Powder coating extrusion equipment

Abstract

The invention discloses powder coating extrusion equipment, and relates to powder coating forming processing, the powder coating extrusion equipment comprises an equipment frame, the equipment frame is fixedly connected with a longitudinal discharge pipe, the bottom of the longitudinal discharge pipe is fixedly connected with a transverse discharge pipe, the equipment frame is fixedly connected with a motor, and a motor rotor is fixedly connected with a horizontal rotating shaft; a water tank is fixedly connected to the upper portion of the equipment frame, a water pump is fixedly connected to the equipment frame, the outer side of the transverse discharging pipe is sleeved with a cooling cover, a spiral cooling water channel is arranged on the inner side of the cooling cover, and water return pipes are arranged at different positions of the spiral cooling water channel in a communicating mode. The cooling cover is arranged on the outer surface of the extrusion equipment, so that the extruded powder coating can be cooled, and the spiral cooling water channel in the cooling cover can meet different degrees of cooling requirements of the powder coating, so that the powder coating extrusion equipment has good adaptability when being used for processing powder coatings with different formulas.

Description

Technical Field

[0001] The invention relates to the molding process of powder coating, in particular to a powder coating extrusion device. Background Art

[0002] Powder coatings are mainly composed of resins, pigments, fillers, curing agents and other additives. Among them, resins are the film-forming substances of powder coatings. Common ones include epoxy resins, polyester resins, acrylic resins, etc. Different types of resins give powder coatings different basic properties. For example, epoxy resins have excellent adhesion and chemical corrosion resistance; polyester resins can make the coating have good weather resistance and decorative properties.

[0003] In the production process of powder coatings, the molten and fully mixed raw materials need to be pressed into tablets. The temperature has a great influence on the tableting process. If the temperature is too high, the coating is easy to stick to the outer surface of the extrusion roller, so the powder coating needs to be cooled. Because powder coatings with different formulas have differences in viscosity, curing characteristics, etc., when processing powder coatings with different formulas, the cooling effect needs to be adjusted according to the formula. Existing equipment is difficult to meet such diverse cooling needs. As a result, the extruded powder coating cannot be smoothly processed in the subsequent tableting process, which seriously affects production efficiency and product quality.

[0004] Therefore, those skilled in the art have proposed a powder coating extrusion device to solve the problems raised in the above background. Summary of the invention

[0005] The object of the present invention is to provide a powder coating extrusion device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A powder coating extrusion equipment comprises an equipment frame, a longitudinal discharge pipe is fixedly connected to the equipment frame, a transverse discharge pipe is fixedly connected to the bottom of the longitudinal discharge pipe, a motor is fixedly connected to the equipment frame, a horizontal rotating shaft is fixedly connected to the motor rotor, a discharge auger located inside the transverse discharge pipe is fixedly connected to the outer side of the horizontal rotating shaft, a water tank is fixedly connected to the top of the equipment frame, a water pump is fixedly connected to the equipment frame, a cooling hood is provided on the outer side of the transverse discharge pipe, a water inlet of the water pump is connected to the water tank through a water inlet pipe, a water outlet of the water pump is connected to the cooling hood through a water outlet pipe, a spiral cooling water channel is arranged on the inner side of the cooling hood, return pipes are arranged at different positions of the spiral cooling water channel, the other end of the return pipe is connected to the water tank, and a touch valve for controlling the on-off of the return pipe is connected to the middle of the return pipe.

[0007] As a further solution of the present invention: the equipment frame is rotatably connected with a symmetrically arranged positioning shaft, the positioning shaft is transmission-connected with the horizontal shaft, one of the positioning shafts is fixedly connected with a driving thread on the outside, the driving thread is threadedly connected with a screw sleeve on the outside, a guide rod is fixedly connected with the outside of the screw sleeve, the guide rod is slidably connected with another positioning shaft, a valve control rod is fixedly connected with the outside of the screw sleeve, the valve control rod cooperates with different touch valves, and when the valve control rod contacts the touch valve, the corresponding touch valve opens.

[0008] As a further solution of the present invention: when the valve control rod cooperates with the touch valve farthest from the longitudinal discharge pipe, the screw sleeve disengages from the driving thread, and a spring is provided on the outer sleeve of the positioning shaft. When the screw sleeve disengages from the driving thread, the spring is in a compressed state.

[0009] As a further solution of the present invention: spiral blades are fixedly connected to the outer sides of the positioning shafts.

[0010] As a further solution of the present invention: a driven pulley is sleeved on the outer side of the positioning shaft, a driving pulley is fixedly connected to the outer side of the horizontal shaft, a transmission belt is sleeved between the driven pulley and the driving pulley, and a tightening assembly for tightening the transmission belt is also fixedly connected to the equipment frame.

