阅读说明：本技术 一种夹布用弹性型材、夹布机构以及绣框 (Elastic profile for cloth clamping, cloth clamping mechanism and embroidery frame ) 是由 陈韦东 陈伟星 于 2021-03-31 设计创作，主要内容包括：本发明涉及绣花机技术领域,具体公开了一种夹布用弹性型材、夹布机构以及绣框。其中所述夹布用弹性型材包括固定壁、衔接壁及夹持壁,所述固定壁上设置有若干沿长度方向排列的连接孔,所述衔接壁与固定壁相对设置且与固定壁之间设置有间隙,所述衔接壁与固定壁通过第一过渡壁连接,所述夹持壁与所述衔接壁远离第一过渡壁的一侧固定连接,所述夹持壁向远离固定壁一侧的方向延伸。本实施例的夹布用弹性型材,固定壁与衔接壁之间设置有间隙,通过第一过渡壁可实现第一处形变弯折,夹持壁通过第二过渡壁可实现第二处形变弯折,与现有技术中,仅通过竖向活动臂实现弯折相比,具有更大的形变范围,且结构简单,夹布用弹性型材的固定方式简单可靠。(The invention relates to the technical field of embroidery machines, and particularly discloses an elastic profile for clamping cloth, a cloth clamping mechanism and an embroidery frame. The elastic profile for clamping the cloth comprises a fixed wall, a connecting wall and a clamping wall, wherein a plurality of connecting holes are formed in the fixed wall and are arrayed along the length direction, the connecting wall is arranged opposite to the fixed wall, a gap is formed between the connecting wall and the fixed wall, the connecting wall is connected with the fixed wall through a first transition wall, the clamping wall is fixedly connected with one side, far away from the first transition wall, of the connecting wall, and the clamping wall extends towards the direction far away from one side of the fixed wall. The elastic profile for clamping cloth of the embodiment is provided with a gap between the fixed wall and the connecting wall, can realize deformation and bending of the first position through the first transition wall, can realize deformation and bending of the second position through the second transition wall through the clamping wall, and compared with the prior art that the elastic profile for clamping cloth is bent only through the vertical movable arm, the elastic profile has a larger deformation range and is simple in structure, and the fixing mode of the elastic profile for clamping cloth is simple and reliable.)

1. An elastic section bar for clamping cloth, which is made of elastic material, is characterized by at least comprising:

the fixing device comprises a fixing wall (2), wherein a plurality of connecting holes (7) which are arranged along the length direction are formed in the fixing wall;

the connecting wall (3) is arranged opposite to the fixed wall, a gap is formed between the connecting wall and the fixed wall, the connecting wall is connected with the fixed wall through a first transition wall (4), and a through hole (8) corresponding to the connecting hole is formed in the connecting wall; and

the clamping wall (1) is fixedly connected with one side, far away from the first transition wall, of the connecting wall, and the clamping wall extends towards the direction far away from one side of the fixing wall.

2. An elastic profile for clamping cloth according to claim 1, characterized in that the through holes correspond to the connecting holes one to one and the diameter of the through holes is larger than that of the connecting holes.

3. Elastic profile for a clip according to claim 1, characterised in that the clamping wall and the abutment wall are connected by a second transition wall (5).

4. Elastic profile for a clip according to claim 3, characterised in that the first (4) and/or the second (5) transition wall is/are curved.

5. An elastic profile for a clip according to any one of claims 1 to 4, characterised in that said elastic material is a metal material having elasticity.

6. An elastic profile for a clip according to any of claims 1 to 4, characterised in that the side of the clip wall remote from the connecting wall is provided with a lengthwise extending squeeze (9).

7. A cloth clamping mechanism comprising at least:

the cloth pressing device comprises a basic frame unit (10), wherein a cloth pressing interval groove (11) which extends along the length direction and is open at the upper part is formed in the basic frame unit, and a cloth supporting body (12) is arranged on one side of the cloth pressing interval groove;

the cloth pressing device comprises an inserting frame unit (20), at least one cloth clamping unit (21) matched with a groove of a cloth pressing zone is arranged on the inserting frame unit, a cloth pressing unit (22) is arranged on one side of the inserting frame unit, and a cloth supporting cavity (23) used for accommodating a cloth supporting body (12) is formed between the cloth pressing unit and the cloth clamping unit;

the cloth clamping device is characterized in that a driving cavity (24) is arranged in the cloth clamping unit, one side of the driving cavity, which is close to the cloth supporting body, is formed by the elastic profile for clamping cloth according to any one of claims 1 to 6, and a driving unit (30) for driving the clamping wall to expand outwards is arranged in the driving cavity.

