CN221192545U - Connector, middle presser foot device and sewing equipment - Google Patents

Abstract

The utility model relates to a connector, a middle-pressure foot device and sewing equipment, wherein the connector comprises a clamping part, the clamping part comprises a first clamping arm and a second clamping arm, one end of the first clamping arm is connected with one end of the second clamping arm, a gap is reserved between the first clamping arm and the second clamping arm, a clamping opening which is matched with a presser foot rod and an opening which is communicated with the clamping opening are reserved between the first clamping arm and the second clamping arm, the first clamping arm is provided with a first lock hole, the second clamping arm is provided with a second lock hole which is matched with the first lock hole, and the first lock hole and the second lock hole are arranged on one side of the clamping opening; this connector can follow the radial realization side direction assembly of presser foot pole for need not to dismantle the needle bar in the assembly process, also need not to change the structure of current needle bar, not only be convenient for the assembly personnel and conveniently, the efficient completion connector with the connection work of presser foot pole, and accomplish the assembly work of middling pressure foot device, connect more firm, stable moreover, be difficult to become flexible, thereby can effectively improve assembly efficiency and the reliability of connection.

Description

Connector, middle presser foot device and sewing equipment

Technical Field

The utility model relates to the technical field of sewing equipment, in particular to a connector, a foot pressing device and sewing equipment.

Background

The sewing equipment can automatically and rapidly sew various materials and patterns under the accurate control of the computer system, so the sewing equipment is widely applied to the sewing production of various quilts, bedspreads, sleeping bags, mattresses, textile ornaments and the like.

The structure of the existing sewing equipment is various, the model is various, the function is also various, and the sewing requirements of different occasions can be met. For example, existing sewing machines (such as a flat sewing machine) and template machines (or pattern machines) are sewing machines with different functions and different purposes, and a presser bar is arranged at a machine head of the sewing machine, and a presser foot is detachably connected to the lower end of the presser bar, but the presser bar cannot follow the needle bar in an actual sewing process. The machine head in the template machine (or the pattern machine) is provided with a middle presser foot rod, the lower end of the middle presser foot rod is detachably connected with a middle presser foot, and the middle presser foot rod can move along with the needle rod in the actual sewing process. In practice, for a user who has purchased a sewing machine, only one template machine (or pattern machine) can be purchased again when the template machine (or pattern machine) is needed, so that the cost is high, and two devices require a larger installation space (such as a factory building), and in some occasions with limited space, the existing sewing machine can only be moved out to install the template machine (or pattern machine). Based on this, a middle presser device is designed, which can be installed on the machine head of the existing sewing machine, so that the middle presser device can be used for providing middle presser functions for the sewing machine (namely, the presser bar can move along with the needle bar), and the sewing machine after the middle presser device is installed is a new sewing device, has the functions of the existing sewing machine, and is beneficial to realizing the functions of a template machine (or a pattern machine). When the device is implemented, the connecting head for connecting the presser bar in the sewing machine is configured in the middle presser bar device, so that the power is transmitted to the presser bar by the connecting head, the purpose of driving the presser bar to follow the needle bar is achieved, but the existing connecting head is not beneficial to conveniently and rapidly connecting the presser bar in the sewing machine, and is also inconvenient to complete assembly work under the condition of not disassembling the presser bar, so that the problem needs to be solved.

