Weft insertion mechanism for conical and cylindrical three-dimensional loom

Abstract

The present invention discloses a weft insertion mechanism for a conical or cylindrical three-dimensional loom, comprising a weft insertion base, a driving mechanism, a driving pulley mechanism, a driven pulley mechanism, a belt tensioning mechanism, a position adjustment mechanism and a slideway mechanism arranged on the weft insertion base, and a weft shuttle fixing mechanism arranged in the slideway mechanism. The present invention provides a weft insertion mechanism for a conical or cylindrical three-dimensional loom, which breaks through the prejudice of the industry to realize full-automatic weft insertion, greatly reduces the consumption of manpower, and improves the production efficiency of the equipment.

Description

Technical Field

[0001] The invention belongs to the field of textile equipment, and in particular relates to a weft insertion mechanism of a conical or cylindrical three-dimensional loom. Background Art

[0002] The weft insertion mechanism is a key component of the loom in the textile industry. The structure, motion accuracy and stability of the weft insertion mechanism directly affect the speed, efficiency and quality of the loom. Conical and cylindrical three-dimensional looms require the weft yarn to wrap around the core mold for one circle during weft insertion, so the weft insertion mechanism needs to make the weft yarn do circular motion around the core mold.

[0003] However, the existing cone and cylinder three-dimensional looms mostly adopt the manual weft insertion method, which has a slow weft insertion speed, low efficiency and a great waste of human resources. Summary of the invention

[0004] The purpose of the present invention is to overcome the above problems and provide a weft insertion mechanism for a conical and cylindrical three-dimensional loom to break through the industry's prejudice to achieve fully automatic weft insertion, greatly reduce manpower consumption and improve the production efficiency of the equipment.

[0005] The purpose of the present invention is achieved through the following technical solutions:

[0006] A weft insertion mechanism for a conical and cylindrical three-dimensional loom comprises a weft insertion base, a driving mechanism, an active pulley mechanism, a driven pulley mechanism, a belt tensioning mechanism, a position adjustment mechanism and a slideway mechanism arranged on the weft insertion base, and a weft shuttle fixing mechanism arranged in the slideway mechanism.

[0007] Preferably, the weft insertion base is annular, and the inner wall of the weft insertion base is provided with a bearing unit which protrudes inward and points to the center of the weft insertion base; the number of the bearing units is 16, and the 16 bearing units equally divide the inner wall of the weft insertion base, wherein any one of the bearing units is a main bearing unit, and the remaining 15 bearing units are auxiliary bearing units; the main bearing unit is provided with a driving mechanism, an active pulley mechanism, a position adjustment mechanism and a slide mechanism, and each of the auxiliary bearing units is provided with a driven pulley mechanism, a belt tensioning mechanism, a position adjustment mechanism and a slide mechanism.

[0008] Preferably, the driving mechanism consists of a servo motor, a servo reducer arranged at the output end of the servo motor and connected to the servo motor, a coupling arranged at the output end of the servo reducer and connected to the servo reducer, and a motor fixing base for supporting the servo motor and fixing the servo motor on the main bearing unit.

[0009] Furthermore, the active pulley mechanism is composed of a main base A, a bearing fixing plate A fixed on the main base A, a driving shaft A fixed on the main base A through a bearing, a driven wheel shaft A fixed on the main base A through a bearing and passing through the bearing fixing plate A, a rear upper pulley A and a rear lower pulley A sequentially sleeved on the driving shaft A from top to bottom, a front pulley A sleeved on the driven wheel shaft A and located above the bearing fixing plate A, a front and rear pulley belt A wrapped around the front pulley A and the rear lower pulley A, and a rubber ring A sleeved on the driven wheel shaft and located between the main base A and the bearing fixing plate A; the driving shaft A is connected to a coupling.

