Automatic pushing device for printing machine template

Abstract

The utility model discloses an automatic pushing device for a printing machine template, which belongs to the technical field of printing and comprises a framework, an inner frame and a workbench. The screw rod in the frame is matched with the screw hole of the inner frame, the motor drives the screw rod, the position of the inner frame is accurately adjusted, and the template in the inner frame is moved to the opening. The sliding strips on the two sides of the inner frame are matched with the frame sliding grooves, and stable movement of the inner frame is guaranteed. The inner frame is provided with the sliding ways corresponding to the templates, the templates slide in the sliding ways through the sliding strips, and movement is accurate and stable. The installation mode of the inner frame and the formwork is defined, and accurate connection and propelling are achieved through cooperation of sliding strips and protruding strips on the side wall of the formwork, an oil cylinder output shaft of a propelling mechanism and a positioning hole. An exhaust inlet and a vent hole in the end of the output shaft are communicated with a negative pressure machine to generate adsorption force, a pushing shell and a vent pipe guarantee a gas passage, hydraulic oil controls the output shaft to stretch out and draw back, and powerful and accurate power is provided.

Description

Technical Field

[0001] This utility model relates to the field of printing technology, specifically to an automatic template feeding device for a printing press. Background Technology

[0002] In traditional printing press operation, template changes are mainly done manually, a tedious and inefficient process. Operators must frequently interrupt the printing process to manually move and install templates, which not only consumes a lot of time and manpower but is also prone to inaccurate template installation due to human error, affecting print quality. As the printing industry's requirements for production efficiency and quality continue to increase, there is an urgent need for a device that can automatically advance templates to solve the drawbacks of manual template changes and improve the automation level of printing operations. Utility Model Content

[0003] To address the aforementioned technical shortcomings, the purpose of this utility model is to provide an automatic template advancing device for printing presses, which achieves efficient, precise, and stable template advancing through the coordinated operation of a motor, screw, and hydraulic cylinder.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides an automatic template feeding device for a printing press, comprising:

[0005] A frame, wherein the interior of the frame is provided with a chamber, and one side of the chamber is provided with an opening;

[0006] An inner frame is installed inside the frame, and multiple templates are slidably installed in the inner frame;

[0007] A workbench, which is fixed at an opening on one side of the frame and located at the bottom of the opening;

[0008] In this design, multiple templates within the inner frame can slide outward from the opening. A propulsion mechanism is installed on the frame, which pushes the template onto the worktable when it moves to the side of the opening.

[0009] Preferably, the inner frame is provided with multiple slides that correspond one-to-one with the template, and the template is fixed with a slide bar on the side wall, and the template is slidably installed inside the slide bar through the slide bar.

[0010] Preferably, each template has two upper and lower sliding strips on one side wall, and a protrusion is fixed between the two sliding strips. The pushing mechanism includes a hydraulic cylinder, and the protrusion has a positioning hole inside, and the output shaft of the hydraulic cylinder can be inserted into the positioning hole.

[0011] Preferably, the output shaft end of the cylinder is provided with an air intake, the inside of the output shaft is a hollow structure, and the inside of the output shaft is provided with a vent hole. The vent hole extends to the end of the output shaft and is connected to an external negative pressure machine through an air pipe. When the negative pressure machine draws air through the vent hole, the positioning hole can be attached to the end of the output shaft.

[0012] Preferably, the propulsion mechanism further includes a pusher housing, the hydraulic cylinder is fixed inside the pusher housing, and a vent pipe is fixed on the pusher housing, the vent pipe extending into the interior of the vent hole.

[0013] Preferably, a piston sleeve is fixed to the outside of the output shaft, an oil injection hole is provided on the outside of the internal output shaft of the oil cylinder, and an oil supply pipe is installed on the oil cylinder.

[0014] Preferably, a screw is rotatably mounted inside the frame, and a screw hole adapted to the screw is provided inside the inner frame. A motor for driving the screw to rotate is fixed on the frame.

[0015] Preferably, slide bars are installed on both sides of the inner frame, and the interior of the frame is provided with slide grooves that are adapted to the slide bars.