8. A cloth clamping mechanism according to claim 7, wherein said drive unit is an eccentric rod, and a rotary drive mechanism for driving said eccentric rod to rotate is connected to said eccentric rod.

9. A cloth clamping mechanism according to claim 7, wherein the drive unit is a deformable inflation bladder tube to which a gas or liquid inflation system is connected.

10. An embroidery frame characterized in that at least one pair of side edges of the embroidery frame is constituted by the cloth clamping mechanism according to any one of claims 7 to 9.

Technical Field

The invention relates to the technical field of embroidery machines, in particular to an elastic profile for clamping cloth, a cloth clamping mechanism and an embroidery frame which are applied to an embroidery machine.

Background

The chinese patent publication No. CN108660628A discloses an automatic clamping mechanism, a cloth clamping mechanism, and an embroidery frame, wherein the automatic clamping mechanism includes a base unit and an insertion unit, at least one side wall of an insertion portion of the insertion unit is a hinged wall, and the clamping between the insertion portion of the insertion unit and an insertion groove of the base unit is realized by driving the hinged wall to swing through a pressure filling device, wherein the insertion fit between the insertion portion and the insertion groove has the advantages of simple structure, convenient clamping, and wide application range, and the pressure filling device can realize automatic switching between clamping and releasing states, thereby providing a structural basis for realizing clamping automation.

In the scheme, the swing angle range of the hinged wall is usually small, and the hinged wall can only be suitable for fabrics within a certain thickness range, and the application range of the hinged wall needs to be improved.

Disclosure of Invention

The invention aims to solve the technical problem of providing an elastic section for clamping cloth, a cloth clamping mechanism and an embroidery frame so as to solve the technical defect that the application range of an automatic clamping mechanism in the prior art is limited.

In order to solve the technical problems, the technical scheme provided by the invention is as follows: an elastic profile for clamping cloth, which is made of elastic material and at least comprises:

the fixing wall is provided with a plurality of connecting holes which are arranged along the length direction;

the connecting wall is opposite to the fixed wall, a gap is formed between the connecting wall and the fixed wall, the connecting wall is connected with the fixed wall through a first transition wall, and a through hole corresponding to the connecting hole is formed in the connecting wall; and

the clamping wall is fixedly connected with one side, far away from the first transition wall, of the connecting wall, and the clamping wall extends towards the direction far away from one side of the fixing wall.

In a preferred embodiment, the via holes correspond to the connection holes one to one, and the diameter of the via holes is larger than that of the connection holes.

In a preferred embodiment, the clamping wall and the connecting wall are connected by a second transition wall.

In a preferred embodiment, the first transition wall and/or the second transition wall is/are curved.

In a preferred embodiment, the elastic material is a metal material having elasticity.

In a preferred embodiment, a side of the holding wall remote from the connecting wall is provided with a pressing portion extending in a length direction.

A cloth clamping mechanism comprising at least:

the cloth pressing device comprises a basic frame unit, a cloth pressing device and a cloth conveying device, wherein a cloth pressing interval groove which extends along the length direction and is open at the upper part is arranged on the basic frame unit, and a cloth supporting body is arranged on one side of the cloth pressing interval groove;

the cloth pressing device comprises an inserting frame unit, a cloth pressing unit and a cloth clamping unit, wherein the inserting frame unit at least comprises a cloth clamping unit matched with a groove of a cloth pressing interval, one side of the inserting frame unit is provided with the cloth pressing unit, and a cloth supporting cavity for accommodating a cloth supporting body is formed between the cloth pressing unit and the cloth clamping unit;

the cloth clamping device is characterized in that a driving cavity is arranged in the cloth clamping unit, one side of the driving cavity, which is close to the cloth supporting body, is formed by the elastic sectional material for clamping cloth, and a driving unit used for driving the clamping wall to open outwards is arranged in the driving cavity.

