Coating machine spray gun frame adjustment device

Abstract

The invention discloses a coating machine spray gun frame adjustment device, including a transmission mechanism, the front end of the transmission mechanism includes a first outer cylinder and a first output shaft that are coaxially rotatably connected, and the front end of the transmission mechanism is linked to be provided with a crank arm, a crank arm connecting rod, a guide connecting rod, and an adjustment seat, wherein the rear end of the crank arm is fixed to the first output shaft, the front end of the crank arm is pivotally connected to one end of the crank arm connecting rod, the other end of the crank arm connecting rod is pivotally connected to the adjustment seat, one end of the guide connecting rod is fixed to the first outer cylinder, the other end of the guide connecting rod is fixed to the adjustment seat, and the other end of the transmission mechanism is coaxially provided with a first operating knob and a second operating knob, and the relative rotation and the same-direction rotation of the first operating knob and the second operating knob can respectively drive the relative rotation or the same-direction rotation between the first outer cylinder and the first output shaft. The invention can adjust the spray angle and spray distance of the spray gun when the equipment is running, and has a compact structure, light weight, and wide applicability.

Description

Technical Field

[0001] The invention relates to a coating machine spray gun frame adjusting device. Background Art

[0002] A fully automatic environmentally friendly and efficient coating machine (CN217726141U) disclosed in a Chinese utility model includes a mounting box, a heating box and an outer pot body, a servo motor is installed in the mounting box through a mounting seat, an outer pot body is installed at one end of the mounting box through bolts, an inner pot body is sleeved in the outer pot body, and a horizontal air inlet pipe is arranged in the inner pot body, and an atomizing nozzle is installed at the bottom of one end of the horizontal air inlet pipe through screws. When working, the medicine to be coated is placed in the inner pot body, the servo motor power is turned on to drive the inner pot body in the outer pot body to rotate stably, the medicine is turned over, and the coating liquid is sucked into the atomizing nozzle by a peristaltic pump to be sprayed out by atomization, so as to be evenly dispersed on the surface of the medicine, and realize automatic and uniform coating.

[0003] At present, the prior art represented by the above patent has the following defects: when the material rolls and turns in the inner pot body, it is not located directly below the atomizing nozzle, but is in a relatively deviated position, and an inclined surface is formed. The inclination angle of the surface and the position of the material are related to various factors such as the rotation speed of the inner pot body and the shape of the material. Therefore, in actual application, in order to make the coating liquid and other auxiliary materials more evenly sprayed on the surface of the tablet bed, it is usually necessary to adjust the position and spray angle of the atomizing nozzle, resulting in that the most ideal spraying position cannot be achieved every time in the production of different batches. The existing adjustment method for the atomizing nozzle can only be performed when the equipment is shut down. After changing materials of different shapes and adjusting the inner pot body, it is usually necessary to debug repeatedly, which is very cumbersome. This problem is particularly prominent in the application of large-diameter coating pans of 350 and above. On the one hand, the spray gun frame of large models is heavy, and manual adjustment is time-consuming and labor-intensive; second, when the large-diameter coating pan is used for small-batch coating, the distance between the spray gun and the tablet bed will exceed the optimal spraying distance, and due to the size limitation of the coating pan tray, the gun frame cannot be moved into the pot after being adjusted outside the pot. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a coating machine spray gun frame adjustment device, which can adjust the spray angle and spray distance of the spray gun when the equipment is running, and has a compact and lightweight structure and wide applicability.

[0005] To achieve the above object, the present invention provides a coating machine spray gun frame adjustment device.

