EP2405046A2 - Embroidery fabric clamping unit for use with embroidery machine and embroidery machine comprising same - Google Patents
Embroidery fabric clamping unit for use with embroidery machine and embroidery machine comprising same Download PDFInfo
- Publication number
- EP2405046A2 EP2405046A2 EP10748977A EP10748977A EP2405046A2 EP 2405046 A2 EP2405046 A2 EP 2405046A2 EP 10748977 A EP10748977 A EP 10748977A EP 10748977 A EP10748977 A EP 10748977A EP 2405046 A2 EP2405046 A2 EP 2405046A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- embroidery
- fabric
- embroidery fabric
- lever
- levers
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000004744 fabric Substances 0.000 title claims abstract description 156
- 238000009956 embroidering Methods 0.000 claims abstract description 9
- 239000013013 elastic material Substances 0.000 claims description 5
- 238000003780 insertion Methods 0.000 description 18
- 230000037431 insertion Effects 0.000 description 18
- 238000000034 method Methods 0.000 description 12
- 238000010168 coupling process Methods 0.000 description 7
- 230000008878 coupling Effects 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 210000002445 nipple Anatomy 0.000 description 5
- 239000004033 plastic Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05C—EMBROIDERING; TUFTING
- D05C9/00—Appliances for holding or feeding the base fabric in embroidering machines
- D05C9/02—Appliances for holding or feeding the base fabric in embroidering machines in machines with vertical needles
- D05C9/04—Work holders, e.g. frames
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05C—EMBROIDERING; TUFTING
- D05C9/00—Appliances for holding or feeding the base fabric in embroidering machines
- D05C9/02—Appliances for holding or feeding the base fabric in embroidering machines in machines with vertical needles
- D05C9/04—Work holders, e.g. frames
- D05C9/06—Feeding arrangements therefor, e.g. influenced by patterns, operated by pantographs
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B31/00—Workpiece holders or hold-downs in machines for sewing leather
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B35/00—Work-feeding or -handling elements not otherwise provided for
- D05B35/02—Work-feeding or -handling elements not otherwise provided for for facilitating seaming; Hem-turning elements; Hemmers
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B39/00—Workpiece carriers
Definitions
- the present invention relates to an embroidery fabric clamping unit for an embroidery machine and an embroidery machine including the same, and more particularly, to an embroidery fabric clamping unit for an embroidery machine and an embroidery machine including the same which enable embroidering of embroidery fabrics having an arbitrary shape.
- An embroidery machine is an apparatus that automatically embroiders various patterns such as characters, figures, and images on raw fabrics using various colors of yarns. Embroidery machines are classified into single needle machines and multi needle machines according to the number of needles mounted thereon.
- Embroidery machines include an embroidery frame for setting embroidery fabrics such as raw fabrics.
- Korea Patent Publication No. 10-2004-91598 discloses an embroidery frame for setting a raw fabric which can prevent deformation of the embroidery frame.
- the disclosed embroidery frame is one for setting a fabric itself, it is difficult to set ready-made-products such as shoes, bags, pants, and T-shirts whose sewing has been already completed.
- ready-made-products such as shoes, bags, pants, and T-shirts whose sewing has been already completed.
- a typical embroidery frame has a structure in which ready-made-products such as shoes could not be properly fixed because it is configured to clamp four edges of a raw fabric.
- the above object can be achieved by embroidery fabric clamping units for an embroidery machine which includes: a unit body including a joining part detachably disposed on a work table of the embroidery machine; one or more embroidery fabric support tables each coupled to the unit body and supporting an embroidery fabric to be embroidered by the embroidery machine; one or more levers each supported by the unit body and applying a pressure to a corresponding embroidery fabric support table or releasing the pressure from the corresponding embroider fabric support table across the embroidery fabric; and a lever driving part driving the one or more levers.
- at least one of the one or more embroidery fabric support tables and the one or more levers are provided in plurality.
- at least one of the one or more embroidery fabric support tables and the one or more levers are provided so that the gaps therebetween are adjustable.
- the unit body may include a lever support part supporting the one or more levers and detachably coupled to the unit body.
- the one or more levers may be detachably coupled to the lever support part.
- the one or more levers may comprise an elastic material.
- each of the one or more levers may pivotaly move between a clamping position where the embroidery fabric is clamped by pressing the embroidery fabric on the corresponding embroidery fabric support tables and a release position where the embroidery fabric is unclamped by being spaced from the clamping position.
- the lever driving part may include: a pneumatic cylinder; a piston supported by the pneumatic cylinder and selectively applying a pressure to the one or more levers; and a foot switch selectively supplying air to the pneumatic cylinder.
- the lever driving part may further comprise an elastic member allowing the one or more levers to be elastically biased to the release position.
- an embroidery machine which comprises: a work table on which a raw fabric to be embroidered or an embroidery fabric is disposed; an embroidery fabric clamping unit according to any one of claims 1 through 3 detachably mounted on the work table; a raw fabric setting frame for setting the raw fabric; and a needle embroidering the embroidery fabric clamped by the embroidery fabric clamping unit.
- the embroidery fabric clamping unit for an embroidery machine and the embroidery machine including the same provide the following advantages.
- an embroidery machine 1 includes a work table 10 that enables an embroidering work by moving embroidery fabrics E in the X or Y direction; a needle 20 stitching the embroidery fabrics E; a needle driving part 30 feeding a yarn for stitching and driving the needle 20; a main body 40 supporting the work table 10; and a user input part 50 inputting an embroidery pattern to be embroidered on the embroidery fabric and inputting a control command.
- Sports shoes are exemplified as embroidery fabrics in FIG. 1 , and a bobbin wound with a bobbin thread is received in the sports shoes.
- the user input part 50 may be omitted.
- An embroidery fabric clamping unit 100 for clamping embroidery fabrics such as raw fabrics, shoes, bags, pants, and T-shirts may be detachably coupled to the work table 10.
