Printer cutter device

Abstract

The utility model relates to a printer cutter device which comprises an L-shaped inner frame which is fixed on a printing device and walks synchronously with the printing device, a guide sleeve which is fixed at the lower end of the inner frame, a cutter rest and a cutter which can move up and down in the guide sleeve, and a driving device which is fixed at the upper end of the inner frame and drives the cutter rest and the cutter to move up and down, the cutter is a single-blade cutter, is arranged on the outer side of the cutter rest and is detachably connected with the cutter rest, an outer frame fixed to the inner frame is arranged on the outer side of the cutter, a blade of the cutter faces the connecting direction of the inner frame and the outer frame, and a safe protection cavity is formed for the cutter through the inner frame and the outer frame. And a stable cutting device is formed in the cavity through a guide sleeve and a knife rest.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal transfer printing, in particular to the technical field of a printer tool device for improving the cutting of transfer films. Background Art

[0002] Thermal transfer technology is a process that transfers a pattern or text from a transfer film to a target material through heat and pressure. PVC (polyvinyl chloride) transfer film is widely used for surface decoration of various materials such as textiles and plastics due to its excellent flexibility and transparency.

[0003] PVC transfer film is supplied in rolls. After printing the design or text onto the film using a printer, it is cut as needed. Because this is a continuous process, cutting quality not only affects the transfer effect but also the print quality of the subsequent PVC transfer film. For example, if the cutter is not sharp enough, it can easily cause bulging after cutting, affecting subsequent printing results.

[0004] Existing printer cutting systems primarily focus on paper cutting, placing greater emphasis on safety and stability. However, PVC, while relatively flexible, places higher demands on the sharpness of the cutting tool, requiring regular replacement. Therefore, thermal transfer printers need to maintain stable cutting performance while also requiring easily replaceable cutting tools. Utility Model Content

[0005] In summary, the present invention addresses the deficiencies of the prior art and proposes a printer cutter device, which aims to provide a stable and sharp cutting tool while improving its replacement convenience.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A printer tool device comprises an L-shaped inner frame fixed to a printing device and moving synchronously with the printing device, a guide sleeve fixed to the lower end of the inner frame, a tool holder and a tool movable up and down within the guide sleeve, and a drive device fixed to the upper end of the inner frame and driving the tool holder and the tool to move up and down;

[0008] The tool is a single-edged tool, which is arranged on the outside of the tool holder and is easily detachably connected to the tool holder. The outside of the tool is provided with an outer frame fixed to the inner frame, and the blade of the tool faces the connection direction between the inner frame and the outer frame.

[0009] Compared to existing technologies, this design uses an inner and outer frame to create a safe protective cavity for the cutting tool. Within this cavity, a guide sleeve and tool holder form a stable cutting device. Furthermore, the cutting tool is positioned outside the tool holder, allowing for tool replacement by simply removing the outer frame.

[0010] In a preferred embodiment, the driving device is a solenoid valve.

[0011] In some embodiments, a fixed spacer is provided between the solenoid valve and the inner frame, and the distance of the solenoid valve can be adjusted by the thickness of the fixed spacer.

[0012] In some embodiments, the inner frame is disposed outside the printing device.

[0013] In a preferred embodiment, the guide sleeve is a concave structure that is open outward, which facilitates the disassembly and assembly of the tool holder.

[0014] In a preferred embodiment, the tool holder is provided with a positioning protrusion on the opposite side of the blade of the tool, and the positioning protrusion plays a role in fixing the tool when the tool is working.

[0015] In a preferred embodiment, the cutter is arranged obliquely from top to bottom toward the outside.

[0016] In a preferred embodiment, the inclination angle of the tool toward the outside is 5 to 7 degrees.

[0017] In a preferred embodiment, the upper end of the tool is tilted forward toward the working direction.

[0018] In a preferred embodiment, the tool is tilted forward in the working direction at an angle of 18 to 20 degrees. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of a printer used in a printer tool device in this case;

[0020] Figure 2 It is a top view of a printer used in a printer tool device in this case;

[0021] Figure 3 yes Figure 2 A partial enlarged view of the middle part;

[0022] Figure 4 It is an overall schematic diagram of a printer tool device in this case;

[0023] Figure 5 This is an exploded view of a printer tool device in this case;

[0024] Figure 6 This is a front view of the travel direction of a printer tool device in this case;

[0025] Figure 7 This is a side view of the travel direction of a printer tool device in this case. DETAILED DESCRIPTION

[0026] The following examples further illustrate the features of the present invention and other related features to facilitate understanding by those skilled in the art:

[0027] The present invention will be described in further detail below with reference to the accompanying drawings. Identical components are denoted by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings, and the terms "bottom," "top," "inner," and "outer" refer to directions toward or away from the geometric center of a particular component, respectively.

[0028] Please refer to Figures 1 to 3 In this case, a printer cutting device 100 is used in a thermal transfer printer for cutting PVC transfer film. The accompanying drawings show a printer in which this printer cutting device 100 is used. The printing mechanism 200, which is a reciprocating device used for printing, is essential for the printer and will not be described in detail.

