Cap adding / removing device

Abstract

The application relates to a cover adding and removing device, which comprises a rack, a working position arranged on the rack and used for carrying a material box, a rotating support rotatably arranged on the rack and intersecting with a bearing plane of the working position along a rotation axis of the rotating support, an adjusting frame arranged on the rotating support and located on a side of the rotating support facing the working position, the adjusting frame being used for rotating the rotating support in the case of abutting against a side wall of the material box, and a clamping jaw arranged on the adjusting frame and movably connected with the adjusting frame along the rotation axis, the clamping jaw being used for cooperating with a side of a cover of the material box facing the working position. The cover adding and removing device can adaptively adjust the deflection of the clamping structure according to the stop position of the tobacco box, can ensure that the cover and the box body are accurately aligned, and improves the efficiency of removing and adding the cover of the tobacco box.

Description

Technical Field

[0001] This application relates to the field of tobacco equipment technology, and in particular to a cap-adding / removing device. Background Technology

[0002] In the tobacco processing technology of a tobacco factory, the lid of the tobacco box usually needs to be removed, tobacco is loaded into the tobacco box, and then the lid is closed; that is, the tobacco box has the need for both adding and removing the lid. Usually, a clamping structure is used to clamp the lid of the tobacco box, which is stopped at a preset position, thereby removing the lid from the box or closing the lid on the box.

[0003] However, the stopping position of the tobacco box usually has a certain deviation, and the clamping structure in related technologies is difficult to adapt to the deviation of the stopping position of the tobacco box, resulting in low efficiency in removing and putting on the lid. Utility Model Content

[0004] Based on this, this application provides a device for adding or removing a lid, which can adaptively adjust the deflection of the clamping structure according to the stopping position of the tobacco box, ensuring accurate alignment between the lid and the box, and improving the efficiency of removing and adding lids to the tobacco box.

[0005] This application provides a cap-adding / removing device, including:

[0006] The frame has a working position for holding the material box.

[0007] A rotating support is rotatably mounted on the frame, and the axis of rotation of the rotating support relative to the frame intersects with the bearing plane of the working position.

[0008] The adjustment frame is mounted on the rotating support and is located on the side of the rotating support facing the working position. The adjustment frame is used to drive the rotating support to rotate when it is in contact with the side wall of the material box.

[0009] The gripper is located on the adjustment frame and is movably connected to the adjustment frame along the rotation axis. The gripper is used to engage with the side of the material box cover facing the working position.

[0010] In one implementation, the rotating support includes:

[0011] The first support, along the first direction, is located on one side of the rotation axis;

[0012] The second support is located on the other side of the rotation axis along the first direction;

[0013] The adjustment frame includes:

[0014] The first adjusting arm is connected to the first bracket and is located on the side of the first bracket facing the working position.

[0015] The second adjusting arm is connected to the second bracket and is located on the side of the second bracket facing the working position. Along the first direction, the first adjusting arm and the second adjusting arm are opposite each other.

[0016] In one implementation, the first adjusting arm is provided with a first abutment, which is located on the side of the first adjusting arm facing the second adjusting arm; the first abutment is movably connected to the first adjusting arm along a first direction.

[0017] The second adjusting arm is provided with a second abutment, which is located on the side of the second adjusting arm facing the first adjusting arm; along the first direction, the second abutment is movably connected to the second adjusting arm.

[0018] In one implementation, either the first abutment or the second abutment extends along a second direction, which intersects with the first direction;

[0019] The first abutment is provided with first rollers at both ends along the second direction. The first rollers are rotatably connected to the first abutment, and the rotation axis of the first rollers intersects the first direction and the second direction.

[0020] The second abutment is provided with second rollers at both ends along the second direction. The second rollers are rotatably connected to the second abutment, and the rotation axis of the second rollers intersects with the first direction and the second direction.

[0021] In one implementation, the first adjusting arm is provided with a first driving component, which is connected to a first abutting member. The first driving component is used to drive the first abutting member to move along a first direction.

[0022] The second adjusting arm is provided with a second driving component, which is connected to the second abutment. The second driving component is used to drive the second abutment to move along the first direction.

[0023] In one implementation, the cap-adding / removing device further includes:

[0024] The first reset component has one end connected to the frame and the other end connected to the first bracket.

[0025] The second reset component is arranged opposite to the first reset component along the first direction. One end of the second reset component is connected to the frame, and the other end of the second reset component is connected to the second bracket.

[0026] In one implementation, the frame is provided with a first limiting member and a second limiting member, the first limiting member being located on one side of the rotation axis, and the second limiting member being located opposite the first limiting member on the other side of the rotation axis.

[0027] The first bracket is provided with a third limiting member, and the second bracket is provided with a fourth limiting member. The first limiting member is located on the rotation path of the third limiting member, and the second limiting member is located on the rotation path of the fourth limiting member.

[0028] In one implementation, there are two first limiting members, located on both sides of the rotation axis along the second direction; there are also two second limiting members, located on both sides of the rotation axis along the second direction.

[0029] In one implementation, the first bracket is provided with a first slide rail, and the first adjusting arm is slidably connected to the first slide rail; the second bracket is provided with a second slide rail, and the second adjusting arm is slidably connected to the second slide rail.

[0030] The frame is provided with a first elastic blocking member, which is located between the first adjusting arm and the second adjusting arm, and the first elastic blocking member is located on the sliding path of the first adjusting arm and the second adjusting arm relative to the rotating support.

[0031] The frame is also provided with a second elastic blocking member and a third elastic blocking member. The second elastic blocking member is located on the side of the first support away from the second support and is located on the sliding path of the first adjusting arm. The third elastic blocking member is located on the side of the second support away from the first support and is located on the sliding path of the second adjusting arm.