- a typical raw fabric setting frame (not shown) may be installed on the work table 10 to clamp a raw fabric at an edge thereof with a rectangular or circular shape.
- the raw fabric setting frame (not shown) may also be detachably installed on the work table 10.
- the embroidery fabric clamping unit 100 for the embroidery machine includes a unit body 140 detachably coupled to the work table 10; an embroidery fabric support table 110 supporting the embroidery fabrics E to be embroidered by the embroidery machine 1; a lever 120 applying a pressure to the embroidery fabric support table 110 or releasing a pressure from the embroidery fabric support table 110 when the embroidery fabrics are disposed therebetween; and a lever driving part 130 driving the lever 120.
- the unit body 140 includes a joining part 143 coupled to the work table 10 and a connection part 145 connected to the embroidery fabric support table 110.
- One or more joining holes 143a are formed in the joining part 143 to allow the joining part 143 to be coupled to the work table 10 by a coupling member (not shown), but embodiments are not limited thereto.
- the joining part 143 may be coupled to the work table 10 by various coupling methods.
- One or more joining holes 146 are formed in the connection part 145 to allow the connection part 145 to be coupled to the embroidery fabric support table 110.
- Each of the embroidery fabric support table 110 includes a connection end 111 connected to the connection part 145 of the unit body 140 and a contact end 113 contacting the embroidery fabrics E.
- the surface of the contact end 113 is processed to have a surface roughness for a larger contact frictional force against the embroidery fabrics E.
- Each lever 120 is supported by the unit body 140.
- Each lever 120 includes an extension part 121 extending along the longitudinal direction; a bent part 123 bent toward the contact end 113; and a contact part 125 extending from the bent part 123 and facing the contact end 113.
- the shape of the lever 120 may be modified as long as the lever 120 can clamp the embroidery fabrics E together with the embroidery fabric support table 110.
- the surface of the contact part 125 may be processed to have a surface roughness to generate a larger contact frictional force against the embroidery fabrics E.
- the lever 120 may be formed of a metallic material such as aluminum and stainless steel.
- the lever 120 may also be formed of an elastic material.
- the elastic material may include plastic.
- the lever 120 When the lever 120 is formed of a metallic material, the lever 120 may be coated with an elastic material such as rubber, sponge, and plastic.
- the lever driving part 130 may drive the levers 120 using one of driving sources such as pneumatic, hydraulic, and electric motors.
- the unit body 140 may include a lever support part 150 for supporting the levers 120.
- the lever support part 150 may be detachably provided to the unit body 140.
- the lever support part 150 may be slidably provided to the unit body 140.
- the lever support part 150 includes a lever insertion part which the lever 120 is inserted into, a lever clamping part 155 for clamping the lever 120 in the lever insertion part 153, and a support body 151 for supporting the lever insertion part 153.
- the lever insertion part 153 may have an insertion hole 153a for receiving the lever 120.
- the lever 120 inserted into the insertion hole 153a is clamped by the lever clamping part 155 provided on one side of the lever insertion part 153.
- the lever insertion part 153 may be omitted in certain embodiments. More specifically, as shown throughout the attached drawings, the lever 120 is not coupled to the support body 151 indirectly while it is inserted in the lever insertion part 153, but may be directly coupled to the support body 151 without intervention of the lever insertion part 153.
- the lever 120 may be replaced by unfastening the lever clamping part 155.
- the lever 120 is detachably coupled to the lever support part 150.
- the support body 151 may have an opening 151 a for receiving one end of the lever insertion part 153 such that the lever insertion part 153 receiving the lever 120 pivotaly moves between a clamping position C and a release position B that are described later.
- the lever insertion part 153 received in the opening 151 a is pivoted on a hinge 152 in the support body 151.
- the lever 120 inserted into the lever insertion part 153 may apply a pressure to an embroidery fabric E, and may pivot between the clamping position C where the embroidery fabric is clamped and the release position B where the embroidery fabric is unclamped.
- the lever 120 may also vertically move instead of pivotaly moving.
- the lever 120 may vertically slide along a guide rail (not shown). In other words, the lever 120 may slide between the clamping position C where the embroidery fabric is clamped and the release position B where the embroidery fabric is unclamped.
- the support body 151 is disposed on the connection end 111 of the embroidery fabric support table 110.
- a coupling hole (not shown) communicating with the joining hole 146 of the unit body 140 is formed in the connection end 111 of the embroidery fabric support table 110.
- a slot 154 communicating with the joining hole 146 and the coupling hole (not shown) is formed in the support body 151.
- the unit body 140, the support 110, and the support body 151 are coupled to each other by the coupling member penetrating the joining hole 146, the coupling hole (not shown), and the slot 154.
- the lever driving part 130 includes a pneumatic cylinder 132 including an air nipple 131, and a piston 133 supported by the pneumatic cylinder 132 and selectively applying a pressure to the lever 120.
- the piston 133 may enter into an idle state in which a pneumatic pressure is not applied to the lever 120.
- the lever driving part 130 may further include an elastic member 135 that restores the lever 120 to the release position B.
- the lever 120 may be restored to the release position B.
- the elastic member 135 is disposed between an elastic member support piece 134 connected to the support body 151 and the end of the lever insertion part 153 penetrating the opening 151 a of the support body 151.
- the elastic member 135 may apply an elastic force to the lever insertion part 153 to allow the lever 120 to be elastically biased. In certain embodiments, the elastic force may be directly applied to the lever 120.
- the elastic member 135 may be disposed on the opposite side to the piston 133 across the hinge 152. More specifically, the elastic member 135 may apply an elastic force to the end of the lever insertion part 153 such that the contact part 125 of the lever 120 pivots toward the release position B. That is, the elastic force F of the elastic member 135 is applied in the direction of the arrow as shown in FIG. 5 .
