A manual deceleration and force-adding device for circular knitting machines

Abstract

The present invention discloses a manual deceleration and force-adding device for a circular knitting machine. The device is improved on the basis of an existing circular knitting machine, and utilizes the existing space of the equipment to make up for its shortcomings. The device is simple to manufacture and easy to install. It also meets the needs of the development trend of large-cylinder warps in circular knitting machines, and achieves convenient debugging, time and labor saving, and reduced weaving defects. The device is matched with the main shaft system of the circular knitting machine in transmission, and includes a central column base (4) system as a support platform and a central column complex supported thereon. The central column complex includes a transmission shaft (3), a driving gear (8) sleeved on the transmission shaft (3), and a movable handle seat (10) matched with the driving gear (8); the driving gear (8) is meshed with the main shaft gear (12) on the main shaft system for transmission.

Description

Technical Field

[0001] The invention relates to the field of circular knitting machine technology, and in particular to a manual deceleration and force-adding device for a circular knitting machine. Background Art

[0002] like Figure 1 As shown, the existing circular knitting machine mainly includes a frame 2, a spindle system (transmission spindle 1, lower fastening ring 13), a movable handle base 10, a handle 11, and a transmission system protective cover 15. When the existing circular knitting machine is manually operated, the needle cylinder advances at a high speed and has a large range of motion. However, when the machine is manually started from a cold state, the manual handle is easily damaged due to the high resistance. The main shortcomings of the manual device structure of the existing circular knitting machine are analyzed as follows:

[0003] 1. During the debugging process of the circular knitting machine, the handle 11 needs to be used to rotate the transmission main shaft 1. The structure generally adopts a strip bearing wrench or an Allen wrench directly on the transmission main shaft 1. This direct transmission method has a small diameter of the transmission joint surface, large resistance and large range.

[0004] 2. When the handle 11 is used to rotate the needle cylinder, the needle cylinder has a large movement range, which can easily cause difficulties in knitting needle operation, raw material replenishment, and yarn withdrawal, and cannot meet the low-speed operation requirements of the equipment after maintenance.

[0005] 3. When the circular knitting machine is restarted after a long shutdown, the needle cylinder needs to be manually operated. If the circular knitting machine is restarted after a long shutdown, the needle cylinder has a large resistance to operation and it is very difficult to move the handle, which often causes damage to the strip bearing in the handle 11. Summary of the Invention

[0006] The purpose of the present invention is to provide a manual deceleration and force-adding device for a circular knitting machine, which is improved on the basis of the existing circular knitting machine, utilizes the existing space of the equipment to make up for its shortcomings, is simple to manufacture and easy to install, and also meets the needs of the development trend of large-cylinder warps in circular knitting machines, achieving convenient debugging, saving time and effort, and reducing weaving defects.

[0007] The present invention is achieved through the following technical solutions: a manual deceleration and force-adding device for a circular knitting machine, which is in transmission cooperation with the main shaft system of the circular knitting machine, includes a central column base system as a support platform and a central column complex supported thereon, the central column complex includes a transmission shaft, a driving gear sleeved on the transmission shaft and a movable handle seat that cooperates with the driving gear; the driving gear is meshed with the main shaft gear on the main shaft system for transmission.

[0008] In order to further better realize the manual deceleration and force-adding device of the circular knitting machine described in the present invention, the following setting structure is particularly adopted: the central column base system is arranged below the driving gear.

[0009] In order to further better realize the manual deceleration and force-enhancing device of a circular knitting machine described in the present invention, the following setting structure is particularly adopted: the center column base system includes a center column base and a deep groove bearing and a one-way bearing loaded in the center column base, and the deep groove bearing and the one-way bearing are sleeved on the transmission shaft, and the one-way bearing is below the deep groove bearing.

[0010] In order to further better realize the manual deceleration and force-adding device of the circular knitting machine described in the present invention, the following setting structure is particularly adopted: a driving gear is installed above the deep groove bearing on the transmission shaft.

[0011] In order to further better realize the manual deceleration and force-adding device of the circular knitting machine described in the present invention, the following setting structure is particularly adopted: a fastening retaining ring is installed on the transmission shaft above the driving gear.

[0012] In order to further better realize the manual deceleration and force-adding device of the circular knitting machine described in the present invention, the following setting structure is particularly adopted: the movable handle seat is set on the fastening retaining ring above the driving gear and the transmission shaft.

[0013] In order to further better realize the manual deceleration and force-adding device of the circular knitting machine described in the present invention, the following setting structure is particularly adopted: the central column base is connected to the upper screw hole of the frame by bolts.