[0006] The transmission mechanism comprises a transmission mechanism, the front end of which comprises a first outer cylinder and a first output shaft which are coaxially rotatably connected, and the front end of the transmission mechanism is linked with a crank arm, a crank arm connecting rod, a guide connecting rod and an adjustment seat, wherein the rear end of the crank arm is fixed to the first output shaft, the front end of the crank arm is pivotally connected to one end of the crank arm connecting rod, the other end of the crank arm connecting rod is pivotally connected to the adjustment seat, one end of the guide connecting rod is fixed to the first outer cylinder, and the other end of the guide connecting rod is fixed to the adjustment seat, when the first outer cylinder and the first output shaft rotate relative to each other, the adjustment seat can be driven to move translationally toward or away from the axis direction, when the first outer cylinder and the first output shaft rotate in the same direction, the adjustment seat can be driven to rotate along the axis, the other end of the transmission mechanism is coaxially provided with a first operating knob and a second operating knob, based on the relative rotation of the first operating knob and the second operating knob and the same The axial direction of the pivot connection between the crank arm, the crank arm connecting rod and the adjustment seat is parallel to the axial direction of the rotation connection between the first outer cylinder and the first output shaft, and the guide connecting rod comprises at least two pivotally connected folding plates and two clamps respectively pivotally connected to the two folding plates, and the two clamps are respectively connected and fixed to the first outer cylinder and the adjustment seat, and the axial direction of the pivot connection between the folding plates and between the clamps and the folding plates is perpendicular to the axial direction of the rotation connection between the first outer cylinder and the first output shaft. Through the mutual restraint of the crank arm connecting rod and the guide connecting rod, the adjustment seat can be limited to only be able to move translationally close to or away from the axial direction.

[0007] Further, the transmission mechanism includes a second outer cylinder and a second output shaft. The second outer cylinder is coaxially arranged at the rear end of the first outer cylinder, and the first outer cylinder and the second outer cylinder constitute a rotational connection. The second output shaft is fixed to the rear end of the first outer cylinder and coaxially arranged on the inner side of the first outer cylinder. A transmission shaft and a transmission sleeve are coaxially arranged on the inner side of the second outer cylinder. The front end of the transmission shaft is passed through the inner side of the second output shaft and cooperates with the rear end of the first output shaft. The rear end of the transmission shaft is passed through the outer side of the second outer cylinder and is fixed to the first operating knob. The transmission shaft is passed through the inner side of the transmission sleeve. The front end of the transmission sleeve and the rear end of the second output shaft cooperate with each other. The rear end of the transmission sleeve is passed through the outer side of the second outer cylinder and is fixed to the second operating knob. When the second operating knob is rotated, the transmission sleeve can be driven to rotate.

[0008] Furthermore, the front end of the transmission shaft is connected to a first screw, the first screw is placed inside the first outer tube, a first sleeve is also provided inside the first outer tube, the rear end of the first sleeve is threadedly matched with the first screw, the first sleeve and the inner wall of the first outer tube form a sliding fit that can slide axially but is circumferentially limited, an oblique guide groove is provided on the side wall of the first sleeve, and a guide block that cooperates with the guide groove to guide the movement is provided at the rear end of the first output shaft. This structural design can make manual operation more labor-saving and can also prevent reverse transmission.

[0009] Furthermore, the front end of the transmission sleeve is connected to a second screw, the second screw is placed inside the second outer tube, a second sleeve is provided inside the second outer tube, the second sleeve and the inner wall of the second outer tube form a sliding fit that can slide axially but is circumferentially limited, an oblique guide groove is provided on the side wall of the second sleeve, and a guide block that cooperates with the guide groove to guide the movement is provided at the rear end of the second output shaft. Similarly, the use of this structural design can make manual operation more labor-saving, and can also prevent reverse transmission.

[0010] The beneficial effects of the present invention are as follows: the present invention can adjust the angle and position of the atomizing nozzle inside the pot body without stopping the coating machine equipment, which can improve the production efficiency of the product, and is particularly suitable for adjusting the atomizing nozzle in the application of a large-diameter coating pot. Relatively speaking, the operation is simpler and more convenient, and the adjustment efficiency is higher; it is also particularly suitable for the application of a large-diameter coating pot in small-batch coating, and can adjust the distance between the spray gun and the tablet bed to make the coating more uniform, thereby improving the production quality; in addition, the present invention also has the advantages of compact structure and small space occupancy, is not easily limited by the size of the coating pot tray, and can be easily moved into the pot. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A three-dimensional diagram of an embodiment of the present invention;

[0012] Figure 2 A side view of an embodiment of the present invention;

[0013] Figure 3 A partial cross-sectional view of the front portion of an embodiment of the present invention;