[0010] Furthermore, the driven pulley mechanism is composed of a main base B, a bearing fixing plate B fixed on the main base B, a driving shaft B fixed on the main base B through a bearing, a driven wheel shaft B fixed on the main base B through a bearing and passing through the bearing fixing plate B, a rear upper pulley B, a rear middle pulley and a rear lower pulley B sequentially sleeved on the driving shaft B from top to bottom, a front pulley B sleeved on the driven wheel shaft B and located above the bearing fixing plate B, a front and rear pulley belt B arranged around the front pulley B and the rear lower pulley B, and a rubber ring B sleeved on the driven wheel shaft and located between the main base B and the bearing fixing plate B; the two adjacent driven pulley mechanisms are connected by a left and right pulley belt arranged around the two adjacent rear upper pulleys B or between the two adjacent rear middle pulleys; any driven pulley mechanism adjacent to the driving pulley mechanism is connected to the driving pulley mechanism by a left and right pulley belt arranged around the rear middle pulley and the rear upper pulley A.

[0011] Preferably, the belt tensioning mechanism consists of a tensioning seat, a tensioning wheel shaft vertically arranged on the tensioning seat, and a tensioning wheel arranged on the top end of the tensioning wheel shaft; the tensioning wheel is attached to the outer sides of the left and right pulley belts.

[0012] Preferably, the position adjustment mechanism is arranged at the outer edge position of the upper side surface of the weft insertion base, and a position adjustment mechanism is arranged at the adjacent position of the driving pulley mechanism, each driven pulley mechanism and each belt tensioning mechanism; the position adjustment mechanism is composed of an adjustment seat, an upper adjustment block arranged above the adjustment seat, and an adjustment bolt arranged between the adjustment seat and the upper adjustment block and clamped by the adjustment seat and the upper adjustment block; the end of the adjustment bolt is fixed on the driving pulley mechanism or the driven pulley mechanism or the belt tensioning mechanism.

[0013] Furthermore, the slide mechanism consists of a slide base, a rear lower limit block and a front lower limit block symmetrically arranged at the front and rear ends of the upper side surface of the slide base, a rear upper limit block arranged on the upper side of the rear lower limit block, a front upper limit block arranged on the upper side of the front lower limit block and symmetrical with the rear upper limit block, a rear upper cover plate arranged on the upper side of the rear upper limit block, and a front upper cover plate arranged on the upper side of the front upper limit block and symmetrical with the rear upper cover plate; a combination of the rear lower limit block and the rear upper limit block is symmetrically provided with a "C"-shaped slot on the opposite surfaces of the front lower limit block and the front upper limit block, and a ball slide is also arranged on the upper side surface of the rear lower limit block and the front lower limit block, and a ball slide matching the ball slides arranged on the upper side surfaces of the rear lower limit block and the front lower limit block are also arranged on the lower side surfaces of the rear upper limit block and the front upper limit block, and balls are also filled in the ball slide; the balls are spherical or cylindrical.

[0014] In addition, the weft shuttle fixing mechanism consists of a weft shuttle fixing plate, a weft yarn tube arranged above the weft shuttle fixing plate, a yarn tube axis that passes through the weft yarn tube horizontally, a left yarn tube seat and a right yarn tube seat symmetrically arranged at both ends of the yarn tube axis, a friction plate arranged on the left side of the left yarn tube seat and fixed to the end of the yarn tube axis, a yarn guide adjustment seat arranged on the upper side of the weft shuttle fixing plate and located on the left side of the right yarn tube seat, a yarn guide rod fixing seat arranged on the yarn guide adjustment seat, a weft yarn guide rod fixed at the lower end to the yarn guide rod fixing seat, a yarn guide hook arranged at the upper end of the weft yarn guide rod, a weft yarn tensioning fixing plate arranged between the yarn guide hook and the weft yarn guide rod, and a weft yarn tensioning swing arm arranged on the lower side of the weft yarn tensioning fixing plate; the weft yarn guide rod is a rod body with multiple ends bent, and is gradually bent from bottom to top toward the center position of the weft yarn tube.

[0015] Preferably, the weft insertion shuttle fixing plate is arranged on any two adjacent slide mechanisms and can make circular motion along all the slide mechanisms; the outer side surface of the weft insertion shuttle fixing plate is attached to the outer side wall of the rubber ring A or the rubber ring B.

[0016] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0017] The structure of the present invention is simple, and the coordination between the components has well broken through the prejudice of the industry, and the effect of fully automatic weft insertion is achieved, which greatly reduces the consumption of human resources in the production process, improves the production efficiency of the equipment, and can also well reduce unnecessary operating errors, greatly improve the quality of the product, and better promote the development of enterprises and industries. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0019] Figure 2 yes Figure 1 A magnified schematic diagram of center A.

