An ink conditioning device for carton printing

Abstract

This utility model discloses an ink-mixing device for carton printing, including an adjusting box. The top of the adjusting box is covered and fixed with a cover plate, and the bottom of the adjusting box has a guide hole. An adjusting tube is vertically fixed to the bottom of the inner side of the adjusting box. The adjusting tube is vertically continuous, and the bottom of the adjusting tube and the guide hole are coaxially arranged. Several equally spaced flow-limiting holes are opened on the side wall of the adjusting tube along its height direction. The controller starts and adjusts the electric push rod and drives the piston to move upward. When the piston ring disengages from the blockage of the guide hole, the more flow-limiting holes on both sides of the adjusting tube are exposed for each step of the piston ring's upward stroke. At the same time, the unit amount of ink in the adjusting box enters the lower part of the adjusting tube through the flow-limiting holes is greater, and vice versa. After the ink filling is completed, the piston ring descends and completely blocks the guide hole, avoiding the ink seepage that occurs when the existing device is not in use.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary equipment for carton printing, specifically an ink mixing device for carton printing. Background Technology

[0002] Cardboard boxes are currently the most widely used packaging products. Depending on the materials used, they include corrugated cardboard boxes and single-layer cardboard boxes. During the cardboard box manufacturing process, it is sometimes necessary to print patterns on the surface. A cardboard box printing machine is used to print the required text, patterns, and other information onto the surface of the cardboard box during processing. Existing printing machines generally cannot adjust the ink output according to the user's needs. In related technologies, such as the ink adjusting device for cardboard box printing described in patent CN216832830U, an adjusting chamber is installed using a mounting bracket. The ink output is controlled through the combined use of a flow restrictor, a drive motor, and a control valve. The more flow restrictor holes are blocked, the less ink is output. This invention allows for control of the ink output according to user needs, reducing printing quality problems caused by excessive ink output, improving the practicality of the device, and meeting the needs of operators.

[0003] In the above technical solution, the bottom of the baffle used to adjust the ink volume is theoretically close to or in contact with the bottom of the inner side of the adjustment chamber. However, this atypical sealing contact is not conducive to the effective sealing of the flow restriction hole after the baffle is fully covered. When not in use, ink leakage is inevitable. The structural rationality and practicality need to be further improved. Utility Model Content

[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0005] Therefore, the purpose of this utility model is to provide an ink adjustment device for carton printing, so as to solve the problem mentioned in the background art that in the prior art ink adjustment device for carton printing, the bottom of the baffle used to adjust the ink volume is theoretically close to or in contact with the bottom of the inner side of the adjustment chamber. However, this typical sealed contact is not conducive to the effective sealing of the flow restriction hole after the baffle is fully covered, and the problem of ink seepage is inevitable when not in use.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an ink adjustment device for carton printing, comprising an adjustment box, a cover plate fixedly covering the top of the adjustment box, a guide hole at the bottom of the adjustment box, an adjustment tube vertically fixed to the bottom of the inner side of the adjustment box, the adjustment tube being vertically continuous and the bottom of the adjustment tube being coaxially arranged with the guide hole, a plurality of equally spaced flow-limiting holes being opened on the side wall of the adjustment tube along its height direction, the flow-limiting holes being opened from bottom to top along the side wall of the adjustment tube, a piston component being matched on the inner side of the adjustment tube, and a lifting drive device for driving the piston component to move up and down; Specifically, when the piston descends to its lowest point, it can block the guide hole; when the piston gradually rises from bottom to top, the amount of ink entering the regulating tube in the regulating box increases.

[0007] As a preferred embodiment of the ink adjustment device for carton printing described in this utility model, the bottom of the adjustment box is further fixed with a discharge pipe coaxial with the guide hole, and the upper side of the adjustment box is fixedly connected with a feed pipe.

[0008] As a preferred embodiment of the ink adjustment device for carton printing described in this utility model, the piston component includes a valve seat located in the inner cavity of the adjusting tube, a piston ring fixedly sleeved on the horizontal circumference and bottom of the valve seat, and a connecting rod vertically fixed to the top of the valve seat. The piston ring also has a tapered surface at its bottom.

[0009] In a preferred embodiment of the ink adjustment device for carton printing described in this utility model, the diameter of the guide hole is smaller than the inner diameter of the adjusting tube, and the inner diameter of the discharge tube is greater than or equal to the diameter of the guide hole.

[0010] In a preferred embodiment of the ink adjustment device for carton printing described in this utility model, an electric push rod is vertically fixed to the upper end of the cover plate, the piston rod end of the electric push rod passes through the cover plate and is fixedly connected to the top of the connecting rod, and a sealing bushing that is interference-fitted with the outer circumference of the piston rod of the electric push rod is also fixed to the inner side of the cover plate.

