More stable shutter control structure

Abstract

The utility model discloses a more stable shutter control structure, and aims to solve the problem of ultraviolet radiation hazard caused by manual operation of a shutter of a UV curing lamp box. The structure comprises a lamp box with an opening, a built-in UV curing lamp and arc-shaped shutters symmetrically arranged on the two sides of the lamp box. The shutter is connected with the lamp box through the installation shaft and the first swing arm, and power is transmitted through the transmission shaft. The core is that a motor is arranged and can simultaneously drive two transmission shafts to reversely rotate through a transmission mechanism consisting of a side plate fixed on a mounting plate, a driving plate, an eccentric shaft driven by the motor and a series of swing arms and bearings, so that the automatic closing and opening of the shutter are realized. And closed-loop control can be formed in cooperation with a microswitch and a controller, and it is ensured that the shutter is automatically stopped after being accurately in place. According to the utility model, the full-automatic operation of the shutter is realized, the risk that people are exposed to ultraviolet rays is avoided, and the shutter has the advantages of high safety, stable operation, high automation degree and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to printing equipment technical field especially, a shutter automatic control structure for UV curing lamp house. BACKGROUND

[0002] In the printing industry, printing materials are colored by printing machines, and then the ink curing is carried out by UV curing lamps. The ultraviolet radiation emitted by the UV curing lamp has potential hazards to the skin, eyes and respiratory system of the on-site workers. Therefore, the UV curing lamp must be shielded from light in time after use.

[0003] In the prior art, the door closing operation is usually performed by manual operation at the lamp house outlet to shield the ultraviolet rays. However, this method exposes the operator directly to the ultraviolet radiation, which has serious safety hazards. Therefore, there is an urgent need for a device that can automatically and stably control the opening and closing of the lamp house shutter to avoid direct contact with the ultraviolet rays. UTILITY MODEL CONTENT

[0004] The utility model aims at overcoming the shortcomings of the prior art and providing a more stable shutter control structure to realize the automatic opening and closing of the UV curing lamp house, avoid the ultraviolet ray damage caused by manual operation, and improve the safety and convenience of operation.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a more stable shutter control structure, comprising a lamp house with one side opening, a UV curing lamp is installed in the lamp house, characterized in that: it further comprises an arc-shaped plate-shaped shutter symmetrically arranged on both sides of the UV curing lamp, each shutter is provided with a mounting shaft, and the two ends of the mounting shaft are respectively provided with a first swing arm; one of the first swing arms is rotatably connected to one side wall of the lamp house through a rotating shaft, and the other first swing arm is rotatably connected to the other side wall of the lamp house through a transmission shaft; further comprising a motor, the motor can simultaneously drive the two transmission shafts to rotate in opposite directions to control the shutter to fold or open.

[0006] As a preferred solution, it also includes a mounting plate fixed to the outer side wall of the light box, the motor is fixed on the mounting plate; the mounting plate is fixedly connected with two side plates oppositely arranged, the side walls of the two side plates are respectively provided with vertical guide grooves, and the driving plates are slidably arranged in the vertical guide grooves; the driving plate is horizontally provided with a driving groove above and a driving groove below; the output shaft of the motor is connected with an eccentric shaft, the end of the eccentric shaft is provided with a first bearing, the outer diameter of the first bearing is matched with the width of the driving groove and is arranged in the driving groove; one end of each transmission shaft is connected with one end of a second swing arm, and the other end of the second swing arm is connected with a driving shaft; the center line of the driving plate is located between the two second swing arms, and the driving shaft is provided with a second bearing, the outer diameter of the second bearing is matched with the width of the driving groove and is arranged in the driving groove; when the motor drives the eccentric shaft to rotate, the driving plate can be driven to move up and down along the vertical guide groove through the first bearing, and the up-down movement of the driving plate drives the two second swing arms to swing in opposite directions through the cooperation of the second bearing and the driving groove, and then drives the two transmission shafts to rotate in opposite directions, and finally drives the two shutters to close or open.

[0007] As a further preferred solution, the two side plates are respectively provided with an opening microswitch and a closing microswitch; the mounting plate is connected with a left touch plate and a right touch plate which move synchronously with the driving plate; when the driving plate rises to the highest point, the left touch plate triggers the opening microswitch; when the driving plate moves down to the lowest point, the right touch plate triggers the closing microswitch.