- the elastic member 135 may also be disposed on the side of the piston based on the hinge 152. In this case, the elastic force of the elastic member 135 should be applied in the opposite direction of the elastic force F shown in FIG. 5 .
- the lever driving part 130 may further include a switch (not shown) that can selectively supply air through the air nipple 131.
- the switch (not shown) may be manually or automatically manipulated.
- the switch (not shown) may include a mechanical switch.
- the switch may be provided as a foot switch (not shown) that is manipulated by a foot such that a user grips the embroidery fabric E by his/her hands and puts the embroidery fabric E between the lever 120 and the embroidery fabric E.
- the foot switch (not shown) may adopt a toggle switching method. That is, when a user steps on the foot switch (not shown) once, air is supplied, whereas, when a user steps on the foot switch once more, air supply is interrupted.
- the lever driving part 130 includes a sensor (not shown) for sensing whether the embroidery fabric E exists between the embroidery fabric support table 100 and the lever 120, and a controller (not shown) for control the switch (not shown) based on a sensed result of the sensor (not shown).
- the switch may be disposed between an air tank (not shown) storing air and the pneumatic cylinder 132.
- the switch may include an electronic switch (not shown) supplying/interrupting air by receiving an electrical control signal from the controller (not shown).
- the controller may control the electronic switch (not shown) to be opened, thereby supplying air to the air nipple 131 (more precisely, to the pneumatic cylinder 132).
- the controller may control the electronic switch to interrupt air supply.
- the controller may be disposed in the embroidery machine 1, and the controller installed in the embroidery machine 1 may automatically sense whether the embroidery fabric clamping unit 100 for the embroidery machine 1 is disposed on the work table 10. The presence or absence of the clamping unit 100 is automatically sensed by disposing a contact sensor and a photo sensor on a joining part of the work table 10 and the clamping unit 100.
- the embroidery fabric support tables 110 and the levers 120 have been exemplified as disposed in pair, respectively, but embodiments are not limited thereto.
- three or more embroidery fabric support tables 110 and levers 120 may be disposed, respectively.
- one embroidery fabric support table 110 and two levers 120 may be disposed.
- the numbers and shapes of embroidery fabric support tables 110 and levers 120 may be modified as long as they can be engaged with each other across the embroidery fabric E to clamp the embroidery fabric E.
- a distance D between each pair of the embroidery fabric support tables 110 and the levers 120 can be adjusted.
- a plurality of the joining holes 146 by which the embroidery fabric support tables 110 and the levers 120 (the lever support part 150 to be exact) may be disposed in the unit body 140 in the direction of the distance D, and then the embroidery fabric support tables 110 and the levers 120 may be appropriately located according to the length of an embroidery fabric. Accordingly, the distance D may be adjusted using the coupling member S.
- the joining holes 146 may be disposed at a certain interval in the direction of the distance D.
- the interval between the joining holes 146 may also increase as becoming distant from a central line A in the direction of the distance D. This is for fine adjustment of the distance D near the central line A.
- the method of adjusting the distance D is merely an example.
- the method of adjusting the distance D between a pair of embroidery fabric support tables 110 may be modified in various manners.
- a user may locate a portion of an embroidery fabric E (e.g., shoes) to be embroidered between the embroidery fabric support table 110 and the lever 120.
- an embroidery fabric E e.g., shoes
- a user may step on the foot switch (not shown) to supply air to the pneumatic cylinder 132.
- the piston 133 is projected by a pneumatic pressure to apply a pressure to the lever 120 (precisely, the lever insertion part 153).
- the lever 120 may pivot from the release position B of FIG. 5 to the clamping position C where the embroidery fabric E is clamped.
- an embroidery command is inputted into the user input part 50 of the embroidery machine 1 to start embroidering.
- the user may step on the foot switch once again to interrupt the pneumatic pressure, and thus the lever 120 is restored to the release position B by an elastic force F of the elastic member 153.
- the embroidery fabric clamping unit 100 of the embroidery machine 1 will be operated as follows.
- a user interposes a portion of an embroidery fabric E (e.g., shoes) to be embroidered between the embroidery fabric support table 110 and the lever 120.
- the sensor (not shown) senses whether the embroidery fabric E is interposed between the lever 120 and the embroidery fabric support table 110, and transmits a sensed result to the controller (not shown).
- the controller controls the electronic switch (not shown) to supply air and allow the piston 133 to apply a pressure to the lever 120.
- the controller controls the electronic switch to interrupt air supply.
- the lever 120 is spaced from the embroidery fabric support table 110 by the elastic member 135 to be restored to the release position B.
- an embroidery fabric clamping unit for an embroidery machine includes: a Y-shaped embroidery fabric support table 110a; and a lever 120a having a shape corresponding thereto.
- Other configuration of the embroidery fabric clamping unit according to the second embodiment of the present invention is similar to that of the clamping unit 100 of the first embodiment.
- one pair of embroidery fabric support tables 110 and one pair of levers 120 shown in FIGS. 1 through 5 may be replaced by the Y-shape of the embroidery fabric support table 110a and the lever 120a.
- a distance between a first branch 115 and a second branch 117 of the Y-shape embroidery fabric support table 110a may be adjusted.
- the distance may be adjusted according to the length of an embroidery fabric to more easily clamp the embroidery fabric.
- a distance between a first branch 126 and a second branch 127 of the lever 120a may also be adjusted like the embroidery fabric support table 110a. Adjustment of the distance between the first branch 126 and the second branch 127 of the lever 120a may be performed by installing a rack on at least one of the first branch 126 and the second branch 127, disposing a pinion engaged with the rack, and then turning the pinion.
- the method for adjusting the distance may be similar to a method for adjusting the size of the jaw of an adjustable-end wrench that is a tool for fastening or unfastening bolts or nuts, but embodiments are not limited thereto. Accordingly, various methods may be applied to adjust the distance.
