Quick bobbin positioning device for knitted gray fabric

Abstract

The utility model discloses a quick bobbin positioning device for knitting gray fabric, which belongs to the technical field of bobbin replacement and comprises a supporting mechanism, the supporting mechanism comprises a first frame, a second frame, two sets of bobbin fixing mechanisms and a bobbin positioning mechanism, and the bobbin fixing mechanisms are arranged on the first frame. The two sets of bobbin fixing mechanisms are arranged on the upper side and the lower side of the supporting mechanism correspondingly, and the bobbin fixing mechanisms are used for fixing a first bobbin serving as a preparation bobbin and fixing a second bobbin serving as a use bobbin. The two bobbin fixing mechanisms are arranged on the supporting mechanism of the bobbins to fix the two bobbins respectively, when the bobbins are replaced, the two bobbin fixing mechanisms loosen the first bobbin on the upper side and the second bobbin on the lower side respectively, and in the downward sliding process of the first bobbin, the bobbins are fixed through the two bobbin fixing mechanisms. And the bobbin fixing mechanism resets and fixes the falling first bobbin, so that the replacement efficiency of the bobbins is improved.

Description

Technical Field

[0001] This utility model relates to a quick positioning device for yarn spools used in knitted fabrics, belonging to the field of yarn spool replacement technology. Background Technology

[0002] In the production of knitted fabric, the yarn bobbin is the core carrier of yarn supply, and its replacement efficiency directly determines the continuous production capacity and overall production efficiency of the knitting equipment. The knitting of fabric requires a continuous and stable yarn input. When the yarn in the currently used bobbin is exhausted, a new bobbin must be replaced immediately. If there is a delay or malfunction in the replacement process, it will directly lead to the shutdown of the knitting equipment, causing production interruption, increasing time costs and capacity loss.

[0003] Currently, the mainstream method for changing yarn spools in the industry is manual replacement. This method requires operators to stop the machine, manually remove the used yarn spools, move the spare yarn spools to a fixed position, manually adjust the positioning, and tighten them. This process involves multiple manual operations, which not only results in long downtime, but also the accuracy of manual positioning is greatly affected by the operator's experience, which can easily lead to yarn spool position deviations. This can cause unstable yarn tension in the subsequent process, requiring additional time for calibration and further extending the production interruption cycle. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a quick positioning device for yarn spools used in knitting fabric.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a quick positioning device for yarn spools of knitted fabric, including a support mechanism. The support mechanism includes a first frame, a second frame, a yarn spool fixing mechanism, and a yarn spool positioning mechanism. The yarn spool fixing mechanism is provided in two sets, which are respectively arranged on the upper and lower sides of the support mechanism. The yarn spool fixing mechanism is used to fix a first yarn spool as a pre-prepared yarn spool and a second yarn spool as a used yarn spool. The yarn spool fixing mechanism includes two clamping blocks, which are rotatably mounted on the first frame and the second frame, respectively. An arc-shaped rack is fixedly mounted on the clamping blocks. A drive shaft is rotatably mounted on the first frame and / or the second frame. A drive gear is fixedly mounted on the drive shaft. The drive gear meshes with the arc-shaped rack. A drive motor for controlling the rotation of the drive gear is also fixedly mounted on the first frame and / or the second frame.

[0006] Preferably, the drive shaft in the upper spool fixing mechanism and the drive shaft in the lower spool fixing mechanism are connected by a synchronous belt drive.

[0007] Preferably, the support mechanism is provided with a buffer mechanism, which includes a plurality of buffer blocks rotatably mounted on a first frame and a second frame, and mounting seats corresponding to each buffer block. The mounting seats are fixed to the first frame or the second frame, and the mounting seats are connected to the corresponding buffer blocks by a return spring.

[0008] Preferably, the spool positioning mechanism is used to position the second spool. The spool positioning mechanism includes a positioning seat and a cylinder, and the telescopic end of the cylinder is fixedly connected to the positioning seat.

[0009] Preferably, the positioning seat has two symmetrical sliding grooves on the side away from the cylinder, and a connecting rod is slidably installed inside the sliding groove. One end of the connecting rod is connected to the sliding groove through a connecting spring, and the other end of the connecting rod is fixedly installed with a positioning block. The shafts of the first spool and the second spool are both connected to the positioning shaft through a connecting shaft.

