Heat supply device for plastic spraying production line

Abstract

The utility model relates to the technical field of heat supply, and discloses a heat supply device for a plastic spraying production line, which comprises a heat supply assembly, a sealing assembly is arranged on one side of the heat supply assembly, the sealing assembly comprises a sealing box, a sealing cavity is formed in a sealing box groove, a sealing baffle is connected in the sealing cavity in a sliding manner, and the sealing baffle is arranged in the sealing box groove. A pull rod is fixedly connected to the sealing baffle, a plurality of limiting holes are formed in one side of the exterior of the pull rod in sequence along the exterior of the pull rod, a guide hole is formed in one side of the sealing box, and a limiting clamping pin is slidably connected into the guide hole. According to the heat supply device for the plastic spraying production line, a limiting clamping pin is separated from a limiting hole, so that limiting of a pull rod is relieved, elasticity of a first reset spring is recovered, a sealing baffle is pushed to move along a sealing cavity, and therefore a pipeline is sealed through the sealing baffle, the pipeline is isolated, and gas is prevented from flowing back into the pipeline; plastic powder is prevented from entering the heat supply device, and the service life of the heat supply device is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of heating, in particular to a heating device for a plastic spraying production line. Background Art

[0002] In the plastic spraying production line, the heating device plays a vital role, especially when the plastic spraying process is being carried out. Plastic spraying is a process in which plastic powder is attached to the surface of metal or other materials through electrostatic spraying technology, and then cured by high-temperature baking to form a tough, beautiful and anti-corrosion coating. As a key equipment in this process, the main responsibility of the heating device is to provide stable and uniform heat. The stable heat provided by the heating device to the plastic spraying production line ensures that the plastic powder can be evenly heated during the baking process, thereby achieving rapid melting and solidification of the powder. However, when the existing heating device stops heating, it may cause the temperature of the pipes in the heating device and the outlet gas of the heating device to be different, resulting in different pressures, causing gas reflux, which may cause the refluxed gas to carry plastic powder, causing the plastic powder to enter the heating device, which may cause damage to the heating device. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] The utility model aims to provide a heating device for a plastic spraying production line to solve the problem in the background art that when the heating equipment stops supplying heat, gas reflux may occur, causing plastic powder to enter the heating device.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heating device for a plastic spraying production line, comprising a heating component, a sealing component is arranged on one side of the heating component, and the sealing component comprises a sealing box, a sealing cavity is opened in the sealing box groove, and a sealing baffle is slidably connected in the sealing cavity, a pull rod is fixedly connected to the sealing baffle, and a limiting hole is opened on the side outside the pull rod, and a plurality of limiting holes are opened in sequence along the outside of the pull rod, a guide hole is opened on one side of the sealing box, and a limiting pin is slidably connected in the guide hole, a telescopic rod is fixedly connected to the sealing baffle, and a return spring is connected to the outer shell of the telescopic rod.

[0007] Preferably, one end of the return spring 1 is fixedly connected to the sealing baffle, and the other end of the return spring 1 is fixedly connected to the inner wall of the sealing cavity.

[0008] Preferably, the heating component includes a heating device body, and a display panel is fixedly connected to the front of the heating device body, and a control panel is fixedly connected to the front of the heating device body.

[0009] Preferably, the control panel is installed below the display panel, a delivery fan is fixedly connected to one side of the heating device body, and a flange is fixedly connected to one side of the delivery fan, one side of the flange is flange-connected to an air duct, and a sealing box is fixedly connected to the outside of the air duct.

[0010] Preferably, a pressure relief component is provided in the sealing baffle, and the pressure relief component includes a pressure relief hole, and a plurality of the pressure relief holes are opened along the surface of the sealing baffle.

[0011] Preferably, a filter screen is snap-connected in the pressure relief hole, and a second telescopic rod is fixedly connected to one side of the filter screen, a sealing plug is fixedly connected to one end of the second telescopic rod, and a second return spring is connected to the outer sleeve of the second telescopic rod.

[0012] Preferably, one end of the second return spring is engaged and connected with the filter screen, and the other end of the second return spring is engaged and connected with the sealing plug, and the sealing plug is engaged and connected with the pressure relief hole.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The heating device for the plastic spraying production line is provided with a sealing cavity, a pull rod, a limiting hole, a guide hole, a telescopic rod 1, a reset spring, a sealing baffle and a limiting bayonet. The limiting bayonet is moved along the guide hole so that the limiting bayonet is disengaged from the limiting hole, thereby releasing the limit on the pull rod, allowing the elasticity of the reset spring 1 to be restored, and pushing the sealing baffle to move along the sealing cavity, so that the sealing baffle seals the pipeline, thereby isolating the pipeline, preventing gas from flowing back into the pipeline, and preventing plastic powder from entering the heating device, thereby ensuring the service life of the heating device;

