Double-color tufting machine

Abstract

The utility model discloses a double-color tufting machine which comprises a flocking mechanism and a pile cutting mechanism, a needle bed is formed by combining a first needle bed and a second needle bed which are horizontally arranged and mutually embedded together, and tufting needles are installed on the first needle bed and the second needle bed. Tufting needles installed on the first needle bed and tufting needles installed on the second needle bed are located on the same horizontal line, the first needle bed is driven by a first driving mechanism to move up and down in the vertical direction, the second needle bed is driven by a second driving mechanism to move up and down in the vertical direction, and first guide plates are arranged at one end or two ends of the first needle bed. A second guide plate is arranged at one end or two ends of the second needle bed, and the first guide plate and the second guide plate are vertically arranged and are driven by a third driving mechanism to transversely move. According to the double-color tufting machine, knitting wool or grass yarns with two colors are implanted into the same position of the gray fabric or the single tufting machine under the condition that the number of needles implanted in the unit area of the gray fabric is not changed, the double-color effect is achieved, the production efficiency is improved, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to a processing device for producing artificial turf, carpets, blankets, etc., and specifically relates to a tufting machine, belonging to the technical field of textile equipment. Background Art

[0002] Existing tufting machines for producing artificial turf, carpets, blankets, etc., such as the structure disclosed in a Chinese utility model patent ZL202120975892.2, named a tufting machine for producing a ground elastic turf, include a frame, a cloth support plate, a needle base, needles, a main hook base, a main hook knife, a secondary hook base, and a secondary hook knife. The cloth support plate is mounted on the frame. The needle base is arranged parallel to the upper side of the cloth support plate. The needles are multiple and are equally spaced and fixed on the side of the needle base close to the cloth support plate. The cloth support plate is provided with a plurality of cloth support plate holes for the needles to pass through at positions matching the needles. The secondary hook base is arranged below the cloth support plate. The secondary hook knives are the same number as the needles and are equally spaced and fixed on the side of the secondary hook base close to the cloth support plate. The main hook base is arranged parallel to the lower side of the cloth support plate. The main hook knives are multiple and are matched with the secondary hook knives. The main hook knives are fixed on the side of the main hook base close to the secondary hook base. The tufting machine further includes a needle base driving mechanism for driving the up-and-down movement of the cloth support plate to drive the needles to move up and down along the cloth support plate holes, a main hook driving mechanism for driving the front-and-back movement of the main hook base to drive the main hook knives to pick up or release threads from the needles, a secondary hook driving mechanism for driving the front-and-back movement of the secondary hook base to drive the secondary hook knives to pick up or release threads from the main hook knives, and a main driving mechanism for driving the needle base driving mechanism, the main hook driving mechanism, and the secondary hook driving mechanism to be linked.

[0003] The existing tufting machines have the following disadvantages in the actual production process: Since they use a single needle bed to move up and down to drive the tufting needles installed on the bottom surface of the needle bed to implant yarns or grass filaments on the base fabric, during operation, the needle bed only moves up and down, and the yarns or grass filaments in the formed product are all of the same color. If the product requires two colors of yarns or grass filaments in the same position on the base fabric or in the case of the same number of needles implanted per unit area of the base fabric, that is, to form a two-color effect, it is necessary to first uniformly implant the first color of yarns or grass filaments on the base fabric on one tufting machine, and then go to another tufting machine to implant the second color of yarns or grass filaments on the base fabric. That is, secondary processing is required to form a two-color effect, resulting in low production efficiency and high production cost of the product. Summary of the Invention

[0004] The technical problem to be solved by the present utility model is to overcome the deficiencies of the prior art and provide a double-color tufting machine that can implant two-color yarns or grass filaments at the same position on the same piece of base fabric or implant the same number of needles per unit area of the base fabric with only a single tufting machine, forming a product with a two-color effect, which can greatly improve production efficiency and reduce production costs.

[0005] To solve the above technical problem, the present utility model adopts such a double-color tufting machine, which includes a flocking mechanism for implanting yarns or grass filaments into a base fabric and a cutting mechanism for cutting the yarns or grass filaments implanted into the base fabric. The flocking mechanism includes a needle bed and tufting needles, and the cutting mechanism includes a cutting hook and a cutting blade. The needle bed is composed of a first needle bed and a second needle bed that are horizontally arranged and mutually embedded. The tufting needles are vertically installed on the first needle bed and the second needle bed, and the tufting needles installed on the first needle bed and the tufting needles installed on the second needle bed are on the same horizontal line. The first needle bed is driven by a first driving mechanism to move up and down in the vertical direction, and the second needle bed is driven by a second driving mechanism to move up and down in the vertical direction. At one end or both ends of the first needle bed, there are first guide plates, and at one end or both ends of the second needle bed, there are second guide plates. The first guide plates and the second guide plates are vertically arranged and driven by a third driving mechanism to move horizontally.

