Automatic polyester powder coating feeding equipment based on PLC control

Abstract

The utility model relates to automatic polyester powder coating feeding equipment based on PLC (programmable logic controller) control, which comprises a stock bin, a storage tank is arranged at the top of the stock bin, and three adjacent side walls at the bottom of the storage tank are provided with guide surfaces for guiding materials. The utility model relates to the technical field of feeding equipment. According to the polyester powder coating automatic feeding equipment based on PLC control, through the arranged spiral feeding assembly, materials in the stock bin can be carried into the feeding assembly, then the materials are fed by the feeding assembly in a divided mode, and the PLC control terminal installed on the outer wall of the stock bin can automatically control feeding of the spiral feeding assembly and feeding of the feeding assembly; when the polyester powder coating is produced, the polyester powder coating particles are automatically fed, so that the production efficiency of the polyester powder coating can be effectively improved.

Description

Technical Field

[0001] This utility model relates to the technical field of feeding equipment, and in particular to an automatic feeding equipment for polyester powder coating based on PLC control. Background Technology

[0002] Feeding equipment is a type of machinery used to efficiently transport and deliver materials (such as powders, granules, etc.) to designated locations. This type of equipment is widely used in various industries, including food, chemical, and pharmaceutical, primarily to improve production efficiency, reduce manual labor, and control dust pollution.

[0003] In existing technologies, feeding equipment typically includes a hopper, a motor, and a screw propeller, which can efficiently feed polyester resin particles into the production line. However, the total amount of material fed and the feeding time both require manual control. As the number of polyester powder coating production lines increases, the labor costs required will also increase. This will not only increase the burden on workers, but fatigued workers may also be at risk of operational errors. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an automatic feeding device for polyester powder coating based on PLC control, so as to solve the technical problems mentioned in the background art.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] An automatic feeding device for polyester powder coating based on PLC control includes a hopper, a storage trough on the top of the hopper, and a guiding surface for guiding the material on three adjacent side walls at the bottom of the storage trough.

[0007] The spiral feeding assembly is located outside the hopper. The spiral feeding assembly includes a sleeve, a spiral shaft and a drive motor. The sleeve is inclinedly mounted outside the hopper by a bracket. The feed end of the sleeve passes through the hopper and extends to the bottom of the storage tank. The discharge end of the sleeve is equipped with a drive motor. The spiral shaft is rotatably connected inside the sleeve. The end of the spiral shaft near the discharge end is fixedly connected to the output shaft of the drive motor.

[0008] The feeding component, located at the discharge end of the screw feeder, is used for quantitative feeding.

[0009] The PLC control terminal is installed on the outer wall of the silo and is used to control the operation of the screw conveyor and feeding components.

[0010] Furthermore, the feed inlet end of the sleeve is provided with protruding baffle portions on both sides of the spiral shaft, and the bottom of the baffle portions is in contact with the bottom of the storage tank.

[0011] Furthermore, the diameter of the spiral blades located at the baffle portion of the spiral shaft gradually decreases from left to right.

[0012] Furthermore, the feeding assembly includes a hopper, a feeding roller, and a feeding motor. The hopper is installed at the bottom of the discharge port of the sleeve. The feeding roller is rotatably connected inside the hopper. Multiple material distribution grooves are arranged in a ring array on the outer wall of the feeding roller. The feeding motor is fixedly connected to the outer wall of the hopper. The output shaft of the feeding motor is fixedly connected to the feeding roller.

[0013] Furthermore, two baffles are symmetrically arranged with the central axis of the feeding roller as a reference. The two baffles are fixedly connected to both sides of the inner cavity of the hopper. A pressure sensor is fixedly connected to the top of the baffle. The pressure sensor is connected to the PLC control terminal through a wire.

[0014] Furthermore, the baffle plate extends obliquely upward on the side away from the feeding roller, so that the baffle plate is inclinedly arranged in the hopper.

