Spraying equipment and method for coating inner wall of grooved pipe fittings with plastic

Abstract

The present invention relates to the technical field of spraying equipment, and specifically to a spraying equipment and method for coating the inner wall of a grooved pipe fitting with plastic, comprising a processing table, a support seat and a support cylinder, and also comprising an operating component; the operating component comprises a splicing guide rail, a ring frame, a rotating sleeve, a nozzle, a spraying component, a traveling component and a connecting component; the two splicing guide rails are connected to the processing table through two corresponding groups of connecting components, the ring frame is sleeved on the splicing guide rails, the rotating sleeve is rotatably installed on the ring frame, the nozzle is connected to the rotating sleeve through the spraying component, the spraying component is connected to the rotating sleeve, the traveling component is connected to the ring frame, and the connecting component is connected to the processing table. The provided components can eliminate the need for secondary or even multiple adjustments when spraying the inner wall of a bent grooved pipe fitting, and the plastic coating spraying of the inner wall of the grooved pipe fitting can be completed directly at one time, so that the overall spraying efficiency is higher in actual operation.

Description

Technical Field

[0001] The present invention relates to the technical field of spraying equipment, and in particular to a spraying equipment and method for coating the inner wall of a grooved pipe with plastic. Background Art

[0002] Grooved pipe fittings are a type of pipe fittings that use clamp connection technology to achieve quick connection of pipes. Grooved pipe fittings usually need to be plastic coated on the inner wall of the pipe when in actual use. By forming a plastic protective layer on the inner wall of the grooved pipe fitting, it combines the strength of metal with the corrosion resistance, wear resistance, and smoothness of plastic.

[0003] Due to the differences in shape and size of existing grooved pipe fittings, it is difficult to achieve plastic coating on the inner wall of the bent pipe fittings in one go. It is often necessary to use multiple combined spraying to spray the inner wall of the grooved pipe fittings. Multiple combined spraying requires multiple adjustments to the spraying angle of the spraying equipment and the clamping and fixing position of the pipe fittings, which makes the actual spraying operation more cumbersome and thus reduces the overall spraying efficiency. Summary of the Invention

[0004] The purpose of the present invention is to provide a spraying device and method for coating the inner wall of a grooved pipe fitting with plastic. The device and method can directly complete the plastic coating spraying of the inner wall of the grooved pipe fitting in one go by providing a component without the need for secondary or even multiple adjustments when spraying the inner wall of the bent grooved pipe fitting, thereby increasing the overall spraying efficiency in actual operation.

[0005] To achieve the above-mentioned object, the present invention provides a spraying device and method for coating the inner wall of a grooved pipe with plastic, comprising a processing table, a support seat, and a support cylinder, wherein the support seat is slidably mounted on the processing table, the output end of the support cylinder is connected to the support seat, and the support cylinder is fixedly mounted on the processing table, and further comprising an operating assembly;

[0006] The operating assembly includes a splicing guide rail, a collar frame, a rotating sleeve, a nozzle, a spraying component, a traveling component and a connecting component;

[0007] There are two splicing guide rails in total, and the two splicing guide rails are connected to the processing table through two corresponding groups of connecting components. The ring frame is mounted on the splicing guide rail, and the rotating sleeve is rotatably installed on the ring frame. The nozzle is connected to the rotating sleeve through the spraying component, and the spraying component is connected to the rotating sleeve for spraying the plastic coating raw material from the nozzle. The traveling component is connected to the ring frame for driving the ring frame to move on the splicing guide rail, and the connecting component is connected to the processing table for driving the corresponding splicing guide rail to move and adjust.

[0008] In which, the spraying component includes a storage box, a connecting duct, an extrusion frame, an internal gear rotation mechanism, a driving component and an adjustment component, the storage box is fixedly installed on one side of the rotating sleeve; one side of the connecting duct is connected to the nozzle, and the other side of the connecting duct is connected to the storage box; the extrusion frame is connected to the storage box; the internal gear rotation mechanism is connected to the ring frame for driving the rotating sleeve; the driving component is connected to the extrusion frame for moving in the storage box by driving the extrusion frame; the adjustment component is connected to the nozzle for adjusting the spraying distance of the nozzle.