[0006] As a preferred embodiment of the present utility model, the front side of the first needle bed is provided with a plurality of first convex teeth and first grooves arranged at intervals, and the rear side of the second needle bed is provided with a plurality of second convex teeth and second grooves arranged at intervals. The first convex teeth of the first needle bed are embedded in the second grooves of the second needle bed, and the second convex teeth of the second needle bed are embedded in the first grooves of the first needle bed. The tufting needles are vertically installed on the first convex teeth of the first needle bed and the second convex teeth of the second needle bed.

[0007] As a preferred embodiment of the present utility model, first guide plates are respectively fixedly installed at both ends of the first needle bed, and second guide plates are respectively fixedly installed at both ends of the second needle bed. The first guide plates and the second guide plates are both rectangular plates with a rectangular cross-section. A vertically arranged first guide groove is provided on the outer side of the first guide plate, and a vertically arranged second guide groove is provided on the outer side of the second guide plate. The third driving mechanism includes a third motor, a swing rod, a pin shaft, and rollers. One end of the swing rod is installed on the output shaft of the third motor, the pin shaft is installed at the other end of the swing rod, and there are two rollers which are respectively installed at both ends of the pin shaft, and the two rollers respectively roll and are embedded in the first guide groove and the second guide groove.

[0008] As a preferred embodiment of the present utility model, the first guiding groove and the second guiding groove are rectangular grooves, the roller adopts a bearing, and the roller is in sliding fit with the first guiding groove and the second guiding groove in the vertical direction.

[0009] As a preferred embodiment of the present utility model, a first guiding plate is fixedly installed at one end of the first needle bed, and a second guiding plate is fixedly installed at one end of the second needle bed. The first guiding plate and the second guiding plate are both concave plates with a concave cross-section. The first guiding plate includes a first inner plate and a first outer plate arranged in parallel. The first inner plate is fixedly connected to one end of the first needle bed. The second guiding plate includes a second inner plate and a second outer plate arranged in parallel. The second inner plate is fixedly connected to one end of the second needle bed. The third driving mechanism includes an electric cylinder, a connecting rod, a pin shaft and rollers. One end of the connecting rod is connected to the telescopic rod of the electric cylinder. There are two pin shafts which are installed on the rod body of the connecting rod in parallel and at intervals. There are four rollers which are installed at both ends of the pin shaft in pairs and opposite to each other. The first outer plate of the first guiding plate and the second outer plate of the second guiding plate are respectively placed between the rollers arranged in pairs and opposite to each other in a rolling fit.

[0010] As a preferred embodiment of the present utility model, the first driving mechanism includes a first rotating shaft, a first eccentric wheel, a first eccentric sleeve connecting rod, a first output shaft, a first slider and a first guide rail. The first rotating shaft is rotatably installed on the frame of the double-color tufting machine or on the side plate of the transmission box body and is driven to rotate by a first motor. The first eccentric wheel is fixedly installed on the first rotating shaft. The upper end of the first eccentric sleeve connecting rod is sleeved on the first eccentric wheel. The lower end of the first eccentric sleeve connecting rod is rotatably connected to the upper end of the first output shaft. The lower end of the first output shaft is fixedly connected to the first slider. The first output shaft is vertically arranged and is in sliding fit with the frame of the double-color tufting machine or the bottom plate of the transmission box body. The first guide rail is fixedly installed on the first needle bed. The first slider is slidably connected to the first guide rail in the horizontal direction. The second driving mechanism includes a second rotating shaft, a second eccentric wheel, a second eccentric sleeve connecting rod, a second output shaft, a second slider and a second guide rail. The second rotating shaft is rotatably installed on the frame of the double-color tufting machine or on the side plate of the transmission box body and is driven to rotate by a second motor. The second eccentric wheel is fixedly installed on the second rotating shaft. The upper end of the second eccentric sleeve connecting rod is sleeved on the second eccentric wheel. The lower end of the second eccentric sleeve connecting rod is rotatably connected to the upper end of the second output shaft. The lower end of the second output shaft is fixedly connected to the second slider. The second output shaft is vertically arranged and is in sliding fit with the frame of the double-color tufting machine or the bottom plate of the transmission box body. The second guide rail is fixedly installed on the second needle bed. The second slider is slidably connected to the second guide rail in the horizontal direction.