[0020] Figure 3 yes Figure 1 A magnified schematic diagram of point B in the middle.

[0021] Figure 4 It is a three-dimensional structural schematic diagram of the slide mechanism.

[0022] Figure 5 It is the main diagram of the slide mechanism.

[0023] Figure 6 yes Figure 5 Cross-sectional view along the A-A direction.

[0024] Figure 7 It is a three-dimensional structural schematic diagram of the active pulley mechanism.

[0025] Figure 8 It is a three-dimensional structural schematic diagram of the driven pulley mechanism.

[0026] Fig. 9 yes Figure 1 Enlarged schematic diagram of 90° rotation at C in the middle.

[0027] Fig.10 It is a three-dimensional structural schematic diagram of the weft shuttle fixing mechanism.

[0028] Explanation of the reference numerals: 1. weft insertion base; 2. driving mechanism; 21. servo motor; 22. servo reducer; 23. coupling; 24. motor fixing seat; 3. driving pulley mechanism; 31. main base A; 32. driving shaft A; 33. rear upper pulley A; 34. rear lower pulley A; 35. bearing fixing plate A; 36. front pulley A; 37. front and rear pulley belt A; 38. driving wheel shaft A; 39. rubber ring A; 4. driven pulley mechanism; 41. main base A; 42. driving shaft B; 43. rear upper pulley B; 44. rear middle pulley; 45. rear lower pulley B; 46. bearing fixing plate B; 47. front pulley B; 48. front and rear pulley belt B; 49. left and right pulley belt; 50. driving wheel shaft B; 51. rubber ring B; 6. belt tension Tensioning mechanism; 61, tensioning seat; 62, tensioning wheel shaft; 63, tensioning wheel; 7, position adjustment mechanism; 71, upper adjustment block; 72, adjustment seat; 73, adjustment bolt; 8, slideway mechanism; 81, slideway base; 82, rear upper cover plate; 83, rear upper limit block; 84, rear lower limit block; 85, front upper cover plate; 86, front upper limit block; 87, front lower limit block; 88, ball slideway; 89, ball; 9, weft shuttle fixing mechanism; 91, weft shuttle fixing plate; 92, left yarn cylinder seat; 93, bobbin shaft; 94, weft tube; 95, right yarn cylinder seat; 96, friction plate; 97, yarn guide adjustment seat; 98, yarn guide rod fixing seat; 99, weft yarn guide rod; 100, yarn guide hook; 101, weft tensioning fixing plate; 102, weft tensioning swing arm. DETAILED DESCRIPTION

[0029] The present invention will be further described in detail below in conjunction with examples, but the embodiments of the present invention are not limited thereto.

[0030] Example

[0031] like Figure 1 , 2 As shown, a weft insertion mechanism of a conical and cylindrical three-dimensional loom includes a weft insertion base 1, a driving mechanism 2 arranged on the weft insertion base 1, an active pulley mechanism 3, a driven pulley mechanism 4, a belt tensioning mechanism 6, a position adjustment mechanism 7 and a slideway mechanism 8, and a weft shuttle fixing mechanism 9 arranged in the slideway mechanism 8.

[0032] The weft insertion base 1 is annular, and the inner wall of the weft insertion base 1 is provided with a bearing unit which protrudes inward and points to the center of the weft insertion base 1; the number of the bearing units is 16, and the 16 bearing units evenly divide the inner wall of the weft insertion base 1, wherein any one of the bearing units is a main bearing unit, and the remaining 15 bearing units are auxiliary bearing units; the main bearing unit is provided with a driving mechanism 2, an active pulley mechanism 3, a position adjustment mechanism 7 and a slideway mechanism 8, and each of the auxiliary bearing units is provided with a driven pulley mechanism 4, a belt tensioning mechanism 6, a position adjustment mechanism 7 and a slideway mechanism 8.

[0033] like Fig. 9 As shown, the driving mechanism 2 is composed of a servo motor 21, a servo reducer 22 arranged at the output end of the servo motor 21 and connected to the servo motor 21, a coupling 23 arranged at the output end of the servo reducer 22 and connected to the servo reducer 22, and a motor fixing base 24 for supporting the servo motor 21 and fixing the servo motor 21 on the main bearing unit.

