Tension adjusting mechanism for warp knitting machine

Abstract

The invention belongs to the technical field of tensioning, in particular to a tension adjusting mechanism for a warp knitting machine, and provides the following scheme that the tension adjusting mechanism comprises a base, an adjusting mechanism is arranged on one side of the top of the base, the adjusting mechanism comprises a first pressing roller, two second pressing rollers and fastening bolts, and the two second pressing rollers are symmetrically distributed on the two sides of the first pressing roller; a support is connected to the top of the base through bolts, through openings are formed in the two opposite sides of the support in a penetrating mode, supporting blocks are slidably connected to the inner walls of the two through openings, a supporting rod is connected between the opposite sides of the two supporting blocks through bolts, and the outer wall of the supporting rod is rotationally sleeved with the first pressing roller. Yarn breakage caused by large tension borne by yarn is prevented, meanwhile, friction force between the yarn and the first pressing roller and between the yarn and the second pressing roller can be reduced, and the situation that due to the friction force, the yarn is abraded due to friction heating, and yarn breakage is caused is prevented.

Description

Technical Field

[0001] The invention relates to the field of tensioning, and in particular to a tension adjusting mechanism for a warp knitting machine. Background Art

[0002] A knitted fabric is formed by feeding one or several groups of parallel yarns into all the working needles of the machine in the warp direction and forming loops at the same time. This method is called warp knitting, the fabric is called warp knitted fabric, and the machine that completes this warp knitting is called a warp knitting machine.

[0003] After searching, a Chinese patent application with application publication number CN213568733U discloses a tension adjustment mechanism of a warp knitting machine, which comprises a frame, an active roller and a driven roller are arranged for rotation inside the frame, a cloth winding roller is placed above the active roller and the driven roller, a limiting guide groove corresponding to the cloth winding roller is arranged on the top of the frame, a first guide roller and a second guide roller parallel to the active roller are arranged for rotation inside the frame, the second guide roller is located below the first guide roller, the first guide roller is elastically supported and arranged on the top of the frame, a micro switch matched with the first guide roller is arranged below the first guide roller, second shaft seats are arranged at both ends of the second guide roller, the second shaft seat is slidably connected with the frame in a vertical direction, and a driving device for driving the second shaft seat to reciprocate in a vertical direction is arranged on the frame; the tension adjustment mechanism of the warp knitting machine of the present application can ensure constant tension of the fabric during the process of winding up the fabric such as flannel after completion, thereby ensuring the quality of the fabric such as flannel produced and improving the adjustment efficiency.

[0004] When adjusting the tension of the yarn, the existing mechanism usually places multiple yarns on the mechanism and adjusts the tension of the yarn by adjusting the distance between the two rollers. However, during the adjustment process, the distance between the two rollers is small, which may cause the yarn to be clamped with a greater force, thereby causing the yarn to break due to the greater clamping force. Summary of the invention

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A tension adjustment mechanism for a warp knitting machine, comprising a base, an adjustment mechanism is arranged on one side of the top of the base, and the adjustment mechanism comprises a first pressure roller, two second pressure rollers and a fastening bolt, and the two second pressure rollers are symmetrically distributed on both sides of the first pressure roller, the top of the base is connected to a bracket by bolts, and through openings are penetrated on opposite sides of the bracket, the inner walls of the two through openings are slidably connected to support blocks, and a support rod is connected between opposite sides of the two support blocks by bolts, the first pressure roller is rotatably sleeved on the outer wall of the support rod, and first limiting rings are fixedly sleeved on both sides of the outer wall of the support rod , and the first pressure roller is located between the two first limiting rings, connecting plates are fixed on both sides of the outer wall of the support rod, and the tops of the two connecting plates are connected to the support plate by bolts, the top of the bracket is penetrated by a threaded opening, and the threaded opening is threadedly connected to the fastening bolt, the bottom of the fastening bolt contacts the top of the support plate, and multiple side plates are connected by bolts on both sides of the top of the base, and a connecting opening is penetrated on one side of the side plate, the inner wall of the connecting opening is slidably connected with a connecting block, and one side of the connecting block is connected to a connecting rod by bolts, and the second pressure roller is rotatably sleeved on the outer wall of the connecting rod.

