JP3960707B2 - Cap frame device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a sewing machine hat frame device for embroidering a hat.
[0002]
[Prior art]
As shown in FIGS. 5 and 6, the conventional hat frame device 105 includes a hat frame 100 that holds the hat 1, a rotary drive frame 106 that externally fits the hat frame 100 on the sewing machine side, A support frame 109 that rotatably supports the rotation drive frame 106 and a guide plate 110 that is fixed to the support frame 109 and extends to the side of the cylindrical bed 111 of the sewing machine are provided.
[0003]
When the support frame 109 is attached to the sewing machine, the attachment bracket 113 is fixed to the upper surface of the horizontal drive frame (pantograph) 112. A slide rail 114 for rotational driving is attached to the back surface of the bracket 113, and a support frame 109 is attached to the rail groove 114a via a bearing roller 115.
[0004]
[Problems to be solved by the invention]
However, with this structure, the mounting of the support frame 109 is simple, but a gap 116 is always required between the rail groove 114a and the bearing roller 115, which becomes a backlash in the front-rear direction and adversely affects the quality of the embroidery. Furthermore, the cap frame 100 vibrates in the vertical direction during high-speed operation (for example, 750 rpm), and needle breakage frequently occurs or the embroidery finish becomes dirty.
[0005]
An object of the present invention is to solve the above problems and provide a cap frame device that can be attached to a horizontal drive frame without play.
[0006]
[Means for Solving the Problems]
Therefore, in the present invention, in order to achieve the above object, the following measures are taken. Each of these means will be described with reference to FIGS.
[0007]
A hat frame 10 that holds the hat 1, a rotation drive frame 30 that fits the hat frame 10 so as to be replaceable on the sewing machine side, and rotation that is imparted to the rotation drive frame 30 via a medium such as a wire 61. A hat frame device comprising a horizontal drive frame 60 for applying a drive in the front-rear direction, and a support frame 40 that is engaged with the horizontal drive frame 60 so as to be relatively displaceable and rotatably supports the rotary drive frame 30. ,
The support frame 40 includes a front member 47 located on the front side of the horizontal drive frame 60 and a rear member 48 located on the rear side of the horizontal drive frame 60,
In a state where the horizontal drive frame 60 is sandwiched between a front bearing roller 49 rotatably provided on the front member 47 and a rear bearing roller 50 rotatably provided on the rear member 48, the front member 47 and the rear member 48 The hat frame device 9 is characterized in that the two are combined.
[0008]
The front side member 47 and the rear side member 48 have a coupling screw 52 screwed into the U groove 51 provided in one (the rear side member 48 in the illustrated example) and the other (the front side member 47 in the illustrated example). It is possible to exemplify a mode in which the coupling screw 52 is coupled by being inserted and tightened.
[0009]
One of the front bearing roller 49 and the rear bearing roller 50 is one, and the other is two or more (so-called three-point support without backlash), or both are two or more. An aspect etc. can be illustrated. In the illustrated example, there are two front bearing rollers 49 and one rear bearing roller 50.
[0010]
The support frame 40 is attached as follows.
The front member 47 is attached to the front side of the horizontal drive frame 60.
The rear member 48 is inserted horizontally from the rear side of the horizontal drive frame 60 toward the front member 47 through the lower side of the horizontal drive frame 60.
At this time, the coupling screw 52 is inserted into the U groove 51 at the tip of the rear member 48. In this state, the horizontal bearing frame 60 (the front and rear surfaces thereof) is sandwiched between the front bearing roller 49 and the rear bearing roller 50.
In the state of being sandwiched in this manner, the coupling screw 52 is tightened while being careful not to leave a gap (backlash) between the horizontal drive frame 60 and each of the bearing rollers 49 and 50.
[0011]
According to the hat frame device 9, the following effects can be obtained.
The vibration of the cap frame 10 in the front-rear direction at a high speed (for example, 800 rpm) is reduced by receiving the driving force in the front-rear direction of the cap frame 10 directly (without backlash) from the horizontal drive frame 60.