[0016] Preferably, the side wall of the frame near the workbench is a movable plate.

[0017] Preferably, the number of templates in the inner frame is four.

[0018] The beneficial effects of this utility model are as follows:

[0019] The template slides smoothly within the slideway via a slider. The precise alignment between the hydraulic cylinder output shaft and the template's convex positioning hole ensures accurate positioning of the template during advancement and installation, reducing defects such as printing ghosting and blurring.

[0020] The negative pressure adsorption and hydraulic drive output shaft extension and retraction of the propulsion mechanism can firmly stabilize the template even under high-speed propulsion or complex working conditions, preventing it from shaking or shifting, thus providing a solid guarantee for printing quality.

[0021] The sliding strips and grooves between the inner frame and the outer frame provide reliable guidance and support for the movement of the inner frame. Combined with the stable drive of the screw, this reduces vibration and wear during equipment operation, extends the service life of key components, reduces the frequency of equipment failure, and ensures continuous production. Attached Figure Description

[0022] Figure 1 This is an internal sectional view of the frame.

[0023] Figure 2 This is a diagram showing the movement of the inner frame driven by the screw.

[0024] Figure 3 This is a diagram of the inner frame structure.

[0025] Figure 4 A cross-sectional view showing the connection between the frame and the push shell.

[0026] Figure 5 This is a connection diagram of the hydraulic cylinder and the vent pipe.

[0027] Figure 6 This is a perspective view of the present invention.

[0028] In the diagram: 1. Frame, 2. Inner frame, 3. Template, 4. Opening, 5. Workbench, 6. Push shell, 7. Screw, 8. Protrusion, 9. Slide bar, 10. Hydraulic cylinder, 11. Output shaft, 12. Vent pipe, 13. Piston sleeve, 14. Oil supply pipe. Detailed Implementation

[0029] The present invention is illustrated below with specific embodiments, but these are not intended to limit the scope of the invention.

[0030] Example 1

[0031] like Figures 1-6 As shown in the figure, in this embodiment, an automatic pusher device for printing press template 3 is provided, including a frame 1, an inner frame 2 and a worktable 5.

[0032] A screw 7 is rotatably mounted inside the frame 1. The inner frame 2 has screw holes adapted to the screw 7. A motor for driving the screw 7 is fixed on the frame. When the screw 7 rotates, the inner frame 2 moves along the axis of the screw 7 within the frame 1 due to the screw hole connection, thus adjusting its position within the frame 1. Templates 3 at different positions within the inner frame 2 can be moved to the opening 4 as needed, facilitating pushing by the propulsion mechanism. The frame 1 has an internal chamber with an opening 4 on one side. The frame 1 serves as the supporting foundation for the entire device, and its internal chamber accommodates the inner frame 2, which contains multiple slidable templates 3.

[0033] The inner frame 2 is installed inside the frame 1. Four templates 3 are slidably installed in the inner frame 2. During the printing process, these four templates 3 can be pushed onto the worktable 5 in sequence through the pushing mechanism to meet certain printing task requirements. Slides 9 are installed on both sides of the inner frame 2. The inside of the frame 1 is provided with sliding grooves that are adapted to the slides 9. The slides 9 on both sides of the inner frame 2 cooperate with the sliding grooves inside the frame 1. When the inner frame 2 moves under the drive of the screw 7, the slides 9 slide in the sliding grooves, providing guidance and support for the movement of the inner frame 2, ensuring the stability of the inner frame 2 when moving within the frame 1, and preventing the inner frame 2 from shaking or tilting during the movement.

[0034] The workbench 5 is fixed at the opening 4 on one side of the frame 1 and is located at the bottom of the opening 4. The side wall of the frame 1 near the workbench 5 is a movable plate. When it is necessary to push the template 3, the movable plate can be opened to provide a channel for the template 3 to be pushed out from the opening 4. When it is not necessary to push the template 3 or to perform equipment maintenance, the movable plate can be closed to protect the internal structure of the frame 1.