[0011] As a preferred embodiment of the present utility model, the first slider and the first guide rail are slidably connected through a dovetail groove, or a triangular groove, or a trapezoidal groove, or a rectangular groove structure, and the second slider and the second guide rail are slidably connected through a dovetail groove, or a triangular groove, or a trapezoidal groove, or a rectangular groove structure.

[0012] As a preferred embodiment of the present utility model, the distance between the tufting needles mounted on the first convex teeth is one needle pitch, and the distance between the tufting needles mounted on the first convex teeth and the tufting needles mounted on the second convex teeth is half a needle pitch.

[0013] As a preferred embodiment of the present utility model, vertically arranged first positioning holes and second positioning holes are respectively formed in the first convex tooth and the second convex tooth, and the upper needle bodies of the tufting needles are inserted into the first positioning holes and the second positioning holes and fixed by set screws.

[0014] As a preferred embodiment of the present utility model, the first convex tooth and the second groove are adapted in size and shape, the second convex tooth and the first groove are adapted in size and shape, and the cross-sectional shapes of the first convex tooth, the second convex tooth, the first groove, and the second groove are rectangular, or triangular, or trapezoidal, or dovetail-shaped.

[0015] After adopting the above structure, the present utility model has the following beneficial effects:

[0016] The needle bed adopted by the double-color tufting machine of the present utility model is composed of a first needle bed and a second needle bed which are horizontally arranged and mutually embedded. The tufting needles are mounted on the first needle bed and the second needle bed, and the tufting needles mounted on the first needle bed and the tufting needles mounted on the second needle bed are on the same horizontal line. The first needle bed is driven by a first driving mechanism to move up and down in the vertical direction, and the second needle bed is driven by a second driving mechanism to move up and down in the vertical direction. At one end or both ends of the first needle bed, there is a first guide plate, and at one end or both ends of the second needle bed, there is a second guide plate. During operation, only the first color of yarn or grass silk is threaded into the tufting needles of the first needle bed, and at the same time, the second color of yarn or grass silk is threaded into the tufting needles of the second needle bed. After the first driving mechanism drives the first needle bed to move up and down to implant the first color of yarn or grass silk on the base fabric, a third driving mechanism drives the first guide plate and the second guide plate to move horizontally and drives the second needle bed to move horizontally to the working position of the first needle bed. Preferably, the second needle bed moves horizontally by half a needle pitch. The second driving mechanism drives the second needle bed to move up and down to implant the second color of yarn or grass silk on the base fabric, thereby forming a double-color effect, so that the completed product has both the first color and the second color of yarn or grass silk at the same time. The present utility model greatly improves the production efficiency and reduces the production cost.

[0017] The utility model uses a single tufting machine to implant two-color yarns or grass filaments at the same position on the same area of the base fabric while keeping the number of needles implanted per unit area of the base fabric unchanged, so as to realize a product with a two-color effect, and greatly reduce the manufacturing cost of the product.

[0018] The structure of the utility model is simple, and it is very convenient for processing and operation. Brief Description of the Drawings

[0019] The following further describes in detail the specific embodiments of the utility model with reference to the drawings.

[0020] Figure 1 It is a schematic structural diagram of a two-color tufting machine of the utility model. The first, second guide plates and the third driving mechanism are not shown in the figure.

[0021] Figure 2 It is a schematic structural diagram of a flocking mechanism in the utility model.

[0022] Figure 3 It is a schematic structural diagram of the first connection structure between the first, second guide plates and the third driving mechanism and the first, second needle beds in the utility model.

[0023] Figure 4 It is a schematic structural diagram of a needle bed in the utility model.

[0024] Figure 5 It is a schematic structural diagram of a first needle bed in the utility model.

[0025] Figure 6 It is a schematic structural diagram of the first guide plate fixedly installed at both ends of the first needle bed in the utility model.

[0026] Figure 7 It is a schematic structural diagram of a second needle bed in the utility model.

[0027] Figure 8 It is a schematic structural diagram of the second guide plate fixedly installed at both ends of the second needle bed in the utility model.

[0028] Figure 9 It is a schematic structural diagram of a tufting needle in the utility model.

[0029] Figure 10 It is a schematic structural diagram of the second connection structure between the first, second guide plates and the third driving mechanism and the first, second needle beds in the utility model.