[0008] As a further preferred solution, it also includes a controller, the controller is electrically connected with the opening microswitch, the closing microswitch and the motor respectively; after receiving an external instruction, the controller controls the motor to rotate, and controls the motor to stop working when the corresponding microswitch is triggered.

[0009] The beneficial effects of the utility model are:

[0010] 1. High safety: the automatic opening and closing of the shutter is realized, the risk of exposing the operator to ultraviolet radiation when manually closing the door after the UV curing lamp is working is completely avoided, and the health and safety of the operator are effectively guaranteed.

[0011] 2. Good stability: the swing arm mechanism composed of the motor, the eccentric shaft, the driving plate, the second swing arm and the transmission shaft converts the rotary motion of the motor into the stable opening and closing action of the shutter, compared with manual operation, the action is more accurate and reliable, and the problem of not closing the shutter tightly caused by human negligence is avoided.

[0012] 3. High degree of automation: cooperate with micro switch and controller, form a closed loop control system. Controller can accurately control the opening and closing position of shutter according to preset instruction, and stop automatically after reaching the position, without manual monitoring, improve the intelligent level and production efficiency of equipment.

[0013] 4. Simple structure, easy to maintain: the overall structure is designed based on mature mechanical transmission principle, the universality of parts is strong, the assembly and maintenance are convenient, which is favorable for reducing production cost and use cost.

[0014] The utility model will be further described below in combination with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the perspective view of the specific embodiment of the utility model;

[0016] Figure 2 It is the partial exploded view of the specific embodiment of the utility model;

[0017] Figure 3 It is Figure 2 It is the enlarged view of A;

[0018] Figure 4 It is the partial structure diagram in the specific embodiment of the utility model.

[0019] Mark explanation: 1 - light box; 2 - UV curing lamp; 3 - shutter; 4 - mounting shaft; 5 - first swing arm; 6 - rotating shaft; 7 - transmission shaft; 8 - motor; 9 - mounting plate; 10 - side plate; 11 - vertical guide groove; 12 - drive plate; 13 - knob groove; 14 - drive groove; 15 - eccentric shaft; 16 - first bearing; 17 - second swing arm; 18 - knob shaft; 19 - second bearing; 20 - open micro switch; 21 - close micro switch; 22 - left contact plate; 23 - right contact plate; 24 - controller. DETAILED DESCRIPTION

[0020] The utility model will be further described below in combination with the drawings and specific embodiments. Only for further illustrating the utility model, it cannot be understood as limiting the protection scope of the utility model.

[0021] As Figure 1 - Figure 4 The utility model discloses a more stable shutter control structure. Its core lies in through the positive and negative rotation of a motor 8, via a set of exquisite swing arm transmission mechanism, synchronously drives two arc plate-shaped shutters 3 located at the both sides of UV curing lamp 2 to carry out reverse swing, thereby realizing the automatic closing and opening of light box 1 opening.

[0022] Specifically, one side of the light box 1 is open for the printing material to go in and out. The UV curing lamp 2 is installed in the center of the inner cavity of the light box 1. Two arc-shaped shutter plates 3 are symmetrically arranged on both sides of the UV curing lamp 2. The shutter plates 3 are made of aluminum and have heat dissipation protrusions on the outer peripheral walls for heat dissipation. The inner walls of the shutter plates 3 are pasted with reflective mirror pieces for reflecting the light of the UV curing lamp 2. The shutter plates 3 are normally closed to block the opening of the light box 1 and block the ultraviolet light. The bottom of each shutter plate 3 is provided with a mounting shaft 4, and the two ends of the mounting shaft 4 are fixedly connected with a first swing arm 5. The first swing arm 5 on the left side of the left shutter plate 3 is rotatably connected with the left side wall of the light box 1 through a rotating shaft 6, and the first swing arm 5 on the right side of the right shutter plate 3 is rotatably connected with the right side wall of the light box 1 through a rotating shaft 6. The first swing arm 5 on the right side of the left shutter plate 3 and the first swing arm 5 on the left side of the right shutter plate 3 are rotatably connected with the right side wall and the left side wall of the light box 1 through a transmission shaft 7, respectively. In this way, when the two transmission shafts 7 rotate in the same direction, they will drive the shutter plates 3 to rotate around the respective rotating shafts 6, but due to the arc-shaped design and installation position of the shutter plates 3, the synchronous and same-direction rotation of the two transmission shafts 7 will make the two shutter plates 3 approach or move away from each other. In order to realize the synchronous reverse rotation of the two transmission shafts 7, the following driving mechanism is adopted in this embodiment.