[0011] As a further solution of the present invention: the tensioning assembly includes an adjusting rod rotatably connected to the equipment frame, and the end of the adjusting rod is rotatably connected to a tensioning wheel. When the adjusting rod is rotated, the tensioning wheel rotates to apply pressure to the transmission belt, thereby tightening the transmission belt.

[0012] As a further solution of the present invention: the cooling cover includes an upper cover body and a lower cover body, the upper cover body and the lower cover body are connected by bolts, the upper cover body and the lower cover body are consistent with the surface of the horizontal discharge pipe, and the inner sides of the upper cover body and the lower cover body are provided with arc-shaped spiral grooves, and multiple different arc-shaped spiral grooves are combined into a spiral cooling water channel.

[0013] Compared with the prior art, the present invention has the following beneficial effects: the present invention has a simple structure and is easy to use. By arranging a cooling hood on the outer surface of the extrusion equipment, the extruded powder coating can be cooled. The spiral cooling water channel inside the cooling hood can meet the cooling requirements of the powder coating to different degrees, so that it can have good adaptability when processing powder coatings of different formulas. In addition, when the cooling load reaches the maximum level, the motor can be used to drive the spiral fan blades to assist in cooling, so as to fully ensure that the extruded powder coating can be smoothly processed by tableting, and the use effect is outstanding. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic structural diagram of a powder coating extrusion device from a first-person perspective; Figure 2 It is a schematic structural diagram of a powder coating extrusion device from a second perspective; Figure 3 It is a schematic structural diagram of a powder coating extrusion device from a third perspective; Figure 4 for Figure 1 Enlarged view of point A in the middle; Figure 5 for Figure 3 Enlarged view of point B in the middle; Figure 6 It is a partial structural schematic diagram of a powder coating extrusion equipment; Figure 7 It is a schematic diagram of the structure of an upper cover body in a powder coating extrusion device; Figure 8 The figure is a schematic diagram of the structure of the lower cover body in a powder coating extrusion device.

[0015] In the figure: 1. Equipment frame; 2. Longitudinal discharge pipe; 3. Horizontal discharge pipe; 4. Motor; 5. Horizontal shaft; 6. Water tank; 7. Water pump; 8. Water inlet pipe; 9. Water outlet pipe; 10. Cooling hood; 11. Return pipe; 12. Touch valve; 13. Positioning shaft; 14. Driving thread; 15. Screw sleeve; 16. Guide rod; 17. Valve control rod; 18. Spring; 19. Spiral fan blade; 20. Driven pulley; 21. Driving pulley; 22. Transmission belt; 23. Tensioning assembly; 24. Adjusting rod; 25. Tensioning wheel; 26. Upper cover body; 27. Lower cover body; 28. Arc spiral groove. DETAILED DESCRIPTION

[0016] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0017] In the description of the present invention, 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 invention 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 limiting the present invention. In addition, the terms "first", "second", and the like 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. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0018] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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.

[0019] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0020] Example 1: Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 A powder coating extrusion equipment comprises an equipment frame 1, a longitudinal discharge pipe 2 is fixedly connected to the equipment frame 1, a transverse discharge pipe 3 is fixedly connected to the bottom of the longitudinal discharge pipe 2, a motor 4 is fixedly connected to the equipment frame 1, a horizontal rotating shaft 5 is fixedly connected to the rotor of the motor 4, a discharge auger located inside the transverse discharge pipe 3 is fixedly connected to the outside of the horizontal rotating shaft 5, a water tank 6 is fixedly connected to the top of the equipment frame 1, a water pump 7 is fixedly connected to the equipment frame 1, a cooling hood 10 is sleeved on the outside of the transverse discharge pipe 3, a water inlet of the water pump 7 is connected to the water tank 6 through a water inlet pipe 8, a water outlet of the water pump 7 is connected to the cooling hood 10 through a water outlet pipe 9, a spiral cooling water channel is arranged on the inside of the cooling hood 10, and a return pipe 11 is arranged at different positions of the spiral cooling water channel, the other end of the return pipe 11 is connected to the water tank 6, and a touch valve 12 for controlling the on and off of the return pipe 11 is connected to the middle of the return pipe 11.

