PVC plate surface finish machining equipment

Abstract

The invention discloses PVC plate surface finish machining equipment which comprises a conveying roller, a conveying belt and a machining frame, a polishing execution system is arranged in the machining frame and comprises a multi-degree-of-freedom driving device and a polishing execution assembly, and the polishing execution assembly is borne and driven by the multi-degree-of-freedom driving device. The polishing execution assembly comprises a third motor, a polishing assembly, a dust cover and a dust collection box, the output end of the third motor is fixedly connected with the polishing assembly, and the dust collection box is detachably arranged on the bottom surface of the dust cover; and generated dust is actively captured and collected in the polishing process through the polishing execution assembly. By designing the structure of the closed dust cover synchronously rotating along with the polishing wheel and the built-in vortex ring, a dynamic dust capturing cavity is formed at the moment of a polishing point, the mode of passively depending on external large-air-volume dust collection is fundamentally changed, and low-energy-consumption and high-efficiency dust capturing and collecting from the source are achieved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of PVC plate processing equipment, and particularly relates to a PVC plate surface finishing equipment. BACKGROUND

[0002] PVC plate is a honeycomb net structure plate made of polyvinyl chloride as raw material, also known as decorative film or adhesive film. The material is a vacuum suction film, which is widely used in building materials (accounting for 60%), packaging, medical and other industries, among which the building material field is mainly used for surface packaging of wood doors, wardrobes and other products.

[0003] In the surface finishing process of PVC plates and other plates, polishing is a common process. The traditional polishing equipment will generate a large amount of dust during operation, which not only pollutes the working environment and harms the health of the operators, but also affects the polishing quality of the plate surface, and even causes the precision of the equipment to decrease. In the prior art, an external dust collection system is often used to generate negative pressure by a powerful external fan to suck away the dust. However, this method has obvious disadvantages: first, there is a certain distance between the dust suction port and the polishing point, and the capture efficiency of fine dust is limited, and a large amount of dust still escapes; second, a high-power fan is usually needed to achieve the effect, which is high in energy consumption and loud in noise; third, the dust is thrown out at high speed under the centrifugal force of the polishing wheel, and the direction is random, which is not completely consistent with the direction of the negative pressure airflow of the dust suction port, resulting in low collection efficiency. In order to solve the above problems, the present application provides a PVC plate surface finishing equipment. SUMMARY

[0004] The purpose of the present application is to provide a PVC plate surface finishing equipment to solve the problems raised in the background art.

[0005] To solve the above technical problems, the present application is realized by the following technical scheme: The present application is a PVC plate surface finishing equipment, which comprises a conveying roller, a conveyor belt and a processing frame. The processing frame is fixedly installed above the conveyor belt. A polishing execution system is arranged in the processing frame. The polishing execution system comprises a multi-degree-of-freedom driving device and a polishing execution assembly. The multi-degree-of-freedom driving device is used to provide three linear motion degrees of freedom in the transverse direction parallel to the door surface of the processing frame, the longitudinal direction perpendicular to the door surface and the vertical direction. The polishing execution assembly is carried and driven by the multi-degree-of-freedom driving device. The polishing execution assembly comprises a third motor, a polishing assembly, a dust cover and a dust collection box. The output end of the third motor is fixedly connected with the polishing assembly. The dust collection box is detachably arranged on the bottom surface of the dust cover. The dust generated in the polishing process is actively captured and collected by the polishing execution assembly.

[0006] Preferably, the polishing assembly comprises a connecting plate and a flexible polishing layer fixed to the bottom surface of the connecting plate, the connecting plate is fixedly connected with the output shaft of the third motor, the inner wall bottom surface of the dust cover is fixedly provided with a flow guide ring, the flow guide ring is arranged in an inverted conical shape, the upper surface of the dust collecting box is provided with an inlet, and the position of the flow guide ring corresponds to the position of the inlet.

[0007] Preferably, the peripheral side surface of the connecting plate is fixedly connected with a vortex ring through a connecting piece, the inner wall of the vortex ring is provided with a plurality of flow guide grooves, and the flow guide grooves are used to generate upward vortex when the vortex ring rotates.

