A chuck pull-out mechanism for a valen box rope threading machine

Abstract

This utility model discloses a card pull-out mechanism for a walnut box threading machine. Key technical features include a frame comprising: a mounting plate, which moves up and down via a lifting mechanism; a pair of pull-out units slidably disposed below the mounting plate; and a rope adjustment mechanism disposed on the mounting plate to drive the pair of pull-out units to move away from or towards each other, thereby achieving rope pulling action and adapting to walnut boxes of different widths. This utility model allows for flexible adjustment of the width of the card pull-out mechanism to accommodate walnut boxes of different specifications.

Description

Technical Field

[0001] This utility model relates to the field of rope threading machine technology, and more specifically to a card pull-out mechanism for a valen box rope threading machine. Background Technology

[0002] A wainscoting box is a type of packaging box used to package various products. To facilitate handling, a drawstring is threaded through the wainscoting box, making it easier to carry. Currently, there are drawstring threading machines on the market that can process paper bags. These machines are equipped with a drawstring threading mechanism for threading the drawstrings onto the paper bags. For example, the drawstring threading machine with a card pull-out device disclosed in publication number CN217968667U, because the paper bags are flexible, even those of different sizes have the same opening width. Therefore, inserting the card pull-out device only requires inserting it into the bag body and then pulling the card out inwards and upwards.

[0003] However, the valence box is made of rigid cardboard material. When the valence box of different sizes is opened, the width distance between the two ends of the valence box is different. The existing card pull-out device is not convenient for adjusting the width and is difficult to adapt to different sizes of valence boxes. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a card pull-out mechanism for a walnut box threading machine, which allows for flexible adjustment of the width of the card pull-out mechanism to adapt to walnut boxes of different specifications.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a card pull-out mechanism for a valence box rope threading machine, comprising a frame, including:

[0006] The mounting plate moves up and down via a lifting mechanism on the frame.

[0007] A pair of pull-out units are slidably positioned below the mounting plate;

[0008] A pull cord adjustment mechanism, mounted on the mounting plate, is used to drive a pair of pull-out units to move away from or closer to each other, thereby enabling the pull cord action and adapting to varnish boxes of different widths.

[0009] The present invention is further configured such that the pull rope adjusting mechanism includes:

[0010] The ball screw is rotatably mounted on the mounting plate, and the screw threads at both ends rotate in opposite directions.

[0011] There are two lead screw nuts, which are respectively connected to the two ends of the ball screw with opposite directions of rotation;

[0012] The first servo motor, mounted on the mounting plate, is used to drive the ball screw to rotate.

[0013] The present invention is further configured such that: a through hole is provided on the mounting plate corresponding to the position of the lead screw nut, and a connector is provided on the pull-out unit, the connector passing through the through hole and connecting to the lead screw nut.

[0014] The present invention is further configured such that each of the pull-out units includes:

[0015] The clamping device has two clamps for inserting into the valen box to hold the rope.

[0016] The hole spacing adjustment mechanism is used to adjust the distance between the two clamping parts to accommodate waler boxes with different hole spacings.

[0017] The substrate is used to support the hole spacing adjustment mechanism and the clamping components.

[0018] The present invention is further configured such that the hole spacing adjustment mechanism includes:

[0019] The adjusting screw is rotatably connected to the base plate, and the threads at both ends turn in opposite directions;

[0020] The connecting seat has two parts, which are respectively connected to the two ends of the adjusting screw with opposite rotation directions, and the clamping member is fixedly connected to the connecting seat;

[0021] The second servo motor is used to drive the adjustment screw to rotate.

[0022] The present invention is further configured such that: the bottom of the clamping member is provided with a finger-clamping cylinder for clamping the rope clip.

[0023] The present invention is further configured such that the lifting mechanism includes:

[0024] The lifting platform is slidably connected to the frame, and the mounting plate is connected to the bottom of the lifting platform;

[0025] A rack is fixedly mounted on the lifting plate along the lifting direction;

[0026] The third servo motor has a gear connected to its output end, and the gear meshes with the rack.

