Low-temperature preheating furnace

Abstract

The utility model belongs to the technical field of electrostatic spraying machines, and particularly relates to a low-temperature preheating furnace which comprises a preheating assembly capable of creating a temperature environment required by workpiece preheating, a feeding assembly capable of driving a workpiece to move and rotate in the preheating furnace is arranged in the preheating assembly, and a driving assembly capable of driving the feeding assembly to operate is arranged on one side of the preheating assembly. The feeding assembly is provided with a braking assembly capable of preventing the workpieces from being damaged due to continuous rotation during advancing. After the clamping piece fixes the workpiece needing to be preheated, the driving assembly drives part of parts of the transverse moving piece and the workpiece to move in the preheating assembly, so that the workpiece can make contact with hot air in the preheating assembly, and the temperature of the workpiece is increased; and the loading piece can drive the workpiece to rotate for a certain time length in the preheating assembly through the action of the braking assembly on the loading piece, so that all parts of the workpiece can be further in uniform contact with hot air.

Description

Technical Field

[0001] The utility model belongs to the technical field of electrostatic spraying machines, in particular to a low-temperature preheating furnace. Background Art

[0002] Electrostatic spraying is a common surface coating technology, which uses electrostatic action to make paint particles adsorb on the surface of the workpiece to form a powder layer of uniform thickness, and then heats and bakes to solidify the powder layer to make it level and form a uniform film layer. Preheating the workpiece in a low-temperature preheating furnace before spraying can increase the temperature of the workpiece and dry its surface, reduce thermal stress in the subsequent coating deposition process, avoid coating cracking, and improve the bonding strength between the coating and the workpiece.

[0003] However, in the prior art, the workpiece is usually fixed in the preheating furnace, which results in a long time required to fully preheat all parts of the workpiece. Therefore, a low-temperature preheating furnace is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a low-temperature preheating furnace.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A low-temperature preheating furnace, comprising a preheating assembly capable of creating a temperature environment required for preheating a workpiece, a feeding assembly capable of driving the workpiece to move and rotate in the preheating furnace, a driving assembly capable of driving the feeding assembly to operate, and a brake assembly capable of preventing the workpiece from being damaged due to continuous rotation during movement, provided in the preheating assembly;

[0007] The feeding assembly comprises a transverse moving part which can drive the workpiece to move transversely in the preheating furnace, a loading part which can make the workpiece rotate during the movement, and a clamping part which can fix the workpiece in the feeding assembly.

[0008] Preferably: the transverse moving member includes end seats fixedly connected to both sides of the preheating assembly, a lead screw is movably connected between the end seats, support rods are arranged in front and behind the lead screw, a first slide is arranged between the lead screw and the support rod, a guide rail is arranged above the support rod, and a second slide is movably connected between the guide rails.

[0009] Preferably: the loading part comprises an axle seat fixedly mounted on the second slide, a rotating shaft is movably connected in the axle seat, a gear is fixedly connected to the upper end of the rotating shaft, a bracket is fixedly connected above one of the guide rails, and a rack is fixedly connected to the front side of the bracket.

[0010] Preferably: the clamping member comprises a frame arranged between the first slide and the rotating shaft, sliders are movably connected on both sides of the frame, a locking knob is fixedly installed on one side of the slider, and clamps are fixedly connected in the frame and between the two sliders.

[0011] Preferably, the lead screw is connected to the first slide by threads, the support rod is slidably connected to the first slide, and the guide rail is slidably connected to the second slide.

[0012] Preferably, the shaft seat is rotatably connected to the rotating shaft.

[0013] Preferably, the first sliding bracket is rotatably connected to the frame, and the frame is slidably connected to the sliding block.

[0014] The beneficial effects of the utility model are as follows: after the clamping member has fixed the workpiece to be preheated, the driving assembly drives some parts of the transverse member and the workpiece to move in the preheating assembly, so that the workpiece can contact with the hot air in the preheating assembly and heat up; the brake assembly acts on the loading member, so that the loading member can drive the workpiece to rotate in the preheating assembly for a certain period of time, so that all parts of the workpiece can further evenly contact the hot air. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0016] Figure 1 It is an isometric structural schematic diagram of a low-temperature preheating furnace described in the utility model;

[0017] Figure 2 yes Figure 1 Schematic diagram of the structure of some parts;

[0018] Figure 3 yes Figure 2 A schematic diagram of the structure at an equal scale enlarged by the proportion;

[0019] Figure 4 yes Figure 2 A schematic diagram of the structure of some parts enlarged in proportion;

[0020] Figure 5 yes Figure 4 Another perspective structural diagram of .