[0006] Preferably, second limiting rings are fixedly sleeved on both sides of the outer wall of the connecting rod, and the second pressing roller is located between the two second limiting rings, and the outer walls of the first pressing roller and the second pressing roller are both smoothly arranged.

[0007] Preferably, a transmission assembly is arranged between the support block and the two connecting blocks, and the transmission assembly consists of a gear, a first rack and a second rack, the first rack and the second rack are distributed on both sides of the gear, the first rack and the second rack are meshed with the gear, a fixing block is connected between the bracket and the opposite side of the side plate by bolts, a rotating hole is penetrated through one side of the fixing block, the inner wall of the rotating hole is rotatably connected to a rotating shaft through a bearing, and the gear is fixedly sleeved on the outer wall of the rotating shaft.

[0008] Preferably, a supporting mechanism is provided on one side of the top of the base, and the supporting mechanism is located on one side of the adjusting mechanism.

[0009] Preferably, the support mechanism consists of two support seats, two rotating rods and two support rollers, and the bottom of the two support seats is connected to the top of the base by bolts, the two ends of the two rotating rods are rotatably connected to the two support seats by bearings, and the two support rollers are fixedly sleeved on the outer walls of the two rotating rods and are distributed up and down between the two support rollers.

[0010] Preferably, the outer walls of the two support rollers are each provided with a plurality of anti-slip grooves.

[0011] Preferably, a cooling mechanism is provided on one side of the supporting mechanism, and the cooling mechanism cooperates with the supporting mechanism, and one side of the cooling mechanism is located below the adjusting mechanism.

[0012] Preferably, the cooling mechanism includes a turntable, a pressure plate, an airbag and a heat sink, and one side of the turntable is connected to one of the rotating rods by bolts, a pin is welded on one side of the turntable near the top, a sleeve is rotatably sleeved on the outer wall of the pin, a push rod is connected between the sleeve and the pressure plate by a hinge, the airbag is located between the bottom of the pressure plate and the top of the base, the bottom of the heat sink is connected to the top of the base by bolts, the heat sink is located below the adjusting mechanism, a cavity is opened inside the heat sink, and a conduit is arranged between the cavity and the airbag.

[0013] Preferably, an air jet hole is formed through the top of the cavity, and the cross section of the air jet hole is trapezoidal, and the top size of the air jet hole is larger than the bottom size thereof.