[0008] Preferably, the flow guide grooves are tangentially arranged.

[0009] Preferably, the multi-degree-of-freedom driving device comprises a transverse movement mechanism, a longitudinal movement mechanism and a vertical movement mechanism, the transverse movement mechanism comprises a first electric sliding rail fixed to the inner side of the processing frame and a first sliding block in sliding cooperation with the first electric sliding rail, the longitudinal movement mechanism comprises a second electric sliding rail fixed between the two first sliding blocks and a second sliding block in sliding cooperation with the second electric sliding rail, and the vertical movement mechanism comprises a lifting frame fixedly connected with the second sliding block, a second motor fixed to the top of the inner wall of the lifting frame, a threaded rod driven by the second motor and a lifting block in threaded cooperation with the threaded rod, and a plurality of limiting blocks fixedly connected to one side of the lifting block.

[0010] Preferably, one side of the lifting frame is provided with a plurality of limiting grooves, the limiting blocks are in sliding cooperation with the limiting grooves, and a motor support is fixedly arranged on one side of the limiting block.

[0011] Preferably, the peripheral side surface of the third motor is fixedly provided with a plurality of vibration ash removal mechanisms, the vibration ash removal mechanism comprises a connecting frame fixed to the peripheral side surface of the third motor, a sliding rod slidingly arranged on the connecting frame, a knocking block fixed to one end of the sliding rod, and a spring sleeved on the sliding rod, one end of the spring is fixedly connected with the knocking block, the other end of the spring is fixedly connected with the connecting frame, and a plurality of extrusion blocks are fixedly arranged on the peripheral side surface of the dust cover, when the dust cover rotates, the extrusion blocks periodically extrude the knocking block and compress the spring, and then the knocking block hits the dust cover under the reset force of the spring.

[0012] Preferably, the contact surfaces of the extrusion blocks and the knocking blocks are wedge-shaped inclined surfaces matched with each other.

[0013] Preferably, a plurality of flexible curtains are fixedly arranged in the inlet, and the flexible curtains are composed of a plurality of flexible strips arranged side by side.

[0014] Preferably, the bottom of the conveying roller is provided with a guide mechanism, the guide mechanism comprises a mounting frame, a bidirectional screw rod, two moving blocks and a guide wheel, one side of the mounting frame is fixedly provided with a first motor, the output end of the first motor is fixedly connected with the bidirectional screw rod, the moving blocks are threadedly connected with the bidirectional screw rod, the upper surface of the moving blocks is rotatably provided with a connecting shaft, the upper end of the connecting shaft is fixedly connected with the guide wheel, a limiting rod is also fixedly arranged in the mounting frame, one end of the limiting rod penetrates through the moving blocks, and the moving blocks and the limiting rod are in sliding fit.

[0015] The present application has the following advantages: 1. The present application forms a dynamic dust capturing cavity at the polishing point instantaneously by designing a dustproof cover rotating synchronously with the polishing wheel and a built-in vortex ring structure, uses the upward vortex generated by the vortex ring rotating spontaneously to actively suck the dust to the upper part of the cavity, and uses the centrifugal force to enrich the dust, and finally uses the gravity to collect the dust, which fundamentally changes the mode of passive dependence on external large air volume dust collection, realizes low energy consumption and high efficiency of dust capture and collection from the source, significantly reduces the energy consumption of the equipment and improves the dust collection efficiency; 2. The present application automatically converts the rotational kinetic energy of the main shaft into periodic high-frequency mechanical knocking through the innovative impact type vibration ash removal mechanism, which effectively destroys the adhesion between the dust and the inner wall of the dust cover, solves the problem of sticky dust accumulation and cleaning difficulty, ensures the long-term stable operation of the system, and reduces the maintenance requirement; 3. The present application sets up a flexible curtain in the feed inlet, which allows the dust to pass through smoothly under the action of gravity, and then closes quickly to form a physical barrier, which effectively blocks the exchange of still air inside the dust collection box and high-speed vortex air outside, fundamentally solves the problem of secondary dust raising caused by air flow disturbance, and ensures the stability of the collection effect.