[0014] Figure 4 A partial cross-sectional view of the rear portion of an embodiment of the present invention;

[0015] Figure 5 It is a structural diagram of the internal structure of an embodiment of the present invention;

[0016] Figure 6 It is a schematic diagram of the connection between the transmission shaft, the first output shaft / transmission sleeve and the second output shaft according to an embodiment of the present invention. DETAILED DESCRIPTION

[0017] The embodiment of the coating machine spray gun frame adjustment device of the present invention is as follows Figure 1-6 As shown: it includes a transmission mechanism 1, the front end of the transmission mechanism 1 includes a first outer cylinder 11 and a first output shaft 12 which are coaxially connected, the front end of the transmission mechanism 1 is linked with a crank arm 21, a crank arm connecting rod 22, a guide connecting rod 23, and an adjustment seat 24, wherein the crank arm 21 includes a front section and a rear section, the front section of the crank arm 21 extends along the radial direction of the rotation axis of the first outer cylinder 11 and the first output shaft 12, the rear section is coaxially arranged with the rotation axis, the rear end of the crank arm 21 is fixed to the first output shaft 12, the front end of the crank arm 21 is pivotally connected to one end of the crank arm connecting rod 22, the other end of the crank arm connecting rod 22 is pivotally connected to the adjustment seat 24, the adjustment seat 24 is used to cooperate and fix with the spray gun frame, one end of the guide connecting rod 23 is fixed to the first outer cylinder 11, and the other end of the guide connecting rod 23 is fixed to the adjustment seat 24, when the first outer cylinder 11 and the first output shaft 12 rotate relative to each other, The crank arm link 22 and the guide link 23 are mutually pulled and restricted, and can drive the adjustment seat 24 to move closer to or away from the axis direction, so that the distance between the atomizing nozzle and the tablet bed can be adjusted. When the first outer cylinder 11 and the first output shaft 12 rotate in the same direction, the crank arm link 22 and the guide link 23 also rotate synchronously, so that the adjustment seat 24 can be driven to rotate along the axis to adjust the spray angle of the atomizing nozzle. The other end of the transmission mechanism 1 is coaxially provided with a first operating knob 31 and a second operating knob 32. Through the transmission action of the transmission mechanism 1, the first outer cylinder 11 and the first output shaft 12 can be driven to rotate relative to each other or in the same direction when the first operating knob 31 and the second operating knob 32 rotate relative to each other and in the same direction, respectively, thereby adjusting the distance between the atomizing nozzle and the tablet bed and the spray angle of the atomizing nozzle.

[0018] The transmission mechanism 1 includes a second outer cylinder 13 and a second output shaft 14. The second outer cylinder 13 is coaxially arranged at the rear end of the first outer cylinder 11, and the first outer cylinder 11 and the second outer cylinder 13 form a rotating sleeve fit. The second output shaft 14 is fixed to the rear end of the first outer cylinder 11 and coaxially arranged on the inner side of the first outer cylinder 11. A transmission shaft 15 and a transmission sleeve 16 are coaxially arranged on the inner side of the second outer cylinder 13. The front end of the transmission shaft 15 is arranged on the inner side of the second output shaft 14 and cooperates with the rear end of the first output shaft 12. The transmission shaft 15 can drive the first output shaft 12 when rotating. 2 is rotated, the rear end of the transmission shaft 15 is passed through the outside of the second outer cylinder 13 and is fixed to the first operating knob 31. When the first operating knob 31 is operated to rotate, the transmission shaft 15 can be driven to rotate. The transmission shaft 15 is passed through the inner side of the transmission sleeve 16. The front end of the transmission sleeve 16 and the rear end of the second output shaft 14 cooperate with each other. When the transmission sleeve 16 rotates, the second output shaft 14 can be driven to rotate. The rear end of the transmission sleeve 16 is passed through the outside of the second outer cylinder 13 and is fixed to the second operating knob 32. When the second operating knob 31 is operated to rotate, the transmission sleeve 16 can be driven to rotate.

[0019] The same linkage structure is adopted between the transmission shaft 15 and the first output shaft 12 and between the movable sleeve 16 and the second output shaft 14. The specific structure is as follows: Figure 6 shown.

