Doup jacquard machine

Abstract

A doup jacquard machine, comprising a rack (1) and a power mechanism (2) arranged on the rack (1), wherein a main doup small shed wheel (3), a main doup large shed wheel (4), an auxiliary doup small shed wheel (5) and an auxiliary doup large shed wheel (6) are arranged on the rack (1), the main doup small shed wheel (3) and the main doup large shed wheel (4) are synchronized, the auxiliary doup small shed wheel (5) and the auxiliary doup large shed wheel (6) are synchronized, and a deflection angle a is formed between the main doup large shed wheel (4) and the auxiliary doup small shed wheel (5). By means of the design of the deflection angle formed between the main doup large shed wheel (4) and the auxiliary doup small shed wheel (5), during jacquard weaving, when a main doup lifts a yarn to the highest or lowest point, a corresponding auxiliary doup does not lift the yarn to the lowest or highest point, such that the front and back drop of the yarn can be reduced, the yarn tension is reduced, and the weaving speed and the product quality and pass rate are improved.

Description

A hank sley jacquard machine TECHNICAL FIELD

[0001] The present application relates to the technical field of jacquard machines, in particular to a hank sley jacquard machine. BACKGROUND

[0002] Hang Luo belongs to hank sley fabric, and it is difficult to complete batch production of Hang Luo with high speed, high efficiency and high-quality stability for a long time due to complex process. The Hang Luo produced in the market at present mainly adopts mechanical jacquard machines and wooden shuttle looms, and the production speed is low, the pattern switching cycle is complex, the defect rate is high, and the material waste is serious.

[0003] At present, for the front and rear double-opening jacquard mechanism for producing hank sley fabric, due to the large size of the main hank sley steel heddle, the length after arrangement is large, and the arrangement of the auxiliary hank sley steel heddle in the rear row, so that under the condition of ensuring a certain opening size, the difference between the main hank sley steel heddle and the auxiliary hank sley steel heddle is large, so the tension of the yarn is large during the jacquard process, and yarn breakage is prone to occur, resulting in defective hank sley fabric, especially for silk hank sley fabric, the silk strength is low, and the defective rate is extremely high.

[0004] In order to alleviate the tension of the warp yarn and improve the weaving speed, the traditional process adopts fixed pressure roller, elastic pressure roller, double warp beam, independent warp beam frame and other ways, the construction is complex, the site area is wasted, and the efficiency is improved slightly, and the industry needs a special mechanical mechanism for hank sley special process to solve various problems in the above sequence, so as to improve the hank sley jacquard weaving speed and improve the qualified rate of hank weaving action. SUMMARY

[0005] The present application provides a hank sley jacquard machine to reduce the yarn tension during the jacquard process, to reduce the realization of breakage, and to improve the yield of hank sley fabric.

[0006] The present application discloses a hank sley jacquard machine, which comprises a rack and at least two sets of opening mechanisms arranged on the rack, and each set of opening mechanisms forms an independent opening after being arranged longitudinally on the jacquard machine.

[0007] The opening mechanism is two sets, and the specific structure is as follows:

[0008] The main heddle small shed wheel, the main heddle large shed wheel, the auxiliary heddle small shed wheel and the auxiliary heddle large shed wheel are driven to rotate by the power mechanism, and corresponding knives are arranged on the main heddle small shed wheel, the main heddle large shed wheel, the auxiliary heddle small shed wheel and the auxiliary heddle large shed wheel, wherein two groups of knife mechanisms are respectively connected with the main heddle large shed wheel and the main heddle small shed wheel, and the other group of knife mechanisms is connected with the auxiliary heddle large shed wheel and the auxiliary heddle small shed wheel, a needle selection assembly is arranged on the rack, the corresponding knives of the main heddle small shed wheel and the main heddle large shed wheel are connected with the corresponding needle selection assembly through the main heddle, and the corresponding knives of the auxiliary heddle small shed wheel and the auxiliary heddle large shed wheel are connected with the corresponding needle selection assembly through the auxiliary heddle; the main heddle small shed wheel and the main heddle large shed wheel are synchronous, the auxiliary heddle small shed wheel and the auxiliary heddle large shed wheel are synchronous, and an angle a is formed between the main heddle large shed wheel and the auxiliary heddle small shed wheel.

[0009] The power mechanism, the main heddle small shed wheel, the main heddle large shed wheel, the auxiliary heddle small shed wheel, the auxiliary heddle large shed wheel, the corresponding knives and the needle selection assembly are all known structures, and the specific structures will not be described in detail.