[0009] Among them, the traveling component includes a clamping wheel, a guide wheel, a guide gear table, a belt gear and a gear driving component. Two groups of the clamping wheels are rotatably installed on the upper and lower sides of the inner ring of the ring frame; two groups of the guide wheels are rotatably installed on the left and right sides of the inner ring of the ring frame; multiple guide gear tables are fixedly installed on the splicing guide rail; the belt gear is rotatably installed on the side of the ring frame close to the splicing guide rail; the gear driving component is connected to the belt gear for driving the belt gear.

[0010] Wherein, the connecting component includes a guide bracket, a driving screw and a driving motor, the guide bracket is connected to the splicing guide rail and is slidably installed on the processing table; the driving screw is threadedly connected to the guide bracket and is rotatably installed on the processing table; the output shaft of the driving motor is connected to the driving screw, and the driving motor is fixedly installed on the processing table.

[0011] Among them, the driving component includes an internal gear rack, a driving gear and a driving motor. The internal gear rack is fixedly connected to the extrusion rack and is rotatably mounted on the rotating sleeve; the driving gear is engaged with the internal gear rack and is rotatably mounted on the rotating sleeve; the output shaft of the driving motor is connected to the driving gear, and the driving motor is fixedly mounted on the rotating sleeve.

[0012] Among them, the adjustment component includes a guide bracket, an adjustment bracket, an adjustment screw and an adjustment motor, the guide bracket is fixedly mounted on the rotating sleeve; the adjustment bracket is slidably mounted on the guide bracket; the adjustment screw is threadedly connected to the adjustment bracket and is rotatably mounted on the guide bracket; the output shaft of the adjustment screw is connected to the adjustment screw, and the adjustment motor is fixedly mounted on the guide bracket.

[0013] Among them, the gear driving component includes a set gear, an intermediate gear, a driving gear and a rotating motor, the set gear is fixedly sleeved on one side of the gear; the intermediate gear is engaged with the set gear and is rotatably installed in the ring frame; the driving gear is engaged with the intermediate gear and is rotatably installed on one side of the ring frame; the output shaft of the rotating motor is connected to the driving gear, and the rotating motor is fixedly installed on one side of the ring frame.

[0014] Among them, the operating component also includes a clamping bracket, a clamping cylinder, a clamping plate and a tightening member. The clamping bracket is slidably installed on the processing table; the output end of the clamping cylinder is connected to the clamping bracket, and the clamping cylinder is fixedly installed on the processing table; the clamping plate is fixedly installed on each of the clamping brackets; the tightening member is connected to the clamping bracket and is used to limit the corresponding two sides of the clamped groove pipe.

[0015] In which, the tightening member includes a support plate, a double-headed screw and a locking motor, and two support plates are slidably installed on each of the clamping brackets; the double-headed screw is rotatably installed on the clamping bracket, and the two sides of the double-headed screw are respectively threadedly connected to the two support plates; the output shaft of the locking motor is connected to the double-headed screw, and the locking motor is fixedly installed on one side of the clamping bracket.

[0016] The present invention provides a spraying device and method for coating the inner wall of a grooved pipe fitting. During actual operation, the workpiece to be sprayed on the inner wall can be first placed on the support seat, and then the support height of the support seat can be adjusted by the support cylinder. After the workpiece is placed, the two splicing guide rails can be spliced ​​through the connecting component to form a complete track with an arc. The ring frame arranged on the splicing guide rail slides on the complete track composed of the two splicing guide rails through the traveling component. Under the guidance of the ring frame, the spray head can cooperate with the spraying component and the rotating sleeve to spray the inner wall of the grooved pipe fitting with plastic, so that the provided component does not need to be adjusted twice or even multiple times when spraying the inner wall of the bent grooved pipe fitting, and the plastic spraying of the inner wall of the grooved pipe fitting can be completed directly at one time, so that the overall spraying efficiency is higher during actual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art.

