Coating structure and digital printing circular tube machine

Abstract

The invention discloses a coating structure and a digital printing circular tube machine. The coating structure comprises a base, a supporting rod arranged on the base and a coating mechanism installed on the supporting rod. The coating mechanism comprises a first supporting piece installed on the supporting rod and a second supporting piece installed on the first supporting piece, a transmission shaft is arranged on the first supporting piece, a driving device is arranged on one side of the transmission shaft, and a transmission gear is installed on the other side of the transmission shaft; the transmission gear drives a first coating roller, a second coating roller and a third coating roller which are arranged on a second supporting piece to move; a first moving part, a second moving part and a third moving part are respectively arranged on the base, the first moving part drives the coating mechanism to move up and down, the second moving part drives the coating mechanism to move back and forth, and the third moving part drives the coating mechanism to move left and right. According to the invention, only one driving device is arranged to control the plurality of rollers on the coating mechanism, so that the production cost is reduced, and the base is adjustable, so that the position of the coating mechanism is convenient to adjust.

Description

Technical Field

[0001] This invention belongs to the technical field of inkjet printing equipment, specifically relating to a coating structure and a digital printing tube machine. Background Technology

[0002] In existing printing equipment, the coating mechanism is equipped with multiple rollers for printing. However, multiple rollers require multiple separate motors for control, which makes the control circuit of the coating mechanism complex, reduces space utilization, and increases the cost of production. Furthermore, when the position of the existing coating mechanism deviates from the actual working environment, it is necessary to manually move the coating mechanism to a suitable position, which is time-consuming and labor-intensive. Summary of the Invention

[0003] The purpose of this invention is to provide a coating structure to at least solve one of the above-mentioned technical problems. This application reduces the production cost by setting only one drive device to control multiple rollers on the coating mechanism. In addition, the adjustable base of this application facilitates the adjustment of the coating mechanism without the need for manual handling to adjust the position of the coating mechanism.

[0004] To achieve the above-mentioned objectives, the technical solution adopted by the present invention is as follows: A coating structure includes: a base, a support rod disposed on the base, and a coating mechanism mounted on the support rod; The coating mechanism includes: a first support member mounted on the support rod and a second support member mounted on the first support member. A transmission shaft is provided on the first support member. A driving device is provided on one side of the transmission shaft, and a transmission gear is installed on the other side of the transmission shaft. The transmission gear drives the first coating roller, the second coating roller and the third coating roller mounted on the second support member to move. The base is provided with a first moving part, a second moving part and a third moving part. The first moving part drives the coating mechanism to move up and down, the second moving part drives the coating mechanism to move back and forth, and the third moving part drives the coating mechanism to move left and right.

[0005] Preferably, one end of the first coating roller, the second coating roller, and the third coating roller are all mounted on the second support member, and the other end of the first coating roller, the second coating roller, and the third coating roller are respectively provided with a first gear, a second gear, and a third gear. The transmission gear cooperates with the first gear for transmission, and the second gear and the third gear cooperate with the first gear for transmission, and the transmission directions of the second gear and the third gear are the same.

[0006] Preferably, the driving device includes: a motor fixed on the first support member and a belt drive structure cooperating with the motor, one pulley of the belt drive structure being connected to the motor, and the other pulley of the belt drive structure being disposed on one side of the drive shaft.

[0007] Preferably, the first support member is provided with a first stop member along the direction close to the second coating roller, and the second support member is provided with a second stop member along the direction close to the third coating roller.

[0008] Preferably, a second movable member and a third movable member are sequentially arranged on the outer side of the base along the circumferential direction; a first base layer, a second base layer and a fixed layer are sequentially arranged on the upper side of the base from top to bottom, the first support member is arranged on the first base layer, the second movable member is arranged between the first base layer and the second base layer, and the third movable member is arranged between the second base layer and the fixed layer.

[0009] Preferably, the first base layer is provided with a slot, one end of the first movable member abuts against the bottom of the first support member, the other end of the first movable member passes through the slot and abuts against the second base layer, and the first support member is provided with a drive member for controlling the first movable member.

[0010] Preferably, the first base layer is provided with a first through groove along the direction close to the second moving member, and the fixing layer is provided with a second through groove along the direction close to the third moving member, wherein the first through groove and the second through groove are offset, the upper side of the second base layer is provided with a first protrusion that cooperates with the first through groove, and the lower side of the second base layer is provided with a second protrusion that cooperates with the second through groove.

