Improved structure of traction rake

Abstract

The utility model discloses an improved structure of a traction harrow, which relates to the technical field of computerized flat knitting machine production and comprises a harrow frame, a traction hook, a traction hook seat, a traction rod, a driving mechanism and a driving fixing seat, the traction hook is mounted on the traction hook seat, the traction hook seat is mounted on the traction rod, and the traction rod is mounted on the harrow frame. The driving mechanism comprises a driving motor, the bottom of the driving motor is provided with a positioning hole, the driving motor is connected to the harrow frame, the driving fixing seat is fixedly installed on the driving motor, the driving mechanism further comprises a lead screw and a sliding block, the lead screw is fixedly connected to the outer wall of one side of the driving motor and slidably connected into the harrow frame, and the sliding block is in threaded connection with the lead screw. According to the improved structure of the traction harrow, the driving mechanism is installed outside the harrow frame so as to meet the requirement for connection of a high-power driving motor, enough traction force can be provided in the depreciation process of special-pattern and locally-woven fabric, weaving can be completed, the working speed of the traction harrow can be increased, and the weaving efficiency and quality can be improved.

Description

Technical Field

[0001] This utility model relates to the field of computerized flat knitting machine production technology, and more specifically to an improved structure of a pull rake. Background Technology

[0002] During the weaving process of a computerized flat knitting machine, a pulling device is needed to pull the fabric downwards to prevent the loops from floating. Initially, a roller device was used, which uses rollers rotating in opposite directions to clamp and pull the fabric downwards. This pulling device is suitable for pulling the fabric as a whole, but it is difficult to pull the fabric locally. Even with segmented rollers, the pulling effect is poor, easily resulting in waste. For complex weaving, such as full-form weaving, it is even more impossible to achieve the required pulling effect. Later, a pulling rake was adopted to pull the fabric. During operation, the alternating up and down movement of the pulling hooks in adjacent pulling rakes achieves localized downward pulling of the fabric, effectively meeting the current weaving requirements of fabrics.

[0003] The invention relates to a fabric layering pull rake disclosed in the utility model patent previously filed by the inventor, with publication number CN216998775U and publication date July 19, 2022. While this rake can meet weaving requirements under normal conditions, it is difficult to meet the requirements in the weaving of certain special fabrics, such as those with special patterns or partial weaving. Due to the limitations of the pull rake's own specifications, the power of the bottom drive motor is generally relatively small. However, since the pull rake's specifications are not compatible with motors with higher power, high-power motors cannot be installed in the existing pull rake structure. Therefore, an improved pull rake structure is proposed, aiming to provide an improved pull rake structure that allows for the installation of a motor with increased power to meet the weaving requirements of current special patterns and partial weaving, thereby improving performance. Utility Model Content

[0004] The purpose of this invention is to provide an improved structure for a pull rake, which allows for the installation of a motor with increased power to meet the requirements of special patterns and partial weaving, thereby improving performance.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An improved structure of a pull rake includes a rake frame, a pull hook, a pull hook seat, and a pull rod. The pull hook is mounted on the pull hook seat, the pull hook seat is mounted on the pull rod, and the pull rod is mounted on the rake frame. It also includes a drive mechanism and a drive mounting base. The drive mechanism includes a drive motor with a positioning hole at its bottom. The drive motor is connected to the rake frame. The drive mounting base is fixedly installed on the drive motor. It also includes a lead screw and a slider. The lead screw is fixedly connected to the drive motor and slidably connected to the inside of the rake frame, and the slider is threadedly connected to the lead screw.

[0007] Preferably, a connecting seat is also included. The rake frame is provided with an abutment ear, the drive fixing seat is provided with a fixing hole, the top of the connecting seat is provided with an abutment groove, the bottom of the connecting seat is provided with a connecting hole, the top of the connecting seat abuts with the abutment ear, and the bottom of the connecting seat is connected to the fixing hole through the connecting hole and a screw.