Disclosure of Invention

The first aspect of the utility model solves the problem of convenient and quick connection of the presser foot bar, and provides a novel connector which is convenient for assembly personnel to conveniently and efficiently connect the presser foot bar to complete the assembly work of the medium-pressure foot device, and the presser foot bar is not required to be disassembled in the assembly process, and the main conception is that:

A connector comprises a clamping part, wherein the clamping part comprises a first clamping arm and a second clamping arm, one ends of the first clamping arm and the second clamping arm are connected, a gap is reserved between the first clamping arm and the second clamping arm,

A clamping opening which is matched with the presser foot bar and is communicated with the clamping opening is arranged between the first clamping arm and the second clamping arm,

The first arm lock is provided with first lockhole, the second arm lock is provided with the adaptation the second lockhole of first lockhole, and first lockhole and second lockhole set up in the one side of holding mouth. In the scheme, the clamping part is configured, and the first clamping arm and the second clamping arm with one end connected are configured in the clamping part, and a gap is formed between the first clamping arm and the second clamping arm, so that the first clamping arm and the second clamping arm have certain elastic deformation capacity, and the clamping opening is convenient to clamp by the presser foot bar and the presser foot bar is clamped more firmly by utilizing the elastic deformation capacity; the clamping opening of the presser foot bar is matched between the first clamping arm and the second clamping arm, so that the presser foot bar can be clamped more firmly by using the clamping opening, and the clamping opening can be communicated with the outside through the opening, so that the presser foot bar is clamped into the clamping opening along the radial direction of the presser foot bar during assembly, the lateral assembly function is realized, the assembly work can be conveniently, labor-saving and efficient, the presser foot bar does not need to be disassembled during the assembly process, and the structure of the existing presser foot bar does not need to be changed; through configuration first lockhole and the second lockhole of adaptation first lockhole to set up first lockhole and second lockhole in the one side of centre gripping mouth, so that utilize the cooperation locking clamping part or the unblock clamping part of fastener and first lockhole and second lockhole, make when the assembly, especially in the in-process of tightening the fastener, can utilize the fastener to tighten up first arm lock and second arm lock, and can utilize the principle of lever to make the clamping force between first arm lock and the second arm lock bigger, make the connector more firm with the connection of presser foot pole.

Further, the first lock hole and the second lock hole are respectively arranged on one side of the clamping opening, which is away from the opening. The clamping opening is just positioned between the opening and the first lock hole and the second lock hole, so that the first clamping arm and the second clamping arm are locked or unlocked by using a fastener adapting to the first lock hole and the second lock hole, the clamping opening is beneficial to more convenient use, and the connecting head and the presser foot rod are more firmly connected.

In order to simplify the structure, further, the first clamping arm and the second clamping arm are symmetrically arranged. Not only can simplify the structure, but also is beneficial to reducing the cost.

The second aspect of the present utility model is to solve the problem of more convenient and efficient connection of the connector to the presser foot bar, and further, the opening is configured in a horn-like structure. By adopting the design, the opening of the horn-shaped structure can be utilized to guide the clamping opening of the presser foot bar in the process of clamping, so that in the actual assembly process, the presser foot bar can be clamped into the clamping opening only by pushing the connector along the radial direction of the presser foot bar just to the presser foot bar, the lateral assembly is realized, the convenience and the high efficiency are realized, and the labor is saved.

Further, the minimum width of the opening is configured to be smaller than the diameter of the clamping opening, and a neck-down is formed between the opening and the clamping opening. During assembly, the clamping opening can be clamped after the presser bar passes through the necking opening, and the connector can be separated after the presser bar is separated from the necking opening, so that the connector and the presser bar are more firmly connected.

In order to form the clamping opening, further, a first groove is formed in one side, facing the first clamping arm, of the first clamping arm, a second groove is formed in one side, facing the first clamping arm, of the second clamping arm, and the clamping opening is formed between the first groove and the first groove.

For better adaptation presser foot bar, further, first recess is convex recess, the second recess is convex recess. So that the clamping opening with the circular structure is formed by the matching of the first groove and the first groove, thereby being more suitable for the presser foot bar with the circular structure.

Further, the first lock hole is a through hole, the second lock hole is a through hole or a threaded hole, or the first lock hole is a threaded hole, and the second lock hole is a through hole.

