Sleeve steel letterhead printing fixture

Abstract

This utility model discloses a printing fixture for sleeve steel letterheads, relating to the field of railway parts processing technology. It includes a frame, with a rotary conveying unit, a printing unit, and a feeding unit on the top surface of the frame. A drive motor for the rotary conveying unit is located inside the frame. The rotary conveying unit includes concentrically welded large and small diameter cylindrical platforms, with the large-diameter cylindrical platform connected to the drive motor. The printing unit includes a letter mold assembly tangent to the surface of the rotary conveying unit and a lead screw slide that drives its movement. The feeding unit includes a guide component and an inclined slide structure. In use, the round steel segment is placed upright on the rotary conveying unit, and as it rotates, it passes through the printing unit to complete circumferential printing. The finished product is then guided and collected by the feeding unit. This achieves continuous automated printing, improving efficiency, reducing labor intensity, and ensuring stable printing quality.

Description

Technical Field

[0001] This utility model relates to the field of railway parts processing technology, specifically a sleeve steel lettering printing fixture. Background Technology

[0002] As an auxiliary steel structure product for railway special equipment, sleeves require the printing of steel prefixes and batch numbers for product traceability management. Currently, the printing of these prefixes on sleeves mainly relies on manual hammering using steel type molds, which results in high labor intensity, low production efficiency, and inconsistent lettering depth and placement. How to achieve continuous, automatic, and neat printing on the cylindrical surface of round steel segments, the raw material for sleeves, is a pressing problem that needs to be solved. Utility Model Content

[0003] The present invention aims to solve the above problems, thereby providing a sleeve steel letterhead printing fixture that can achieve continuous automatic printing, reduce labor intensity, and ensure stable printing quality.

[0004] The technical solution adopted by this utility model to solve the aforementioned problem is: A printing fixture for sleeve steel characters includes a frame. A rotary conveying unit for carrying and transporting round steel segments is mounted on the top surface of the frame. A drive motor for rotating the rotary conveying unit is located inside the frame. The rotary conveying unit includes a large-diameter cylindrical platform and a small-diameter cylindrical platform arranged concentrically. The small-diameter cylindrical platform is welded and fixed to the upper surface of the large-diameter cylindrical platform, and the large-diameter cylindrical platform is connected to the drive motor. A printing unit and a feeding unit are also mounted on the top surface of the frame. The printing unit includes a character mold assembly tangent to the surface of the rotary conveying unit and a lead screw slide for moving the character mold assembly. The feeding unit is located downstream of the rotary conveying unit and includes a guide component for changing the posture of the round steel segments and a slide structure for collecting the round steel segments.

[0005] Furthermore, the character mold assembly is connected to the slider of the lead screw slide table by bolts, and its working surface is provided with raised steel characters. The arrangement direction of the steel characters is parallel to the axis of the round steel segment, which facilitates the replacement of different character mold assemblies.

[0006] Furthermore, the slide structure is arranged at an angle, with limiting baffles on both sides to prevent the round steel segments from falling off; the round steel segments slide smoothly by their own weight, while the limiting effect of the baffles prevents the round steel segments from accidentally rolling off during the conveying process.

[0007] Furthermore, the guide component adopts a long strip-shaped metal lever, which is fixed to the side of the slide structure entrance away from the material feeding direction. The end of the lever extends towards the side of the small-diameter cylindrical platform and is clearance-fitted with the small-diameter cylindrical platform. When the round steel section reaches the unloading position, its posture is smoothly changed by the guiding action of the lever, so that it can smoothly transition from the upright state to the slide, which helps to achieve a continuous and smooth unloading process.

[0008] Furthermore, the top surface of the frame, and both upstream and downstream sides of the printing unit, are equipped with arc-shaped guide plates; these provide auxiliary guidance when the round steel segment enters and leaves the printing area, helping to maintain the stable posture of the round steel segment during the conveying process and ensuring the smooth operation of the printing process.

[0009] Compared with the prior art, the outstanding features of this utility model, which adopts the above technical solution, are: In use, this invention first adjusts the extrusion pressure of the printing unit so that the steel letterheads can contact and press against the surface of the steel segment to be printed when it passes through the printing unit. Then, the drive motor is started to rotate the rotary conveyor unit. The worker only needs to continuously place the steel segments upright on the top surface of the large-diameter cylindrical platform. As the rotary conveyor unit rotates, the steel segments pass through the printing unit, and the friction causes the steel segments to rotate simultaneously during the conveying process, thereby completing the circumferential surface imprinting and ensuring the clarity and completeness of the printed characters. Subsequently, the unloading unit tilts down the printed upright steel segments and guides them for collection. Through the coordinated work of the rotary conveyor unit, the printing unit, and the unloading unit, continuous automated operation of printing steel letterheads on steel segments is achieved, significantly improving printing efficiency and reducing the labor intensity of workers. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the main structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the structure of the rotary conveying unit according to an embodiment of the present invention; The components in the diagram are labeled as follows: 1. Frame; 2. Rotary conveyor unit; 3. Round steel section; 4. Printing unit; 5. Unloading unit; 6. Guide plate; 7. Collection box; 21. Large diameter cylindrical platform; 22. Small diameter cylindrical platform; 51. Guide component; 52. Slide structure. Detailed Implementation

[0011] The present invention will be further described below with reference to embodiments, the purpose of which is only to better understand the content of the present invention. Therefore, the examples given do not limit the scope of protection of the present invention.