[0032] In one implementation, the gripper includes:

[0033] The first clamping component is disposed on the first adjusting arm;

[0034] The second clamping component is disposed on the second adjusting arm opposite to the first clamping component;

[0035] Either the first clamping component or the second clamping component includes a fixed clamping plate and a movable clamping plate. The fixed clamping plate is fixedly connected to either the first adjusting arm or the second adjusting arm, and the movable clamping plate is movably connected to either the first adjusting arm or the second adjusting arm. The movable clamping plate is located on the side of the fixed clamping plate facing the working position. The movable clamping plate and the fixed clamping plate are used to clamp the edge of the cover of the material box.

[0036] The cap-adding / removing device provided in this application embodiment has a working position set on the frame, which can be connected to the tobacco production line to facilitate the support and bearing of the material box. A rotating bracket is set on the frame, which is rotatably mounted on the frame, and the rotation axis of the rotating bracket relative to the frame intersects with the bearing surface of the working position. An adjusting frame is set on the rotating bracket, which is located on the side of the rotating bracket facing the working position. The adjusting frame is used to drive the rotating bracket to rotate when it abuts against the material box. Thus, when the material box moves from the production line to the working position and the position of the material box is offset to a certain extent, the adjusting frame abuts against the side wall of the material box and drives the rotating frame to rotate, thereby causing the gripper set on the adjusting frame to rotate to the same offset state as the position of the material box. This allows the gripper to move along the rotation axis on the adjusting frame, thereby cooperating with the side of the material box facing the working position and removing the cover from the box, or closing the cover onto the box. It can adaptively adjust the deflection of the clamping structure according to the stopping position of the tobacco box, ensuring accurate alignment between the lid and the box, and improving the efficiency of removing and adding lids to the tobacco box. Attached Figure Description

[0037] Figure 1 This is a three-dimensional structural schematic diagram of the cap-adding / removing device provided in some embodiments of this application.

[0038] Figure 2 This is a front view of a cap-adding / removing device provided in some embodiments of this application.

[0039] Figure 3 This is a top view of the cap-adding / removing device provided in some embodiments of this application.

[0040] Explanation of reference numerals in the attached figures:

[0041] 10-Frame; 20-Rotating support; 30-Adjusting frame; 40-Gripper; 50-Bag; 60-First reset component; 70-Second reset component;

[0042] 11-Working position; 12-First limiting member; 13-Second limiting member; 14-First elastic blocking member; 15-Third elastic blocking member; 16-Third driving component; 21-Rotation axis; 22-Rotation servo; 23-First bracket; 24-Second bracket; 31-First adjusting arm; 32-Second adjusting arm; 41-First clamping component; 42-Second clamping component; 51-Cover; 52-Box;

[0043] 121-Groove; 231-Third limiting member; 232-First slide rail; 241-Fourth limiting member; 242-Second slide rail; 301-Guide post; 302-Guide hole; 303-Crossbeam; 304-Slider; 311-First abutment; 312-First driving component; 321-Second abutment; 322-Second driving component; 401-Fourth driving component; 411-Fixed clamping plate; 412-Modible clamping plate;

[0044] 2311 - Third roller; 3111 - First roller; 3211 - Second roller. Detailed Implementation

[0045] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0046] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0047] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0048] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0049] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0050] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0051] Figure 1 This is a three-dimensional structural schematic diagram of the cap-adding / removing device provided in some embodiments of this application.

[0052] In response to the technical problems existing in the relevant technologies, refer to Figure 1 As shown, in some examples of embodiments of this application, a cap-adding / removing device is provided. The cap-adding / removing device may include a frame 10.

[0053] In some examples, the frame 10 can be formed by splicing together square steel, angle steel, or I-beams. The frame 10 can be positioned above the tobacco production line and connected to it.

[0054] In some examples, frame 10 may have a work station 11. Work station 11 may be connected to a tobacco production line. Work station 11 may be used to hold material bin 50.

[0055] In some examples, the cap-adding / removing device may include a rotating support 20. The rotating support 20 may be rotatably mounted on the frame 10.

[0056] In some examples, rack 10 may include a gantry. Rotary support 20 may be rotatably mounted on beam 303 of rack 10. Rotary support 20 may be located above work station 11.

[0057] In some examples, the rotating bracket 20 can be rotatably connected to the frame 10 via bearings. This reduces the friction between the rotating bracket 20 and the frame 10, facilitating the rotation of the self-propelled vehicle relative to the frame 10.

[0058] In some examples, refer to Figure 1 As shown, a rotary servo motor 22 may be provided on the frame 10. The rotary support 20 can be rotatably connected to the frame 10 via the rotary servo motor 22.

[0059] In some examples, refer to Figure 1 As shown, the rotation axis 21 of the rotating bracket 20 relative to the frame 10 can intersect with the bearing surface of the working position 11.

[0060] In some examples, the rotation axis 21 of the rotating support 20 relative to the frame 10 may be perpendicular or approximately perpendicular to the bearing surface of the work station 11.

[0061] In some examples, refer to Figure 1 As shown, the cap removal device may include an adjustment bracket 30. The adjustment bracket 30 may be disposed on the rotating support 20.

[0062] In some examples, the adjustment bracket 30 may be located on the side of the rotating bracket 20 facing the working position 11.

[0063] In some examples, the adjustment bracket 30 may extend toward the work station 11.

[0064] Figure 2 This is a front view of a cap-adding / removing device provided in some embodiments of this application.

[0065] In some examples, refer to Figure 2 As shown, the adjustment frame 30 can be used to drive the rotating support 20 to rotate when it is in contact with the side wall of the material box 50.

[0066] In other words, in some examples of the embodiments of this application, the feed hopper 50 can enter the working station 11 through the tobacco production and processing line. After the feed hopper 50 enters the working station 11, its position and placement may rotate and shift to some extent. In the embodiments of this application, after the feed hopper 50 enters the working station 11, the adjusting frame 30 can move along... Figure 2The movement is indicated by the middle arrow b. Because the position of the hopper 50 may shift and rotate, a portion of the adjusting frame 30 will first contact the hopper 50.

