Winding mandrel of tufting machine

Abstract

The utility model discloses a winding mandrel of a tufting machine, which comprises a rotating shaft and a chain wheel arranged at the rear end of the rotating shaft, and is characterized by comprising a sleeve body and a plurality of outer arc sheets, the sleeve body is fixedly sleeved on a shaft body of the rotating shaft, and the outer surface of the sleeve body is provided with external threads; the central frame body is fixedly sleeved on the shaft body of the rotating shaft; the outer arc sheet is mounted on the outer surface of the central frame body; the rear end of the adjusting mechanism is in threaded connection with the external threads on the outer surface of the sleeve body, the front end of the adjusting mechanism is connected with the center frame body and drives the outer arc pieces to move inwards or outwards, the mandrel is provided with the adjusting mechanism, the distance between the outer arc pieces and the axis is conveniently adjusted, and therefore the numerical value of the diameter of the mandrel is adjusted.

Description

Technical Field

[0001] The utility model belongs to the technical field of winding machines, and in particular relates to a winding core shaft of a tufting machine. Background Art

[0002] With the development of society, cars have entered ordinary families. As an accessory for cars, car floor mats have a broad market. When producing car floor mats, the base fabric needs to be woven through a tufting machine, and then the corresponding parts of the base fabric are planted. The semi-finished products after tufting need to be wound into material rolls for later gluing operations.

[0003] The winding of the tufting machine requires a winding mandrel, which includes a rotating shaft body, a coaxial roller body arranged outside the shaft body, a sprocket is sleeved on one end of the shaft body, and a motor is connected by a chain. The rotation of the motor drives the mandrel to rotate to realize the winding operation of the fabric.

[0004] The roller structure of the traditional mandrel is a cylinder, which is connected to the shaft body of the shaft through multiple connecting rods to realize an integrated structure. The diameter of this roller body cannot be changed, and is not suitable for occasions where the diameter of the roller body needs to be changed. Utility Model Content

[0005] The utility model aims to provide a winding mandrel of a tufting machine to solve the above-mentioned shortcomings.

[0006] The technical solution adopted by the utility model is: a winding mandrel of a tufting machine, comprising a rotating shaft and a sprocket arranged at the rear end of the rotating shaft, comprising a sleeve body and a plurality of outer arc pieces, the sleeve body is fixedly sleeved on the shaft body of the rotating shaft, and the outer surface of the sleeve body is provided with an external thread;

[0007] The central frame is fixedly sleeved on the shaft of the rotating shaft, and the outer arc piece is installed on the outer surface of the central frame;

[0008] The rear end of the adjustment mechanism is spirally connected to the external thread on the outer surface of the sleeve body, and the front end is connected to the central frame body and drives the outer arc piece to move inward or outward.

[0009] Furthermore, the central frame includes fixed circular plates arranged at both ends, and the fixed circular plates are fixedly connected to the rotating shaft;

[0010] Connecting plate components equal in number to the outer arc pieces are provided on the outer circumferences of the two fixed circular plates;

[0011] A first convex ring body protruding outward is provided at the outer end of the fixed circular plate and at the axis, and the left and right ends of the connecting plate assembly are respectively connected to the first convex ring body through a connecting piece;

[0012] Each connecting plate assembly is formed by a plurality of connecting plates connected in series, an adjusting wedge plate is arranged between two connecting plates, and an adjusting inclined surface is arranged on the bottom surface of the adjusting wedge plate.

[0013] Further, the adjustment mechanism includes an adjustment circular plate arranged at the rear end, and the adjustment circular plate is spirally connected to the external thread of the sleeve body;

[0014] A second convex ring body protruding forward is provided at the front end of the adjusting circular plate and located at the axis;

[0015] The plane thrust bearing is sleeved on the rear side of the outer surface of the second convex ring body, and a thrust plate is arranged in front of the plane thrust bearing;

[0016] A number of push tubes is arranged in a circular array along the axis of the push plate, which number is equal to the number of the outer arc plates. The push tubes penetrate the nearest fixed circular plates. An adjustment cone corresponding to the adjustment wedge plates is arranged between the two fixed circular plates. An adjustment inclined groove corresponding to the adjustment inclined surface is arranged on the outer conical surface of the adjustment cone. The adjustment inclined surface is inserted into the adjustment inclined groove.