[0023] The motor 8 is fixed on a mounting plate 9 mounted on the outer side wall of the light box 1. Two opposite side plates 10 are also vertically fixed on the mounting plate 9, and vertical guide grooves 11 are formed on the opposite inner sides of the two side plates 10. A rectangular driving plate 12 is embedded in the two vertical guide grooves 11 through the sliding blocks (not shown in the figure) at both ends, so that it can only slide up and down in the vertical direction.

[0024] The output shaft of the motor 8 horizontally extends and is fixedly connected with an eccentric shaft 15. A first bearing 16 is mounted on the cylindrical end of the eccentric shaft 15. A horizontal driving groove 14 is formed on the bottom of the driving plate 12 along the length direction, and the width of the driving groove 14 is just matched with the outer diameter of the first bearing 16, so that the first bearing 16 can be placed in the driving groove 14 and roll along with it. When the motor 8 starts and the eccentric shaft 15 rotates, the center of the first bearing 16 will make a circular motion around the output shaft of the motor, and the radial component of the circular motion will force the driving plate 12 to make a reciprocating linear motion up and down under the constraint of the vertical guide grooves 11.

[0025] The outer end of each transmission shaft 7 is fixedly connected with a second swing arm 17 in the form of a plate, and the other end of the second swing arm 17 is connected with a push shaft 18. The center line of the driving plate 12 is located between the left and right second swing arms 17. A transverse push groove 13 is formed in the top of the driving plate 12 along the length direction, and the width of the push groove 13 is adapted to the outer diameter of the second bearing 19. Two second bearings 19 are respectively arranged on the two push shafts 18, and the two second bearings 19 are respectively arranged in the push groove 13 of the driving plate 12.

[0026] The linkage process is as follows: when the motor 8 drives the eccentric shaft 15 to rotate clockwise, the first bearing 16 pushes the driving plate 12 to move upward. Since the driving plate 12 moves upward, the push groove 13 on the driving plate 12 also moves upward, and the upper edge of the push groove 13 presses the two second bearings 19, forcing the left second swing arm 17 to swing counterclockwise and the right second swing arm 17 to swing clockwise. The two second swing arms 17 swing in opposite directions, respectively pulling the left transmission shaft 7 connected thereto to rotate counterclockwise and the right transmission shaft 7 connected thereto to rotate clockwise. The opposite rotation of the two transmission shafts 7 drives the two shutters 3 to open outward through the first swing arms 5 connected thereto. Conversely, when the motor 8 drives the eccentric shaft 15 to rotate counterclockwise, the driving plate 12 moves downward, and the lower edge of the push groove 13 presses the second bearings 19, causing the two second swing arms 17 to swing in opposite directions, thereby driving the two transmission shafts 7 to rotate in opposite directions and driving the two shutters 3 to close inward.

[0027] In order to ensure that the shutter 3 can be accurately stopped at the limit position of opening or closing, the position detection and control system is also provided in the embodiment. The opening micro switch 20 and the closing micro switch 21 are respectively arranged on the two side plates 10. At the same time, the left contact plate 22 and the right contact plate 23 are fixedly arranged on the mounting plate 9 and synchronously with the driving plate 12. When the driving plate 12 rises to the highest point under the action of the eccentric shaft 15, the left contact plate 22 moves upward and presses the button of the opening micro switch 20; at this time, the right contact plate 23 is in a low position and is not in contact with the closing micro switch 21. When the driving plate 12 moves downward to the lowest point, the right contact plate 23 presses the button of the closing micro switch 21; at this time, the left contact plate 22 is not in contact with the opening micro switch 20.

