Lead screw rubber band sorting mechanism

Abstract

The utility model relates to the field of flat knitting machine weaving, especially a screw rod rubber band sorting mechanism, including screw rod, two screw rods are arranged in parallel and are driven to rotate by first motor to realize forward rotation or reverse rotation, wherein, the screw rod or includes inner rod and outer rod, the inner rod is linked with first motor, the outer rod is detachably sleeved outside the inner rod, and the outer rod is nylon outer rod or rubber outer rod, the screw rod is nylon or rubber of full material quality. After the above scheme is used, the rubber band is protected, and the maintenance cost of the screw rod is reduced.

Description

Technical Field

[0001] This utility model relates to the field of flat knitting machines, and specifically refers to a screw elastic band sorting mechanism. Background Technology

[0002] A computerized glove knitting machine is a double-needle plate-latch weft knitting machine. Its cam mechanism is like a set of planar cams. The needle feet can enter the grooves of the cams. Moving the cams forces the knitting needles to make regular up-and-down movements within the needle grooves of the needle plate. Through the actions of the hook and the latch, the yarn can be knitted into fabric. During the upward movement of the knitting needle, the loops gradually exit the hook, the latch opens, and the loops are hung on the needle bar. During the downward movement of the knitting needle, the hook catches the newly placed yarn and pulls it to bend it into a loop. At the same time, the existing loops exit the hook, and the new loops pass through the old loops, connecting with them in series. Numerous loops knitted together form the knitted fabric.

[0003] After the knitted fabric is formed between the double needle plates, it falls and is neatly transferred to a platform or conveyor belt outside the computerized flat knitting machine by an automatic sorting device such as that disclosed in CN202111320479.3. Then, the neatly stacked knitted fabric is automatically bundled by an automatic bundling device.

[0004] The applicant previously applied for a composite umbrella claw in CN202420428298.5 for gripping rubber bands on a lead screw. However, after a period of production testing, the applicant found that the metal thread grooves of the lead screw caused significant damage to the rubber bands, and once the lead screw was damaged, the entire lead screw needed to be replaced.

[0005] Therefore, the inventors conducted further research and developed a screw-type rubber band sorting mechanism, which led to this invention. Utility Model Content

[0006] The purpose of this invention is to provide a screw-type rubber band sorting mechanism that protects the rubber bands and reduces maintenance costs.

[0007] To achieve the above objectives, the technical solution of this utility model is as follows:

[0008] A screw-type rubber band sorting mechanism, comprising

[0009] Two lead screws are arranged in parallel and driven by a first motor to achieve forward or reverse rotation;

[0010] in,

[0011] The lead screw may include an inner rod and an outer rod. The inner rod is linked to the first motor, and the outer rod is detachably sleeved outside the inner rod. The outer rod is a nylon outer rod or a rubber outer rod.

[0012] The lead screw may be made entirely of nylon or rubber.

[0013] By having a detachable, softer outer rod contact the rubber band, damage to the rubber band from the lead screw can be reduced.

[0014] Furthermore, it also includes a gripping mechanism, which is located at the end of the drive rod. The second motor drives the drive rod to rotate, thereby controlling the opening and closing of the gripping mechanism.

[0015] The gripping mechanism is a prior patented technology used to remove rubber bands from two lead screws.

[0016] Furthermore, a limit stop is provided at the end of the lead screw, and the limit stop is fixed by a fastener, which is connected to the inner rod; the diameter of the limit stop is larger than the diameter of the lead screw.

[0017] The limit stop is used to prevent the rubber band from falling off the lead screw on its own.

[0018] Furthermore, a washer is provided between the limit stop and the lead screw, and the fastener passes through the through hole between the limit stop and the washer; the diameter of the washer is smaller than the diameter of the lead screw.

[0019] Fasteners are generally bolts, and washers allow the rubber band to remain in its position, making it easier for the gripping mechanism to grasp it.

[0020] Furthermore, the first motor drives the driving wheel to rotate, and the driving wheel drives two driven wheels to rotate through the synchronous belt. The driven wheels are linked with the lead screw.

[0021] Furthermore, the gripping mechanism includes four pairs of compound claws, which can enter between the lead screws to grip the rubber band when the drive rod rotates.

[0022] The structure is consistent with the structure of the prior patent.

[0023] By adopting the above solution, this utility model has the following advantages compared with the prior art:

[0024] This design avoids damage to the rubber band caused by the metal lead screw, and the detachable structure makes the maintenance and replacement of the lead screw more convenient, reducing maintenance costs. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the present invention;

[0026] Figure 2 This is a schematic diagram of the motor drive;

[0027] Figure 3 This is one of the schematic diagrams of a lead screw;

[0028] Figure 4 This is the second schematic diagram of the lead screw;

[0029] Label Explanation

[0030] Lead screw 1, inner rod 11, outer rod 12, fastening bolt 13, limit stop 14

[0031] Gasket 15, composite claw 2, drive rod 3, first motor 4, drive wheel 41

[0032] Second motor 5, driven pulley 51, synchronous belt 6. Detailed Implementation

[0033] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, taking a lead screw with a nylon outer rod and a metal inner rod as an example.