[0027] In summary, this utility model has the following beneficial effects:

[0028] Compared with the prior art, this utility model is equipped with a pull rope adjustment mechanism. Firstly, it can adjust the width spacing of a pair of pull-out units, so that the pull-out units can better adapt to different specifications of valence boxes and meet the processing needs of valence boxes. Secondly, the pull rope adjustment mechanism can also be used to perform the action of pulling the chuck head into the valence box after clamping it, without the need for additional cylinders or other components to pull the chuck head inward, thus simplifying the overall structure. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of the card ejection mechanism.

[0030] Figure 2 This is a schematic diagram of the rope adjustment mechanism.

[0031] Figure 3 This is a schematic diagram of the hole spacing adjustment mechanism.

[0032] Figure 4 This is a schematic diagram of the lifting mechanism.

[0033] Figure 5 This is a schematic diagram of the cross-sectional structure when the clip is pulled out.

[0034] Figure 6 This is a schematic diagram of the Warren box structure.

[0035] Reference numerals: 1. Frame; 2. Mounting plate; 201. Through hole; 3. Lifting mechanism; 301. Lifting plate; 302. Rack; 303. Third servo motor; 304. Gear; 4. Pull-out unit; 401. Clamping component; 4011. Finger clamping cylinder; 402. Hole spacing adjustment mechanism; 4021. Adjusting screw; 4022. Connecting seat; 4023. Second servo motor; 403. Base plate; 5. Pull rope adjustment mechanism; 501. Ball screw; 502. Screw nut; 503. First servo motor; 6. Connecting component; 7. Valen box; 8. Rope; 801. Clip. Detailed Implementation

[0036] The present invention will be further described in detail below with reference to the accompanying drawings.

[0037] This embodiment discloses a chuck extraction mechanism for a valence box rope threading machine. For ease of understanding, the various directions of the valence box are first defined, referring to... Figure 6 The structure of the Valen box 7 is shown, wherein the distance between the two end faces with the rope holes is in the width direction, the vertical direction is in the height direction, and the distance between the two rope holes is in the hole spacing direction. The above definitions are only for the convenience of understanding this mechanism. Returning to this embodiment, as... Figure 1-5 As shown, including rack 1, it also includes:

[0038] The mounting plate 2 moves up and down via the lifting mechanism 3 set on the frame 1.

[0039] A pair of pull-out units 4 are slidably positioned below the mounting plate 2;

[0040] The pull rope adjustment mechanism 5 is mounted on the mounting plate 2 and is used to drive a pair of pull-out units 4 to move away from or closer to each other, so as to realize the pull rope action and adapt to the waler box of different widths.

[0041] Through the above structure, the pull cord adjustment mechanism 5 can drive the pull-out unit 4 to move in the width direction of the walnut box, and the lifting mechanism 3 can drive the mounting plate 2 and the pull-out unit 4 below to move up and down as a whole. The pull cord adjustment mechanism 5 has two functions. First, the pull cord adjustment mechanism 5 adjusts the relative position of a pair of pull-out units 4 in the width direction to adapt to the width of walnut boxes of different specifications. Second, when the pull cord adjustment mechanism 5 is performing the jack pull-out operation, it can also bring the pair of pull-out units 4 closer to each other by a small distance, so as to pull the jack into the walnut box and ensure that the jack is completely inserted into the walnut box. In this way, there is no need to set up a separate component to pull the jack inward, which simplifies the overall mechanism.

[0042] Furthermore, refer to Figure 2 The five pull rope adjustment mechanisms in this embodiment include:

[0043] The ball screw 501 is rotatably mounted on the mounting plate 2, and the screw threads at both ends rotate in opposite directions; it can be composed of two screws connected in the middle by a coupling or other means, thus forming a ball screw 501 with opposite rotation directions at both ends.

[0044] There are two lead screw nuts 502, which are respectively connected to the two ends of the ball screw 501 with opposite directions of rotation.