[0018] Figure 1 It is a schematic structural diagram of the entire spraying equipment for coating the inner wall of a grooved pipe according to the present invention.

[0019] Figure 2 It is a schematic diagram of the installation structure of the support base of the present invention.

[0020] Figure 3 It is a schematic diagram of the installation structure of the collar frame of the present invention.

[0021] Figure 4 It is a schematic diagram of the installation structure of the nozzle of the present invention.

[0022] Figure 5 The present invention Figure 4 Enlarged view of point A.

[0023] Figure 6 It is a schematic structural diagram of a cutaway rotating sleeve of the present invention.

[0024] Figure 7 The present invention Figure 6 Enlarged view of point B.

[0025] Figure 8 It is a schematic structural diagram of a cutaway ring frame of the present invention.

[0026] Figure 9 The present invention Figure 8 Enlarged view of point C.

[0027] Figure 10 It is a schematic diagram of the installation structure of the internal gear rack of the present invention.

[0028] Figure 11 The present invention Figure 10 Enlarged view of point D.

[0029] Figure 12 It is a structural schematic diagram of the extrusion frame of the present invention in the extrusion state.

[0030] Figure 13 The present invention is a flow chart of a spray coating method for coating the inner wall of a grooved pipe with plastic.

[0031] In the figure: 101-processing table, 102-support seat, 103-support cylinder, 104-joining guide rail, 105-ring frame, 106-rotating sleeve, 107-spray head, 201-storage box, 202-connecting duct, 203-extrusion frame, 204-internal gear rotation mechanism, 301-clamping wheel, 302-guide wheel, 303-guide gear table, 304-gear, 401-guide bracket, 402-drive screw, 403-drive Motor, 501-internal gear rack, 502-driving gear, 503-driving motor, 601-guide bracket, 602-adjusting bracket, 603-adjusting screw, 604-adjusting motor, 701-set gear, 702-intermediate gear, 703-driving gear, 704-rotating motor, 801-clamping bracket, 802-clamping cylinder, 803-clamping plate, 901-support plate, 902-double-headed screw, 903-locking motor. DETAILED DESCRIPTION

[0032] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0033] In the description of the present invention, it should be understood that “plurality” means two or more than two, unless otherwise clearly defined.

[0034] See also Figures 1 to 12The present invention provides a spraying device and method for coating the inner wall of a grooved pipe: comprising a processing table 101, a support seat 102, a support cylinder 103 and an operating component, the operating component comprising a splicing guide rail 104, a collar frame 105, a rotating sleeve 106, a nozzle 107, a spraying component, a traveling component and a connecting component, the spraying component comprising a storage box 201, a connecting conduit 202, an extrusion frame 203, a driving component and an adjustment component, the traveling component comprising a guide gear table 303, a gear 304 and a gear driving component, the connecting component comprising a guide bracket 401, a driving screw 402 and a driving motor 403, the driving component comprising an internal gear frame 501, a driving gear 502 and a driving motor 50 3. The adjustment component includes a guide bracket 601, an adjustment bracket 602, an adjustment screw 603 and an adjustment motor 604, and the gear driving component includes a set gear 701, an intermediate gear 702, a driving gear 703 and a rotating motor 704. The above-mentioned solution solves the problem that due to the differences in shape and size of existing grooved pipes, it is difficult to achieve plastic coating spraying on the inner wall of the bent pipe at one time when spraying. It is often necessary to use multiple combined spraying to spray the inner wall of the grooved pipe. Multiple combined spraying requires multiple corresponding adjustments to the spraying angle of the spraying equipment and the clamping and fixing position of the pipe, which makes the operation more cumbersome during actual spraying, thereby reducing the overall spraying efficiency.

