Reverse frosted printing device for packaging box

Abstract

The utility model discloses a packaging box reverse frosted printing device, which relates to the technical field of paper printing and comprises a machine body, two symmetrically arranged printing boxes are mounted at the top of one side of the machine body, two symmetrically arranged mounting rods are fixed at the top of the other side of the machine body, and a height-adjustable lifting frame is mounted between the two mounting rods. The mounting rod is a threaded rod, a first nut is screwed on the mounting rod, lug plates are fixed to the two sides of the lifting frame, the lug plates are located above the first nut, through holes are vertically formed in the lug plates, the upper end of the mounting rod extends out of the through holes, springs are arranged between the lug plates and the first nut, the mounting rod is sleeved with the springs, and the lifting frame is provided with two protection pieces with the distance capable of being adjusted. By rotating the two first nuts, lifting of the protection pieces is achieved, paper of different thicknesses is fixed, by rotating the two second nuts, the distance between the two protection pieces is adjusted, paper of different widths is fixed, and practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging box printing, in particular to a packaging box reverse frosting printing device. Background Art

[0002] In the prior art, it was found through search that, for example, a Chinese patent (application number: 202022087237.1) discloses a reverse frosting printing device for a packaging box. Through the setting of a fixing mechanism, when printing the packaging box, the paper will not be offset during the printing process due to being too large, resulting in printing errors and unnecessary losses. The paper can be accurately fixed by a fixed block, and the height of the movable plate can be adjusted to adapt to various thicknesses of paper.

[0003] However, the distance between the two protective covers in the above patent is not adjustable, so it cannot cope with papers of different widths and has low practicality. Therefore, improvements are needed. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a reverse frosting printing device for a packaging box, which solves the problems mentioned in the background technology.

[0005] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] A packaging box reverse frosting printing device comprises a machine body, two symmetrically arranged printing boxes are installed on the top of one side of the machine body, two symmetrically arranged mounting rods are fixed on the top of a workbench on the other side of the machine body, a height-adjustable lifting frame is installed between the two mounting rods, and two protective parts with adjustable spacing are installed on the lifting frame.

[0007] In order to fix paper of different thicknesses, the mounting rod is a threaded rod, a nut is screwed on the mounting rod, ear plates are fixed on both sides of the lifting frame, the ear plates are located above the nut, a through hole is vertically opened on the ear plates, the upper end of the mounting rod extends out through the through hole, a spring is arranged between the ear plate and the nut, and the spring is sleeved on the mounting rod.

[0008] Specifically, the lifting frame is arranged in a ring rod shape and has a notch at the bottom. The two protection members are installed on the bottom rod of the lifting frame and are located at both sides of the notch.

[0009] In order to adjust the distance between the two protective members, a plug hole is provided in the middle of the protective member for inserting it into the bottom rod of the lifting frame. The surface of the bottom rod of the lifting frame is provided with an external thread. A nut 2 is provided on both sides of the protective member, and the nut 2 is screwed on the bottom rod of the lifting frame.

[0010] In order to better protect the paper, the protective member is a cylindrical rubber airbag.

[0011] Compared with the prior art, the utility model has the following beneficial effects: by rotating two nuts one, the protective member can be raised and lowered to fix papers of different thicknesses; and by rotating two nuts two, the distance between the two protective members can be adjusted to fix papers of different widths, thereby improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is the front view of the utility model;

[0013] Figure 2 The local three-dimensional Figure 1 ;

[0014] Figure 3 The local three-dimensional Figure 2 ;

[0015] Figure 4 It is a partial exploded view of the utility model;

[0016] Figure 5 It is a sectional view of the side view of the lifting frame of the utility model.

[0017] Figure numerals: 1, machine body; 2, printing box; 3, mounting rod; 4, lifting frame; 5, protective part; 6, nut one; 7, ear plate; 8, spring; 9, nut two. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0019] See also Figure 1-5 The utility model provides a reverse frosting printing device for a packaging box, including a body 1, and two symmetrically arranged printing boxes 2 are installed on the top of one side of the body 1. The above structures are all prior arts. The specific working principle can be referred to the Chinese patent (application number: 202022087237.1), which will not be repeated in the utility model. Two symmetrically arranged mounting rods 3 are fixed on the top of the workbench on the other side of the body 1, and a height-adjustable lifting frame 4 is installed between the two mounting rods 3, and two protective members 5 with adjustable spacing are installed on the lifting frame 4.