[0016] Of course, any product implementing the present application does not necessarily need to achieve all the advantages described above. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creating laborious work.

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present application; Figure 2 It is a schematic diagram of the bottom side structure of the present application; Figure 3It is a right view schematic diagram of the application; Figure 4 It is a guiding mechanism structure schematic diagram of the application; Figure 5 It is an internal structure schematic diagram of the processing mechanism of the application; Figure 6 It is a polishing mechanism structure schematic diagram of the application; Figure 7 It is a polishing mechanism cross-sectional structure schematic diagram of the application; Figure 8 It is a polishing mechanism explosion structure schematic diagram of the application; Figure 9 It is an internal structure schematic diagram of the dust cover and dust collecting box of the application; Figure 10 It is a vortex ring structure schematic diagram of the application; Figure 11 It is Figure 7 It is a local enlarged structure schematic diagram at A.

[0019] In the drawings, the components represented by each reference numeral are listed as follows: 1, conveying roller; 2, conveying belt; 3, processing frame; 4, first electric sliding rail; 5, first motor; 6, mounting frame; 7, bidirectional screw rod; 8, moving block; 9, limiting rod; 10, connecting shaft; 11, guide wheel; 12, first sliding block; 13, second electric sliding rail; 14, second sliding block; 15, lifting frame; 16, second motor; 17, threaded rod; 18, lifting block; 19, motor support; 20, third motor; 21, limiting groove; 22, limiting block; 23, feeding port; 24, dust cover; 25, dust collecting box; 26, extrusion block; 27, connecting frame; 28, sliding rod; 29, spring; 30, knocking block; 31, connecting plate; 32, flexible polishing layer; 33, vortex ring; 34, flow guide ring; 35, flexible curtain; 36, flow guide groove. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application.

[0021] In the description of the application, it should be understood that the terms "upper", "middle", "outer", "inner" and the like indicate the orientation or positional relationship, and are only used to facilitate the description of the application and simplify the description, and do not indicate or imply that the indicated components or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the application.

[0022] Embodiment one: Please refer to Figures 1-4 and Figures 8-11 The present application is a kind of PVC plate surface finishing equipment, including conveying roller 1, conveyor belt 2 and processing frame 3, processing frame 3 is fixedly installed above the conveyor belt 2, polishing execution system is arranged in processing frame 3, conveying roller 1 and conveyor belt 2 are used to convey the PVC plate to be processed;To ensure that the plate is centered into the processing area, a guide mechanism is arranged at the input end of the conveying roller 1, the mechanism includes a mounting frame 6, a bidirectional screw rod 7 driven by a first motor 5, two moving blocks 8 threaded on the screw rod, and a guide wheel 11 mounted on the moving block 8 through a connecting shaft 10, a limiting rod 9 fixed in the mounting frame 6 penetrates the moving block 8, ensuring that it only makes linear motion, so that the distance between the two guide wheels 11 can be adjusted by driving the first motor 5, and the plate of different widths can be centered and guided; A multi-degree-of-freedom driving device is arranged inside the processing frame 3, which is composed of horizontal (first electric sliding rail 4 and first sliding block 12), vertical (second electric sliding rail 13 and second sliding block 14) and vertical (second motor 16, threaded rod 17 and lifting block 18) motion mechanism, which drives the polishing execution assembly to realize accurate positioning in three-dimensional space, the bottom surface of the second sliding block 14 is fixedly provided with a lifting frame 15, the second motor 16 is fixedly arranged on the top surface of the inner wall of the lifting frame 15, the output end of the second motor 16 is fixedly connected with the threaded rod 17, the lifting block 18 is arranged on the circumferential surface of the threaded rod 17, and the lifting block 18 is threadedly connected with the threaded rod 17, two limiting grooves 21 are formed in one side of the lifting frame 15, a limiting block 22 is slidably arranged in the limiting groove 21, the limiting block 22 cooperates with the limiting groove 21 to limit the lifting block 18, so as to avoid the lifting block 18 from rotating with the threaded rod 17, the lifting block 18 is fixedly connected with the limiting block 22, the other end of the limiting block 22 is fixedly provided with a motor support 19, and the third motor 20 is fixedly arranged in the motor support 19; The polishing execution assembly comprises a third motor 20, a polishing assembly, a dust cover 24 and a dust collecting box 25. The polishing assembly is composed of a connecting plate 31 and a flexible polishing layer 32 fixed to the bottom of the connecting plate 31. The connecting plate 31 is fixedly connected with the output shaft of the third motor 20. The dust cover 24 is fixed to the peripheral side surface of the output shaft of the third motor 20. The dust collecting box 25 is detachably installed at the bottom of the dust cover 24. A vortex ring 33 is fixed to the peripheral side surface of the connecting plate 31 through a connecting piece. A plurality of tangential flow guide grooves 36 are formed in the inner wall of the vortex ring 33. When the third motor 20 drives the vortex ring 33 to rotate at a high speed, the tangential flow guide grooves 36 can drive air powerfully like centrifugal fan blades, so as to form a strong upward spiral vortex in the dust cover 24. The vortex can actively and efficiently suck the dust generated by polishing from the generating point to the top area of the dust cover 24. Then, the dust is thrown to the inner wall of the dust cover 24 under the action of centrifugal force. After the polishing is stopped, the accumulated dust slides down along the wall under the action of gravity. The inverted conical flow guide ring 34 at the bottom of the inner wall of the dust cover 24 guides the falling dust to the corresponding feeding port 23 of the dust collecting box 25, so as to complete the preliminary collection.