The third aspect of the present utility model solves the problem of more firmly connecting the presser foot bar, and further comprises a fastener adapted to the first lock hole and the second lock hole, wherein the fastener is used for locking or unlocking the clamping part. When the clamping device is assembled, the presser foot bar is not required to be disassembled, the presser foot bar is clamped by the clamping part in the connector, and the clamping part is locked by the matching of the fastener and the first lock hole and the second lock hole, so that the clamping part can conveniently and firmly clamp the presser foot bar, the assembly work can be simply and efficiently completed, the connection is firmer, and the loosening is not easy.

The fourth aspect of the present utility model solves the problem, inter alia, of facilitating a rotatable assembly, and further comprises a hinge for the rotatable connection. By configuring the hinge, a rotatable connection is achieved by the hinge, which is more convenient for field assembly.

Preferably, the hinge part is a hinge shaft or a hinge hole.

The utility model provides a well presser foot device, includes casing, first power and the connector, wherein, the casing structure have the first connecting portion of adaptation sewing machine middle casing, first power install in the casing, first power is connected with the connector transmission, and the connector is arranged in connecting the presser foot pole in the sewing machine, and first power is used for driving the connector and goes up and down vertically. In the scheme, a shell is arranged so as to provide a mounting foundation, and a first connecting part is arranged so as to mount the device on the shell of the existing sewing machine; the first power is configured and is in transmission connection with the connector through the first transmission mechanism, so that the connector is driven to vertically lift by the first power; during actual assembly, the connector can be connected with a presser bar in the sewing machine, so that the first power can drive the presser bar to vertically lift or put down through the connector, the presser bar in the sewing machine can be used as a middle presser bar so as to have the function of a middle presser, and the sewing machine is beneficial to having the function of a template machine (or a pattern machine) and is used as the template machine (or the pattern machine).

A sewing device comprises a machine head of a sewing machine, wherein the machine head comprises a machine shell, a needle bar and a presser foot bar, an assembly port is formed at the end part of the machine shell, the sewing device also comprises the middle presser foot device, and the sewing device comprises a sewing machine head body,

The shell is connected with the shell through a fastener adapting to the first connecting part and seals the assembling port,

The presser foot bar is clamped into the clamping opening of the connector through the opening and is clamped on the first clamping arm and the second clamping arm, the lower end of the presser foot bar is provided with a presser foot or a middle presser foot,

The first power is used for driving the middle presser foot to lift or put down. This sewing machine adopts the connector for when the assembly, the presser bar can be through the centre gripping mouth of open card income connector to can press from both sides tightly in first arm lock and second arm lock, realize carrying out the function of assembly along the radial of presser bar, not only assemble more conveniently, more high-efficient, need not to change the structure of current sewing machine aircraft nose moreover, the commonality is stronger, the cost is lower, and this sewing machine after the assembly is accomplished, both has the function of sewing machine, has well presser foot function again, thereby be favorable to realizing the function of template machine (or pattern machine), in practice, not only more satisfy market demand, but also can effectively practice thrift installation space and cost.

Compared with the prior art, the connector, the middle presser foot device and the sewing equipment provided by the utility model can realize lateral assembly along the radial direction of the presser foot bar, so that the needle bar is not required to be disassembled in the assembly process, the structure of the existing needle bar is not required to be changed, the connection work of the connector and the presser foot bar is conveniently and efficiently completed by an assembly staff, the assembly work of the middle presser foot device is completed, the connection is firmer and more stable, and the connection is not easy to loosen, thereby effectively improving the assembly efficiency and the connection reliability.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a connector according to embodiment 1 of the present utility model.

Fig. 2 is a top view of fig. 1.

Fig. 3 is a schematic view of the structure of the connecting head shown in fig. 1 after connecting the presser foot bar of the sewing machine.

Fig. 4 is a partial cross-sectional view of the connector of fig. 1 after clamping the presser foot bar, wherein the fastener is a bolt.

Fig. 5 is a partial cross-sectional view of the connector of fig. 1 after clamping the presser foot bar, wherein the fastener is a bolt pair.