In a preferred embodiment, the driving unit is an eccentric rod, and the eccentric rod is connected with a rotary driving mechanism for driving the eccentric rod to rotate.

In a preferred embodiment, the drive unit is a deformable filling capsule, to which a gas or liquid filling system is connected.

An embroidery frame is characterized in that at least one pair of side edges of the embroidery frame is composed of the cloth clamping mechanism.

Compared with the prior art, the elastic profile for clamping cloth of the embodiment has the advantages that the fixed wall and the connecting wall are provided with the gap, the first transition wall can realize deformation and bending at the first position, the clamping wall can realize deformation and bending at the second position through the second transition wall, and compared with the prior art that the clamping wall only realizes bending through the vertical movable arm, the elastic profile for clamping cloth has a larger deformation range and is simple in structure, and the fixing mode of the elastic profile for clamping cloth is simple and reliable.

Compared with the prior art, the cloth clamping mechanism and the tabouret applying the elastic profile for clamping the cloth have more stable and reliable clamping force and are suitable for fabrics with more thickness specifications.

Drawings

FIG. 1 is a schematic structural view of an elastic section for a fabric insert according to an embodiment I;

FIG. 2 is a schematic bottom perspective view of the elastic section shown in FIG. 1;

FIG. 3 is a schematic cross-sectional view of the elastic profile for a clip cloth shown in FIG. 1;

FIG. 4 is a schematic structural view of the cloth clamping mechanism in an exploded state according to the second embodiment;

FIG. 5 is a schematic structural view of the cloth clamping mechanism shown in FIG. 4 in a cloth clamping state;

FIG. 6 is a schematic structural view of a cloth clamping mechanism according to a third embodiment;

fig. 7 is a schematic structural view of the cloth clamping mechanism according to the fourth embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, integrally connected, or detachably connected; may be communication within two elements; they may be directly connected or indirectly connected through an intermediate, and those skilled in the art will understand the specific meaning of the above terms in the present invention in specific situations.

Example one

As shown in fig. 1 to 3, the elastic section for clamping cloth of the present embodiment is made of an elastic material, preferably a metal material having elasticity, such as spring steel, and a novel synthetic material having certain elasticity and rigidity may be used.

The elastic profile for clamping cloth of the embodiment comprises a fixed wall 2, a connecting wall 3 and a clamping wall 1. Wherein, the fixed wall 2 is provided with a plurality of connecting holes 7 arranged along the length direction, and the connecting holes 7 are used for fixing the elastic section material for clamping the cloth on the tabouret through bolts, screws and the like.

In this embodiment, the engaging wall 3 is disposed opposite to the fixed wall 2 with a gap therebetween, and preferably, the engaging wall 3 is parallel or substantially parallel to the fixed wall 2, and the engaging wall 3 has a length and a width substantially equivalent to those of the fixed wall 2 and is connected to one side in the length direction by a first transition wall 4. Preferably, the first transition wall 4 is curved.

In this embodiment, in order to facilitate the fixing connection of the elastic section for clamping cloth and the embroidery frame, the connecting wall 3 is provided with a through hole 8 corresponding to the position of the connecting hole 7. Preferably, the number of the through holes 8 is the same as the number of the connection holes 7, and the through holes 8 are formed to correspond to one another, and the diameter of each through hole 8 is larger than that of each connection hole 7, so that a bolt or a screw for connection can pass through the through hole 8 smoothly.

In this embodiment, the holding wall 1 is fixedly connected to a side of the connecting wall 3 away from the first transition wall 4, and the holding wall 1 extends in a direction away from a side of the fixing wall 2; preferably, the holding wall 1 is perpendicular or substantially perpendicular to the engaging wall 3 or the fixing wall 2.

In this embodiment, the clamping wall 1 and the connecting wall 3 are connected by a second transition wall 5. Preferably, the second transition wall 5 is curved.

In this embodiment, the free end of the holding wall 1, which is the side away from the connecting wall, is provided with a pressing portion 9 extending in the length direction. Preferably, the pressing portion 9 is formed by crimping the free end portion of the holding wall 1; alternatively, the pressing portion 9 may be a protrusion. The pressing portion 9 is located outside the holding wall 1.