[0034] The servo motor is the power device of the whole product, which is used to drive the other parts to operate. The servo motor, servo reducer and coupling are all existing technologies in the field, and their installation and use are all existing technologies in the field. The technicians in the field can complete the installation and use of the above components according to the above description and the technical common sense in the field without creative labor, so they will not be described in detail here.

[0035] like Figure 7As shown, the active pulley mechanism 3 consists of a main base A31, a bearing fixing plate A35 fixed on the main base A31, a driving shaft A32 fixed on the main base A31 through a bearing, a driven wheel shaft A38 fixed on the main base A31 through a bearing and passing through the bearing fixing plate A35, a rear upper pulley A33 and a rear lower pulley A34 sequentially sleeved on the driving shaft A32 from top to bottom, a front pulley A36 sleeved on the driven wheel shaft A38 and located above the bearing fixing plate A35, a front and rear pulley belt A37 arranged around the front pulley A36 and the rear lower pulley A34, and a rubber ring A39 sleeved on the driven wheel shaft 38 and located between the main base A31 and the bearing fixing plate A35; the active shaft A32 is connected to the coupling 23.

[0036] The driving shaft A rotates under the drive of the servo motor, and at the same time, it will drive the front pulley A and the driving wheel shaft A to rotate through the front and rear pulley belts A, and finally achieve the purpose of driving the rubber ring A to rotate.

[0037] like Figure 8 As shown, the driven pulley mechanism 4 is composed of a main base B41, a bearing fixing plate B46 fixed on the main base B41, a driving shaft B42 fixed on the main base B41 through a bearing, a driving wheel shaft B50 fixed on the main base B41 through a bearing and passing through the bearing fixing plate B46, a rear upper pulley B43, a rear middle pulley 44 and a rear lower pulley B45 which are sequentially sleeved on the driving shaft B42 from top to bottom, a front pulley B47 which is sleeved on the driving wheel shaft B50 and located above the bearing fixing plate B46, and a front pulley B47 which is arranged around the front pulley B47 and the rear lower pulley B45. 45, and a rubber ring B51 which is sleeved on the driven wheel shaft 50 and located between the main base B41 and the bearing fixing plate B46; the two adjacent driven pulley mechanisms 4 are connected by a left and right pulley belt 49 which is arranged between the two adjacent rear upper pulleys B43 or between the two adjacent rear middle pulleys 44; any one of the driven pulley mechanisms 4 adjacent to the driving pulley mechanism 3 is connected to the driving pulley mechanism 3 by a left and right pulley belt 49 which is arranged between the rear middle pulley 44 and the rear upper pulley A33.

[0038] The operating principle of the driven pulley mechanism is the same as that of the driving pulley mechanism. The only difference is that in order to connect with the next-level driven pulley mechanism, three pulleys, namely, a rear upper pulley B, a rear middle pulley and a rear lower pulley B, are sleeved on its driving shaft B; among them, the function of the rear upper pulley B and the rear middle pulley is to be connected to the adjacent driven pulley mechanism or driving pulley mechanism through the left and right pulley belts, while the function of the rear lower pulley B is to drive the rubber ring B to rotate through the front and rear pulley belts B.

[0039] like Figure 6As shown, the belt tensioning mechanism 6 consists of a tensioning seat 61, a tensioning wheel shaft 62 vertically arranged on the tensioning seat 61, and a tensioning wheel 63 arranged at the top of the tensioning wheel shaft 62; the tensioning wheel 63 is attached to the outer sides of the left and right pulley belts 49.

[0040] The function of the belt tensioning mechanism is to enable the left and right pulley belts to be in close contact with the rear upper pulley A, the rear upper pulley B and the rear middle pulley, thereby giving them greater friction to better drive their rotation.

[0041] The position adjustment mechanism 7 is arranged at the outer edge position of the upper side surface of the weft insertion base 1, and a position adjustment mechanism 7 is arranged at the adjacent position of the driving pulley mechanism 3, each driven pulley mechanism 4 and each belt tensioning mechanism 6; the position adjustment mechanism 7 is composed of an adjustment seat 72, an upper adjustment block 71 arranged above the adjustment seat 72, and an adjustment bolt 73 arranged between the adjustment seat 72 and the upper adjustment block 71 and clamped by the adjustment seat 72 and the upper adjustment block 71; the end of the adjustment bolt 73 is fixed on the driving pulley mechanism 3 or the driven pulley mechanism 4 or the belt tensioning mechanism 6.

