A positioning tool for a guide plate of a weaving machine heald frame

Abstract

The utility model discloses a kind of harnessing machine heald frame guide plate positioning tool, including substrate, the top of the substrate is fixedly connected with adjusting assembly in proximity to one side, to realize displacement adjustment operation to guide plate, the sidewall bolt connection of the substrate has driving mechanism, and driving mechanism is drivingly connected in adjusting assembly, to realize driving operation to adjusting assembly, the top of the substrate is bolted with positioning assembly in the position of remote adjusting assembly and with adjusting assembly compatible, to realize positioning fixed operation to guide plate.The utility model is cooperated with adjusting assembly by driving mechanism, guide rod is slid using eccentric wheel drive, realize the accurate displacement adjustment of guide plate, compared with artificial regulation, positioning accuracy is higher, effectively reduce guide plate processing deviation, and positioning block of the inclined plane arrangement in positioning assembly can be quickly compact guide plate, and the guide plate of different thickness specifications is adapted, improve operating efficiency while enhancing tool versatility, reduce enterprise procurement cost.

Description

Technical Field

[0001] This utility model relates to the field of shuttle loom application technology, and in particular to a positioning fixture for a heald frame guide plate of a shuttle loom. Background Technology

[0002] In the processing of heald frame guide plates for shuttle looms, precise positioning of the guide plates is necessary to ensure subsequent assembly or processing accuracy. Traditional positioning methods often rely on manual clamping and fixing, which is not only inefficient but also susceptible to human error, resulting in significant dimensional deviations in the processed guide plates and failing to meet the assembly requirements of the shuttle loom. Furthermore, traditional tooling is difficult to adjust flexibly according to the specifications of the guide plates, exhibiting poor versatility and increasing tooling procurement costs for enterprises. Therefore, this utility model proposes a positioning tooling for heald frame guide plates of shuttle looms. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a positioning fixture for the heald frame guide plate of a shuttle loom, so as to solve the problems of low positioning accuracy, poor operating efficiency and weak versatility mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the present invention provides a positioning fixture for a heald frame guide plate of a shuttle loom, including a base plate, wherein an adjustment component is fixedly connected to the top of the base plate near one side to realize the displacement adjustment operation of the guide plate. The sidewall of the substrate is bolted with a drive mechanism, and the drive mechanism is driven to the adjustment assembly to drive the adjustment assembly. The top of the substrate is located away from the adjustment component and is bolted to a positioning component that is compatible with the adjustment component, so as to achieve positioning and fixing of the guide plate.

[0005] The present invention is further configured such that: the adjustment component includes a plurality of equidistantly arranged positioning cylinders welded to a substrate, and a guide rod is slidably connected to the inner wall of each of the plurality of positioning cylinders; a push plate is fixedly connected to one end of each guide rod, and the other end is connected to a drive mechanism; a plurality of positioning frames are uniformly fixedly connected to one side of each push plate, and a placement plate for placing the guide plate is rotatably connected inside each of the plurality of positioning frames.

[0006] Through the above technical solution, the positioning cylinder provides a sliding guide reference for the guide rod, ensuring that the guide rod drives the push plate to move in a straight line; the placement plate can rotate in the positioning frame, which can not only stably support the guide plate, but also finely adjust the angle of the guide plate according to the processing requirements, adapting to the positioning posture requirements of different processes.

[0007] The present invention is further configured such that: a plurality of tension springs are uniformly engaged on the side wall of the push plate, and the other end of the plurality of tension springs is engaged and connected to the side wall of the substrate.

[0008] Through the above technical solution, the tension spring can automatically pull the push plate and guide rod back to the initial position after the drive mechanism stops driving, without the need for manual reset, simplifying the operation process and improving the reusability efficiency of the positioning fixture.

[0009] The present invention is further configured such that: the driving mechanism includes a driving shaft, the end face of the driving shaft is rotatably connected to a mounting plate, and the two mounting plates are bolted to the base plate; a plurality of eccentric wheels are fixedly connected to the outer wall of the driving shaft; and a rotating wheel is fixedly connected to one end of the driving shaft.

