Large printer roller support riveting equipment

Abstract

The utility model discloses a large printer roller support riveting device which comprises a product positioning and conveying mechanism and a product riveting mechanism, the product positioning and conveying mechanism comprises a lead screw mechanism, a translation frame connected with a lead screw nut of the lead screw mechanism, a positioning column arranged on the translation frame and a product pressing mechanism, the product riveting mechanism comprises a riveting rod and an ejector rod which are oppositely arranged up and down, a riveting hole is formed in the end face, opposite to the ejector rod, of the riveting rod, the inner diameter of the riveting hole is larger than the outer diameter of the ejector rod, the riveting rod is connected to a riveting rod driving air cylinder, the ejector rod is connected to an ejector rod driving air cylinder, and the riveting rod and the ejector rod are located beside the product positioning and conveying mechanism. The end of the riveting rod abuts against the edge of the upper plate / lower plate, the ejector rod abuts against the edge of the upper plate / lower plate, the pressed parts of the upper plate and the lower plate are ejected into the riveting hole, the pressed parts of the upper plate and the lower plate generate plastic deformation, riveting of the edges of the upper plate and the lower plate is achieved, and then the upper plate and the lower plate are connected.

Description

Technical Field

[0001] The utility model relates to production equipment for printing equipment, in particular to production equipment for large-scale printer parts. Background Art

[0002] During printing, paper moves from the inlet to the outlet of a large printer. The printer features a roller that drives the paper. The roller is mounted on a roller shaft, which in turn is mounted on a roller bracket. The roller bracket is a plate structure composed of an upper plate and a lower plate. To achieve this connection, the edges of the upper and lower plates are riveted together. Utility Model Content

[0003] The technical problem solved by the utility model is how to realize the riveting of the edges of the upper plate and the lower plate of a roller bracket of a large printer.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: a large printer roller bracket riveting device, including a product positioning and conveying mechanism and a product riveting mechanism, the product positioning and conveying mechanism includes a screw mechanism, a translation frame connected to the screw nut of the screw mechanism, a positioning column arranged on the translation frame, and a product clamping mechanism, the product riveting mechanism includes a riveting rod and a push rod arranged opposite to each other in the upper and lower parts, and a rivet hole is provided on the opposite end surface of the riveting rod and the push rod, the inner diameter of the rivet hole is larger than the outer diameter of the push rod, the riveting rod is connected to the riveting rod driving cylinder, and the push rod is connected to the push rod driving cylinder. The riveting rod and the push rod are located beside the product positioning and conveying mechanism.

[0005] The upper and lower plates of the roller bracket are aligned together, and the corresponding holes on them cooperate with the positioning columns. In this way, the upper and lower plates are positioned on the translation frame. Afterwards, the product clamping mechanism presses the upper and lower plates against the translation frame, and the upper and lower plates are fixed. Afterwards, driven by the screw mechanism, the translation frame translates, and the edges of the upper and lower plates come between the rivet rod and the push rod. Driven by the rivet rod driving cylinder, the end of the rivet rod abuts against the edge of the upper / lower plate. Driven by the push rod driving cylinder, the push rod presses against the edge of the upper / lower plate, pushing the pressed portion of the upper and lower plates into the rivet hole, causing plastic deformation of the pressed portion of the upper and lower plates, achieving riveting of the edges of the upper and lower plates, and then achieving the connection between the upper and lower plates.

[0006] The translation frame includes a product carrier plate and a bottom slide, with a vertical plate connecting the two. A slider is provided at the bottom of the bottom slide, which cooperates with a slide rail, which is mounted on the equipment frame. The screw rod of the screw mechanism is inserted into the guide frame. The translation frame semi-encloses the guide frame, which is hollow and mounted on the equipment frame. Strip-shaped bottom slide grooves are provided on both side walls of the guide frame. The bottom slide is provided with a screw nut connecting plate, which is located in the guide frame and threadedly connected to the screw rod. A motor is installed on the equipment frame to drive the screw rod to rotate. The screw rod is pivotally connected to the front and rear side walls of the guide frame via bearings. The rotating screw rod drives the screw nut to move linearly, which in turn drives the bottom slide to move linearly along the slide rail. The bottom slide drives the entire translation frame to move linearly, and the upper and lower plates positioned on the translation frame move accordingly.