[0014] In order to further better realize the manual deceleration and force-adding device of the circular knitting machine described in the present invention, the following setting structure is particularly adopted: the main shaft system includes a transmission main shaft, a main shaft gear, a lower fastening retaining ring and an upper fastening retaining ring, the transmission main shaft is sleeved with the lower fastening retaining ring, the main shaft gear is sleeved above the lower fastening retaining ring, and the upper fastening retaining ring is sleeved above the main shaft gear, and the main shaft gear is horizontally meshed with the driving gear for transmission.

[0015] In order to further better realize the manual deceleration and force-enhancing device of the circular knitting machine described in the present invention, the following setting structure is particularly adopted: handle seat holes are respectively provided on the transmission system protective cover plate at positions corresponding to the transmission main shaft and the transmission shaft, and a dust cover bolt is provided between the two handle seat holes.

[0016] In order to further better realize the manual deceleration and force-enhancing device of a knitting circular machine described in the present invention, the following setting structure is particularly adopted: a dust cover is also provided on the transmission system protective cover cover plate, the dust cover is fixed by a dust cover bolt, and the dust cover rotates the movable handle seat with the dust cover bolt as the rotation axis.

[0017] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0018] (1) The present invention improves the existing circular knitting machine and makes use of the existing space of the machine model to make up for its shortcomings. It is simple to manufacture and easy to install. It also meets the needs of the development trend of large warp of circular knitting machines, making debugging convenient, saving time and effort, and improving quality.

[0019] (2) Since the ratio of the main shaft gear to the driving gear can be set to 1.2-2:1, the torque of the rotating transmission shaft increases by 0.1-2 times when the handle is moved, thereby saving effort. Compared with the original manual rotating handle of the large circular knitting machine, the forward stroke of the large circular knitting machine needle cylinder is reduced by 10-50% when the handle is rotated at the same angle, which can effectively solve the low-speed requirements during equipment production, maintenance and trial operation.

[0020] (3) The present invention effectively solves the load impact when the large circular knitting machine is slowly restarted after being shut down for maintenance, and reduces the jerking vibration of the needle cylinder during the original handle or inching operation. The present invention enables the large circular knitting machine to start at a low speed and knit slowly and gently, which effectively avoids the occurrence of weaving defects such as stop marks.

[0021] (4) Solve the problem that the existing variable frequency speed regulation starts and stops too quickly and the slow movement is not gentle and smooth enough. Especially during maintenance, it is easy to produce weaving defects such as stop marks.

[0022] (5) The original manual device is retained, which enables fast and slow manual operation, making it convenient to debug and maintain the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural diagram of an existing circular knitting machine.

[0024] Figure 2 It is a structural schematic diagram of the present invention.

[0025] Among them, 1- transmission spindle, 2- frame, 3- transmission shaft, 4- center column base, 5- bolt, 6- one-way bearing, 7- deep groove bearing, 8- driving gear, 9- fastening retaining ring, 10- movable handle seat, 11- handle, 12- spindle gear, 13- lower fastening retaining ring, 14- upper fastening retaining ring, 15- transmission system protective cover plate, 16- handle seat hole, 17- dust cover bolt, 18- dust cover. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below with reference to the examples, but the embodiments of the present invention are not limited thereto.

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention for which protection is sought, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0030] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0031] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0032] Example 1:

[0033] A manual deceleration and force-adding device for a circular knitting machine is improved on the basis of the existing circular knitting machine, making up for its shortcomings by utilizing the existing space of the equipment. It is simple to manufacture and easy to install. It also meets the needs of the development trend of large warps in circular knitting machines, achieving convenient debugging, saving time and labor, and reducing weaving defects, such as Figure 2 As shown, it cooperates with the main shaft system of the circular knitting machine, including a central column base 4 system as a support platform and a central column complex supported thereon, the central column complex includes a transmission shaft 3, a driving gear 8 sleeved on the transmission shaft 3 and a movable handle base 10 that cooperates with the driving gear 8; the driving gear 8 is meshed with the main shaft gear 12 on the main shaft system for transmission.

[0034] As a preferred design scheme, the manual deceleration and force-adding device is coordinated with the main shaft system of the circular knitting machine, which includes a central column base 4 system as a support platform and a central column complex supported thereon. The central column complex includes a transmission shaft 3, a driving gear 8 sleeved on the transmission shaft 3, and a movable handle seat 10 coordinated with the driving gear 8; the driving gear 8 is engaged with the main shaft gear 12 on the main shaft system for transmission.

[0035] Example 2:

[0036] This embodiment is further optimized based on the above embodiment, and the similarities with the above technical solutions are not repeated here. Figure 2 As shown, in order to better realize the manual deceleration and force-adding device of the circular knitting machine described in the present invention, the following setting structure is particularly adopted: the central column base 4 is arranged below the driving gear 8.