[0015] 2. The heating device for the plastic spraying production line is provided with a pressure relief hole, a filter, a second reset spring and a sealing plug. The temperature in the sealing chamber is lowered, thereby reducing the pressure in the sealing chamber, so that the atmospheric pressure pushes the sealing plug to move and stretches the second reset spring to separate the sealing plug from the pressure relief hole, thereby achieving pressure relief in the sealing chamber, and filtering the gas through the filter to prevent damage to the sealing chamber, thereby ensuring the use of the heating device and preventing plastic powder from entering the heating device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the cutaway three-dimensional structure of the airtight sealing box of the utility model;

[0018] Figure 3 This is a schematic diagram of the cutaway three-dimensional structure of the sealing baffle of the utility model;

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the sealing plug of the utility model;

[0020] Figure 5 For this utility model Figure 3 Enlarged structural diagram at A in the middle.

[0021] In the figure: 1. Heating component; 101. Heating device body; 102. Display panel; 103. Control panel; 104. Conveying fan; 105. Flange; 106. Air duct; 2. Sealing component; 201. Sealing box; 202. Sealing chamber; 203. Pull rod; 204. Limiting hole; 205. Guide hole; 206. Telescopic rod one; 207. Reset spring; 208. Sealing baffle; 209. Limiting pin; 3. Pressure relief component; 301. Pressure relief hole; 302. Filter; 303. Telescopic rod two; 304. Reset spring two; 305. Sealing plug. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-Figure 5The utility model provides a technical solution: a heating device for a plastic spraying production line, comprising a heating component 1, a sealing component 2 is arranged on one side of the heating component 1, and the sealing component 2 comprises a sealing box 201, a sealing cavity 202 is provided in the groove of the sealing box 201, and a sealing baffle 208 is slidably connected in the sealing cavity 202, a pull rod 203 is fixedly connected to the sealing baffle 208, and a limiting hole 204 is provided on one side outside the pull rod 203, and a plurality of limiting holes 204 are sequentially provided along the outside of the pull rod 203, a guide hole 205 is provided on one side of the sealing box 201, and a limiting latch 209 is slidably connected in the guide hole 205, a telescopic rod 206 is fixedly connected to the sealing baffle 208, and the telescopic rod 20 The outer sleeve 206 is connected with a return spring 207. By setting a limit pin 209 and a limit hole 204, it is convenient to limit the pull rod 203, so as to ensure the circulation of gas in the sealing chamber 202. By setting a return spring 207, when the return spring 207 is compressed, the sealing baffle 208 is driven to separate from the sealing chamber 202, so as to release the seal of the sealing chamber 202. When the return spring 207 keeps the original length, the sealing baffle 208 is kept engaged with the sealing chamber 202, so as to achieve sealing. By setting a guide hole 205, it is convenient for the limit pin 209 to move along the direction of the guide hole 205. By setting a telescopic rod 206, the connection between the sealing chamber 202 and the sealing baffle 208 is ensured.

[0024] One end of the return spring 207 is fixedly connected to the sealing baffle 208 , and the other end of the return spring 207 is fixedly connected to the inner wall of the sealing cavity 202 .

[0025] The heating assembly 1 includes a heating device body 101 , and a display panel 102 is fixedly connected to the front of the heating device body 101 , and a control panel 103 is fixedly connected to the front of the heating device body 101 .

[0026] The control panel 103 is installed below the display panel 102. A delivery fan 104 is fixedly connected to one side of the heating device body 101, and a flange 105 is fixedly connected to one side of the delivery fan 104. A gas duct 106 is flange-connected to one side of the flange 105, and a sealing box 201 is fixedly connected to the outside of the gas duct 106.

[0027] A pressure relief assembly 3 is provided in the sealing baffle 208 , and the pressure relief assembly 3 includes a pressure relief hole 301 . A plurality of pressure relief holes 301 are provided along the surface of the sealing baffle 208 . The pressure relief holes 301 are provided to facilitate pressure relief inside the sealing cavity 202 .

[0028] A filter screen 302 is snap-fitted into the pressure relief hole 301, and a telescopic rod 2 303 is fixedly connected to one side of the filter screen 302, a sealing plug 305 is fixedly connected to one end of the telescopic rod 2 303, and a return spring 2 304 is connected to the outer sleeve of the telescopic rod 2 303. By setting the filter screen 302, it is convenient to filter the air, ensure the cleanliness of the air, and prevent foreign matter from entering the heating device. By setting the telescopic rod 2 303, when the telescopic rod 2 303 contracts, the sealing plug 305 is driven to snap-fit ​​into the pressure relief hole 301, and when the telescopic rod 2 303 extends, the sealing plug 305 is pushed to separate from the pressure relief hole 301.