[0011] Preferably, the second moving member and the third moving member are respectively provided with a first fixing member and a second fixing member, each of the first fixing member and the second fixing member having a handwheel at one end, and a first lead screw and a second lead screw respectively installed at the other end of the first fixing member and the second fixing member, and the first lead screw and the second lead screw are connected to the handwheel.

[0012] Preferably, the first fixing member is fixed on the second base layer, and the first lead screw is disposed on the first base layer; the second fixing member is fixed on the fixing layer, and the second lead screw is disposed on the second base layer.

[0013] Preferably, the second support member is provided with a protective shell along the direction close to the first gear.

[0014] Another object of the present invention is to provide a digital printing tube machine, including the coating structure as described above.

[0015] The present invention has the following beneficial effects: 1. The coating structure disclosed in this invention simplifies the control circuit of the coating mechanism and increases the utilization rate of the coating mechanism by setting only one driving device to drive the first coating roller, the second coating roller and the third coating roller on the coating mechanism.

[0016] 2. When the actual working position of the device deviates from the required working position, the first, second and third moving parts on the base can be rotated to adjust the position on the coating mechanism, eliminating the need to manually move the entire device and significantly reducing labor and time costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 for Figure 1 Enlarged view of the dashed line area; Figure 3 This is a front view of the present invention; Figure 4 This is the left view of the present invention; Figure 5 This is a top view of the present invention; Figure 6 for Figure 5 Sectional view along line AA; Figure 7 This is a schematic diagram of the structure of the present invention with a protective shell.

[0018] Figure Labels 1. Base; 2. Support rod; 3. Coating mechanism; 11. First moving part; 12. Second moving part; 13. Third moving part; 14. First base layer; 15. Second base layer; 16. Fixing layer; 17. Handwheel; 18. Protective shell; 31. First support member; 32. Second support member; 33. Drive shaft; 34. Drive device; 35. Transmission gear; 36. First coating roller; 37. Second coating roller; 38. Third coating roller; 111. Fixing part; 112. Rod part; 113. First protrusion; 114. Receptacle Cavity; 115, Reinforcing member; 116, Bearing; 117, Rotating wheel; 121, First fixing member; 122, First lead screw; 131, Second fixing member; 132, Second lead screw; 141, Groove; 142, First through groove; 150, Through hole; 151, First protrusion; 152, Second protrusion; 161, Second through groove; 311, First stop; 312, Driving member; 321, Second stop; 341, Motor; 342, Belt drive structure; 361, First gear; 362, Second gear; 363, Third gear. Detailed Implementation

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0020] The technical solution of the present invention will be described in detail below with specific embodiments.

[0021] refer to Figures 1-7 As shown, a coating structure of the present invention includes a base 1, a support rod 2 disposed on the base 1, and a coating mechanism 3 mounted on the support rod 2; The coating mechanism 3 includes: a first support member 31 mounted on the support rod 2 and a second support member 32 mounted on the first support member 31. A transmission shaft 33 is provided on the first support member 31. A driving device 34 is provided on one side of the transmission shaft 33, and a transmission gear 35 is mounted on the other side of the transmission shaft 33. The transmission gear 35 drives the first coating roller 36, the second coating roller 37 and the third coating roller 38 mounted on the second support member 32 to move. Specifically, in this application, four support rods 2 are arranged on the base 1 along the circumferential direction, and the first support member 31 is symmetrically installed on the support rods 2. This application realizes that the movement of the first coating roller 36, the second coating roller 37 and the third coating roller 38 is driven by only one drive device 34. The process is that the drive device 34 drives the transmission shaft 33 to drive the first coating roller 36, the second coating roller 37 and the third coating roller 38 to rotate in sequence, thereby solving the problem that multiple rollers require multiple separate motors to control in the prior art, effectively increasing the space utilization rate in the coating mechanism 3 and reducing the cost required for production.

[0022] The base 1 is provided with a first moving part 11, a second moving part 12 and a third moving part 13 respectively. The first moving part 11 drives the coating mechanism 3 to move up and down, the second moving part 12 drives the coating mechanism 3 to move back and forth, and the third moving part 13 drives the coating mechanism 3 to move left and right.

[0023] Specifically, a first moving part 11, a second moving part 12, and a third moving part 13 are respectively provided on the top, rear, and left sides of the base 1. Due to the special nature of the working environment, such as the presence of protruding corners that affect the placement of the coating mechanism 3, or the vibration generated by the long-term operation of the coating mechanism 3 causing it to deviate from its actual working position, this application achieves fine-tuning of the coating mechanism 3 through the first moving part 11, the second moving part 12, and the third moving part 13 without moving the entire coating structure. This solves the problem in the prior art that when the position of the existing coating mechanism deviates from the actual working environment, it is necessary to manually move the coating mechanism to a suitable position, effectively reducing the waste of time and labor costs.