[0030] Figure 11 It is a schematic structural diagram of the third connection structure between the first, second guide plates and the third driving mechanism and the first, second needle beds in the utility model. Specific Embodiments

[0031] SeeFigures 1 to 11 A two-color tufting machine as shown includes a flocking mechanism A for implanting yarn or grass filaments into a base fabric C and a cutting mechanism B for cutting the yarn or grass filaments implanted into the base fabric C. The flocking mechanism A includes a needle bed and tufting needles 3. The cutting mechanism B includes a cutting hook 6 and a cutting blade 7. The needle bed is composed of a first needle bed 1 and a second needle bed 2 that are horizontally arranged and fitted together. The tufting needles 3 are vertically installed on the first needle bed 1 and the second needle bed 2, and the tufting needles 3 installed on the first needle bed 1 and the tufting needles 3 installed on the second needle bed 2 are on the same horizontal line D. The first needle bed 1 is driven by a first driving mechanism to move up and down in the vertical direction, and the second needle bed 2 is driven by a second driving mechanism to move up and down in the vertical direction. At one end or both ends of the first needle bed 1, there is a first guide plate 4, and at one end or both ends of the second needle bed 2, there is a second guide plate 5. The first guide plate 4 and the second guide plate 5 are vertically arranged and driven by a third driving mechanism to move horizontally. In the present invention, the cutting mechanism B preferably adopts Figure 1 the well-known conventional structure as shown, such as Figure 1 as shown, the cutting hook 6 is fixedly installed on a hook knife seat, the hook knife seat is fixedly installed on a hook knife bed, the hook knife bed is fixedly installed at the upper end of a first swing arm 27, the lower end of the first swing arm 27 is fixedly installed on a first swing shaft 28, and the first swing shaft 28 is driven by a motor to swing. The cutting blade 7 is fixedly installed on a blade seat, the blade seat is fixedly installed on a blade bed, the blade bed is fixedly installed at the upper end of a second swing arm 29, the lower end of the second swing arm 29 is fixedly installed on a second swing shaft 30, and the second swing shaft 30 is driven by a motor to swing. During operation, the first swing arm 27 and the second swing arm 29 swing towards each other and simultaneously drive the cutting hook 6 and the cutting blade 7 to swing towards each other, thereby cutting the yarn or grass filaments implanted at the bottom of the base fabric C. The cutting mechanism B of the present invention can also adopt other well-known structures. For example, instead of swinging, the cutting hook 6 and the cutting blade 7 adopt horizontal movement and vertical movement to cut the yarn or grass filaments, which will not be elaborated here.

[0032] As a preferred embodiment of the present invention, as shown in Figures 4 to 8As shown, the first needle bed 1 is strip-shaped and preferably has an inverted L-shaped cross-section. A plurality of first convex teeth 1a and first grooves 1b are arranged at intervals on the front side of the first needle bed 1. The second needle bed 2 is strip-shaped and preferably has an inverted L-shaped cross-section. Preferably, the second needle bed 2 is symmetrically arranged with the first needle bed 1. A plurality of second convex teeth 2a and second grooves 2b are arranged at intervals on the rear side of the second needle bed 2. The first convex teeth 1a of the first needle bed 1 are fitted into the second grooves 2b of the second needle bed 2, and the second convex teeth 2a of the second needle bed 2 are fitted into the first grooves 1b of the first needle bed 1. The tufting needles 3 are vertically installed on the first convex teeth 1a of the first needle bed 1 and the second convex teeth 2a of the second needle bed 2.

[0033] As a preferred embodiment of the present utility model, as Figures 2 to 8 shown, first guide plates 4 are respectively fixedly installed at both ends of the first needle bed 1 by bolts. Second guide plates 5 are respectively fixedly installed at both ends of the second needle bed 2 by bolts. The first guide plates 4 and the second guide plates 5 are both rectangular plates with a rectangular cross-section. A vertically arranged first guide groove 4a is provided on the outer side of the first guide plate 4, and a vertically arranged second guide groove 5a is provided on the outer side of the second guide plate 5. The third driving mechanism includes a third motor 8, a swing rod 9, a pin shaft 10 and rollers 11. The third motor 8 is fixedly installed on the frame of the double-color tufting machine, and the frame is not shown in the figure. A speed reducer is preferably provided at the front end of the third motor 8. One end (the upper end in the figure) of the swing rod 9 is fixedly installed on the output shaft of the third motor 8 by a bolt. The pin shaft 10 is installed at the other end (the lower end in the figure) of the swing rod 9. There are two rollers 11, which are respectively installed at both ends of the pin shaft 10, and the two rollers 11 are respectively rolling and fitted in the first guide groove 4a and the second guide groove 5a. In the present utility model, the first guide plate 4 can also be an integral part integrally formed with the first needle bed 1, and the second guide plate 5 can also be an integral part integrally formed with the second needle bed 2.