[0020] like Figure 6 As shown, the front end of the transmission shaft 15 is connected with a first screw 17, and the first screw 17 is placed on the inner side of the first outer cylinder 11. The first screw 17 is hollow, which can reduce the weight of the first screw 17. A first sleeve 18 is also provided on the inner side of the first outer cylinder 11. The rear end of the first sleeve 18 is threadedly matched with the first screw 17. The first sleeve 18 and the inner wall of the first outer cylinder 11 form a sliding fit that can slide axially but is limited in the circumferential direction. Specifically, at least one slide groove is evenly distributed on the inner circumferential wall of the first outer cylinder 11, and the slide groove extends axially along the first outer cylinder 11. A convex rib 181 that slides with the slide groove is correspondingly provided on the outer side of the first sleeve 18. The sliding fit between the slide groove and the convex rib 181 limits the relative movement between the first sleeve 18 and the first outer cylinder 11 only in the axial direction. An oblique guide groove 182 is provided on the side wall of the first sleeve 18, and a guide block 121 that cooperates with the guide groove 182 for guiding the movement is provided at the rear end of the first output shaft 12. When the transmission shaft 15 rotates, it can drive the first screw 17 to rotate together. Since the rotation of the first sleeve 18 is limited by the first outer cylinder 11, it is driven by the first screw 17 to move axially. When the first sleeve 18 moves axially, it can drive the guide block 121 to move along the guide groove 182, thereby driving the first output shaft 12 to rotate. This structural design can make manual operation more labor-saving and can also provide an effect of preventing reverse transmission.

[0021] The front end of the transmission sleeve 16 is connected to a second screw 19, and the second screw 19 is placed on the inner side of the second outer cylinder. A second sleeve 20 is provided on the inner side of the second outer cylinder 13. The second sleeve 20 and the inner wall of the second outer cylinder 13 form a sliding fit that can slide axially but is limited circumferentially. Specifically, at least one slide groove is evenly distributed on the inner circumferential wall of the second outer cylinder 13, and the slide groove extends axially along the second outer cylinder 13. A convex rib 201 that slides with the slide groove is correspondingly provided on the outer side of the second sleeve 20. The sliding fit of the slide groove and the convex rib 201 limits the relative movement between the second sleeve 20 and the second outer cylinder 13 to only be in the axial direction. An oblique guide groove 202 is provided on the side wall of the second sleeve 20, and a guide block 141 that cooperates with the guide groove 202 to guide the movement is provided at the rear end of the second output shaft 14. When the transmission sleeve 16 rotates, it can drive the second screw 19 to rotate together. Since the rotation of the second sleeve 20 is restricted by the second outer cylinder 13, it is driven by the second screw 19 to move axially. When the second sleeve 20 moves axially, it can drive the guide block 141 to move along the guide groove 202, thereby driving the second output shaft 14 to rotate. This structural design can make manual operation more labor-saving and can also provide an effect of preventing reverse transmission.

[0022] In order to further reduce the overall weight, Figure 6 As shown, a plurality of hollow holes 1820 are also formed on the first sleeve 18 and the second sleeve 20 .

[0023] When the second outer cylinder 13 is installed with the coating machine body, it is fixed between the second outer cylinder 13 and the coating machine body. The rear end of the second outer cylinder 13 is provided with a support seat 131.

[0024] like Figure 1-2 As shown, the axis direction of the pivot connection between the crank arm 21, the crank arm connecting rod 22, and the adjustment seat 24 is parallel to the axial direction of the rotation connection between the first outer cylinder 11 and the first output shaft 12. The guide connecting rod 23 includes two pivotally connected folding plates 231 and two clamps 232 respectively pivotally connected to the two folding plates 231. The two clamps 232 are respectively connected and fixed to the first outer cylinder 11 and the adjustment seat 24. The axis direction of the pivot connection between the folding plates 231 and between the clamp 232 and the folding plates 231 is perpendicular to the axial direction of the rotation connection between the first outer cylinder 11 and the first output shaft 12. Through the mutual restriction of the crank arm connecting rod 22 and the guide connecting rod 23, the adjustment seat 24 can be limited to only move toward or away from the axis.