[0024] In this embodiment, as Figure 2 As shown, one end of the first coating roller 36, the second coating roller 37, and the third coating roller 38 are all mounted on the second support member 32. The other ends of the first coating roller 36, the second coating roller 37, and the third coating roller 38 are respectively provided with a first gear 361, a second gear 362, and a third gear 363. The transmission gear 35 cooperates with the first gear 361 for transmission. The second gear 362 and the third gear 363 both cooperate with the first gear 361 for transmission, and the transmission directions of the second gear 362 and the third gear 363 are the same.

[0025] Specifically, the first coating roller 36 is an anilox roller; the second coating roller 37 is a printing roller; and the third coating roller 38 is a doctor roller used to control the amount of ink on the anilox roller. The coating mechanism 3 of this application is driven by gear transmission, that is, the drive device 34 drives the transmission shaft 33 to rotate, thereby driving the transmission gear 35 to rotate. The transmission gear 35 drives the first gear 361 to rotate, thereby driving the first coating roller 36 to rotate. The first gear 361 simultaneously drives the second gear 362 and the third gear 363 to rotate, thereby driving the second coating roller 37 and the third coating roller 38 to rotate. The gear transmission method can maintain a precise instantaneous transmission ratio, ensuring that the first coating roller 36, the second coating roller 37 and the third coating roller 38 rotate synchronously.

[0026] In this embodiment, as Figure 2 As shown, the drive device 34 includes: a motor 341 fixed on the first support member 31 and a belt drive structure 342 cooperating with the motor 341. One pulley of the belt drive structure 342 is connected to the motor 341, and the other pulley of the belt drive structure 342 is disposed on one side of the drive shaft 33.

[0027] Specifically, a transmission gear 35 is provided on one side of the transmission shaft 33, and a pulley in a belt drive structure 342 is provided on the other side of the transmission shaft 33. The other pulley of the belt drive structure 342 is mounted on the drive shaft of the motor 341. That is, the motor 341 drives one pulley to rotate, which in turn drives the other pulley to rotate via a belt / or chain, and then drives the transmission shaft 33 to rotate. In this application, the transmission method on one side of the transmission shaft 33 is gear transmission, and the transmission method on the other side of the transmission shaft 33 is belt transmission. Belt transmission has the advantage of overload protection, which makes up for the disadvantage of gear transmission that is difficult to stop due to overload, thereby protecting various parts on the coating mechanism 3.

[0028] In one possible embodiment, one side of the drive shaft 33 is driven by gear transmission as described above, while the other side of the drive shaft 33 is directly connected to the motor 341, that is, the motor 341 directly drives the drive shaft 33 to rotate. A worm gear transmission mechanism is provided at the connection between the motor 341 and the drive shaft 33. That is, when the motor 341 is controlled to rotate forward, the motor 341 provides a power source to the drive shaft 33, thereby driving the drive shaft 33 to rotate. When the motor 341 is controlled to rotate in reverse, the motor 341 provides a resistance source to the drive shaft 33, thereby stopping the drive shaft 33 from rotating.

[0029] In this embodiment, as Figure 7 As shown, a first stop 311 is provided on the first support member 31 along the direction close to the second coating roller 37, and a second stop 321 is provided on the second support member 32 along the direction close to the third coating roller 38.

[0030] Specifically, since ink is corrosive, the first baffle 311 and the second baffle 321 are used to prevent ink from splashing during the operation of the first coating roller 36, the second coating roller 37, and the third coating roller 38. The first baffle 311 is located below the second coating roller 37 and extends outward from the first support member 31 in a direction away from the second coating roller 37. That is, since there is a large height difference between the second coating roller 37 and the first baffle 311, ink will splash when it drips. Therefore, by increasing the area of ​​the first baffle 311, ink dripping onto the base 1 is prevented, thereby protecting the integrity of the device. The second baffle 321 is located below the first coating roller 36 and the third coating roller 38 and accommodates the first coating roller 36 and the third coating roller 38. That is, when the first coating roller 36 and the third coating roller 38 are working, excess ink drips into the second baffle 321.

