CN217174146U - Fiber cloth strip clamping and receiving mechanism - Google Patents

Abstract

The utility model relates to a tight receiving mechanism of fibre cloth clamp, hold in the palm including mounting substrate, L shape and lean on piece, Z shape transition piece, holding down plate, first drive division, second drive division and the supplementary portion of maintaining of gesture. The mounting substrate is driven by a first driving unit. The L-shaped support part is fixed with the mounting substrate into a whole through the Z-shaped transition part. The lower pressing plate is arranged right above the L-shaped supporting piece and is always parallel to the mounting substrate. The lower pressing plate moves towards the L-shaped supporting piece under the action of the driving force of the second driving part to perform displacement motion so as to press the fiber cloth strips, the posture auxiliary maintaining part acts to apply a dragging force to the rear end part of the L-shaped supporting piece, so that the jaw is always maintained in a fully closed state, the phenomenon of downward interference caused by the self weight of the L-shaped supporting piece and the downward pressure can be effectively avoided, the jaw formed between the L-shaped supporting piece and the lower pressing plate is ensured to have good regularity, and the fiber cloth strips fed in the same batch are further ensured to be reliably pressed.

Description

Fiber cloth strip clamping and receiving mechanism

Technical Field

The utility model belongs to the technical field of the spinning machine equipment manufacturing technique and specifically relates to a tight receiving mechanism of fibre cloth clamp.

Background

The carbon fiber is a novel material with the carbon content of more than 95 percent and has the characteristics of high strength and high modulus. The carbon fiber is formed by stacking organic fibers such as flake graphite microcrystals along the axial direction of the fiber, and the microcrystalline graphite material obtained by carbonization and graphitization treatment not only has the intrinsic characteristics of a carbon material, but also has the soft processability of textile fiber.

The fiber cloth is woven by carbon fibers, and the production process is as follows: the method comprises the steps of flattening a carbon fiber bundle into flat-laid monofilament carbon fibers by a yarn spreading machine, then bonding and forming into a fiber cloth strip by glue, then performing weft laying operation on the fiber cloth strip by a weft laying machine, and then performing warp and weft cross weaving operation on the weft-laid fiber cloth strip by a warp knitting machine to finally form the fiber cloth.

In the actual working process of the weft laying machine, the fiber cloth strips to be cut are pulled by the weft pulling mechanism to sequentially pass through the fiber cloth strip cutting mechanism, the left feeding mechanism and the right feeding mechanism. The fiber cloth strip cutting mechanism cuts off the tensioned fiber cloth strips, then the left feeding mechanism and the right feeding mechanism synchronously act to carry out weft laying operation on the tensioned fiber cloth strips, at the moment, two ends of the fiber cloth strips are respectively pressed and fixed into the left weft laying mechanism and the right weft laying mechanism, and the left weft laying mechanism and the right weft laying mechanism carry out synchronous displacement motion to send the weft laying fiber cloth strips into the warp knitting machine to carry out warp and weft knitting operation.

The fiber cloth strip cutting mechanisms are all matched with fiber cloth strip clamping and receiving mechanisms to ensure that the fiber cloth strips are always kept in a tensioning state when the fiber cloth strips are formally cut off. According to the design form of the existing fiber cloth strip clamping and receiving mechanism, the fiber cloth strip clamping and receiving mechanism mainly comprises an L-shaped supporting piece, a lower pressing plate, a driving part and the like. The L-shaped supporting piece is matched with the lower pressing plate for application so as to clamp the fiber cloth strips under the synergistic action. A jaw for the fiber cloth strip to penetrate is formed between the L-shaped supporting piece and the lower pressing plate. The jaws are gradually enlarged or closed along with the advancing of the working process of the driving part, so that the clamping of the fiber cloth strip is realized or released. However, in practical applications, the fiber cloth strip cutting mechanism is found to have the following serious problems, specifically: because the L-shaped supporting piece is fixed only by one end, and the other end of the L-shaped supporting piece is in a suspended state, the downward interference phenomenon is easily caused under the combined action of the self gravity and the downward pressure from the lower pressing plate, so that the regularity of the jaw formed between the L-shaped supporting piece and the lower pressing plate is extremely poor (the opening value of the formed jaw is different in size, and the opening value shows a gradual expansion trend along the direction from the fixed end to the suspended end), and further, a part of the fiber cloth strips fed in the same batch cannot be effectively compressed, the forming length and the size of the fiber cloth strip section are finally deviated, and the regularity of the cut formed on the fiber cloth strip section is also influenced. Thus, a skilled person is urgently needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

Therefore, in view of the above-mentioned existing problems and drawbacks, the present invention provides a clamping and receiving mechanism for fiber cloth strips, which is designed by collecting relevant information, evaluating and considering in multiple ways, and continuously performing experiments and modifications by technical personnel engaged in research and development in this industry for many years.