[0034] like Figure 1 As shown, a lead screw rubber band sorting mechanism includes a lead screw 1 for providing rubber bands and a gripping mechanism for gripping the rubber bands. The gripping mechanism, as shown in prior patent CN202420428298.5, uses a second motor 5 to drive a drive rod 3 to rotate. Through a threaded structure at the end of the drive rod 3, four composite claws 2 mounted on the drive rod 3 swing. The composite claws 2, through their retracting and opening actions, remove the rubber bands wound around the lead screw 1.

[0035] The drive of lead screw 1 is as follows Figure 2 As shown, the first motor 4 drives the drive wheel 41 to rotate, which in turn drives the synchronous belt 6 on it to run. After being driven by the drive wheel 41, the synchronous belt 6 drives the two driven wheels 51 to rotate. The driven wheels 51 are then linked with their respective lead screws 1, which eventually makes the two lead screws 1 rotate synchronously, thereby causing the rubber band to gradually separate on the thread of the lead screw 1.

[0036] The structure of lead screw 1 is as follows Figure 3 , 4As shown, it includes a metal inner rod 11 and a nylon outer rod 12. The inner rod 11 is linked to the driven wheel 51, and the outer rod 12 is detachably sleeved outside the inner rod 11. At the end of the lead screw 1, a fastening bolt 13 passes through a limiting baffle 14 and is fixed to the inner rod 11. The diameter of the limiting baffle 14 is larger than the diameter of the outer rod 12. The limiting baffle 14 serves to block the rubber band and the outer rod 12. Meanwhile, as a preferred option, an annular washer 15 is added between the limiting baffle 14 and the end of the lead screw 1. Since the outer rod 12 has continuous threads, the rubber band will be embedded in the threads and rotate with the outer rod 12 when it rotates, thereby achieving separation. Although the limiting baffle 14 plays a blocking role, in order to prevent the rubber band from stacking at the end, the lead screw 1 will rotate forward and reverse to make the rubber bands separate sequentially and be distributed more evenly on the lead screw 1. Since the position of the compound claw is consistent each time, in order to ensure that the compound claw only grasps one at a time, a washer 15 with a smaller diameter is set at the end. This allows the rubber band that rotates to the end of the lead screw 1 to stay at that position and not follow the lead screw to rotate back, thereby separating it from a bundle of rubber bands and making it easier for the compound claw to grasp.

[0037] The separation of the inner rod 11 and the outer rod 12 can be achieved by removing the fastening bolt 13. Even if the threads of the outer rod 12 are damaged, only the outer rod 12 needs to be replaced, and the entire lead screw 1 needs to be replaced if necessary.

[0038] When the lead screw is made entirely of nylon or rubber, the overall structural strength of the lead screw needs to be considered. However, the above materials are existing technologies and do not involve any changes to their composition.

[0039] The above are merely specific embodiments of this utility model. Furthermore, terms such as "upper," "lower," "left," "right," and "middle" used in this utility model are for reference only and are not absolute limitations. Any non-substantial modifications made to this utility model shall be considered as infringing upon the protection scope of this utility model.

Claims

1. A screw-type rubber band sorting mechanism, characterized in that: include Two lead screws are arranged in parallel and driven by a first motor to achieve forward or reverse rotation; in, The lead screw may include an inner rod and an outer rod. The inner rod is linked to the first motor, and the outer rod is detachably sleeved outside the inner rod. The outer rod is a nylon outer rod or a rubber outer rod. The lead screw may be made entirely of nylon or rubber.

2. The screw-type rubber band sorting mechanism according to claim 1, characterized in that: It also includes a gripping mechanism, which is located at the end of the drive rod. The second motor drives the drive rod to rotate, thereby controlling the opening and closing of the gripping mechanism.

3. The screw-type rubber band sorting mechanism according to claim 1, characterized in that: The end of the lead screw is provided with a limit stop, which is fixed by a fastener and connected to the inner rod; the diameter of the limit stop is larger than the diameter of the lead screw.

4. The screw-type rubber band sorting mechanism according to claim 3, characterized in that: A washer is also provided between the limit stop and the lead screw, and the fastener passes through the through hole between the limit stop and the washer; the diameter of the washer is smaller than the diameter of the lead screw.

5. The screw-type rubber band sorting mechanism according to claim 1, characterized in that: The first motor drives the driving wheel to rotate, and the driving wheel drives two driven wheels to rotate through the synchronous belt. The driven wheels are linked with the lead screw.

6. A screw-type rubber band sorting mechanism according to claim 2 or 4, characterized in that: The gripping mechanism includes four pairs of compound claws, which can enter between the lead screws to grip the rubber band when the drive rod rotates.

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