[0029] One end of the second reset spring 304 is engaged with the filter screen 302, and the other end of the second reset spring 304 is engaged with the sealing plug 305, and the sealing plug 305 is engaged with the pressure relief hole 301. By providing the second reset spring 304, when the second reset spring 304 is stretched, the second telescopic rod 303 is extended, so that the sealing plug 305 is disengaged from the pressure relief hole 301, thereby releasing the seal of the sealing chamber 202. When the second reset spring 304 maintains the original length, the sealing plug 305 is engaged with the pressure relief hole 301, thereby achieving a sealing effect. By providing the sealing plug 305, when the sealing plug 305 is engaged with the pressure relief hole 301, the sealing chamber 202 is sealed.

[0030] Working principle: When the heating device is used, firstly, the heating device body 101 is started through the control panel 103, and the heating status is observed through the display panel 102. Secondly, the hot air flow generated by the heating device is transported through the transport fan 104, so as to melt the plastic dust, so that the plastic dust is evenly covered on the surface of the workpiece. When the processing is completed, the limit pin 209 is moved along the guide hole 205, so that the limit pin 209 is disengaged from the limit hole 204, thereby releasing the limit on the pull rod 203, so that the elasticity of the reset spring 207 is restored, and the sealing baffle 208 is pushed to move along the sealing cavity 202, so that the sealing baffle 208 seals the pipeline, thereby the pipeline Isolation is performed to prevent gas from flowing back into the pipeline and plastic powder from entering the heating device, thereby ensuring the service life of the heating device. The surfaces of the pull rod 203 and the limit pin 209 are wrapped with insulation pads to prevent burns. Finally, the temperature in the sealing chamber 202 is reduced, thereby reducing the pressure in the sealing chamber 202, so that the atmospheric pressure pushes the sealing plug 305 to move and stretches the reset spring 304 to separate the sealing plug 305 from the pressure relief hole 301, thereby achieving pressure relief of the sealing chamber 202, and filtering the gas through the filter net 302 to prevent damage to the sealing chamber 202, thereby ensuring the use of the heating device and preventing plastic powder from entering the heating device.

[0031] Finally, it should be noted that the above content is only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Simple modifications or equivalent substitutions of the technical solution of the utility model by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the utility model.

Claims

1. A heating device for a plastic spraying production line, comprising a heating component (1), characterized in that: A sealing component (2) is provided on one side of the heating component (1), and the sealing component (2) includes a sealing box (201), a sealing cavity (202) is provided in a groove of the sealing box (201), and a sealing baffle (208) is slidably connected in the sealing cavity (202), a pull rod (203) is fixedly connected to the sealing baffle (208), and a limiting hole (204) is provided on one side outside the pull rod (203), and a plurality of limiting holes (204) are sequentially provided along the outside of the pull rod (203), a guide hole (205) is provided on one side of the sealing box (201), and a limiting pin (209) is slidably connected in the guide hole (205), a telescopic rod (206) is fixedly connected to the sealing baffle (208), and a return spring (207) is connected to the outer sleeve of the telescopic rod (206).

2. A heating device for a plastic spraying production line according to claim 1, characterized in that: One end of the return spring 1 (207) is fixedly connected to the sealing baffle (208), and the other end of the return spring 1 (207) is fixedly connected to the inner wall of the sealing cavity (202).

3. A heating device for a plastic spraying production line according to claim 2, characterized in that: The heating assembly (1) comprises a heating device body (101), and a display panel (102) is fixedly connected to the front of the heating device body (101), and a control panel (103) is fixedly connected to the front of the heating device body (101).

4. A heating device for a plastic spraying production line according to claim 3, characterized in that: The control panel (103) is installed below the display panel (102); a conveying fan (104) is fixedly connected to one side of the heating device body (101); a flange (105) is fixedly connected to one side of the conveying fan (104); a gas delivery conduit (106) is flange-connected to one side of the flange (105); and a sealing box (201) is fixedly connected to the outside of the gas delivery conduit (106).

5. The heating device for a plastic spraying production line according to claim 1, characterized in that: A pressure relief component (3) is arranged inside the sealing baffle (208), and the pressure relief component (3) comprises a pressure relief hole (301). A plurality of the pressure relief holes (301) are opened along the surface of the sealing baffle (208).

6. A heating device for a plastic spraying production line according to claim 5, characterized in that: A filter screen (302) is snap-fitted into the pressure relief hole (301), and one side of the filter screen (302) is fixedly connected to a second telescopic rod (303), one end of the second telescopic rod (303) is fixedly connected to a sealing plug (305), and a second return spring (304) is connected to the outer sleeve of the second telescopic rod (303).

7. A heating device for a plastic spraying production line according to claim 6, characterized in that: One end of the second return spring (304) is snap-connected with the filter screen (302), and the other end of the second return spring (304) is snap-connected with the sealing plug (305), and the sealing plug (305) is snap-connected with the pressure relief hole (301).

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