[0007] The product pressing mechanism includes a product pressing cylinder, a product pressing connecting rod connected to the product pressing cylinder, and a product pressing head arranged on the product pressing connecting rod.

[0008] The ejector pin is fixed to the ejector pin support, to which a pair of guide supports are fixed. A pressure block is provided between the pair of guide supports. The pressure block can be raised and lowered relative to the guide supports. The pressure block defines an ejector pin hole, in which the ejector pin movably fits. A return spring is provided between the pressure block and the ejector pin support. The ejector pin support is connected to the piston rod of the ejector pin drive cylinder. Driven by the ejector pin drive cylinder, the ejector pin support moves toward the edge of the upper / lower plate. The pressure block first contacts the upper / lower plate. The ejector pin drive cylinder then drives the ejector pin support to move. The pressure block moves relative to the pair of guide supports. The ejector pin extends out of the ejector pin hole, pressing the upper / lower plate, and pushing the pressed portions of the upper and lower plates into the riveted holes of the riveting rod.

[0009] The guide support has guide grooves and bolt clearance slots. The guide grooves are fitted with guide blocks. Bolts fit into the bolt clearance slots, pass through the guide blocks, and connect to the push block. Driven by the push rod drive cylinder, the push rod support moves toward the edge of the upper / lower plate. The push block first contacts the upper / lower plate. The push rod drive cylinder then drives the push rod support to move. The push block moves relative to the pair of guide supports, the guide blocks move along the guide grooves, and the bolts move along the bolt clearance slots. The push rod extends through the push rod hole and presses against the upper / lower plate, forcing the pressed portions of the upper and lower plates into the rivet holes of the rivet rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The present invention will be further described below with reference to the accompanying drawings:

[0011] Figure 1 This is a schematic diagram of the riveting equipment for the roller bracket of a large printer;

[0012] Figure 2for Figure 1 A schematic diagram showing the riveting equipment for the roller bracket of a large printer, viewed from the middle side;

[0013] Figure 3 for Figure 1 Schematic diagram of the combined structure of the middle push rod 21 and the push rod support 23;

[0014] Figure 4 for Figure 3 Left view of;

[0015] Figure 5 for Figure 3 Left view of , dotted lines omitted;

[0016] Figure 6 This is a schematic diagram of the push rod block 25 moving downward and the push rod 22 being exposed;

[0017] Figure 7 for Figure 6 Left view of;

[0018] Figure 8 Schematic diagram of the top rod 22 and the riveting rod 21 riveting the edges of the upper and lower plates of the product (roller bracket);

[0019] Figure 9 for Figure 8 Enlarged view of point A in the middle.

[0020] Explanation of symbols in the figure:

[0021] 10. Product positioning and conveying mechanism; 11. Translation frame; 111. Product carrier; 112. Bottom slide; 113. Vertical plate; 114. Slider; 115. Slide rail; 12. Screw; 13. Guide frame; 131. Bottom slide groove; 14. Screw nut connecting plate; 15. Product pressing cylinder; 151. Product pressing connecting rod; 152. Product pressing head;

[0022] 20. Product riveting mechanism; 21. Riveting rod; 210. Riveting hole; 211. Riveting rod driving cylinder; 22. Ejector rod; 221. Ejector rod driving cylinder; 222. Piston rod of ejector rod driving cylinder; 23. Ejector rod support; 24. Guide support; 241. Guide groove; 242. Bolt clearance groove; 25. Ejector block; 251. Ejector rod hole; 26. Return spring; 27. Guide block; 28. Bolt;

[0023] 30. Equipment rack; 31. Gantry;

[0024] 91. The edge of the upper plate of the roller bracket; 92. The edge of the lower plate of the roller bracket. DETAILED DESCRIPTION

[0025] Combine Figure 1 、 Figure 2 The large-scale printer roller bracket riveting equipment includes a product positioning and conveying mechanism 10 and a product riveting mechanism 20. The product positioning and conveying mechanism includes a screw mechanism, a translation frame 11 connected to the screw nut of the screw mechanism, a positioning column arranged on the translation frame, and a product clamping mechanism. The product riveting mechanism 20 includes a riveting rod 21 and a push rod 22 arranged opposite to each other in the upper and lower directions. A rivet hole 210 is provided on the end surface opposite to the riveting rod and the push rod. The inner diameter of the rivet hole is larger than the outer diameter of the push rod. The riveting rod is connected to the riveting rod driving cylinder 211, and the push rod is connected to the push rod driving cylinder 221. The riveting rod and the push rod are located beside the product positioning and conveying mechanism 10.