[0008] Preferably, the device also includes a limiting baffle and a resetting device. The rake frame has a sliding groove inside, one end of which is open. The limiting baffle is embedded in the open structure at one end of the sliding groove. One end of the resetting device is connected to the pull rod, and the other end is connected to the limiting baffle.

[0009] Preferably, a protective cover plate is also included, wherein a limiting block is provided on the protective cover plate, an abutting block is provided on the slider, the protective cover plate is threadedly connected to the rake frame, the limiting block abuts against the limiting baffle, and the abutting block abuts against the protective cover plate.

[0010] In the above technical solution, the improved structure of the pull rake provided by this utility model has the following beneficial effects:

[0011] In this invention, the drive mechanism is installed outside the rake frame to connect with a high-power drive motor, thereby providing sufficient traction during the weaving process of special patterns and partial weaving, completing the weaving, and improving the efficiency and quality of weaving. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0013] Figure 1 This is a schematic diagram of the overall three-dimensional structure provided for an embodiment of the present utility model;

[0014] Figure 2 A schematic diagram of the planar structure provided for an embodiment of this utility model;

[0015] Figure 3 This is a schematic diagram of the three-dimensional structure of the rake frame provided in an embodiment of the present utility model;

[0016] Figure 4 A schematic diagram of the second embodiment of the connector provided in this utility model;

[0017] Figure 5 A schematic diagram of the assembly structure provided for an embodiment of this utility model.

[0018] Explanation of reference numerals in the attached figures:

[0019] 1. Rake frame; 11. Positioning hole; 12. Abutment ear; 13. Slide groove; 2. Pull hook; 3. Pull hook seat; 4. Pull rod; 5. Drive mechanism; 51. Drive motor; 52. Lead screw; 53. Slider; 54. Abutment block; 55. Lead screw nut; 6. Drive fixing seat; 61. Fixing hole; 7. Connecting seat; 71. Abutment groove; 72. Connecting hole; 8. Limiting baffle; 9. Protective cover plate; 91. Limiting block. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0021] Please see Figure 1 —5, an improved structure of a pull rake, including a pull hook 2, a pull hook seat 3, a pull rod 4, and a rake frame 1. The pull hook 2 is mounted on the pull hook seat 3, the pull hook seat 3 is mounted on the pull rod 4, and the pull rod 4 is mounted on the rake frame 1. It also includes a drive mechanism 5 and a drive fixing seat 6. The drive mechanism 5 includes a drive motor 51. The bottom of the rake frame 1 is provided with a positioning hole 11. The drive motor 51 is connected to the rake frame 1 through the positioning hole 11. The drive fixing seat 6 is fixedly installed on the bottom of the drive motor 51.

[0022] The positioning hole 11 at the bottom of the rake frame 1 is specifically an arc-shaped structure. Limiting strips are provided on both sides of the bottom of the rake frame 1. Preferably, the spacing between the limiting strips on both sides is adapted to the width of the drive motor 51. The drive mechanism 5 includes the drive motor 51. After the drive motor 51 is installed on the rake frame 1, the limiting strips on both sides can play a certain limiting role for the drive motor 51. The output end of the drive motor 51 can be embedded in the positioning hole 11. The drive fixing seat 6 is fixedly installed on the bottom of the drive motor 51. The drive motor 51 is connected by the cooperation of the rake frame 1 and the drive fixing seat 6, so that a higher power motor can be connected to the rake frame 1, thereby meeting the requirements of special patterns and partial weaving and improving the weaving quality.

[0023] As a further embodiment of this utility model, the driving mechanism 5 also includes a lead screw 52 and a slider 53. The slider 53 is slidably connected inside the rake frame 1, and the lead screw 52 is fixedly installed at the output end of the drive motor 51. The slider 53 and the lead screw 52 are threadedly connected. By driving the motor 51 to keep the lead screw 52 rotating, the slider 53 can be driven to move inside the rake frame 1. Preferably, the bottom of the pull rod 4 abuts against the outer wall of the slider 53. The movement of the slider 53 can push the pull rod 4 to move inside the rake frame 1. It should be noted that the slider 53 pushing the pull rod 4 to move inside the rake frame 1 is prior art, and its specific principle and implementation structure will not be described in detail here.