Example two

A cloth clamping mechanism of the present embodiment, as shown in fig. 4 and 5, includes a base frame unit 10 and an insertion frame unit 20. The two side frames or four side frames of the embroidery frame adopting the cloth clamping mechanism of the embodiment are formed by the cloth clamping mechanism of the embodiment.

Wherein, be equipped with along length direction extension and the open compress interval groove 11 in upper portion on the basis frame element 10, this one side of compress interval groove 11 is equipped with cloth supporter 12. Preferably, the cloth support 12 of the present embodiment has a trapezoidal cross section, and a concave area 13 is disposed near the bottom of the pressing interval groove 11.

In this embodiment, the inserting frame unit 20 is located above the base frame unit 10, a cloth clamping unit 21 adapted to the cloth pressing groove 11 is disposed on a lower side of the inserting frame unit 20, a cloth pressing unit 22 is disposed on one side of the inserting frame unit 20, and a cloth supporting cavity 23 for accommodating the cloth supporting body 12 is formed between the cloth pressing unit 22 and the cloth clamping unit 21.

In this embodiment, a driving chamber 24 is disposed inside the cloth clamping unit 21, and a movable arm 25 is disposed on one side of the driving chamber 24 close to the cloth supporting body 12, and a fixed arm 26 is disposed on the other side. The movable arm 25 in this embodiment is made of the elastic material for clamping cloth described in the first embodiment. The fixing wall 2 of the elastic profile for clamping the cloth is fixedly connected with the bottom wall of the inserting frame unit 20 through bolts or screws, the linking wall 3 is positioned above the driving cavity 24, the clamping wall 1 is positioned on one side close to the cloth supporting body 12, and the extruding part 9 is positioned on one side, close to the cloth supporting body 12, of the clamping wall 1 and used for being matched with the concave area 13 to better clamp the cloth.

In this embodiment, a driving unit 30 for driving the clamping wall 1 to deform toward the cloth supporting body 12 to clamp the cloth is disposed in the driving cavity 24. Preferably, the driving unit 30 in this embodiment is an eccentric rod, which may have an oval cross section, a cam cross section, or the like, and drives the clamping wall 1 to expand outward when the eccentric rod rotates a certain angle, such as 90 °. It should be noted that, the rotation driving mechanism for driving the eccentric rod to rotate, in which the eccentric rod is connected, adopts the prior art, such as a motor, and the specific structure is not limited herein.

The cloth clamping mechanism of the embodiment is in a cloth pressing state as shown in fig. 5, the cloth sequentially passes through the cloth pressing unit, the interval between the cloth supporting body and the cloth supporting cavity and the space between the cloth clamping unit and the cloth pressing interval groove, the rotary driving mechanism drives the eccentric rod 40 to rotate 90 degrees to open the two clamping walls and expand the two clamping walls outwards, and after expansion, the outer sides of the clamping walls and the inner sides of the cloth pressing interval groove clamp the cloth tightly.

Of course, the eccentric rod is only a preferred embodiment of this embodiment, and the driving unit can also adopt a deformable filling bag tube in the prior art (for example, chinese patent publication No. CN 108660628A), and the deformable filling bag tube is connected with a gas or liquid filling system, so that the clamping of the cloth is realized through the deformation of the deformable filling bag tube.

EXAMPLE III

The cloth clamping mechanism of this embodiment, as shown in fig. 6, is different from the second embodiment in that the shape of the cloth supporting body 12 is different, and in this embodiment, the cross section of the cloth supporting body 12 is a major arc structure, that is, the central angle corresponding to the circular arc is greater than 180 °.

Example four

As shown in fig. 7, the cloth clamping mechanism of this embodiment is different from the second embodiment in that the elastic profile for clamping cloth described in the first embodiment is used on both sides of the cloth clamping unit 21, and correspondingly, the concave regions 13 are disposed on both sides of the cloth pressing section groove 11 near the groove bottom.

Compared with the embodiment, the cloth clamping mechanism and the embroidery frame formed by the same have the advantages that the clamping effect on the cloth is better, the clamping stability of the cloth is better along with the increase of the tension in the embroidering and embroidering processes, and the cloth clamping mechanism can be suitable for fabrics with more thickness specifications.

In conclusion, the above description is only for the preferred embodiment of the present invention and should not be construed as limiting the present invention, and any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.