[0067] In some examples, after a portion of the adjusting frame 30 contacts the hopper 50, the adjusting frame 30 is subjected to a force from the hopper 50, locking the adjusting frame 30 from further movement. The force exerted by the hopper 50 on the adjusting frame 30 causes the adjusting frame 30 to rotate in the direction in which the hopper 50 deflects (e.g., along the direction of the hopper 50). Figure 2 (Rotation in the direction indicated by arrows a-a1) locks the rotation of the adjusting frame 30, allowing the adjusting frame 30 to fit entirely against the side wall of the material box 50. This enables the adjusting frame 30 to adapt to the deflection angle of the material box 50. The rotation of the adjusting frame 30 can drive the rotating bracket 20 to rotate relative to the frame 10 around its rotation axis.

[0068] In some examples, refer to Figure 1 and Figure 2 As shown, the cap removal device may include a gripper 40. The gripper 40 may be disposed on the adjusting frame 30. Thus, when the adjusting frame 30 rotates to adapt to the deflection angle of the material box 50, the adjusting frame 30 can drive the gripper 40 to rotate together, so that the gripper 40 can rotate according to the rotation angle of the adjusting frame 30, and the gripper 40 can adapt to the deflection angle of the material box 50.

[0069] In some examples, the gripper 40 can be movably connected to the adjustment frame 30 along the axis of rotation 21. The gripper 40 can be used to engage with the side of the cover 51 of the hopper 50 facing the work position 11.

[0070] For example, refer to Figure 2 As shown, when the adjusting frame rotates to adapt to the deflection angle of the material box 50 until the adjusting frame is in contact with the side wall of the material box 50, the gripper 40 can move along... Figure 2 The gripper moves in the direction indicated by the y-axis, and the gripper 40 abuts against the edge of the cover 51, thereby removing the cover 51 from the box 52.

[0071] In some examples, after tobacco is loaded into the housing 52, the grippers 40 can move along... Figure 2The adjustment frame 30 moves in the direction indicated by the negative y-axis, thereby placing the cover 51 onto the box 52. Since the adjustment frame 30 rotates to adapt to the deflection angle of the material box 50, the rotation angle of the gripper 40 is the same as the deflection angle of the material box 50, which can ensure accurate alignment of the cover 51 and the box 52, making it easier to place the cover 51 onto the box 52. This improves the efficiency of placing the cover 51 on the material box 50 and the efficiency of removing and adding covers to the tobacco box. The capping and decapping device provided in this application embodiment has a working position 11 on the frame 10, which can be connected to the tobacco production line to facilitate the support and bearing of the material box 50. A rotating bracket 20 is provided on the frame 10, rotatably mounted thereon, with its rotation axis 21 relative to the frame 10 intersecting the bearing surface of the working position 11. An adjusting frame 30 is provided on the rotating bracket 20, located on the side facing the working position 11. The adjusting frame 30 is used to drive the material box 50 when it comes into contact with the material box 50. The rotating bracket 20 rotates; thus, when the material box 50 moves from the production line to the working position 11, and the position of the material box 50 is slightly offset, the adjusting frame 30, after abutting against the side wall of the material box 50, can drive the rotating frame to rotate, thereby causing the gripper 40 set on the adjusting frame 30 to rotate. This allows the gripper 40 to rotate to the same offset state as the material box 50, facilitating the movement of the gripper 40 along the rotation axis 21 on the adjusting frame 30. This allows it to engage with the side of the material box 50 whose cover 51 faces the working position 11, removing the cover 51 from the box body 52, or closing the cover 51 onto the box body 52. ​​The ability to adaptively adjust the deflection of the clamping structure according to the stopping position of the tobacco box ensures accurate alignment between the cover 51 and the box body 52, improving the efficiency of removing and adding covers to the tobacco box.

[0072] In some examples, refer to Figure 1 As shown, the rotating bracket 20 may include a first bracket 23.

[0073] In some examples, along the first direction (e.g.) Figure 1 (in the direction shown by the y-axis), the first bracket 23 can be located on one side of the rotation axis 21.

[0074] In some examples, the rotating support 20 may include a second support 24. The second support 24 may be located on the opposite side of the rotation axis 21, opposite to the first support 23.

[0075] In some examples, refer to Figure 1 As shown, the adjustment frame 30 may include a first adjustment arm 31. The first adjustment arm 31 may be connected to the first bracket 23.

[0076] In some examples, the first adjusting arm 31 may be located on the side of the first support 23 facing the working position 11. The first adjusting arm 31 may be used to abut against one side wall of the hopper 50, thereby adaptively rotating according to the deflection angle of the hopper 50 under the force of the hopper 50.

[0077] In some examples, refer to Figure 1 As shown, the adjustment bracket 30 may include a second adjustment arm 32. The second adjustment arm 32 may be connected to the second bracket 24.

[0078] In some examples, the second adjustment arm 32 may be located on the side of the second bracket 24 facing the working position 11.

[0079] In some examples, along the first direction, the second adjusting arm 32 may be positioned opposite the first adjusting arm 31. The second adjusting arm 32 may be used to abut against another side wall of the hopper 50.

[0080] In some examples, when the hopper 50 enters the working position 11, the hopper 50 may be located between the first adjusting arm 31 and the second adjusting arm 32.

[0081] In some examples, the second adjusting arm 32 can abut against another side wall of the hopper 50 and rotate to fit against the side wall of the hopper 50 according to the deflection angle of the hopper 50, thereby driving the gripper 40 to rotate to the same deflection angle as the hopper 50, which facilitates the docking of the gripper 40 with the cover 51 of the hopper 50 and improves the adaptability of the gripper 40 to different deflection positions of the hopper 50.

[0082] In some examples of embodiments of this application, a first support 23 is provided on one side of the rotation axis 21 along a first direction, and a first adjusting arm 31 is provided on the first support 23; and a second support 24 is provided on the other side of the rotation axis 21 opposite to the first support 23, and a second adjusting arm 32 is provided on the second support 24. In this way, the first adjusting arm 31 and the second adjusting arm 32 can contact the two opposite side walls of the material box 50, thereby applying rotational force to the first adjusting arm 31 and the second adjusting arm 32 respectively using the two opposite side walls of the material box 50, driving the adjusting frame 30, the gripper 40 and the rotating support 20 to rotate, which can improve the stability of the rotation of the adjusting frame 30 and the gripper 40, improve the accuracy of the adaptation of the gripper 40 and the deflection angle of the material box 50, facilitate the accurate alignment of the cover 51 and the box 52, and improve the efficiency of removing and adding the cover of the tobacco box.