- FIGS. 8 through 10 illustrate the lever 120 attached with an elastic member 160.
- the elastic member 160 itself may be compressed to apply a larger pressure to the embroidery fabric (E of FIG. 5 ).
- the elastic member 160 includes at least one of sponge, rubber, and plastic.
- an elastic member 160a may have an increasing thickness as it becomes closer to the end of the contact part 125. Since a gripping force between the lever 120 and the embroidery fabric support table (110 of FIG. 5 ) may be reduced at the end of the contact part 125 due to the weight of an embroidery fabric, it may be necessary to complement the elastic force of the elastic member 160a at the end thereof.
- elastic members 160b and 160c formed of different materials may be attached to the contact part 125 of the lever 120.
- the modulus of elasticity of the elastic member 160c closer to the end of the contact part 125 of the lever 120 is preferably greater than that of the elastic member 160b distant from the end of the contact part 125. The reason is the same as what is described with reference to Fig. 9 .
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Abstract
Disclosed are an embroidery fabric clamping unit for use with an embroidery machine, and an embroidery machine comprising the same, which allow the embroidering of even embroidery fabrics of arbitrary shape. The embroidery fabric clamping unit comprises: a unit body having a joining part provided for attachment to and detachment from a work table of the embroidery machine; an embroidery fabric support table which is linked to the unit body and supports the embroidery fabric to be embroidered by the embroidery machine; a lever which is supported on the unit body, with the embroidery fabric placed in between, and is able to apply pressure to and release pressure from the embroidery fabric support table; and a lever driving part for driving the lever.
Description
- The present invention relates to an embroidery fabric clamping unit for an embroidery machine and an embroidery machine including the same, and more particularly, to an embroidery fabric clamping unit for an embroidery machine and an embroidery machine including the same which enable embroidering of embroidery fabrics having an arbitrary shape.
- An embroidery machine is an apparatus that automatically embroiders various patterns such as characters, figures, and images on raw fabrics using various colors of yarns. Embroidery machines are classified into single needle machines and multi needle machines according to the number of needles mounted thereon.
- Embroidery machines include an embroidery frame for setting embroidery fabrics such as raw fabrics. Korea Patent Publication No.
10-2004-91598 - However, since the disclosed embroidery frame is one for setting a fabric itself, it is difficult to set ready-made-products such as shoes, bags, pants, and T-shirts whose sewing has been already completed. The reason is because a typical embroidery frame has a structure in which ready-made-products such as shoes could not be properly fixed because it is configured to clamp four edges of a raw fabric.
- It is thus an object of the present invention to provide an embroidery fabric clamping unit for an embroidery machine and an embroidery machine including the same which enables embroidering of embroidery fabrics of arbitrary shape.
- The above object can be achieved by embroidery fabric clamping units for an embroidery machine which includes: a unit body including a joining part detachably disposed on a work table of the embroidery machine; one or more embroidery fabric support tables each coupled to the unit body and supporting an embroidery fabric to be embroidered by the embroidery machine; one or more levers each supported by the unit body and applying a pressure to a corresponding embroidery fabric support table or releasing the pressure from the corresponding embroider fabric support table across the embroidery fabric; and a lever driving part driving the one or more levers. Here, at least one of the one or more embroidery fabric support tables and the one or more levers are provided in plurality. Also, at least one of the one or more embroidery fabric support tables and the one or more levers are provided so that the gaps therebetween are adjustable.
- Furthermore, the unit body may include a lever support part supporting the one or more levers and detachably coupled to the unit body.
- Here, the one or more levers may be detachably coupled to the lever support part.
- Furthermore, the one or more levers may comprise an elastic material.
- Also, each of the one or more levers may pivotaly move between a clamping position where the embroidery fabric is clamped by pressing the embroidery fabric on the corresponding embroidery fabric support tables and a release position where the embroidery fabric is unclamped by being spaced from the clamping position.
- Also, the lever driving part may include: a pneumatic cylinder; a piston supported by the pneumatic cylinder and selectively applying a pressure to the one or more levers; and a foot switch selectively supplying air to the pneumatic cylinder.
- Here, the lever driving part may further comprise an elastic member allowing the one or more levers to be elastically biased to the release position.
- The above-mentioned object can be achieved by an embroidery machine which comprises: a work table on which a raw fabric to be embroidered or an embroidery fabric is disposed; an embroidery fabric clamping unit according to any one of claims 1 through 3 detachably mounted on the work table; a raw fabric setting frame for setting the raw fabric; and a needle embroidering the embroidery fabric clamped by the embroidery fabric clamping unit.
- The embroidery fabric clamping unit for an embroidery machine and the embroidery machine including the same provide the following advantages.
- First, since ready-made-products such as shoes and bags can be embroidered through clamping, the usability of an embroidery machine can be enhanced.
- Second, since a gap between levers for clamping embroidery fabrics or embroidery fabric support tables can be adjusted, various shapes of embroidery fabrics can be clamped.
-
-
FIG. 1 is a front view illustrating an embroidery machine according to an embodiment of the present invention; -
FIG. 2 is a perspective side view illustrating an embroidery fabric clamping unit of the embroidery machine ofFIG. 1 ; -
FIG. 3 is a perspective plan view illustrating an embroidery fabric clamping unit of the embroidery machine ofFIG. 1 ; -
FIG. 4 is a perspective front view illustrating an embroidery fabric clamping unit of the embroidery machine ofFIG. 1 ; -
FIGS. 5 and6 are views illustrating a clamping process of an embroidery fabric clamping unit of the embroidery machine ofFIG. 1 ; -
FIG. 7 is a plan view illustrating an embroidery fabric clamping unit of a second embodiment of the present invention; and -
FIGS. 8 through 10 are magnified views illustrating an embroidery fabric clamping unit of the embroidery machine ofFIG. 1 , which is attached with an elastic member. - Hereinafter, exemplary embodiments of an embroidery fabric clamping unit for an embroidery machine and an embroidery machine including the same will be described in detail with reference to the accompanying drawings.