[0015] In summary, this utility model has at least one of the following beneficial technical effects:

[0016] 1. This PLC-controlled automatic feeding equipment for polyester powder coatings uses a spiral feeding component to move materials from the hopper into the feeding component, which then feeds the materials in portions. The PLC control terminal installed on the outer wall of the hopper can automatically control the feeding of the spiral feeding component and the feeding of the feeding component, so that polyester powder coating particles are automatically fed down during the production of polyester powder coatings, which can effectively improve the production efficiency of polyester powder coatings.

[0017] 2. This PLC-controlled automatic feeding device for polyester powder coatings features a guide surface at the bottom of the storage trough in the hopper, which gathers the material particles together, preventing blind spots during feeding by the screw feeding assembly and effectively improving material utilization. Furthermore, by incorporating a baffle on the sleeve of the screw feeding assembly and gradually reducing the diameter of the spiral blades at the end of the screw shaft, the effective feeding range of the screw shaft is maximized while avoiding contact between the spiral blades and the bottom wall of the storage trough, further enhancing material utilization efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1This is a schematic diagram of the structure of an automatic polyester powder coating feeding device based on PLC control according to this utility model.

[0020] Figure 2 This is a schematic diagram of the internal structure of the hopper in an automatic feeding device for polyester powder coating based on PLC control according to this utility model.

[0021] Figure 3 This is a top-view structural diagram of the hopper in an automatic feeding device for polyester powder coating based on PLC control, according to this utility model.

[0022] Figure 4 This is a schematic diagram of the spiral feeding component in an automatic polyester powder coating feeding device based on PLC control according to this utility model.

[0023] Figure 5 This is a schematic diagram of the feeding component in an automatic feeding device for polyester powder coating based on PLC control, according to this utility model.

[0024] In the diagram, 1. hopper; 2. screw feeding assembly; 21. sleeve; 22. screw shaft; 23. drive motor; 3. feeding assembly; 31. hopper; 32. feeding roller; 33. feeding motor; 4. PLC control terminal; 5. storage tank; 6. guide surface; 7. bracket; 8. feed end; 9. discharge end; 10. baffle section; 11. distribution trough; 12. baffle plate; 13. pressure sensor. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings.

[0026] Example:

[0027] Reference Figure 1 - Figure 5 The present invention discloses an automatic feeding device for polyester powder coating based on PLC control, including a hopper 1, a storage trough 5 on the top of the hopper 1, and a guiding surface 6 for guiding material on three adjacent side walls at the bottom of the storage trough 5.

[0028] The spiral feeding assembly 2 is located outside the hopper 1. The spiral feeding assembly 2 includes a sleeve 21, a spiral shaft 22 and a drive motor 23. The sleeve 21 is inclinedly mounted outside the hopper 1 by a bracket 7. The feed end 8 of the sleeve 21 passes through the hopper 1 and extends to the bottom of the storage tank 5. The discharge end 9 of the sleeve 21 is equipped with the drive motor 23. The spiral shaft 22 is rotatably connected inside the sleeve 21. The end of the spiral shaft 22 near the discharge end 9 is fixedly connected to the output shaft of the drive motor 23.

[0029] The feeding component 3 is located at the discharge end 9 of the screw feeding component 2 and is used for quantitative feeding.

[0030] The PLC control terminal 4 is installed on the outer wall of the silo 1 and is used to control the operation of the screw feeder 2 and the feeding assembly 3.

[0031] In this embodiment, observation Figure 1 It can be seen that by opening a storage trough 5 at the top of the material yard 1, and by mounting a spiral feeding assembly 2 at an angle on the outside of the silo 1 via a support 7, the feeding end 8 of the spiral feeding assembly 2 extends into the silo 1, and the discharge end 9 of the spiral feeding assembly 2 is equipped with a feeding assembly 3. The polyester powder coating particles in the silo 1 can be transported to the discharge end 9 by the spiral feeding assembly 2, and then quantitatively fed by the feeding assembly 3 to realize the feeding of polyester powder coating.