[0045] The first servo motor 503 is mounted on the mounting plate 2 and is used to drive the ball screw 501 to rotate.

[0046] Therefore, by setting ball screws 501 with opposite rotation directions at both ends, the screw nuts 502 at both ends will move closer or further apart when the ball screws 501 rotate. At the same time, since the pull rope adjustment mechanism 5 is used not only for width adjustment but also for pulling the chuck inward, the rotation of the ball screw 501 and the axial movement of the screw nut 502 are very frequent. Therefore, a ball screw kinematic pair with very low friction is used for driving to ensure the reliable use of the mechanism for a long time.

[0047] Furthermore, a through hole 201 is provided on the mounting plate 2 at the position corresponding to the lead screw nut 502, and a connector 6 is provided on the pull-out unit 4. The connector 6 passes through the through hole 201 and is connected to the lead screw nut 502. Specifically, a protruding stepped structure is provided on the lead screw nut 502, and the connector 6 is connected to the protruding stepped structure by bolts or the like, thereby realizing the synchronous movement of the pull-out unit 4 and the lead screw nut 502.

[0048] Furthermore, refer to Figure 3 Each pull-out unit 4 includes:

[0049] Clamping member 401, provided in two parts, is used to insert into the valen box to clamp the rope;

[0050] The hole spacing adjustment mechanism 402 is used to adjust the distance between the two clamping members 401 to adapt to walnut boxes with different hole spacings.

[0051] The substrate 403 is used to support the hole spacing adjustment mechanism 402 and the clamping member 401.

[0052] With the above structure, each pull-out unit 4 corresponds to two rope holes on one side of the walnut box, and each of the two clamping members 401 corresponds to one rope hole. The hole spacing adjustment mechanism 402 is used to adjust different hole spacings when dealing with walnut boxes of different specifications.

[0053] Furthermore, the specific hole spacing adjustment mechanism 402 includes:

[0054] The adjusting screw 4021 is rotatably connected to the base plate 403, and the threads at both ends are in opposite directions;

[0055] There are two connecting seats 4022, which are respectively connected to the two ends of the adjusting screw 4021 with opposite rotation directions. The clamping member 401 is fixedly connected to the connecting seat 4022.

[0056] The second servo motor 4023 is used to drive the adjusting screw 4021 to rotate.

[0057] Since the hole spacing adjustment mechanism 402 is only used to adjust the hole spacing when changing to different sizes of valence boxes, a regular lead screw can be selected. Its principle is similar to that of the pull rope adjustment mechanism. Both are achieved by rotating the lead screws with opposite directions at both ends, so that the connecting seats 4022 on the lead screws move closer or further apart, thereby adjusting the hole spacing.

[0058] Furthermore, a finger-gripping cylinder 4011 for gripping the rope clip head is provided at the bottom of the clamping member 401. The finger-gripping cylinder 4011 is connected to an external air source to achieve clamping of the clip head.

[0059] Furthermore, refer to Figure 4 The lifting mechanism 3 includes:

[0060] The lifting plate 301 is slidably connected to the slider rail component of the frame 1, and the mounting plate 2 is connected to the bottom of the lifting plate 301;

[0061] The rack 302 is fixedly mounted on the lifting plate 301 along the lifting direction;

[0062] The third servo motor 303 has a gear 304 connected to its output end, and the gear 304 meshes with the rack 302.

[0063] Since there are many components mounted on the mounting plate 2, its weight is relatively large. Preferably, the output end of the third servo motor 303 can be connected to a reducer, and then the reducer is connected to a gear 304. By reducing the speed, the torque is increased, thereby increasing the lifting power. During lifting, the gear 304 rotates, driving the rack 302 and the lifting plate 3 to move up and down, thereby realizing the overall lifting of the mounting plate 2 below.