[0083] In some examples, refer to Figure 1 and Figure 2 As shown, the first adjusting arm 31 may be provided with a first abutment 311. The first abutment 311 may be located on the side of the first adjusting arm 31 facing the second adjusting arm 32.

[0084] In some examples, along the first direction (e.g.) Figure 1 (in the direction shown by the y-axis), the first abutment 311 can be movably connected to the first adjusting arm 31. That is, in this embodiment, the first abutment 311 can move relative to the first adjusting arm 31 along a first direction.

[0085] In some examples, when the hopper 50 enters the working position 11, the first abutment 311 can move relative to the first adjusting arm 31 toward the hopper 50 in a first direction, thereby making the first abutment 311 contact the side wall of the hopper 50. After the first abutment 311 contacts the side wall of the hopper 50, as the first abutment 311 continues to move, the side wall of the hopper 50 applies a reverse force to the first abutment 311, and the first abutment 311 deflects toward the side wall of the hopper 50 in a direction relative to the first abutment 311, thereby causing the first adjusting arm 31 and the gripper 40 disposed on the first adjusting arm 31 to rotate about the rotation axis 21.

[0086] In some examples, refer to Figure 1 and Figure 2 As shown, the second adjusting arm 32 may be provided with a second abutment 321. The second abutment 321 may be located on the side of the second adjusting arm 32 facing the first adjusting arm 31.

[0087] In some examples, the second abutment 321 may be positioned opposite the first abutment 311.

[0088] In some examples, along the first direction, the second abutment 321 may be movably connected to the second adjusting arm 32.

[0089] It is understood that in some examples of the embodiments of this application, the connection method between the second abutment 321 and the second adjusting arm 32 may be the same as, similar to or similar to the connection method between the first abutment 311 and the first adjusting arm 31 in the foregoing embodiments of this application. For details, please refer to the detailed description of the connection method between the first abutment 311 and the first adjusting arm 31 in the foregoing embodiments of this application. This application will not repeat the description in this regard.

[0090] In some examples of embodiments of this application, a first abutment 311 is provided on the first adjusting arm 31, the first abutment 311 is located on the side of the first adjusting arm 31 facing the second adjusting arm 32, and the first abutment 311 is configured to be movably connected to the first adjusting arm 31 along a first direction; in addition, a second abutment 321 is provided on the second adjusting arm 32, the second abutment 321 is located on the side of the second adjusting arm 32 facing the first adjusting arm 31, and the second abutment 321 is configured to be movably connected to the second adjusting arm 32 along a first direction; in this way, the distance between the first adjusting arm 31 and the second adjusting arm 32 and the material box 50 that can be abutted can be extended by the first abutment 311 and the second abutment 321, thereby increasing the size range of the material box 50 that the adjusting frame 30 can adapt to, and facilitating the removal or addition of lids to material boxes 50 of different sizes.

[0091] In some examples, refer to Figure 1 As stated, either the first abutment 311 or the second abutment 321 can move along the second direction (e.g., Figure 1 (Extended in the direction shown by the x-axis). That is, the dimension of either the first abutment 311 or the second abutment 321 along the second direction can be greater than the dimension along the first direction.

[0092] In some examples, the first abutment 311 may extend along the second direction.

[0093] In some examples, the second abutment 321 may extend along the second direction.

[0094] In some examples, refer to Figure 1 As shown, the first abutment 311 may be provided with first rollers 3111 at both ends along the second direction. The first rollers 3111 can be rotatably connected to the first abutment 311.

[0095] In some examples, the axis of rotation of the first roller 3111 may intersect with the first direction.

[0096] In some examples, the axis of rotation of the first roller 3111 may intersect with the second direction.

[0097] In some examples, the axis of rotation of the first roller 3111 may be parallel or approximately parallel to the axis of rotation 21.

[0098] In some examples, the peripheral wall of the first roller 3111 can abut against the side wall of the hopper 50. That is, the first abutment 311 can abut against the side wall of the hopper 50 through the peripheral wall of the first roller 3111.

[0099] In some examples of embodiments of this application, a first roller 3111 is provided on the first abutment member 311. A first roller 3111 is provided at each of the two ends of the first abutment member 311 along the second direction. Thus, when the first abutment member 311 moves toward the hopper 50, the first roller 3111 at the end of the first abutment member 311 first abuts against the side wall of the hopper 50. As the first abutment member 311 continues to move toward the hopper 50, it rotates relative to the side wall of the hopper 50 using one of the first rollers 3111 abutting against the side wall of the hopper 50 as a pivot point, until the other first roller 3111 contacts the side wall of the hopper 50. This facilitates the rotation of the first abutment member 311 relative to the side wall of the hopper 50 and adapts to the deflection angle of the hopper 50, reducing the concentrated stress between the first abutment member 311 and the hopper 50, and thus protecting the hopper 50.

[0100] In some examples, refer to Figure 1 As shown, the second abutment 321 may be provided with second rollers 3211 at both ends along the second direction. The second rollers 3211 can be rotatably connected to the second abutment 321. The rotation axis of the second rollers 3211 can intersect with the first direction. The rotation axis of the second rollers 3211 can intersect with the second direction.

[0101] It is understood that in some examples of the embodiments of this application, the setting of the second roller 3211 may be the same as, similar to or similar to that of the first roller 3111. For details, please refer to the detailed description of the first roller 3111 in the foregoing embodiments of this application. This application will not repeat the description in this embodiment.

[0102] In some examples, refer to Figure 1 As shown, the first adjusting arm 31 may be provided with a first driving component 312. The first driving component 312 may be connected to the first abutment 311.