[0032] And in Figure 1 It can also be found that a PLC control terminal 4 is installed on the outer wall of the silo 1. The PLC control terminal 4 can be pre-programmed and automatically control the operation of the screw feeding component 2 and the feeding component 3 to realize the automatic feeding of polyester powder coating particles.

[0033] When polyester powder coating needs to be produced, the PLC control terminal 4 is activated. The PLC control terminal 4 transmits an electrical signal to the screw feeding assembly 2 through wires, causing the screw feeding assembly 2 to transport the polyester powder coating particles in the hopper 1 to the discharge end 9. Subsequently, the material will accumulate in the feeding assembly 3 under the action of gravity. Finally, the PLC control terminal 4 transmits an electrical signal to the feeding assembly 3 through wires, causing the feeding assembly 3 to quantitatively feed the polyester powder coating particles inside, thereby realizing the automatic feeding operation of polyester powder coating production.

[0034] Because the spiral feeding assembly 2 is tilted to facilitate the transport of polyester powder coating particles from a lower to a higher position for subsequent feeding, a feeding blind zone is created between the feed end 8 of the spiral feeding assembly 2 and the bottom of the storage tank 5 of the silo 1. This affects the material utilization rate in the storage tank 5. The conventional method is to have a discharge port at the bottom of the silo 1 and install the spiral feeding assembly 2 at the bottom of the discharge port to avoid material residue in the storage tank 5. However, this method requires an additional step of aligning the spiral feeding assembly 2 with the discharge port during the installation of the automatic feeding equipment to prevent material particles from leaking from the installation location, which increases the installation difficulty of the automatic feeding equipment.

[0035] Therefore, observe Figure 2 and Figure 3It can be observed that by providing guiding surfaces 6 for guiding materials on three adjacent side walls at the bottom of the storage tank 5, and by including a sleeve 21, a spiral shaft 22, and a drive motor 23 in the spiral feeding assembly 2, the sleeve 21 is inclinedly mounted outside the hopper 1 by a bracket 7. The feed end 8 of the sleeve 21 passes through the hopper 1 and extends to the bottom of the storage tank 5. The discharge end 9 of the sleeve 21 is equipped with a drive motor 23. The spiral shaft 22 is rotatably connected inside the sleeve 21. The end of the spiral shaft 22 near the discharge end 9 is fixedly connected to the output shaft of the drive motor 23. This allows the material to actively converge at the feed end 8 of the sleeve 21 under the guidance of the guiding surfaces 6, thereby improving the material utilization rate.

[0036] Since the sleeve 21 is inserted into the hopper 1 at an angle, the material accumulated in the installation gap area between the sleeve 21 and the hopper 1 will fall vertically under the action of gravity. The material falling on the inclined surface of the sleeve 21 will move away from the installation gap under the guidance of the inclined surface. Therefore, the installation method of inserting the sleeve 21 into the hopper 1 can also effectively prevent the material from leaking through the installation gap, and further improve the practicality of the automatic feeding equipment.

[0037] In a further preferred embodiment of this utility model, such as Figure 2 and Figure 4 As shown, the feed inlet end of the sleeve 21 is provided with protruding baffle portions 10 on both sides of the spiral shaft 22, and the bottom of the baffle portions 10 is in contact with the bottom of the storage tank 5.

[0038] The diameter of the spiral blade of the spiral shaft 22 located at the position of the baffle portion 10 gradually decreases from left to right.

[0039] In this embodiment, by setting the guide surface 6, the material in the storage tank 5 can actively gather at the feed end 8 of the sleeve 21. However, due to the inclined setting of the sleeve 21, there is an angle between the cross section of the feed end 8 and the storage tank 5, which will prevent a small part of the material in the angle from being transported.

[0040] Therefore, observe Figure 4 It can be observed that the diameter of the spiral blade of the spiral shaft 22 located at the baffle part 10 gradually decreases from left to right, so as to maximize the effective feeding range of the spiral shaft 22 while avoiding the spiral blade from colliding with the bottom wall of the storage tank 5.

