Screen frame mounting device

Abstract

To prevent position aberration of a screen frame relative to a printed matter with a simple structure to perform screen printing with high workability in a screen frame attachment device and a screen frame attachment frame body.SOLUTION: A screen frame attachment device 1 is used to attach a screen frame 100 which holds a screen S used for screen printing to a printed matter M. The screen frame attachment device 1 includes: a frame body 10 which holds the screen frame 100; and a fixing member 20 which sandwiches the printed matter M with the frame body 10 and is fixed to the frame body 10 by magnetic force.SELECTED DRAWING: Figure 6

Description

Technical Field

[0001] The present invention relates to a screen frame mounting device and a screen frame mounting frame body for attaching a screen frame that holds a screen used for screen printing to an object to be printed.

Background Art

[0002] Conventionally, in a screen printing apparatus, a method has been proposed in which a substrate on which screen printing is to be performed is imaged by imaging means, the position of the substrate is determined using the image data, and screen printing is automatically performed (see, for example, Patent Document 1).

[0003] By the way, the plate making of the screen used for screen printing is performed, for example, by forming a printed portion by thermal perforation using a thermal head, or by forming a printed portion by curing a chemical agent outside the printed portion of a mesh-like screen.

[0004] After the plate making of the screen, the user, for example, attaches the screen to a screen frame and applies ink to an object to be printed such as a T-shirt through the holes of the screen using a squeegee.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] When the screen frame is attached to a printing apparatus and screen printing is automatically performed as described above, a large printing apparatus is required.

[0007] On the other hand, when manually performing screen printing using a squeegee, for example, when the object to be printed and the screen frame are not misaligned, it is conceivable to perform squeegeeing with one hand while holding the screen frame with the other hand. However, in this case, since squeegeeing is performed with one hand, the workability is poor. In addition, since the screen frame cannot be attached to the object to be printed, the screen is misaligned with respect to the object to be printed. Therefore, for example, when performing multi-color printing by exchanging the screen, the screen frame after the exchange cannot be positioned on the object to be printed at the same position as the screen frame before the exchange.

[0008] An object of the present invention is to provide a screen frame mounting device and a screen frame mounting frame body that can prevent misalignment of the screen frame with respect to the object to be printed with a simple configuration and perform screen printing with good workability.

Means for Solving the Problems

[0009] In one aspect, a screen frame mounting device is a screen frame mounting device for attaching a screen frame that holds a screen used for screen printing to an object to be printed, and includes a frame body that holds the screen frame, and a fixing member that sandwiches the object to be printed between the frame body and is fixed to the frame body by magnetic force.

Effects of the Invention

[0010] According to the above aspect, it is possible to prevent misalignment of the screen frame with respect to the object to be printed with a simple configuration and perform screen printing with good workability.

Brief Description of the Drawings

[0011]

Figure 1

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Embodiments for Carrying Out the Invention

[0012] Hereinafter, a screen frame mounting device according to an embodiment of the present invention will be described with reference to the drawings.

[0013] FIGS. 1 to 3 are a perspective view, an exploded perspective view, and a front view showing a screen frame mounting device 1 according to an embodiment.

[0014] FIG. 4 is an internal structure diagram showing the first magnet 12 and the second magnet 22 of the screen frame mounting device 1.

[0015] FIG. 5 is a perspective view showing the screen frame mounting device 1 in a state where the object to be printed M is sandwiched.

[0016] FIG. 6 is a perspective view showing the screen frame mounting device 1 with the printed object M sandwiched therebetween and the screen frame 100 before being held.

[0017] FIG. 7 is a perspective view showing the screen frame mounting device 1 with the printed object M sandwiched therebetween and the screen frame 100 after being held.

[0018] Note that the front - rear direction, left - right direction, and up - down direction shown in FIGS. 1 to 7 and FIGS. 8 to 11 described later are merely examples when the direction in which the frame body 10 and the fixing member 20 face each other is defined as the up - down direction. For example, the up - down direction is the vertical direction, and the front - rear direction and the left - right direction are the horizontal directions.

