Negative cam device of water-jet loom

Abstract

The utility model provides a negative cam device of a water jet loom, which comprises a cam main body, a connecting piece, a tension spring and a power mechanism, and the upper end of the outer side surface of the cam main body is provided with the connecting piece used for connecting a spinning piece with the cam main body. The cam has the advantages that the cam body, the tension spring, the power mechanism, the driving gear, the driven gear and the power motor are additionally arranged, the power motor drives the driving gear to rotate, and the driving gear and the driven gear drive the winding and unwinding wheel to rotate under the condition that the driving gear is meshed with the driven gear; the cam main body is driven to rotate anticlockwise under the cooperation of the fixed pulley, the power motor is closed at regular time, and the tension spring pulls the cam main body to rotate clockwise under the action of elastic force, so that the reciprocating rotation of the cam main body can be completed; the cam body and the spinning part can be connected through the connecting part through bolts, and therefore the device can be disassembled and assembled in a split mode conveniently.

Description

Technical Field

[0001] The utility model belongs to the technical field of cam devices for water jet looms, and particularly relates to a negative cam device for a water jet loom. Background Technique

[0002] A textile machine, also called a spinning machine, a loom, a cotton spinning machine, etc. The ancient textile machine was a loom driven by manpower. A textile machine is the full name of a tool that processes raw materials such as threads, silk, and hemp into silk threads and then weaves them into fabrics. With the development and evolution, looms now have various types, and different models of looms can be selected according to different production needs to achieve corresponding production purposes. A water jet loom is a shuttleless loom that uses a jet of water to draw the weft yarn through the shed. In a water jet loom, the textile component is driven to rotate reciprocally by a cam, and the water jet structure sprays a jet of water to draw the weft yarn through the shed to achieve the corresponding textile effect. However, most of the cams in common water jet looms are of the active cam structure, and the power mechanism drives the cam to achieve the reciprocating rotation effect. This structure requires the power mechanism to keep running, which will continuously consume energy and cause certain waste.

[0003] Secondly, the response speed of the active cam system is affected by processes such as the start, acceleration, and deceleration of the power source. Compared with the negative cam that can quickly respond to the energy released by the spring, its dynamic response performance may be slightly inferior.

[0004] In summary, there are certain problems in the use of the active cam structure commonly used in water jet looms, so it is hoped to propose a new structure to solve the above technical problems. Content of the Utility Model

[0005] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a negative cam device for a water jet loom to solve the problems raised in the above background technique.

[0006] The utility model is realized through the following technical solutions: A negative cam device for a water jet loom includes: a cam main body, a connecting piece, a tension spring, and a power mechanism. A connecting piece for connecting the textile component and the cam main body is provided at the upper end of the outer side of the cam main body. A tension spring for automatically rotating the cam main body back to its position is provided at the left side of the lower end of the cam main body. A power mechanism for driving the cam main body to rotate is provided at the right side of the lower end of the cam main body. A driven gear is provided at the front side of the lower end of the power mechanism. A driving gear for transmitting rotation is provided at the upper right side of the driven gear. A power motor for providing a power source is provided at the front side of the driving gear.

[0007] As a preferred embodiment, the power motor is electrically connected to an externally set timer starter. A winding and unwinding wheel is provided at the lower right end of the power mechanism, and a fixed pulley is provided above the winding and unwinding wheel. Rope grooves are formed on the outer sides of both the winding and unwinding wheel and the fixed pulley. By passing the active pulling rope through the rope groove of the fixed pulley, the direction of the active pulling rope can be changed.

[0008] As a preferred embodiment, an active pulling rope is provided inside the rope groove. Second rotation holes are vertically penetrated through the rear sides of both the winding and unwinding wheel and the fixed pulley, and a wheel shaft is provided inside the second rotation holes.

[0009] As a preferred embodiment, the front end of the lower wheel shaft passes through the driven gear, and the driving gear meshes with the driven gear.

[0010] As a preferred embodiment, hook rings are provided on both the left and right sides at the lower end of the cam main body. Hooks are provided at both the left and right ends of the tension spring. The hook on the right end engages with the left hook ring. The hook on the right end of the tension spring is connected to the hook ring at the left end of the cam main body, enabling the tension spring to drive the cam main body to rotate clockwise.

[0011] As a preferred embodiment, a second hook is provided at the left end of the active pulling rope. The second hook engages with the right hook ring. A pulling rope body is provided at the right end of the active pulling rope;

[0012] A first rotation hole is vertically penetrated through the rear side of the cam main body, and a rotating shaft is provided inside the first rotation hole.

[0013] As a preferred embodiment, a snap ring is provided at the lower end of the connecting member. Connecting threaded holes are formed on the side surfaces of both the snap ring and the left and right ends of the cam main body. The inner side surface of the snap ring fits with the outer side surface of the cam main body and is fixedly connected by bolts.

[0014] As a preferred embodiment, two groups of spaced connecting plates are provided at the upper end of the connecting member. A textile member is provided above the connecting member. Connecting plates are provided at the lower end of the textile member. The connecting plates are snapped between the two groups of connecting plates and are connected by bolts.

