Gauze frame

Abstract

The simple configuration improves the ease of adjusting tension. [Solution] A frame that fixes the mesh by a rectangular main frame (frame) 20 composed of four sides having a U-shape with an open outer side, and holding parts 10 provided corresponding to each of the four sides, wherein the holding part 10 is provided so as to be slidable inward and outward relative to the main frame (frame) 20 while in contact with the lower surface of the upper part of the U-shape of the main frame (frame) 20, and comprises a sliding part 11 having a groove 11a at its upper part that is aligned with the long axis of the main frame (frame) 20, a holding shaft 12 disposed inside the groove 11a, and a fixing member 13 that positions and fixes the sliding part 11 so as to fix the mesh sandwiched between the sliding part 11 and the holding shaft 12.

Description

Technical Field

[0001] The present invention relates to a yarn frame that has a simple structure and improves the workability of adjusting tension.

Background Art

[0002] Generally, a heat-sensitive yarn is attached to a yarn frame by applying a predetermined yarn tension, and while relatively moving the attached yarn frame and a thermal head, a screen plate is manufactured by heating and perforating the yarn with the thermal head.

[0003] At this time, the heat-sensitive yarn needs to be uniformly stretched on the yarn frame with high tension.

[0004] Patent Document 1 discloses a technique related to a yarn tensioning frame in which a main body frame is formed in a rectangle, and for each of the four sides of the rectangle, an edge holding body that holds the peripheral edge of the yarn in the stretching groove of the main body frame is pulled toward the outer peripheral side by a bolt to adjust the tension, thereby stretching the yarn.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] However, in the technique of Patent Document 1, it is necessary to push a fixing member into a holding groove member to rotate and fix it in order to hold the yarn, the fixing work is not easy, and the work of adjusting the tension is time-consuming. In addition, there is a problem that the number of parts for adjustment increases and the manufacturing cost rises.

[0007] The present invention has been made in view of the above problems, and provides a yarn frame that has a simple structure and improves the workability of adjusting tension.

Means for Solving the Problems

[0008] To achieve the above objective, the first feature of the mesh frame according to the present invention is: A frame for fixing the mesh by a rectangular frame composed of four sides having a U-shape with an open outer side, and holding parts provided corresponding to each of the four sides, The aforementioned retaining part is A sliding portion is provided that is in contact with the lower surface of the upper part of the U-shape of the frame and is slidable inward and outward relative to the frame, and has a groove at its upper part that is aligned with the long axis of the frame, A retaining shaft positioned inside the groove, A fixing member is provided to position and fix the slide portion so as to fix the mesh sandwiched between the slide portion and the holding shaft, It is characterized by having the following features. [Effects of the Invention]

[0009] The mesh frame according to the present invention has a simple structure and improves the workability of adjusting the tension. [Brief explanation of the drawing]

[0010] [Figure 1] This is an overall diagram of a mesh frame, which is one embodiment of the present invention. [Figure 2] This is a magnified view of a mesh frame, which is one embodiment of the present invention. [Figure 3] This is a magnified view of a mesh frame, which is one embodiment of the present invention. [Figure 4] This is a magnified view of a mesh frame, which is one embodiment of the present invention. [Figure 5] This is a cross-sectional view showing a retaining shaft positioned in a groove provided in the sliding portion of a mesh frame, which is one embodiment of the present invention. [Figure 6] This is an explanatory diagram illustrating a method for adjusting the tension of a heat-sensitive mesh using a mesh frame, which is one embodiment of the present invention. [Figure 7] This is an explanatory diagram illustrating a method for adjusting the tension of a heat-sensitive mesh using a mesh frame, which is one embodiment of the present invention. [Figure 8] It is an explanatory drawing explaining a method for adjusting the tension of a heat-sensitive yarn using a yarn frame which is an embodiment of the present invention. [Figure 9] It is a figure showing a modification example of a yarn frame which is an embodiment of the present invention.

Embodiments for Carrying Out the Invention

[0011] Hereinafter, embodiments of the present invention will be described with reference to the drawings. The same or equivalent parts and components are given the same or equivalent reference numerals throughout the drawings. However, it should be noted that the drawings are schematic and different from the actual ones. Also, there are portions where the dimensional relationships and ratios are different between the drawings.