[0026] refer to Figure 8 、 Figure 9 , the upper plate and the lower plate of the roller bracket are aligned together, and the corresponding holes on them cooperate with the positioning columns, so that the upper plate and the lower plate are positioned on the translation frame 11. Afterwards, the product pressing mechanism presses the upper plate and the lower plate on the translation frame 11, and the upper plate and the lower plate are fixed. Afterwards, driven by the screw mechanism, the translation frame 11 translates, and the edges of the upper plate and the lower plate come between the rivet rod 21 and the push rod 22. Under the drive of the rivet rod driving cylinder 211, the end of the rivet rod 21 is abutted against the edge of the upper plate / lower plate. Under the drive of the push rod driving cylinder 221, the push rod 22 presses against the edge of the upper plate / lower plate, pushing the pressed part of the upper plate and the lower plate into the rivet hole 210, causing the pressed part of the upper plate and the lower plate to undergo plastic deformation, thereby achieving riveting of the edges of the upper plate and the lower plate, and then achieving the connection between the upper plate and the lower plate.

[0027] Combine Figure 1 、 Figure 2 The translation frame 11 includes a product carrier plate 111 and a bottom slide 112. A vertical plate 113 is connected between the product carrier plate and the bottom slide. A slider 114 is provided at the bottom of the bottom slide. The slider cooperates with a slide rail 115, and the slide rail is mounted on the equipment frame 30. The screw rod 12 of the screw rod mechanism is passed through the guide frame 13. The translation frame 11 semi-surrounds the guide frame. The guide frame is hollow and is mounted on the equipment frame. The two side walls of the guide frame are provided with a strip-shaped bottom slide groove 131. The bottom slide 112 is provided with a screw rod nut connecting plate 14. The screw rod nut connecting plate is located in the guide frame and is screwed to the screw rod 12. The motor is set on the equipment frame 30 for driving the screw rod 12 to rotate. The screw rod is pivotally connected to the front and rear side walls of the guide frame 13 through bearings. The rotating screw 12 drives the screw nut to move linearly, and the screw nut drives the bottom slide 112 to move linearly along the slide rail 115. The bottom slide 112 drives the entire translation frame 11 to move linearly, and the upper plate and lower plate positioned on the translation frame move accordingly.

[0028] The product pressing mechanism includes a product pressing cylinder 15, a product pressing connecting rod 151 connected to the product pressing cylinder, and a product pressing head 152 provided on the product pressing connecting rod. The product pressing connecting rod 151 is bent.

[0029] Combine Figures 3 to 7 The push rod 22 is fixed to the push rod support 23. A pair of guide supports 24 are fixed to the push rod support. A pressing block 25 is provided between the pair of guide supports. The pressing block can be raised and lowered relative to the guide supports. The pressing block has a push rod hole 251, in which the push rod is movably fitted. A return spring 26 is provided between the pressing block and the push rod support. The push rod support 23 is connected to the piston rod of the push rod driving cylinder 221. Driven by the push rod driving cylinder 221, the push rod support 23 moves toward the edge of the upper plate / lower plate. The pressing block 25 first contacts the upper plate / lower plate. The push rod driving cylinder 221 continues to drive the push rod support 23 to move. The pressing block 25 moves relative to the pair of guide supports 24. The push rod 22 extends out of the push rod hole 251, pressing the upper plate / lower plate, and pushing the pressed portions of the upper plate and lower plate into the rivet hole 210 of the rivet rod.