In order to solve the technical problem, the utility model relates to a tight receiving mechanism of fibre cloth clamp with press material unit and cutting unit to match and use to make the fibre cloth maintain in tensioning state before being cut off. The fiber cloth strip clamping and receiving mechanism comprises a mounting base plate, an L-shaped supporting piece, a Z-shaped transition piece, a lower pressing plate, a first driving part and a second driving part. The mounting substrate is borne by the framework of the weft laying machine, and can perform displacement motion along the front-back direction and the up-down direction under the action of the driving force of the first driving part. The front end part of the L-shaped support part is detachably fixed with the mounting substrate into a whole through the Z-shaped transition part. The lower pressing plate is arranged right above the L-shaped supporting piece and is always parallel to the mounting substrate. The L-shaped supporting piece and the lower pressing plate jointly form a jaw for the tensioned fiber cloth to penetrate through. The second driving unit is borne by the mounting substrate. Under the working state, the fiber cloth strip clamping and receiving mechanism and the pressing unit are opposite, and the second driving part acts to drive the lower pressing plate to move oppositely/reversely to the L-shaped supporting piece to close/open the jaw, so that the compression of the fiber cloth strip to be cut in a tensioning state is realized/released. The fiber cloth strip clamping and receiving mechanism further comprises an attitude auxiliary maintaining part. And in the process that the lower pressing plate performs displacement movement relative to the L-shaped supporting piece under the action of the driving force of the second driving part so as to press the fiber cloth strips, the posture auxiliary maintaining part acts to apply a dragging force to the rear end part of the L-shaped supporting piece so that the jaw is always maintained in a fully closed state.

As the utility model discloses technical scheme's further improvement, the supplementary portion of maintaining of gesture hangs arm, transition transmission arm, mount pad, first hinge, second hinge, third hinge and third drive division including the yaw hook. The deflection hook arm is hinged with the lower press plate by a first hinge shaft. The third driving part is used for driving the mounting seat and is borne by the lower pressing plate. The two end parts of the transitional transmission arm are respectively hinged with the mounting seat and the deflection hook arm by virtue of the second hinge shaft and the third hinge shaft in a one-to-one correspondence manner. The mounting seat performs displacement motion along the vertical direction under the action of the driving force of the third driving part, and meanwhile, the deflection hook hanging arm performs circumferential deflection motion around the first hinge shaft under the action of the dragging force of the transitional transmission arm so as to realize/release hooking of the rear end part of the L-shaped supporting part.

As a further improvement of the technical scheme of the utility model, the attitude auxiliary maintaining part further comprises an installation transition plate. The transition plate is installed to directly bear the third driving part, which is detachably fixed to the lower pressing plate.

As a further improvement of the technical proposal of the utility model, the L-shaped support is extended forward to the rear side wall of the leaning piece to form a hook notch for the deflection hook arm to execute the hook operation.

As a further improvement of the technical proposal of the utility model, the top wall of the hook gap is arc-shaped. The deflection hook arm is obliquely cut to form an arc-shaped press-contact surface matched with the top wall of the hook notch.

As the utility model discloses technical scheme's further improvement, third drive division preferred is cylinder, pneumatic cylinder or linear electric motor.

As a further improvement of the technical proposal of the utility model, the L-shaped top wall of the support leaning piece extends downwards to form a trapezoidal friction-increasing groove. The bottom wall of the lower pressing plate extends downwards to form a trapezoidal friction increasing bulge matched with the trapezoidal friction increasing groove. The trapezoidal friction increasing grooves and the trapezoidal friction increasing protrusions are cooperated to compress the fiber cloth strips.

Compare in the tight receiving mechanism of fibre cloth clamp of traditional project organization the utility model discloses an among the technical scheme, it has been added with the supplementary portion of maintaining of gesture. In the process that the lower pressing plate moves in a displacement mode relative to the L-shaped supporting piece to compress the fiber cloth strips, the posture auxiliary maintaining part always applies a dragging force to the suspended end of the L-shaped supporting piece to avoid the occurrence of a downward disturbance phenomenon caused by the self weight of the L-shaped supporting piece and the downward pressure, and a jaw formed between the L-shaped supporting piece and the lower pressing plate is ensured to have good regularity, namely the opening value of the jaw is always constant along the width direction of the L-shaped supporting piece, so that the fiber cloth strips fed in the same batch are effectively ensured to be reliably compressed, and the fiber cloth strip sections cut and formed in the same batch have the same length and the end cut forming regularity is good, thereby providing a good cushion for the high-quality weaving of subsequent fiber cloth.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a state diagram of the middle fiber cloth strip clamping and receiving mechanism in the application of matching with the pressing unit and the cutting unit.