[0023] Embodiment two On the basis of embodiment one, referring to Figures 5-7 This embodiment adds a vibration dust cleaning mechanism. The mechanism comprises a connecting frame 27 fixed to the peripheral side surface of the third motor 20, a sliding rod 28 slidingly arranged on the connecting frame 27, a knocking block 30 fixed to one end of the sliding rod 28, and a spring 29 sleeved on the sliding rod 28. One end of the spring 29 is fixedly connected with the knocking block 30, and the other end is fixedly connected with the connecting frame 27. A plurality of wedge-shaped extrusion blocks 26 are fixedly installed on the peripheral side surface of the dust cover 24. When the dust cover 24 rotates, the inclined surface of the extrusion block 26 will periodically contact and extrude the inclined surface of the knocking block 30, so as to force the knocking block 30 to compress the spring 29 and retreat backward. When the extrusion block 26 slides through the critical point, the constraint disappears, the stored energy of the spring 29 is released instantaneously, and the knocking block 30 is driven to impact the outer wall of the dust cover 24 at a high speed. The periodic high-frequency mechanical vibration generated in this process is transmitted to the entire dust cover 24, which can effectively destroy the adhesion between the dust and the inner wall of the dust cover 24, so as to avoid that the sticky dust is attached too tightly due to the action of centrifugal force or electrostatic force.

[0024] Embodiment three On the basis of embodiment one and embodiment two, referring to Figures 7-11The upper surface of the dust collecting box 25 is provided with a plurality of arc-shaped feeding ports 23, and a flexible curtain 35 is fixedly arranged in each feeding port 23. The flexible curtain 35 is composed of a plurality of parallel and dense flexible strips (such as silica gel or rubber). When the dust group shaken or slid off passes through the feeding port 23 with sufficient kinetic energy, the flexible curtain 35 is easily pushed aside and falls into the dust collecting box 25. After the dust passes through, the flexible strips quickly swing back and reset by their own gravity and elasticity, and a new tight physical barrier is formed. This barrier can increase the resistance of air flow and effectively block the exchange of relatively static air in the dust collecting box 25 and high-speed vortex air in the external dust cover 24, thereby avoiding the situation that the collected dust is stirred up again and returns to the working area.