[0103] In some examples, the power output end of the first drive component 312 can be connected to the first abutment 311. The first drive component 312 can be used to drive the first abutment 311 to move along a first direction.

[0104] In some examples, the first drive component 312 may include a linear drive component.

[0105] In some examples, the first drive component 312 may include any one of a cylinder, a linear motor, or a piston cylinder.

[0106] In some examples, refer to Figure 1As shown, a guide post 301 may be provided on the first abutment member 311. A guide hole 302 may be provided on the first adjusting arm 31. The guide post 301 may be inserted into the guide hole 302. The guide post 301 may extend along a first direction. Thus, when the first driving member 312 drives the first abutment member 311 along the first direction, the guide post 301 may move along the first direction within the guide hole 302, thereby guiding the movement of the first abutment member 311 and improving the stability of the first abutment member 311 moving along the first direction.

[0107] In some examples, two guide posts 301 may be provided. Along the second direction, the two guide posts 301 may be positioned opposite each other on both sides of the first drive member 312. This can improve the stability of the movement of the first abutment member 311.

[0108] In some examples, refer to Figure 1 and Figure 2 As shown, the second adjusting arm 32 may be provided with a second driving component 322. The second driving component 322 may be connected to the second abutment 321. The second driving component 322 may be used to drive the second abutment 321 to move along a first direction.

[0109] It is understood that in some examples of the embodiments of this application, the configuration of the second driving component 322 may be the same as, similar to or similar to that of the first driving component 312. For details, please refer to the detailed description of the first driving component 312 in the foregoing embodiments of this application. This application will not repeat the details in this embodiment.

[0110] In some examples of embodiments of this application, a first driving component 312 is provided on the first adjusting arm 31, and the first driving component 312 is connected to the first abutment 311. A second driving component 322 is provided on the second adjusting arm 32, and the second driving component 322 is connected to the second abutment 321. Thus, the first driving component 312 can drive the first abutment 311 along a first direction, and the second driving component 322 can drive the second abutment 321 along the first direction. This facilitates the movement of the first abutment 311 and the second abutment 321 relative to the material box 50 along the first direction, and facilitates the contact between the first abutment 311 and the second abutment 321 and the side wall of the material box 50. This allows the deflection angle of the gripper 40 to be adjusted according to the deflection angle of the side wall of the material box 50, making it easier to adjust the deflection angle of the gripper 40 to match the deflection angle of the material box 50. This facilitates clamping the material box 50 for decapping or capping operations, improving the efficiency of decapping and capping the tobacco box.

[0111] Figure 3 This is a top view of the cap-adding / removing device provided in some embodiments of this application.

[0112] In some examples, refer to Figure 1 and Figure 3 As shown, the cap removal device may include a first reset member 60. One end of the first reset member 60 may be connected to the frame 10. The other end of the first reset member 60 may be connected to the first support 23.

[0113] In some examples, the first reset member 60 may include an elastic member.

[0114] In some examples, the first reset member 60 may include a tension spring. The axial direction of the tension spring may be set along a first direction.

[0115] In some examples, refer to Figure 3 As shown, along the second direction, the first reset member 60 can be connected to the middle of the first bracket 23.

[0116] In some examples, when the adjusting frame 30 rotates according to the deflection of the side wall of the hopper 50, the first reset member 60 can store force. After the gripper 40 completes the operation of removing or adding a cover to the hopper 50, the adjusting frame 30 can no longer abut against the side wall of the hopper 50. At this time, the stored force of the first reset member 60 can be released, thereby resetting the adjusting frame 30 through the first bracket 23, so that the adjusting frame 30 can abut against the next hopper 50.

[0117] In some examples, refer to Figure 1 and Figure 3 As shown, the cap-adding / removing device may include a second reset member 70. Along the second direction, the second reset member 70 may be disposed opposite to the first reset member 60.

[0118] In some examples, one end of the second reset member 70 may be connected to the rack 10, and the other end of the second reset member 70 may be connected to the second bracket 24.

[0119] It is understood that in some examples of the embodiments of this application, the setting method of the second reset member 70 may be the same as, similar to or similar to the setting method of the first reset member 60. For details, please refer to the detailed description of the first reset member 60 in the foregoing embodiments of this application. The embodiments of this application will not repeat the details.

[0120] In some examples of embodiments of this application, a first reset member 60 is provided on the frame 10, with one end connected to the frame 10 and the other end connected to the first support 23; and a second reset member 70 is provided on the frame 10, positioned opposite to the first reset member 60 along a first direction, with one end connected to the frame 10 and the other end connected to the second support 24. Thus, after the gripper 40 completes the cap removal or capping operation, the first abutment member 311 and the second abutment member 321 can separate from the side wall of the material box 50. At this time, the first reset member 60 and the second reset member 70 can reset the adjusting frame 30 through the first support 23 and the second support 24, facilitating the adjusting frame 30 to abut and adapt to the next material box 50. This improves the efficiency of cap removal and capping of the tobacco box.

[0121] In some examples, refer to Figure 1 and Figure 3 As shown, a first limiting member 12 may be provided on the frame 10. Along the first direction, the first limiting member 12 may be located on one side of the rotation axis 21.

[0122] In some examples, a third limiting member 231 may be provided on the first bracket 23.

[0123] In some examples, the first limiting member 12 may be located on the rotation path of the third limiting member 231. That is, when the first bracket 23 rotates about the rotation axis 21, the first limiting member 12 may cooperate with the third limiting member 231 to limit the rotation angle of the first bracket 23.

[0124] In some examples, refer to Figure 1 and Figure 3 As shown, a second limiting member 13 may be provided on the frame 10. Along the first direction, the second limiting member 13 may be disposed opposite to the first limiting member 12 on the other side of the rotation axis 21.

[0125] In some examples, a fourth limiting member 241 may be provided on the second support 24. The second limiting member 13 may be located on the rotation path of the fourth limiting member 241. That is, when the second support 24 rotates about the rotation axis 21, the second limiting member 13 may cooperate with the fourth limiting member 241 to limit the rotation angle of the second support 24.