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

Fig. 3 is a schematic perspective view of a viewing angle of the middle fiber cloth clamping receiving mechanism of the present invention.

Fig. 4 is a schematic perspective view of another viewing angle of the fiber cloth clamping receiving mechanism of the present invention.

Fig. 5 is an enlarged view of part I of fig. 4.

Fig. 6 is a schematic perspective view of an L-shaped supporting member in the fiber cloth strip clamping and receiving mechanism of the present invention.

Fig. 7 is a partial enlarged view II of fig. 6.

Fig. 8 is a schematic perspective view of a lower pressing plate in the fiber cloth clamping receiving mechanism of the present invention.

Fig. 9 is a partially enlarged view III of fig. 8.

Fig. 10 is a schematic perspective view of a deflection hook hanging arm in the fiber cloth strip clamping receiving mechanism of the present invention.

1-a mounting substrate; 2-L-shaped support members; 21-a hook notch; 22-trapezoidal friction-increasing grooves; 3-a Z-shaped transition piece; 4, pressing a lower plate; 41-trapezoidal friction-increasing protrusions; 5-a first drive section; 6-a second drive section; 7-posture auxiliary maintaining part; 71-a yaw hook hanging arm; 711-arc press-contact surface; 72-a transitional transfer arm; 73-a mounting seat; 74-a first hinge shaft; 75-a second hinge shaft; 76-a third hinge shaft; 77-a third drive section; 78-mounting a transition plate.

Detailed Description

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

Fig. 1 and fig. 2 respectively show the state schematic diagram and the front view of the middle fiber cloth strip clamping receiving mechanism in the matched application with the material pressing unit and the cutting unit. Before the cutting-off operation is formally executed in advance, the weft pulling mechanism pulls the fiber cloth strips released by the fiber cloth strip feeding system to sequentially cross the pressing unit and the fiber cloth strip clamping and receiving mechanism, then the pressing unit and the fiber cloth strip clamping and receiving mechanism cooperatively act to clamp the fiber cloth strips, so that the fiber cloth strips are maintained in a tensioning state, and then the cutting unit acts in a gap formed between the fiber cloth strip clamping and receiving mechanism and the pressing unit to execute linear displacement motion to finish the cutting action.

Fig. 3 and 4 respectively show a schematic perspective view of two different viewing angles of the middle fiber cloth clamping and receiving mechanism of the present invention, and it can be seen that the middle fiber cloth clamping and receiving mechanism mainly comprises a mounting substrate 1, an L-shaped supporting member 2, a Z-shaped transition member 3, a lower pressing plate 4, a first driving portion 5, a second driving portion 6, and the like. Wherein the mounting substrate 1 is borne by the framework of the weft laying machine and can perform displacement motion along the front-back direction and the up-down direction under the action of the driving force of the first driving part 5. The front end of the L-shaped holder 2 is detachably fixed to the mounting board 1 by a Z-shaped transition member 3. The lower pressing plate 4 is arranged right above the L-shaped support member 2 and is always parallel to the mounting substrate 1. The L-shaped support member 2 and the lower pressing plate 4 together form a jaw for the fiber cloth in a tension state to penetrate. The second driving unit 6 is borne by the mounting board 1. Under the working state, the fiber cloth strip clamping and receiving mechanism and the pressing unit are opposite, and the second driving part 6 acts to drive the lower pressing plate 4 to move oppositely or back to the L-shaped supporting part 2 to close or open the jaw, so that the fiber cloth strip in the tensioning state to be cut is pressed tightly or released.

As can also be seen from fig. 3 and 4, in the present application, the fiber cloth strip clamping and receiving mechanism is further provided with an attitude auxiliary maintaining part 7. In the process that the lower pressing plate 4 performs displacement movement relative to the L-shaped supporting piece 2 under the action of the driving force of the second driving part 6 so as to press the fiber cloth strips, the posture auxiliary maintaining part 7 acts to apply dragging force to the rear end part of the L-shaped supporting piece 2, so that the jaw is always maintained in a fully closed state.