[0019] As shown in FIGS. 1 to 3, the screen frame mounting device 1 includes a frame body (screen frame mounting frame body) 10 and a fixing member 20. As shown in FIGS. 5 to 7, the screen frame mounting device 1 is a device for attaching a screen frame 100 that holds a screen S for screen printing to a printed object M. Similarly, it can be said that the frame body 10 is also for attaching a screen frame 100 that holds a screen S for screen printing to a printed object M. The printed object M is illustrated as a T - shirt in FIGS. 5 to 7, but can be any medium on which screen printing is performed. Also, the screen S has holes formed in the region that becomes the printing portion, for example, by performing thermal perforation using a thermal head or by curing a photocurable agent outside the printing portion.

[0020] Although details will be described later, the frame body 10 holds the screen frame 100. The fixing member 20 sandwiches the printed object M between itself and the frame body 10 and is fixed to the frame body 10 by magnetic force.

[0021] As shown in FIGS. 1 and 4, the frame body 10 has a first base material 11 and four first magnets 12. As shown in FIGS. 2 and 4, the fixing member 20 has a second base material 21 and four second magnets 22 (shown by hidden lines in FIG. 2).

[0022] The first base material 11 has a rectangular frame shape with a rectangular hollow portion for exposing the front and back of the screen S shown in FIGS. 6 and 7. The second base material 21 has a rectangular plate shape without a hollow portion. Note that the second base material 21 may have a frame shape similar to the first base material 11, but from the viewpoint of placing the screen frame mounting device 1 on a planar base (not shown) at the bottom surface of the second base material 21 as will be described later, it is desirable that it does not have a hollow portion. The first base material 11 and the second base material 21 are made of a non-magnetic material such as plastic or aluminum. Note that it is desirable that the first base material 11 exhibits a non-magnetic property at least around the first magnet 12, and the second base material 21 exhibits a non-magnetic property at least around the second magnet 22.

[0023] As shown in FIGS. 1 and 2, the first base material 11 includes two first peeling portions 11a provided at the right front portion and the right rear portion of the first base material 11, four first covers 11b covering the four first magnets 12, a holding recess 11c for holding the screen frame 100, two positioning pins 11d for positioning the screen frame 100, and two removal recesses 11e provided at the rear portion of the holding recess 11c for removing the screen frame 100.

[0024] The two first peeling portions 11a are non-opposing portions to the fixing member 20 in the fixed state of the frame body 10 and the fixing member 20. One of the first peeling portions 11a protrudes forward, and the other first peeling portion 11a protrudes rearward. Note that the first peeling portion 11a is an example of a peeling portion provided on at least one of the frame body 10 and the fixing member 20 and being a non-opposing portion to the other in the fixed state of the frame body 10 and the fixing member 20. When one of the frame body 10 and the fixing member 20 (for example, the frame body 10) is larger than the other (for example, the fixing member 20) in the longitudinal direction (front-rear direction) or the lateral direction (left-right direction), this peeling portion may be continuously provided around one without having a protruding portion.

[0025] As shown in FIG. 4, the first cover 11b covers the protruding portion of the first magnet 12 embedded in the first base material 11 from the upper surface side (the surface opposite to the second base material 21) of the first base material 11. The first magnet 12 is embedded so as to protrude upward from the first base material 11, and the first cover 11b covers the protruding portion of the first magnet 12. Note that the first magnet 12 is preferably fixed to the first base material 11 with an elastic adhesive. Further, in order to absorb the impact when the first magnet 12 and the second magnet 22 are attracted to each other with an elastic cushion, the first cover 11b is preferably fixed to the first magnet 12 and the first base material 11 with an elastic adhesive. The first cover 11b is preferably made of the same material as the first base material 11 in order to have good adhesiveness.

[0026] As shown in FIGS. 1 and 2, the holding recess 11c is provided so as to be recessed along the edge of the hollow portion at the center of the first base material 11 on the surface side of the first base material 11 opposite to the second base material 21. Therefore, it can be said that the screen frame 100 shown in FIGS. 6 and 7 is attached to the first base material 11 from the side opposite to the second base material 21 and held by the first base material 11 by being fitted into the holding recess 11c.