[0031] In this embodiment, as Figures 3-4As shown, a second movable member 12 and a third movable member 13 are sequentially arranged on the outer side of the base 1 along the circumferential direction; a first base layer 14, a second base layer 15 and a fixed layer 16 are sequentially arranged on the upper side of the base 1 from top to bottom; a first support member 31 is arranged on the first base layer 14; the second movable member 12 is arranged between the first base layer 14 and the second base layer 15; and the third movable member 13 is arranged between the second base layer 14 and the fixed layer 16.

[0032] In this embodiment, as Figure 6 As shown, the first base layer 14 is provided with a slot 141, one end of the first moving member 11 abuts against the bottom of the first support member 31, the other end of the first moving member 11 passes through the slot 141 and abuts against the second base layer 15, and the first support member 31 is provided with a drive member 312 for controlling the first moving member 11.

[0033] Specifically, the driving component 312 of this application is a cylinder, and the first moving component 11 consists of two parts: a fixed part 111 and a rod part 112. The second base layer 15 has a through hole 150, and a first protrusion 113 at one end of the fixed part 111 passes through a slot 141 and is fixed within the through hole 150. The fixed part 111 has a receiving cavity 114, and the cavity wall of the receiving cavity 114 is threaded. A reinforcing member 115 is provided below the first baffle 311 to strengthen the fixation of the first baffle 311. A bearing 116 is installed inside the reinforcing member 115. One end of the rod 112 is smooth and is connected to the bearing 116. The other end of the rod 112 is threaded and is connected to the threaded wall of the receiving cavity 114. A rotating wheel 117 is installed at the smooth part of the rod 112. The operator controls the rod 112 to rise or fall by rotating the rotating wheel 117, which in turn moves the coating mechanism 3 to rise or fall. The driving member 312 provides a power source to the first moving member 11, so that the operator saves effort when controlling the coating mechanism 3 to rise or fall.

[0034] In this embodiment, as Figures 3-4 As shown, the first base layer 14 is provided with a first through groove 142 along the direction close to the second moving member 12, and the fixed layer 16 is provided with a second through groove 161 along the direction close to the third moving member 13. The first through groove 142 and the second through groove 161 are offset. The upper side of the second base layer 15 is provided with a first protrusion 151 that cooperates with the first through groove 142, and the lower side of the second base layer 15 is provided with a second protrusion that cooperates with the second through groove 161.

[0035] Specifically, both the first through groove 142 and the second through groove 161 are dovetail grooves. The first protrusion 151 cooperates with the first through groove 142 to restrict the movement of the first base layer 14, that is, the first base layer 14 can only move forward or backward on the second base layer 15; similarly, the second base layer 15 can only move left or right on the fixed layer 16.

[0036] In this embodiment, the second moving member 12 and the third moving member 13 are respectively provided with a first fixing member 121 and a second fixing member 131. A handwheel 17 is provided at one end of the first fixing member 121 and the second fixing member 131, and a first lead screw 122 and a second lead screw 132 are respectively installed at the other end of the first fixing member 121 and the second fixing member 131. The first lead screw 122 and the second lead screw 132 are connected to the handwheel 17.

[0037] In this embodiment, the first fixing member 121 is fixed on the second base layer 15, and the first lead screw 122 is disposed on the first base layer 14; the second fixing member 131 is fixed on the fixing layer 16, and the second lead screw 132 is disposed on the second base layer 15.

[0038] Specifically, in this application, the structures of the second moving part 12 and the third moving part 13 are identical, and the handwheels 17 of both the second moving part 12 and the third moving part 13 are equipped with locking mechanisms (not shown in the figure). That is, after the handwheel 17 is rotated a certain number of times, it is locked and cannot be rotated further. This technology is prior art and will not be described in detail here. First, the fixed layer 17 is fixed on the base 1. When the operator rotates the handwheel 17 on the third moving part 13, it forces the second base layer 15 to drive the coating mechanism 3 to move to the left or right. During this process, the first protrusion 151 on the second base layer 15 always abuts against the groove wall of the first through groove 142 so that the first base layer 14 moves synchronously with the second base layer 15. When the operator rotates the second moving part 14, the second base layer 15 and the fixed layer 16 are both in a fixed and stationary state. Only the first base layer 14 moves, thereby driving the coating mechanism 3 to move forward or backward.

[0039] In this embodiment, as Figure 7 As shown, the second support member 32 is provided with a protective shell 18 along the direction close to the first gear 361.

[0040] Specifically, the protective shell 18 is used to protect the working environment of the transmission gear 35, the first gear 361, the second gear 362 and the third gear 363, and reduce the influence of external media, such as dust or water vapor, which can cause the gear parts to rust.