[0028] All electrical control is completed by a controller 24. The controller 24 is electrically connected with the signal output ends of the opening microswitch 20 and the closing microswitch 21 and the control end of the motor 8 respectively. In operation, the operator can send a "closing" or "opening" instruction to the controller 24 through an external button or other man-machine interface. For example, after sending a "closing" instruction, the controller 24 drives the motor 8 to rotate in a specific direction (for example, counterclockwise), and the shutter 3 starts to close. When the driving plate 12 moves down to the lowest point and the right contact plate 23 triggers the closing microswitch 21, the closing microswitch 21 sends a signal to the controller 24, and the controller 24 cuts off the power supply of the motor 8, so that the motor 8 stops rotating, and the shutter 3 is accurately stopped at the closing position. Similarly, when executing the "opening" instruction, the controller 24 drives the motor 8 to rotate in the opposite direction until the left contact plate 22 triggers the opening microswitch 20 and stops.

[0029] In summary, the utility model realizes the automatic, stable and accurate control of the UV curing lamp box shutter through the mechatronic design, effectively solves the drawbacks of manual operation, and has the advantages of safety, stability and automation.

Claims

1. A more stable shutter control structure comprising a light box (1) with one side opening, a UV curing lamp (2) is installed in the light box (1), characterized in that: Further comprising shutter (3) of arc plate shape symmetrically arranged on both sides of the UV curing lamp (2), each shutter (3) is provided with mounting shaft (4), both ends of the mounting shaft (4) are provided with first swing arm (5); one of the first swing arm (5) is rotatably connected with one side wall of the lamp box (1) through rotating shaft (6), the other first swing arm (5) is rotatably connected with the other side wall of the lamp box (1) through transmission shaft (7); further comprising a motor (8), the motor (8) can simultaneously drive two transmission shaft (7) to rotate in opposite directions, to control the shutter (3) to close or open.

2. The more stable shutter control structure of claim 1, wherein: Further comprising mounting plate (9) fixed on the outer wall of the lamp box (1), the motor (8) is fixed on the mounting plate (9); the mounting plate (9) is fixedly connected with two side plates (10) oppositely arranged, the opposite side walls of the two side plates (10) are respectively provided with vertical guide groove (11), the vertical guide groove (11) is slidably provided with driving plate (12); the driving plate (12) is provided with driving groove (14) and driving groove (13) transversely above and below; the output shaft of the motor (8) is connected with eccentric shaft (15), the end of the eccentric shaft (15) is provided with first bearing (16), the outer diameter of the first bearing (16) is matched with the width of the driving groove (14) and is arranged in the driving groove (14); one end of each transmission shaft (7) is connected with one end of second swing arm (17), the other end of the second swing arm (17) is connected with driving shaft (18); the center line of the driving plate (12) is located between the two second swing arms (17), the driving shaft (18) is provided with second bearing (19), the outer diameter of the second bearing (19) is matched with the width of the driving groove (13) and is arranged in the driving groove (13); when the motor (8) drives the eccentric shaft (15) to rotate, the first bearing (16) can drive the driving plate (12) to move up and down along the vertical guide groove (11), the up and down movement of the driving plate (12) drives the two second swing arms (17) to swing in opposite directions through the cooperation of the second bearing (19) and the driving groove (13), and then drives the two transmission shafts (7) to rotate in opposite directions, finally drives the two shutters (3) to close or open.

3. The more stable shutter control structure of claim 2, wherein: The two side plates (10) are respectively provided with opening microswitch (20) and closing microswitch (21); the mounting plate (9) is connected with left touch plate (22) and right touch plate (23) which move synchronously with the driving plate (12); when the driving plate (12) rises to the highest point, the left touch plate (22) triggers the opening microswitch (20); when the driving plate (12) moves down to the lowest point, the right touch plate (23) triggers the closing microswitch (21).

4. The more stable shutter control structure of claim 3, wherein: Also include a controller (24), the controller (24) is respectively with the open micro switch (20), the micro switch (21) and the motor (8) are electrically connected; the controller (24) receives external instruction, controls the motor (8) rotates, and when the corresponding micro switch is triggered, controls the motor (8) stops running.

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