-Since vibration is reduced at high speeds, step-out of the cap frame 10 in the front-rear direction is suppressed, so that embroidery at high speed rotation is possible and the embroidery pattern is finished neatly.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
1 to 4 show a sewing machine hat frame device 9 embodying the present invention. As shown in FIG. 1, the sewing machine includes a cylindrical bed 91 protruding from the sewing machine frame 90 in parallel with the arrow Y direction. A guide rail 62 protrudes in parallel with the cylindrical bed 91 at the lower part on the proximal end side of the cylindrical bed 91, and the hat frame device 9 including the hat frame 10 can move in the Y direction on the guide rail 62. It is supported. Further, a horizontal drive frame 60 extending in the X direction (FIG. 3) perpendicular to the Y direction in the horizontal plane is provided on the cylindrical bed 91 so that the hat frame device 9 is moved by the horizontal drive frame 60. It has become.
[0013]
A needle plate 92 provided with a needle hole 92a is disposed on the top surface on the distal end side of the cylindrical bed 91, and a hook (not shown) around which a lower thread is wound is incorporated below the needle plate 92. A needle 93 is provided above the cylindrical bed 91 so as to be movable up and down on a sewing head (not shown). The cap 1 held by the cap frame device 9 is embroidered by the cooperation of the needle 93 driven based on the embroidery data and the shuttle.
[0014]
The hat frame device 9 is for supporting the embroidery processing range of the hat 1 in an appropriate form directly above the cylindrical bed 91, and is engaged with the horizontal drive frame 60 so as to be relatively displaceable and guide rails 62. A support frame 40 that is slidably movable in the Y direction along the axis, a rotation drive frame 30 that is supported by the support frame 40 so as to be rotatable about an axis parallel to the Y direction, and the cap 1 is sandwiched and rotated. A cap frame 10 that is externally fitted to the drive frame 30 and a stay 45 that protrudes forward from the support frame 40 and extends to the side of the cylindrical bed 91 (both left and right sides in the illustrated example). An elastic plate 41 and an auxiliary roller 42 that is rotatably provided at the tip of the elastic plate 41 and rotates in contact with the boundary corner portion 7 between the peripheral surface portion 5 and the top surface portion 6 of the cap 1 sandwiched between the cap frames 10. And.
[0015]
As shown in FIGS. 1 and 2, the hat frame 10 sandwiches the hat 1 between the cylindrical receiving frame 11 inserted inside the hat 1 and the receiving frame 11 wound around the outer side of the hat 1. A holding band 12 is provided.
[0016]
The rotation drive frame 30 is rotated by a horizontal drive frame 60 via a wire 61 and is driven in the front-rear direction.
[0017]
The support frame 40 includes a front member 47 positioned on the front side of the horizontal drive frame 60 and a rear member 48 positioned on the rear side of the horizontal drive frame 60.
[0018]
The front member 47 is a pair of guide holes 47a into which the guide rails 62 are slidably inserted, bed holes 47b into which the cylindrical bed 91 is inserted, and upper ends on both sides of the cylindrical bed 91 are bent horizontally. The horizontal plate portion 55 is provided. Each horizontal plate portion 55 is provided with a front bearing roller 49 that is rotatably provided in a horizontal plane, and a screw hole 56 into which a coupling screw 52 for coupling the rear member 48 is screwed.
[0019]
The rear member 48 includes a base plate portion 57 extending in the X direction, and a pair of connecting plates extending in the Y direction from both ends of the base plate portion 57 through both sides of the cylindrical bed 91 and below the horizontal drive frame 60. Part 58. One rear bearing roller 50 is rotatably provided in the horizontal plane at the center of the base plate portion 57 in the X direction. A U-groove 51 into which the coupling screw 52 screwed into the horizontal plate portion 55 of the front member 47 can enter is provided at the tip of the connecting plate portion 58.
[0020]
Then, the coupling screw 52 screwed into the front member 47 enters the U groove 51 provided in the rear member 48, and the coupling screw 52 is tightened so that the front member 47 and the rear member 48 are connected. Combined.
[0021]
As described above, the horizontal drive frame 60 is sandwiched between the two front bearing rollers 49 of the front member 47 and the one rear bearing roller 50 of the rear member 48 (so-called three-point support without backlash). Thus, the front member 47 and the rear member 48 are coupled.
[0022]
The support frame 40 is attached as follows.
(1) The guide rail is inserted into the guide hole 47a, the cylindrical bed 91 is inserted into the bed hole 47b, and the front member 47 is attached to the front side of the horizontal drive frame 60.
[0023]
(2) The rear member 48 is inserted horizontally from the rear side of the horizontal drive frame 60 through the lower side of the horizontal drive frame 60 toward the front member 47.
[0024]
(3) At this time, the coupling screw 52 is inserted into the U groove 51 at the tip of the rear member 48. In this state, the horizontal bearing frame 60 (the front and rear surfaces thereof) is sandwiched between the front bearing roller 49 and the rear bearing roller 50.