[0020] In order to fix papers of different thicknesses, the mounting rod 3 is a threaded rod, a nut 6 is screwed on the mounting rod 3, ear plates 7 are fixed on both sides of the lifting frame 4, the ear plates 7 are located above the nut 6, a through hole is vertically opened on the ear plates 7, the upper end of the mounting rod 3 extends out through the through hole, a spring 8 is arranged between the ear plate 7 and the nut 6, and the spring 8 is sleeved on the mounting rod 3.

[0021] Specifically, the lifting frame 4 is arranged in a ring rod shape and has a notch at the bottom. The two protection members 5 are installed on the bottom rod of the lifting frame 4 and are located at both sides of the notch.

[0022] In order to adjust the distance between the two protective members 5, a plug hole is opened in the middle of the protective member 5 so that it can be inserted into the bottom rod of the lifting frame 4. The surface of the bottom rod of the lifting frame 4 is provided with an external thread. A nut 9 is provided on both sides of the protective member 5, and the nut 9 is screwed on the bottom rod of the lifting frame 4.

[0023] In order to better protect the paper, the protective member 5 is a cylindrical rubber airbag, which makes the protective member 5 have a certain elasticity and is in linear contact with the paper, with a smaller contact area, which better protects the paper and prevents the paper from being pressed out.

[0024] The working principle of the utility model is described in detail below: when the height of the protective member 5 needs to be adjusted, the nut 6 is rotated up and down to make it move up and down along the mounting rod 3. When the nut 6 moves upward, the lifting frame 4 is pushed upward by the spring 8 and the ear plate 7. When the nut 6 moves downward, the lifting frame 4 is moved downward by the spring 8 and the self-gravity of the lifting frame 4, thereby realizing the height adjustment of the protective member 5. When in use, paper is placed on the workbench on one side of the body 1 so that the protective member 5 is pressed on the paper. When the spacing between the two protective members 5 needs to be adjusted, the nuts 2 9 on both sides of the protective member 5 are rotated to leave a spacing between them and the two ends of the protective member 5, so that the protective member 5 can slide along the bottom rod of the lifting frame 4. After the spacing between the two protective members 5 is adjusted, the nuts 2 9 on both sides of the protective member 5 are relatively rotated to make them move relatively until the two nuts 2 9 are clamped at the two ends of the protective member 5 to achieve the fixation of the protective member 5.

[0025] Finally, the most important contribution of the utility model is that the protective member 5 can be raised and lowered by rotating the two nuts 1 6. Papers of different thicknesses can be fixed by rotating the two nuts 1 6, which is more convenient and quick. The spacing between the two protective members 5 can be adjusted by rotating the two nuts 2 9, and papers of different widths can be fixed, thereby improving practicality.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A reverse frosting printing device for a packaging box, comprising a body, with two symmetrically arranged printing boxes mounted on the top of one side of the body, characterized in that: Two symmetrically arranged mounting rods are fixed on the top of the workbench on the other side of the machine body, a height-adjustable lifting frame is installed between the two mounting rods, and two spacing-adjustable protective members are installed on the lifting frame.

2. A packaging box reverse frosting printing device according to claim 1, characterized in that: The mounting rod is a threaded rod, and a nut is screwed on the mounting rod. Ear plates are fixed on both sides of the lifting frame, and the ear plates are located above the nut. A through hole is vertically opened on the ear plates, and the upper end of the mounting rod extends out through the through hole. A spring is arranged between the ear plate and the nut, and the spring is sleeved on the mounting rod.

3. A packaging box reverse frosting printing device according to claim 2, characterized in that: The lifting frame is arranged in a ring rod shape and has a notch at the bottom. Two protection members are installed on the bottom rod of the lifting frame and are located at both sides of the notch.

4. A packaging box reverse frosting printing device according to claim 3, characterized in that: The middle part of the protection piece is provided with an insertion hole for inserting it into the bottom rod of the lifting frame, the surface of the bottom rod of the lifting frame is provided with an external thread, and a nut 2 is provided on both sides of the protection piece, and the nut 2 is screwed on the bottom rod of the lifting frame.

5. A packaging box reverse frosting printing device according to claim 4, characterized in that: The protective member is a cylindrical rubber airbag.

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