[0021] When in use, the molten powder coating needs to be placed in the longitudinal discharge pipe 2, or the longitudinal discharge pipe 2 can be directly fixedly connected to the discharge port of the melting device. The molten coating will flow through the longitudinal discharge pipe 2 to the transverse discharge pipe 3. Since the formulas of different powder coatings are different, their viscosities are also different. When cooling, the cooling effect needs to be adjusted according to the needs. Turn on the water pump 7, the water pump 7 will absorb water through the water inlet pipe 8, and then drain water through the water outlet pipe 9 to the inside of the cooling cover 10. There is a spiral cooling water channel inside the cooling cover 10, which will flow along the surface of the transverse discharge pipe 3 and then flow out from the return pipe 11. There are multiple return pipes 11. When flowing out from different return pipes 11, the cooling water will flow in different strokes and take away different heat, thereby achieving different cooling effects.

[0022] A symmetrically arranged positioning shaft 13 is rotatably connected to the equipment frame 1, and the positioning shaft 13 is transmission-connected to the horizontal shaft 5. A driving thread 14 is fixedly connected to the outer side of one of the positioning shafts 13, and a screw sleeve 15 is threadedly connected to the outer side of the driving thread 14. A guide rod 16 is fixedly connected to the outer side of the screw sleeve 15, and the guide rod 16 is slidably connected to another positioning shaft 13. A valve control rod 17 is fixedly connected to the outer side of the screw sleeve 15, and the valve control rod 17 cooperates with different touch valves 12. When the valve control rod 17 contacts the touch valve 12, the corresponding touch valve 12 opens.

[0023] The touch valve 12 is used to control the return path of the cooling water, that is, to control which return pipe 11 the cooling water flows back through. The technology of the touch valve 12 is an existing technology, and various existing valves can be opened and closed by touch. The positioning shaft 13 is in transmission connection with the horizontal shaft 5. During the rotation of the horizontal shaft 5, the positioning shaft 13 can be driven to rotate, and then the driving thread 14 can be driven to rotate. The driving thread 14 drives the screw sleeve 15 to move linearly, and during the movement, the valve control rod 17 is driven to move to different touch valves 12, so that the corresponding touch valve 12 is opened, and the cooling water can flow back.

[0024] See also Figure 5 and Figure 6 When the valve control rod 17 is matched with the touch valve 12 farthest from the longitudinal discharge pipe 2, the screw sleeve 15 and the driving thread 14 are disengaged from the thread, and a spring 18 is sleeved on the outer side of the positioning shaft 13. When the screw sleeve 15 and the driving thread 14 are disengaged from the thread, the spring 18 is in a compressed state. The outer side of the positioning shaft 13 is fixedly connected with a spiral fan blade 19.

[0025] When the screw sleeve 15 moves to the farthest end, the return path of the cooling water is the longest. At this time, the transmission relationship between the positioning shaft 13 and the horizontal shaft 5 can be disconnected, so that the positioning shaft 13 stops rotating. At the same time, the positioning shaft 13 can continue to rotate, and the cooling effect is further improved by the rotation of the spiral fan blades 19. During the rotation of the spiral fan blades 19, the temperature near the cooling cover 10 can be quickly reduced to improve the cooling effect of the cooling water. The setting of the spring 18 enables the screw sleeve 15 to cooperate with the driving thread 14 and move in the opposite direction to the initial position when the motor 4 is reversed.

[0026] A driven pulley 20 is sleeved on the outer side of the positioning shaft 13, a driving pulley 21 is fixedly connected to the outer side of the horizontal shaft 5, a transmission belt 22 is sleeved between the driven pulley 20 and the driving pulley 21, and a tightening assembly 23 for tightening the transmission belt 22 is also fixedly connected to the equipment frame 1. The tightening assembly 23 includes an adjusting rotating rod 24 rotatably connected to the equipment frame 1, and a tightening wheel 25 is rotatably connected to the end of the adjusting rotating rod 24. When the adjusting rotating rod 24 is rotated, the tightening wheel 25 rotates to apply pressure to the transmission belt 22, so that the transmission belt 22 is tightened.

[0027] The transmission between the positioning shaft 13 and the horizontal shaft 5 can be driven by a pulley, or other transmission methods, such as gear transmission or sprocket transmission. In this embodiment, a pulley transmission is specifically disclosed. The driving pulley 21 drives the driven pulley 20 to rotate through the transmission belt 22. The tensioning assembly 23 plays a role in tightening the transmission belt 22. The rotation of the adjustment lever 24 can make the tensioning wheel 25 apply pressure to the transmission belt 22 to tighten the transmission belt 22, so that the power is transmitted. The transmission belt 22 can be loosened by rotating the adjustment lever 24 in the opposite direction, so that the power transmission is disconnected. The adjustment lever 24 is rotatably connected to the equipment frame 1, and its position can be locked by threading a locking bolt on the adjustment lever 24. After adjusting to the appropriate position, tighten the locking bolt to limit the position of the adjustment lever 24; loosen the locking bolt, and the adjustment lever 24 can be rotated.

