Opening mechanism of circular weaving machine
By designing a circular loom opening mechanism with sliding adjustment frame, the problems of troubles and high cost of adjusting the opening and closing size in the prior art are solved, and convenient opening and closing size adjustment and cost reduction are achieved.
Patent Information
- Application Number
- CN202520532164.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2025-04-22
- Estimated Expiration
- 2035-03-25
AI Technical Summary
The opening mechanism of the existing round loom is troublesome and expensive when adjusting the opening size, so the cam needs to be replaced to achieve adjustment.
An opening mechanism of a circular loom is designed to adjust the size of the force arm of the swing rod acting on the driving frame by sliding the adjustment frame, and then adjust the opening and intersection size to achieve convenient adjustment operation without changing parts.
It realizes convenient adjustment of opening and closing size, is easy to operate, reduces costs, and improves adjustment flexibility.
Smart Images
Figure CN222781758U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of circular looms, in particular to an opening mechanism of a circular loom. Background Art
[0002] A circular loom is a device used to weave tubular woven fabrics such as woven bags and cloth bags, wherein the opening mechanism is composed of a cam, a rocker arm and a brown belt, which are used to drive the warp yarn to move back and forth longitudinally and are divided into two layers, upper and lower, to form a shed. The specific working principle is that the cam drives the rocker arm to swing back and forth longitudinally through a flange arranged thereon, and the rocker arm drives the brown belt to drive the warp yarn to move. In production, when the size of the opening (that is, the size of the shed formed) needs to be adjusted, it is generally achieved by replacing the cam. Different cams have flanges with different degrees of undulation to adjust the swing amplitude of the rocker arm to achieve the adjustment of the size of the opening. However, this method is more troublesome to operate and its cost is higher.
[0003] In view of the above problems, the present invention makes improvements. Utility Model Content
[0004] The utility model provides an opening mechanism of a circular loom, which solves the above problems existing in the prior art during use.
[0005] The technical solution of the utility model is achieved in this way:
[0006] The invention relates to an opening mechanism of a circular loom, comprising a frame, a cam, a rocker arm and a brown belt, wherein the rocker arm is swingably arranged on the frame and one end of the rocker arm is movably cooperated with the cam, and further comprises a driving frame which can be longitudinally slidably arranged on the frame, the free end of the rocker arm is straight and an adjusting frame which can slide along the length direction of the rocker arm is passed through the free end of the rocker arm, a supporting rod is formed on the adjusting frame and a locking bolt which is tightly pressed against the rocker arm is screwed on the adjusting frame, two driving wheels which are symmetrical along the sliding direction of the adjusting frame are rotatably connected to the supporting rod, a sliding groove which matches the driving wheel and extends along the sliding direction of the adjusting frame is formed on the driving frame, the supporting rod is passed through the sliding groove to keep the driving wheel in the sliding groove, and both ends of the brown belt are connected to the driving frame.
[0007] Preferably, the driving frame is composed of an upper frame, a lower frame and a plurality of columns, wherein the plurality of columns are erected on the lower frame and fixedly connected to the lower frame, the upper frame is fixedly connected to the columns, the two ends of the brown belt are respectively connected to the upper frame and the lower frame, the frame is provided with a plurality of support arms located on one side of the columns, and the columns can be slidably passed through the support arms.
[0008] Preferably, a sliding bearing is provided between the support arm and the column.
[0009] Preferably, the upper frame is passed through the column, and the column is threaded with a first locking nut and a second locking nut respectively located on the upper and lower sides of the upper frame. The first locking nut and the second locking nut are respectively tightly pressed against the upper and lower surfaces of the upper frame to achieve a fixed connection between the upper frame and the column.
[0010] Preferably, a plurality of connecting ears are formed on the upper frame and the lower frame, and the two ends of the brown belt are folded in half to form a connecting ring. The connecting ears are provided with connecting pins that pass through the connecting ring to achieve connection between the two ends of the brown belt and the upper frame and the lower frame.
[0011] Preferably, an installation groove is provided on the inner wall of the adjustment frame, a limit block is placed in the installation groove, a plurality of limit protrusions spaced apart along the sliding direction of the adjustment seat are formed on the surface of the limit block facing the rocker arm, a plurality of limit grooves matching the limit protrusions are provided on the surface of the rocker arm facing the limit block, the locking bolt is tightly pressed against the limit block so that the limit block is tightly pressed against the rocker arm, and the limit protrusion is kept in the limit groove.