[0126] In some examples of embodiments of this application, by providing a first limiting member 12 and a second limiting member 13 on the frame 10, the first limiting member 12 is located on one side of the rotation axis 21, and the second limiting member 13 is located on the other side of the rotation axis; and by providing a third limiting member 231 on the first bracket 23 and a fourth limiting member 241 on the second bracket 24, the first limiting member 12 is located on the rotation path of the third limiting member 231, and the second limiting member 13 is located on the rotation path of the fourth limiting member 241; in this way, the rotation angle of the rotating bracket 20 can be limited by the cooperation of the first limiting member 12 and the third limiting member 231, and the cooperation of the second limiting member 13 and the fourth limiting member 241, so that the rotating bracket 20 can be limited to rotate within a preset angle range, which can prevent the rotating bracket 20 from rotating excessively and improve the safety of the rotation of the rotating bracket 20.

[0127] In some examples, refer to Figure 1 As shown, the first limiting member 12 may include two.

[0128] In some examples, along the second direction, the two first limiting members 12 may be located on both sides of the rotation axis 21.

[0129] In some examples, refer to Figure 1 As shown, one of the first limiting members 12 can be located on one side of the first reset member 60. The other first limiting member 12 can be located on the other side of the first reset member 60.

[0130] In some examples, the two first limiting members 12 may be symmetrically arranged relative to the first reset member 60.

[0131] In some examples, refer to Figure 1 As shown, the first limiting member 12 may have a groove 121. The third limiting member 231 may be located within the groove 121.

[0132] In some examples, the third limiting member 231 may include a third roller 2311. The third roller 2311 may be rotatably connected to the first bracket 23. The third roller 2311 may be located within the groove 121.

[0133] In some examples of embodiments of this application, when the first support 23 rotates about the rotation axis 21, the third roller 2311 can rotate within the groove 121. When the third roller 2311 abuts against the side wall of the groove 121 along the second direction, the first support 23 cannot continue to rotate, thereby limiting the rotation angle of the rotating support 20.

[0134] In some examples, the second limiting member 13 may include two. Along the second direction, the two second limiting members 13 may be located on opposite sides of the rotation axis 21.

[0135] It is understood that in some examples of the embodiments of this application, the setting method of the second limiting member 13 may be the same as, similar to or similar to that of the first limiting member 12, and the setting method of the fourth limiting member 241 may be the same as, similar to or similar to that of the third limiting member 231. For details, please refer to the detailed description of the first limiting member 12 and the third limiting member 231 in the foregoing embodiments of this application. The embodiments of this application will not repeat the details.

[0136] In some examples of embodiments of this application, two first limiting members 12 are provided along the second direction, located on both sides of the rotation axis 21, and two second limiting members 13 are provided along the second direction, located on both sides of the rotation axis 21. In this way, the rotation direction of the rotating bracket 20 can be limited from both sides, thereby improving the stability of the rotation of the rotating bracket 20.

[0137] In some examples, refer to Figure 2 and Figure 3 As shown, the first bracket 23 may be provided with a first slide rail 232. The first adjusting arm 31 may be slidably connected to the first slide rail 232.

[0138] In some examples, the first slide rail 232 may extend along a first direction.

[0139] In some examples, the first adjusting arm 31 may have a crossbeam 303 extending along a first direction. The crossbeam 303 may be slidably connected to the first slide rail 232.

[0140] In some examples, a slider 304 may be provided on the first slide rail 232. The slider 304 can be slidably connected to the first slide rail 232. The crossbeam 303 can be fixedly connected to the slider 304.

[0141] In other words, in some examples of embodiments of this application, the first adjusting arm 31 can slide along the first direction on the first bracket 23.

[0142] In some examples, refer to Figure 2 and Figure 3 As shown, the second bracket 24 may be provided with a second slide rail 242. The second slide rail 242 may extend along the first direction.

[0143] In some examples, the second adjusting arm 32 can be slidably connected to the second slide rail 242.

[0144] In some examples, the second adjusting arm 32 may be configured on the second bracket 24 in the same, similar, or analogous manner as the first adjusting arm 31 may be configured on the first bracket 23. For details, please refer to the detailed description of the foregoing embodiments of this application. The embodiments of this application will not repeat the details here.

[0145] In some examples, refer to Figure 2 and Figure 3 As shown, a third drive component 16 may be provided on the rotating bracket 20. The power shaft of the third drive component 16 may extend along the first direction.

[0146] In some examples, the third drive component 16 may include simultaneously driving the first adjusting arm 31 and the second adjusting arm 32 to move in opposite directions. For example, see reference... Figure 3 As shown, the third drive component 16 can move along Figure 3 The positive direction of the x-axis drives the second adjusting arm 32 to move, and along... Figure 3 The negative direction of the x-axis drives the first adjusting arm 31 to move, thereby bringing the first adjusting arm 31 and the second adjusting arm 32 closer together. Alternatively, the third driving component 16 can move along... Figure 3 The negative direction of the x-axis drives the second adjusting arm 32 to move, and along... Figure 3 The first adjusting arm 31 is moved in the positive x-axis direction, thereby causing the first adjusting arm 31 and the second part to move away from each other.

[0147] In some examples, the third drive component 16 may include a bidirectional cylinder or a bidirectional linear motor. One output of the bidirectional cylinder or bidirectional linear motor may be connected to the first adjusting arm 31. The other output of the bidirectional cylinder or bidirectional linear motor may be connected to the second adjusting arm 32.

[0148] In some examples, the third drive component 16 may include a double-helix screw. For example, one end of the screw is threadedly connected to the first adjusting arm 31, and the other end is threadedly connected to the second adjusting arm 32. The threads at both ends of the screw have opposite directions. Thus, when the screw rotates, it can simultaneously drive the first adjusting arm 31 and the second adjusting arm 32 to move towards each other or away from each other.

[0149] In some examples, refer to Figure 1 and Figure 2 As shown, a first elastic blocking member 14 may be provided on the frame 10. The first elastic blocking member 14 may be located between the first adjusting arm 31 and the second adjusting arm 32.