[0035] In this device, multiple templates 3 in the inner frame 2 can slide outward from the opening 4. A pushing mechanism is installed on the frame 1. When the template 3 moves to one side of the opening 4, the pushing mechanism can push the template 3 from the opening 4 to the worktable 5. When the template 3 is needed, the template 3 slides to the chamber opening 4 under gravity or other auxiliary forces. At this time, the pushing mechanism on the frame 1 is activated to push the template 3 from the opening 4 to the worktable 5 fixed at the bottom of the opening 4. This completes the overall architecture of the automatic pushing device for the printing press template 3, realizing the automatic transfer of the template 3 from the storage position to the working position, and improving the efficiency of the printing press in using the template 3.

[0036] Example 2

[0037] like Figures 1-6 As shown, based on Embodiment 1, this embodiment provides an installation method for the inner frame 2 and the template 3, as detailed below:

[0038] The inner frame 2 is provided with multiple slides that correspond one-to-one with the template 3. The template 3 is fixed with a slide bar 9 on its side wall, and the template 3 is slidably installed inside the slide bar through the slide bar 9. The slide bar 9 slides in the slide bar, so that the template 3 can move smoothly and accurately in the inner frame 2, avoiding the template 3 from deviating or getting stuck during the sliding process. It provides a stable guiding structure for the sliding of the template 3 and ensures the stability of the template 3 during the movement.

[0039] Each template 3 has two upper and lower sliding strips 9 on one side wall, and a protrusion 8 is fixed between the two sliding strips 9. The pushing mechanism includes a hydraulic cylinder 10. The protrusion 8 has a positioning hole inside, and the output shaft 11 of the hydraulic cylinder 10 can be inserted into the positioning hole. When the template 3 moves to the opening 4, the output shaft 11 of the hydraulic cylinder 10 of the pushing mechanism extends and inserts into the positioning hole. The hydraulic cylinder 10 pushes the template 3 from the opening 4 to the worktable 5 through the extension and retraction of the output shaft 11. Through the cooperation of the positioning hole and the output shaft 11 of the hydraulic cylinder 10, the precise connection between the pushing mechanism and the template 3 is achieved, ensuring accurate force transmission during the pushing process and preventing the template 3 from shaking or misaligning during the pushing process.

[0040] Example 3

[0041] like Figures 1-6 As shown, based on Embodiment 1 and Embodiment 2, this embodiment provides the internal structure of the propulsion mechanism, as detailed below:

[0042] The output shaft 11 of the hydraulic cylinder 10 is equipped with an air intake at its end. The output shaft 11 has a hollow internal structure and a vent hole extending to its end. The vent hole is connected to an external negative pressure unit via an air pipe. When the negative pressure unit draws air through the vent hole, the positioning hole can adhere to the end of the output shaft 11. When the negative pressure unit starts drawing air, a negative pressure is formed in the vent hole, allowing the positioning hole on the protrusion 8 of the template 3 to adhere tightly to the end of the output shaft 11. During the pushing process, the negative pressure adsorption further prevents the template 3 from separating from the output shaft 11, especially when the template 3 is pushed at a high speed or is subjected to external interference, ensuring that the template 3 can be stably pushed onto the worktable 5.

[0043] The propulsion mechanism also includes a push shell 6, with a hydraulic cylinder 10 fixed inside the push shell 6. A vent pipe 12 is fixed on the push shell 6, extending into the vent hole. The vent pipe 12 on the push shell 6 extends into the vent hole of the output shaft 11, providing a stable gas channel between the negative pressure machine and the vent hole, ensuring that the negative pressure machine can work normally and achieve the adsorption effect on the template 3.

[0044] A piston sleeve 13 is fixed to the outside of the output shaft 11. An oil injection hole is provided inside the cylinder 10 on the outside of the output shaft 11. An oil supply pipe 14 is installed on the cylinder 10. When hydraulic oil is injected into the oil injection hole, the piston sleeve 13 is subjected to pressure, causing the output shaft 11 to contract. When hydraulic oil is withdrawn from the oil injection hole, the output shaft 11 extends under the action of pressure change inside the cylinder 10. The extension and retraction of the output shaft 11 is controlled by the injection and withdrawal of hydraulic oil, providing a power source for the propulsion mechanism. The hydraulic control method has the advantages of high power and precise control.