Fig. 6 is a front view of a conventional sewing machine head.

Fig. 7 is a schematic structural diagram of a midfoot apparatus according to embodiment 2 of the present utility model.

Fig. 8 is a schematic view of the middle presser device shown in fig. 7 after connecting the presser bar and mounting the front cover.

Fig. 9 is a front view of a sewing apparatus according to embodiment 3 of the present utility model.

Description of the drawings

Middle presser foot device 1 and middle presser foot 11

The housing 2, the first opening 21, the first connection hole 22

First power 3, crank 31, connecting rod 32, connector 33

Hinge 41, fastener 42

Second power 5, auxiliary compression bar 51, auxiliary presser foot 52

Head 6, casing 61, fitting opening 62, fitting hole 63, needle bar 64, presser foot bar 65, front cover 66 of sewing machine

Clamping part 7, first clamping arm 71, second clamping arm 72, clamping opening 73, opening 74, first lock hole 75, second lock hole 76, first groove 77, second groove 78, necking opening 79

And a hinge hole 8.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present utility model.

Example 1

In this embodiment, a connector 33 is provided, the connector 33 is configured with a clamping portion 7, the clamping portion 7 includes a first clamping arm 71 and a second clamping arm 72, one ends of the first clamping arm 71 and the second clamping arm 72 are connected, and when in implementation, one end of the first clamping arm 71 and one end of the second clamping arm 72 may be directly connected, or the first clamping arm 71 and the second clamping arm 72 may be respectively connected to the connector 33, as shown in fig. 1 and 2, so that the first clamping arm 71 and the second clamping arm 72 are indirectly connected. The other ends of the first and second clamp arms 71 and 72 are not connected, and as shown in fig. 1 and 2, a gap is provided between the first and second clamp arms 71 and 72, so that the first and second clamp arms 71 and 72 have a certain elastic deformation capability.

In the present embodiment, a clamping opening 73 for fitting the presser foot bar 65 and an opening 74 communicating with the clamping opening 73 are provided between the first clamping arm 71 and the second clamping arm 72. In practice, the first clamping arm 71 and the second clamping arm 72 may be symmetrically arranged with respect to each other in order to simplify the structure.

To facilitate forming the clamping port 73, in one embodiment, a side of the first clamping arm 71 facing the first clamping arm 71 is configured with a first groove 77, as shown in fig. 1 and 2, and a side of the second clamping arm 72 facing the first clamping arm 71 is configured with a second groove 78, as shown in fig. 1 and 2, where the first groove 77 corresponds to the second groove 78, such that the first groove 77 and the first groove 77 may form the clamping port 73. The shape of the clamping port 73 is adapted to the shape of the presser foot bar 65. In a preferred embodiment, as shown in fig. 1-3, the first recess 77 may be configured as a circular arc recess, while the second recess 78 may also be configured as a circular arc recess, so that the circular structure clamping port 73 is formed by the cooperation of the first recess 77 and the first recess 77, so as to better fit the presser foot bar 65 of circular structure. In practice, the inner diameter of the clamping opening 73 may be preferentially equal to the outer diameter of the presser foot bar 65 in order to better cradle the presser foot bar 65. Of course, in practice, the inner diameter of the clamping port 73 may be greater or less than the outer diameter of the presser foot bar 65.