[0150] In some examples, the first resilient stop 14 may be located between the crossbeam 303 of the first adjusting arm 31 and the crossbeam 303 of the second adjusting arm 32.

[0151] In some examples, the first elastic stop 14 can be located on the sliding path of the first adjusting arm 31 and the second adjusting arm 32 relative to the rotating bracket 20. Thus, when the third driving component 16 drives the first adjusting arm 31 and the second adjusting arm 32 to move towards each other, the first elastic stop 14 can limit and block the movement displacement of the first adjusting arm 31 and the second adjusting arm 32, preventing collisions and improving the safety of the sliding of the first adjusting arm 31 and the second adjusting arm 32 relative to the rotating bracket 20. Furthermore, it can reduce the force when the first adjusting arm 31 and the second adjusting arm 32 contact the hopper 50, effectively protecting the hopper 50.

[0152] In some examples, a second resilient stop (not shown) may be provided on the frame 10. The second resilient stop may be located on the side of the first support 23 opposite to the second support 24. The second resilient stop may be located on the sliding path of the first adjusting arm 31.

[0153] In some examples, when the first adjusting arm 31 slides away from the second adjusting arm 32, the second elastic stop can block the first adjusting arm 31, thereby limiting the sliding range of the first adjusting arm 31 and improving the safety of the cover removal device.

[0154] In some examples, refer to Figure 1 As shown, a third elastic stop 15 may be provided on the frame 10. The third elastic stop 15 may be located on the side of the second support 24 opposite to the first support 23. The third elastic stop 15 may be located on the sliding path of the second support 24.

[0155] In some examples, the third resilient stop 15 may be positioned opposite the second resilient stop along the first direction.

[0156] In some examples, the third elastic blocking member 15 may be configured in the same, similar or similar manner as the second elastic blocking member. For details, please refer to the detailed description of the second elastic blocking member in the foregoing embodiments of this application. This application will not repeat the description in this regard.

[0157] In some examples of embodiments of this application, a first slide rail 232 is provided on the first bracket 23, and the first adjusting arm 31 is slidably connected to the first slide rail 232; a second slide rail 242 is provided on the second bracket 24, and the second adjusting arm 32 is slidably connected to the second slide rail 242. This facilitates the adjustment of the first adjusting arm 31 and the second adjusting arm 32.

[0158] In addition, in some examples of embodiments of this application, a first elastic blocking member 14 is provided on the frame 10, located between the first adjusting arm 31 and the second adjusting arm 32, and situated on the sliding path of the first adjusting arm 31 and the second adjusting arm 32 relative to the rotating bracket 20; a second elastic blocking member and a third elastic blocking member 15 are provided on the frame 10, the second elastic blocking member being located on the side of the first bracket 23 opposite to the second bracket 24, and situated on the sliding path of the first adjusting arm 31; the third elastic blocking member 15 being located on the side of the second bracket 24 opposite to the first bracket 23, and situated on the sliding path of the second adjusting arm 32. Thus, the sliding distance of the first adjusting arm 31 and the second adjusting arm 32 can be limited by the first elastic component, the second elastic component, and the third elastic component, thereby improving the safety of using the cap-adding / removing device.

[0159] In some examples, refer to Figure 1 and Figure 2 The gripper 40 may include a first gripping component 41. The first gripping component 41 may be disposed on the first adjusting arm 31.

[0160] In some examples, the gripper 40 may include a second gripping member 42. The second gripping member 42 may be disposed opposite to the first gripping member 41 on the second adjusting arm 32.

[0161] In some examples, refer to Figure 1 and Figure 2 As shown, either the first clamping component 41 or the second clamping component 42 may include a fixed clamping plate 411 and a movable clamping plate 412.

[0162] In some examples, for ease of explanation, the first clamping component 41 is used as a specific example in some examples of embodiments of this application.

[0163] In some examples, the fixed clamp 411 may be fixedly connected to the first adjusting arm 31.

[0164] In some examples, the movable clamp 412 may be movably connected to the first adjusting arm 31. The movable clamp 412 may be located on the side of the fixed clamp 411 facing the working position 11.

[0165] In some examples, the movable clamp 412 can move toward the fixed clamp 411, thereby clamping the edge of the cover 51 between the movable clamp 412 and the fixed clamp 411.

[0166] In some examples, refer to Figure 1 and Figure 2As shown, a fourth drive component 401 may be provided on either the first adjusting arm 31 or the second adjusting arm 32. The output shaft of the fourth drive component 401 may be connected to the movable clamping plate 412. The fourth drive component 401 may drive the movable clamping plate 412 to move relative to the fixed clamping plate 411.

[0167] In some examples, the type of the fourth drive component 401 may be the same as, similar to or similar to the type of the first drive component 312. For details, please refer to the detailed description of the first drive component 312 in the foregoing embodiments of this application. This application will not repeat the details in the embodiments.

[0168] In some examples of embodiments of this application, a first clamping member 41 is provided on the first adjusting arm 31, and a second clamping member 42 is provided on the second adjusting arm 32, with the second clamping member 42 positioned opposite to the first clamping member 41. In this way, the cover 51 can be clamped from both sides by the first clamping member 41 and the second clamping member 42, ensuring the stability of the cover 51 during the process of removing or adding the cover, thereby ensuring accurate alignment between the cover 51 and the box body 52.

[0169] Furthermore, by providing a fixed clamping plate 411 and a movable clamping plate 412 on either the first adjusting arm 31 or the second adjusting arm 32, the fixed clamping plate 411 is fixedly connected to either the first adjusting arm 31 or the second adjusting arm 32, and the movable clamping plate 412 is movably connected to either the first adjusting arm 31 or the second adjusting arm 32; the movable clamping plate 412 is located on the side of the fixed clamping plate 411 facing the working position 11; the movable clamping plate 412 and the fixed clamping plate 411 are used to clamp the edge of the cover 51 of the material box 50. This facilitates the clamping of the cover 51 by the first clamping component 41 and the second clamping component 42, and facilitates the removal or addition of the cover to the material box 50.

