Ink supply opening and closing assembly

Abstract

The utility model discloses an ink supply opening and closing assembly which comprises an ink outlet valve, an ink return valve, a handle and a first connecting rod connected with the handle. The first connecting rod is connected with the ink outlet valve and the ink return valve, and the handle drives the first connecting rod to move so as to drive the ink outlet valve and the ink return valve to be opened and closed. The operating handle drives the connecting rod to move, the connecting rod controls the opening and closing of the ink outlet valve and the ink return valve, the synchronization accuracy can be enhanced, the structure is simple, and the debugging and maintenance cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to inkjet machine field, concretely is a kind of ink supply opening and closing subassembly. BACKGROUND

[0002] In the ink path of inkjet machine, the output and backflow of ink are very important, this dynamic process determines the coherence and definition of print quality, and is the core prerequisite for avoiding nozzle blockage and ensuring long-term stable operation of ink path system, but the existing ink supply opening and closing subassembly lacks synchronization accuracy, has poor reliability and adaptability, and has high cost of debugging and maintenance. UTILITY MODEL CONTENTS

[0003] In view of the deficiencies in the prior art, the utility model aims at providing an ink supply opening and closing subassembly, which has high synchronization accuracy, efficiently controls the output and backflow of ink, enhances reliability and adaptability, and reduces the cost of debugging and maintenance.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an ink supply opening and closing subassembly, comprising an ink outlet valve, an ink return valve, a handle, and a first connecting rod connected with the handle; the first connecting rod is connected with the ink outlet valve and the ink return valve, and moves the first connecting rod by driving the handle to open and close the ink outlet valve and the ink return valve.

[0005] As a further improvement of the utility model, the handle is rotatably connected with the first connecting rod and is positioned at a first position and a second position by rotation, when the handle is rotated to the first position, the handle pulls the first connecting rod to open the ink outlet valve and the ink return valve; when the handle is rotated to the second position, the first connecting rod closes the ink outlet valve and the ink return valve.

[0006] As a further improvement of the utility model, a contact surface for contacting the handle is arranged on the ink outlet valve or the ink return valve at a position corresponding to the handle.

[0007] As a further improvement of the utility model, a first spring is arranged on the first connecting rod, and the first connecting rod maintains a movement trend of driving the handle towards the contact surface by the first spring.

[0008] As a further improvement of the utility model, a contact surface for contacting the handle is arranged on the ink outlet valve or the ink return valve at a position corresponding to the handle.

[0009] As a further improvement of the utility model, a contact surface for contacting the handle is arranged on the ink outlet valve or the ink return valve at a position corresponding to the handle. As a further improvement of the utility model, a contact surface for contacting the handle is arranged on the ink outlet valve or the ink return valve at a position corresponding to the handle.

[0010] As a further improvement of the utility model, the switch comprises a top cover, a second connecting rod connected with the top cover, and a clamping arm rotatably connected with the second connecting rod, the clamping arm is connected with the first connecting rod, a protrusion is arranged on the clamping arm, and when the first connecting rod moves, the clamping arm performs lever movement with the protrusion as a fulcrum, thereby opening or closing the passage.

[0011] As a further improvement of the utility model, a second spring is arranged on the second connecting rod, and the second spring keeps the top cover moving in the direction of closing the passage.

[0012] As a further improvement of the utility model, a second limiting piece is arranged on the first connecting rod at a position corresponding to the clamping arm, and when the first connecting rod drives the clamping arm to perform lever movement, the second limiting piece abuts against the clamping arm.

[0013] As a further improvement of the utility model, an arc-shaped abutting surface is arranged on the clamping arm, and the arc-shaped abutting surface abuts against the second limiting piece; and / or the contact surface of the protrusion is an arc surface.

[0014] The utility model has the advantages that the operation handle drives the connecting rod to move, the connecting rod controls the opening and closing of the ink outlet valve and the ink return valve, the synchronous accuracy can be enhanced, the structure is simple, and the cost of debugging and maintenance is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the utility model;

[0016] Figure 2 It is a schematic diagram of the first position of the handle of the embodiment of the utility model;

[0017] Figure 3 It is a schematic diagram of the second position of the handle of the embodiment of the utility model;

[0018] Figure 4 It is a sectional view of the embodiment of the utility model;

[0019] Figure 5 It is a schematic diagram of the switch of the embodiment of the utility model.

[0020] Corresponding parts are marked with the same reference numerals in the drawings: 1, ink outlet valve; 2, ink return valve; 3, handle; 4, first connecting rod; 5, first spring; 6, abutting piece; 7, first limiting piece; 8, top cover; 9, second connecting rod; 10, clamping arm; 11, protrusion; 12, second spring; 13, second limiting piece; 14, arc-shaped abutting surface. DETAILED DESCRIPTION

[0021] The utility model will be further described in detail below by combining with the embodiments shown in the drawings.