[0021] The following are the descriptions of the reference numerals:

[0022] 1. Preheating assembly; 101. Base; 102. Furnace body; 103. Inspection plate; 2. Feeding assembly; 201. End seat; 202. Lead screw; 203. Support rod; 204. First slide; 205. Guide rail; 206. Second slide; 207. Shaft seat; 208. Rotating shaft; 209. Gear; 210. Bracket; 211. Rack; 212. Frame; 213. Slider; 214. Locking knob; 215. Clamp; 3. Driving assembly; 301. First pulley; 302. Motor; 303. Second pulley; 304. Belt; 4. Brake assembly; 401. Slider; 402. Connecting plate; 403. Brake plate; 404. Spring; 405. Push rod; 406. Lifting plate. DETAILED DESCRIPTION

[0023] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0025] The present invention is further described below by way of embodiments in conjunction with the accompanying drawings.

[0026] like Figure 1-Figure 5As shown, a low-temperature preheating furnace includes a preheating component 1 that can create a temperature environment required for preheating a workpiece, a feeding component 2 that can drive the workpiece to move and rotate in the preheating furnace is arranged in the preheating component 1, a driving component 3 that can drive the feeding component 2 to operate is arranged on one side of the preheating component 1, and a brake component 4 that can prevent the workpiece from being damaged due to continuous rotation while moving is arranged on the feeding component 2.

[0027] In this embodiment: the preheating component 1 includes a base 101, a furnace body 102 is fixedly installed in the base 101, and inspection panels 103 are fixedly connected to the front and rear sides of the furnace body 102; the furnace body 102, the feeding component 2 and the driving component 3 are installed through the base 101 to ensure the stability of the preheating furnace during use, and a relatively closed temperature environment required for preheating is created through the furnace body 102. The inspection panel 103 is convenient for the staff to observe the internal conditions of the furnace body 102, and to inspect and repair the components in the furnace body 102 after regular opening.

[0028] In this embodiment, the feeding assembly 2 includes a transverse moving member that can drive the workpiece to move horizontally in the preheating furnace, a loading member that can rotate the workpiece during the movement, and a clamping member that can fix the workpiece in the feeding assembly 2. The transverse moving member includes an end seat 201 fixedly connected to both sides of the preheating assembly 1, and a lead screw 202 is movably connected between the end seats 201. A support rod 203 is provided in front and behind the lead screw 202. A first slide 204 is provided between the lead screw 202 and the support rod 203. A guide rail 205 is provided above the support rod 203, and a guide rail 205 is provided between the guide rails 205. A second slide 206 is movably connected, and the loading member includes an axle seat 207 fixedly installed on the second slide 206, a rotating shaft 208 is movably connected in the axle seat 207, and a gear 209 is fixedly connected to the upper end of the rotating shaft 208. A bracket 210 is fixedly connected to the top of one of the guide rails 205, and a rack 211 is fixedly connected to the front side of the bracket 210. The clamping member includes a frame 212 arranged between the first slide 204 and the rotating shaft 208, and sliders 213 are movably connected to both sides of the frame 212, and a locking member is fixedly installed on one side of the slider 213. The knob 214, the frame 212 and the two sliders 213 are all fixedly connected with a clamping plate 215; the lead screw 202 is connected to the first slider 204 by a thread, the support rod 203 is slidably connected to the first slider 204, the guide rail 205 is slidably connected to the second slider 206, the shaft seat 207 is rotatably connected to the rotating shaft 208, the first slider 204 is rotatably connected to the frame 212, and the frame 212 is slidably connected to the slider 213; the lead screw 202 and the support rod 203 installed between the end seats 201 limit the first slider 204 The movable range of the second slide 206 is limited by the guide rail 205, the shaft 208 is installed through the shaft seat 207 connected to the second slide 206, the frame 212 is installed through the shaft 208 in cooperation with the first slide 204, and the shaft 208 is able to rotate during the lateral movement of the second slide 206 through the contact between the gear 209 and the rack 211 of a certain length. The height of the slider 213 in the frame 212 is adjusted by the locking knob 214, thereby adjusting the distance between the two clamps 215.

[0029] In this embodiment: the driving component 3 includes a first pulley 301 fixedly connected to one end of the screw 202, a motor 302 is fixedly installed on one side of the base 101, a second pulley 303 is fixedly connected to the output end of the motor 302, and a belt 304 is arranged between the first pulley 301 and the second pulley 303; when the rotation of the output end of the motor 302 is transmitted to the screw 202 through the second pulley 303, the belt 304, and the first pulley 301, the screw 202 can be driven to rotate relative to the end seat 201.