[0042] The position adjustment mechanism can assist in adjusting the positions of the driving pulley mechanism, the driven pulley mechanism and the belt tensioning mechanism, so that they can be in the most reasonable working position, further improving the adaptability and use effect of the product.

[0043] like Figure 4 , 5 6, the slide mechanism 8 is composed of a slide base 81, a rear lower limit block 84 and a front lower limit block 87 symmetrically arranged at the front and rear ends of the upper side of the slide base 81, a rear upper limit block 83 arranged on the upper side of the rear lower limit block 84, a front upper limit block 86 arranged on the upper side of the front lower limit block 87 and symmetrical to the rear upper limit block 83, a rear upper cover plate 82 arranged on the upper side of the rear upper limit block 83, and a front upper cover plate 85 arranged on the upper side of the front upper limit block 86 and symmetrical to the rear upper cover plate 82; the rear lower limit block 84 and the rear upper limit block A "C"-shaped slot is symmetrically arranged on the opposite surface of the combination of the limit block 83 and the front lower limit block 87 and the front upper limit block 86. A ball slide 88 is also arranged on the upper side surface of the rear lower limit block 84 and the front lower limit block 87. The lower side surfaces of the rear upper limit block 83 and the front upper limit block 86 are also provided with ball slides 88 that match the ball slides 88 arranged on the upper side surfaces of the rear lower limit block 84 and the front lower limit block 87, respectively. Balls 89 are also filled in the ball slides 88; the balls 89 are spherical or cylindrical.

[0044] The function of the slide mechanism is to provide a limited bearing structure for the weft shuttle fixing mechanism that can rotate with the center of the weft insertion base as the center. The setting of the ball can further reduce the friction between the weft shuttle fixing mechanism and the slide mechanism, so that the weft shuttle fixing mechanism can move more smoothly.

[0045] like Fig.10 As shown, the weft shuttle fixing mechanism 9 is composed of a weft shuttle fixing plate 91, a weft yarn tube 94 arranged above the weft shuttle fixing plate 91, a bobbin shaft 93 that runs transversely through the weft yarn tube 94, a left yarn cylinder seat 92 and a right yarn cylinder seat 95 that are symmetrically arranged at both ends of the bobbin shaft 93, a friction plate 96 that is arranged on the left side of the left yarn cylinder seat 92 and fixed to the end of the bobbin shaft 93, a yarn guide adjustment seat 97 that is arranged on the upper side of the weft shuttle fixing plate 91 and located on the left side of the right yarn cylinder seat 95, and a yarn guide adjustment seat 97 that is arranged on the yarn guide adjustment seat 97, a weft yarn guide rod fixing seat 98, a weft yarn guide rod 99 whose lower end is fixed to the weft yarn guide rod fixing seat 98, a weft yarn guide hook 100 arranged at the upper end of the weft yarn guide rod 99, a weft yarn tensioning fixing plate 101 arranged between the weft yarn guide hook 100 and the weft yarn guide rod 99, and a weft yarn tensioning swing arm 102 arranged on the lower side of the weft yarn tensioning fixing plate 101; the weft yarn guide rod 99 is a rod body with multiple ends bent, and is gradually bent from bottom to top toward the center position of the weft yarn tube 94.

[0046] The weft insertion shuttle fixing plate 91 is arranged on any two adjacent slide mechanisms 8 and can make circular motion along all the slide mechanisms 8; the outer side surface of the weft insertion shuttle fixing plate 91 is attached to the outer side wall of the rubber ring A39 or the rubber ring B51.

[0047] Structures such as the weft yarn tube and the weft yarn guide rod are all existing technologies in this field, but in the existing technologies in this field, they are mainly used through manual operation, while the present application achieves the effect of automatic operation of the product through the coordination between components, which greatly improves the use effect of the product, reduces the human resource consumption of the product, is more in line with the progress direction of modern production, and further improves the degree of automation and intelligence of the industry's production.