[0012] Also, the embodiments shown below are examples of devices for embodying the technical idea of this invention, and the technical idea of this invention does not specify the arrangement of each component part as follows. The technical idea of this invention can be variously modified within the scope of the claims.

[0013] FIG. 1 is an overall configuration diagram of a yarn frame 1 which is an embodiment of the present invention, and FIGS. 2 to 4 are partial enlarged views of the yarn frame 1 which is an embodiment of the present invention.

[0014] As shown in FIGS. 1 to 4, the main body frame (frame) 20 of the yarn frame 1 is formed in a rectangular shape using a metal material such as aluminum which is rigid and has good heat conductivity. Each of the four sides of the main body frame 20 is formed in a U-shape on the outside. A holding portion 10 for stretching and positioning and holding a heat-sensitive yarn is provided on each side of the main body frame 20.

[0015] Although not shown, the heat-sensitive yarn is formed in a rectangular shape corresponding to a sheet of, for example, A3 size or the like in a state where a heat-melting film is adhered to a yarn having a plurality of meshes by knitting warp and weft.

[0016] Then, using the holding part 10, a predetermined yarn tension is applied so that the thermally fusible film side of the heat-sensitive yarn faces the thermal head (not shown), and the heat-sensitive yarn is attached onto the yarn frame 1. Then, the thermal head is selectively heated and driven according to image data, and a perforated image by heat perforation is engraved on the thermally fusible film of the heat-sensitive yarn.

[0017] In the figures shown in FIGS. 2 to 4, the holding part 10 provided at the position of the right side of the rectangular main body frame 20 is shown. The holding parts 10 provided at the positions of the left side, top side, and bottom side of the rectangular main body frame 20 have the same structure as the holding part 10 provided at the position of the right side of the main body frame 20, and thus the description thereof is omitted.

[0018] The holding part 10 has a slide part 11 which is provided so as to be slidable inside and outside the main body frame 20 with respect to the inner region 20b of the U-shape while contacting the lower surface 20a of the upper part of the U-shape of the main body frame (frame) 20. In the example shown in FIG. 2, the slide part 11 is provided so as to be slidable in the left-right direction.

[0019] Further, the slide part 11 is provided with a groove 11a along the long axis direction of the main body frame (frame) 20 at the upper part. In the example shown in FIG. 3, the groove 11a is provided along the top-bottom direction.

[0020] A holding shaft 12 is arranged inside this groove 11a. The holding shaft 12 is molded into a cylindrical shape with a diameter that fits inside the groove 11a.

[0021] In the inner region 20b of the U-shape of the main body frame (frame) 20, a fixing member 13 for positioning and fixing the slide part 11 is provided. The fixing member 13 has a bolt shape and is provided with a thread so as to engage with the slide part 11. The tip of the fixing member 13 penetrates through the main body frame 20 and is supported. The fixing member 13 is provided so as to be rotatable without moving in the left-right direction.

[0022] As shown in Figure 4, by rotating the fixing member 13 in the F direction, the sliding part 11 and the holding shaft 12 positioned in the groove 11a of the sliding part 11 slide to the left. In other words, by rotating the fixing member 13 in the F direction, it becomes possible to position the sliding part 11 in the left-right direction.

[0023] Figure 5 is a cross-sectional view showing a retaining shaft 12 positioned within a groove 11a provided in the sliding portion 11 of a mesh frame 1, which is one embodiment of the present invention.

[0024] As shown in Figure 5, the groove 11a provided in the sliding part 11 is inclined so that its bottom surface slopes downward from the outside (right side) to the inside (left side). As a result, when the holding shaft 12 moves to the right, it is sandwiched and fixed between the bottom surface 20a of the U-shaped upper part of the main frame 20 and the bottom surface of the groove 11a.

[0025] Figures 6 to 8 are explanatory diagrams illustrating a method for adjusting the tension of a heat-sensitive mesh S using a mesh frame 1, which is one embodiment of the present invention.

[0026] As shown in Figure 6, before rotating the fixing member 13, the sliding part 11 is positioned on the right side, the groove 11a of the sliding part 11 is open at the top, and the holding shaft 12 is detached from the groove 11a. In this state, the thermal mesh S is placed over the main frame 20 from above.

[0027] Next, as shown in Figure 7, the holding shaft 12 is moved downward, and the thermal mesh S is placed inside the groove 11a of the sliding part 11. As a result, the thermal mesh S is positioned inside the groove 11a of the sliding part 11 so as to enclose the holding shaft 12.