[0030] In this embodiment: the brake stop assembly 4 includes a slide bar 401 movably connected to both sides of the second slide 206, the upper end of the slide bar 401 is fixedly connected to a connecting plate 402, the lower end of the slide bar 401 is fixedly connected to a brake plate 403, the outer side of the slide bar 401 is movably connected to a spring 404, the rear side of the connecting plate 402 is fixedly connected to a lever 405, and the top lifting plate 406 is fixedly connected to the top of the bracket 210; the second slide 206 is slidably connected to the slide bar 401; the brake plate 403 is installed above the frame 212 through the slide bar 401, the position change of the brake plate 403 is limited by the spring 404, and the top lifting plate 406 is contacted by the lever 405 behind the connecting plate 402. When the lever 405 contacts the top lifting plate 406, its own height will change, and this change can be transmitted to the slide bar 401 through the connecting plate 402.

[0031] Working principle: When the low-temperature preheating furnace is installed and used for preheating workpieces before the electrostatic sprayer is working, the workpiece needs to be placed between the clamping plates 215 when the clamping parts are outside the furnace body 102, and the slider 213 is moved down after the locking knob 214 is loosened, so that the clamping plates 215 clamp the workpiece, and then the locking knob 214 is tightened and the frame 212 is rotated horizontally appropriately, so that it can smoothly enter the furnace body 102 with the workpiece; after the adjustment is completed, the motor 302 is driven to drive the lead screw 202 to rotate, so that the first slide 204 drives the loading parts, clamping parts and other parts and the workpiece arranged above it to move horizontally in the preheating furnace together. After moving horizontally for a certain distance, the lever 405 will contact the lifting plate 406 and move up a certain distance, so that the spring 404 is compressed and the brake plate 403 moves up, when the brake plate 403 no longer contacts the frame 212, and the gear 209 contacts the rack 211, the gear 209 will drive the clamping part and the workpiece to rotate through the rotating shaft 208, so that the workpiece can further evenly contact the hot air in the furnace body 102; when the lever 405 is separated from the lifting plate 406, the brake plate 403 will gradually return to its original position under the action of the spring 404, so that the frame 212 will gradually stop rotating through the friction between itself and the frame 212, and return to the state when entering the furnace body 102, so as to prevent the frame 212 from colliding with the exit of the furnace body 102 during the process of leaving the furnace body 102; after the transversely moved parts and the workpiece leave the furnace body 102 together, the staff can remove the preheated workpiece for subsequent processing.

[0032] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A low temperature preheating furnace, Features: It includes a preheating component that can create a temperature environment required for preheating the workpiece, a feeding component that can drive the workpiece to move and rotate in the preheating furnace is arranged in the preheating component, a driving component that can drive the feeding component to operate is arranged on one side of the preheating component, and a brake component that can prevent the workpiece from being damaged due to continuous rotation during movement is arranged on the feeding component; The feeding assembly includes a transverse moving part that can drive the workpiece to move transversely in the preheating furnace, a loading part that can make the workpiece rotate during the movement, and a clamping part that can fix the workpiece in the feeding assembly.

2. A low temperature preheating furnace according to claim 1, Features: The transverse moving member includes end seats fixedly connected to both sides of the preheating assembly, a lead screw is movably connected between the end seats, support rods are arranged in front and behind the lead screw, a first slide is arranged between the lead screw and the support rod, a guide rail is arranged above the support rod, and a second slide is movably connected between the guide rails.

3. A low temperature preheating furnace according to claim 2, Features: The loading part includes an axle seat fixedly mounted on the second slide, a rotating shaft is movably connected in the axle seat, a gear is fixedly connected to the upper end of the rotating shaft, a bracket is fixedly connected above one of the guide rails, and a rack is fixedly connected to the front side of the bracket.

4. A low temperature preheating furnace according to claim 3, Features: The clamping member includes a frame arranged between the first slide and the rotating shaft, sliders are movably connected on both sides of the frame, a locking knob is fixedly installed on one side of the slider, and clamps are fixedly connected in the frame and between the two sliders.

5. A low temperature preheating furnace according to claim 2, Features: The lead screw is connected to the first slide by threads, the support rod is slidably connected to the first slide, and the guide rail is slidably connected to the second slide.

6. A low temperature preheating furnace according to claim 3, Features: The shaft seat is rotatably connected to the rotating shaft.

7. A low temperature preheating furnace according to claim 4, Features: The first sliding bracket is rotatably connected to the frame, and the frame is slidably connected to the sliding block.

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