[0028] Embodiment 2: This embodiment discloses a specific structure of the cooling cover 10 based on the embodiment 1, please refer to Figure 7 and Figure 8 The cooling cover 10 includes an upper cover body 26 and a lower cover body 27, which are connected by bolts. The upper cover body 26 and the lower cover body 27 are consistent with the surface of the horizontal discharge pipe 3. The upper cover body 26 and the lower cover body 27 are provided with arc-shaped spiral grooves 28 on the inner side, and a plurality of different arc-shaped spiral grooves 28 are combined into a spiral cooling water channel.

[0029] The upper cover body 26 and the lower cover body 27 are connected by bolts to form a cooling cover 10. The inner circle of the cooling cover 10 is exactly matched with the outer wall of the horizontal discharge pipe 3 to prevent the cooling water from flowing out of the gap. The arc-shaped spiral groove 28 between the upper cover body 26 and the lower cover body 27 and the horizontal discharge pipe 3 form a spiral cooling water channel, so that the cooling water can directly contact the outer wall of the horizontal discharge pipe 3, thereby improving the efficiency of heat exchange. In addition, the cooling cover 10 can also be made in other ways. Instead of using the upper cover body 26 and the lower cover body 27 to assemble two cover bodies, it can also be assembled by combining multiple cover bodies.

[0030] Working principle: When in use, the molten powder coating needs to be placed in the longitudinal discharge pipe 2, or the longitudinal discharge pipe 2 can be directly fixed and connected to the discharge port of the melting equipment. The molten coating will flow through the longitudinal discharge pipe 2 to the transverse discharge pipe 3. Due to the different formulas of different powder coatings, their viscosities are also different. When cooling, the cooling effect needs to be adjusted according to demand. Turn on the water pump 7, the water pump 7 will absorb water through the water inlet pipe 8, and then drain the water through the water outlet pipe 9 to the inside of the cooling cover 10. There is a spiral cooling water channel inside the cooling cover 10, which will flow along the surface of the transverse discharge pipe 3 and then flow out from the return pipe 11. There are multiple return pipes 11. When flowing out from different return pipes 11, the cooling water will flow in different strokes and take away different heat, thereby achieving different cooling effects.

[0031] The touch valve 12 is used to control the return path of the cooling water, that is, to control which return pipe 11 the cooling water flows back through. The technology of the touch valve 12 is an existing technology, and various existing valves can be opened and closed by touch. The positioning shaft 13 is in transmission connection with the horizontal shaft 5. During the rotation of the horizontal shaft 5, the positioning shaft 13 can be driven to rotate, and then the driving thread 14 can be driven to rotate. The driving thread 14 drives the screw sleeve 15 to move linearly, and during the movement, the valve control rod 17 is driven to move to different touch valves 12, so that the corresponding touch valve 12 is opened, and the cooling water can flow back.

[0032] When the screw sleeve 15 moves to the farthest end, the return path of the cooling water is the longest. At this time, the transmission relationship between the positioning shaft 13 and the horizontal shaft 5 can be disconnected, so that the positioning shaft 13 stops rotating. At the same time, the positioning shaft 13 can continue to rotate, and the cooling effect is further improved by the rotation of the spiral fan blades 19. During the rotation of the spiral fan blades 19, the temperature near the cooling cover 10 can be quickly reduced to improve the cooling effect of the cooling water. The setting of the spring 18 enables the screw sleeve 15 to cooperate with the driving thread 14 and move in the opposite direction to the initial position when the motor 4 is reversed.

[0033] The transmission between the positioning shaft 13 and the horizontal shaft 5 can be driven by a pulley, or other transmission methods, such as gear transmission or sprocket transmission. In this embodiment, a pulley transmission is specifically disclosed. The driving pulley 21 drives the driven pulley 20 to rotate through the transmission belt 22. The tensioning assembly 23 plays a role in tightening the transmission belt 22. The rotation of the adjustment lever 24 can make the tensioning wheel 25 apply pressure to the transmission belt 22 to tighten the transmission belt 22, so that the power is transmitted. The transmission belt 22 can be loosened by rotating the adjustment lever 24 in the opposite direction, so that the power transmission is disconnected. The adjustment lever 24 is rotatably connected to the equipment frame 1, and its position can be locked by threading a locking bolt on the adjustment lever 24. After adjusting to the appropriate position, tighten the locking bolt to limit the position of the adjustment lever 24; loosen the locking bolt, and the adjustment lever 24 can be rotated.