[0170] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0171] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A cap-adding device characterized by comprising: include: A frame (10); the frame (10) is provided with a working position (11), the working position (11) is used to carry the material box (50); A rotating bracket (20) is rotatably mounted on the frame (10), and the rotation axis (21) of the rotating bracket (20) relative to the frame (10) intersects with the bearing plane of the working position (11); Adjustment frame (30), the adjustment frame (30) is disposed on the rotating support (20), the adjustment frame (30) is located on the side of the rotating support (20) facing the working position (11), the adjustment frame (30) is used to drive the rotating support (20) to rotate when it abuts against the side wall of the material box (50); The gripper (40) is located on the adjustment frame (30) along the rotation axis (21). The gripper (40) is movably connected to the adjustment frame (30). The gripper (40) is used to cooperate with the cover (51) of the material box (50) on the side facing the working position (11).

2. The capping and decapping apparatus of claim 1, wherein, The rotating support (20) includes: The first support (23) is located on one side of the rotation axis (21) along the first direction; The second support (24) is located on the other side of the rotation axis (21) along the first direction; The adjustment frame (30) includes: The first adjusting arm (31) is connected to the first bracket (23) and is located on the side of the first bracket (23) facing the working position (11). The second adjusting arm (32) is connected to the second bracket (24). The second adjusting arm (32) is located on the side of the second bracket (24) facing the working position (11). Along the first direction, the first adjusting arm (31) is opposite to the second adjusting arm (32).

3. The capping and decapping apparatus of claim 2, wherein, The first adjusting arm (31) is provided with a first abutting member (311), which is located on the side of the first adjusting arm (31) facing the second adjusting arm (32); The first abutment (311) is movably connected to the first adjusting arm (31) along the first direction; The second adjusting arm (32) is provided with a second abutment (321), which is located on the side of the second adjusting arm (32) facing the first adjusting arm (31); along the first direction, the second abutment (321) is movably connected to the second adjusting arm (32).

4. The capping and decapping apparatus of claim 3, wherein, Either the first abutment (311) or the second abutment (321) extends along a second direction, which intersects with the first direction; The first abutment (311) is provided with first rollers (3111) at both ends along the second direction. The first rollers (3111) are rotatably connected to the first abutment (311), and the rotation axis of the first rollers (3111) intersects the first direction and the second direction. The second abutment (321) is provided with a second roller (3211) at both ends along the second direction. The second roller (3211) is rotatably connected to the second abutment (321), and the rotation axis of the second roller (3211) intersects the first direction and the second direction.

5. The capping and decapping apparatus of claim 3, wherein, The first adjusting arm (31) is provided with a first driving component (312), the first driving component (312) is connected to the first abutment (311), and the first driving component (312) is used to drive the first abutment (311) to move along the first direction; The second adjusting arm (32) is provided with a second driving component (322), which is connected to the second abutment (321). The second driving component (322) is used to drive the second abutment (321) to move along the first direction.

6. A capping and decapping apparatus according to any one of claims 2-5, wherein, The cap-adding / removing device further includes: The first reset member (60) has one end connected to the frame (10) and the other end connected to the first bracket (23). The second reset member (70) is arranged opposite to the first reset member (60) along the first direction. One end of the second reset member (70) is connected to the frame (10), and the other end of the second reset member (70) is connected to the second bracket (24).

7. The cap-adding / removing device according to any one of claims 2-5, characterized in that, The frame (10) is provided with a first limiting member (12) and a second limiting member (13). The first limiting member (12) is located on one side of the rotation axis (21), and the second limiting member (13) is located on the other side of the rotation axis (21) opposite to the first limiting member (12). The first bracket (23) is provided with a third limiting member (231), and the second bracket (24) is provided with a fourth limiting member (241). The first limiting member (12) is located on the rotation path of the third limiting member (231), and the second limiting member (13) is located on the rotation path of the fourth limiting member (241).

8. The capping and decapping apparatus of claim 7, wherein, The first limiting member (12) includes two, and along the second direction, the two first limiting members (12) are located on both sides of the rotation axis (21); the second limiting member (13) includes two, and along the second direction, the two second limiting members (13) are located on both sides of the rotation axis (21).

9. A capping and decapping apparatus according to any one of claims 2-5, wherein, The first bracket (23) is provided with a first slide rail (232), and the first adjusting arm (31) is slidably connected to the first slide rail (232); the second bracket (24) is provided with a second slide rail (242), and the second adjusting arm (32) is slidably connected to the second slide rail (242); The frame (10) is provided with a first elastic blocking member (14), which is located between the first adjusting arm (31) and the second adjusting arm (32), and the first elastic blocking member (14) is located on the sliding path of the first adjusting arm (31) and the second adjusting arm (32) relative to the rotating bracket (20); The frame (10) is also provided with a second elastic blocking member and a third elastic blocking member (15). The second elastic blocking member is located on the side of the first support (23) away from the second support (24) and is located on the sliding path of the first adjusting arm (31). The third elastic blocking member (15) is located on the side of the second support (24) away from the first support (23) and is located on the sliding path of the second adjusting arm (32).

10. A capping and decapping apparatus according to any one of claims 2-5, wherein, The gripper (40) includes: The first clamping component (41) is disposed on the first adjusting arm (31); The second clamping component (42) is disposed on the second adjusting arm (32) opposite to the first clamping component (41); Either the first clamping component (41) or the second clamping component (42) includes a fixed clamping plate (411) and a movable clamping plate (412). The fixed clamping plate (411) is fixedly connected to either the first adjusting arm (31) or the second adjusting arm (32), and the movable clamping plate (412) is movably connected to either the first adjusting arm (31) or the second adjusting arm (32). The movable clamping plate (412) is located on the side of the fixed clamping plate (411) facing the working position (11). The movable clamping plate (412) and the fixed clamping plate (411) are used to clamp the edge of the cover (51) of the material box (50).

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