- Referring to
FIG. 1 , an embroidery machine 1 includes a work table 10 that enables an embroidering work by moving embroidery fabrics E in the X or Y direction; aneedle 20 stitching the embroidery fabrics E; aneedle driving part 30 feeding a yarn for stitching and driving theneedle 20; amain body 40 supporting the work table 10; and auser input part 50 inputting an embroidery pattern to be embroidered on the embroidery fabric and inputting a control command. - Sports shoes are exemplified as embroidery fabrics in
FIG. 1 , and a bobbin wound with a bobbin thread is received in the sports shoes. - Depending on an embodiment, the
user input part 50 may be omitted. - An embroidery
fabric clamping unit 100 for clamping embroidery fabrics such as raw fabrics, shoes, bags, pants, and T-shirts may be detachably coupled to the work table 10. - If needed, a typical raw fabric setting frame (not shown) may be installed on the work table 10 to clamp a raw fabric at an edge thereof with a rectangular or circular shape. The raw fabric setting frame (not shown) may also be detachably installed on the work table 10.
- As shown in
FIGS. 2 through 5 , the embroideryfabric clamping unit 100 for the embroidery machine according to the first embodiment of the present invention includes aunit body 140 detachably coupled to the work table 10; an embroidery fabric support table 110 supporting the embroidery fabrics E to be embroidered by the embroidery machine 1; alever 120 applying a pressure to the embroidery fabric support table 110 or releasing a pressure from the embroidery fabric support table 110 when the embroidery fabrics are disposed therebetween; and alever driving part 130 driving thelever 120. - The
unit body 140 includes a joiningpart 143 coupled to the work table 10 and aconnection part 145 connected to the embroidery fabric support table 110. - One or more joining
holes 143a are formed in the joiningpart 143 to allow the joiningpart 143 to be coupled to the work table 10 by a coupling member (not shown), but embodiments are not limited thereto. For example, the joiningpart 143 may be coupled to the work table 10 by various coupling methods. - One or more joining
holes 146 are formed in theconnection part 145 to allow theconnection part 145 to be coupled to the embroidery fabric support table 110. - Each of the embroidery fabric support table 110 includes a
connection end 111 connected to theconnection part 145 of theunit body 140 and acontact end 113 contacting the embroidery fabrics E. - The surface of the
contact end 113 is processed to have a surface roughness for a larger contact frictional force against the embroidery fabrics E. - Each
lever 120 is supported by theunit body 140. - Each
lever 120 includes anextension part 121 extending along the longitudinal direction; abent part 123 bent toward thecontact end 113; and acontact part 125 extending from thebent part 123 and facing thecontact end 113. The shape of thelever 120 may be modified as long as thelever 120 can clamp the embroidery fabrics E together with the embroidery fabric support table 110. - As shown in the drawing, the surface of the
contact part 125 may be processed to have a surface roughness to generate a larger contact frictional force against the embroidery fabrics E. - Here, the
lever 120 may be formed of a metallic material such as aluminum and stainless steel. Thelever 120 may also be formed of an elastic material. The elastic material may include plastic. - When the
lever 120 is formed of a metallic material, thelever 120 may be coated with an elastic material such as rubber, sponge, and plastic. - The
lever driving part 130 may drive thelevers 120 using one of driving sources such as pneumatic, hydraulic, and electric motors. - The
unit body 140 may include alever support part 150 for supporting thelevers 120. - The lever support
part 150 may be detachably provided to theunit body 140. The lever supportpart 150 may be slidably provided to theunit body 140. - As shown in
FIGS. 2 and4 , thelever support part 150 includes a lever insertion part which thelever 120 is inserted into, alever clamping part 155 for clamping thelever 120 in thelever insertion part 153, and asupport body 151 for supporting thelever insertion part 153. - The
lever insertion part 153 may have aninsertion hole 153a for receiving thelever 120. Thelever 120 inserted into theinsertion hole 153a is clamped by thelever clamping part 155 provided on one side of thelever insertion part 153. Thelever insertion part 153 may be omitted in certain embodiments. More specifically, as shown throughout the attached drawings, thelever 120 is not coupled to thesupport body 151 indirectly while it is inserted in thelever insertion part 153, but may be directly coupled to thesupport body 151 without intervention of thelever insertion part 153. - The
lever 120 may be replaced by unfastening thelever clamping part 155. In other words, thelever 120 is detachably coupled to thelever support part 150. - The
support body 151 may have anopening 151 a for receiving one end of thelever insertion part 153 such that thelever insertion part 153 receiving thelever 120 pivotaly moves between a clamping position C and a release position B that are described later. - The
lever insertion part 153 received in theopening 151 a is pivoted on ahinge 152 in thesupport body 151. - Accordingly, as shown in
FIGS. 5 and6 , thelever 120 inserted into thelever insertion part 153 may apply a pressure to an embroidery fabric E, and may pivot between the clamping position C where the embroidery fabric is clamped and the release position B where the embroidery fabric is unclamped. Thelever 120 may also vertically move instead of pivotaly moving. Also, thelever 120 may vertically slide along a guide rail (not shown). In other words, thelever 120 may slide between the clamping position C where the embroidery fabric is clamped and the release position B where the embroidery fabric is unclamped. - As shown in
FIG. 2 , thesupport body 151 is disposed on theconnection end 111 of the embroidery fabric support table 110. - A coupling hole (not shown) communicating with the joining