[0022] REFERENCE Figures 1-5As shown, an ink supply opening and closing assembly includes an ink outlet valve 1, an ink return valve 2, a handle 3, and a first connecting rod 4 connected with the handle 3. The first connecting rod 4 is connected with the ink outlet valve 1 and the ink return valve 2, and the handle 3 drives the first connecting rod 4 to move, thereby driving the ink outlet valve 1 and the ink return valve 2 to open and close.

[0023] In the embodiment, the handle 3 drives the first connecting rod 4 to move, thereby synchronously controlling the opening and closing of the ink outlet valve 1 and the ink return valve 2. The two valves do not need to be operated separately, the operation steps are greatly simplified, the opening and closing control efficiency of the ink supply system is improved, and the ink supply system is particularly suitable for a scene that needs to be frequently started and stopped.

[0024] Further, the handle 3 is rotationally connected with the first connecting rod 4, and is positioned at a first position and a second position by rotation. When the handle 3 is rotated to the first position, the handle 3 pulls the first connecting rod 4 to drive the ink outlet valve 1 and the ink return valve 2 to open. When the handle 3 is rotated to the second position, the first connecting rod 4 drives the ink outlet valve 1 and the ink return valve 2 to close.

[0025] In the embodiment, referring to Figure 2 When the handle 3 is rotated to the first position, the handle 3 pulls the first connecting rod 4 to drive the ink outlet valve 1 and the ink return valve 2 to open. Referring to Figure 3 When the handle 3 is rotated to the second position, the first connecting rod 4 drives the ink outlet valve 1 and the ink return valve 2 to close. The rotation of the handle 3 improves the synchronization rate of the opening and closing of the ink outlet valve 1 and the ink return valve 2, thereby preventing unexpected ink supply.

[0026] Preferably, a contact surface for contacting the handle 3 is arranged on the ink outlet valve 1 or the ink return valve 2 corresponding to the position of the handle 3.

[0027] In the embodiment, the contact surface provides an important fulcrum for the rotation of the handle 3, and limits the handle 3. The handle 3 can transmit force to the first connecting rod 4, thereby controlling the opening and closing of the ink outlet valve 1 and the ink return valve 2.

[0028] Preferably, a first spring 5 is arranged on the first connecting rod 4. The first connecting rod 4 maintains the movement trend of the handle 3 towards the contact surface through the first spring 5.

[0029] In the embodiment, the first spring 5 provides a stable driving force for the first connecting rod 4. After operation, the first connecting rod 4 can automatically reset to a preset contact position, and the spring can act as a buffer.

[0030] Further, the position corresponding to the handle 3 on the ink outlet valve 1 or the ink return valve 2 is provided with a contact piece 6, and the contact surface is located on the contact piece 6; the first limiting piece 7 is arranged on the first connecting rod 4, and the first spring 5 is located between the first limiting piece 7 and the contact piece 6, one end of the first spring 5 abuts against the contact piece 6, and the other end abuts against the first limiting piece 7.

[0031] In the embodiment, the contact piece 6 serves as a carrier of the contact surface and contacts the handle 3, so that deformation of the valve caused by direct force can be avoided; the contact piece 6 and the first limiting piece 7 realize axial precise limiting of the first spring 5, so that deviation of the spring in the stretching and retracting process can be avoided, and stability of opening and closing of the valve is increased.

[0032] Preferably, the ink outlet valve 1 and the ink return valve 2 are both provided with a channel and a switch, the channel is used for ink outlet of the ink outlet valve 1 and ink return of the ink return valve 2, the switch is used for opening or closing the channel, and the first connecting rod 4 is connected with the switch.

[0033] In the embodiment, the first connecting rod 4 directly connects the switches of the two valves, so that synchronous opening and closing control of the ink outlet channel and the ink return channel is realized, and action delay or asynchronization caused by separate operation can be avoided; the two valve switches are controlled by the first connecting rod 4, so that independent control components are reduced, and maintenance cost in the later period is reduced.

[0034] Preferably, the switch comprises a top cover 8, a switch second connecting rod 9 connected with the top cover 8, and a clamping arm 10 rotationally connected with the second connecting rod 9, the clamping arm 10 is connected with the first connecting rod 4, the clamping arm 10 is provided with a protruding block 11, when the first connecting rod 4 moves, the clamping arm 10 performs lever movement with the protruding block 11 as a fulcrum, so as to open or close the channel.

[0035] In the embodiment, the clamping arm 10 forms a lever structure with the protruding block 11 as a fulcrum, the first connecting rod 4 is connected with the clamping arm 10, and the movement of the first connecting rod 4 amplifies the force through the lever principle (referring to the position of the protruding block 11), so that only a small driving force is needed to drive the clamping arm 10, the second connecting rod 9 and the top cover 8 to move; the components of the switch have clear division of labor, the switch does not need to be replaced as a whole, the maintenance process is simplified, and the maintenance cost is reduced.