[0035] Furthermore, the support seat 102 is slidably mounted on the processing table 101, the output end of the support cylinder 103 is connected to the support seat 102, the support cylinder 103 is fixedly mounted on the processing table 101, and a total of two splicing guide rails 104 are provided, and the two splicing guide rails 104 are connected to the processing table 101 through two corresponding groups of connecting components, the ring frame 105 is sleeved on the splicing guide rails 104, and the rotating sleeve 106 is rotatably mounted on the ring frame 105, the nozzle 107 is connected to the rotating sleeve 106 through the spraying component, and the spraying component is connected to the rotating sleeve 106 for spraying the plastic coating raw material from the nozzle 107, the traveling component is connected to the ring frame 105 for driving the ring frame 105 to move on the splicing guide rail 104, and the connecting component is connected to the processing table 101 for driving the corresponding splicing guide rail 104 to move and adjust.

[0036] Specifically, the processing table 101 is provided with a supporting boss for cooperating with the support seat 102. The support seat 102 is driven by the support cylinder 103. The workpiece that needs to be plastic-coated and sprayed can be placed on the support seat 102, and then the support height of the support seat 102 can be adjusted by the support cylinder 103 according to the actual size of the workpiece.

[0037] Two identical splicing guide rails 104 are installed on the processing table 101 through the setting of the connecting component. The connection point of the two splicing guide rails 104 is a curve turning point. When the two splicing guide rails 104 are spliced ​​together, a complete track in a bent state can be formed. The track spliced ​​by the two splicing guide rails 104 is located inside the corresponding processing workpiece, and the splicing point of the two splicing guide rails 104 also corresponds to the corresponding bending point of the groove pipe. In this way, when the ring frame 105 slides on the splicing guide rail 104 through the traveling component, the nozzle 107 set on the ring frame 105 can cooperate with the spraying component and the rotating sleeve 106 to perform corresponding spraying on the inside of the workpiece.

[0038] During actual operation, the workpiece that needs to be sprayed on the inner wall can be placed on the support seat 102 first, and then the support height of the support seat 102 can be adjusted by the support cylinder 103. After the workpiece is placed, the two splicing guide rails 104 can be spliced ​​through the connecting component to form a complete track with an arc. The ring frame 105 arranged on the splicing guide rail 104 slides on the complete track composed of the two splicing guide rails 104 through the traveling component. Under the guidance of the ring frame 105, the nozzle 107 can cooperate with the spraying component and the rotating sleeve 106 to spray the plastic on the inner wall of the groove pipe fitting, so that the provided component does not need to be adjusted twice or even multiple times when spraying the inner wall of the bent groove pipe fitting, and the plastic spraying of the inner wall of the groove pipe fitting can be completed directly at one time, so that the overall spraying efficiency is higher during actual operation.

[0039] Furthermore, the material storage box 201 is fixedly mounted on one side of the rotating sleeve 106; one side of the connecting conduit 202 is connected to the nozzle 107, and the other side of the connecting conduit 202 is connected to the material storage box 201; the extrusion frame 203 is connected to the material storage box 201; the internal gear rotation mechanism 204 is connected to the ring frame 105 for driving the rotating sleeve 106; the driving component is connected to the extrusion frame 203 for driving the extrusion frame 203 to move in the material storage box 201; the adjustment component is connected to the nozzle 107 for adjusting the spraying distance of the nozzle 107.

[0040] Furthermore, the inner gear rack 501 is fixedly connected to the extrusion rack 203 and is rotatably mounted on the rotating sleeve 106; the driving gear 502 is engaged with the inner gear rack 501 and is rotatably mounted on the rotating sleeve 106; the output shaft of the driving motor 503 is connected to the driving gear 502, and the driving motor 503 is fixedly mounted on the rotating sleeve 106.

[0041] Furthermore, the guide bracket 601 is fixedly mounted on the ring bracket 105; the adjustment bracket 602 is slidably mounted on the rotating sleeve 106; the adjustment screw 603 is threadedly connected to the adjustment bracket 602 and is rotatably mounted on the guide bracket 601; the output shaft of the adjustment screw 603 is connected to the adjustment screw 603, and the adjustment motor 604 is fixedly mounted on the guide bracket 601.