In this embodiment, the configuration of the opening 74 allows the clamping opening 73 to be communicated with the outside through the opening 74, so that when in assembly, the connector 33 is pushed along the radial direction of the presser foot bar 65 through the opening 74, so that the connector 33 moves along the radial direction of the presser foot bar 65, and the presser foot bar 65 can be smoothly clamped into the clamping opening 73, thereby realizing the lateral assembly function, and being very convenient. In practice, the opening 74 may be preferably configured as a horn structure, as shown in fig. 1 and 2, that is, the width of the opening 74 gradually decreases along the direction close to the clamping opening 73, as shown in fig. 1-3, and by adopting such a design, on one hand, the opening 74 with the horn structure may be utilized to guide the process of clamping the presser foot rod 65 into the clamping opening 73, so that in the actual assembly process, only the opening 74 is just opposite to the presser foot rod 65, and then the presser foot rod 65 can be clamped into the clamping opening 73 by pushing the connector 33 along the radial direction of the presser foot rod 65, so as to realize lateral assembly, which is convenient, efficient and more labor-saving. On the other hand, in practice, the minimum width of the opening 74 may be configured to be smaller than the diameter of the clamping opening 73, as shown in fig. 1 and 2, so as to form a neck-shaped opening 79 between the opening 74 and the clamping opening 73, and during assembly, the presser foot bar 65 can be clamped into the clamping opening 73 only after passing through the neck-shaped opening 79, and for the presser foot bar 65 in the clamping opening 73, the presser foot bar 65 can be separated from the connecting head 33 only after being separated from the neck-shaped opening 79, so that the connection between the connecting head 33 and the presser foot bar 65 is facilitated to be more secure.

As shown in fig. 1 to 3, in the present embodiment, the first clamping arm 71 is further provided with a first locking hole 75, meanwhile, the second clamping arm 72 is further provided with a second locking hole 76 adapted to the first locking hole 75, in implementation, the first locking hole 75 corresponds to the second locking hole 76, and the first locking hole 75 and the second locking hole 76 are disposed at one side of the clamping opening 73. The clamping portion 7 can be locked or unlocked during assembly by means of the fastener 42 fitting the first locking hole 75 and the second locking hole 76. When the assembly is carried out, the presser foot bar 65 is not required to be disassembled, the presser foot bar 65 is only required to be clamped by the clamping part 7 in the connector 33, and the clamping part 7 is locked by the matching of the fastener 42, the first lock hole 75 and the second lock hole 76, so that the clamping part 7 can conveniently and firmly clamp the presser foot bar 65, the assembly work can be simply and efficiently completed, the connection is firmer, and the looseness is not easy to occur. Of course, when the fastening piece 42 is loosened, the clamping portion 7 can be unlocked, so that the connector 33 and the presser foot bar 65 can be conveniently disassembled.

In practice, the first locking hole 75 and the second locking hole 76 may be provided outside the opening 74, respectively, so as to lock the first clamping arm 71 and the second clamping arm 72. In the preferred embodiment provided in this embodiment, the first lock hole 75 and the second lock hole 76 are respectively disposed at one side of the clamping opening 73 away from the opening 74, as shown in fig. 1-3, at this time, the first lock hole 75 and the second lock hole 76 are just located between the clamping opening 73 and the connection ends of the first clamping arm 71 and the second clamping arm 72, and the clamping opening 73 is just located between the opening 74 and the first lock hole 75 and the second lock hole 76, so that the first clamping arm 71 and the second clamping arm 72 are tightened by using the principle of a lever, and the purpose of locking and unlocking the first clamping arm 71 and the second clamping arm 72 is achieved, so that the first clamping arm 71 and the second clamping arm 72 can be firmly held tightly against the foot bar 65, and the purpose of firmly connecting the foot bar 65 is achieved.

In implementation, the fastener 42 and the first lock hole 75 and the second lock hole 76 may have various embodiments, for example, the first lock hole 75 may be a through hole, and the second lock hole 76 may also be a through hole, where, as shown in fig. 5, the fastener 42 is a bolt pair (bolt and nut) that is adapted to the through hole, and a bolt in the bolt pair may sequentially pass through two through holes and be in threaded connection with the nut, so as to lock the first clamping arm 71 and the second clamping arm 72. As another example, as shown in fig. 4, the first locking hole 75 may be a through hole, and the second locking hole 76 may be a threaded hole, where the fastener 42 may be a bolt that is matched with the threaded hole, and the bolt passes through the through hole and is screwed with the threaded hole, so as to lock the first clamping arm 71 and the second clamping arm 72. For another example, the first lock hole 75 is a threaded hole, and the second lock hole 76 is a through hole, which can achieve the same effect, and will not be described herein.