[0012] Preferably, a spring is provided in the installation groove and is tightly pressed against the limit block.
[0013] To sum up, the beneficial effect of the utility model is that the position of the adjustment frame on the rocker arm is adjusted by sliding the adjustment frame to adjust the size of the force arm of the rocker arm acting on the driving frame, and the amplitude of the longitudinal reciprocating motion of the driving frame driven by the rocker arm is adjusted, thereby realizing the adjustment of the opening and closing size. The adjustment operation is very convenient and does not require replacement of parts, which makes the cost lower. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0015] Figure 1 It is a structural schematic diagram of the utility model;
[0016] Figure 2 for Figure 1 The enlarged schematic diagram of point A in the middle;
[0017] Figure 3 It is a cross-sectional schematic diagram of the utility model;
[0018] Figure 4 It is a structural schematic diagram of the swing rod and the adjustment frame in the utility model;
[0019] Figure 5 It is an exploded schematic diagram of the swing rod and the adjustment frame in the utility model;
[0020] Figure 6 It is a structural schematic diagram of the driving frame in the utility model.
[0021] In the figure: 1. cam; 2. rocker arm; 21. limit groove; 3. brown belt; 31. connecting ring; 4. drive frame; 41. lower frame; 42. column; 43. upper frame; 44. first locking nut; 45. second locking nut; 46. sliding groove; 47. connecting ear; 48. connecting pin; 5. adjusting frame; 51. support rod; 52. driving wheel; 53. mounting groove; 54. limit block; 541. limit protrusion; 55. locking bolt; 56. spring; 6. support arm; 61. sliding bearing. DETAILED DESCRIPTION
[0022] The following will be combined with the attached embodiment of the present utility model Figure 1-6 , clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] As shown in the figure, an opening mechanism of a circular loom includes a frame (not shown in the figure), a cam 1, a rocker 2 and a brown belt 3. The rocker 2 is swingably set on the frame and one end of the rocker 2 is movably matched with the cam 1. It also includes a driving frame 4 that can be longitudinally slidably set on the frame. The free end of the rocker 2 is straight and an adjustment frame 5 that can slide along the length direction of the rocker 2 is penetrated on the free end of the rocker 2. A support rod 51 is formed on the adjustment frame 5 and a locking bolt 55 that is tightly against the rocker 2 is screwed on the adjustment frame 5. Two driving wheels 52 symmetrical along the sliding direction of the adjusting frame 5 are rotatably connected to the support rod 51. A sliding groove 46 matching the driving wheel 52 and extending along the sliding direction of the adjusting frame 5 is opened on the driving frame 4. The support rod 51 penetrates the sliding groove 46 to keep the driving wheel 52 in the sliding groove 46. Both ends of the brown belt 3 are connected to the driving frame 4.
[0024] Specifically, the driving frame 4 is slidably arranged on the frame: the driving frame 4 is composed of an upper frame 43, a lower frame 41 and a plurality of columns 42, the plurality of columns 42 are erected on the lower frame 41 and fixedly connected to the lower frame 41, the upper frame 43 is fixedly connected to the columns 42, the two ends of the brown belt 3 are respectively connected to the upper frame 43 and the lower frame 41, the frame is provided with a plurality of support arms 6 located on one side of the columns 42, the columns 42 can be slidably penetrated on the support arms 6, and the sliding grooves 46 are arranged on the lower frame 41.
[0025] In the above structure, when the cam 1 connected to the main shaft of the frame rotates, the upper and lower curved flanges of the cam 1 drive the swing rod 2 to swing back and forth. When the free end of the swing rod 2 swings, the driving wheel 52 keeps rolling in the sliding groove 46 and drives the column 42 of the driving frame 4 to slide back and forth longitudinally on the support arm 6. The driving frame 4 drives the brown belt 3 to reciprocate longitudinally and drives the warp yarn to move to form a shed. When the size of the opening needs to be adjusted, the locking bolt 55 is loosened, and the adjustment frame 5 is moved to slide on the straight free end of the swing rod 2, and the driving wheel 52 is driven to roll in the sliding groove 46 through the support rod 51. When the adjustment frame 5 slides in the direction close to the fulcrum of the swing rod 2, the driving wheel 52 rolls in the sliding groove 46 to reduce the swing. The rod 2 acts on the force arm on the driving frame 4, reducing the amplitude of the longitudinal reciprocating motion of the driving frame 4 driven by the rocker arm 2, thereby reducing the size of the opening. When the adjusting frame 5 slides in the direction away from the fulcrum of the rocker arm 2, the driving wheel 52 rolls in the sliding groove 46 to increase the force arm of the rocker arm 2 on the driving frame 4, increasing the amplitude of the longitudinal reciprocating motion of the driving frame 4 driven by the rocker arm 2, thereby increasing the size of the opening. After the adjusting frame 5 slides into place, the locking bolt 55 is tightened against the rocker arm 2 to place the adjusting frame 5 on the rocker arm 2, thereby adjusting the size of the opening of the opening mechanism. The above adjustment process is easy to operate, can conveniently adjust the size of the opening, and does not require replacement of parts, thereby reducing costs.