[0024] As an embodiment of this utility model, it also includes a connecting seat 7. An abutment ear 12 is fixedly provided on the outer wall of one side of the rake frame 1. An abutment groove 71 is provided on the outer wall of the top of the connecting seat 7. The abutment ear 12 is specifically an "L" shaped structure and can be embedded in the abutment groove 71. A connecting hole 72 is provided at the bottom of the connecting seat 7, and a fixing hole 61 is provided on the drive fixing seat 6. Preferably, there are two fixing holes 61, which are symmetrically distributed on the outer wall of the connecting seat 7. During installation, the abutment ear 12 can be embedded into the abutment groove 71 at the top of the connecting seat 7, and then the fixing hole 61 on the drive fixing seat 6 and the connecting hole 72 at the bottom of the connecting seat 7 can be connected to fix the pulling rake to the connecting seat 7. Finally, the connecting seat 7 can be fixed to the crossbeam or the frame of the computer flat knitting machine.

[0025] As a first embodiment of the connector provided by this utility model, such as Figure 1 As shown, there is one connecting seat 7, and several connecting holes 72 are opened on the connecting seat 7. The several connecting holes 72 are arranged in a linear array, so that multiple pulling rakes can be connected to the connecting seat 7. As an embodiment provided by this utility model, the pulling rakes connected to the connecting seat 7 can be four or six in a group. When assembling or replacing the pulling rakes of the flat knitting machine, multiple pulling rakes can be quickly replaced and installed, which can improve the efficiency of assembly or maintenance. A single connecting seat 7 can be connected to the crossbeam of the flat knitting machine for quick assembly.

[0026] As a second embodiment of the connector provided by this utility model, such as Figure 4 As shown, there is one connecting seat 7, and two connecting holes 72 are opened on the connecting seat 7. A pulling rake is connected to the connecting seat 7. When performing maintenance and replacement, a single pulling rake can be replaced.

[0027] As a further embodiment provided by this utility model, such as Figure 5 As shown, it also includes a limiting baffle 8 and a reset device. Slide grooves 13 are respectively provided on the inner walls of opposite sides of the rake frame 1. One end of the slide groove 13 is an open structure. The limiting baffle 8 is slidably connected to the slide groove 13 through the open structure. The reset device is specifically a tension spring. One end of the tension spring is connected to the pull rod 4, and the other end is connected to the limiting baffle 8. The tension spring can drive one end of the pull rod 4 to abut against the slider 53.

[0028] As an embodiment provided by this utility model, such as Figure 5As shown, it also includes a protective cover plate 9. An abutment block 54 is fixedly installed on the outer wall of the top of the slider 53. Limiting blocks 91 are fixedly installed on the protective cover plate 9. Specifically, there are four limiting blocks 91 arranged in a rectangular array on the protective cover plate 9. The protective cover plate 9 can be fixedly installed to the rake frame 1 with screws, so that two of the limiting blocks 91 can abut against the opening structure at one end of the chute 13, thereby sealing one end of the chute 13 and preventing the limiting baffle 8 inside the chute 13 from coming out. The abutment block 54 is fixedly installed on the outer wall of the top of the slider 53. After the protective cover plate 9 is installed inside the rake frame 1, the abutment block 54 abuts against the protective cover plate 9. Preferably, a lead screw nut 55 is fixedly installed on the outer wall of the slider 53. The lead screw nut 55 is threadedly connected to the lead screw 52. The top of the slider 53 abuts against the protective cover plate 9 through the abutment block 54, ensuring that the slider 53 can reciprocate inside the rake frame 1 when the drive motor 51 drives the lead screw 52 to rotate. At the same time, the tension spring drives the pull rod 4 and the limit baffle 8 to move in opposite directions, thus ensuring that when the slider 53 moves towards the pull rod 4, the abutment block 54 on the top of the slider 53 drives the pull rod 4 to move outward. When the slider 53 returns to its original position, the abutment block 54 drives the limit baffle 8 to move inside the slide groove 13, and the tension spring drives the pull rod 4 to return to its original position.