In a further embodiment, the present connector 33 further comprises a hinge portion for rotatable connection, so that the rotatable connection is realized by the hinge portion, and the rotatable connection of the present connector 33 in the midfoot device is facilitated. In practice, the hinge may be a hinge shaft or a hinge hole 8 to achieve a rotatable connection in the midfoot device. As an example, as shown in fig. 1 and 3, the hinge portion adopts a hinge hole 8, the hinge hole 8 may penetrate through the first clip arm 71 and the second clip arm 72, and the hinge hole 8 is disposed at one end where the first clip arm 71 and the second clip arm 72 are connected to each other. In practice, the central axis of the hinge is preferably perpendicular to the central axis of the clamping opening 73. For example, as shown in fig. 1-3, the central axis of the hinge hole 8 is perpendicular to the central axis of the clamping opening 73, so that the presser foot bar 65 is driven to lift and descend by the connector 33.

Example 2

The present embodiment provides a midfoot press device 1, comprising a housing 2, a first power 3, and a connector 33 as described in embodiment 1, wherein,

As shown in fig. 7, a first opening 21 is formed at one side of the housing 2, a first connection portion adapted to the housing 61 of the sewing machine is formed in the circumferential direction of the first opening 21, the first connection portion may include a plurality of first connection holes, which may be through holes or screw holes, the number and position of the first connection holes are adapted to the fitting holes 63 of the end portion of the housing 61 of the sewing machine head 6, for example, when the fitting holes 63 are screw holes, the first connection holes are through holes adapted to screw holes, so that screw connection is achieved with the screw holes through the through holes by bolts, thereby fixing the housing 2 of the present midfoot press device 1 to the housing 61 of the sewing machine. In one embodiment, the side of the housing 2 facing away from the first connection is either closed, as shown in fig. 7. In another embodiment, a second opening is formed in one side of the casing 2 facing away from the first connecting portion, the second opening is communicated with the first opening, a second connecting portion for connecting the front cover 66 of the sewing machine is formed in the circumferential direction of the second opening, the second connecting portion includes a plurality of second connecting holes, each second connecting hole corresponds to each first connecting hole, and each second connecting hole is matched with a through hole on the front cover 66, so that the front cover 66 of the sewing machine is mounted on one side of the casing 2, as shown in fig. 8.

In this embodiment, the first power 3 is installed on the housing 2, the first power 3 is in transmission connection with the connector 33, and the first power 3 is mainly used for driving the connector 33 to vertically lift. In implementation, the first power 3 may preferably be a motor, and of course, an air cylinder, a hydraulic cylinder, or the like may also be used. In practice, the first power 3 may be in driving connection with the connector 33 through a driving mechanism, and the driving mechanism may include a crank 31 and a link 32, as shown in fig. 7, for example, where one end of the crank 31 is fixedly connected to an output shaft of the motor, one end of the link 32 is rotatably connected to the crank 31, the other end of the link 32 is rotatably connected to the connector 33 through a hinge 41, and the connector 33 is fixedly connected to the presser foot bar 65, so that the first power may drive the connector 33 and the presser foot bar 65 to lift or lower in a vertical direction.