[0034] The upper cover body 26 and the lower cover body 27 are connected by bolts to form a cooling cover 10. The inner circle of the cooling cover 10 is exactly matched with the outer wall of the horizontal discharge pipe 3 to prevent the cooling water from flowing out of the gap. The arc spiral groove 28 between the upper cover body 26 and the lower cover body 27 and the horizontal discharge pipe 3 form a spiral cooling water channel, so that the cooling water can directly contact the outer wall of the horizontal discharge pipe 3, thereby improving the efficiency of heat exchange.

[0035] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0036] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A powder coating extrusion device, comprising an equipment frame (1), a longitudinal discharge pipe (2) fixedly connected to the equipment frame (1), a transverse discharge pipe (3) fixedly connected to the bottom of the longitudinal discharge pipe (2), a motor (4) fixedly connected to the equipment frame (1), a horizontal rotating shaft (5) fixedly connected to the rotor of the motor (4), a discharge auger located inside the transverse discharge pipe (3) fixedly connected to the outer side of the horizontal rotating shaft (5), characterized in that: A water tank (6) is fixedly connected above the equipment frame (1), a water pump (7) is fixedly connected to the equipment frame (1), a cooling hood (10) is sleeved on the outer side of the horizontal discharge pipe (3), a water inlet of the water pump (7) is connected to the water tank (6) through a water inlet pipe (8), a water outlet of the water pump (7) is connected to the cooling hood (10) through a water outlet pipe (9), a spiral cooling water channel is arranged inside the cooling hood (10), and return pipes (11) are arranged at different positions of the spiral cooling water channel, the other end of the return pipe (11) is connected to the water tank (6), and a touch valve (12) for controlling the on and off of the return pipe (11) is connected to the middle of the return pipe (11).

2. The powder coating extrusion equipment according to claim 1, characterized in that: The equipment frame (1) is rotatably connected to a symmetrically arranged positioning shaft (13), the positioning shaft (13) being transmission-connected to the horizontal shaft (5), one of the positioning shafts (13) being fixedly connected to a driving thread (14) on the outside, the driving thread (14) being thread-connected to a screw sleeve (15) on the outside, a guide rod (16) being fixedly connected to the outside of the screw sleeve (15), the guide rod (16) being slidably connected to another positioning shaft (13), a valve control rod (17) being fixedly connected to the outside of the screw sleeve (15), the valve control rod (17) being matched with different touch valves (12), and when the valve control rod (17) is in contact with the touch valve (12), the corresponding touch valve (12) is opened.

3. The powder coating extrusion equipment according to claim 2, characterized in that: When the valve control rod (17) is engaged with the touch valve (12) farthest from the longitudinal discharge pipe (2), the screw sleeve (15) and the driving thread (14) are disengaged from the thread engagement, and a spring (18) is sleeved on the outer side of the positioning shaft (13). When the screw sleeve (15) and the driving thread (14) are disengaged from the thread engagement, the spring (18) is in a compressed state.

4. The powder coating extrusion equipment according to claim 2 or 3, characterized in that: The outer sides of the positioning shafts (13) are fixedly connected with spiral blades (19).

5. The powder coating extrusion equipment according to claim 4, characterized in that: A driven pulley (20) is sleeved on the outer side of the positioning shaft (13), a driving pulley (21) is fixedly connected to the outer side of the horizontal shaft (5), a transmission belt (22) is sleeved between the driven pulley (20) and the driving pulley (21), and a tightening assembly (23) for tightening the transmission belt (22) is also fixedly connected to the equipment frame (1).

6. The powder coating extrusion equipment according to claim 5, characterized in that: The tensioning assembly (23) comprises an adjusting rotating rod (24) rotatably connected to the equipment frame (1), and a tensioning wheel (25) is rotatably connected to the end of the adjusting rotating rod (24). When the adjusting rotating rod (24) is rotated, the tensioning wheel (25) rotates to apply pressure to the transmission belt (22), thereby tightening the transmission belt (22).

7. The powder coating extrusion equipment according to claim 1, characterized in that: The cooling cover (10) comprises an upper cover body (26) and a lower cover body (27), the upper cover body (26) and the lower cover body (27) being connected by bolts, the upper cover body (26) and the lower cover body (27) being in line with the surface of the transverse discharge pipe (3), the upper cover body (26) and the lower cover body (27) having arc-shaped spiral grooves (28) on the inner sides, and a plurality of different arc-shaped spiral grooves (28) are combined to form a spiral cooling water channel.

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