[0026] Preferably, a sliding bearing 61 is provided between the support arm 6 and the column 42, and the sliding bearing 61 enhances the smoothness of sliding of the column 42 on the support arm 6 and enhances the stability and smoothness of the driving frame 4 driving the brown belt 3 to reciprocate longitudinally.
[0027] In addition, the upper frame 43 is passed through the column 42, and the column 42 is screwed with a first locking nut 44 and a second locking nut 45 respectively located on the upper and lower sides of the upper frame 43. The first locking nut 44 and the second locking nut 45 are respectively pressed against the upper and lower surfaces of the upper frame 43 to achieve a fixed connection between the upper frame 43 and the column 42. In the above structure, the position of the first locking nut 44 and the second locking nut 45 on the column 42 is adjusted by rotating the first locking nut 44 and the second locking nut 45, which can drive the upper frame 43 to move slightly on the column 42 and adjust the position of the upper frame 43 relative to the lower frame 41, thereby ensuring that the tension of the brown belt 3 is stable when the upper frame 43 cooperates with the lower frame 41 to tighten the brown belt 3, thereby ensuring the quality of the woven finished product.
[0028] In addition, a plurality of connecting ears 47 are formed on the upper frame 43 and the lower frame 41, and the two ends of the brown belt 3 are folded in half to form a connecting ring 31. The connecting ears 47 are provided with connecting pins 48 that pass through the connecting ring 31 to achieve the connection between the two ends of the brown belt 3 and the upper frame 43 and the lower frame 41. In the above structure, the connection between the brown belt 3 and the upper frame 43 and the lower frame 41 achieved by the connecting pins 48 facilitates the disassembly and assembly of the brown belt 3, and facilitates the replacement and maintenance of the brown belt 3 during use, thereby ensuring the quality of the woven finished product.
[0029] In addition, a mounting groove 53 is provided on the inner wall of the adjusting frame 5, and a limiting block 54 is placed in the mounting groove 53. A plurality of limiting protrusions 541 are formed on the surface of the limiting block 54 facing the swing rod 2 and are distributed at intervals along the sliding direction of the adjusting seat. A plurality of limiting grooves 21 matching the limiting protrusions 541 are formed on the surface of the swing rod 2 facing the limiting block 54. The locking bolt 55 is pressed against the limiting block 54 to make the limiting block 54 pressed against the swing rod 2, and the limiting protrusions 541 are kept in the limiting grooves 21. In the above structure, the limiting block 54 is limited by the mounting groove 53 to maintain stability with the adjusting frame 5 in the sliding direction of the adjusting frame 5. When the locking bolt 55 is pressed against the limiting frame to keep the limiting protrusions 541 in the limiting grooves 21, the limiting protrusions 541 are pressed against the limiting frame to keep the limiting protrusions 541 in the limiting grooves 21. The cooperation with the limit groove 21 limits the movement of the limit block 54 relative to the limit block 54 relative to the swing rod 2 in the sliding direction of the adjustment frame 5, and further limits the movement of the adjustment frame 5 relative to the swing rod 2 in the sliding direction of the adjustment frame 5, thereby enhancing the stability between the adjustment frame 5 and the swing rod 2 after the adjustment frame 5 is adjusted into place, thereby ensuring the stability when the swing rod 2 drives the adjustment frame 5 and drives the driving frame 4 and then drives the brown belt 3 to reciprocate longitudinally, thereby ensuring the quality of the woven product, and when it is necessary to adjust the position of the adjustment frame 5 on the swing rod 2 to adjust the opening size, after loosening the locking bolt 55, the limit block 54 has a certain space to move outward in the installation groove 53, and the limit protrusion 541 can be disengaged from the limit groove 21 as the adjustment frame 5 slides, so that the opening size can be adjusted.