[0042] When this embodiment is in use, the rotating sleeve 106 is rotatably arranged on the ring frame 105, and the rotating sleeve 106 is driven by the internal gear rotating mechanism 204 arranged on the ring frame 105. The internal gear rotating mechanism 204 is composed of an internal gear ring and a gear motor that drives the internal gear ring to rotate. The internal gear ring is driven to rotate by the corresponding gear motor, and then the rotating sleeve 106 arranged on the ring frame 105 is driven to rotate by the internal gear ring, so that the rotation of the rotating sleeve 106 drives the spray head 107 to effectively and comprehensively spray the inner wall of the pipe. The ring frame 105 is provided with a corresponding protective shell at the position where the internal gear rotating mechanism 204 is installed, so as to affect the normal operation and use of the internal driving structure and the motor during the spraying process.

[0043] The storage box 201 is fixedly installed on the side of the rotating sleeve 106, and the corresponding plastic coating raw materials are stored inside the storage box 201. The discharge port of the storage box 201 is connected to the feed port of the nozzle 107 through the connecting conduit 202, and the extrusion frame 203 is set on the storage box 201.

[0044] The extrusion rack 203 is composed of corresponding extrusion columns and connecting plates. The extrusion columns provided on the extrusion rack 203 are adapted to the storage ring groove inside the storage box 201. When the extrusion rack 203 rotates, the extrusion columns provided on the extrusion rack 203 can extrude the plastic coating raw material in the storage box 201, and then enter the nozzle 107 through the connecting conduit 202, and finally spray the plastic coating raw material out through the nozzle 107.

[0045] The connecting conduit 202 is reserved with a certain length to accommodate the adjustment of the nozzle 107. The nozzle 107 is arranged on the adjustment bracket 602. The adjustment bracket 602 is slidably arranged on the guide bracket 601. The guide bracket 601 is provided with the corresponding adjustment screw 603. The adjustment screw 603 is adapted to the threaded hole provided on the bottom plate of the adjustment bracket 602. The adjustment screw 603 is fixed to the output shaft of the adjustment motor 604. When the adjustment motor 604 drives the adjustment screw 603 to rotate, the adjustment bracket 602 can be moved on the guide bracket 601 through the rotation of the adjustment screw 603, thereby adjusting the spraying position of the nozzle 107.

[0046] The inner gear rack 501 is connected to the connecting plate of the extrusion rack 203. The inner gear rack 501 is annular and is provided with corresponding internal tooth grooves. The driving gear 502 is convenient for matching the internal tooth grooves provided on the inner gear rack 501. The driving gear 502 is driven by the driving motor 503. When the driving motor 503 drives the driving gear 502 to rotate, the driving gear 502 can drive the extrusion rack 203 by driving the inner gear rack 501, thereby realizing the extrusion of the raw materials inside the storage box 201. The rotating sleeve 106 is provided with a corresponding protective shell at the position where the extrusion rack 203 and the corresponding driving structure are installed, thereby ensuring the long-term stable operation of the corresponding structure.

[0047] Furthermore, two groups of the clamping wheels 301 are rotatably mounted on the upper and lower sides of the inner ring of the ring frame 105; two groups of the guide wheels 302 are rotatably mounted on the left and right sides of the inner ring of the ring frame 105; multiple guide gear platforms 303 are fixedly mounted on the splicing guide rail 104; the belt gear 304 is rotatably mounted on the side of the ring frame 105 close to the splicing guide rail 104; the gear driving component is connected to the belt gear 304 for driving the belt gear 304.

[0048] Furthermore, the set gear 701 is fixedly mounted on one side of the gear 304; the intermediate gear 702 is engaged with the set gear 701 and is rotatably mounted in the ring frame 105; the driving gear 703 is engaged with the intermediate gear 702 and is rotatably mounted on one side of the ring frame 105; the output shaft of the rotating motor 704 is connected to the driving gear 703, and the rotating motor 704 is fixedly mounted on one side of the ring frame 105.