hole 146 of theunit body 140 is formed in theconnection end 111 of the embroidery fabric support table 110. Aslot 154 communicating with the joininghole 146 and the coupling hole (not shown) is formed in thesupport body 151. Theunit body 140, thesupport 110, and thesupport body 151 are coupled to each other by the coupling member penetrating the joininghole 146, the coupling hole (not shown), and theslot 154. - Hereinafter, an example of the
lever driving part 130 that drives the lever using a pneumatic pressure will be described in detail. As shown inFIGS. 2 through 5 , thelever driving part 130 includes apneumatic cylinder 132 including anair nipple 131, and apiston 133 supported by thepneumatic cylinder 132 and selectively applying a pressure to thelever 120. - When air is injected through the
air nipple 131, thepiston 133 downwardly moves to apply a pressure to thelever 120 toward the embroidery fabric support table 110. - When air injection through the
air nipple 131 is interrupted, thepiston 133 may enter into an idle state in which a pneumatic pressure is not applied to thelever 120. - As shown in
FIG. 5 , thelever driving part 130 may further include anelastic member 135 that restores thelever 120 to the release position B. When air injection is interrupted, thelever 120 may be restored to the release position B. - As shown in
FIG. 2 , theelastic member 135 is disposed between an elasticmember support piece 134 connected to thesupport body 151 and the end of thelever insertion part 153 penetrating the opening 151 a of thesupport body 151. Theelastic member 135 may apply an elastic force to thelever insertion part 153 to allow thelever 120 to be elastically biased. In certain embodiments, the elastic force may be directly applied to thelever 120. - Here, the
elastic member 135 may be disposed on the opposite side to thepiston 133 across thehinge 152. More specifically, theelastic member 135 may apply an elastic force to the end of thelever insertion part 153 such that thecontact part 125 of thelever 120 pivots toward the release position B. That is, the elastic force F of theelastic member 135 is applied in the direction of the arrow as shown inFIG. 5 . - In certain embodiments, the
elastic member 135 may also be disposed on the side of the piston based on thehinge 152. In this case, the elastic force of theelastic member 135 should be applied in the opposite direction of the elastic force F shown inFIG. 5 . - Also, the
lever driving part 130 may further include a switch (not shown) that can selectively supply air through theair nipple 131. The switch (not shown) may be manually or automatically manipulated. - When a manual manipulation method is adopted, the switch (not shown) may include a mechanical switch.
- The switch (not shown) may be provided as a foot switch (not shown) that is manipulated by a foot such that a user grips the embroidery fabric E by his/her hands and puts the embroidery fabric E between the
lever 120 and the embroidery fabric E. - The foot switch (not shown) may adopt a toggle switching method. That is, when a user steps on the foot switch (not shown) once, air is supplied, whereas, when a user steps on the foot switch once more, air supply is interrupted.
- When an automatic manipulation method is adopted, the
lever driving part 130 includes a sensor (not shown) for sensing whether the embroidery fabric E exists between the embroidery fabric support table 100 and thelever 120, and a controller (not shown) for control the switch (not shown) based on a sensed result of the sensor (not shown). - Here, the switch (not shown) may be disposed between an air tank (not shown) storing air and the
pneumatic cylinder 132. The switch may include an electronic switch (not shown) supplying/interrupting air by receiving an electrical control signal from the controller (not shown). - When the embroidery fabric E exists, the controller (not shown) may control the electronic switch (not shown) to be opened, thereby supplying air to the air nipple 131 (more precisely, to the pneumatic cylinder 132).
- On the other hand, when the embroidery fabric E does not exist, the controller may control the electronic switch to interrupt air supply.
- Here, the controller may be disposed in the embroidery machine 1, and the controller installed in the embroidery machine 1 may automatically sense whether the embroidery
fabric clamping unit 100 for the embroidery machine 1 is disposed on the work table 10. The presence or absence of theclamping unit 100 is automatically sensed by disposing a contact sensor and a photo sensor on a joining part of the work table 10 and theclamping unit 100. - In
FIGS. 1 through 6 , the embroidery fabric support tables 110 and thelevers 120 have been exemplified as disposed in pair, respectively, but embodiments are not limited thereto. - For example, three or more embroidery fabric support tables 110 and
levers 120 may be disposed, respectively. - Also, in certain embodiments, one embroidery fabric support table 110 and two
levers 120 may be disposed. - Accordingly, the numbers and shapes of embroidery fabric support tables 110 and
levers 120 may be modified as long as they can be engaged with each other across the embroidery fabric E to clamp the embroidery fabric E. - As shown in
FIG. 3 , when the embroidery fabric support tables 110 and thelevers 120 are disposed in pair to correspond to each other, respectively, a distance D between each pair of the embroidery fabric support tables 110 and thelevers 120 can be adjusted. - More specifically, as shown in
FIG. 3 , a plurality of the joiningholes 146 by which the embroidery fabric support tables 110 and the levers 120 (thelever support part 150 to be exact) may be disposed in theunit body 140 in the direction of the distance D, and then the embroidery fabric support tables 110 and thelevers 120 may be appropriately located according to the length of an embroidery fabric. Accordingly, the distance D may be adjusted using the coupling member S. - The joining
holes 146 may be disposed at a certain interval in the direction of the distance D. The interval between the joiningholes 146 may also increase as becoming distant from a central line A in the direction of the distance D. This is for fine adjustment of the distance D near the central line A. - The method of adjusting the distance D is merely an example. The method of adjusting the distance D between a pair of embroidery fabric support tables 110 may be modified in various manners.