[0027] The two positioning pins 11d protrude upward from a portion on the right side of the front center of the holding recess 11c and a portion on the right side of the rear center. The two positioning pins 11d are inserted into the two pin insertion holes 101 (see FIGS. 6 and 7) of the screen frame 100. In this way, when the two positioning pins 11d are inserted into the two pin insertion holes 101, the screen frame 100 is positioned with respect to the frame body 10. More specifically, the diameter of the front pin 11d among the two pins 11d is formed larger than that of the rear pin 11d in FIG. 1, and the diameter of the front pin insertion hole 101 among the two pin insertion holes 101 of the screen frame 100 is formed larger than that of the rear pin insertion hole 101 in FIG. 6, so that the screen frame cannot be attached upside down.

[0028] The two removal recesses 11e are provided so as to be recessed from the right rear part of the holding recess 11c across the upper surface of the first base material 11 in order to remove the screen frame 100 fitted in the holding recess 11c with a finger.

[0029] The second base material 21 has two second peeling parts 21a provided at the right front part and the right rear part of the second base material 21, and four second covers 21b (see FIG. 4) covering the four second magnets 22.

[0030] The two second peeling parts 21a are non-opposing parts with the frame body 10 in the fixed state of the frame body 10 and the fixing member 20. One second peeling part 21a protrudes forward, and the other second peeling part 21a protrudes rearward. The second peeling part 21a is provided side by side in the left-right direction with the first peeling part 11a in order to manually peel the fixed frame body 10 and the fixing member 20. Note that the first peeling part 11a and the second peeling part 21a may be arranged side by side without a gap, or may be arranged with a gap therebetween to such an extent that the frame body 10 and the fixing member 20 can be peeled. From the viewpoint of peeling the frame body 10 and the fixing member 20, it is desirable that at least one of the frame body 10 (first base material 11) and the fixing member 20 (second base material 21) has elasticity. Here, the second peeling part 21a is an example of a peeling part provided on at least one of the frame body 10 and the fixing member 20 and being a non-opposing part with the other in the fixed state of the frame body 10 and the fixing member 20. Note that when only one of the frame body 10 (first base material 11) and the fixing member 20 (second base material 21) has elasticity, it is preferable that the one having elasticity has the peeling part (first peeling part 11a and second peeling part 21a), but even if only the other has the peeling part, it is possible to peel the frame body 10 and the fixing member 20 starting from this peeling part.

[0031] As shown in FIG. 4, the second cover 21b covers the second magnet 22 that is entirely embedded in the second base material 21 from the bottom surface side (the surface opposite to the first base material 11) of the second base material 21. Note that the second magnet 22 may be fixed to the second base material 21 with an adhesive. Further, the second cover 21b may be fixed to the second magnet 22 and the second base material 21 with an adhesive. The second cover 21b is preferably made of the same material as the second base material 21 in order to have good adhesiveness.

[0032] Unlike the first magnet 12, the second magnet 22 does not protrude from the second base material 21 and is entirely embedded in the second base material 21 so that the screen frame mounting device 1 can be placed on a flat base (not shown) at the bottom surface of the second base material 21, and by loading it on the flat base over the entire bottom surface, the device becomes difficult to move during squeegeeing due to frictional force. From this perspective, it is desirable that the bottom surface of the second base material 21 is a smooth surface without protrusions. Also, since the bottom surface of the first base material 11 and the upper surface of the second base material 21 are in contact with the object to be printed M, it is similarly desirable that they are smooth surfaces without protrusions. Note that the first magnet 12 protrudes from the first base material 11 and is covered by the first cover 11b in order to increase the elasticity by making the first base material 11 thin, making it easier to peel the first base material 11 (frame body 10) from the second base material 21 (fixing member 20), or to manufacture the first base material 11 at low cost.