[0048] The outer wall of the weft shuttle fixing mechanism is in contact with the rubber ring A or the rubber ring B. When the rubber ring A or the rubber ring B rotates, the static friction between the rubber ring A or the rubber ring B and the weft shuttle fixing mechanism will push the weft shuttle fixing mechanism to move in the slide mechanism.

[0049] As described above, the present invention can be well implemented.

Claims

1. A weft insertion mechanism for a conical or cylindrical three-dimensional loom, characterized in that: The invention comprises a weft insertion base (1), a driving mechanism (2), a driving pulley mechanism (3), a driven pulley mechanism (4), a belt tensioning mechanism (6), a position adjustment mechanism (7) and a slideway mechanism (8) arranged on the weft insertion base (1), and a weft shuttle fixing mechanism (9) arranged in the slideway mechanism (8); the weft insertion base (1) is annular, and the inner wall of the weft insertion base (1) is provided with a bearing unit protruding inwards and pointing to the center of the weft insertion base (1); the number of the bearing units is 16, and the 16 bearing units evenly divide the inner wall of the weft insertion base (1), any one of which is a main bearing unit, and the remaining 15 bearing units are auxiliary bearing units; the main bearing unit is provided with a driving mechanism (2), A driving pulley mechanism (3), a position adjustment mechanism (7) and a slideway mechanism (8), wherein each auxiliary bearing unit is provided with a driven pulley mechanism (4), a belt tensioning mechanism (6), a position adjustment mechanism (7) and a slideway mechanism (8); the position adjustment mechanism (7) is arranged at the outer edge of the upper side surface of the weft insertion base (1), and a position adjustment mechanism (7) is arranged at an adjacent position of the driving pulley mechanism (3), each driven pulley mechanism (4) and each belt tensioning mechanism (6); the position adjustment mechanism (7) is composed of an adjustment seat (72), an upper adjustment block (71) arranged above the adjustment seat (72), and a lower adjustment block (71) arranged between the adjustment seat (72) and the upper adjustment block (71) and The slide mechanism (8) is composed of a slide base (81), a rear lower limit block (84) and a front lower limit block (87) symmetrically arranged at the front and rear ends of the upper side surface of the slide base (81), a rear upper limit block (83) arranged on the upper side of the rear lower limit block (84), a front upper limit block (86) arranged on the upper side of the front lower limit block (87) and symmetrical to the rear upper limit block (83), a rear upper cover plate (82) arranged on the upper side of the rear upper limit block (83), and a rear upper cover plate (82) arranged on the upper side of the rear upper limit block (83), and a rear upper cover plate (83) arranged on the upper side of the front upper limit block (86) and symmetrical to the rear upper limit block (83). The upper cover plate (82) is composed of a front upper cover plate (85) symmetrical to the upper cover plate (82); a "C"-shaped slot is symmetrically arranged on the opposite surface of the combination of the rear lower limit block (84) and the rear upper limit block (83) and the front lower limit block (87) and the front upper limit block (86); a ball slide (88) is also arranged on the upper side surface of the rear lower limit block (84) and the front lower limit block (87); and a ball slide (88) matching the ball slide (88) arranged on the upper side surface of the rear lower limit block (84) and the front lower limit block (87) is also arranged on the lower side surface of the rear upper limit block (83) and the front upper limit block (86); and balls (89) are also filled in the ball slide (88); the balls (89) are spherical or cylindrical;The driving pulley mechanism (3) comprises a main base A (31), a bearing fixing plate A (35) fixed on the main base A (31), a driving shaft A (32) fixed on the main base A (31) via a bearing, a driving wheel shaft A (38) fixed on the main base A (31) via a bearing and passing through the bearing fixing plate A (35), a rear upper pulley A (33) and a rear lower pulley A (34) which are sequentially sleeved on the driving shaft A (32) from top to bottom, a front pulley A (36) sleeved on the driving wheel shaft A (38) and located above the bearing fixing plate A (35), and a front pulley A (36) which is arranged around the front pulley A (36) and The front and rear pulley belts A (37) between the rear lower pulley A (34) and the rubber ring A (39) sleeved on the driven wheel shaft (38) and located between the main base A (31) and the bearing fixing plate A (35); the driving shaft A (32) is connected to the coupling (23); the driven pulley mechanism (4) is composed of a main base B (41), a bearing fixing plate B (46) fixed on the main base B (41), a driving shaft B (42) fixed on the main base B (41) through a bearing, and a driven wheel shaft B fixed on the main base B (41) through a bearing and passing through the bearing fixing plate B (46). (50), a rear upper pulley B (43), a rear middle pulley (44) and a rear lower pulley B (45) which are sequentially sleeved on the driving shaft B (42) from top to bottom, a front pulley B (47) which is sleeved on the driving shaft B (50) and located above the bearing fixing plate B (46), a front and rear pulley belt B (48) which is arranged around the front pulley B (47) and the rear lower pulley B (45), and a rubber ring B (51) which is sleeved on the driving shaft (50) and located between the main base B (41) and the bearing fixing plate B (46); the two adjacent driven pulley mechanisms (4) are arranged around the two adjacent driven pulley mechanisms (4). The left and right pulley belts (49) are connected between two adjacent rear upper pulleys B (43) or between two adjacent rear middle pulleys (44); any one of the driven pulley mechanisms (4) adjacent to the driving pulley mechanism (3) is connected to the driving pulley mechanism (3) through the left and right pulley belts (49) arranged around the rear middle pulley (44) and the rear upper pulley A (33); the outer wall of the weft shuttle fixing mechanism is in contact with the rubber ring A or the rubber ring B, and when the rubber ring A or the rubber ring B rotates, the static friction between the rubber ring A or the rubber ring B and the weft shuttle fixing mechanism pushes the weft shuttle fixing mechanism to move in the slideway mechanism. ; 2. The weft insertion mechanism of a conical or cylindrical three-dimensional loom according to claim 1, characterized in that: The driving mechanism (2) is composed of a servo motor (21), a servo reducer (22) arranged at an output end of the servo motor (21) and connected to the servo motor (21), a coupling (23) arranged at an output end of the servo reducer (22) and connected to the servo reducer (22), and a motor fixing seat (24) for supporting the servo motor (21) and fixing the servo motor (21) on the main bearing unit.