[0025]
(4) In this state, the coupling screw 52 is tightened while taking care not to leave a gap (backlash) between the horizontal drive frame 60 and the bearing rollers 49 and 50.
[0026]
According to the hat frame device 9, the following effects can be obtained.
(A) By receiving the driving force in the front-rear direction of the cap frame 10 directly (without backlash) from the horizontal drive frame 60, the vibration of the cap frame 10 in the front-rear direction at high speed (for example, 800 rpm) is reduced.
[0027]
(B) Since vibration is reduced at high speed, the step-out of the cap frame 10 in the front-rear direction can be suppressed, so that embroidery at high speed rotation is possible and the embroidery pattern is finished finely.
[0028]
In addition, this invention is not limited to the structure of the said embodiment, For example, it can also be suitably changed and embodied as follows, for example in the range which does not deviate from the meaning of invention.
(1) The coupling screw 52 screwed into the rear member 48 enters the U groove 51 provided in the front member 47, and the coupling screw 52 is tightened to be coupled.
[0029]
(2) Use one front bearing roller 49 and two rear bearing rollers 50. Alternatively, the front bearing roller 49 and the rear bearing roller 50 are both two or more.
[0030]
【The invention's effect】
As described above in detail, according to the cap frame device for a sewing machine according to the present invention, there is an excellent effect that it can be attached to the horizontal drive frame without play.
[Brief description of the drawings]
FIG. 1 is a right side view showing a cap frame device of a sewing machine according to an embodiment of the present invention.
FIG. 2 is a front view of a hat frame of the hat frame device.
FIG. 3 is a front view of the cap frame device.
FIG. 4 is a plan view of the cap frame device.
FIG. 5 is a right side view showing a conventional hat frame device.
6 is a partially enlarged view of FIG. 5;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Hat 1a Cloth piece 2 Corresponding part 3 Sweat removal part 4 Eaves 5 Circumferential surface part 6 Top surface part 7 Boundary corner part 8 Projection part 9 Hat frame device 10 Hat frame 11 Receiving frame 12 Holding band 12a One end 12b Other end 13 Pressing piece 14 Protrusion Part 15 Opening 15a Protruding part 16 Axle part 17 Hook part 18 Hook part 19 Restricting piece 20 Side face V-shaped corner 21 Ring 22 U-shaped part 23 Collar part 23a Outer peripheral surface 24 Fitting piece 25 Holding clip 26 Curved plate 30 Rotation drive frame 31 Latch claw 32 Lever 33 Shaft 34 Spring 35 Contact projection 36 Spring plunger 40 Support frame 41 Elastic plate 42 Auxiliary roller 43 Hemispherical surface 44 Contact pit surface 45 Stay 46 Screw 47 Front member 47a Guide hole 47b Bed Hole 48 Rear member 49 Front bearing roller 50 Rear bearing roller 51 U groove 52 Coupling screw 53 Screw 54 Mounting portion 5 5 Horizontal flat plate portion 56 Screw hole 57 Base plate portion 58 Connection plate portion 60 Horizontal drive frame 61 Wire 62 Guide rail 90 Sewing frame 91 Cylindrical bed 92 Needle plate 92a Needle hole 93 Needle

Claims (4)

A hat frame that sandwiches the hat, a rotation drive frame that fits the hat frame on the sewing machine side so that the hat frame can be replaced, and a rotational drive frame that provides rotation through a medium such as a wire and forward / backward drive A hat frame device comprising: a horizontal drive frame, and a support frame that is engaged with the horizontal drive frame so as to be relatively displaceable and rotatably supports the rotary drive frame.
The support frame includes a front member positioned on the front side of the horizontal drive frame and a rear member positioned on the rear side of the horizontal drive frame,
The front member and the rear member are joined together with the horizontal drive frame sandwiched between the front bearing roller rotatably provided on the front member and the rear bearing roller rotatably provided on the rear member. A hat frame device characterized by that. The cap frame according to claim 1, wherein the front member and the rear member are joined together by a coupling screw screwed into the other being inserted into a U groove provided in one of the two and tightening the coupling screw. apparatus. The cap frame device according to claim 1 or 2, wherein one of the front bearing roller and the rear bearing roller is one and the other is two or more. The cap frame device according to claim 1 or 2, wherein there are two or more of the front bearing roller and the rear bearing roller.

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