[0010] The angle of the angle a is between 0 and 90 degrees, and the angle of the angle a is not equal to 0.

[0011] The main heddle small shed wheel, the main heddle large shed wheel, the auxiliary heddle small shed wheel and the auxiliary heddle large shed wheel are driven by one or more power mechanisms.

[0012] The main heddle small shed wheel, the main heddle large shed wheel, the auxiliary heddle small shed wheel and the auxiliary heddle large shed wheel are one of gears, chain wheels, cams and eccentric wheels.

[0013] The opening mechanism can be a jacquard machine of the prior art, and the heddle jacquard machine of the present application can be formed by arranging a plurality of jacquard machines of the prior art in the longitudinal direction on the rack and respectively controlling the main heddle and the auxiliary heddle.

[0014] The heddle jacquard machine obtained by the present application has the following advantages: each group of knives corresponds to the heddle arranged on the jacquard machine to form an independent opening, and the heddles are not synchronous, when the main heddle lifts the yarn to the highest point or the lowest point, the corresponding auxiliary heddle does not lift the yarn to the lowest point or the highest point, so that the difference between the front and back of the yarn can be reduced, the tension of the yarn can be reduced, the weaving speed and product quality and the qualified rate can be improved, the problem of too large tension and broken warp in the traditional flower cloth weaving process is solved, and the problem of silk warp being too thin, high weaving speed, large opening and easy to break warp, low speed, no efficiency, poor product quality and the like is solved.

[0015] The present application relates to a twist heddle jacquard, which uses a heddle different from the common jacquard heddle, the common jacquard heddle is small in size and close to the shape of a steel wire, while the twist heddle jacquard heddle has left and right pusher blades and a middle blade, and the overall size is large, so that the same number of twist heddle heddles are arranged in the warp direction with a long length, the longer the warp direction arrangement, the greater the up and down travel of the farthest end heddle, and the opening must be large, because the warp direction needs to form an inclined opening, which is the clearest, the present application is to keep the opening a certain degree of clarity, and try to reduce the maximum opening caused by the excessive tension of the warp yarn, and finally realize high-speed stable weaving of real silk brocade. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 is a structural schematic diagram of the present application. DETAILED DESCRIPTION

[0017] In order to further illustrate the technical means and effects adopted by the present application to achieve the predetermined application purpose, the specific embodiments, structures, features and effects according to the present application are described in detail as follows in combination with the drawings and preferred embodiments. EMBODIMENT

[0018] As shown in Fig. 1, the present application discloses a twist heddle jacquard, which comprises a rack 1 and at least two sets of opening mechanisms arranged on the rack 1, each set of opening mechanisms forms an independent opening after being arranged in the warp direction on the jacquard.

[0019] The opening mechanism is two groups, and the specific structure is as follows:

[0020] A main twist heddle small shed wheel 3, a main twist heddle large shed wheel 4, an auxiliary twist heddle small shed wheel 5 and an auxiliary twist heddle large shed wheel 6 are arranged on the rack 1, the power mechanism 2 drives the main twist heddle small shed wheel 3, the main twist heddle large shed wheel 4, the auxiliary twist heddle small shed wheel 5 and the auxiliary twist heddle large shed wheel 6 to rotate, corresponding knives 7 are arranged on the main twist heddle small shed wheel 3, the main twist heddle large shed wheel 4, the auxiliary twist heddle small shed wheel 5 and the auxiliary twist heddle large shed wheel 6, that is, the main twist heddle large shed wheel 4 and the main twist heddle small shed wheel 3 are connected with a group of knife mechanisms, the auxiliary twist heddle large shed wheel 6 and the auxiliary twist heddle small shed wheel 5 are connected with another group of knife mechanisms, a needle selection assembly 8 is arranged on the rack 1, the corresponding knives 7 of the main twist heddle small shed wheel 3 and the main twist heddle large shed wheel 4 are connected with the corresponding needle selection assembly 8 through the main twist heddle, and the corresponding knives 7 of the auxiliary twist heddle small shed wheel 5 and the auxiliary twist heddle large shed wheel 6 are connected with the corresponding needle selection assembly 8 through the auxiliary twist heddle; the main twist heddle small shed wheel 3 and the main twist heddle large shed wheel 4 are synchronous, the auxiliary twist heddle small shed wheel 5 and the auxiliary twist heddle large shed wheel 6 are synchronous, and an angle a is formed between the main twist heddle large shed wheel 4 and the auxiliary twist heddle small shed wheel 5.