[0025] Working principle: After the equipment is started, the conveying roller 1 and the conveying belt 2 convey the PVC plate to the processing area. In this process, the guide mechanism first plays a role: the first motor 5 drives the bidirectional screw rod 7 to rotate, and drives the two moving blocks 8 to move towards or away from each other along the limiting rod 9, so as to adjust the distance between the two guide wheels 11, and ensure that the plates with different widths can enter the processing area along the center line. Then, the multi-degree-of-freedom driving device starts to work: the first electric sliding rail 4 cooperates with the first sliding block 12 to realize horizontal positioning, the second electric sliding rail 13 cooperates with the second sliding block 14 to realize vertical positioning, and the second motor 16 cooperates with the lifting block 18 through the threaded rod 17 to realize vertical precise positioning, so that the polishing assembly accurately reaches the polishing position. The third motor 20 finally drives the connecting plate 31 and the flexible polishing layer 32 to rotate at high speed, and the surface of the plate is polished.

[0026] In the meantime of polishing, the dust control system is started simultaneously; the vortex ring 33 fixed on the connecting plate 31 rotates synchronously with the motor shaft of the third motor 20, the tangential guide grooves 36 on the inner wall of the vortex ring 33 accelerate and guide the surrounding air to form a stable upward airflow in the dust cover 24; the dust particles generated in the polishing process are sucked upward from the processing area into the upper space of the dust cover 24 by the airflow; under the action of centrifugal force, the dust particles are thrown to the inner wall of the dust cover 24 and enriched there; in order to overcome the adhesion of dust on the wall of the dust cover, the vibration dust removal mechanism works synchronously; the extrusion block 26 fixed on the outer wall of the dust cover 24 rotates with the cover body, and periodically makes a bevel contact with the knocking block 30 fixed on the shell of the third motor 20, pushing the slide rod 28 to compress the spring 29; when the extrusion block 26 passes the contact point, the spring 29 releases the stored energy instantaneously, driving the knocking block 30 to hit the outer wall of the dust cover 24 at high speed, and the vibration generated is transmitted to the inner wall, making the adhered dust loose and fall off; the loosened dust slides down along the inner wall of the dust cover 24 under the action of gravity, is guided by the inverted conical guide ring 34, and flows to the inlet 23 of the dust collecting box 25; at the inlet 23, the flexible curtain 35 is temporarily pushed aside when the dust passes through, and the dust enters the dust collecting box 25; after the dust passes through, the curtain is reset rapidly by its own gravity and elasticity, forming an airflow barrier to effectively block the exchange of air between the inside of the dust cover 24 and the inside of the dust collecting box 25, preventing the collected dust from flying again.

[0027] In the description of the present specification, the description referring to the terms "one embodiment", "an example", "a specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0028] The preferred embodiments of the application disclosed above are only used to help explain the application. The preferred embodiments do not describe all the details and limit the application to the specific embodiments described. Obviously, many modifications and changes can be made according to the content of the present specification. The present specification selects and describes these embodiments in order to better explain the principles and practical applications of the application, so that those skilled in the art can well understand and utilize the application. The application is limited only by the claims and their full scope and equivalents.

Claims

1. A PVC board surface finishing equipment, comprising a conveyor roller (1), a conveyor belt (2), and a processing frame (3), wherein the processing frame (3) is fixedly installed above the conveyor belt (2), and a polishing execution system is provided inside the processing frame (3), characterized in that: The polishing execution system includes a multi-degree-of-freedom drive device and a polishing execution assembly. The multi-degree-of-freedom drive device is used to provide three linear motion degrees of freedom in the transverse direction parallel to the processing frame (3) door surface, the longitudinal direction perpendicular to the door surface, and the vertical direction. The polishing assembly is carried and driven by a multi-degree-of-freedom drive device. The polishing assembly includes a third motor (20), a polishing component, a dust cover (24), and a dust collection box (25). The dust cover (24) is fixedly installed on the peripheral side of the output shaft of the third motor (20). The output end of the third motor (20) is fixedly connected to the polishing component. The dust collection box (25) is detachably installed on the bottom surface of the dust cover (24). The polishing assembly actively captures and collects the dust generated during the polishing process.