[0011] In a preferred embodiment of the ink adjustment device for carton printing described in this utility model, a controller connected to the electric push rod signal is also provided on the outside of the adjustment box.

[0012] In a preferred embodiment of the ink adjustment device for carton printing described in this utility model, a sealing ring is embedded at the interface between the cover plate and the adjustment box, and the cover plate and the adjustment box are fixedly connected by locking screws.

[0013] As a preferred embodiment of the ink adjustment device for carton printing described in this utility model, at least one positioning bracket is fixed on the outer side of the bottom of the adjustment box, and the positioning bracket is provided with multiple mounting holes.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: After the regulating box is installed and the bottom discharge pipe is connected to the ink inlet of the printing press, when it is necessary to control the ink output, the operator can start and adjust the electric push rod through the controller to drive the piston to move upward. When the piston ring disengages from the blockage of the guide hole, the more the flow-limiting holes on both sides of the regulating tube are exposed for each step the piston ring rises, the greater the unit ink volume of ink in the regulating box enters the lower part of the regulating tube through the flow-limiting holes, and vice versa. After the ink filling is completed, the piston ring descends and completely blocks the guide hole, avoiding the ink seepage that occurs when the existing device is not in use. While meeting the usage requirements, the structural rationality and practicality are further improved. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall external structure of this utility model; Figure 2 This is a schematic diagram of the half-sectional structure of the adjustment box of this utility model; Figure 3 This is a schematic diagram of the piston component structure of this utility model; Figure 4 This is a demonstration diagram of the ink output of this utility model.

[0016] In the diagram: 100, regulating box; 100a, guide hole; 110, cover plate; 120, discharge pipe; 130, sealing ring; 140, locking screw; 200, regulating tube; 200a, flow limiting hole; 300, piston; 310, valve seat; 320, piston ring; 330, connecting rod; 400, electric actuator; 410, sealing bushing; 500, feed pipe; 600, controller; 700, positioning bracket. Detailed Implementation

[0017] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0018] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0020] Figures 1-4 The diagram shown is a complete structural schematic of an ink mixing device for cardboard box printing according to this utility model. Please refer to [link / reference]. Figures 1-4 This embodiment of an ink mixing device for carton printing includes an adjusting box 100, a cover plate 110 fixedly covering the top of the adjusting box 100, a guide hole 100a at the bottom of the adjusting box 100, and an adjusting tube 200 vertically fixed to the bottom of the inner side of the adjusting box 100. The adjusting tube 200 is vertically continuous and the bottom of the adjusting tube 200 is coaxial with the guide hole 100a. Several equally spaced flow-limiting holes 200a are opened on the side wall of the adjusting tube 200 along its height direction, and the flow-limiting holes 200a are opened from bottom to top along the side wall of the adjusting tube 200. A piston 300 and a lifting drive device for driving the piston 300 to move up and down are matched inside the adjusting tube 200. When the piston 300 descends to the lowest point, it can block the guide hole 100a. When the piston 300 gradually rises from bottom to top, the amount of ink entering the adjusting tube 200 from the adjusting box 100 is greater.

[0021] The bottom of the regulating box 100 is also fixed with a discharge pipe 120 coaxial with the guide hole 100a, and the upper side of the regulating box 100 is fixedly connected to a feed pipe 500. The piston component 300 includes a valve seat 310 located in the inner cavity of the regulating tube 200, a piston ring 320 fixedly sleeved on the horizontal circumference and bottom of the valve seat 310, and a connecting rod 330 vertically fixed to the top of the valve seat 310; wherein, the bottom of the piston ring 320 also has a tapered surface. The diameter of the guide hole 100a is smaller than the inner diameter of the regulating tube 200, and the inner diameter of the discharge pipe 120 is greater than or equal to the diameter of the guide hole 100a. It can be understood that the tapered surface at the bottom of the piston ring 320 is conducive to forming a downward seal on the guide hole 100a, which has a better and more reasonable sealing structure compared with the prior art. An electric actuator 400 is vertically fixed to the upper end of the cover plate 110. The piston rod end of the electric actuator 400 passes through the cover plate 110 and is fixedly connected to the top of the connecting rod 330. A sealing bushing 410 that is interference-fitted with the outer circumference of the piston rod of the electric actuator 400 is also fixed to the inner side of the cover plate 110. A controller 600 that is signal-connected to the electric actuator 400 is also provided on the outer side of the adjusting box 100. Specifically, after the regulating box 100 is installed and the bottom discharge pipe 120 is connected to the ink inlet of the printing press, when it is necessary to control the ink output, the operator can start and adjust the electric push rod 400 through the controller 600 to drive the piston 300 to move upward. When the piston ring 320 is released from the blockage of the guide hole 100a, the more the flow limiting holes 200a on both sides of the regulating tube 200 are exposed for each step the piston ring 320 rises, the greater the unit amount of ink in the regulating box 100 enters the lower part of the regulating tube 200 through the flow limiting holes 200a, and vice versa. After the ink filling is completed, the piston ring 320 descends and completely blocks the guide hole 100a, avoiding the situation of ink seepage when the existing device is not in use.