[0012] See Figures 1-2A type printing fixture for sleeve steel characters includes a frame 1. A rotary conveying unit 2 for carrying and conveying round steel segments 3 is disposed on the top surface of the frame 1. A drive motor for rotating the rotary conveying unit 2 is disposed inside the frame 1. The rotary conveying unit 2 includes a large-diameter cylindrical platform 21 and a small-diameter cylindrical platform 22 arranged concentrically. The small-diameter cylindrical platform 22 is welded and fixed to the upper surface of the large-diameter cylindrical platform 21, and the large-diameter cylindrical platform 21 is connected to the drive motor. A printing unit 4 and a feeding unit 5 are also disposed on the top surface of the frame 1. The printing unit 4 includes a character mold assembly tangent to the surface of the rotary conveying unit 2 and a lead screw slide for driving the character mold assembly. The feeding unit 5 is disposed downstream of the rotary conveying unit 2 and includes a guide component 51 for changing the posture of the round steel segments 3 and a slide structure 52 for collecting the round steel segments 3.

[0013] The letter mold assembly is connected to the slider of the lead screw slide by bolts, and its working surface is provided with raised steel letter heads. The arrangement direction of the steel letter heads is parallel to the axis of the round steel segment 3, which facilitates the replacement of different letter mold assemblies.

[0014] The slide structure 52 is arranged at an angle, and there are limiting baffles on both sides to prevent the round steel section 3 from falling off; the round steel section 3 uses its own weight to achieve smooth sliding down, and at the same time, the limiting effect of the baffles prevents the round steel section 3 from accidentally rolling off during the conveying process.

[0015] The guide component 51 adopts a long strip-shaped metal lever. The lever is fixed to the side of the inlet end of the slide structure 52 away from the material feeding direction. The end of the lever extends to the side of the small diameter cylindrical platform 22 and is clearance-fitted with the small diameter cylindrical platform 22. When the round steel section 3 reaches the unloading position, its posture is smoothly changed by the guiding action of the lever, so that it can smoothly transition from the upright state to the slide, which helps to achieve a continuous and smooth unloading process.

[0016] Arc-shaped guide plates 6 are provided on the top surface of the frame 1 and on both the upstream and downstream sides of the printing unit 4; they provide auxiliary guidance when the round steel section 3 enters and leaves the printing area, which helps to maintain the stable posture of the round steel section 3 during the conveying process and helps to ensure the smooth operation of the printing process.

[0017] In use, this invention first adjusts the extrusion pressure of the printing unit 4 so that when the round steel segment 3 passes through the printing unit 4, the steel letterhead can contact and press against the surface of the round steel segment 3 to be printed. Then, the drive motor is started to rotate the rotary conveyor unit 2. The worker only needs to continuously place the round steel segment 3 upright on the top surface of the large-diameter cylindrical platform 21. As the rotary conveyor unit 2 rotates, the round steel segment 3 passes through the printing unit 4. The friction force causes the round steel segment 3 to rotate simultaneously during the conveying process, thereby completing the circumferential surface imprinting and ensuring the clarity and completeness of the printed text. Subsequently, the unloading unit 5 tilts the printed upright round steel segment 3 and guides it to the collection box 7 below the slide for collection. Through the coordinated work of the rotary conveyor unit 2, the printing unit 4, and the unloading unit 5, continuous automated operation of printing the steel letterhead of the round steel segment 3 is achieved, significantly improving printing efficiency and reducing the labor intensity of workers.

[0018] The above description is only a preferred embodiment of the present utility model and does not limit the scope of the present utility model. All equivalent changes made based on the content of the present utility model specification and its drawings are included within the scope of the present utility model.

Claims

1. A sleeve steel letterhead printing fixture, comprising a frame, characterized in that: The top surface of the frame is equipped with a rotary conveyor unit for carrying and transporting round steel segments. Inside the frame is a drive motor that drives the rotary conveyor unit to rotate. The rotary conveyor unit includes a large-diameter cylindrical platform and a small-diameter cylindrical platform arranged concentrically. The small-diameter cylindrical platform is welded and fixed to the upper surface of the large-diameter cylindrical platform, and the large-diameter cylindrical platform is connected to the drive motor. The top surface of the frame also includes a printing unit and a feeding unit. The printing unit includes a character mold assembly tangent to the surface of the rotary conveyor unit and a lead screw slide that drives the character mold assembly to move. The feeding unit is located downstream of the rotary conveyor unit and includes a guide component that changes the posture of the round steel segments and a slide structure that collects the round steel segments.

2. The sleeve steel letterhead printing fixture according to claim 1, characterized in that: The letter mold assembly is connected to the slider of the lead screw slide by bolts, and its working surface is provided with raised steel letter heads. The arrangement direction of the steel letter heads is parallel to the axial direction of the round steel segment.

3. The sleeve steel letterhead printing fixture according to claim 1, characterized in that: The slide structure is arranged at an angle, and there are limiting baffles on both sides to prevent the round steel sections from falling off.

4. The sleeve steel letterhead printing fixture according to claim 1, characterized in that: The guide component adopts a long strip-shaped metal lever. The lever is fixed to the side of the slide structure entrance away from the material feeding direction. The end of the lever extends towards the side of the small-diameter cylindrical platform and is clearance-fitted with the small-diameter cylindrical platform.

5. The sleeve steel letterhead printing fixture according to claim 1, characterized in that: The top surface of the frame is equipped with arc-shaped guide plates on both the upstream and downstream sides of the printing unit.

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