[0045] Working principle:

[0046] When the automatic template 3 feeding device of the printing press is working, the motor drives the screw 7 inside the frame 1 to rotate. The inner frame 2, because it is engaged with the screw 7 through the screw hole, moves along the axial direction of the screw 7 within the frame 1, transporting the template 3 to be used in the inner frame 2 to the opening 4. The template 3 in the inner frame 2 slides in the corresponding slide rail through the side wall slide bar 9, and can be smoothly moved to the opening 4. The output shaft 11 of the hydraulic cylinder 10 of the feeding mechanism is inserted into the positioning hole of the protrusion 8 of the template 3. The suction port at the end of the output shaft 11 generates a suction force when the negative pressure machine draws air through the vent hole, which enhances the connection with the template 3. The hydraulic oil is controlled to enter and exit the oil injection hole through the oil supply pipe 14, which drives the piston sleeve 13 to extend and retract the output shaft 11, pushing the template 3 to the worktable 5, realizing the automatic transfer of the template 3 from the storage position to the working position.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate and not limit the technical solutions of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to this utility model without departing from the spirit and scope of this utility model. Any modifications or partial substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An automatic template feeding device for a printing press, characterized in that, include: A frame, wherein the interior of the frame is provided with a chamber, and one side of the chamber is provided with an opening; An inner frame is installed inside the frame, and multiple templates are slidably installed in the inner frame; A workbench, which is fixed at an opening on one side of the frame and located at the bottom of the opening; In this design, multiple templates within the inner frame can slide outward from the opening. A propulsion mechanism is installed on the frame, which pushes the template onto the worktable when it moves to the side of the opening.

2. The automatic template feeding device for a printing press according to claim 1, characterized in that, The inner frame is provided with multiple slides that correspond one-to-one with the template. Slide strips are fixed on the side wall of the template, and the template is slidably installed inside the slides via the slide strips.

3. The automatic template feeding device for a printing press according to claim 2, characterized in that, Each template has two upper and lower sliding bars on one side wall, and a protrusion is fixed between the two sliding bars. The pushing mechanism includes a hydraulic cylinder. The protrusion has a positioning hole inside, and the output shaft of the hydraulic cylinder can be inserted into the positioning hole.

4. The automatic template feeding device for a printing press according to claim 3, characterized in that, The output shaft of the hydraulic cylinder is provided with an air intake at its end. The inside of the output shaft is a hollow structure with a vent hole extending to the end of the output shaft. The vent hole is connected to an external negative pressure machine through an air pipe. When the negative pressure machine draws air through the vent hole, the positioning hole can be attached to the end of the output shaft.

5. The automatic template feeding device for a printing press according to claim 4, characterized in that, The propulsion mechanism also includes a push shell, the hydraulic cylinder is fixed inside the push shell, and a vent pipe is fixed on the push shell, the vent pipe extending into the vent hole.

6. The automatic template feeding device for a printing press according to claim 3, characterized in that, A piston sleeve is fixed to the outside of the output shaft, an oil injection hole is provided on the outside of the internal output shaft of the oil cylinder, and an oil supply pipe is installed on the oil cylinder.

7. The automatic template feeding device for a printing press according to claim 1, characterized in that, The frame is internally mounted with a screw rod, and the inner frame has screw holes that are compatible with the screw rod. A motor for driving the screw rod to rotate is fixed on the frame.

8. The automatic template feeding device for a printing press according to claim 1, characterized in that, Slide bars are installed on both sides of the inner frame, and the interior of the frame is provided with slide grooves that are adapted to the slide bars.

9. The automatic template feeding device for a printing press according to claim 1, characterized in that, The side wall of the frame near the workbench is a movable plate.

10. An automatic template feeding device for a printing press according to claim 1, characterized in that, The number of templates in the inner frame is four.

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