A hot press device for resin bonded grinding wheel hardening

Abstract

This utility model relates to the field of grinding wheel production equipment, specifically to a hot pressing device for hardening resin grinding wheels. It includes a housing with a door on the side. Inside the housing, multiple partitions are spaced from top to bottom. Each partition has a lower heating box at its upper end, and an upper heating box slides above each lower heating box. A lifting frame is installed inside the housing, and the lifting frame also includes multiple connecting beams, each corresponding to one of the upper heating boxes. Each lower heating box has rigid pipes, and each upper heating box has flexible hoses. A vertical delivery pipe is installed inside the housing, connecting to all the rigid and flexible pipes. The lower end of the delivery pipe is connected to a four-way pipe. Three heat-conducting oil tanks are located outside the housing. Each heat-conducting oil tank contains an electric heating element and a liquid outlet pipe. Each liquid outlet pipe is equipped with a delivery pump and an electrically controlled valve, and each liquid outlet pipe is connected to the four-way pipe. This utility model allows for rapid adjustment of the hardening temperature by changing the heat-conducting oil to different temperatures, resulting in uniform heating of the resin grinding wheel.

Description

Technical Field

[0001] This utility model relates to the field of grinding wheel production equipment, specifically to a hot pressing device for hardening resin grinding wheels. Background Technology

[0002] The production process of resin grinding wheels includes raw material preparation, mixing, proofing, molding, hardening, and post-treatment. Hardening is achieved by heating the resin. The temperature varies depending on the type of resin, requiring control of the heating rate and temperature stages. These stages include the initial melting and reaction initiation stage, with temperatures between 60°C and 80°C; the cross-linking reaction-dominant stage, with temperatures between 110°C and 180°C; and the high-temperature setting and final hardening stage, with temperatures between 160°C and 190°C. The hardening furnace needs to be adjusted to different temperatures for each stage, making it essential to design a hot pressing device for hardening resin grinding wheels that allows for easy temperature adjustment. Summary of the Invention

[0003] The purpose of this invention is to provide a hot pressing device for hardening resin grinding wheels, which has the advantages of easy control of hot pressing temperature and good hot pressing effect.

[0004] The technical solution adopted is as follows:

[0005] A hot pressing device for hardening resin grinding wheels includes a housing with a door on the side. The housing has multiple partitions spaced from top to bottom, each with a lower heating box at the top and an upper heating box slidably mounted above each. A lifting frame is installed inside the housing, and the lifting frame also includes multiple connecting beams, each corresponding to one of the upper heating boxes. Each lower heating box has a rigid pipe, and each upper heating box has a flexible hose. A vertical delivery pipe is installed inside the housing, connecting to all the rigid and flexible pipes. The lower end of the delivery pipe is connected to a four-way pipe. Three heat-conducting oil tanks are installed outside the housing, each containing an electric heating element connected to a corresponding power supply and power control unit. Each heat-conducting oil tank has an outlet pipe, which is equipped with a delivery pump and an electrically controlled valve. The outlet pipe is connected to the four-way pipe.

[0006] Preferably, the lifting frame includes a frame, a vertically arranged slide groove inside the housing, the frame being slidably disposed within the slide groove, and a telescopic cylinder being vertically arranged at the upper end of the housing, the telescopic cylinder including a piston rod extending into the housing and connected to the frame.

[0007] Preferably, the exterior of the enclosure is provided with an insulation layer.

[0008] Preferably, each of the heat-conducting oil tanks is equipped with a temperature sensor.

[0009] Preferably, the air inlet is equipped with a one-way gas valve.

[0010] Compared to existing technologies, the advantages are:

[0011] During the heating and hardening process of the resin grinding wheel, the hardening temperature can be quickly adjusted by changing the heat transfer oil at different temperatures, and the resin grinding wheel is heated evenly. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the right front side of a hot pressing device for hardening resin grinding wheels according to this utility model;

[0013] Figure 2 This is a three-dimensional structural diagram of the left front side of a hot pressing device for hardening resin grinding wheels according to this utility model;

[0014] Figure 3 This is a front view schematic diagram of a hot pressing device for hardening resin grinding wheels according to this utility model;

[0015] Figure 4 This is a schematic diagram of the internal structure of the heat-conducting oil tank of a hot pressing device for hardening resin grinding wheels according to this utility model.