[0017] The plurality of adjusting cones are connected into one body through connecting rods, and the connecting rods correspond to the push tubes one by one and are connected to each other to transmit thrust;

[0018] A connecting arc block is also provided on the outer conical surface of the adjusting cone, and the connecting arc block is located between the two connecting plate components;

[0019] A second groove is provided on the top of the connecting arc block, and a convex ring is provided on the inner wall of the outer arc piece, and the convex ring is clamped in the second groove;

[0020] A rotating handle is also arranged on the adjusting circular plate for easy manual rotation.

[0021] Beneficial Effects

[0022] The core shaft is provided with an adjustment mechanism to facilitate adjustment of the distance between the outer arc piece and the axis, thereby adjusting the value of the core shaft diameter. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural diagram of the utility model;

[0024] Figure 2 It is a cross-sectional view of the utility model;

[0025] Figure 3 This is the central frame diagram of the utility model;

[0026] Figure 4 and Figure 5 is a schematic diagram of the adjustment mechanism of the utility model;

[0027] in:

[0028] 1-rotating shaft, 2-sprocket, 3-center frame, 4-adjusting mechanism, 5-sleeve body;

[0029] 31-fixed circular plate, 32-connecting piece, 33-connecting plate, 34-adjusting wedge plate, 35-connecting arc block, 36-outer arc piece;

[0030] 311 - first convex ring body, 341 - first groove, 342 - adjustment slope, 351 - second groove, 361 - convex ring;

[0031] 41-adjusting circular plate, 42-plane thrust bearing, 43-push plate, 44-push tube, 45-adjusting cone, 46-connecting rod;

[0032] 411 - second convex ring body, 412 - rotating handle, 451 - adjusting inclined groove. DETAILED DESCRIPTION

[0033] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0034] See also Figures 1 to 5 A winding mandrel of a tufting machine, comprising a rotating shaft 1 and a sprocket 2 arranged at the rear end of the rotating shaft 1, and also comprising a sleeve body 5 and four outer arc pieces 36, wherein the sleeve body 5 is fixedly sleeved on the shaft body of the rotating shaft 1, and the outer surface of the sleeve body 5 is provided with an external thread;

[0035] The central frame body 3 is fixedly sleeved on the shaft body of the rotating shaft 1, and the outer arc piece 36 is installed on the outer surface of the central frame body 3;

[0036] The rear end of the adjustment mechanism 4 is spirally connected to the external thread on the outer surface of the sleeve body 5, and the front end is connected to the central frame body 3 and drives the outer arc piece 36 to move inward or outward.

[0037] The central frame 3 includes fixed circular plates 31 arranged at both ends, and the fixed circular plates 31 are fixedly connected to the rotating shaft 2;

[0038] The outer circumferences of the two fixed circular plates 31 are provided with connecting plate components equal in number to the outer arc pieces 36;

[0039] A first convex ring body 311 protruding outward is provided at the outer end of the fixed circular plate 31 and at the axis thereof, and the left and right ends of the connecting plate assembly are respectively connected to the first convex ring body 311 through a connecting piece 32;

[0040] Each connecting plate assembly is composed of a plurality of connecting plates 33 connected in series. The top of the connecting member 32 penetrates the connecting plate 33 to provide a certain guiding effect on the connecting plate 33. An adjusting wedge plate 34 is arranged between two connecting plates 33. The bottom surface of the adjusting wedge plate 34 is provided with an adjusting inclined surface 342. A first groove 341 can be opened on the top of the adjusting wedge plate 34 to reduce weight.

[0041] The adjustment mechanism 4 includes an adjustment circular plate 41 disposed at the rear end, and the adjustment circular plate 41 is screwed to the external thread of the sleeve body 5;

[0042] A second convex ring body 411 convex forwardly is provided at the front end of the adjusting circular plate 41 and at the axis thereof;

[0043] The bearing sleeve of the plane thrust shaft 42 is arranged on the rear side of the outer surface of the second convex ring body 411, and a thrust plate 43 is arranged in front of the plane thrust bearing 42;

[0044] The number of push tubes 44 in the array along the axis circumference of the push plate 43 is equal to the number of the outer arc pieces 36, and the push tubes 44 penetrate the nearest fixed circular plate 31. An adjustment cone 45 corresponding to the adjustment wedge plate 34 is provided between the two fixed circular plates 31, and the outer cone surface of the adjustment cone 45 is provided with an adjustment inclined groove 451 corresponding to the adjustment inclined surface 342, and the adjustment inclined surface 342 is inserted into the adjustment inclined groove 451;

