Cutter distance changing device applied to digital die-cutting machine

Abstract

The utility model discloses a cutter variable pitch device applied to a digital die-cutting machine, which comprises a frame and a plurality of cutters, the cutters are slidably mounted on a transverse guide rail, the transverse guide rail is mounted on the frame, an adjusting shaft is arranged in the frame, a first motor is mounted on the outer wall of the frame, and a second motor is mounted on the outer wall of the frame. An output shaft of the first motor is in transmission connection with the adjusting shaft, spiral cam grooves corresponding to the cutters one to one are formed in the outer wall of the adjusting shaft, one or more cam grooves located on the left side of the adjusting shaft and one or more cam grooves located on the right side of the adjusting shaft are arranged in a one-to-one mirror symmetry mode, and the cutters are connected with inserting rods respectively. And a roller arranged in the cam groove is arranged at the end part of the inserting rod. The timely and rapid variable-pitch adjustment between the cutters can be realized, and the consistent interval between the cutters can be ensured.

Description

Technical Field

[0001] The utility model relates to the field of digital die cutting machines, in particular to a tool pitch changing device applied to digital die cutting machines. Background Art

[0002] Digitally printed labels, trademark stickers, pictures and other digital printed products. Independent digital printed products such as labels are arranged in a certain interval matrix on the entire printed paper. They need to be die-cut by a digital die-cutting machine to cut out independent labels, which is convenient for independent retrieval.

[0003] The die cutter in the digital die-cutting machine is the main component used to cut the entire sheet of printed paper. The patterns and specifications printed by the digital printing machine are often changed, so the die-cutting tool needs to be adjusted according to the specifications of the independent pattern. The traditional method is to install all the cutters on a guide rail for sliding adjustment, and then lock and fix them with locking bolts after adjustment. This requires precise measurement and calculation, as well as sliding adjustment of each cutter. The operation is cumbersome and very time-consuming, which greatly affects the production efficiency. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a tool pitch changing device applied to a digital die cutting machine, the purpose of which is to enable the tool pitch changing adjustment to be timely and fast, and to ensure that the intervals between the tools remain consistent.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tool pitch changing device used in a digital die-cutting machine, comprising a frame and a tool, wherein the tool is a plurality of tools and is slidably mounted on a transverse guide rail, the transverse guide rail is mounted on the frame, an adjusting shaft is arranged in the frame, a first motor is mounted on the outer wall of the frame, the output shaft of the first motor is drivingly connected to the adjusting shaft, a cam groove corresponding to the tool and in a spiral shape is arranged on the outer wall of the adjusting shaft, one or more cam grooves on the left side of the adjusting shaft are mirror-symmetrically arranged with one or more cam groove structures on the right side of the adjusting shaft, and a virtual horizontal line running through all the cam grooves has equidistant points between intersections with the bisector of the cam groove, and a plurality of the tools are respectively connected with an insertion rod, and a roller placed in the cam groove is mounted on the end of the insertion rod.

[0006] The cam grooves are arranged horizontally and their heads and tails are on their respective horizontal arrangement lines. The cam grooves arranged on the left or right side of the adjusting shaft toward the middle of the adjusting shaft are shortened one by one in proportion, and the lengths of the cam grooves arranged on the left or right side are designed according to the calculated ratio. The intervals between the head ends of the cam grooves are the same, the intervals between the tail ends of the cam grooves are the same, and the intervals between the head ends of the cam grooves are greater than the intervals between the tail ends of the cam grooves.

[0007] The tool includes a slide seat sliding along a transverse guide rail, a second motor is installed on the slide seat, a vertical guide rail is installed on the slide seat, a slider sliding along the vertical guide rail is provided on the vertical guide rail, a cutter is installed on the slider, a nut sleeve is provided on the slider, a screw rod is installed on the output shaft of the second motor, and the screw rod is threadedly connected to the nut sleeve.

[0008] The frame is installed on a sliding seat of a linear motion module, which includes a linear track, a sliding seat, a shell and a third motor. The third motor is installed on the shell, the linear track is installed on the outer wall of the shell, the sliding seat is installed on the linear track, and the output shaft of the third motor is connected to a screw, which is threadedly connected to the threaded hole on the sliding seat.