[0014] The beneficial effects of the present invention are: The present invention arranges an adjustment mechanism, and when adjusting the tension of the warp knitting machine, multiple yarns are distributed on the adjustment mechanism as shown in the figure. After the distribution is completed, when it is necessary to adjust the tension of the yarn, the fastening bolt is turned, and the fastening bolt will drive the support plate to move downward. At this time, the support rod will drive the first pressure roller to move downward synchronously, and the first pressure roller will drive the support block to move when moving downward, and the second rack will move synchronously with the movement of the support block. At this time, the second rack drives the gear to rotate through meshing, and the gear drives the first rack to move upward through the meshing between the gear and the first rack. At this time, the connecting block will move upward synchronously with the second rack, and the connecting block will move upward synchronously with the second rack. When the block moves, it will drive the connecting rod to move upward synchronously. At this time, the distance between the first pressure roller and the second pressure roller will gradually increase, so that the yarn can be effectively tightened through the cooperation between the first pressure roller and the two second pressure rollers. At the same time, since the first pressure roller is rotatably sleeved on the outer wall of the support rod, and the second pressure roller is rotatably sleeved on the outer wall of the connecting rod, the yarn can be protected while being tightened to prevent the yarn from breaking due to the large tension on the yarn. At the same time, the friction between the yarn and the first pressure roller and the second pressure roller can be reduced to prevent the yarn from being worn due to frictional heat caused by the friction force, thereby causing the yarn to break. The present invention supports the yarn through the supporting mechanism and the cooling mechanism when the tension of the yarn is adjusted. During this period, the supporting roller rotates under the action of the yarn tension. At this time, the turntable rotates synchronously with the rotation of the rotating rod. At this time, the pin shaft rotates with the center of the turntable as the center of the circle, and the push rod drives the pressure plate to move downward under the action of the pin shaft and the sleeve. At this time, the pressure plate compresses the airbag when moving downward. The gas inside the airbag is transported to the inside of the cavity through the conduit after being squeezed, and the airflow is ejected upward through the air jet hole. At this time, the ejected airflow acts on the bottom of the yarn to reduce the heat generated by the yarn due to friction, thereby facilitating the protection of the yarn and preventing the yarn from being heated and worn due to friction during the process of adjusting the tension of the yarn, thereby preventing the yarn from breaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A structural schematic diagram of a tension adjustment mechanism for a warp knitting machine proposed by the present invention; Figure 2 A schematic diagram of the structure of an adjusting mechanism of a tension adjustment mechanism for a warp knitting machine proposed by the present invention; Figure 3 A partial structural schematic diagram of a tension adjustment mechanism for a warp knitting machine proposed by the present invention; Figure 4 A schematic diagram of the structure of a transmission assembly of a tension adjustment mechanism for a warp knitting machine proposed by the present invention; Figure 5 A schematic structural diagram of a support mechanism for a tension adjustment mechanism of a warp knitting machine proposed by the present invention; Figure 6 This is a schematic structural diagram of a cooling mechanism of a tension adjustment mechanism for a warp knitting machine proposed by the present invention; Figure 7 The present invention is a schematic diagram of a heat dissipation plate structure for a tension adjustment mechanism of a warp knitting machine.

[0016] In the accompanying drawings: 1. base; 2. adjustment mechanism; 3. support plate; 4. fastening bolt; 5. support mechanism; 6. cooling mechanism; 7. bracket; 8. through port; 9. support block; 10. support rod; 11. connecting plate; 12. first pressure roller; 13. side plate; 14. connecting port; 15. connecting block; 16. connecting rod; 17. second pressure roller; 18. transmission assembly; 19. fixing block; 20. rotating shaft; 21. gear; 22. first rack; 23. second rack; 24. support seat; 25. rotating rod; 26. supporting roller; 27. anti-skid groove; 28. turntable; 29. ​​pin shaft; 30. bushing; 31. pressure plate; 32. airbag; 33. push rod; 34. heat sink; 35. jet hole; 36. cavity. DETAILED DESCRIPTION

[0017] Example 1, reference Figure 1-Figure 5 A tension adjustment mechanism for a warp knitting machine comprises a base 1, an adjustment mechanism 2 is arranged on one side of the top of the base 1, and the adjustment mechanism 2 comprises a first pressure roller 12, two second pressure rollers 17 and a fastening bolt 4, and the two second pressure rollers 17 are symmetrically distributed on both sides of the first pressure roller 12, a bracket 7 is connected to the top of the base 1 by bolts, and through openings 8 are penetrated on opposite sides of the bracket 7, support blocks 9 are slidably connected to the inner walls of the two through openings 8, and a support rod 10 is connected between opposite sides of the two support blocks 9 by bolts, the first pressure roller 12 is rotatably sleeved on the outer wall of the support rod 10, first limiting rings are fixedly sleeved on both sides of the outer wall of the support rod 10, and the first pressure roller 12 is located between the two first limiting rings, connecting plates 11 are fixed on both sides of the outer wall of the support rod 10, and the tops of the two connecting plates 11 are between A support plate 3 is connected by bolts, a threaded opening is penetrated through the top of the bracket 7, and the threaded opening is threadedly connected to the fastening bolt 4, the bottom of the fastening bolt 4 contacts the top of the support plate 3, and multiple side plates 13 are connected to both sides of the top of the base 1 by bolts, and a connecting opening 14 is penetrated through one side of the side plate 13, a connecting block 15 is slidably connected to the inner wall of the connecting opening 14, and a connecting rod 16 is connected to one side of the connecting block 15 by bolts, and the second pressure roller 17 is rotatably sleeved on the outer wall of the connecting rod 16, which can protect the yarn while tightening it to prevent the yarn from breaking due to the large tension on the yarn, and reduce the friction between the yarn and the first pressure roller 12 and the second pressure roller 17 to prevent the yarn from being worn due to frictional heat caused by friction, thereby causing the yarn to break.