[0049] When this embodiment is in use, the two groups of clamping wheels 301 provided on the upper and lower sides of the inner ring of the collar frame 105 cooperate with the upper and lower end faces of the corresponding splicing guide rail 104. At the same time, the two groups of guide wheels 302 provided on the left and right sides of the inner ring of the collar frame 105 are adapted to the guide rail grooves on both sides of the splicing guide rail 104, so that the collar frame 105 can move stably on the splicing guide rail 104.

[0050] The splicing guide rail 104 is provided with a number of guide gear platforms 303 at specified intervals, and the inner ring upper side wall of the ring frame 105 is rotatably provided with the gear 304. A number of gear platforms are provided on the outside of the gear 304. The ring frame 105 can be driven to move on the splicing guide rail 104 by the multiple gear platforms on the outside of the gear 304 cooperating with the several guide gear platforms 303 provided on the splicing guide rail 104, thereby completing the driving of the ring frame 105, and the gear 304 is driven by the gear driving component.

[0051] The set gear 701 in the gear driving component is fixedly mounted on the guide column on the side of the belt gear 304, and the driving gear 703 is rotatably set in the ring frame 105. The driving gear 703 is driven by the rotating motor 704, and the set gear 701 follows the driving gear 703 to rotate through the intermediate gear 702, thereby completing the driving of the belt gear 304.

[0052] Furthermore, the guide bracket 401 is connected to the splicing guide rail 104 and is slidably installed on the processing table 101; the driving screw 402 is threadedly connected to the guide bracket 401 and is rotatably installed on the processing table 101; the output shaft of the driving motor 403 is connected to the driving screw 402, and the driving motor 403 is fixedly installed on the processing table 101.

[0053] When this embodiment is in use, the guiding bracket 401 is fixed to the splicing guide rail 104 by bolts, the guiding bracket 401 cooperates with the guide boss provided on the processing table 101, and the driving screw 402 is adapted to the threaded hole on the top convex plate of the guiding bracket 401, and the driving screw 402 is driven by the driving motor 403. In this way, the user can drive the guiding bracket 401 through the driving motor 403 in cooperation with the driving screw 402 according to actual conditions, so as to drive the splicing guide rail 104, and then complete the splicing of the entire curved track by corresponding driving of the splicing guide rails 104 on both sides. In actual operation, the corresponding groove pipe fittings need to be placed on the support seat 102 in advance, and then the splicing of the splicing guide rails 104 on both sides is realized by splicing the splicing guide rails 104 on both sides to realize the coordination between the overall track and the inside of the groove pipe fitting, thereby realizing subsequent corresponding operations.

[0054] Preferably, the operating assembly provided by the present invention further includes a clamping bracket 801 , a clamping cylinder 802 , a clamping plate 803 and a tightening member, and the tightening member includes a backing plate 901 , a double-headed screw 902 and a locking motor 903 .

[0055] Furthermore, the clamping bracket 801 is slidably installed on the processing table 101; the output end of the clamping cylinder 802 is connected to the clamping bracket 801, and the clamping cylinder 802 is fixedly installed on the processing table 101; the clamping plate 803 is fixedly installed on each of the clamping brackets 801; the tightening member is connected to the clamping bracket 801, and is used to limit the corresponding two sides of the clamped groove pipe.

[0056] Furthermore, two support plates 901 are slidably installed on each of the clamping brackets 801; the double-headed screw rod 902 is rotatably installed on the clamping bracket 801, and the two sides of the double-headed screw rod 902 are respectively threadedly connected to the two support plates 901; the output shaft of the locking motor 903 is connected to the double-headed screw rod 902, and the locking motor 903 is fixedly installed on one side of the clamping bracket 801.