In the process that the lower pressing plate 4 performs displacement movement relative to the L-shaped supporting piece 2 to perform pressing operation on the fiber cloth strips, the posture auxiliary maintaining part 7 always applies dragging force to the suspended end of the L-shaped supporting piece 2 so as to avoid the occurrence of downward disturbance caused by the self weight of the L-shaped supporting piece 2 and the downward pressure from the lower pressing plate 4, and ensure that jaws formed between the L-shaped supporting piece 2 and the lower pressing plate 4 have good regularity, namely that the opening value of the jaws is always constant along the width direction of the L-shaped supporting piece 2, so that the fiber cloth strips fed in the same batch are effectively ensured to be reliably pressed, and the fiber cloth strip sections cut and formed in the same batch have the same length, and the forming regularity of the end cuts is good, thereby making good bedding for high-quality weaving of subsequent fiber cloth.

As one configuration, as shown in fig. 5, the posture assistance maintaining unit 7 is preferably mainly composed of a yaw hook arm 71, a transition transmission arm 72, a mount 73, a first hinge shaft 74, a second hinge shaft 75, a third hinge shaft 76, a third driving unit 77, and the like. The swing hook arm 71 is hinged to the lower platen 4 by a first hinge shaft 74. The third driving portion 77 is used to drive the mounting base 73 and is borne by the lower platen 4. The two ends of the transitional transmission arm 72 are respectively hinged to the mounting base 73 and the swing hook arm 71 by the second hinge shaft 75 and the third hinge shaft 76 in a one-to-one correspondence manner. The mount 73 performs a displacement movement in the up-down direction by the driving force of the third driving portion 77, and at the same time, the swing hook arm 71 performs a circumferential swing movement around the first hinge shaft 74 by the dragging force of the transitional transmission arm 71 to hook/unhook the rear end portion (i.e., the free end) of the L-shaped holder 2.

In the process of cutting the fiber cloth strip, after the fiber cloth strip is fed into the jaw formed between the L-shaped support member 2 and the lower pressing plate 4, the second driving part 6 is started to drive the lower pressing plate 4 to perform displacement motion towards the L-shaped support member 2 so as to close the jaw, so as to realize the compression of the fiber cloth strip to be cut in a tensioning state, meanwhile, the third driving part 77 is started to drive the mounting seat 73 to perform downward movement, and the transition transmission arm 72 is assisted to drive the deflection hook arm 71 to perform deflection motion around the first hinge shaft 74 until the rear end (namely a hanging end) of the L-shaped support member 2 is hooked, so that the fiber cloth strips fed in the same batch are effectively pressed between the L-shaped support member 2 and the lower pressing plate 4.

Further, as is clear from fig. 5, the posture auxiliary maintaining part 7 itself has a very simple design structure, which facilitates manufacturing and implementation, and facilitates performing maintenance operation at a later stage. Besides, the practical experiment result shows that the posture auxiliary maintaining part 7 also has good action response speed, and is beneficial to realizing quick and accurate hooking of the rear end part of the L-shaped supporting part 2. The posture auxiliary maintaining part 7 also skillfully uses the lever force increasing principle, and can greatly reduce the requirement of the output power of the third driving part 77.

In the present embodiment, the third driving portion 77 is preferably an air cylinder having a high response speed and a smooth driving process. The third driving part 77 may take various design structures to achieve the fixation of its own position according to common design knowledge. However, a design solution with a simple design structure and easy manufacturing and implementation is proposed herein, which is specifically as follows: the posture auxiliary maintaining part 7 is further provided with an installation transition plate 78. A transition plate 78 is installed to directly bear the third driving part 77, which is detachably fixed to the lower press plate 4.

In order to facilitate the swing hook arm 71 to hook the L-shaped holding member 2 more smoothly and reliably, as shown in fig. 6 and 7, as a further optimization of the structure of the posture auxiliary maintaining portion 7, a hook notch 21 for the swing hook arm 71 to perform a hook operation is extended forward from the rear side wall of the L-shaped holding member 2.

As is clear from fig. 10, an arc-shaped pressing surface 711 is formed on the hooking region of the swing hook arm 71, and an arc-shaped pressing surface (not shown) corresponding to the arc-shaped pressing surface 711 is formed on the top wall of the hooking notch 21. In this way, in the process that the swing hooking arm 71 performs the swing motion to hook the L-shaped supporting member 2, the arc pressing contact surface 711 and the arc pressing contact surface can effectively reduce the relative friction force applied to the swing hooking arm 71 and the L-shaped supporting member 2, which is not only beneficial to the swing hooking arm 71 to more smoothly hook the L-shaped supporting member 2, but also greatly prolongs the service life of the swing hooking arm 71 and the L-shaped supporting member 2, thereby reducing the later maintenance frequency and cost.