[0018] On the basis of the above, second limiting rings are fixedly sleeved on both sides of the outer wall of the connecting rod 16, and the second pressing roller 17 is located between the two second limiting rings. The outer walls of the first pressing roller 12 and the second pressing roller 17 are both smoothly arranged.

[0019] On the basis of the above, a transmission assembly 18 is arranged between the support block 9 and the two connecting blocks 15, and the transmission assembly 18 is composed of a gear 21, a first rack 22 and a second rack 23. The first rack 22 and the second rack 23 are distributed on both sides of the gear 21, and the first rack 22 and the second rack 23 are meshed with the gear 21. A fixing block 19 is connected between the bracket 7 and the opposite side of the side plate 13 by bolts. A rotating hole is penetrated on one side of the fixing block 19, and a rotating shaft 20 is rotatably connected to the inner wall of the rotating hole through a bearing. The gear 21 is fixedly sleeved on the outer wall of the rotating shaft 20. When it is necessary to adjust the tension of the yarn, the fastening bolt 4 is turned, and the fastening bolt 4 will drive the support plate 3 to move downward. At this time, the support rod 10 will bring The first pressure roller 12 is driven to move downward synchronously, and the first pressure roller 12 will drive the support block 9 to move when moving downward, and the second rack 23 will move synchronously with the movement of the support block 9. At this time, the second rack 23 drives the gear 21 to rotate through meshing, and the gear 21 drives the first rack 22 to move upward through the meshing between the gear 21 and the first rack 22. At this time, the connecting block 15 will move upward synchronously with the second rack 23, and the connecting block 15 will drive the connecting rod 16 to move upward synchronously when moving. At this time, the distance between the first pressure roller 12 and the second pressure roller 17 will gradually increase, so that the yarn can be effectively tightened through the cooperation between the first pressure roller 12 and the two second pressure rollers 17.

[0020] On the basis of the above, a support mechanism 5 is provided on one side of the top of the base 1 , and the support mechanism 5 is located on one side of the adjustment mechanism 2 .

[0021] On the basis of the above, the support mechanism 5 is composed of two support seats 24, two rotating rods 25 and two support rollers 26, and the bottom of the two support seats 24 is connected to the top of the base 1 by bolts, and the two ends of the two rotating rods 25 are rotatably connected to the two support seats 24 through bearings. The two support rollers 26 are fixedly sleeved on the outer walls of the two rotating rods 25, and are distributed up and down between the two support rollers 26.

[0022] On the basis of the above, the outer walls of the two support rollers 26 are each provided with a plurality of anti-slip grooves 27 .

[0023] Example 2, reference Figure 1-Figure 7 , a tension adjustment mechanism for a warp knitting machine. Compared with Example 1, on the basis of Example 1, a cooling mechanism 6 is provided on one side of a supporting mechanism 5, and the cooling mechanism 6 is matched with the supporting mechanism 5, and one side of the cooling mechanism 6 is located below the adjusting mechanism 2.

[0024] On the basis of the above, the cooling mechanism 6 includes a turntable 28, a pressure plate 31, an airbag 32 and a heat sink 34, and one side of the turntable 28 is connected to one of the rotating rods 25 by bolts, a pin shaft 29 is welded on one side of the turntable 28 near the top, a shaft sleeve 30 is rotatably sleeved on the outer wall of the pin shaft 29, a push rod 33 is hingedly connected between the shaft sleeve 30 and the pressure plate 31, the airbag 32 is located between the bottom of the pressure plate 31 and the top of the base 1, the bottom of the heat sink 34 is connected to the top of the base 1 by bolts, the heat sink 34 is located below the adjusting mechanism 2, a cavity 36 is opened inside the heat sink 34, and a conduit is arranged between the cavity 36 and the airbag 32.