[0010] Preferably, the positioning shaft has a plurality of positioning holes, and the inner side of the positioning block has a plurality of positioning protrusions that are adapted to the positioning holes.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model sets two spool fixing mechanisms on the spool support mechanism to fix the two spools respectively. When the spool is replaced, the two spool fixing mechanisms loosen the upper first spool and the lower second spool respectively. During the downward sliding of the first spool, the spool fixing mechanism resets and fixes the falling first spool, thereby improving the efficiency of spool replacement. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0013] Figure 1 Schematic diagram of a quick positioning device for yarn spools used in knitting fabric Figure 1 ;

[0014] Figure 2 Schematic diagram of a quick positioning device for yarn spools used in knitting fabric Figure 2 ;

[0015] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle;

[0016] Figure 4A schematic diagram of the second bobbin and bobbin positioning mechanism in a rapid positioning device for knitted fabric bobbins;

[0017] Figure 5 A schematic diagram of the bobbin positioning mechanism in a rapid positioning device for knitted fabric bobbins.

[0018] In the diagram: 10-Support mechanism, 11-First frame, 12-Second frame, 13-Connecting frame, 14-Mounting frame, 20-First spool, 30-Second spool, 31-Connecting shaft, 32-Positioning shaft, 321-Positioning hole, 40-Spool fixing mechanism, 41-Clamping block, 42-Arc rack, 43-Drive gear, 44-Drive shaft, 45-Synchronous belt, 46-Drive motor, 50-Spool positioning mechanism, 51-Positioning seat, 52-Cylinder, 53-Positioning block, 54-Connecting rod, 55-Connecting spring, 60-Buffer mechanism, 61-Mounting seat, 62-Reset spring, 63-Buffer block. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-5 This utility model provides a quick positioning device for yarn spools used in knitted fabrics, including a support mechanism 10, a yarn spool fixing mechanism 40, and a yarn spool positioning mechanism 50. The support mechanism 10 includes a first frame 11 and a second frame 12, as shown below. Figure 1As shown, there are two of each of the first frame 11 and the second frame 12. The two first frames 11 are connected by a connecting frame 13, and the two second frames 12 are connected by a connecting frame 13. There is a gap between the first frame 11 and the second frame 12, which is used to accommodate the shafts of the first spool 20 and the second spool 30. The spool fixing mechanism 40 and the spool positioning mechanism 50 are both installed on the support mechanism 10. There are two sets of spool fixing mechanisms 40, which are respectively located on the upper and lower sides of the support mechanism 10. The spool fixing mechanism 40 is used to fix the first spool 20 as a pre-loaded spool and the second spool 30 as a used spool. The spool positioning mechanism 50 is installed on the lower side of the support mechanism 10, with the lower spool fixing mechanism 40 located on the inner side of the support mechanism 10 and the spool positioning mechanism 50 located on the outer side of the support mechanism 10. The spool positioning mechanism 50 is used to position the second spool 30 to prevent the second spool 30 from deviating from the preset position. The spool fixing mechanism 40 includes two clamping blocks 41, which are rotatably mounted on a first frame 11 and a second frame 12, respectively. An arc-shaped rack 42 is fixedly mounted on each clamping block 41. A drive shaft 44 is rotatably mounted on the first frame 11 and / or the second frame 12, and a drive gear 43 is fixedly mounted on the drive shaft 44. The drive gear 43 meshes with the arc-shaped rack 42. A drive motor 46 for controlling the rotation of the drive gear 43 is also fixedly mounted on the first frame 11 and / or the second frame 12. The drive motor 46 is mounted on the first frame 11 and / or the second frame 12 via a mounting bracket 14. When the drive motor 46 controls the drive gear 43 to rotate, the drive gear 43 controls the clamping blocks 41 to rotate via the arc-shaped rack 42. Figure 3 When the first spool 20 is in the middle position, the clamping block 41 clamps and fixes the shaft of the first spool 20 to prevent the first spool 20 from falling downwards.

[0021] It should be noted that the drive shaft 44 in the upper spool fixing mechanism 40 and the drive shaft 44 in the lower spool fixing mechanism 40 are connected by a synchronous belt 45 so that the drive motor 46 can synchronously drive the drive shafts 44 in the two spool fixing mechanisms 40 to rotate. When the second spool 30 is used up, the drive motor 46 starts and controls the clamping block 41 to rotate, so that the upper spool fixing mechanism 40 releases the first spool 20, and the lower spool fixing mechanism 40 simultaneously releases the second spool 30. After the second spool 30 is unfixed, it detaches from the support mechanism 10. After the first spool 20 is unfixed, it slides down along the support mechanism 10. During the downward sliding of the first spool 20, the drive motor 46 controls the clamping block 41 to rotate in the opposite direction, so that the clamping block 41 returns to the clamping state to fix the falling first spool 20.