Finally, it should be noted that, as also clearly shown in fig. 6-9, a trapezoidal friction-increasing groove 22 extends downwardly from the top wall of the L-shaped support member 2. A trapezoidal friction-increasing protrusion 41 matched with the trapezoidal friction-increasing groove 22 extends downwards from the bottom wall of the lower pressing plate 4. Under the working state, the trapezoidal friction increasing grooves 22 and the trapezoidal friction increasing protrusions 41 are in synergistic effect to realize reliable compression of the fiber cloth strips, and the fiber cloth strips are guaranteed to be always kept in a tensioning state when cutting operation is carried out.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (7)

1. A fiber cloth strip clamping and receiving mechanism is matched with a pressing unit and a cutting unit for application, so that a fiber cloth strip is maintained in a tensioning state before being cut off; the fiber cloth strip clamping and receiving mechanism comprises a mounting base plate, an L-shaped supporting piece, a Z-shaped transition piece, a lower pressing plate, a first driving part and a second driving part; the mounting substrate is borne by a framework of the weft laying machine, and can perform displacement motion along the front-back direction and the up-down direction under the action of the driving force of the first driving part; the front end part of the L-shaped support part is detachably fixed with the mounting substrate into a whole through the Z-shaped transition part; the lower pressing plate is arranged right above the L-shaped supporting piece and is always parallel to the mounting substrate; the L-shaped supporting piece and the lower pressing plate jointly form a jaw for the tensioned fiber cloth to penetrate through; the second driving portion is borne by the mounting substrate; in a working state, the fiber cloth strip clamping and receiving mechanism and the pressing unit are opposite, the second driving part acts to drive the lower pressing plate to move towards/away from the L-shaped supporting part to close/open the jaw so as to realize/release the compression of the fiber cloth strip to be cut in a tensioning state, and the fiber cloth strip clamping and receiving device is characterized by also comprising an attitude auxiliary maintaining part; in the process that the lower pressing plate performs displacement movement relative to the L-shaped supporting piece under the action of the driving force of the second driving part so as to press the fiber cloth strips, the posture auxiliary maintaining part acts to apply dragging force to the rear end part of the L-shaped supporting piece so that the jaw is always maintained in a fully closed state.

2. The fiber cloth strip clamping and receiving mechanism according to claim 1, wherein the posture auxiliary maintaining part comprises a swing hook hanging arm, a transition transmission arm, a mounting seat, a first hinge shaft, a second hinge shaft, a third hinge shaft and a third driving part; the deflection hook arm is hinged with the lower pressing plate by the first hinge shaft; the third driving part is used for driving the mounting seat and is borne by the lower pressure plate; the two end parts of the transitional transmission arm are respectively hinged with the mounting seat and the deflection hook hanging arm in a one-to-one correspondence manner through the second hinge shaft and the third hinge shaft; the mounting seat performs displacement motion along the vertical direction under the action of the driving force of the third driving part, and meanwhile, the deflection hook hanging arm performs circumferential deflection motion around the first hinge shaft under the action of the dragging force of the transition transmission arm so as to realize/release hooking of the rear end part of the L-shaped leaning piece.

3. The fiber cloth strip clamping and receiving mechanism according to claim 2, wherein the posture auxiliary maintaining part further comprises an installation transition plate; the mounting transition plate is used for directly bearing the third driving part and is detachably fixed with the lower pressing plate.

4. The fiber cloth strip clamping and receiving mechanism according to claim 2, wherein a hooking notch for the swinging hook hooking arm to perform hooking operation extends forwards from the rear side wall of the L-shaped supporting piece.

5. The fiber cloth strip clamping and receiving mechanism according to claim 4, wherein the top wall of the hooking notch is arc-shaped; and beveling the deflection hook hanging arm to form an arc-shaped press contact surface matched with the top wall of the hook notch.

6. The fiber cloth strip clamping and receiving mechanism according to claim 2, wherein the third driving part is a cylinder, a hydraulic cylinder or a linear motor.

7. The fiber cloth strip clamping and receiving mechanism according to any one of claims 1 to 6, wherein a trapezoidal friction-increasing groove extends downwards from the top wall of the L-shaped supporting piece; a trapezoidal friction increasing bulge matched with the trapezoidal friction increasing groove extends downwards from the bottom wall of the lower pressing plate; the trapezoidal friction increasing grooves and the trapezoidal friction increasing protrusions are in synergistic effect to achieve compression of the fiber cloth strips.

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