[0022] Furthermore, a sealing ring 130 is embedded at the interface between the cover plate 110 and the adjusting box 100, and the cover plate 110 and the adjusting box 100 are fixedly connected by a locking screw 140. It can be understood that the cover plate 110 and the adjusting box 100 can be fixed and sealed together by the cooperation of the sealing ring 130 and the locking screw 140. Moreover, when removing the cover plate 110, the electric actuator 400 and the piston 300 can be removed together, facilitating installation and subsequent maintenance.

[0023] Furthermore, at least one positioning bracket 700 is fixed to the outer bottom of the adjustment box 100, and the positioning bracket 700 has multiple mounting holes. With the cooperation of the positioning bracket 700, mounting holes, and locking components such as bolts, the adjustment box 100 can be easily installed on the printing press. Of course, the specific shape and position of the positioning bracket 700 can be set according to the actual situation of the equipment structure, and there is no limitation thereto.

[0024] In summary, the ink adjustment device for carton printing according to this embodiment, after the adjustment box 100 is installed and the bottom discharge pipe 120 is connected to the ink inlet of the printing press, when it is necessary to control the ink output, the operator can start and adjust the electric push rod 400 through the controller 600 to drive the piston 300 to move upward. When the piston ring 320 is released from the blockage of the guide hole 100a, the more the flow restriction holes 200a on both sides of the adjustment tube 200 are exposed for each step of the piston ring 320's upward stroke, the greater the unit ink volume of ink in the adjustment box 100 enters the lower part of the adjustment tube 200 through the flow restriction holes 200a, and vice versa. After the ink filling is completed, the piston ring 320 descends and completely blocks the guide hole 100a, avoiding the ink seepage that occurs when the existing device is not in use. While meeting the usage requirements, the structural rationality and practicality are further improved.

[0025] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An ink mixing device for cardboard box printing, characterized in that, The system includes an adjustment box (100), the top of which is covered and fixed with a cover plate (110), the bottom of which has a guide hole (100a), and an adjustment tube (200) is vertically fixed to the bottom of the inner side of the adjustment box (100). The adjustment tube (200) is vertically connected and the bottom of the adjustment tube (200) is coaxial with the guide hole (100a). The side wall of the adjustment tube (200) is provided with several equally spaced flow-limiting holes (200a) along its height direction, and the flow-limiting holes (200a) are opened from bottom to top along the side wall of the adjustment tube (200). The inner side of the adjustment tube (200) is matched with a piston (300) and a lifting drive device for driving the piston (300) to move up and down. When the piston (300) descends to its lowest point, it can block the guide hole (100a). When the piston (300) gradually rises from bottom to top, the amount of ink entering the regulating tube (200) in the regulating box (100) increases.

2. The ink mixing device for carton printing according to claim 1, characterized in that: The bottom of the regulating box (100) is also fixed with a discharge pipe (120) coaxial with the guide hole (100a), and the upper side of the regulating box (100) is fixedly connected with a feed pipe (500).

3. The ink mixing device for carton printing according to claim 1, characterized in that: The piston component (300) includes a valve seat (310) located in the inner cavity of the regulating tube (200), a piston ring (320) fixedly sleeved on the horizontal periphery and bottom of the valve seat (310), and a connecting rod (330) vertically fixed to the top of the valve seat (310). The piston ring (320) also has a tapered surface at its bottom.

4. The ink mixing device for carton printing according to claim 2, characterized in that: The diameter of the guide hole (100a) is smaller than the inner diameter of the regulating tube (200), and the inner diameter of the discharge pipe (120) is greater than or equal to the diameter of the guide hole (100a).

5. The ink mixing device for carton printing according to claim 1, characterized in that: An electric actuator (400) is vertically fixed at the upper end of the cover plate (110). The bottom piston rod end of the electric actuator (400) passes through the cover plate (110) and is fixedly connected to the top of the connecting rod (330). A sealing bushing (410) that is interference-fitted with the outer circumference of the piston rod of the electric actuator (400) is also fixed on the inner side of the cover plate (110).

6. The ink mixing device for carton printing according to claim 1, characterized in that: The outside of the adjustment box (100) is also provided with a controller (600) that is connected to the electric push rod (400) by signal.

7. The ink mixing device for carton printing according to claim 1, characterized in that: A sealing ring (130) is also embedded at the interface between the cover plate (110) and the adjustment box (100), and the cover plate (110) and the adjustment box (100) are fixedly connected by locking screws (140).

8. The ink mixing device for carton printing according to claim 1, characterized in that: At least one positioning bracket (700) is fixed on the outer bottom of the adjustment box (100), and multiple mounting holes are provided on the positioning bracket (700).

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