[0057] When the present embodiment is in use, the processing table 101 is provided with a connecting frame for installing the clamping bracket 801, and the clamping bracket 801 is driven by the clamping cylinder 802. There are two groups of the clamping bracket 801 and the clamping cylinder 802. The two groups of the clamping bracket 801 and the clamping cylinder 802 respectively clamp and limit the two ends of the bent workpiece. Two supporting plates 901 are slidably installed on each of the clamping brackets 801. The two supporting plates 901 are driven by the double-headed screw rod 902 provided on the corresponding clamping bracket 801. The double-headed screw rod 902 is driven by the locking motor 903. The threads on both sides of the double-headed screw rod 902 rotate in opposite directions. When the locking motor 90 When the double-headed screw 902 is driven to rotate, the two supporting plates 901 provided on the corresponding clamping bracket 801 will move closer to or expand each other, so as to facilitate the position limiting cooperation of the left and right sides of the pipe fitting. In this way, the upper and lower sides of the pipe fitting can be clamped by the clamping plate 803, and the left and right sides of the pipe fitting can be limited and clamped by the supporting plates 901 provided on the clamping bracket 801 in cooperation with the corresponding driving structure, so that the interior of the corresponding grooved pipe fitting can cooperate with the spliced ​​splicing guide rail 104. When the grooved pipe fitting is clamped and limited, it can also be ensured that the complete track formed by the splicing of the two splicing guide rails 104 can be located on the central axis of the groove hole of the grooved pipe fitting, thereby making the subsequent plastic spraying more stable.

[0058] See also Figure 13 A method for spraying plastic coating on the inner wall of a grooved pipe fitting is provided, using the spraying device for coating the inner wall of a grooved pipe fitting, comprising the following steps:

[0059] S1: Place the workpiece to be sprayed on the inner wall on the support base 102, and then adjust the support height of the support base 102 by the support cylinder 103;

[0060] S2: After the workpiece is placed, the two splicing guide rails 104 can be spliced ​​together by connecting components to form a complete curved track;

[0061] S3: The collar frame 105 provided on the spliced ​​guide rail 104 slides on the complete track formed by the two spliced ​​guide rails 104 through a traveling component;

[0062] S4: Under the guidance of the collar frame 105, the nozzle 107 can cooperate with the spraying component and the rotating sleeve 106 to spray the inner wall of the groove pipe with plastic.

[0063] The above disclosure is merely one or more preferred embodiments of the present application and is not intended to limit the scope of the present application. A person skilled in the art will understand that all or part of the processes of the above embodiments and equivalent changes made in accordance with the claims of the present application are still within the scope of the present application.

Claims

1. A spraying device for coating the inner wall of a grooved pipe, comprising a processing table, a support seat and a support cylinder, wherein the support seat is slidably mounted on the processing table, the output end of the support cylinder is connected to the support seat, and the support cylinder is fixedly mounted on the processing table, characterized in that: Also included are operating components; The operating assembly includes a splicing guide rail, a collar frame, a rotating sleeve, a nozzle, a spraying component, a traveling component and a connecting component; There are two splicing guide rails in total, and the two splicing guide rails are connected to the processing table through two corresponding groups of connecting components. The ring frame is sleeved on the splicing guide rails, and the rotating sleeve is rotatably installed on the ring frame. The nozzle is connected to the rotating sleeve through the spraying component, and the spraying component is connected to the rotating sleeve for spraying the plastic coating raw material from the nozzle. The traveling component is connected to the ring frame for driving the ring frame to move on the splicing guide rails, and the connecting component is connected to the processing table for driving the corresponding splicing guide rails to move and adjust; The spraying component includes a material storage box, a connecting conduit, an extrusion frame, an internal gear rotation mechanism, a driving component and an adjusting component, wherein the material storage box is fixedly mounted on one side of the rotating sleeve; one side of the connecting conduit is connected to the nozzle, and the other side of the connecting conduit is connected to the material storage box; the extrusion frame is connected to the material storage box; the internal gear rotation mechanism is connected to the collar frame for driving the rotating sleeve; the driving component is connected to the extrusion frame for driving the extrusion frame to move in the material storage box; the adjusting component is connected to the nozzle for adjusting the spraying distance of the nozzle; The driving component includes an internal gear rack, a driving gear and a driving motor. The internal gear rack is fixedly connected to the extrusion rack and is rotatably mounted on the rotating sleeve; the driving gear is engaged with the internal gear rack and is rotatably mounted on the rotating sleeve; the output shaft of the driving motor is connected to the driving gear, and the driving motor is fixedly mounted on the rotating sleeve.