[0037] As a preferred design solution, the center column base 4 system is in the vertical direction of the transmission shaft 3 and is located below the driving gear 8; preferably, the driving gear 8 is sleeved on the middle part of the transmission shaft 3.

[0038] Example 3:

[0039] This embodiment is further optimized based on any of the above embodiments, and the similarities with the above technical solutions are not repeated here. Figure 2 As shown, in order to better realize the manual deceleration and force-enhancing device of a knitting circular machine described in the present invention, the following setting structure is particularly adopted: the center column base 4 system includes a center column base 4 and a deep groove bearing 7 and a one-way bearing 6 loaded in the center column base 4, and the deep groove bearing 7 and the one-way bearing 6 are sleeved on the transmission shaft 3, and the one-way bearing 6 is below the deep groove bearing 7.

[0040] As a preferred design scheme, the center column base 4 system includes a center column base 4 and a deep groove bearing 7 and a one-way bearing 6 loaded in the center column base 4, and the deep groove bearing 7 and the one-way bearing 6 are sleeved on the transmission shaft 3, and the one-way bearing 6 is below the deep groove bearing 7.

[0041] Example 4:

[0042] This embodiment is further optimized based on any of the above embodiments, and the similarities with the above technical solutions are not repeated here. Figure 2 As shown, in order to better realize the manual deceleration and force-adding device of the circular knitting machine described in the present invention, the following setting structure is particularly adopted: a driving gear 8 is installed above the deep groove bearing 7 on the transmission shaft 3.

[0043] Example 5:

[0044] This embodiment is further optimized based on any of the above embodiments, and the similarities with the above technical solutions are not repeated here. Figure 2 As shown, in order to better realize the manual deceleration and force-adding device of the circular knitting machine described in the present invention, the following setting structure is particularly adopted: a fastening ring 9 is installed on the transmission shaft 3 above the driving gear 8.

[0045] Example 6:

[0046] This embodiment is further optimized based on any of the above embodiments, and the similarities with the above technical solutions are not repeated here. Figure 2 As shown, in order to better realize the manual deceleration and force-adding device of the circular knitting machine described in the present invention, the following setting structure is particularly adopted: the movable handle seat 10 is sleeved on the fastening ring 9 above the driving gear 8 and the transmission shaft 3.

[0047] Example 7:

[0048] This embodiment is further optimized based on any of the above embodiments, and the similarities with the above technical solutions are not repeated here. Figure 2As shown, in order to better realize the manual deceleration and force-adding device of the circular knitting machine described in the present invention, the following setting structure is particularly adopted: the central column base 4 is connected to the upper screw hole of the frame 2 through the bolt 5.

[0049] Example 8:

[0050] This embodiment is further optimized based on any of the above embodiments, and the similarities with the above technical solutions are not repeated here. Figure 2 As shown, in order to better realize the manual deceleration and force-adding device of a circular knitting machine described in the present invention, the following setting structure is particularly adopted: the main shaft system includes a transmission main shaft 1, a main shaft gear 12, a lower fastening retaining ring 13 and an upper fastening retaining ring 14, the transmission main shaft 1 is sleeved with the lower fastening retaining ring 13, the main shaft gear 12 is sleeved above the lower fastening retaining ring 13, and the upper fastening retaining ring 14 is sleeved above the main shaft gear 12, and the main shaft gear 12 is horizontally meshed with the driving gear 8 for transmission.

[0051] Example 9:

[0052] This embodiment is further optimized based on any of the above embodiments, and the similarities with the above technical solutions are not repeated here. Figure 2 As shown, in order to better realize the manual deceleration and force-enhancing device of a circular knitting machine described in the present invention, the following setting structure is particularly adopted: handle seat holes 16 are respectively provided on the transmission system protective cover plate 15 at positions corresponding to the transmission main shaft 1 and the transmission shaft 3, and a dust cover bolt 17 is provided between the two handle seat holes 16.

[0053] Example 10:

[0054] This embodiment is further optimized based on any of the above embodiments, and the similarities with the above technical solutions are not repeated here. Figure 2 As shown, in order to better realize the manual deceleration and force-enhancing device of a knitting circular machine described in the present invention, the following setting structure is particularly adopted: a dust cover 18 is also provided on the transmission system protective cover plate 15, and the dust cover 18 is fixed by a dust cover bolt 17, and the dust cover 18 rotates with the dust cover bolt 17 as the rotation axis to cover the movable handle seat 10 when the handle 11 is not inserted.