3. The weft insertion mechanism of a conical or cylindrical three-dimensional loom according to claim 2, characterized in that: The belt tensioning mechanism (6) is composed of a tensioning seat (61), a tensioning wheel shaft (62) vertically arranged on the tensioning seat (61), and a tensioning wheel (63) arranged at the top end of the tensioning wheel shaft (62); the tensioning wheel (63) is attached to the outside of the left and right pulley belts (49).

4. The weft insertion mechanism of a conical or cylindrical three-dimensional loom according to claim 3, characterized in that: The weft shuttle fixing mechanism (9) comprises a weft shuttle fixing plate (91), a weft yarn tube (94) arranged above the weft shuttle fixing plate (91), a bobbin shaft (93) extending transversely through the weft yarn tube (94), a left bobbin seat (92) and a right bobbin seat (95) symmetrically arranged at both ends of the bobbin shaft (93), a friction plate (96) arranged on the left side of the left bobbin seat (92) and fixed to the end of the bobbin shaft (93), a yarn guide adjustment seat (97) arranged on the upper side of the weft shuttle fixing plate (91) and located on the left side of the right bobbin seat (95), and a friction plate (96) arranged on the yarn guide adjustment seat. The invention relates to a weft yarn guide rod (94) comprising a guide rod fixing seat (98) on a support (97), a weft yarn guide rod (99) whose lower end is fixed to the guide rod fixing seat (98), a guide hook (100) arranged at the upper end of the weft yarn guide rod (99), a weft yarn tensioning fixing plate (101) arranged between the guide hook (100) and the weft yarn guide rod (99), and a weft yarn tensioning swing arm (102) arranged at the lower side of the weft yarn tensioning fixing plate (101); the weft yarn guide rod (99) is a rod body with multiple ends bent, and is gradually bent from bottom to top toward the center position of the weft yarn tube (94).

5. The weft insertion mechanism of a conical or cylindrical three-dimensional loom according to claim 4, characterized in that: The weft insertion shuttle fixing plate (91) is arranged on any two adjacent slide mechanisms (8) and can perform circular motion along all the slide mechanisms (8); the outer side surface of the weft insertion shuttle fixing plate (91) is attached to the outer side wall of the rubber ring A (39) or the rubber ring B (51).

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