[0034] As a preferred embodiment of the present utility model, as Figure 2 、 3 、6, 8 shown, the first guide groove 4a and the second guide groove 5a are rectangular grooves. The rollers 11 are bearings, and the rollers 11 are in sliding fit with the first guide groove 4a and the second guide groove 5a in the vertical direction.

[0035] As a preferred embodiment of the present utility model, as Figure 10As shown, a first guide plate 4 is fixedly installed at one end of the first needle bed 1, and a second guide plate 5 is fixedly installed at one end of the second needle bed 2. Both the first guide plate 4 and the second guide plate 5 are concave plates with a concave cross-section. The first guide plate 4 includes a first inner plate 4-1 and a first outer plate 4-2 arranged in parallel. The first inner plate 4-1 is fixedly connected to one end of the first needle bed 1 by bolts. The second guide plate 5 includes a second inner plate 5-1 and a second outer plate 5-2 arranged in parallel. The second inner plate 5-1 is fixedly connected to one end of the second needle bed 2 by bolts. The third driving mechanism includes an electric cylinder 12, a connecting rod 13, a pin shaft 10, and a roller 11. The electric cylinder 12 is fixedly installed on the frame of the double-color tufting machine, and the frame is not shown in the figure. The electric cylinder 12 preferably adopts a servo electric cylinder of a servo motor. One end of the connecting rod 13 is fixedly connected to the telescopic rod of the electric cylinder 12 by threaded connection. There are two pin shafts 10, which are installed on the rod body of the connecting rod 13 in parallel and at intervals. There are four rollers 11, which are installed at both ends of the pin shaft 10 in pairs. The first outer plate 4-2 of the first guide plate 4 and the second outer plate 5-2 of the second guide plate 5 are respectively placed between the rollers 11 arranged in pairs in a rolling fit. During operation, the electric cylinder 12 drives the first guide plate 4 and the second guide plate 5 to move horizontally left and right through the rollers 11 arranged in pairs on the connecting rod 13, thereby driving the first needle bed 1 and the second needle bed 2 to move horizontally left and right simultaneously.

[0036] As a preferred embodiment of the present invention, as Figure 1 , 2As shown in the figure, the first driving mechanism includes a first rotating shaft 14, a first eccentric wheel 15, a first eccentric sleeve connecting rod 16, a first output shaft 17, a first slider 18 and a first guide rail 19. The first rotating shaft 14 is rotatably installed on the frame of the double-color tufting machine or the side plate of the transmission box body 26 through a bearing seat and is driven to rotate by a first motor. The first eccentric wheel 15 is fixedly installed on the first rotating shaft 14. The upper end of the first eccentric sleeve connecting rod 16 is preferably sleeved on the first eccentric wheel 15 through a bearing. The lower end of the first eccentric sleeve connecting rod 16 is rotatably connected to the upper end of the first output shaft 17 through a short shaft and a bearing. The lower end of the first output shaft 17 is fixedly connected to the first slider 18 through a bolt. The first output shaft 17 is vertically arranged and is slidably matched with the frame of the double-color tufting machine or the bottom plate of the transmission box body 26 through a linear bearing 31 or a bushing. The first guide rail 19 is fixedly installed on the first needle bed 1 through a bolt. The first slider 18 is slidably connected to the first guide rail 19 in the horizontal direction. The second driving mechanism includes a second rotating shaft 20, a second eccentric wheel 21, a second eccentric sleeve connecting rod 22, a second output shaft 23, a second slider 24 and a second guide rail 25. The second rotating shaft 20 is rotatably installed on the frame of the double-color tufting machine or the side plate of the transmission box body 26 through a bearing seat and is driven to rotate by a second motor. The second eccentric wheel 21 is fixedly installed on the second rotating shaft 20. The upper end of the second eccentric sleeve connecting rod 22 is preferably sleeved on the second eccentric wheel 21 through a bearing. The lower end of the second eccentric sleeve connecting rod 22 is rotatably connected to the upper end of the second output shaft 23 through a short shaft and a bearing. The lower end of the second output shaft 23 is fixedly connected to the second slider 24 through a bolt. The second output shaft 23 is vertically arranged and is slidably matched with the frame of the double-color tufting machine or the bottom plate of the transmission box body 26 through a linear bearing 31 or a bushing. The second guide rail 25 is fixedly installed on the second needle bed 2 through a bolt. The second slider 24 is slidably connected to the second guide rail 25 in the horizontal direction. The first motor and the second motor are not shown in the figure. In the present invention, a crankshaft can also be used to replace the first rotating shaft 14, the first eccentric wheel 15 or the second rotating shaft 20, the second eccentric wheel 21, and the crankshaft is not shown in the figure.