[0041] This application also discloses a digital printing tube machine, which includes the coating structure disclosed in the above embodiments. Therefore, the digital printing tube machine with this coating structure also has all the above-mentioned technical effects, which will not be described in detail here.

[0042] The embodiments of the present invention have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present invention, and the descriptions of the embodiments above are only for the purpose of helping to understand the core ideas of the present invention. It should be noted that those skilled in the art can make several improvements and modifications to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A coating structure, characterized in that, It includes a base (1), a support rod (2) disposed on the base (1), and a coating mechanism (3) mounted on the support rod (2); The coating mechanism (3) includes: a first support member (31) mounted on the support rod (2) and a second support member (32) mounted on the first support member (31). A transmission shaft (33) is provided on the first support member (31). A drive device (34) is provided on one side of the transmission shaft (33), and a transmission gear (35) is installed on the other side of the transmission shaft (33). The transmission gear (35) drives the first coating roller (36), the second coating roller (37) and the third coating roller (38) mounted on the second support member (32) to move. The base (1) is provided with a first moving part (11), a second moving part (12) and a third moving part (13). The first moving part (11) drives the coating mechanism (3) to move up and down, the second moving part (12) drives the coating mechanism (3) to move back and forth, and the third moving part (13) drives the coating mechanism (3) to move left and right.

2. The coating structure according to claim 1, characterized in that, One end of the first coating roller (36), the second coating roller (37), and the third coating roller (38) is mounted on the second support member (32). The other end of the first coating roller (36), the second coating roller (37), and the third coating roller (38) is respectively provided with a first gear (361), a second gear (362), and a third gear (363). The transmission gear (35) cooperates with the first gear (361) for transmission. The second gear (362) and the third gear (363) cooperate with the first gear (361) for transmission, and the transmission directions of the second gear (362) and the third gear (363) are the same.

3. The coating structure according to claim 1, characterized in that, The drive device (34) includes: a motor (341) fixed on the first support (31) and a belt drive structure (342) cooperating with the motor (341). One pulley of the belt drive structure (342) is connected to the motor (341), and the other pulley of the belt drive structure (342) is disposed on one side of the drive shaft (33).

4. The coating structure according to claim 2, characterized in that, The first support member (31) is provided with a first stop (311) along the direction close to the second coating roller (37), and the second support member (32) is provided with a second stop (321) along the direction close to the third coating roller (38).

5. A coating structure according to claim 1, characterized in that, The outer side of the base (1) is provided with a second moving member (12) and a third moving member (13) in sequence along the circumferential direction; the base (1) is provided with a first base layer (14), a second base layer (15) and a fixed layer (16) in sequence along the top to bottom direction; the first support member (31) is provided on the first base layer (14); the second moving member (12) is provided between the first base layer (14) and the second base layer (15); and the third moving member (13) is provided between the second base layer (14) and the fixed layer (16).

6. The coating structure according to claim 5, characterized in that, The first base layer (14) is provided with a slot (141), one end of the first moving member (11) abuts against the bottom of the first support member (31), the other end of the first moving member (11) passes through the slot (141) and abuts against the second base layer (15), and the first support member (31) is provided with a drive member (312) for controlling the first moving member (11).

7. A coating structure according to claim 5, characterized in that, The first base layer (14) is provided with a first through groove (142) in the direction close to the second moving member (12), and the fixed layer (16) is provided with a second through groove (161) in the direction close to the third moving member (13). The first through groove (142) and the second through groove (161) are offset. The upper side of the second base layer (15) is provided with a first protrusion (151) that cooperates with the first through groove (142), and the lower side of the second base layer (15) is provided with a second protrusion that cooperates with the second through groove (161).

8. A coating structure according to claim 6, characterized in that, The second moving part (12) and the third moving part (13) are respectively provided with a first fixing part (121) and a second fixing part (131). A handwheel (17) is provided at one end of the first fixing part (121) and the second fixing part (131). A first lead screw (122) and a second lead screw (132) are respectively installed at the other end of the first fixing part (121) and the second fixing part (131), and the first lead screw (122) and the second lead screw (132) are connected to the handwheel (17).

9. A coating structure according to claim 8, characterized in that, The first fixing member (121) is fixed on the second base layer (15), and the first lead screw (122) is disposed on the first base layer (14); the second fixing member (131) is fixed on the fixing layer (16), and the second lead screw (132) is disposed on the second base layer (15).

10. A digital printing round tube machine, characterized in that, Includes the coating structure as described in any one of claims 1-9.

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