging. The integrated design eliminates the need for separate transportation and drying equipment, significantly reducing the space occupied by the two sets of equipment and structurally solving the problem of large footprint of traditional separate equipment.

[0032] The magnetic reed hopper 14 is an automated hopper device integrating magnetic control induction and material temporary storage / conveyance functions. It is mainly used for automated feeding, temporary storage, or transfer of granules, powders, and small parts, and is widely used in injection molding, magnetic reed production, plastic processing, and automotive parts manufacturing. Its core feature is the automatic material level control achieved through a magnetic reed switch assembly, avoiding overflow and empty material. It also connects with upstream and downstream equipment such as feeders, dryers, and extruders to achieve automated production. This is similar to the centrifugal magnetic reed feeder disclosed in existing technologies, such as the existing Chinese patent (CN208856528U), whose structure and principle will not be elaborated upon here.

[0033] Casters 1 are provided at the four corners of the bottom of the frame 16. The casters 1 are swivel brake casters, and the bottom of the material shut-off valve 3 is provided with a discharge extension pipe 2. The casters 1 at the four corners of the bottom of the frame 16 adopt a swivel brake structure. The swivel design allows the equipment to move in any direction. The brake assembly can lock the casters 1 after the equipment moves to the target position to prevent the equipment from shifting. The discharge extension pipe 2 is a fixed-length extension structure that extends the discharge path of the material shut-off valve 3 and is used to empty the remaining material in the drying barrel 11.

[0034] A bottom discharge flange 6 is provided at the connection between the bottom end of the drying drum 11 and the shut-off valve 3, and a pull plate 4 is provided on one side of the shut-off valve 3. The bottom end of the drying drum 11 and the shut-off valve 3 are fastened together by bolts through the bottom discharge flange 6. The flange face is fitted with a sealing gasket to achieve a tight fit and block the negative pressure leakage channel. The pull plate 4 is a sliding structure, which can manually control the opening and closing of the discharge port of the shut-off valve 3, forming a dual discharge control mechanism with the shut-off valve 3.

[0035] A microcomputer control board 10 is installed on one side of the electrical box 7, and a flashing warning light 12 is fixed on the outer wall of the top of the electrical box 7. The microcomputer control board 10 is electrically connected to the heater 22. The microcomputer control board 10 integrates a control module, which precisely adjusts the heating temperature and working time of the heater 22 through electrical connection to achieve digital control of the drying temperature. The flashing warning light 12 is linked with the fault detection module of the equipment's electronic components such as the air pump 18, heater 22, and switching valve 8. When a component malfunctions, the warning light flashes rapidly to issue an alarm.

[0036] A fan 9 is installed on one side of the air inlet of the heater 22, and one end of the air outlet of the heater 22 is connected to the inside of the drying barrel 11. When the fan 9 is running, it generates airflow. After the airflow enters the heater 22 and is heated, it is delivered to the inside of the drying barrel 11 through the air outlet, forming a continuous hot airflow circulation. The hot airflow comes into full contact with the material inside the drying barrel 11, carrying away the moisture in the material.

[0037] An exhaust elbow 13 is provided on one side of the top of the drying barrel 11, and a fixing bracket 15 is provided between the top of the frame 16 and the outer wall of the drying barrel 11. The exhaust elbow 13 at the top of the drying barrel 11 is connected to the inside of the drying barrel 11, which can exhaust the moisture and excess heat generated during the drying process to the outside of the equipment; the fixing bracket 15 is fixed to the top of the frame 16 and the outer wall of the drying barrel 11 respectively by bolts, forming a triangular support structure to enhance the installation stability of the drying barrel 11.

[0038] An air pressure reducing valve 17 is provided on one side of the bottom of the drying drum 11. The air pressure reducing valve 17 is installed on one side of the bottom of the drying drum 11. Adjusting the air pressure reducing valve 17 can adjust the compressed air pressure to the normal operating range, ensuring the safe use of the switching valve 8 and the material shut-off valve 3.

[0039] An air pump mounting plate 19 is located at the bottom of the frame 16, below the air pump 18, with the air pump 18 fixed above it. The air pump mounting plate 19 is horizontally fixed to the bottom of the frame 16, and the air pump 18 is bolted to the top of the mounting plate 19. The mounting plate is made of high-strength sheet metal, which can distribute the vibration and weight load generated by the air pump 18 during operation. This reduces the impact of air pump 18 vibration on the frame 16 and other components, avoiding problems such as loose component connections and seal failure caused by vibration, thus protecting the overall structure of the equipment.

[0040] The magnetic reed hopper 14 has a negative pressure feed pipe at one end of its inlet, and the other end of the negative pressure feed pipe is connected to the raw material container 23. When the negative pressure generated by the air pump 18 is transmitted to the magnetic reed hopper 14 through the switching valve 8, a suction force is formed in the negative pressure feed pipe, which draws the material in the raw material container 23 into the magnetic reed hopper 14, and then it falls into the drying container 11. This achieves automated conveying of raw materials from the raw material container 23 to the drying container 11, eliminating the need for manual handling and reducing labor costs. The integrated feeding structure eliminates the need for additional independent feeding equipment, further reducing the space occupied by the equipment, while avoiding material contamination or spillage caused by manual feeding, thus improving the cleanliness and efficiency of production.