[0009] The beneficial effect of the utility model is that the tool moves along its own cam groove through the roller, and after the first motor drives the adjusting shaft to rotate, the cam groove will drive the respective tool to move left and right. Since one or more cam grooves located on the left side of the adjusting shaft and one or more cam groove structures located on the right side of the adjusting shaft are arranged in a mirror-symmetrical manner, and a virtual horizontal line running through all the cam grooves has equidistant points between the intersection points with the bisector of the cam groove, the tools on both sides can move along their respective cam grooves arranged in a mirror-symmetrical manner, so that the distance adjustment between the tools can be timely and quickly achieved, and the interval between the tools can be ensured to remain consistent.

[0010] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A three-dimensional diagram of a specific implementation of the utility model;

[0012] Figure 2 It is a cutaway view of a specific implementation mode of the utility model;

[0013] Figure 3 This is a diagram of the installation position of the adjustment shaft in a specific implementation mode of the utility model;

[0014] Figure 4 for Figure 2 A magnified view of middle;

[0015] Figure 5 It is a partial cross-sectional view of a specific implementation method of the utility model.

[0016] In the figure, 1 is a frame; 2 is a tool; 3 is a transverse guide rail; 4 is an adjusting shaft; 5 is a cam groove; 6 is a roller; 7 is a linear motion module; 8 is a third motor; 9 is a plunger; 10 is a first motor; 20 is a virtual horizontal line; 21 is a slide seat; 22 is a second motor; 23 is a nut sleeve; 24 is a slider; 25 is a cutter; 26 is a lead screw; and 27 is a vertical guide rail. DETAILED DESCRIPTION

[0017] The present invention is specifically described below through embodiments, which are only used to further illustrate the present invention and should not be construed as limiting the protection scope of the present invention.

[0018] like Figure 1 — Figure 5 As shown, the present embodiment discloses a tool pitch changing device applied to a digital die-cutting machine, comprising a frame 1 and a tool 2, wherein the tool 2 has eight pieces and is slidably mounted on a transverse guide rail 3, the transverse guide rail 3 being mounted on the frame 1, an adjusting shaft 4 being arranged inside the frame 1, a first motor 10 being mounted on the outer wall of the frame 1, an output shaft of the first motor 10 being connected to the adjusting shaft 4 via a worm gear structure, a cam groove 5 corresponding to the tool 2 and in a spiral shape being arranged on the outer wall of the adjusting shaft 4, the four cam grooves 5 on the left side of the adjusting shaft 4 being arranged in a mirror-symmetrical manner with the four cam grooves 5 on the right side of the adjusting shaft 4, and a virtual horizontal line 20 running through all the cam grooves 5 having an equal distance between the intersection points 30 with the bisector of the cam groove 5, and the eight tools 2 being respectively connected with an insert rod 9, at the end of which a roller 6 placed in the cam groove 5 is mounted.

[0019] The cam grooves 5 are arranged horizontally and their heads and tails are on their respective horizontal arrangement lines. The cam grooves 5 arranged on the left or right side of the adjusting shaft 4 toward the middle of the adjusting shaft 4 are shortened one by one in proportion, and the lengths of the four cam grooves 5 arranged on the left or right side are designed in a ratio of approximately 1:3:5:7. The length ratio of the cam grooves and the spiral path need to be computationally designed and adjusted in a timely manner according to the die-cutting conditions (the arrangement and specifications of independent stickers) and the number of tools. The intervals between the head ends of the cam grooves 5 are the same, the intervals between the tail ends of the cam grooves 5 are the same, and the intervals between the head ends of the cam grooves 5 are greater than the intervals between the tail ends of the cam grooves 5. This ensures that the intervals between the tools 2 remain consistent at all times and the tool 2 is driven by the cam groove 5 to quickly adjust the spacing.