[0030] The guide support 24 defines a guide groove 241 and a bolt clearance groove 242. A guide block 27 fits within the guide groove, and a bolt 28 engages within the bolt clearance groove, passes through the guide block, and connects to the push block 25. Driven by the push rod drive cylinder 221, the push rod support 23 moves toward the edge of the upper / lower plate. The push block 25 first contacts the upper / lower plate. The push rod drive cylinder 221 then drives the push rod support 23 to move. The push block 25 moves relative to the pair of guide supports 24, the guide block 27 moves along the guide groove 241, and the bolt 28 moves along the bolt clearance groove 242. The push rod 22 extends from the push rod hole 251, pressing the upper / lower plate, and inserting the pressed portions of the upper and lower plates into the rivet holes 210 of the rivet rod.

[0031] refer to Figure 1 、 Figure 2 Because the plastic deformation direction of the material at the riveted joint between the upper and lower plates of the roller bracket is required to be different, the plastic deformation direction of the material at the riveted joint between the left edges of the upper and lower plates is upward, while the plastic deformation direction of the material at the riveted joint between the right edges of the upper and lower plates is downward. Therefore, the riveting rod 21 on the left is located above the corresponding push rod 22, and the riveting rod 21 on the right is located below the corresponding push rod 22. Each riveting rod 21 is equipped with a corresponding riveting rod driving cylinder 211, and each push rod 22 is equipped with a corresponding push rod driving cylinder 221. The push rod driving cylinder 221 and the riveting rod driving cylinder 211 located above are mounted on the gantry 31, which is mounted on the equipment frame 30. The push rod driving cylinder 221 and the riveting rod driving cylinder 211 located below are mounted on the bottom surface of the equipment frame.

[0032] The above content is only a preferred embodiment of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there may be changes in the specific implementation method and application scope. The content of this specification should not be understood as limiting the present invention.

Claims

1. A large printer roller bracket riveting device, comprising a product positioning and conveying mechanism (10) and a product riveting mechanism (20), wherein the product positioning and conveying mechanism comprises a screw mechanism, a translation frame (11) connected to a screw nut of the screw mechanism, a positioning column provided on the translation frame, and a product pressing mechanism, characterized in that: The product riveting mechanism (20) comprises a riveting rod (21) and a push rod (22) arranged opposite to each other in an upper and lower direction. A riveting hole (210) is provided on the end surface of the riveting rod and the push rod. The inner diameter of the riveting hole is larger than the outer diameter of the push rod. The riveting rod is connected to a riveting rod driving cylinder (211), and the push rod is connected to a push rod driving cylinder (221). The riveting rod and the push rod are located beside the product positioning and conveying mechanism (10).

2. The large printer roller bracket riveting device according to claim 1, characterized in that: The translation frame (11) includes a product carrier plate (111) and a bottom slide plate (112), a vertical plate (113) is connected between the product carrier plate and the bottom slide plate, a slider (114) is provided at the bottom of the bottom slide plate, the slider cooperates with a slide rail (115), and the slide rail is installed on the equipment frame (30); the screw rod (12) of the screw rod mechanism is passed through the guide frame (13), the translation frame (11) semi-surrounds the guide frame, the guide frame is hollow, and the guide frame is installed on the equipment frame, and strip-shaped bottom slide plate giving grooves (131) are provided on both side walls of the guide frame, and a screw rod nut connecting plate (14) is provided on the bottom slide plate (112), and the screw rod nut connecting plate is located in the guide frame and is screwed to the screw rod (12).

3. The large printer roller bracket riveting device according to claim 1, characterized in that: The product pressing mechanism comprises a product pressing cylinder (15), a product pressing connecting rod (151) connected to the product pressing cylinder, and a product pressing head (152) arranged on the product pressing connecting rod.

4. The large printer roller bracket riveting device according to claim 1, characterized in that: A push rod (22) is fixed on a push rod support (23), a pair of guide supports (24) are fixed on the push rod support, a push block (25) is provided between the pair of guide supports, the push block can be raised and lowered relative to the guide supports, a push rod hole (251) is provided in the push block, the push rod is movably fitted in the push rod hole, and a return spring (26) is provided between the push block and the push rod support.

5. The large printer roller bracket riveting device according to claim 4, characterized in that: A guide groove (241) and a bolt clearance groove (242) are provided on the guide support (24); a guide block (27) is matched in the guide groove; a bolt (28) is matched in the bolt clearance groove, passes through the guide block, and is connected to the top pressure block (25).

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