[0025] On the basis of the above, an air jet hole 35 is opened through the top of the cavity 36, and the cross-section of the air jet hole 35 is trapezoidal, and the top size of the air jet hole 35 is larger than its bottom size, which is convenient for reducing the heat generated by the friction of the yarn, thereby facilitating the protection of the yarn and preventing the yarn from being heated and worn due to friction during the process of adjusting the tension of the yarn, thereby preventing the yarn from breaking.

[0026] In summary, with the aid of the above technical solution of the present invention: when adjusting the tension of the warp knitting machine, multiple yarns such as Figure 1The yarn tension is adjusted by rotating the fastening bolt 4, and the fastening bolt 4 drives the support plate 3 to move downward. At this time, the support rod 10 drives the first pressure roller 12 to move downward synchronously, and the first pressure roller 12 drives the support block 9 to move when moving downward, and the second rack 23 moves synchronously with the movement of the support block 9. At this time, the second rack 23 drives the gear 21 to rotate through meshing, and the gear 21 drives the first rack 22 to move upward through meshing between the gear 21 and the first rack 22. When the second rack 23 is moved, the connecting block 15 will move upward synchronously with the second rack 23, and the connecting block 15 will drive the connecting rod 16 to move upward synchronously when moving. At this time, the distance between the first pressure roller 12 and the second pressure roller 17 will gradually increase, so that the yarn can be effectively tightened by the cooperation between the first pressure roller 12 and the two second pressure rollers 17. At the same time, since the first pressure roller 12 is rotatably sleeved on the outer wall of the support rod 10, and the second pressure roller 17 is rotatably sleeved on the outer wall of the connecting rod 16, the yarn can be tightened and the yarn can be tightened at the same time. The yarn is protected from being broken due to the large tension on the yarn, and the friction between the yarn and the first pressure roller 12 and the second pressure roller 17 is reduced to prevent the yarn from being worn due to frictional heat caused by the friction, thereby causing the yarn to break. The yarn is supported by the support mechanism 5. During this period, the support roller 26 rotates under the action of the yarn tension. At this time, the turntable 28 rotates synchronously with the rotation of the rotating rod 25. At this time, the pin 29 rotates with the center of the turntable 28 as the center, and the push rod 33 rotates on the pin. The shaft 29 and the sleeve 30 drive the pressure plate 31 to move downward. At this time, the pressure plate 31 will compress the airbag 32 when moving downward. The gas inside the airbag 32 will be transported to the inside of the cavity 36 through the conduit after being squeezed, and the airflow will be ejected upward through the jet hole 35. At this time, the ejected airflow will act on the bottom of the yarn to reduce the heat generated by the friction of the yarn, thereby facilitating the protection of the yarn and preventing the yarn from being heated and worn due to friction during the process of adjusting the tension of the yarn, thereby causing the yarn to break.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A tension adjustment mechanism for a warp knitting machine, comprising a base (1), characterized in that: An adjustment mechanism (2) is provided on one side of the top of the base (1), and the adjustment mechanism (2) comprises a first pressing roller (12), two second pressing rollers (17) and a fastening bolt (4), and the two second pressing rollers (17) are symmetrically distributed on both sides of the first pressing roller (12), the top of the base (1) is connected to a bracket (7) by bolts, and through openings (8) are provided on opposite sides of the bracket (7), the inner walls of the two through openings (8) are slidably connected to support blocks (9), and a support rod (10) is connected between opposite sides of the two support blocks (9) by bolts, the first pressing roller (12) is rotatably sleeved on the outer wall of the support rod (10), the outer walls of the support rod (10) are fixedly sleeved with first limiting rings, and the first pressing roller (12) is located between the two A first limiting ring is provided between two first limiting rings, connecting plates (11) are fixed on both sides of the outer wall of the support rod (10), and the tops of the two connecting plates (11) are connected to a support plate (3) by bolts, a threaded opening is provided through the top of the bracket (7), and the threaded opening is threadedly connected to the fastening bolt (4), the bottom of the fastening bolt (4) is in contact with the top of the support plate (3), a plurality of side plates (13) are connected to both sides of the top of the base (1) by bolts, and a connecting opening (14) is provided through one side of the side plate (13), a connecting block (15) is slidably connected to the inner wall of the connecting opening (14), and one side of the connecting block (15) is connected to a connecting rod (16) by bolts, and the second pressing roller (17) is rotatably sleeved on the outer wall of the connecting rod (16).