[0010] Through the above technical solution, the mounting plate provides stable rotational support for the drive shaft, ensuring the coaxiality of the drive shaft during rotation; the operator can rotate the rotating wheel to drive the drive shaft and eccentric wheel to rotate synchronously, and the eccentric structure of the eccentric wheel converts the rotational motion into a linear thrust on the guide rod, realizing the displacement drive of the adjustment component, which is convenient to operate and has a stable driving force.

[0011] The present invention is further configured such that the outer walls of the plurality of eccentric wheels are respectively attached to the end faces of the plurality of guide rods, and the contact ends of the plurality of guide rods and eccentric wheels are arc-shaped.

[0012] Through the above technical solutions, the arc-shaped contact end can reduce the frictional resistance between the eccentric wheel and the end face of the guide rod when the eccentric wheel rotates, reduce component wear, and extend the service life of the tooling; at the same time, the arc-shaped contact surface can ensure that the eccentric wheel and the guide rod always maintain a stable fit, avoid jamming during transmission, and ensure the smoothness and accuracy of the displacement adjustment of the adjustment component.

[0013] The present invention is further configured such that: the positioning component includes a positioning strip bolted to the base plate, and a plurality of fixing seats corresponding to the positioning frame are welded to the top of the positioning strip, and a positioning pressure block is rotatably connected inside the plurality of fixing seats.

[0014] Through the above technical solution, the positioning strip is bolted to the base plate, which makes it easy to adjust the overall installation position of the positioning assembly according to the specifications of the guide plate; the fixed base provides a rotation fulcrum for the positioning block, so that the positioning block can be flexibly flipped, which facilitates the placement and removal of the guide plate, while ensuring the clamping stability during positioning.

[0015] The present invention is further configured such that the end faces of the plurality of positioning blocks are all inclined and can be pressed against the top of the placement plate.

[0016] Through the above technical solution, the inclined surface design allows the positioning pressure block to adapt to guide plates of different thicknesses when clamping. Stable clamping is achieved by the fit between the inclined surface and the top of the guide plate, eliminating the need to replace the special pressure block and improving the versatility of the tooling. At the same time, the inclined surface can disperse the clamping force and prevent the guide plate from deforming due to excessive local pressure.

[0017] The beneficial effects of this utility model are as follows: 1. The positioning fixture for the heald frame guide plate of the shuttle loom proposed in this utility model, through the cooperation of the drive mechanism and the adjustment component, uses the eccentric wheel to drive the guide rod to slide, so as to realize the precise displacement adjustment of the guide plate. Compared with manual adjustment, the positioning accuracy is higher and the machining deviation of the guide plate is effectively reduced. 2. The positioning fixture for the heald frame guide plate of the loom proposed in this utility model can quickly press the guide plate by setting the positioning pressure block on the inclined surface in the positioning component, and it is compatible with guide plates of different thicknesses and specifications, which improves the operating efficiency, enhances the versatility of the fixture, and reduces the enterprise's procurement costs. Attached Figure Description

[0018] Figure 1 This is a first structural diagram of a positioning fixture for a heald frame guide plate of a shuttle loom according to the present invention; Figure 2 This is a top view of a positioning fixture for a heald frame guide plate of a shuttle loom according to the present invention; Figure 3 This is a second structural diagram of a positioning fixture for a heald frame guide plate of a shuttle loom according to the present invention.