[0041] A negative pressure conveying pipe is installed between the inlet of the vacuum hopper 20 and the outlet of the shut-off valve 3. This negative pressure conveying pipe connects the outlet of the shut-off valve 3 to the inlet of the vacuum hopper 20. When the switching valve 8 switches the negative pressure to the vacuum hopper 20, suction is generated within the negative pressure conveying pipe, drawing the dried material from the drying barrel 11 from the outlet of the shut-off valve 3 into the vacuum hopper 20, where it then falls into the subsequent processing machine. This achieves automated conveying of the dried material, eliminating the need for manual material transfer, seamlessly connecting the drying and processing steps, and reducing intermediate production steps. The integrated discharge conveying structure eliminates the need for separate discharge equipment, further reducing the overall footprint of the equipment, while improving process connection efficiency and preventing material from becoming damp or contaminated due to manual transfer.

[0042] This utility model integrates core components such as drying barrel 11, heater 22, air pump 18, magnetic reed hopper 14, and vacuum hopper 20 into one unit through frame 16. All functional components are compactly installed on the same frame 16, eliminating the need for additional independent feeding and discharging transportation equipment. At the same time, it saves the space for pipeline layout between two sets of equipment, greatly reducing the overall footprint of the equipment. It is especially suitable for small production workshops or scenarios with limited space.

[0043] When the negative pressure generated by the air pump 18 is transmitted to the magnetic reed hopper 14 through the switching valve 8, a suction force is formed in the negative pressure feed pipe, drawing the material in the raw material barrel 23 into the magnetic reed hopper 14, and then into the drying barrel 11. This achieves automated conveying of raw materials from the raw material barrel 23 to the drying barrel 11, eliminating the need for manual handling and reducing labor costs. The integrated feeding structure eliminates the need for additional independent feeding equipment, further reducing the space occupied by the equipment, while avoiding material contamination or spillage caused by manual feeding, thus improving the cleanliness and efficiency of production.

[0044] When the switching valve 8 switches the negative pressure to the vacuum hopper 20, suction is generated in the negative pressure conveying pipe, drawing the dried material from the drying barrel 11 into the vacuum hopper 20 through the discharge port of the shut-off valve 3, and then into the subsequent processing machine. This achieves automated conveying of the dried material, eliminating the need for manual material transfer, seamlessly connecting the drying and processing steps, and reducing intermediate production steps. The integrated discharge conveying structure eliminates the need for additional independent discharge equipment, further reducing the overall footprint of the equipment, while improving process connection efficiency and avoiding material moisture or contamination caused by manual transfer.

[0045] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

Claims

1. A dryer with a material conveying device, comprising: The frame (16), vacuum hopper (20) and heater (22) are characterized in that: a drying barrel (11) is fixed inside the frame (16), a magnetic reed hopper (14) is provided on the top of the drying barrel (11), a material cut-off valve (3) is provided at the bottom of the drying barrel (11), an air pump (18) is provided on one side of the bottom of the frame (16), a filter (5) is provided at the air inlet end of the air pump (18), an electrical box (7) and a heater (22) are provided on one side of the top of the frame (16), a switching valve (8) is fixed on one side of the top of the frame (16), a spring hose (21) is provided between one end of the switching valve (8) and the filter (5), and a spring hose (21) is also provided between the vacuum hopper (20) and the switching valve (8).

2. A dryer with a material conveying device according to claim 1, characterized in that: The frame (16) is equipped with casters (1) at the four corners of the bottom. The casters (1) are universal brake casters. The bottom end of the material cut-off valve (3) is equipped with a discharge extension pipe (2).

3. A dryer with a material conveying device according to claim 2, characterized in that: The bottom of the drying barrel (11) is provided with a bottom discharge flange (6) at the connection between the bottom end and the material shut-off valve (3), and a pull plate (4) is provided on one side of the material shut-off valve (3).

4. A dryer with a material conveying device according to claim 1, characterized in that: The electrical box (7) is provided with a microcomputer control board (10) on one side, and a flashing warning light (12) is fixed on the outer wall of the top of the electrical box (7). The microcomputer control board (10) is electrically connected to the heater (22).

5. A dryer with a material conveying device according to claim 1, characterized in that: A fan (9) is provided on one side of the air inlet of the heater (22), and one end of the air outlet of the heater (22) is connected to the inside of the drying barrel (11).

6. A dryer with a material conveying device according to claim 1, characterized in that: The top side of the drying barrel (11) is provided with an exhaust elbow (13), and a fixing bracket (15) is provided between the top of the frame (16) and the outer wall of the drying barrel (11).

7. A dryer with a material conveying device according to claim 1, characterized in that: An air pressure reducing valve (17) is provided on one side of the bottom of the drying barrel (11).

8. A dryer with a material conveying device according to claim 1, characterized in that: The bottom of the frame (16) is provided with an air pump fixing plate (19) below the air pump (18), and the air pump (18) is fixed above the air pump fixing plate (19).

9. A dryer with a material conveying device according to claim 1, characterized in that: The magnetic reed hopper (14) has a negative pressure feed pipe at one end of its feed inlet, and the negative pressure feed pipe is connected to a raw material barrel (23) at one end.

10. A dryer with a material conveying device according to claim 1, characterized in that: A negative pressure conveying pipe is provided between the inlet end of the vacuum hopper (20) and the outlet side of the material cut-off valve (3).

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