To enable the sewing machine to have the function of the auxiliary presser foot 52, in a further embodiment, the middle presser foot device 1 further comprises an auxiliary presser foot module, as shown in fig. 7, the auxiliary presser foot module comprises a second power 5, an auxiliary pressing rod 51 and an auxiliary presser foot 52, wherein the second power 5 is mounted on the shell 2, the auxiliary pressing rod 51 is vertically restrained on the shell 2 in a movable mode, the lower end of the auxiliary pressing rod 51 extends out of the shell 2, the auxiliary presser foot 52 is mounted on the lower end of the auxiliary pressing rod 51, as shown in fig. 7, and meanwhile, the second power 5 is in transmission connection with the auxiliary pressing rod 51 and is used for driving the auxiliary presser foot 52 to vertically lift or put down. In practice, the second power 5 may be preferably an air cylinder, or of course, a hydraulic cylinder, an electric cylinder, or the like may be used to lift and lower the auxiliary presser foot 52 by using the expansion and contraction of the second power 5. Thereby enabling the device to function as an auxiliary presser foot 52. When the device is installed on the sewing machine, the sewing machine also has the auxiliary presser foot 52 function, thereby being beneficial to realizing the function of a template machine (or a pattern machine) on the sewing machine.

In a more sophisticated version, the midfoot apparatus 1 further comprises a first controller electrically connected to the first power 3 and the second power 5 for controlling the presser bar 65 and the auxiliary presser bar 51. In practice, the first controller may be a controller in a template machine or a controller in a pattern machine, and is configured with a corresponding system (algorithm) to implement a corresponding sewing function.

Example 3

This embodiment 3 provides a sewing apparatus comprising a head 6 of a sewing machine and the midfoot apparatus 1 described in embodiment 2, wherein,

As shown in fig. 6, the conventional handpiece 6 includes a motor, a spindle, a housing 61, a front cover 66, a needle bar 64, a presser foot bar 65, and a second controller, the end of the housing 61 is configured with a fitting port 62, the circumferential direction of the fitting port 62 is configured with a plurality of fitting holes 63, the fitting holes 63 are typically screw holes, the front cover 66 is configured with through holes for fitting the respective fitting holes 63, and the front cover 66 is typically fixed to the housing 61 by fasteners 42 (bolts or screws, etc.) for fitting the fitting holes 63. The motor is in transmission connection with the main shaft, the main shaft is in transmission connection with the needle bar 64, the motor is electrically connected with the second controller, the motor is provided with an encoder, the encoder is electrically connected with the second controller so as to feed back the state of the main shaft to the second controller, meanwhile, the second controller is also provided with a pedal port, and parameters such as the sewing speed of the sewing machine are input into the second controller through the pedal port.

In the present embodiment, the first controller in the medium presser device 1 is electrically connected to the encoder so as to acquire the state of the main shaft from the encoder, and at the same time, the first controller in the medium presser device 1 is electrically connected to the foot pedal port so as to generate a control signal to the head 6 of the wind sewing machine through the foot pedal port.

When implementing, this sewing machine still includes the brace table and sets up in the XY module of brace table, and the press frame is installed to the XY module, and sewing machine's aircraft nose 6 can install in the brace table, well presser foot device 1 installs in sewing machine's aircraft nose 6. In implementation, the XY module may be an XY module in an existing template machine (or a pattern machine), and the XY module is electrically connected with the first controller, so that the first controller is used to control the XY module, the presser bar 65 and the needle bar 64 to cooperatively cooperate, so that the sewing apparatus has the function of a middle presser foot.

When in assembly, the front cover 66 on the machine head 6 in the sewing machine is firstly disassembled, so that the assembly holes 63 on the machine head 6 constructed on the machine shell 61 are exposed; then the connector 33 in the middle presser foot device 1 is clamped into the presser foot bar 65 from the lateral direction (radial direction) of the presser foot bar 65, and the clamping part 7 of the connector 33 is locked by the fastener 42 which is matched with the first lock hole 75 and the second lock hole 76, as shown in fig. 8, so that the assembly work of the connector 33 can be completed quickly, and the presser foot bar 65 in the sewing machine can be driven to be lifted or put down (namely, up-down action) by the first power 3; then the fastening piece 42 of the first connecting part in the adapting shell 2 is used for connecting the assembling hole 63 on the sewing machine shell 61, so that the shell 2 in the middle presser device 1 can be fixed on the sewing machine shell 61; the front cover 66 is then fixed to the other side of the housing 2 by means of the fastener 42 fitted to the second connecting portion of the housing 2, so that the housing 2 in the middle presser foot device 1 can be closed, thereby efficiently completing the assembly work, as shown in fig. 9.