[0019] In the diagram: 1. Base plate; 2. Adjustment assembly; 21. Positioning cylinder; 22. Guide rod; 23. Push plate; 24. Positioning frame; 25. Placement plate; 26. Tension spring; 3. Drive mechanism; 31. Drive shaft; 32. Mounting plate; 33. Eccentric wheel; 34. Rotating wheel; 4. Positioning assembly; 41. Positioning strip; 42. Fixing seat; 43. Positioning pressure block. Detailed Implementation

[0020] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0021] like Figures 1-3As shown, a positioning fixture for a heald frame guide plate of a shuttle loom includes a base plate 1. An adjustment assembly 2 is fixedly connected to one side of the top of the base plate 1 to adjust the displacement of the guide plate. The adjustment assembly 2 includes multiple positioning cylinders 21 arranged at equal intervals welded to the base plate 1. Guide rods 22 are slidably connected to the inner walls of the multiple positioning cylinders 21. A push plate 23 is fixedly connected to one end of the guide rod 22, and the other end is connected to a drive mechanism 3. Multiple positioning frames 24 are evenly fixedly connected to one side of the push plate 23, and a placement plate 25 for placing the guide plate is rotatably connected inside the multiple positioning frames 24. The positioning cylinders 21 serve as guide rods 22. A sliding guide reference is provided to ensure that the guide rod 22 drives the push plate 23 to move in a straight line; the placement plate 25 can rotate within the positioning frame 24, which can not only stably support the guide plate, but also finely adjust the angle of the guide plate according to the processing requirements, adapting to the positioning posture requirements of different processes. Multiple tension springs 26 are evenly engaged on the side wall of the push plate 23, and the other end of the multiple tension springs 26 is engaged and connected to the side wall of the base plate 1. The tension springs 26 use their own elastic tension to automatically pull the push plate 23 and the guide rod 22 back to the initial position after the drive mechanism 3 stops driving, without the need for manual reset, simplifying the operation process and improving the reusability efficiency of the positioning fixture; A drive mechanism 3 is bolted to the side wall of the substrate 1, and the drive mechanism 3 is driven to the adjustment assembly 2 to drive the adjustment assembly 2. The drive mechanism 3 includes a drive shaft 31, and mounting plates 32 are rotatably connected to the end faces of the drive shaft 31. The two mounting plates 32 are bolted to the substrate 1. Multiple eccentric wheels 33 are fixedly connected to the outer wall of the drive shaft 31, and a rotating wheel 34 is fixedly connected to one end of the drive shaft 31. The mounting plates 32 provide stable rotational support for the drive shaft 31 to ensure the coaxiality of the drive shaft 31 during rotation. When the operator rotates the rotating wheel 34, the drive shaft 31 and the eccentric wheels 33 can rotate synchronously. The eccentric structure of 33 converts rotational motion into linear thrust on guide rod 22, realizing displacement drive of adjustment component 2. It is convenient to operate and the driving force is stable. The outer walls of multiple eccentric wheels 33 are respectively attached to the end faces of multiple guide rods 22, and the contact ends of multiple guide rods 22 and eccentric wheels 33 are arc-shaped. The arc-shaped contact ends can reduce the frictional resistance between the eccentric wheels 33 and the end faces of guide rods 22 when rotating, reduce component wear, and extend the service life of tooling. At the same time, the arc-shaped contact ensures that the eccentric wheels 33 and guide rods 22 always maintain stable contact, avoid jamming during transmission, and ensure the smoothness and accuracy of displacement adjustment of adjustment component 2. A positioning component 4 is bolted to the top of the base plate 1, away from the adjustment component 2, and adapted to the adjustment component 2, to achieve positioning and fixing of the guide plate. The positioning component 4 includes a positioning strip 41 bolted to the base plate 1. Multiple fixing seats 42 corresponding to the positioning frame 24 are welded to the top of the positioning strip 41. Positioning pressure blocks 43 are rotatably connected inside the multiple fixing seats 42. The positioning strip 41 is bolted to the base plate 1, which facilitates adjustment of the overall installation position of the positioning component 4 according to the specifications of the guide plate. The fixing seats 42 are positioning pressure blocks. 43 provides a pivot point, allowing the positioning block 43 to be flexibly flipped, facilitating the placement and removal of the guide plate, while ensuring the clamping stability during positioning. The end faces of multiple positioning blocks 43 are all set with bevels, and each can be pressed against the top of the placement plate 25. The bevel design allows the positioning block 43 to adapt to guide plates of different thicknesses when clamping. Stable clamping is achieved by the contact between the bevel and the top of the guide plate, eliminating the need to replace special blocks and improving the versatility of the tooling. At the same time, the bevel can disperse the clamping force and prevent the guide plate from deforming due to excessive local pressure.