[0037] As a preferred embodiment of the present invention, the first slider 18 is slidably connected to the first guide rail 19 through a dovetail groove or a triangular groove or a trapezoidal groove or a rectangular groove structure, and the second slider 24 is slidably connected to the second guide rail 25 through a dovetail groove or a triangular groove or a trapezoidal groove or a rectangular groove structure. During implementation, a protruding dovetail-shaped convex block or triangular convex block or trapezoidal convex block or rectangular convex block is provided on the first slider 18 and the second slider 24. Figure 1 、 2 Only a triangular convex block is shown. A dovetail-shaped groove or a triangular groove or a trapezoidal groove or a rectangular groove is correspondingly provided on the first guide rail 19 and the second guide rail 25.Figure 1 , 2 Only the triangular grooves are shown, and the bumps can slide within the corresponding grooves.

[0038] As a preferred embodiment of the present utility model, as Figures 2 to 8 shown, the distance between the tufting needles 3 mounted on the first convex teeth 1a is one needle pitch W, and the distance between the tufting needles 3 mounted on the first convex teeth 1a and the tufting needles 3 mounted on the second convex teeth 2a is half a needle pitch W.

[0039] As a preferred embodiment of the present utility model, as Figures 5 to 9 shown, vertically arranged first positioning holes 1c and second positioning holes 2c are respectively formed in the first convex teeth 1a and the second convex teeth 2a. The upper needle bodies 3a of the tufting needles 3 are inserted into the first positioning holes 1c and the second positioning holes 2c and fixed by set screws, and the set screws are not shown in the figure.

[0040] As a preferred embodiment of the present utility model, as Figures 2 to 8 shown in FIGS. 9, 10, and 11, the first convex teeth 1a are adapted in size and shape to the second grooves 2b, the second convex teeth 2a are adapted in size and shape to the first grooves 1b, and the cross-sectional shapes of the first convex teeth 1a, the second convex teeth 2a, the first grooves 1b, and the second grooves 2b are rectangular or triangular or trapezoidal or dovetail-shaped, etc. Only the rectangular cross-section is shown in the figure, and other shapes are not shown.

[0041] As a preferred embodiment of the present utility model, as Figure 11 shown, first guide plates 4 are respectively provided at both ends of the first needle bed 1, second guide plates 5 are respectively provided at both ends of the second needle bed 2. The first guide plates 4 and the second guide plates 5 are both rectangular plates with a rectangular cross-section. A vertically arranged first guide groove 4a is provided on the inner side surface of the first guide plate 4, and a vertically arranged second guide groove 5a is provided on the inner side surface of the second guide plate 5. Vertically arranged first needle bed sliders 1d are respectively provided on both end faces of the first needle bed 1, and vertically arranged second needle bed sliders 2d are respectively provided on both end faces of the second needle bed 2. The first needle bed sliders 1d are fitted into the first guide grooves 4a and are slidably engaged with the first guide grooves 4a. The second needle bed sliders 2d are fitted into the second guide grooves 5a and are slidably engaged with the second guide grooves 5a. The third driving mechanism includes an electric cylinder 12 and a T-shaped connecting rod 32. The electric cylinder 12 is fixedly installed on the frame of the double-color tufting machine, and the frame is not shown in the figure. The electric cylinder 12 is preferably a servo electric cylinder of a servo motor. One end of the T-shaped connecting rod 32 is fixedly connected to the telescopic rod of the electric cylinder 12 by threaded connection, and the other end of the T-shaped connecting rod 32 is fixedly connected to the outer side surfaces of the first guide plate 4 and the second guide plate 5 by screws.