[0033] The four first magnets 12 are permanent magnets and are provided inside the first base material 11 by being partially embedded in the first base material 11 and covered by the first cover 11b as described above. The four first magnets 12 are provided at the right front, right rear, left front, and left rear portions of the frame body 10.

[0034] The four second magnets 22 are permanent magnets. As described above, the whole is embedded in the second base material 21 and covered by the second cover 21b, so they are provided inside the second base material 21. The four second magnets 22 are provided at the right front part, right rear part, left front part, and left rear part of the fixing member 20 so as to face the first magnet 12 with different magnetic poles from the first magnet 12.

[0035] Here, the four first magnets 12 and the four second magnets 22 need to fix the object to be printed M with a force stronger than the squeegeeing force. When sandwiching a generally thick cloth as the object to be printed M, for example, as shown by the thick arrow in FIG. 10, an adsorption force of about 200 N (total amount of multiple magnets) and, as shown by the thick arrow in FIG. 11, a displacement force in the front-back and left-right directions of about 120 N (total amount of multiple magnets) are required, which is obtained from the experimental results.

[0036] Such a small-sized magnetic force can be obtained, for example, by using a magnet made of rare-earth neodymium as a raw material. However, it is not the case that the stronger the magnetic force is, the better. From the perspective of usability, the frame body 10 and the fixing member 20 must be separable to a certain extent. From this perspective, it is obtained by experiments that, for example, it is desirable that the adsorption force is about 400 N or less.

[0037] In this embodiment, since the first peeling portion 11a and the second peeling portion 21a are provided, by pinching the first peeling portion 11a and the second peeling portion 21a on the front side or the first peeling portion 11a and the second peeling portion 21a on the rear side with fingers and peeling the elastic frame body 10 from the fixing member 20 so as to lift it, the first magnet 12 and the second magnet 22 are separated one by one.

[0038] In the present embodiment, an example in which each of the first magnet 12 and the second magnet 22 is four is described, but the number of the first magnet 12 and the second magnet 22 is not particularly limited. However, it is desirable that a plurality of the first magnets 12 and the second magnets 22 are arranged. When a plurality of the first magnets 12 and a plurality of the second magnets 22 are arranged, they may be positioned so as to sandwich the hollow portion (screen frame 100) at the center of the first base material 11. Note that the frame body 10 and the fixing member 20 can also be fixed by magnetic force by providing a magnet on only one of the frame body 10 and the fixing member 20 and providing a ferromagnetic portion facing this magnet on the other.

[0039] To attach the screen frame 100 to the object to be printed M using the above-described screen frame attaching device 1, first, as shown in FIG. 5, the frame body 10 and the fixing member 20 sandwich the object to be printed M and are fixed by the magnetic force of the first magnet 12 and the second magnet 22.

[0040] Next, as shown in FIGS. 6 and 7, for example, with the positioning pin 11d of the first base material 11 inserted into the pin insertion hole 101 of the screen frame 100 that holds the screen S attached to the bottom surface, the screen frame 100 is fitted into the holding recess 11c and held by the first base material 11 (frame body 10). Note that the screen frame 100 may be held by the first base material 11 before the frame body 10 and the fixing member 20 are fixed.

[0041] Then, screen printing is performed on the object to be printed M by applying ink through the holes (printing portions) of the screen S with a squeegee.

[0042] Thereafter, when performing screen printing with ink of another color on the same portion of the object to be printed M, for example, with the frame body 10 and the fixing member 20 fixed, fingers are inserted into the two removal recesses 11e to remove the screen frame 100, and another screen frame 100 is held by the frame body 10 as described above. Then, the above-described screen printing is performed again.

[0043] Here, as shown in FIG. 8, the four first magnets 12 and the four second magnets 22 are referred to as a right rear magnet pair 12-1, 22-1, a right front magnet pair 12-2, 22-2, a left front magnet pair 12-3, 22-3, and a left rear magnet pair 12-4, 22-4.