[0025] In addition to the above structure, bearings are provided between the above components having a rotational connection relationship, especially between the components located in the first outer cylinder 11 and the second outer cylinder 13, which can reduce friction and make the adjustment operation more labor-saving.

[0026] The above embodiment is only one of the preferred specific embodiments of the present invention. Common changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention are all included in the protection scope of the present invention.

Claims

1. A coating machine spray gun frame adjustment device, characterized in that: The invention comprises a transmission mechanism, wherein the front end of the transmission mechanism comprises a first outer cylinder and a first output shaft which are coaxially connected for rotation, and the front end of the transmission mechanism is linked with a crank arm, a crank arm connecting rod, a guide connecting rod and an adjustment seat, wherein the rear end of the crank arm is fixed to the first output shaft, the front end of the crank arm is pivotally connected to one end of the crank arm connecting rod, the other end of the crank arm connecting rod is pivotally connected to the adjustment seat, one end of the guide connecting rod is fixed to the first outer cylinder, and the other end of the guide connecting rod is fixed to the adjustment seat, when the first outer cylinder and the first output shaft rotate relative to each other, the adjustment seat can be driven to move translationally closer to or away from the axis direction, and when the first outer cylinder and the first output shaft rotate in the same direction, the adjustment seat can be driven to rotate along the axis, and the other end of the transmission mechanism is coaxially provided with a first operating knob and a second operating knob, and the relative rotation and the same direction rotation of the first operating knob and the second operating knob can respectively drive the first outer cylinder and the first output shaft to rotate relative to each other or rotate in the same direction; the axial direction of the pivotal connection between the crank arm, the crank arm connecting rod and the adjustment seat is the axial direction of the rotational connection between the first outer cylinder and the first output shaft. The guide connecting rod comprises at least two folding plates connected by a pivot axis, two clamps respectively connected by a pivot axis to the two folding plates, the two clamps are respectively connected and fixed to the first outer cylinder and the adjustment seat, and the axial direction of the pivot connection between the folding plates and between the clamp and the folding plates is perpendicular to the axial direction of the rotational connection between the first outer cylinder and the first output shaft; the transmission mechanism comprises a second outer cylinder and a second output shaft, the second outer cylinder is coaxially arranged at the rear end of the first outer cylinder, and the first outer cylinder and the second outer cylinder form a rotational connection, the second output shaft is fixed at the rear end of the first outer cylinder and coaxially arranged on the inner side of the first outer cylinder, a transmission shaft and a transmission sleeve are coaxially arranged on the inner side of the second outer cylinder, the front end of the transmission shaft is passed through the inner side of the second output shaft and cooperates with the rear end of the first output shaft, the rear end of the transmission shaft is passed through the outer side of the second outer cylinder and is fixed to the first operating knob, the transmission shaft is passed through the inner side of the transmission sleeve, the front end of the transmission sleeve and the rear end of the second output shaft cooperate and cooperate, the rear end of the transmission sleeve is passed through the outer side of the second outer cylinder and is fixed to the second operating knob.

2. The coating machine spray gun frame adjustment device according to claim 1, characterized in that: The front end of the transmission shaft is connected to a first screw, which is placed on the inner side of the first outer tube. A first sleeve is also provided on the inner side of the first outer tube. The rear end of the first sleeve is threadedly matched with the first screw, and the first sleeve and the inner wall of the first outer tube form a sliding fit that can slide axially but is limited circumferentially. An oblique guide groove is provided on the side wall of the first sleeve, and a guide block that cooperates with the guide groove to guide the movement is provided on the rear end of the first output shaft.

3. The coating machine spray gun frame adjustment device according to claim 1, characterized in that: The front end of the transmission sleeve is connected to a second screw rod, and the second screw rod is placed on the inner side of the second outer cylinder. A second sleeve is arranged on the inner side of the second outer cylinder. The second sleeve and the inner wall of the second outer cylinder form a sliding fit that can slide axially but is limited circumferentially. An oblique guide groove is arranged on the side wall of the second sleeve. A guide block that cooperates with the guide groove to guide the movement is arranged on the rear end of the second output shaft.

Images