[0042] As a preferred working mode of the present utility model, refer to Figure 1 , 2 , 10, 11. Insert the yarn or grass of the first color into the tufting needles 3 of the first needle bed 1, and insert the yarn or grass of the second color into the tufting needles 3 of the second needle bed 2. The first driving mechanism drives the first needle bed 1 to move up and down to implant the yarn or grass of the first color on the base fabric C. At this time, it is preferred that the second needle bed 2 remains stationary. After the first needle bed 1 finishes implanting and the cutting mechanism B finishes cutting, the third motor 8 drives the swing rod 9 to swing, so that the first guide plate 4 and the second guide plate 5 are simultaneously translated horizontally and drive the second needle bed 2 to be translated horizontally to the working position of the first needle bed 1. It is preferred that the second needle bed 2 is translated horizontally by half a needle pitch W, or the electric cylinder 12 drives the connecting rod 13 or the T-shaped connecting rod 32 to be translated horizontally, so that the first guide plate 4 and the second guide plate 5 are simultaneously translated horizontally and drive the second needle bed 2 to be translated horizontally to the working position of the first needle bed 1. It is preferred that the second needle bed 2 is translated horizontally by half a needle pitch W. At this time, it is preferred that the first needle bed 1 remains stationary. The second driving mechanism drives the second needle bed 2 to move up and down to implant the yarn or grass of the second color on the base fabric C, thereby forming a two-color effect, so that the completed product has the yarn or grass of two colors at the same time.

[0043] After trial use, when the present utility model uses a single tufting machine to implant the same number of needles per unit area of the base fabric or implant the yarn or grass of two colors at the same position of the base fabric, the product has a two-color effect, and has a simple structure and high production efficiency, achieving good results.

Claims

1. A two-color tufting machine, comprising a flocking mechanism (A) for implanting yarn or grass filaments into a base fabric (C) and a cutting mechanism (B) for cutting the yarn or grass filaments implanted into the base fabric (C). The flocking mechanism (A) includes a needle bed and tufting needles (3), and the cutting mechanism (B) includes cutting hooks (6) and cutting blades (7), characterized in that: The needle bed is composed of a first needle bed (1) and a second needle bed (2) which are horizontally arranged and fitted together. The tufting needles (3) are vertically installed on the first needle bed (1) and the second needle bed (2), and the tufting needles (3) installed on the first needle bed (1) and the tufting needles (3) installed on the second needle bed (2) are on the same horizontal line. The first needle bed (1) is driven by a first driving mechanism to move up and down in the vertical direction, and the second needle bed (2) is driven by a second driving mechanism to move up and down in the vertical direction. At one end or both ends of the first needle bed (1), there is a first guide plate (4), and at one end or both ends of the second needle bed (2), there is a second guide plate (5). The first guide plate (4) and the second guide plate (5) are vertically arranged and are driven by a third driving mechanism to move horizontally.

2. The two-color tufting machine according to claim 1, wherein: On the front side of the first needle bed (1), there are a number of first convex teeth (1a) and first grooves (1b) arranged at intervals. On the rear side of the second needle bed (2), there are a number of second convex teeth (2a) and second grooves (2b) arranged at intervals. The first convex teeth (1a) of the first needle bed (1) are fitted in the second grooves (2b) of the second needle bed (2), and the second convex teeth (2a) of the second needle bed (2) are fitted in the first grooves (1b) of the first needle bed (1). The tufting needles (3) are vertically installed on the first convex teeth (1a) of the first needle bed (1) and the second convex teeth (2a) of the second needle bed (2).

3. The two-color tufting machine according to claim 2, characterized in that: At both ends of the first needle bed (1), first guide plates (4) are fixedly installed respectively. At both ends of the second needle bed (2), second guide plates (5) are fixedly installed respectively. The first guide plates (4) and the second guide plates (5) are both rectangular plates with a rectangular cross-section. On the outer side of the first guide plate (4), there is a vertically arranged first guide groove (4a). On the outer side of the second guide plate (5), there is a vertically arranged second guide groove (5a). The third driving mechanism includes a third motor (8), a swing rod (9), a pin shaft (10) and rollers (11). One end of the swing rod (9) is installed on the output shaft of the third motor (8), the pin shaft (10) is installed at the other end of the swing rod (9), there are two rollers (11) which are respectively installed at both ends of the pin shaft (10), and the two rollers (11) respectively roll and are fitted in the first guide groove (4a) and the second guide groove (5a).

4. The two-color tufting machine according to claim 3, characterized in that: The first guide groove (4a) and the second guide groove (5a) are rectangular grooves. The rollers (11) are bearings, and the rollers (11) are in sliding fit with the first guide groove (4a) and the second guide groove (5a) in the vertical direction.