[0044] Individual differences (deviations within tolerances) of the screen frame mounting device 1 (frame body 10 and fixing member 20) occur at the positions of these four pairs of magnet pairs. However, since it stabilizes at a position where the adsorption forces of the four pairs of magnet pairs are balanced, there is no need to worry about individual differences or tighten tolerances. In this way, the effect of reducing costs can be obtained by not tightening the tolerances of the positions of the magnet pairs.

[0045] Specifically, as shown in FIG. 9, when fixing the frame body 10 and the fixing member 20, even if there are gaps A in the horizontal plane for the right rear magnet pair 12-1, 22-1, gaps B in the horizontal plane for the right front magnet pair 12-2, 22-2, gaps C in the horizontal plane for the left front magnet pair 12-3, 22-3, and gaps D in the horizontal plane for the left rear magnet pair 12-4, 22-4, as shown by the thick arrows, the frame body 10 and the fixing member 20 move relative to each other to a position where the gaps A to D are balanced with substantially the same amount.

[0046] In the embodiment described above, the screen frame mounting device 1 is a screen frame mounting device 1 for attaching a screen frame 100 that holds a screen S used for screen printing to a printed object M, and includes a frame body 10 that holds the screen frame 100 and a fixing member 20 that sandwiches the printed object M between the frame body 10 and is fixed to the frame body 10 by magnetic force. From another perspective, the frame body 10, which is a screen frame mounting frame body, is a frame body 10 for attaching a screen frame 100 that holds a screen S used for screen printing to a printed object M, holds the screen frame 100, sandwiches the printed object M between it and the fixing member 20, and is fixed to the fixing member 20 by magnetic force.

[0047] As a result, with the screen frame 100 held by the frame body 10, the object to be printed M can be sandwiched and the frame body 10 and the fixing member 20 can be fixed, so that displacement of the screen frame 100 relative to the object to be printed M can be prevented. Therefore, squeegeeing can be performed without worrying about displacement of the screen frame 100, and screen printing can be performed with good workability. In addition, with a simple configuration using the frame body 10 and the fixing member 20, displacement of the screen frame 100 relative to the object to be printed M can be prevented. Therefore, according to the present embodiment, displacement of the screen frame 100 relative to the object to be printed M can be prevented with a simple configuration, and screen printing can be performed with good workability. Furthermore, since the frame body 10 and the fixing member 20 that hold the screen frame 100 can sandwich and fix the object to be printed M, when performing multi-color printing by exchanging the screen S (screen frame 100), after the exchange, the screen frame 100 after the exchange can be positioned at the same position as the screen frame 100 before the exchange with respect to the object to be printed M by mounting the screen frame 100 after the exchange on the frame body 10 while the frame body 10 and the fixing member 20 are in a state of sandwiching and fixing the object to be printed M.

[0048] Also, in the present embodiment, the frame body 10 has a first magnet 12 and a first base material 11 made of a non-magnetic material at least around the first magnet 12. The fixing member 20 has a second magnet 22 provided at a position facing the first magnet 12 and a second base material 21 made of a non-magnetic material at least around the second magnet 22.

[0049] As a result, the frame body 10 and the fixing member 20 can be firmly fixed by the magnetic forces of the first magnet 12 and the second magnet 22 provided on both the frame body 10 and the fixing member 20, and the fixing by the magnetic force between the first magnet 12 and the second magnet 22 can be prevented from being inhibited by the non-magnetic portions of the first base material 11 and the second base material 21. Therefore, the frame body 10 and the fixing member 20 can be accurately fixed.

[0050] In addition, in the present embodiment, the first magnet 12 is provided inside the first base material 11, and the second magnet 22 is provided inside the second base material 21.

[0051] Thereby, compared with the case where the first magnet 12 is exposed to the second base material 21 side or the second magnet 22 is exposed to the first base material 11 side, the first magnet 12 and the second magnet 22 can be prevented from being damaged by the impact during the fixing of the frame body 10 and the fixing member 20. Further, even if the first magnet 12 and the second magnet 22 are damaged, it is possible to prevent the first magnet 12 and the second magnet 22 from being separated or fragments from scattering.