[0021] The power mechanism 2, the main heald small shed wheel 3, the main heald large shed wheel 4, the auxiliary heald small shed wheel 5, the auxiliary heald large shed wheel 6, the corresponding knife 7, the needle selection assembly 8 and other structures are known structures, and the specific structure will not be described.

[0022] The main heald large shed wheel 4 and the main heald small shed wheel 3 drive the knife 7 and the corresponding needle selection assembly 8 to move, and the auxiliary heald large shed wheel 6 and the auxiliary heald small shed wheel 5 drive the knife 7 and the corresponding needle selection assembly 8 to move. Due to the setting of the opening angle, the movement range of the auxiliary heald arranged in the back is large. When the main heald drives the yarn to the highest point or the lowest point during jacquard weaving, the auxiliary heald drives the corresponding yarn to the lowest point or the highest point, which causes a large difference in the yarn. Therefore, the yarn is prone to breakage during jacquard weaving, especially when the weaving speed is fast. The present scheme forms an angle a between the main heald small shed wheel 3 and the auxiliary heald large shed wheel 6. When the main heald heald is at the highest point or the lowest point, the auxiliary heald heald is not at the highest point or the lowest point, which can reduce the difference between the yarn corresponding to the main heald heald and the yarn corresponding to the auxiliary heald heald, reduce the tension of the yarn, and prevent the yarn from breaking during weaving. The weaving speed of the jacquard machine can be improved, the weaving efficiency is high, and the yield of the heald fabric is high.

[0023] The angle of the angle a is between 0-90°. As a preferred, the angle of the angle a can be between 20-30°, such as 25°, 28°, etc. Any value can be selected and adjusted according to actual needs.

[0024] As shown in Figure 1, the main healds of the jacquard machine are arranged with a front-to-back distance of L1, and the auxiliary healds are arranged with a front-to-back distance of L2. In a certain opening state, in the case of the existing equipment, the distance between the highest point and the lowest point of the front end of the main healds is H1, the distance between the highest point and the lowest point of the last section of the main healds is H2, the distance between the highest point and the lowest point of the front end of the auxiliary healds is H5, and the distance between the highest point and the lowest point of the last end of the auxiliary healds is H6. In the present embodiment, the auxiliary heald large shed wheel 6 and the auxiliary heald small shed wheel 5 are adjusted at a certain angle, and there is an angle a between the auxiliary heald large shed wheel 6 and the auxiliary heald small shed wheel 5 and the main heald large shed wheel 4 and the main heald small shed wheel 3. In this way, the height position of the main healds remains unchanged during normal jacquard weaving, and when the main healds are at the highest point or the lowest point, the height difference of the front end of the auxiliary healds is only H3, and the height difference of the last end of the auxiliary healds is only H4. As can be seen from Figure 1, H3 < H5 and H4 < H6, so the maximum difference between the yarns of the auxiliary healds and the yarns of the main healds during jacquard weaving can be effectively reduced, thereby reducing the tension borne by the yarns. The reduction in tension during jacquard weaving can improve the efficiency of the loom and reduce yarn breakage, thereby ensuring the yield of the heald fabric. In particular, for silk weaving, the yield is high and the speed is fast.

[0025] The main heald small shed wheel 3, the main heald large shed wheel 4, the auxiliary heald small shed wheel 5, and the auxiliary heald large shed wheel 6 are driven by one or more power mechanisms 2.

[0026] Under normal circumstances, the power mechanism 2 is one, and all the main heald small shed wheel 3, the main heald large shed wheel 4, the auxiliary heald small shed wheel 5, and the auxiliary heald large shed wheel 6 are driven by one power mechanism 2. During adjustment, only an angle a needs to be formed between the auxiliary heald small shed wheel 5, the auxiliary heald large shed wheel 6, and the main heald large shed wheel 4 and the main heald large shed wheel 4. Of course, according to actual needs, multiple power mechanisms 2 can be selected, such as two power mechanisms 2, one of which drives the main heald large shed wheel 4 and the main heald small shed wheel 3, and the other of which drives the auxiliary heald large shed wheel 6 and the auxiliary heald small shed wheel 5.

[0027] The main heald small shed wheel 3, the main heald large shed wheel 4, the auxiliary heald small shed wheel 5, and the auxiliary heald large shed wheel 6 are one of a gear, a sprocket, a cam, and an eccentric wheel.