5. The two-color tufting machine according to claim 2, characterized in that: A first guide plate (4) is fixedly installed at one end of the first needle bed (1), and a second guide plate (5) is fixedly installed at one end of the second needle bed (2). Both the first guide plate (4) and the second guide plate (5) are concave plates with a concave cross-section. The first guide plate (4) includes a first inner plate (4-1) and a first outer plate (4-2) arranged in parallel. The first inner plate (4-1) is fixedly connected to one end of the first needle bed (1). The second guide plate (5) includes a second inner plate (5-1) and a second outer plate (5-2) arranged in parallel. The second inner plate (5-1) is fixedly connected to one end of the second needle bed (2). The third driving mechanism includes an electric cylinder (12), a connecting rod (13), a pin shaft (10), and a roller (11). One end of the connecting rod (13) is connected to the telescopic rod of the electric cylinder (12). There are two pin shafts (10) which are installed on the rod body of the connecting rod (13) in parallel and at intervals. There are four rollers (11) which are installed at both ends of the pin shaft (10) in pairs and oppositely. The first outer plate (4-2) of the first guide plate (4) and the second outer plate (5-2) of the second guide plate (5) are respectively placed between the rollers (11) arranged in pairs and oppositely in a rolling fit manner.

6. The two-color tufting machine according to any one of claims 1 to 5, characterized in that: The first driving mechanism includes a first rotating shaft (14), a first eccentric wheel (15), a first eccentric sleeve connecting rod (16), a first output shaft (17), a first slider (18) and a first guide rail (19). The first rotating shaft (14) is rotatably installed on the frame of the double-color tufting machine or on the side plate of the transmission box body (26) and is driven to rotate by a first motor. The first eccentric wheel (15) is fixedly installed on the first rotating shaft (14). The upper end of the first eccentric sleeve connecting rod (16) is sleeved on the first eccentric wheel (15). The lower end of the first eccentric sleeve connecting rod (16) is rotatably connected to the upper end of the first output shaft (17). The lower end of the first output shaft (17) is fixedly connected to the first slider (18). The first output shaft (17) is vertically arranged and is in sliding fit with the frame of the double-color tufting machine or the bottom plate of the transmission box body (26). The first guide rail (19) is fixedly installed on the first needle bed (1). The first slider (18) is slidably connected to the first guide rail (19) in the horizontal direction. The second driving mechanism includes a second rotating shaft (20), a second eccentric wheel (21), a second eccentric sleeve connecting rod (22), a second output shaft (23), a second slider (24) and a second guide rail (25). The second rotating shaft (20) is rotatably installed on the frame of the double-color tufting machine or on the side plate of the transmission box body (26) and is driven to rotate by a second motor. The second eccentric wheel (21) is fixedly installed on the second rotating shaft (20). The upper end of the second eccentric sleeve connecting rod (22) is sleeved on the second eccentric wheel (21). The lower end of the second eccentric sleeve connecting rod (22) is rotatably connected to the upper end of the second output shaft (23). The lower end of the second output shaft (23) is fixedly connected to the second slider (24). The second output shaft (23) is vertically arranged and is in sliding fit with the frame of the double-color tufting machine or the bottom plate of the transmission box body (26). The second guide rail (25) is fixedly installed on the second needle bed (2). The second slider (24) is slidably connected to the second guide rail (25) in the horizontal direction.

7. The two-color tufting machine according to claim 6, characterized in that: The first slider (18) is slidably connected to the first guide rail (19) through a dovetail groove or a triangular groove or a trapezoidal groove or a rectangular groove structure. The second slider (24) is slidably connected to the second guide rail (25) through a dovetail groove or a triangular groove or a trapezoidal groove or a rectangular groove structure.

8. The two-color tufting machine according to any one of claims 2 to 5, characterized in that: The distance between the tufting needles (3) installed on the first convex teeth (1a) is one needle pitch (W). The distance between the tufting needles (3) installed on the first convex teeth (1a) and the tufting needles (3) installed on the second convex teeth (2a) is half a needle pitch (W).

9. The two-color tufting machine according to claim 8, characterized in that: Vertically arranged first positioning holes (1c) and second positioning holes (2c) are respectively formed in the first convex teeth (1a) and the second convex teeth (2a). The upper needle bodies (3a) of the tufting needles (3) are inserted into the first positioning holes (1c) and the second positioning holes (2c) and fixed by set screws.

10. The two-color tufting machine according to any one of claims 2 to 5, characterized in that: The size and shape of the first convex tooth (1a) are adapted to those of the second groove (2b), the size and shape of the second convex tooth (2a) are adapted to those of the first groove (1b), and the cross-sectional shapes of the first convex tooth (1a), the second convex tooth (2a), the first groove (1b), and the second groove (2b) are rectangular, triangular, trapezoidal, or dovetail-shaped.

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