[0064] For the specific working principle of this utility model, please refer to [link / reference]. Figure 5 Below the mechanism is an open valence box 7. The valence box has rope holes on both sides. The rope 8 with the clip 801 is inserted into the valence box from both sides. Then, the lifting mechanism 3 drives the clamping part 401 of the extraction unit 4 to extend into the valence box 7. The finger-clamping cylinder 4011 clamps the clip 801. Then, the rope adjustment mechanism 5 drives the pair of extraction units 4 to move closer to each other, completely pulling the clip 801 into the interior of the valence box 7. At the same time, the lifting mechanism 3 rises a certain distance to ensure that the clip 801 and the rope 8 are both inside the valence box 7. Then, the finger-clamping cylinder 4011 releases the clip, completing the clip extraction action of one valence box.

[0065] Furthermore, to facilitate plate changing (which refers to replacing the walnut box with a different specification for processing), the first, second, and third servo motors can all be electrically connected to a control unit. The width of the walnut box, the hole spacing, and the required lifting height can be manually input into the control unit, and then the mechanism will automatically adjust to achieve automatic plate changing, making it more convenient to use.

[0066] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the design concept of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A jaw puller mechanism for a Warren box rope pulling machine comprising a frame (1) characterised in that: include: The mounting plate (2) moves up and down through the lifting mechanism (3) set on the frame (1); A pair of pull-out units (4) are slidably disposed below the mounting plate (2); A pull cord adjustment mechanism (5) is set on the mounting plate (2) and is used to drive a pair of pull-out units (4) to move away from or closer to each other in order to realize the pull cord action and adapt to waler boxes of different widths.

2. A mechanism for extracting the jaw of a Warren box stringing machine according to claim 1, characterized in that: The pull rope adjustment mechanism (5) includes: A ball screw (501) is rotatably mounted on a mounting plate (2), and the screw threads at both ends are rotated in opposite directions; two screw nuts (502) are provided, and the two screw nuts (502) are respectively connected to the two ends of the ball screw (501) with opposite rotation directions; The first servo motor (503) is mounted on the mounting plate (2) and is used to drive the ball screw (501) to rotate.

3. A mechanism for extracting a jaw of a Warren box stringing machine according to claim 2, characterized in that: The mounting plate (2) is provided with a through hole (201) at the position corresponding to the lead screw nut (502), and the pull-out unit (4) is provided with a connector (6), which passes through the through hole (201) and is connected to the lead screw nut (502).

4. A mechanism for extracting the jaw of a Warren box stringing machine according to claim 1, characterized in that: Each of the pull-out units (4) includes: The clamping element (401) has two clamps for inserting into the valen box to clamp the rope; A hole spacing adjustment mechanism (402) is used to adjust the distance between the two clamping parts (401) to accommodate walnut boxes with different hole spacings. The substrate (403) is used to support the hole spacing adjustment mechanism (402) and the clamping member (401).

5. A mechanism for extracting a jaw of a Warren box stringing machine according to claim 4, characterized in that: The aperture adjustment mechanism (402) includes: The adjusting screw (4021) is rotatably connected to the base plate (403), and the threads at both ends are in opposite directions; Connecting seats (4022) are provided in two and are respectively connected to the two ends of the adjusting screw (4021) with opposite rotation directions. The clamping member (401) is fixedly connected to the connecting seats (4022). The second servo motor (4023) is used to drive the adjustment screw (4021) to rotate.

6. A mechanism for extracting a jaw of a Warren box stringing machine according to claim 1, characterized in that: The bottom of the clamping member (401) is provided with a finger-clamping cylinder (4011) for clamping the rope clip.

7. The chuck extraction mechanism of a valen box rope threading machine according to claim 1, characterized in that: The lifting mechanism (3) includes: The lifting plate (301) is slidably connected to the frame (1), and the mounting plate (2) is connected to the bottom of the lifting plate (301); A rack (302) is fixedly mounted on the lifting plate (301) along the lifting direction; The third servo motor (303) has a gear (304) connected to its output end, and the gear (304) meshes with the rack (302).

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