[0028] In the embodiment, as shown in Fig. 1, the main heald small shed wheel 3, the main heald large shed wheel 4, the auxiliary heald small shed wheel 5 and the auxiliary heald large shed wheel 6 are gears, all gears are driven to rotate by the output gear on the power mechanism 2, and the corresponding knives 7 are eccentrically arranged on the gears. Of course, the gears are used as the main heald small shed wheel 3, the main heald large shed wheel 4, the auxiliary heald small shed wheel 5 and the auxiliary heald large shed wheel 6, which is a technology already used in the field.

[0029] In other embodiments, the main heald small shed wheel 3, the main heald large shed wheel 4, the auxiliary heald small shed wheel 5 and the auxiliary heald large shed wheel 6 are sprockets, and a sprocket is arranged on the output shaft of the power mechanism 2 to drive through a chain. Of course, the power mechanism 2 can also use a cam, eccentric wheel mechanism in other embodiments. These forms have been used as the main heald small shed wheel 3, the main heald large shed wheel 4, the auxiliary heald small shed wheel 5 and the auxiliary heald large shed wheel 6 in the field. The specific structure is not described here.

[0030] In other embodiments, two independent parallel existing jacquard machines can be combined to form a heald jacquard machine, one of which controls the main heald shed, and the other controls the auxiliary heald shed. Embodiment

[0031] The heald jacquard machine disclosed in the embodiment sets multiple sets of shedding mechanisms on the rack, which can be: crank shedding mechanism, cam shedding mechanism, multi-arm shedding mechanism, motor needle selection mechanism and electromagnetic needle selection mechanism.

[0032] The crank shedding mechanism, cam shedding mechanism, multi-arm shedding mechanism, motor needle selection mechanism and electromagnetic needle selection mechanism are all existing technologies.

[0033] The motor needle selection mechanism is a stepping motor needle selection mechanism, which can also be a servo motor needle selection mechanism.

[0034] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed as above with a preferred embodiment, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technology within the scope of the technical solution of the present application to obtain equivalent embodiments with equivalent changes. However, any simplification, modification, equivalent change and modification of the above embodiments based on the technical essence of the present application, such as the change of the gear to a chain transmission, the delay angle or the advance angle action of the double-opening front and rear transmission, the two parallel placed (sprocket, cam or eccentric wheel mechanism) jacquard machines, the front and rear jacquard opening setting to the delay angle or the advance angle action of the highest opening in front and back, are still within the scope of the technical solution of the present application.

Claims

1. A dialling jacquard machine, characterised in that: The jacquard machine comprises a frame and at least two sets of opening mechanisms arranged on the frame, and each set of opening mechanisms forms an independent opening when arranged longitudinally on the jacquard machine.

2. A dialling jacquard according to claim 1, characterised in that: The opening mechanism comprises a main heald small shedding wheel, a main heald large shedding wheel, an auxiliary heald small shedding wheel and an auxiliary heald large shedding wheel arranged on the frame, the power mechanism drives the main heald small shedding wheel, the main heald large shedding wheel, the auxiliary heald small shedding wheel and the auxiliary heald large shedding wheel to rotate, corresponding knives are arranged on the main heald small shedding wheel, the main heald large shedding wheel, the auxiliary heald small shedding wheel and the auxiliary heald large shedding wheel, a needle selection assembly is arranged on the frame, the corresponding knives of the main heald small shedding wheel and the main heald large shedding wheel are connected with the corresponding needle selection assembly through a main heald, and the corresponding knives of the auxiliary heald small shedding wheel and the auxiliary heald large shedding wheel are connected with the corresponding needle selection assembly through an auxiliary heald; the main heald small shedding wheel and the main heald large shedding wheel are synchronous, the auxiliary heald small shedding wheel and the auxiliary heald large shedding wheel are synchronous, and an angle a is formed between the main heald large shedding wheel and the auxiliary heald small shedding wheel.

3. A dialling jacquard according to claim 2, characterised in that: The angle a is between 0 and 90 degrees, and the eccentric angle a is not equal to 0.

4. A dialling jacquard according to claim 2, characterised in that: The main heald small shedding wheel, the main heald large shedding wheel, the auxiliary heald small shedding wheel and the auxiliary heald large shedding wheel are driven by one or more power mechanisms.

5. A dialling jacquard according to claim 4, characterised in that: The main heald small shedding wheel, the main heald large shedding wheel, the auxiliary heald small shedding wheel and the auxiliary heald large shedding wheel are one of a gear, a sprocket, a cam and an eccentric wheel.

6. A dialling jacquard according to claim 2, characterised in that: Each set of opening mechanisms is an independent prior art jacquard machine.

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