[0041] Then combine Figure 2 and Figure 4 It can be seen that the feed inlet end of the sleeve 21 is provided with protruding baffles 10 on both sides of the spiral shaft 22. The bottom of the baffles 10 is in contact with the bottom of the storage tank 5, which can prevent the material from leaking out through both sides of the spiral shaft 22 when feeding, effectively ensuring the feeding effect and further improving the handling effect of polyester powder coating particles.

[0042] In a further preferred embodiment of this utility model, such as Figure 5 As shown, the feeding assembly 3 includes a hopper 31, a feeding roller 32, and a feeding motor 33. The hopper 31 is installed at the bottom of the discharge port of the sleeve 21. The feeding roller 32 is rotatably connected inside the hopper 31. Multiple material distribution grooves 11 are arranged in a ring array on the outer wall of the feeding roller 32. The feeding motor 33 is fixedly connected to the outer wall of the hopper 31. The output shaft of the feeding motor 33 is fixedly connected to the feeding roller 32.

[0043] In this embodiment, since the automatic feeding equipment requires the material to be fed into the feeding assembly 3 by the screw feeding assembly 2 first, and then quantitatively fed by the feeding assembly 3, the observation... Figure 5 It can be seen that the feeding component 3 includes a hopper 31, a feeding roller 32, and a feeding motor 33. The hopper 31 is installed at the bottom of the discharge port of the sleeve 21. The feeding roller 32 is rotatably connected inside the hopper 31. Multiple material distribution slots 11 are arranged in a ring array on the outer wall of the feeding roller 32. The feeding motor 33 is fixedly connected to the outer wall of the hopper 31. The output shaft of the feeding motor 33 is fixedly connected to the feeding roller 32, which can fill the material distribution slots 11 with the material entering the hopper 31. Then, the feeding roller 32 is rotated under the drive of the feeding motor 33, so that the material distribution slots 11 containing the material can be fed down in portions, thereby realizing automatic feeding of materials.

[0044] In a further preferred embodiment of this utility model, such as Figure 5 As shown, two baffle plates 12 are symmetrically arranged with the central axis of the feeding roller 32 as the reference. The two baffle plates 12 are respectively fixedly connected to both sides of the inner cavity of the hopper 31. A pressure sensor 13 is fixedly connected to the top of the baffle plate 12. The pressure sensor 13 is connected to the PLC control terminal 4 through a wire.

[0045] The baffle plate 12 extends obliquely upward on the side away from the feeding roller 32, so that the baffle plate 12 is inclinedly arranged in the hopper 1.

[0046] In this embodiment, since the feeding roller 32 needs to rotate, a gap is left between the feeding roller 32 and the inner wall of the hopper 31 to avoid frictional damage. However, this gap can cause material to leak out. Therefore, to prevent leakage, observation is necessary. Figure 5 It can be seen that two baffle plates 12 are symmetrically arranged with the central axis of the feeding roller 32 as the reference. The two baffle plates 12 are fixedly connected to both sides of the inner cavity of the hopper 31, and the baffle plates 12 can be used to prevent the material from spilling.

[0047] However, the baffle plate 12 prevents material falling on it from entering the distribution trough 11, thus affecting material utilization. Therefore, observation is needed. Figure 5It can be seen that the side of the baffle plate 12 away from the feeding roller 32 extends obliquely upward, so that the baffle plate 12 is set at an angle in the hopper 1. At this time, the material will enter the distribution trough 11 under the guidance of the inclined surface, thereby ensuring the utilization rate of the material.