- Hereinafter, an operation process of the embroidery
fabric clamping unit 100 of the embroidery machine 1 will be described in detail with reference toFIGS. 5 and6 , - First, a user may locate a portion of an embroidery fabric E (e.g., shoes) to be embroidered between the embroidery fabric support table 110 and the
lever 120. - In the case of the above-described manual manipulation method, a user may step on the foot switch (not shown) to supply air to the
pneumatic cylinder 132. Thepiston 133 is projected by a pneumatic pressure to apply a pressure to the lever 120 (precisely, the lever insertion part 153). - Thus, the
lever 120 may pivot from the release position B ofFIG. 5 to the clamping position C where the embroidery fabric E is clamped. - After the clamping, an embroidery command is inputted into the
user input part 50 of the embroidery machine 1 to start embroidering. - When the embroidering is completed, the user may step on the foot switch once again to interrupt the pneumatic pressure, and thus the
lever 120 is restored to the release position B by an elastic force F of theelastic member 153. - Thereafter, the user takes out the embroidery fabric E between embroidery fabric support table 110 and the
lever 120. - Accordingly, since even an embroidery fabric having an arbitrary shape can be automatically embroidered using the embroidery machine 1, the usability of the embroidered machine 1 can significantly increase.
- In the case of the automatic manipulation method, the embroidery
fabric clamping unit 100 of the embroidery machine 1 will be operated as follows. - First, a user interposes a portion of an embroidery fabric E (e.g., shoes) to be embroidered between the embroidery fabric support table 110 and the
lever 120. The sensor (not shown) senses whether the embroidery fabric E is interposed between thelever 120 and the embroidery fabric support table 110, and transmits a sensed result to the controller (not shown). - The controller controls the electronic switch (not shown) to supply air and allow the
piston 133 to apply a pressure to thelever 120. - When embroidering is completed, the controller controls the electronic switch to interrupt air supply. Thus, the
lever 120 is spaced from the embroidery fabric support table 110 by theelastic member 135 to be restored to the release position B. - Thereafter, the user takes out the embroidery fabric E that has been embroidered.
- As shown in
FIG. 7 , an embroidery fabric clamping unit for an embroidery machine according to a second embodiment of the present invention includes: a Y-shaped embroidery fabric support table 110a; and alever 120a having a shape corresponding thereto. Other configuration of the embroidery fabric clamping unit according to the second embodiment of the present invention is similar to that of theclamping unit 100 of the first embodiment. - When the embroidery fabric support table 110a and the
lever 120a have a Y-shape, one pair of embroidery fabric support tables 110 and one pair oflevers 120 shown inFIGS. 1 through 5 may be replaced by the Y-shape of the embroidery fabric support table 110a and thelever 120a. - Here, a distance between a
first branch 115 and asecond branch 117 of the Y-shape embroidery fabric support table 110a may be adjusted. In this case, the distance may be adjusted according to the length of an embroidery fabric to more easily clamp the embroidery fabric. - A distance between a
first branch 126 and asecond branch 127 of thelever 120a may also be adjusted like the embroidery fabric support table 110a. Adjustment of the distance between thefirst branch 126 and thesecond branch 127 of thelever 120a may be performed by installing a rack on at least one of thefirst branch 126 and thesecond branch 127, disposing a pinion engaged with the rack, and then turning the pinion. - The method for adjusting the distance may be similar to a method for adjusting the size of the jaw of an adjustable-end wrench that is a tool for fastening or unfastening bolts or nuts, but embodiments are not limited thereto. Accordingly, various methods may be applied to adjust the distance.
-
FIGS. 8 through 10 illustrate thelever 120 attached with anelastic member 160. - When the
lever 120 applies a pressure to the embroidery fabric support table (110 ofFIG. 5 ), theelastic member 160 itself may be compressed to apply a larger pressure to the embroidery fabric (E ofFIG. 5 ). - The
elastic member 160 includes at least one of sponge, rubber, and plastic. - As shown in
FIG. 9 , anelastic member 160a may have an increasing thickness as it becomes closer to the end of thecontact part 125. Since a gripping force between thelever 120 and the embroidery fabric support table (110 ofFIG. 5 ) may be reduced at the end of thecontact part 125 due to the weight of an embroidery fabric, it may be necessary to complement the elastic force of theelastic member 160a at the end thereof. - As shown in
FIG. 10 ,elastic members contact part 125 of thelever 120. - The modulus of elasticity of the
elastic member 160c closer to the end of thecontact part 125 of thelever 120 is preferably greater than that of theelastic member 160b distant from the end of thecontact part 125. The reason is the same as what is described with reference toFig. 9 . - The embodiments described above are provided for illustration purposes only, and the person skilled in the art would appreciate that various modifications and equivalent embodiments are possible therefrom.
- While the present invention has been described with reference to the particular illustrative embodiment, it is not to be restricted by the above embodiment but only by the appended claims.
Claims (10)
- An embroidery fabric clamping unit for an embroidery machine, comprising:a unit body comprising a joining part detachably disposed on a work table of the embroidery machine;one or more embroidery fabric support tables each coupled to the unit body and supporting an embroidery fabric to be embroidered by the embroidery machine;one or more levers each supported by the unit body and applying a pressure to a corresponding embroidery fabric support table or releasing the pressure from the corresponding embroider fabric support table across the embroidery fabric; anda lever driving part driving the one or more levers.
- The embroidery fabric clamping unit of claim 1, wherein at least one of the one or more embroidery fabric support tables and the one or more levers are provided in plurality.
- The embroidery fabric clamping unit of claim 2, wherein at least one of the one or more embroidery fabric support tables and the one or more levers are provided so that the gaps therebetween are adjustable.
- The embroidery fabric clamping unit of any of claims 1 to 3, the unit body includes a lever support part supporting the one or more levers and detachably coupled to the unit body.
- The embroidery fabric clamping unit of claim 4, the one or more levers are detachably coupled to the lever support part.
- The embroidery fabric clamping unit of any of claims 1 to 3, wherein the one or more levers comprise an elastic material.
- The embroidery fabric clamping unit of any of claims 1 to 3, wherein each of the one or more levers pivotaly move between a clamping position where the embroidery fabric is clamped by pressing the corresponding embroidery fabric on the corresponding embroidery fabric support tables and a release position where the embroidery fabric is unclamped by being spaced from the clamping position.