2. A tension adjustment mechanism for a warp knitting machine according to claim 1, characterized in that: Second limiting rings are fixedly sleeved on both sides of the outer wall of the connecting rod (16), and the second pressing roller (17) is located between the two second limiting rings. The outer walls of the first pressing roller (12) and the second pressing roller (17) are both smoothly arranged.

3. A tension adjustment mechanism for a warp knitting machine according to claim 1, characterized in that: A transmission assembly (18) is arranged between the support block (9) and the two connecting blocks (15), and the transmission assembly (18) is composed of a gear (21), a first rack (22) and a second rack (23), the first rack (22) and the second rack (23) are distributed on both sides of the gear (21), and the first rack (22) and the second rack (23) are both meshed with the gear (21), a fixing block (19) is connected between the bracket (7) and the side plate (13) on the opposite side by bolts, a rotating hole is penetrated through one side of the fixing block (19), the inner wall of the rotating hole is rotatably connected to a rotating shaft (20) through a bearing, and the gear (21) is fixedly sleeved on the outer wall of the rotating shaft (20).

4. A tension adjustment mechanism for a warp knitting machine according to claim 1, characterized in that: A support mechanism (5) is provided on one side of the top of the base (1), and the support mechanism (5) is located on one side of the adjustment mechanism (2).

5. A tension adjustment mechanism for a warp knitting machine according to claim 4, characterized in that: The support mechanism (5) is composed of two support seats (24), two rotating rods (25) and two support rollers (26), wherein the bottoms of the two support seats (24) are connected to the top of the base (1) by bolts, the two ends of the two rotating rods (25) are rotationally connected to the two support seats (24) by bearings, and the two support rollers (26) are fixedly sleeved on the outer walls of the two rotating rods (25), and are distributed up and down between the two support rollers (26).

6. A tension adjustment mechanism for a warp knitting machine according to claim 5, characterized in that: The outer walls of the two support rollers (26) are each provided with a plurality of anti-slip grooves (27).

7. A tension adjustment mechanism for a warp knitting machine according to claim 4, characterized in that: A cooling mechanism (6) is provided on one side of the support mechanism (5), and the cooling mechanism (6) and the support mechanism (5) are matched with each other, and one side of the cooling mechanism (6) is located below the adjustment mechanism (2).

8. A tension adjustment mechanism for a warp knitting machine according to claim 7, characterized in that: The cooling mechanism (6) comprises a rotating disk (28), a pressing plate (31), an airbag (32) and a heat sink (34), and one side of the rotating disk (28) is connected to one of the rotating rods (25) by bolts. A pin shaft (29) is welded to a position near the top of one side of the rotating disk (28). A shaft sleeve (30) is rotatably sleeved on the outer wall of the pin shaft (29). A push rod (33) is connected between the shaft sleeve (30) and the pressing plate (31) by a hinge. The airbag (32) is located between the bottom of the pressing plate (31) and the top of the base (1). The bottom of the heat sink (34) is connected to the top of the base (1) by bolts. The heat sink (34) is located below the adjusting mechanism (2). A cavity (36) is provided inside the heat sink (34). A conduit is provided between the cavity (36) and the airbag (32).

9. A tension adjustment mechanism for a warp knitting machine according to claim 8, characterized in that: An air jet hole (35) is formed through the top of the cavity (36), and the cross section of the air jet hole (35) is trapezoidal, with the top size of the air jet hole (35) being larger than the bottom size thereof.

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