[0045] The plurality of adjusting cones 45 are connected to form a whole through connecting rods 46, and the connecting rods 46 correspond to the push tubes 44 one by one and are connected to each other to transmit thrust;

[0046] A connecting arc block 35 is also provided on the outer conical surface of the adjusting cone 45, and the connecting arc block 35 is located between the two connecting plate components;

[0047] A second groove 351 is provided on the top of the connecting arc block 35, and a convex ring 361 is provided on the inner wall of the outer arc piece 36, and the convex ring 361 is stuck in the second groove 351;

[0048] A rotating handle 412 is also provided on the adjusting circular plate 41 for easy manual rotation;

[0049] By turning the rotating handle 412, the adjusting circular plate 41 moves forward along the axis of the sleeve body 5, and the push tube 44 pushes the adjusting cone 45 to move together. Under the action of the adjusting wedge plate 34, the adjusting cone 45 moves upward, driving the connecting arc block 35 to move together, and then driving the outer arc piece 36 to move together;

[0050] When the sprocket 2 rotates, the adjusting circular plate 41 is installed on the sleeve body 5, and the sleeve body 5 is fixedly connected to the rotating shaft 1 so they move together. The fixed circular plate 31 is also fixedly connected to the rotating shaft 1. The adjusting wedge plate 34 is inserted in the adjusting bevel groove 451 of the adjusting cone 45 and the rotation direction is just perpendicular to the direction of the adjusting bevel groove 451, so they are driven to rotate together, and then the outer arc piece 36 is driven to rotate together.

[0051] The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A winding mandrel of a tufting machine, comprising a rotating shaft and a sprocket arranged at the rear end of the rotating shaft, characterized in that: It comprises a sleeve body and a plurality of outer arc pieces, wherein the sleeve body is fixedly sleeved on the shaft body of the rotating shaft, and the outer surface of the sleeve body is provided with an external thread; The central frame is fixedly sleeved on the shaft of the rotating shaft, and the outer arc piece is installed on the outer surface of the central frame; The rear end of the adjustment mechanism is spirally connected to the external thread on the outer surface of the sleeve body, and the front end is connected to the central frame body and drives the outer arc piece to move inward or outward.

2. The winding mandrel of a tufting machine according to claim 1, characterized in that: The central frame includes fixed circular plates arranged at both ends, and the fixed circular plates are fixedly connected to the rotating shaft; The outer circumferences of the two fixed circular plates are provided with connecting plate components having the same number as the outer arc pieces; A first convex ring body protruding outward is provided at the outer end of the fixed circular plate and at the axis, and the left and right ends of the connecting plate assembly are respectively connected to the first convex ring body through a connecting piece; Each connecting plate assembly is formed by a plurality of connecting plates connected in series, an adjusting wedge plate is arranged between two connecting plates, and an adjusting inclined surface is arranged on the bottom surface of the adjusting wedge plate.

3. The winding mandrel of a tufting machine according to claim 2, characterized in that: The adjustment mechanism comprises an adjustment circular plate arranged at the rear end, and the adjustment circular plate is spirally connected to the external thread of the sleeve body; A second convex ring body protruding forward is provided at the front end of the adjusting circular plate and located at the axis; The plane thrust bearing is sleeved on the rear side of the outer surface of the second convex ring body, and a thrust plate is arranged in front of the plane thrust bearing; A number of push tubes is arranged in a circular array along the axis of the push plate, which number is equal to the number of the outer arc plates. The push tubes penetrate the nearest fixed circular plates. An adjustment cone corresponding to the adjustment wedge plates is arranged between the two fixed circular plates. An adjustment inclined groove corresponding to the adjustment inclined surface is arranged on the outer conical surface of the adjustment cone. The adjustment inclined surface is inserted into the adjustment inclined groove. The plurality of adjusting cones are connected into one body through connecting rods, and the connecting rods correspond to the push tubes one by one and are connected to each other to transmit thrust; A connecting arc block is also provided on the outer conical surface of the adjusting cone, and the connecting arc block is located between the two connecting plate components; A second groove is provided on the top of the connecting arc block, and a convex ring is provided on the inner wall of the outer arc piece, and the convex ring is clamped in the second groove; A rotating handle is also arranged on the adjusting circular plate for easy manual rotation.

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