2. The spraying equipment for coating the inner wall of a grooved pipe according to claim 1, characterized in that: The traveling component includes a clamping wheel, a guide wheel, a guide gear table, a belt gear and a gear driving component. Two groups of the clamping wheels are rotatably mounted on the upper and lower sides of the inner ring of the ring frame; two groups of the guide wheels are rotatably mounted on the left and right sides of the inner ring of the ring frame; multiple guide gear tables are fixedly mounted on the splicing guide rail; the belt gear is rotatably mounted on the side of the ring frame close to the splicing guide rail; the gear driving component is connected to the belt gear for driving the belt gear.

3. The spraying equipment for coating the inner wall of a grooved pipe according to claim 1, characterized in that: The connecting component includes a guide bracket, a driving screw and a driving motor. The guide bracket is connected to the splicing guide rail and is slidably installed on the processing table; the driving screw is threadedly connected to the guide bracket and is rotatably installed on the processing table; the output shaft of the driving motor is connected to the driving screw, and the driving motor is fixedly installed on the processing table.

4. The spraying equipment for coating the inner wall of a grooved pipe according to claim 1, characterized in that: The adjustment component includes a guide bracket, an adjustment bracket, an adjustment screw and an adjustment motor. The guide bracket is fixedly mounted on the rotating sleeve; the adjustment bracket is slidably mounted on the guide bracket; the adjustment screw is threadedly connected to the adjustment bracket and is rotatably mounted on the guide bracket; the output shaft of the adjustment screw is connected to the adjustment screw, and the adjustment motor is fixedly mounted on the guide bracket.

5. The spraying equipment for coating the inner wall of a grooved pipe according to claim 2, characterized in that: The gear driving component includes a set gear, an intermediate gear, a driving gear and a rotating motor. The set gear is fixedly sleeved on one side of the belt gear; the intermediate gear is engaged with the set gear and is rotatably installed in the ring frame; the driving gear is engaged with the intermediate gear and is rotatably installed on one side of the ring frame; the output shaft of the rotating motor is connected to the driving gear, and the rotating motor is fixedly installed on one side of the ring frame.

6. The spraying equipment for coating the inner wall of a grooved pipe according to claim 1, characterized in that: The operating assembly also includes a clamping bracket, a clamping cylinder, a clamping plate and a tightening member. The clamping bracket is slidably mounted on the processing table; the output end of the clamping cylinder is connected to the clamping bracket, and the clamping cylinder is fixedly mounted on the processing table; the clamping plate is fixedly mounted on each of the clamping brackets; the tightening member is connected to the clamping bracket and is used to limit the corresponding two sides of the clamped groove pipe.

7. The spraying equipment for coating the inner wall of a grooved pipe according to claim 6, characterized in that: The tightening member includes a support plate, a double-ended screw and a locking motor, and two support plates are slidably installed on each clamping bracket; the double-ended screw is rotatably installed on the clamping bracket, and the two sides of the double-ended screw are respectively threadedly connected to the two support plates; the output shaft of the locking motor is connected to the double-ended screw, and the locking motor is fixedly installed on one side of the clamping bracket.

8. A method for spraying plastic coating on the inner wall of a grooved pipe, using the spraying device for coating plastic coating on the inner wall of a grooved pipe according to claim 1, characterized in that: The following steps are included: Place the workpiece to be sprayed on the inner wall on the support seat, and then adjust the support height of the support seat by the support cylinder; After the workpiece is placed, the two splicing guide rails can be spliced ​​together through the connecting components to form a complete track with an arc; The collar frame arranged on the spliced ​​guide rail slides on the complete track composed of the two spliced ​​guide rails through the traveling component; Under the guidance of the collar frame, the spray head can cooperate with the spraying component and the rotating sleeve to spray the plastic on the inner wall of the groove pipe.

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