- The embroidery fabric clamping unit of claim 7, wherein the lever driving part includes: a pneumatic cylinder; a piston supported by the pneumatic cylinder and selectively applying a pressure to the one or more levers; and a foot switch selectively supplying air to the pneumatic cylinder.
- The embroidery fabric clamping unit of claim 7, wherein the lever driving part may further comprise an elastic member allowing the one or more levers to be elastically biased to the release position.
- An embroidery machine, comprising:a work table on which a raw fabric to be embroidered or an embroidery fabric is disposed;an embroidery fabric clamping unit according to any one of claims 1 through 3 detachably mounted on the work table;a raw fabric setting frame for setting the raw fabric; anda needle embroidering the embroidery fabric clamped by the embroidery fabric clamping unit.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020090019199A KR100958157B1 (en) | 2009-03-06 | 2009-03-06 | To-be stitched-object clamping unit for embroidery apparatus and embroidery apparatus including the same |
PCT/KR2010/001383 WO2010101435A2 (en) | 2009-03-06 | 2010-03-05 | Embroidery fabric clamping unit for use with embroidery machine and embroidery machine comprising same |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2405046A2 true EP2405046A2 (en) | 2012-01-11 |
Family
ID=42281758
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10748977A Withdrawn EP2405046A2 (en) | 2009-03-06 | 2010-03-05 | Embroidery fabric clamping unit for use with embroidery machine and embroidery machine comprising same |
Country Status (5)
Country | Link |
---|---|
US (1) | US20110315059A1 (en) |
EP (1) | EP2405046A2 (en) |
KR (1) | KR100958157B1 (en) |
CN (1) | CN102264973B (en) |
WO (1) | WO2010101435A2 (en) |
Cited By (3)
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CN103306071A (en) * | 2013-06-27 | 2013-09-18 | 苏州祺尚纺织有限公司 | Automatic tabouret fixing structure |
CN105671817A (en) * | 2016-03-30 | 2016-06-15 | 爱谱诗(苏州)服装有限公司 | Embroidering frame capable of being automatically aligned and adjusted |
CN106350951A (en) * | 2016-10-30 | 2017-01-25 | 贵州榜香郁苗绣服饰开发有限公司 | Embroidery frame with tightening and smoothing functions |
Families Citing this family (15)
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KR101414191B1 (en) | 2012-09-12 | 2014-07-01 | 주식회사 미싱이야기 | To-be stitched object clamping unit for embroidery machine and embroidery machine including the same |
JP6102569B2 (en) | 2013-06-27 | 2017-03-29 | ブラザー工業株式会社 | Embroidery frame and sewing machine |
JP6155901B2 (en) | 2013-06-27 | 2017-07-05 | ブラザー工業株式会社 | Embroidery frame and sewing machine |
WO2016101019A1 (en) * | 2014-12-23 | 2016-06-30 | Coombes Rex Ian | Adjustable clamping system for a sewing machine |
JP6692179B2 (en) * | 2016-02-23 | 2020-05-13 | Juki株式会社 | Clamp auxiliary device |
CN109162031B (en) * | 2018-11-20 | 2021-10-22 | 广州市恒励丰刺绣科技有限公司 | Embroidery control system |
CN109537200B (en) * | 2018-11-27 | 2024-01-23 | 贵州孃欧桑旅游商品开发有限公司 | Intelligent integrated equipment for manufacturing tin embroidery clothes |
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US11060223B2 (en) * | 2019-11-06 | 2021-07-13 | Efp, Inc. | Textile clamping device for a sewing machine |
JP6982055B2 (en) * | 2019-12-25 | 2021-12-17 | 本田技研工業株式会社 | Sewing equipment |
US11787015B2 (en) * | 2020-05-14 | 2023-10-17 | Melco International Llc | Clamping assembly |
US10895030B1 (en) * | 2020-07-01 | 2021-01-19 | Softwear Automation, Inc. | Palletless sewing methods and systems |
US10889929B1 (en) * | 2020-07-01 | 2021-01-12 | Softwear Automation, Inc. | Adaptive apparatus for transporting and sewing material along arbitrary seam shapes |
CN113774585B (en) * | 2021-09-21 | 2022-08-09 | 晋江市渊源电脑绣花有限公司 | Computer embroidery processing device for shoe upper and processing method thereof |
CN115287834B (en) * | 2022-08-18 | 2024-04-12 | 山东源自然家居用品有限公司 | Pneumatic frame clamping mechanism of embroidery machine |
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- 2010-03-05 CN CN201080003757.6A patent/CN102264973B/en not_active Expired - Fee Related
- 2010-03-05 US US13/141,051 patent/US20110315059A1/en not_active Abandoned
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Cited By (4)
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CN103306071A (en) * | 2013-06-27 | 2013-09-18 | 苏州祺尚纺织有限公司 | Automatic tabouret fixing structure |
CN103306071B (en) * | 2013-06-27 | 2014-12-17 | 苏州祺尚纺织有限公司 | Automatic tabouret fixing structure |
CN105671817A (en) * | 2016-03-30 | 2016-06-15 | 爱谱诗(苏州)服装有限公司 | Embroidering frame capable of being automatically aligned and adjusted |
CN106350951A (en) * | 2016-10-30 | 2017-01-25 | 贵州榜香郁苗绣服饰开发有限公司 | Embroidery frame with tightening and smoothing functions |
Also Published As
Publication number | Publication date |
---|---|
CN102264973A (en) | 2011-11-30 |
WO2010101435A3 (en) | 2010-12-09 |
CN102264973B (en) | 2014-05-28 |
KR100958157B1 (en) | 2010-05-18 |
US20110315059A1 (en) | 2011-12-29 |
WO2010101435A2 (en) | 2010-09-10 |
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