[0029] To facilitate manufacturing, the lead screw nut 55, slider 53, and abutment block 44 can be made into a single unit.

[0030] In this utility model, the drive mechanism 5 is installed outside the rake frame 1 so that the high-power drive motor 51 can be connected to the rake frame 1, thereby providing sufficient traction force to complete the weaving process during the weaving of special patterns and partial weaving. At the same time, since the drive motor 51 has been replaced with a high-power drive motor, the speed of the pulling rake can be increased, thereby improving the working efficiency of the pulling rake during the weaving of special patterns, and improving the efficiency and quality of weaving.

[0031] Working principle:

[0032] The drive motor 51 drives the lead screw 52 to rotate, which drives the slider 53 to move toward the pull rod 4. The abutment block 54 on the slider 53 abuts and drives the pull rod 4 to keep moving, so that the pull hook seat 3 installed on the pull rod 4 drives the pull hook 2 to extend outward, and the pull hook 2 connects with the woven fabric.

[0033] Subsequently, driven by the drive motor 51, the lead screw 52 is driven to rotate in the opposite direction, so as to drive the slider 53 to move toward the drive motor 51. While the slider 53 is moving, it pushes the abutment block 54 to move synchronously, and drives the pull rod 4 to reset through the tension spring connected on the abutment block 54.

[0034] It should be noted that the structure and motion principle of the pull rod 4, the pull hook seat 3, and the pull hook 2 are all existing technologies and will not be described in detail here.

[0035] The tension spring mentioned in this article has an elastic coefficient that meets the technical requirements of this utility model.

[0036] Those skilled in the art will understand that other similar connection methods can also achieve this utility model. For example, welding, bonding, or screwing.

[0037] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An improved structure of a drag rake comprising a rake frame (1), a drag hook (2), a drag hook seat (3) and a drag lever (4), said drag hook (2) being mounted on the drag hook seat (3), said drag hook seat (3) being mounted on the drag lever (4), said drag lever (4) being mounted on the rake frame (1), characterized in that, It also includes driving mechanism (5) and drive fixed base (6), the driving mechanism (5) includes driving motor (51), the harrow frame (1) bottom is provided with positioning hole (11), the driving motor (51) is connected to harrow frame (1) through positioning hole (11), the drive fixed base (6) is fixedly installed on the bottom of driving motor (51).

2. In a drag rake according to claim 1, the improvement wherein, The driving mechanism (5) further includes lead screw (52) and sliding block (53), the driving motor (51) is fixedly installed on one side outer wall of harrow frame (1), the lead screw (52) is fixedly connected to the output end of driving motor (51), the sliding block (53) is slidably connected to the inside of harrow frame (1), and the sliding block (53) is threadedly connected with the lead screw (52).

3. The improvement in a pull drag according to claim 1 wherein, It also includes connecting seat (7), the harrow frame (1) is provided with abutting lug (12), the drive fixed base (6) is provided with fixed hole (61), the connecting seat (7) top is provided with abutting groove (71), the connecting seat (7) bottom is provided with connecting hole (72), the connecting seat (7) top is abutted with abutting lug (12), the connecting seat (7) bottom is connected with fixed hole (61) through connecting hole (72), screw.

4. The improvement in a pull drag according to claim 1 wherein, It also includes limiting baffle (8) and reset device, the harrow frame (1) is provided with sliding slot (13) inside, one end of the sliding slot (13) is open structure, the limiting baffle (8) is embedded in the open structure of one end of sliding slot (13), one end of the reset device is connected with pull rod (4), and the other end is connected with limiting baffle (8).

5. The improvement in a pull drag according to claim 2 wherein, It also includes protective cover plate (9), the protective cover plate (9) is provided with limiting block (91), the sliding block (53) is provided with abutting block (54), the protective cover plate (9) is threadedly connected to harrow frame (1), the limiting block (91) is abutted with limiting baffle (8), and the abutting block (54) is abutted with protective cover plate (9).

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