[0015] After adopting the above technical solution, the beneficial effects of the present utility model are as follows: By adding a cam main body, a tension spring, a power mechanism, a driving gear, a driven gear, and a power motor, the power motor drives the driving gear to rotate. When the driving gear meshes with the driven gear, the winding and unwinding wheel is driven to rotate. Then, with the cooperation of the fixed pulley, the active pulling rope drives the cam main body to rotate counterclockwise. When the power motor is turned off regularly, the tension spring pulls the cam main body to rotate clockwise under the action of elastic force, thereby enabling the reciprocating rotation of the cam main body. By adding the cam main body and the connecting member, the connecting member can connect the cam main body and the textile member with bolts, thereby facilitating the disassembly and assembly of the device in a split manner. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a partial structural schematic diagram of a negative cam device of a water jet loom according to the present invention.

[0018] Figure 2 It is a structural schematic diagram of a cam main body in a negative cam device of a water jet loom according to the present invention.

[0019] Figure 3 It is a structural schematic diagram of a connecting member in a negative cam device of a water jet loom according to the present invention.

[0020] Figure 4 It is a structural schematic diagram of a power mechanism in a negative cam device of a water jet loom according to the present invention.

[0021] Figure 5 It is a partial structural schematic diagram of an active pull rope in a negative cam device of a water jet loom according to the present invention.

[0022] In the figure, 100 - cam main body, 101 - first rotation hole, 102 - connecting threaded hole, 103 - hook ring;

[0023] 200 - connecting member, 201 - snap ring, 202 - first connecting plate;

[0024] 300 - textile component;

[0025] 400 - tension spring;

[0026] 500 - power mechanism, 501 - active pull rope, 502 - fixed pulley, 503 - winding and unwinding wheel;

[0027] 600 - driving gear;

[0028] 700 - driven gear;

[0029] 800 - power motor;

[0030] 501a - second hook, 501b - pull rope body. Detailed implementation manners

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0032] Please refer to Figures 1 to 5 , the present utility model provides a technical solution: a negative cam device for a water jet loom, including: a cam main body 100, a connecting member 200, a tension spring 400, and a power mechanism 500. A connecting member 200 for connecting a textile member 300 and the cam main body 100 is provided at the upper end of the outer side surface of the cam main body 100;

[0033] A tension spring 400 for automatically rotating the cam main body 100 back to its original position is provided at the left side of the lower end of the cam main body 100, and a power mechanism 500 for driving the rotation of the cam main body 100 is provided at the right side of the lower end of the cam main body 100;

[0034] A driven gear 700 is provided at the front side of the lower end of the power mechanism 500. A driving gear 600 for transmitting rotation is provided at the upper right side of the driven gear 700, and a power motor 800 for providing a power source is provided at the front side of the driving gear 600.

[0035] The power motor 800 is electrically connected to an externally set timer starter. A take-up and pay-out wheel 503 is provided at the lower right end of the power mechanism 500. A fixed pulley 502 is provided above the take-up and pay-out wheel 503. Rope grooves are provided on the outer side surfaces of the take-up and pay-out wheel 503 and the fixed pulley 502. By passing the active pulling rope 501 through the rope groove of the fixed pulley 502, the direction of the active pulling rope 501 can be changed.

[0036] The active pulling rope 501 is provided inside the rope groove. Through holes two are vertically penetrated through the rear side surfaces of the take-up and pay-out wheel 503 and the fixed pulley 502, and a wheel shaft 504 is provided inside the through holes two.

[0037] The front end of the lower wheel shaft 504 passes through the driven gear 700, and the driving gear 600 meshes with the driven gear 700.

[0038] Hook rings 103 are provided on both the left and right sides of the lower end of the cam main body 100. Hooks one are provided at both the left and right ends of the tension spring 400. The right hook one engages with the left hook ring 103. The right hook one of the tension spring 400 is connected to the left hook ring 103 of the cam main body 100, enabling the tension spring 400 to drive the cam main body 100 to rotate clockwise.

[0039] A hook two 501a is provided at the left end of the active pulling rope 501. The hook two 501a engages with the right hook ring 103. A pulling rope body 501b is provided at the right end of the active pulling rope 501;

[0040] A first rotation hole 101 is vertically penetrated through the rear side surface of the cam main body 100, and a rotating shaft is provided inside the first rotation hole 101.

[0041] Please refer to Figures 1 - 5 , as the first embodiment of the present invention: First, the user controls the power motor 800 to drive the driving gear 600 to rotate. When the driving gear 600 meshes with the driven gear 700, the winding and unwinding wheel 503 is driven to rotate. Then, under the cooperation of the fixed pulley 502, the direction of the active pulling rope 501 is changed, and the active pulling rope 501 pulls the cam main body 100 to rotate counterclockwise. Second, the power motor 800 is controlled to be turned off regularly through a timing starter. The pulling force at the right end of the cam main body 100 disappears, and the tension spring 400 on the left side of the cam main body 100 pulls the cam main body 100 to rotate clockwise under the action of elastic force, so that the reciprocating rotation of the cam main body 100 can be completed, and the textile piece 300 is driven through the connecting piece 200 to complete the textile operation.