[0048] And through Figure 5 It can also be seen that a pressure sensor 13 is fixedly connected to the top of the baffle plate 12. The pressure sensor 13 is connected to the PLC control terminal 4 through a wire. The pressure sensor 13 can be used to detect the amount of material in the hopper 31. When the material is lower than the warning value, causing the pressure on the pressure sensor 13 to weaken, the pressure sensor 13 will send an electrical signal to the PLC control terminal 4, so that the PLC control terminal 4 controls the screw feeding assembly 2 to transport the material in the hopper 1 into the hopper 31, thereby replenishing the hopper 31 and effectively improving the feeding stability of the automatic feeding equipment.

[0049] The implementation principle of the above embodiment is as follows: first, polyester powder coating particles are loaded into the storage tank 5 of the silo 1, then the PLC control terminal 4 is turned on, so that the PLC control terminal 4 sends an electrical signal to the screw feeding component 2, and the screw feeding component 2 is used to move the material into the feeding component 3. Finally, the material can be fed in portions through the feeding component 3 to realize the automation of polyester powder coating particle feeding.

[0050] When the material in the feeding component 3 is low, the pressure sensor 13 located in the feeding component 3 will send a signal to the PLC control terminal 4, so that the PLC control terminal 4 controls the screw feeding component 2 to replenish the feeding component 3, thereby realizing automated replenishment.

[0051] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. An automatic feeding device for polyester powder coating based on PLC control, characterized in that, It includes a hopper (1), a storage trough (5) is provided on the top of the hopper (1), and three adjacent side walls at the bottom of the storage trough (5) are provided with a guide surface (6) for guiding the material. The spiral feeding assembly (2) is set outside the silo (1). The spiral feeding assembly (2) includes a sleeve (21), a spiral shaft (22) and a drive motor (23). The sleeve (21) is inclinedly mounted outside the silo (1) by a bracket (7). The feed end (8) of the sleeve (21) passes through the silo (1) and extends to the bottom of the storage tank (5). The discharge end (9) of the sleeve (21) is equipped with a drive motor (23). The spiral shaft (22) is rotatably connected inside the sleeve (21). The end of the spiral shaft (22) near the discharge end (9) is fixedly connected to the output shaft of the drive motor (23). The feeding component (3) is set at the discharge end (9) of the screw feeding component (2) and is used for quantitative feeding; The PLC control terminal (4) is installed on the outer wall of the silo (1) and is used to control the operation of the screw feeding assembly (2) and the feeding assembly (3).

2. The automatic polyester powder coating feeding device based on PLC control according to claim 1, characterized in that, The feed inlet end of the sleeve (21) is provided with a baffle (10) formed by protrusions on both sides of the spiral shaft (22), and the bottom of the baffle (10) is in contact with the bottom of the storage tank (5).

3. The automatic feeding device for polyester powder coating based on PLC control according to claim 2, characterized in that, The diameter of the spiral blade of the spiral shaft (22) located at the position of the baffle (10) gradually decreases from left to right.

4. The automatic feeding device for polyester powder coating based on PLC control according to claim 3, characterized in that, The feeding assembly (3) includes a hopper (31), a feeding roller (32) and a feeding motor (33). The hopper (31) is installed at the bottom of the discharge port of the sleeve (21). The feeding roller (32) is rotatably connected inside the hopper (31). Multiple material distribution grooves (11) are arranged in a ring array on the outer wall of the feeding roller (32). The feeding motor (33) is fixedly connected to the outer wall of the hopper (31). The output shaft of the feeding motor (33) is fixedly connected to the feeding roller (32).

5. The automatic polyester powder coating feeding device based on PLC control according to claim 4, characterized in that, Two baffles (12) are symmetrically arranged with the central axis of the feeding roller (32) as the reference. The two baffles (12) are fixedly connected to the two sides of the inner cavity of the hopper (31). A pressure sensor (13) is fixedly connected to the top of the baffle (12). The pressure sensor (13) is connected to the PLC control terminal (4) through a wire.

6. The automatic polyester powder coating feeding device based on PLC control according to claim 5, characterized in that, The baffle plate (12) extends obliquely upward on the side away from the feeding roller (32) so that the baffle plate (12) is inclinedly arranged in the hopper (1).

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