[0016] In the diagram: 1. Box body; 2. Box door; 3. Partition; 4. Frame; 5. Slide rail; 6. Telescopic cylinder; 7. Connecting beam; 8. Rigid pipe; 9. Flexible hose; 10. Delivery pipe; 11. Four-way pipe; 12. Heat transfer oil tank; 13. Electric heating element; 14. Temperature sensor; 15. Display screen; 16. Liquid outlet pipe; 17. Delivery pump; 18. Electrically controlled valve; 19. Controller; 20. Upper heating box; 21. Lower heating box; 22. Exhaust pipe; 23. Exhaust fan; 24. Air inlet; 25. One-way gas valve; 26. Exhaust gas treatment mechanism. Specific Implementation

[0017] The present invention will be further described below with reference to specific embodiments, such as... Figures 1 to 4 As shown:

[0018] Example 1: A hot pressing device for hardening resin grinding wheels includes a box body 1, a box door 2 on the side of the box body 1, multiple partitions 3 arranged from top to bottom inside the box body 1, a lower heating box 21 arranged at the top of each partition 3, an upper heating box 20 slidably arranged above each lower heating box 21, and a lifting frame arranged inside the box body 1.

[0019] The lifting frame also includes multiple connecting beams 7, which are connected one-to-one with the upper heating box 20. The lifting frame drives the upper heating box 20 to rise and fall. The lower heating box 21 is equipped with rigid pipes 8, which are used to transport or discharge heat transfer oil into the lower heating box 21. The upper heating box 20 is equipped with flexible hoses 9, which are used to transport or discharge heat transfer oil into the upper heating box 20. The box body 1 is vertically equipped with a conveying pipe 10 that is connected to all the rigid pipes 8 and flexible hoses 9. The lower end of the conveying pipe 10 is connected to a four-way pipe 11.

[0020] The outer casing 1 is equipped with three heat transfer oil tanks 12, each containing an electric heating element 13. The electric heating element 13 is connected to a corresponding power supply and power control unit. Different electric heating elements 13 heat the heat transfer oil in different heat transfer oil tanks 12 to different temperatures. Different heat transfer oil tanks 12 provide heat transfer oil at different temperatures, thereby adapting to the needs of resin grinding wheel hardening at different stages. Each heat transfer oil tank 12 is equipped with an outlet pipe 16, which is equipped with a delivery pump 17 and an electric control valve 18. The outlet pipe 16 is connected to a four-way pipe 11. The outer casing 1 is equipped with a controller 19, which is connected to each delivery pump 17 and electric control valve 18. The controller 19 controls the opening and closing of the corresponding outlet pipe 16 by controlling the delivery pump 17 and the electric control valve 18, thereby delivering heat transfer oil at different temperatures to the upper heating box 20 and the lower heating box 21.

[0021] An exhaust pipe 22 is provided at the upper end of the housing 1, and an exhaust fan 23 is provided on the exhaust pipe 22. An air inlet 24 is provided at the lower end of the housing 1. The exhaust fan 23 exhausts the gas generated during the hardening process of the resin grinding wheel inside the housing 1. The end of the exhaust pipe 22 is connected to an exhaust gas treatment mechanism 26. The exhaust gas treatment mechanism 26 is existing technology and will not be described in detail here. The exhaust gas treatment mechanism 26 is used to treat the exhaust gas generated during the hardening process of the resin grinding wheel and then discharges it after treatment.

[0022] Example 2: A hot pressing device for hardening resin grinding wheels includes a box body 1, a box door 2 on the side of the box body 1, and an insulation layer on the outside of the box body 1. The insulation layer reduces heat loss and has the advantage of energy saving. Multiple partitions 3 are arranged at intervals from top to bottom inside the box body 1. A lower heating box 21 is arranged at the top of each partition 3. An upper heating box 20 is slidably arranged above each lower heating box 21. A lifting frame is arranged inside the box body 1. The lifting frame includes a frame 4. A sliding groove 5 is arranged vertically inside the box body 1. The frame 4 is slidably arranged in the sliding groove 5. A telescopic cylinder 6 is arranged vertically at the top of the box body 1. The telescopic cylinder 6 includes a piston rod that extends into the box body 1 and is connected to the frame 4.

[0023] The lifting frame also includes multiple connecting beams 7, which are connected one-to-one with the upper heating box 20. The lifting frame drives the upper heating box 20 to rise and fall. The lower heating box 21 is equipped with rigid pipes 8, which are used to transport or discharge heat transfer oil into the lower heating box 21. The upper heating box 20 is equipped with flexible hoses 9, which are used to transport or discharge heat transfer oil into the upper heating box 20. The box body 1 is vertically equipped with a conveying pipe 10 that is connected to all the rigid pipes 8 and flexible hoses 9. The lower end of the conveying pipe 10 is connected to a four-way pipe 11.