[0028] Next, as shown in Figure 8, by rotating the fixing member 13 in the F direction, the fixing member 13 moves to the left, and consequently, the sliding part 11 and the holding shaft 12 positioned in the groove 11a of the sliding part 11 slide to the left while wrapping the thermal mesh S around them.

[0029] At this time, the holding shaft 12, which has the thermal mesh S wrapped around it, is pulled by the thermal mesh S and moves to the right within the groove 11a. As described above, the groove 11a provided in the sliding part 11 is inclined so that its bottom surface slopes downward from the outside (right side) to the inside (left side). Therefore, when the holding shaft 12 moves to the right, the thermal mesh S is fixed in place by being sandwiched between the lower surface 20a of the U-shaped upper part of the main frame 20 and the bottom surface of the groove 11a.

[0030] As described above, the holding part 10 is provided so as to be able to slide inward and outward relative to the main frame 20 while in contact with the lower surface of the upper part of the U-shape of the main frame 20, and has a sliding part 11 with a groove 11a at the top that is aligned with the long axis of the main frame 20, a holding shaft 12 positioned inside the groove 11a, and a fixing member 13 that positions and fixes the sliding part 11 so as to fix the heat-sensitive mesh S sandwiched between the sliding part 11 and the holding shaft 12. Therefore, by simply rotating the fixing member 13, the sliding part 11 can be slid to adjust the tension of the heat-sensitive mesh S, thus improving the workability of adjusting the tension of the heat-sensitive mesh S with a simple configuration.

[0031] As shown in Figure 9, a coil spring 16 may be provided between the main frame 20 and the sliding part 11, around the fixing member 13.

[0032] In the example shown in Figure 9, the fixing member 13 has a bolt shape and is screwed into a nut 14 provided inside the main frame 20.

[0033] By rotating the fixing member 13 in the F direction, the fixing member 13 moves to the left. The sliding part 11 does not have screw grooves, and as the fixing member 13 moves to the left, the sliding part 11 and the holding shaft 12 positioned in the groove 11a of the sliding part 11 are pushed against the head portion of the fixing member 13, causing it to slide to the left while the thermal mesh S is wrapped around it.

[0034] Then, by rotating the fixing member 13 in the opposite direction to the F direction, the fixing member 13 moves to the right. Consequently, the biasing force of the coil spring 16 causes the sliding part 11 to slide to the right along the fixing member 13.

[0035] In this way, by simply rotating the fixing member 13, the sliding part 11 can be slid to adjust the tension of the heat-sensitive cloth S. Therefore, the workability of adjusting the tension of the heat-sensitive cloth S can be improved with a simple configuration. (Note) This application discloses the following invention:

[0036] (Note 1) A frame for fixing the mesh by a rectangular frame composed of four sides having a U-shape with an open outer side, and holding parts provided corresponding to each of the four sides, The aforementioned retaining part is A sliding portion is provided that is in contact with the lower surface of the upper part of the U-shape of the frame and is slidable inward and outward relative to the frame, and has a groove at its upper part that is aligned with the long axis of the frame, A retaining shaft positioned inside the groove, A fixing member is provided to position and fix the slide portion so as to fix the mesh sandwiched between the slide portion and the holding shaft, A frame characterized by having the following features.

[0037] This allows the tension of the mesh to be adjusted and fixed by simply rotating the fixing member, thereby improving the workability of adjusting the tension of the mesh with a simple configuration. [Explanation of Symbols]

[0038] 1. Gauze frame 10 Holding part 11. Slide section 11a Groove 12 Holding axis 13 Fixing member 14 nuts 16 Coil springs 20 Main frame 20a Bottom side 20b Internal area S Heat-sensitive gauze

Claims

[Claim 1] A frame for fixing the mesh by a rectangular frame composed of four sides having a U-shape with an open outer side, and holding parts provided corresponding to each of the four sides, The aforementioned retaining part is A sliding portion is provided that is in contact with the lower surface of the upper part of the U-shape of the frame and is slidable inward and outward relative to the frame, and has a groove at its upper part that is aligned with the long axis of the frame, A retaining shaft positioned inside the groove, A fixing member is provided to position and fix the slide portion so as to fix the mesh sandwiched between the slide portion and the holding shaft, A frame characterized by having the following features.

Images