[0052] In addition, in the present embodiment, at least one of the frame body 10 and the fixing member 20 has a peeling portion (for example, the first peeling portion 11a and the second peeling portion 21a) that is a non-facing portion with the other in the fixed state of the frame body 10 and the fixing member 20, and at least one of the frame body 10 and the fixing member 20 has elasticity.

[0053] Thereby, a finger or the like can be hooked on the peeling portion of one of the elastic frame body 10 and the fixing member 20 and peeled off from the other. Therefore, the fixed state of the frame body 10 and the fixing member 20 can be easily released.

[0054] It should be noted that the present invention is not limited to the above-described embodiment as it is, and the components can be modified and embodied without departing from the gist thereof at the implementation stage. Further, various inventions can be formed by appropriately combining a plurality of components disclosed in the above-described embodiment. For example, all the components shown in the embodiment may be appropriately combined. Needless to say, various modifications and applications are possible within the scope not departing from the gist of the invention. Hereinafter, the invention described in the claims of the present application at the time of filing is appended.

[0055] [Appendix 1] A screen frame mounting device for attaching a screen frame that holds a screen used for screen printing to an object to be printed, a frame body that holds the screen frame, and a fixing member that sandwiches the object to be printed between the frame body and is fixed to the frame body by magnetic force characterized by comprising the above.

[0056] [Appendix 2] The frame body has a first magnet and at least a first base material made of a non-magnetic material around the first magnet, The fixing member has a second magnet provided at a position facing the first magnet and at least a second base material made of a non-magnetic material around the second magnet The screen frame mounting device according to Appendix 1, characterized by the above.

[0057] [Appendix 3] The first magnet is provided inside the first base material, The second magnet is provided inside the second base material The screen frame mounting device according to Appendix 2, characterized by the above.

[0058] [Appendix 4] At least one of the frame body and the fixing member has a peeling portion that is a non-facing portion with the other in the fixed state of the frame body and the fixing member, At least one of the frame body and the fixing member has elasticity The screen frame mounting device according to any one of Appendices 1 to 3, characterized by being provided side by side for manually peeling the frame body and the fixing member. The screen frame mounting device according to any one of Appendices 1 to 3, characterized by the above.

[0059] [Appendix 5] A screen frame mounting frame body for attaching a screen frame that holds a screen used for screen printing to an object to be printed, holding the screen frame, The printed object is sandwiched between the fixing member and fixed to the fixing member by magnetic force. A screen frame mounting frame characterized by the above.

Explanation of reference numerals

[0060] 1 Screen frame mounting device 10 Frame body 11 First base material 11a First peeling part 11b First cover 11c Holding recess 11d Positioning pin 11e Removal recess 12 First magnet 20 Fixing member 21 Second base material 21a Second peeling part 21b Second cover 22 Second magnet 100 Screen frame 101 Pin insertion hole S Screen M Printed object

Claims

1. A screen frame mounting device for attaching a screen frame that holds a screen used for screen printing to an object to be printed, comprising: a frame body that holds the screen frame; a fixing member that sandwiches the object to be printed between the frame body and is fixed to the frame body by magnetic force; The screen frame mounting device is characterized in that: the frame body has a first magnet and a first base material made of a non-magnetic material at least around the first magnet; the fixing member has a second magnet provided at a position facing the first magnet and a second base material made of a non-magnetic material at least around the second magnet. A screen frame mounting device characterized by the above.

2. The first magnet is provided inside the first base material; The second magnet is provided inside the second base material. The screen frame mounting device according to Claim 1, characterized by the above.

3. A screen frame mounting device for attaching a screen frame that holds a screen used for screen printing to an object to be printed, comprising: a frame body that holds the screen frame; a fixing member that sandwiches the object to be printed between the frame body and is fixed to the frame body by magnetic force; The screen frame mounting device is characterized in that: at least one of the frame body and the fixing member has a peeling portion that is a non-facing portion with the other in the fixed state between the frame body and the fixing member; at least one of the frame body and the fixing member has elasticity. A screen frame mounting device characterized by the above.

Images