[0055] Example 11:

[0056] This embodiment is further optimized based on any of the above embodiments, and the similarities with the above technical solutions are not repeated here. Figure 2As shown, a manual deceleration and force-adding device for a circular knitting machine is provided. The center column base 4 and the center column combination of the present invention are made of 45# steel or ZG200-400 cast steel and HT200 or above cast iron. At the upper end of the transmission main shaft 1 of the circular knitting machine is a main shaft gear 12. The main shaft gear 12 adopts 30-50 teeth, 2.5-3 mold inner hole diameter 20-30 mm, and the main shaft gear 12 is matched horizontally with the driving gear 8. The driving gear 8 adopts 2.5-3 teeth, and the inner hole diameter of the mold is 15-35 mm. The matching ratio of the main shaft gear 12 to the driving gear 8 is 1.2-2:1. The transmission shaft 3 is vertically mounted in the center column base 4. The center column base 4 is connected to the frame 2 by a bolt 5. A one-way bearing 6 and a deep groove bearing 7 are installed in the assembly position of the center column base 4. The inner holes of the one-way bearing 6 and the deep groove bearing 7 are sleeved on the lower part of the transmission shaft 3. The driving gear 8 is assembled on the transmission shaft 3 above the deep groove bearing 7. The transmission shaft 3 is installed with a movable handle seat 10 at the position of the fastening retaining ring 9. The inner hole of the movable handle seat 10 is used to insert the handle 11.

[0057] When the operator moves the handle 11 on the center column assembly, the drive shaft 3, controlled by the one-way bearing 6, rotates only in the opposite direction of the knitting machine's main shaft. This drives the main shaft gear 12 in turn, and the drive shaft 1 within the main shaft gear 12 rotates accordingly, thereby driving the knitting machine. Because the ratio of the main shaft gear 12 to the drive shaft gear 8 is 1.2-2:1, the torque required to rotate the drive shaft 3 increases by 0.2-1 times when the handle 11 is moved, saving effort. Compared to conventional knitting machines with manually rotating the handle 11, rotating the handle 11 by the same angle reduces the needle cylinder's forward travel by 10-50%, effectively addressing the low-speed requirements of production, maintenance, and commissioning. Similarly, when the operator inserts the movable handle holder 10 onto the upper end of the drive shaft 1, the drive shaft 1 rotates accordingly, also driving the knitting machine. This allows for multiple speed settings during manual knitting, facilitating production and maintenance needs.

[0058] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent change made to the above embodiment based on the technical essence of the present invention shall fall within the scope of protection of the present invention.

Claims

1. A manual deceleration and boosting device for a circular knitting machine, which is in transmission cooperation with the main shaft system of the circular knitting machine, and is characterized by: It comprises a central column base (4) system as a support platform and a central column complex supported thereon, wherein the central column complex comprises a transmission shaft (3), a driving gear (8) sleeved on the transmission shaft (3), and a movable handle seat (10) matched with the driving gear (8); The center column base (4) system is arranged below the driving gear (8); the center column base (4) system includes the center column base (4) and a deep groove bearing (7) and a one-way bearing (6) loaded in the center column base (4), and the deep groove bearing (7) and the one-way bearing (6) are sleeved on the transmission shaft (3); the driving gear (8) is installed above the deep groove bearing (7) on the transmission shaft (3); The main shaft system comprises a transmission main shaft (1), a main shaft gear (12), a lower fastening retaining ring (13) and an upper fastening retaining ring (14); the transmission main shaft (1) is sleeved with the lower fastening retaining ring (13); the main shaft gear (12) is sleeved above the lower fastening retaining ring (13); the upper fastening retaining ring (14) is sleeved above the main shaft gear (12); the main shaft gear (12) is horizontally meshed with the driving gear (8) for transmission.

2. A manual deceleration and force-adding device for a circular knitting machine according to claim 1, characterized in that: A fastening retaining ring (9) is installed on the transmission shaft (3) above the driving gear (8).

3. The manual deceleration and boosting device for a circular knitting machine according to claim 2, characterized in that: The movable handle seat (10) is sleeved on the fastening retaining ring (9) above the driving gear (8) and the transmission shaft (3).

4. The manual deceleration and force-adding device for a circular knitting machine according to claim 1, characterized in that: The center column base (4) is connected to the upper screw hole of the frame (2) via bolts (5).

5. The manual deceleration and force-adding device for a circular knitting machine according to claim 1, characterized in that: Handle seat holes (16) are respectively provided on the transmission system protective cover plate (15) at positions corresponding to the transmission main shaft (1) and the transmission shaft (3), and a dust cover bolt (17) is provided between the two handle seat holes (16).

6. The manual deceleration and force-adding device for a circular knitting machine according to claim 5, characterized in that: A dust cover (18) is also provided on the transmission system protective cover plate (15). The dust cover (18) is fixed by a dust cover bolt (17). The dust cover (18) rotates around the dust cover bolt as a rotation axis to cover the movable handle seat (10).

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