[0042] A snap ring 201 is provided at the lower end of the connecting piece 200. Connecting threaded holes 102 are opened on the side surfaces of the left and right ends of the snap ring 201 and the cam main body 100. The inner side surface of the snap ring 201 is mutually attached to the outer side surface of the cam main body 100 and is fixedly connected by bolts.

[0043] Two groups of spaced connecting plates one 202 are provided at the upper end of the connecting piece 200. A textile piece 300 is provided above the connecting piece 200. A connecting plate two is provided at the lower end of the textile piece 300. The connecting plate two is clamped between the two groups of connecting plates one 202 and is fixedly connected by bolts.

[0044] Please refer to Figures 1 - 3 , as the second embodiment of the present invention: Based on the above first embodiment, a snap ring 201 is provided at the lower end of the connecting piece 200. Connecting threaded holes 102 are opened on the side surfaces of the left and right ends of the snap ring 201 and the cam main body 100. Two groups of spaced connecting plates one 202 are provided at the upper end of the connecting piece 200. A textile piece 300 is provided above the connecting piece 200. A connecting plate two is provided at the lower end of the textile piece 300. First, the user mutually clamps the snap ring 201 at the lower end of the connecting piece 200 with the outer side surface of the cam main body 100, and screws bolts into the inner side of the connecting threaded hole 102 to fixedly connect the connecting piece 200 and the cam main body 100. Second, the user inserts the connecting plate two between the two groups of connecting plates one 202 and uses bolts to fixedly connect the textile piece 300 and the connecting piece 200, so as to facilitate the disassembly and assembly of the device in a split manner.

[0045] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A negative cam device for a water jet loom, comprising: A cam body (100), a connecting piece (200), a tension spring (400) and a power mechanism (500), characterized in that: a connecting piece (200) for connecting a textile piece (300) to the cam body (100) is provided at the upper end of the outer surface of the cam body (100); A tension spring (400) for automatically rotating the cam body (100) is provided on the left side of the lower end of the cam body (100), and a power mechanism (500) for driving the cam body (100) to rotate is provided on the right side of the lower end of the cam body (100); A driven gear (700) is provided at the front side of the lower end of the power mechanism (500), a driving gear (600) for transmitting rotation is provided at the upper right side of the driven gear (700), and a power motor (800) for providing a power source is provided at the front side of the driving gear (600).

2. A negative cam device for a water jet loom as claimed in claim 1, characterized in that: The power motor (800) is electrically connected to an external timing starter. A retractable wheel (503) is provided at the lower right end of the power mechanism (500). A fixed pulley (502) is provided above the retractable wheel (503). Rope grooves are provided on the outer sides of the retractable wheel (503) and the fixed pulley (502).

3. A negative cam device for a water jet loom as claimed in claim 2, characterized in that: An active pull rope (501) is arranged inside the rope groove, and the rear sides of the retractable wheel (503) and the fixed pulley (502) are vertically penetrated to form a second rotating hole, and a wheel shaft (504) is arranged inside the second rotating hole.

4. A negative cam device for a water jet loom as claimed in claim 3, characterized in that: The front end of the wheel shaft (504) at the lower end passes through the driven gear (700), and the driving gear (600) and the driven gear (700) are meshed with each other.

5. A negative cam device for a water jet loom as claimed in claim 4, characterized in that: The left and right sides of the lower end of the cam body (100) are both provided with hook rings (103), and the left and right ends of the tension spring (400) are both provided with hooks 1, and the hook 1 at the right end is mutually engaged with the left hook ring (103).

6. A negative cam device for a water jet loom as claimed in claim 5, characterized in that: The left end of the active pull rope (501) is provided with a second hook (501a), the second hook (501a) is engaged with the hook ring (103) at the right end, and the right end of the active pull rope (501) is provided with a pull rope body (501b); The rear side surface of the cam body (100) is vertically penetrated to form a rotating hole (101), and a rotating shaft is provided inside the rotating hole (101).

7. A negative cam device for a water jet loom as claimed in claim 1, characterized in that: A snap ring (201) is provided at the lower end of the connecting member (200), and connecting threaded holes (102) are provided on the side surfaces of the snap ring (201) and the left and right ends of the cam body (100), and the inner side surface of the snap ring (201) and the outer side surface of the cam body (100) are fitted to each other and fixed by bolt connection.

8. A negative cam device for a water jet loom as claimed in claim 7, characterized in that: The upper end of the connecting member (200) is provided with two groups of spaced connecting plates (202), a textile member (300) is provided above the connecting member (200), and the lower end of the textile member (300) is provided with a connecting plate (2), the connecting plate (2) is inserted between the two groups of connecting plates (202) and connected by bolts.

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