2. The PVC board surface finishing equipment according to claim 1, characterized in that, The polishing assembly includes a connecting plate (31) and a flexible polishing layer (32) fixed to the bottom surface of the connecting plate (31). The connecting plate (31) is fixedly connected to the output shaft of the third motor (20). A guide ring (34) is fixedly provided on the bottom surface of the inner wall of the dust cover (24). The guide ring (34) is set in an inverted cone shape. A feed inlet (23) is opened on the upper surface of the dust collection box (25). The position of the guide ring (34) corresponds to the position of the feed inlet (23).

3. The PVC board surface finishing equipment according to claim 2, characterized in that, The peripheral side of the connecting plate (31) is fixedly connected to a vortex ring (33) by a connector. The inner wall of the vortex ring (33) is provided with a plurality of guide grooves (36), which are used to generate rising vortices when the vortex ring (33) rotates.

4. The PVC board surface finishing equipment according to claim 3, characterized in that, The guide channel (36) is a channel arranged tangentially.

5. The PVC board surface finishing equipment according to claim 1, characterized in that, The multi-degree-of-freedom drive device includes a transverse motion mechanism, a longitudinal motion mechanism and a vertical motion mechanism. The transverse motion mechanism includes a first electric slide rail (4) fixed to the inner side of the processing frame (3) and a first slider (12) that slides with it. The longitudinal motion mechanism includes a second electric slide rail (13) fixed between the two first sliders (12) and a second slider (14) that slides with it. The vertical motion mechanism includes a lifting frame (15) fixedly connected to the second slider (14), a second motor (16) fixed to the top of the inner wall of the lifting frame (15), a threaded rod (17) driven by the second motor (16) and a lifting block (18) that is threaded with the threaded rod (17). A number of limiting blocks (22) are fixedly connected to one side of the lifting block (18).

6. The PVC board surface finishing equipment according to claim 5, characterized in that, The lifting frame (15) has several limiting grooves (21) on one side. The limiting block (22) slides with the limiting groove (21). A motor bracket (19) is fixedly provided on one side of the limiting block (22). The third motor (20) is fixedly installed in the motor bracket (19).

7. The PVC board surface finishing equipment according to claim 1, characterized in that, The third motor (20) is fixedly provided with several vibration cleaning mechanisms on its peripheral side. The vibration cleaning mechanism includes a connecting frame (27) fixed to the peripheral side of the third motor (20), a slide rod (28) slidably disposed on the connecting frame (27), a striking block (30) fixed to one end of the slide rod (28), and a spring (29) sleeved on the slide rod (28). One end of the spring (29) is fixedly connected to the striking block (30), and the other end of the spring (29) is fixedly connected to the connecting frame (27). The dust cover (24) is fixedly provided with several pressing blocks (26) on its peripheral side. When the dust cover (24) rotates, the pressing blocks (26) periodically press the striking blocks (30) and compress the spring (29). Then, under the action of the spring (29)'s restoring force, the striking blocks (30) strike the dust cover (24).

8. The PVC board surface finishing equipment according to claim 7, characterized in that, The contact surfaces of the extrusion block (26) and the striking block (30) are wedge-shaped inclined surfaces that cooperate with each other.

9. The PVC board surface finishing equipment according to claim 2, characterized in that, The feed inlet (23) is fixedly provided with several flexible curtains (35), which are composed of multiple flexible strips arranged side by side.

10. The PVC board surface finishing equipment according to claim 1, characterized in that, The bottom of the conveying roller (1) is provided with a guide mechanism, which includes a mounting frame (6), a bidirectional lead screw (7), two moving blocks (8) and a guide wheel (11). A first motor (5) is fixedly provided on one side of the mounting frame (6). The output end of the first motor (5) is fixedly connected to the bidirectional lead screw (7). The moving block (8) is threadedly connected to the bidirectional lead screw (7). A connecting shaft (10) is rotatably provided on the upper surface of the moving block (8). The upper end of the connecting shaft (10) is fixedly connected to the guide wheel (11). A limiting rod (9) is also fixedly provided inside the mounting frame (6). One end of the limiting rod (9) passes through the moving block (8), and the moving block (8) and the limiting rod (9) are slidably engaged.

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