[0030] Preferably, a spring 56 is provided in the mounting groove 53, which is tightly against the limit block 54, and the limit protrusion 541 and the adjustment groove are of matching ditch plug type. After the locking bolt 55 is loosened, the elastic force of the spring 56 on the limit block 54 keeps the limit protrusion 541 in the limit groove 21, and when the adjustment frame 5 slides on the rocker arm 2, the limit block 54 is driven by the adjustment frame 5 and the limit protrusion 541 elastically moves between the limit grooves 21 at different positions, thereby applying a certain damping to the sliding of the adjustment frame 5 on the rocker arm 2, thereby improving the feel of the adjustment tube when sliding on the rocker arm 2, and facilitating more precise adjustment of the position of the adjustment frame 5 and more precise adjustment of the opening size.
[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A shedding mechanism of a circular loom, comprising a frame, a cam (1), a swing rod (2) and a brown belt (3), wherein the swing rod (2) is swingably arranged on the frame and one end of the swing rod is movably matched with the cam (1), and is characterized in that: The invention also comprises a driving frame (4) which is longitudinally slidably arranged on the frame, the free end of the swing rod (2) is straight and an adjusting frame (5) which can slide along the length direction of the swing rod (2) is penetrated on the free end of the swing rod (2), a supporting rod (51) is formed on the adjusting frame (5) and a locking bolt (55) which is screwed on the adjusting frame (5) and is tightly abutted against the swing rod (2), the supporting rod (51) is rotatably connected to two driving wheels (52) which are symmetrical along the sliding direction of the adjusting frame (5), the driving frame (4) is provided with a sliding groove (46) which matches the driving wheel (52) and extends along the sliding direction of the adjusting frame (5), the supporting rod (51) penetrates into the sliding groove (46) so that the driving wheel (52) is kept in the sliding groove (46), and the two ends of the brown belt (3) are connected to the driving frame (4).
2. The shedding mechanism of a circular loom according to claim 1, characterized in that: The driving frame (4) is composed of an upper frame (43), a lower frame (41) and a plurality of columns (42); the plurality of columns (42) are erected on the lower frame (41) and fixedly connected to the lower frame (41); the upper frame (43) is fixedly connected to the columns (42); two ends of the brown belt (3) are respectively connected to the upper frame (43) and the lower frame (41); the frame is provided with a plurality of support arms (6) located on one side of the columns (42); the columns (42) are slidably inserted into the support arms (6).
3. The opening mechanism of a circular loom according to claim 2, characterized in that: A sliding bearing (61) is provided between the support arm (6) and the column (42).
4. The shedding mechanism of a circular loom according to claim 2, characterized in that: The upper frame (43) is inserted into the column (42), and the column (42) is threaded with a first locking nut (44) and a second locking nut (45) respectively located on the upper and lower sides of the upper frame (43). The first locking nut (44) and the second locking nut (45) are respectively pressed against the upper and lower surfaces of the upper frame (43) to achieve a fixed connection between the upper frame (43) and the column (42).
5. The shedding mechanism of a circular loom according to claim 2, characterized in that: A plurality of connecting ears (47) are formed on the upper frame (43) and the lower frame (41); the two ends of the brown belt (3) are folded in half to form a connecting ring (31); and connecting pins (48) are provided on the connecting ears (47) and pass through the connecting ring (31), so as to achieve connection between the two ends of the brown belt (3) and the upper frame (43) and the lower frame (41).
6. The shedding mechanism of a circular loom according to claim 1, characterized in that: The inner wall of the adjustment frame (5) is provided with a mounting groove (53), a limiting block (54) is placed in the mounting groove (53), a surface of the limiting block (54) facing the swing rod (2) is provided with a plurality of limiting protrusions (541) spaced apart along the sliding direction of the adjustment seat, a surface of the swing rod (2) facing the limiting block (54) is provided with a plurality of limiting grooves (21) matching the limiting protrusions (541), the locking bolt (55) is tightly pressed against the limiting block (54) so that the limiting block (54) is tightly pressed against the swing rod (2), and the limiting protrusions (541) are kept in the limiting grooves (21).
7. The shedding mechanism of a circular loom according to claim 6, characterized in that: A spring (56) is arranged in the installation groove (53) and is tightly pressed against the limit block (54).