[0020] The tool 2 as a component includes a slide 21 sliding along the transverse guide rail 3, a second motor 22 is installed on the slide 21, a vertical guide rail 27 is installed on the slide 21, a slider 24 sliding along the vertical guide rail 27 is provided on the vertical guide rail 27, a cutter 25 is installed on the slider 24, a nut sleeve 23 is provided on the slider 24, a screw rod 26 is installed on the output shaft of the second motor 22, the screw rod 26 is threadedly connected to the nut sleeve 23, and the second motor 22 can control the up and down position adjustment of the cutter 25. Of course, the first motor 10 and the second motor 22 are respectively controlled by the control system on the equipment, so that quick adjustment can be made according to different printing materials.

[0021] The frame 1 is installed on the sliding seat of a linear motion module 7, which includes a linear track, a sliding seat, a shell and a third motor 8. The third motor 8 is installed on the shell, the linear track is installed on the outer wall of the shell, and the sliding seat is installed on the linear track, so that the sliding seat slides on the linear track. The output shaft of the third motor 8 is connected with a screw, and the screw is threadedly connected to the threaded hole on the sliding seat. In this way, the frame 1 can be adjusted in position laterally, and the tool 2 has a wider position adjustment range, so as to adapt to printed products with larger die-cutting specifications. Of course, the third motor 8 is also controlled by the control system of the equipment.

[0022] By adopting the above technical solution, the tool 2 moves along its own cam groove 5 through the insertion roller 6. After the first motor 10 drives the adjusting shaft 4 to rotate, the cam groove 5 will drive the respective tool 2 to move left and right. Since the four cam grooves 5 located on the left side of the adjusting shaft 4 and the four cam grooves 5 located on the right side of the adjusting shaft 4 are arranged in a mirror-symmetrical structure one by one, and the lengths of the mirror-symmetrical cam grooves 5 on both sides and the spiral trajectories are equidistantly designed, the tools 2 on both sides can move along their respective cam grooves 5 arranged in a mirror-symmetrical manner, so that the distance adjustment between the tools 2 can be timely and quickly achieved, and the interval between the tools 2 can be ensured to remain consistent.

[0023] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0024] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A tool pitch changing device for a digital die cutting machine, comprising a frame and a tool, wherein the tool is a plurality of tools and is slidably mounted on a transverse guide rail, and the transverse guide rail is mounted on the frame, and is characterized in that: An adjusting shaft is arranged in the frame, and a first motor is installed on the outer wall of the frame. The output shaft of the first motor is drivingly connected to the adjusting shaft. A spiral cam groove corresponding to the tool is arranged on the outer wall of the adjusting shaft. One or more cam grooves on the left side of the adjusting shaft are mirror-symmetrically arranged with one or more cam groove structures on the right side of the adjusting shaft. A virtual horizontal line running through all the cam grooves has equidistant points between intersections with the bisector of the cam groove. An insert rod is connected to the tool, and a roller placed in the cam groove is installed on the end of the insert rod.

2. The tool pitch changing device for a digital die cutting machine according to claim 1, characterized in that: The cam grooves are arranged horizontally and their heads and tails are on their respective horizontal arrangement lines, the intervals between the head ends of the cam grooves are the same, the intervals between the tail ends of the cam grooves are the same, and the intervals between the head ends of the cam grooves are greater than the intervals between the tail ends of the cam grooves.

3. The tool pitch changing device for a digital die cutting machine according to claim 1, characterized in that: The tool includes a slide seat sliding along a transverse guide rail, a second motor is installed on the slide seat, a vertical guide rail is installed on the slide seat, a slider sliding along the vertical guide rail is provided on the vertical guide rail, a cutter is installed on the slider, a nut sleeve is provided on the slider, a screw rod is installed on the output shaft of the second motor, and the screw rod is threadedly connected to the nut sleeve.

4. The tool pitch changing device for a digital die cutting machine according to claim 1, characterized in that: The frame is installed on a sliding seat of a linear motion module, which includes a linear track, a sliding seat, a shell and a third motor. The third motor is installed on the shell, the linear track is installed on the outer wall of the shell, the sliding seat is installed on the linear track, and the output shaft of the third motor is connected to a screw, which is threadedly connected to the threaded hole on the sliding seat.

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