When in use, the sewing device has the function of the existing sewing machine, and can be used as the sewing machine, and at the moment, the lower end of the presser foot bar 65 can be provided with a presser foot commonly used in the existing sewing machine. Meanwhile, the sewing equipment also has the function of the existing template machine (or pattern machine), and can be used as the template machine (or pattern machine), and at the moment, the lower end of the presser foot rod 65 can be provided with the existing middle presser foot 11.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model.

Claims (10)

1. A connector is characterized by comprising a clamping part, wherein the clamping part comprises a first clamping arm and a second clamping arm, one ends of the first clamping arm and the second clamping arm are connected, a gap is reserved between the first clamping arm and the second clamping arm,

A clamping opening which is matched with the presser foot bar and is communicated with the clamping opening is arranged between the first clamping arm and the second clamping arm,

The first arm lock is provided with first lockhole, the second arm lock is provided with the adaptation the second lockhole of first lockhole, and first lockhole and second lockhole set up in the one side of holding mouth.

2. The connector of claim 1, wherein the first locking hole and the second locking hole are respectively disposed at a side of the clamping opening away from the opening.

3. The connector of claim 1, wherein the opening is configured as a horn-like structure.

4. The connector of claim 1, wherein the minimum width of the opening is configured to be less than the diameter of the clamping opening, and a neck finish is formed between the opening and the clamping opening.

5. The connector of claim 1, wherein a side of the first clamping arm facing the first clamping arm is configured with a first groove, a side of the second clamping arm facing the first clamping arm is configured with a second groove, and the clamping opening is formed between the first groove and the first groove.

6. The connector of claim 5, wherein the first groove is a circular arc groove and the second groove is a circular arc groove;

and/or, the first clamping arm and the second clamping arm are symmetrically arranged with each other;

and/or the first lock hole is a through hole, and the second lock hole is a through hole or a threaded hole.

7. The connector of any one of claims 1-6, further comprising a fastener for mating the first and second locking holes, the fastener for locking or unlocking the clamp;

And/or, further comprising a hinge part for rotatable connection, wherein the hinge part is a hinge shaft or a hinge hole.

8. The middle presser foot device is characterized by comprising a shell, first power and the connector of any one of claims 1-7, wherein the shell is provided with a first connecting part which is matched with a shell in a sewing machine, the first power is arranged on the shell and is in transmission connection with the connector, the connector is used for connecting a presser foot bar in the sewing machine, and the first power is used for driving the connector to vertically lift.

9. The midfoot press device of claim 8, further comprising an auxiliary presser foot module, the auxiliary presser foot module comprising a second power, an auxiliary presser bar and an auxiliary presser foot, the second power being mounted to the housing, the auxiliary presser bar being movably vertically constrained to the housing, and a lower end of the auxiliary presser bar extending out of the housing, the auxiliary presser foot being mounted to a lower end of the auxiliary presser bar, the second power being in driving connection with the auxiliary presser bar for driving the auxiliary presser foot to lift or lower.

10. Sewing equipment comprising a head of a sewing machine, said head comprising a casing, a needle bar and a presser bar, the end of the casing being configured with an assembly opening, characterized in that it further comprises a midfoot device according to any one of claims 8-9, wherein,

The shell is connected with the shell through a fastener adapting to the first connecting part and seals the assembling port,

The presser foot bar is clamped into the clamping opening of the connector through the opening, the connector is clamped on the first clamping arm and the second clamping arm through the fastener, the lower end of the presser foot bar is provided with a presser foot or a middle presser foot,

The first power is used for driving the middle presser foot to lift or put down.