[0022] In use, the guide plate of the loom heald frame to be positioned is first placed on the placement plate 25 of the adjusting assembly 2. According to the processing position requirements of the guide plate, the rotating wheel 34 of the drive mechanism 3 is rotated, which drives the drive shaft 31 and the eccentric wheel 33 to rotate. During the rotation of the eccentric wheel 33, the guide rod 22 is pushed to slide along the inner wall of the positioning cylinder 21, which in turn drives the push plate 23 and the guide plate on the placement plate 25 to move until the guide plate is displaced to the target positioning position. Then, the positioning block 43 of the positioning assembly 4 is flipped so that the inclined end of the positioning block 43 is pressed against the top of the guide plate, thus completing the positioning and fixing of the guide plate. After the guide plate is processed or assembled, the rotating wheel 34 is rotated in the opposite direction, and the push plate 23 is reset under the tension of the tension spring 26. The positioning block 43 is flipped to remove the guide plate, realizing the reuse of the tooling.

[0023] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A positioning fixture for a heald frame guide plate of a shuttle loom, comprising a base plate (1), characterized in that: An adjustment assembly (2) is fixedly connected to the top of the substrate (1) near one side to achieve displacement adjustment of the guide plate; The side wall of the substrate (1) is bolted with a drive mechanism (3), and the drive mechanism (3) is connected to the adjustment assembly (2) to drive the adjustment assembly (2). The top of the substrate (1) is located away from the adjustment component (2) and is bolted to the adjustment component (2) to achieve positioning and fixing of the guide plate.

2. The positioning fixture for the heald frame guide plate of a shuttle loom according to claim 1, characterized in that: The adjustment assembly (2) includes a plurality of equidistantly arranged positioning cylinders (21) welded to the substrate (1). The inner walls of the plurality of positioning cylinders (21) are slidably connected to guide rods (22). One end of the guide rod (22) is fixedly connected to a push plate (23), and the other end is connected to a drive mechanism (3). A plurality of positioning frames (24) are evenly fixedly connected to one side of the push plate (23), and the interior of the plurality of positioning frames (24) is rotatably connected to a placement plate (25) for placing the guide plate.

3. The positioning fixture for the heald frame guide plate of a shuttle loom according to claim 2, characterized in that: The sidewall of the push plate (23) is uniformly fitted with multiple tension springs (26), and the other end of the multiple tension springs (26) is engaged with the sidewall of the base plate (1).

4. The positioning fixture for the heald frame guide plate of a shuttle loom according to claim 2, characterized in that: The drive mechanism (3) includes a drive shaft (31), and mounting plates (32) are rotatably connected to the end face of the drive shaft (31). The two mounting plates (32) are bolted to the base plate (1). Multiple eccentric wheels (33) are fixedly connected to the outer wall of the drive shaft (31), and a rotating wheel (34) is fixedly connected to one end of the drive shaft (31).

5. A positioning fixture for a heald frame guide plate of a shuttle loom according to claim 4, characterized in that: The outer walls of the plurality of eccentric wheels (33) are respectively attached to the end faces of the plurality of guide rods (22), and the contact ends of the plurality of guide rods (22) and eccentric wheels (33) are arc-shaped.

6. The positioning fixture for the heald frame guide plate of a shuttle loom according to claim 2, characterized in that: The positioning component (4) includes a positioning strip (41) bolted to the base plate (1). The top of the positioning strip (41) is welded with a plurality of fixing seats (42) corresponding to the positioning frame (24). The interior of each of the fixing seats (42) is rotatably connected with a positioning pressure block (43).

7. A positioning fixture for a heald frame guide plate of a shuttle loom according to claim 6, characterized in that: The end faces of the multiple positioning blocks (43) are all inclined and can be pressed against the top of the placement plate (25).

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