[0036] Further, the second connecting rod 9 is provided with a second spring 12, and the second spring 12 keeps the movement trend of the top cover 8 towards the direction of closing the channel.

[0037] In the embodiment, the second spring 12 keeps the movement trend of the top cover 8 towards the direction of closing the channel, and the force of the second spring 12 can help the second connecting rod 9 to reset, so as to close the channel.

[0038] Further, the position corresponding to the clamping arm 10 on the first connecting rod 4 is provided with a second limiting piece 13, and the second limiting piece 13 abuts against the clamping arm 10 when the first connecting rod 4 drives the clamping arm 10 to perform lever movement.

[0039] In the embodiment, the second limiting member 13 can limit the clamping arm 10, control the activity range of the clamping arm 10, and prevent the ink supply from being affected due to the overlarge activity of the clamping arm 10.

[0040] Further, the clamping arm 10 is provided with an arc-shaped abutting surface 14, the arc-shaped abutting surface 14 abuts against the second limiting member 13, and / or the contact surface of the protruding block 11 is an arc surface.

[0041] In the embodiment, the arc-shaped abutting surface 14 can make the rotation of the clamping arm 10 more smooth, and even if the clamping arm 10 touches the second limiting member 13 during the rotation, the clamping arm 10 can continue to rotate and will not be stuck; the contact surface of the protruding block 11 is set as an arc surface, which can make the protruding block 11 play a role as a fulcrum, and make the clamping arm 10 more smooth when driving the second connecting rod 9 to move.

[0042] Preferably, the number of outlets and inlets on the ink outlet valve 1 and the ink return valve 2 is 12.

[0043] In the embodiment, the number of outlets and inlets is set as 12, which can greatly improve the amount of ink outlet and ink return per unit time, and improve the efficiency of ink supply.

[0044] The above is only the preferred embodiment of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical solution under the idea of the present application belongs to the protection scope of the present application. It should be noted that, for ordinary technical personnel in the technical field, some improvements and decorations without departing from the principle of the present application are also considered as the protection scope of the present application.

Claims

1. An ink supply opening and closing assembly characterized by comprising: The ink outlet valve, the ink return valve, the handle, and the first connecting rod connected with the handle are included.

2. The ink feed shut-off assembly of claim 1, wherein, The handle is rotationally connected with the first connecting rod and is positioned at the first position and the second position by rotation, when the handle is rotated to the first position, the handle pulls the first connecting rod to drive the ink outlet valve and the ink return valve to open, when the handle is rotated to the second position, the first connecting rod drives the ink outlet valve and the ink return valve to close.

3. The ink feed shut-off assembly of claim 1 or 2, wherein, The position corresponding to the handle on the ink outlet valve or the ink return valve is provided with a contact surface for contacting the handle.

4. The ink feed shut-off assembly of claim 3, wherein, The first connecting rod is provided with the first spring, and the first connecting rod maintains the movement trend of the handle towards the contact surface direction by the first spring.

5. The ink feed shut-off assembly of claim 4, wherein, The position corresponding to the handle on the ink outlet valve or the ink return valve has a resisting member, and the contact surface is located on the resisting member; the first connecting rod is provided with a first limiting member, and the first spring is located between the first limiting member and the resisting member, one end of the first spring abuts against the resisting member and the other end abuts against the first limiting member.

6. The ink feed shut-off assembly of claim 1, wherein, The ink outlet valve and the ink return valve are both provided with a channel and a switch, the channel is used for ink outlet of the ink outlet valve and ink return of the ink return valve, the switch is used for opening or closing the channel, and the first connecting rod is connected with the switch.

7. The ink feed shut-off assembly of claim 6, wherein, The switch includes a top cover, a second connecting rod connected with the top cover, and a clamping arm rotationally connected with the second connecting rod, the clamping arm is connected with the first connecting rod, the clamping arm is provided with a protruding block, when the first connecting rod moves, the clamping arm performs lever movement with the protruding block as a fulcrum to drive the second connecting rod and the top cover to move, thereby opening or closing the channel.

8. The ink feed shut-off assembly of claim 7, wherein, The second connecting rod is provided with a second spring, and the second spring maintains the movement trend of the top cover towards the direction of closing the channel.

9. The ink feed shut-off assembly of claim 7, wherein, The first connecting rod is provided with a second limiting member at the position corresponding to the clamping arm, when the first connecting rod drives the clamping arm to perform lever movement, the second limiting member abuts against the clamping arm.

10. The ink feed shut-off assembly of claim 7, wherein, The clamping arm is provided with an arc-shaped abutting surface, and the arc-shaped abutting surface abuts against the second limiting member; and / or the contact surface of the protruding block is an arc surface.

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