[0029] This design utilizes the existing movement of the printing device 200 to synchronize the movement of the printer cutter assembly 100 with the printing device 200. During operation, after the PVC transfer film is printed by the printing device 200, it is pushed outward. At this point, the printing device 200 can stop printing, and the cutter assembly 100 can begin cutting the printed PVC transfer film. For ease of illustration, the inside and outside are labeled in the figures, with the outside primarily referring to the user-operated direction.

[0030] Please refer to Figures 3 to 5 In this case, a printer tool device 100 includes an L-shaped inner frame 110 fixed to a printing device 200 and moving synchronously with the printing device 200. One side of the L-shape is fixed to the printing device 200, and the other side serves as a safety protection at the front end of the working direction of the tool device 100.

[0031] A guide sleeve 120 is fixed to the lower end of the inner frame 110, and the tool holder 130 and the tool 140 move up and down in the guide sleeve 120. In this way, the guide sleeve 120 can limit the tool holder 130 to prevent it from being displaced during operation. As a drive for its up and down movement, a driving device 150 is fixed to the upper end of the inner frame 110. Preferably, the driving device 150 is a solenoid valve. When the solenoid valve is selected as the driving device 150, since the solenoid valve is a standard part, in order to enable it to cooperate with the guide sleeve 120, a fixed spacer 160 is provided between the solenoid valve and the inner frame 110, and the distance between the solenoid valve and the tool holder 130 can be adjusted. The solenoid valve and the tool holder 130 are fixedly connected, and the drive shaft of the solenoid valve and the tool holder 130 can be connected by bolts, which is convenient for disassembly and maintenance.

[0032] Furthermore, the cutter 140 is a single-edged cutter, mounted outside the cutter holder 130 and easily removably connected thereto, such as by bolts. The cutter 140 is provided with an outer frame 170 fixed to the inner frame 110. The working direction of the cutter 140, i.e., the orientation of the cutting edge, is the direction in which the inner and outer frames 110 and 170 are connected. The protective cavity formed by the inner and outer frames 110 and 170 provides safety protection for the cutting edge.

[0033] Preferably, the guide sleeve 120 is a concave structure that is open outward, which facilitates the disassembly and assembly of the tool holder 130. The tool holder 130 is provided with a positioning protrusion 131 on the side opposite to the blade of the tool 140, that is, on the side opposite to the working direction. When the tool 140 is working, the positioning protrusion 131 plays a role in fixing the tool.

[0034] The following is a detailed description of the tool 140, please refer to Figure 6 and Figure 7 The cutter 140 is tilted downward from top to bottom toward the outside, with a preferred tilt angle R1 of 5 to 7 degrees. This tilt allows the cutter 140 to be aligned with the concave guide sleeve 120, which is open on the outside. During operation, the cutter 140 applies force inward, while the concave guide sleeve 120 is positioned on the inside, forming a self-locking and stable structure.

[0035] The tool is in the working direction, that is Figure 7 When the cutting edge is in the forward position, the upper end is tilted toward the working direction. The tilt angle R2 is 18-20 degrees. Because PVC transfer film has a certain degree of flexibility, the forward tilt setting can reduce resistance during cutting, making the cutting process smoother and reducing bulging of the PVC transfer film.

[0036] As mentioned above, this case protects a printer tool device, and all technical solutions that are identical or similar to this case should be deemed to fall within the scope of protection of this case.

Claims

1. A printer tool device, characterized in that: The invention comprises an L-shaped inner frame (110) fixed to a printing device (200) and moving synchronously with the printing device (200), a guide sleeve (120) fixed to the lower end of the inner frame (110), a tool holder (130) and a tool (140) movable up and down in the guide sleeve (120), and a driving device (150) fixed to the upper end of the inner frame (110) and driving the tool holder (130) and the tool (140) to move up and down; The tool (140) is a single-edged tool, which is arranged on the outside of the tool holder (130) and is easily detachably connected to the tool holder (130). An outer frame (170) fixed to the inner frame (110) is provided on the outside of the tool (140), and the blade of the tool (140) faces the connection direction between the inner frame (110) and the outer frame (170).

2. A printer tool device according to claim 1, characterized in that: The driving device (150) is a solenoid valve.

3. A printer tool device according to claim 2, characterized in that: A fixed cushion block (160) is provided between the solenoid valve and the inner frame (110).

4. A printer tool device according to claim 1, characterized in that: The inner frame (110) is arranged outside the printing device (200).

5. A printer tool device as claimed in claim 4, characterized in that: The guide sleeve (120) is a concave structure that is open outward.

6. A printer tool device according to claim 5, characterized in that: The tool holder (130) is provided with a positioning protrusion (131) on the opposite side of the blade of the tool (140).

7. A printer tool device as claimed in claim 1, characterized in that The cutter (140) is arranged to be inclined from top to bottom and toward the outside.

8. A printer tool device according to claim 7, characterized in that: The outward inclination angle of the tool (140) is 5 to 7 degrees.

9. A printer tool device according to claim 1, characterized in that: The upper end of the tool (140) is arranged to be inclined forward toward the working direction.

10. A printer tool device according to claim 9, characterized in that: The tool (140) is tilted forward in the working direction at an angle of 18 to 20 degrees.

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