[0024] The outer side of the housing 1 is equipped with three heat transfer oil tanks 12, each of which is equipped with an electric heating tube 13. The electric heating tube 13 is connected to a corresponding power supply and power control unit. Different electric heating tubes 13 heat the heat transfer oil in different heat transfer oil tanks 12 to different temperatures. Each heat transfer oil tank 12 is equipped with a temperature sensor 14. The outer side of the heat transfer oil tank 12 is equipped with a control module and a display screen 15 connected to the corresponding temperature sensor 14. The display screen 15 is used to display the temperature of the internal heating oil.

[0025] Different heat transfer oil tanks 12 provide heat transfer oil at different temperatures to meet the needs of resin grinding wheel hardening at different stages. Each heat transfer oil tank 12 is equipped with an outlet pipe 16, and each outlet pipe 16 is equipped with a delivery pump 17 and an electric control valve 18. Each outlet pipe 16 is connected to a four-way pipe 11. A controller 19 is installed outside the tank body 1. The controller 19 is connected to each delivery pump 17 and electric control valve 18. The controller 19 controls the opening and closing of the corresponding outlet pipe 16 by controlling the delivery pump 17 and the electric control valve 18, thereby delivering heat transfer oil at different temperatures to the upper heating box 20 and the lower heating box 21.

[0026] An exhaust pipe 22 is provided at the upper end of the housing 1, and an exhaust fan 23 is provided on the exhaust pipe 22. An air inlet 24 is provided at the lower end of the housing 1, and a one-way gas valve 25 is provided at the air inlet 24. The exhaust fan 23 exhausts the gas generated during the hardening process of the resin grinding wheel inside the housing 1. The end of the exhaust pipe 22 is connected to an exhaust gas treatment mechanism 26. The exhaust gas treatment mechanism 26 is existing technology and will not be described in detail here. The exhaust gas treatment mechanism 26 is used to treat the exhaust gas generated during the hardening process of the resin grinding wheel and then discharges it after treatment.

[0027] The working principle is as follows:

[0028] Open the chamber door 2 and place the resin grinding wheel to be hardened on the upper end of the lower heating chamber 21. Then control the lifting frame to raise and lower, pressing the corresponding upper heating chamber 20 on the upper end of the resin grinding wheel. Then start the exhaust fan 23 and simultaneously start the electric heating tube 13 in the heat transfer oil tank 12 to heat to the corresponding temperature. The controller 19 controls the corresponding delivery pump 17 to input heat transfer oil of different temperatures into each upper heating chamber 20 and lower heating chamber 21 at different times, so as to achieve the hardening of the resin grinding wheel by using heat transfer oil of different temperatures at different stages. The gas generated during the hardening process is discharged from the exhaust pipe 22 to the exhaust gas treatment mechanism 26 to discharge the discharged gas. During the heating process, it is easy to quickly adjust the hardening temperature by changing the heat transfer oil of different temperatures, and the resin grinding wheel is heated evenly.

[0029] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A hot pressing device for hardening resin grinding wheels, characterized in that... The enclosure includes a housing (1), a door (2) on the side of the housing (1), multiple partitions (3) spaced from top to bottom inside the housing (1), a lower heating box (21) at the top of each partition (3), an upper heating box (20) sliding above each lower heating box (21), a lifting frame inside the housing (1), and multiple connecting beams (7) connected one-to-one with the upper heating box (20). Each lower heating box (21) is equipped with a rigid pipe (8), and each upper heating box (20) is equipped with a flexible hose (9). The inner vertical section is provided with a delivery pipe (10) that is connected to all the rigid pipes (8) and flexible pipes (9). The lower end of the delivery pipe (10) is connected to a four-way pipe (11). Three heat transfer oil tanks (12) are provided outside the box body (1). Each heat transfer oil tank (12) is provided with an electric heating tube (13). The electric heating tube (13) is connected to a corresponding power supply and power control unit. Each heat transfer oil tank (12) is provided with an outlet pipe (16). Each outlet pipe (16) is provided with a delivery pump (17) and an electric control valve (18). Each outlet pipe (16) is connected to a four-way pipe (11).

2. A heat press device for resinoid grinding wheel hardening according to claim 1, characterized in that The lifting frame includes a frame (4), a vertically arranged slide groove (5) inside the box (1), the frame (4) is slidably arranged in the slide groove (5), and a telescopic cylinder (6) is vertically arranged at the upper end of the box (1). The telescopic cylinder (6) includes a piston rod that extends into the box (1) and is connected to the frame (4).

3. The hot-pressing apparatus for resinoid grinding wheel hardening according to claim 1, wherein The outer surface of the box (1) is provided with a heat insulation layer.

4. The hot-pressing apparatus for resinoid grinding wheel hardening according to claim 1, wherein Temperature sensors (14) are installed in all the heat transfer oil tanks (12).

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