[0022] To prolong the descent time of the first spool 20 along the support mechanism 10 and provide sufficient time for the clamping block 41 to rotate, a buffer mechanism 60 is provided on the support mechanism 10. The buffer mechanism 60 includes multiple buffer blocks 63 rotatably mounted on the first frame 11 and the second frame 12, and mounting seats 61 corresponding to each buffer block 63. The mounting seats 61 are fixed to the first frame 11 or the second frame 12, and the mounting seats 61 are connected to the corresponding buffer blocks 63 by a return spring 62. During the descent of the first spool 20, the shaft of the first spool 20 collides with the multiple buffer blocks 63 in sequence, thereby reducing the kinetic energy of the first spool 20 and prolonging the descent time of the first spool 20.

[0023] Please see Figures 4-5 In this embodiment, the spool positioning mechanism 50 includes a positioning seat 51 and a cylinder 52. The telescopic end of the cylinder 52 is fixedly connected to the positioning seat 51. Two sliding grooves are symmetrically opened on the side of the positioning seat 51 away from the cylinder 52. A connecting rod 54 is slidably installed inside the sliding groove. One end of the connecting rod 54 is connected to the sliding groove through a connecting spring 55, and a positioning block 53 is fixedly installed on the other end of the connecting rod 54. The shafts of the first spool 20 and the second spool 30 are both connected to the positioning shaft 32 through the connecting shaft 31. When positioning the first spool 20 or the second spool 30, the cylinders 52 located on both sides of the spool extend synchronously, causing the positioning seat 51 to squeeze the positioning shaft 32, thereby adjusting the lateral position of the spool. During this process, the positioning block 53 adaptively clamps the positioning shaft 32 under the action of the connecting spring 55, further improving the positioning effect of the spool.

[0024] Furthermore, in this embodiment of the application, the positioning shaft 32 is provided with a plurality of positioning holes 321, and the inner side of the positioning block 53 is provided with a plurality of positioning protrusions that are adapted to the positioning holes 321. When the positioning block 53 positions the bobbin, the positioning protrusions are engaged in the interior of the positioning holes 321, effectively preventing the bobbin from moving.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A knitting fabric yarn package quick positioning device comprising a support mechanism (10) comprising a first frame (11) and a second frame (12), characterized in that, It also includes a spool fixing mechanism (40) and a spool positioning mechanism (50). The spool fixing mechanism (40) is provided in two sets. The two sets of spool fixing mechanisms (40) are respectively provided on the upper side and the lower side of the support mechanism (10). The spool fixing mechanism (40) is used to fix the first spool (20) as a pre-prepared spool and the second spool (30) as a used spool. The spool fixing mechanism (40) includes two clamping blocks (41). The two clamping blocks (41) are respectively rotatably mounted on the first frame (11) and the second frame (12). An arc-shaped rack (42) is fixedly mounted on the clamping block (41). A drive shaft (44) is rotatably mounted on the first frame (11) and / or the second frame (12). A drive gear (43) is fixedly mounted on the drive shaft (44). The drive gear (43) meshes with the arc-shaped rack (42).

2. The quick positioning device for a knitting fabric yarn bobbin according to claim 1, wherein The first frame (11) and / or the second frame (12) are also fixedly mounted with a drive motor (46) for controlling the rotation of the drive gear (43).

3. The quick positioning device for a knitting fabric according to claim 2, wherein The drive shaft (44) in the upper spool fixing mechanism (40) and the drive shaft (44) in the lower spool fixing mechanism (40) are connected by a synchronous belt (45).

4. The quick positioning device for a knitting fabric according to claim 3, wherein The support mechanism (10) is provided with a buffer mechanism (60), which includes a plurality of buffer blocks (63) rotatably mounted on the first frame (11) and the second frame (12) and mounting seats (61) corresponding to the buffer blocks (63). The mounting seats (61) are fixed to the first frame (11) or the second frame (12), and the mounting seats (61) are connected to the corresponding buffer blocks (63) by a return spring (62).

5. The quick positioning device for a knitting fabric according to claim 1, wherein The spool positioning mechanism (50) is used to position the second spool (30). The spool positioning mechanism (50) includes a positioning seat (51) and a cylinder (52). The telescopic end of the cylinder (52) is fixedly connected to the positioning seat (51).

6. The device according to claim 5, wherein The positioning seat (51) has two symmetrical sliding grooves on the side away from the cylinder (52). A connecting rod (54) is slidably installed inside the sliding groove. One end of the connecting rod (54) is connected to the sliding groove through a connecting spring (55), and the other end of the connecting rod (54) is fixedly installed with a positioning block (53). The shafts of the first spool (20) and the second spool (30) are both connected to the positioning shaft (32) through the connecting shaft (31).

7. The device according to claim 6, wherein The positioning shaft (32) has several positioning holes (321), and the inner side of the positioning block (53) has several positioning protrusions that are adapted to the positioning holes (321).

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