Tapered roller packaging machine

Abstract

The invention relates to the technical field of packaging machines, solves the problem that the utilization rate of a tapered roller packaging space is not high, and discloses a tapered roller packaging machine which comprises a rack, a feeding mechanism, a transferring mechanism and a packaging mechanism, and the feeding mechanism, the transferring mechanism and the packaging mechanism are arranged on the rack. The head end of the conveying belt is connected with an external feeding machine, and the tail end of the conveying belt is connected with the transferring mechanism. The transfer mechanism comprises a transfer part and a control assembly for controlling the transfer part to feed the tapered rollers into the packaging mechanism; the control assembly comprises a rotating part for controlling the tapered rollers to rotate and a transfer module for controlling the tapered rollers to be fed into the packaging mechanism; the packaging mechanism comprises a containing frame for containing packaging boxes, and the containing frame is obliquely arranged and used for receiving the tapered rollers conveyed by the transferring mechanism. The tapered roller can be conveniently and efficiently packaged, and the space utilization rate of the whole packaging box is increased.

Description

Technical Field

[0001] The present application relates to the technical field of packaging machines, and in particular to a tapered roller packaging machine. Background Art

[0002] Tapered roller bearings are often simply referred to as tapered rollers. They include a large head end with a larger diameter and a small head end with a smaller diameter. They are parts required for use in some specific machines.

[0003] After manufacturers produce tapered rollers, they need to be packaged in boxes before shipment. The arrangement of the rollers during shipment is also very particular, with the large ends of the tapered rollers facing the same direction. However, due to the tapered surface of the tapered rollers, they tend to spin when placed in the box. Therefore, the box is usually equipped with multiple placement slots to divide the tapered rollers into different areas, thus restricting their position. Currently, manufacturers can only arrange and package the rollers manually. While this packaging method can prevent the tapered rollers from spinning, it results in the effective space within the installation box not being fully utilized, and its efficiency is relatively low. Summary of the Invention

[0004] In order to improve the effective space utilization in the packaging box and the packaging efficiency, the present application provides a tapered roller packaging machine.

[0005] This application provides a tapered roller packaging machine, which adopts the following technical solutions: A tapered roller packaging machine includes a frame, and a feeding mechanism, a transfer mechanism, and a packaging mechanism arranged on the frame, wherein: The feeding mechanism includes a conveyor belt for conveying tapered rollers, the head end of the conveyor belt is connected to an external feeder, and the tail end of the conveyor belt is connected to a transfer mechanism; The transfer mechanism includes a transfer member and a control component that controls the transfer member to transfer the tapered roller into the packaging mechanism. The control component includes a rotating member that controls the rotation of the tapered roller and a transfer module that controls the tapered roller to be transferred into the packaging mechanism. The packaging mechanism comprises a placement rack for placing the packaging box, and the placement rack is arranged obliquely to receive the tapered roller sent by the transfer mechanism.

[0006] By adopting the above technical solution, the feeding mechanism transports the tapered rollers through the conveyor belt, and the transfer mechanism sends the tapered rollers into the packaging box of the packaging mechanism through the transfer parts. Since the placement rack is in an inclined state as a whole, the tapered rollers placed in the packaging box will first lean against the side wall of the packaging box in the direction of the lower end of the packaging box; in addition, due to the setting of the rotating parts in the transfer mechanism, before the rear tapered roller is fed into the packaging box, the rear tapered roller will first be horizontally rotated 180°, so that the large head end and the small head end of the tapered roller are exchanged, and the two adjacent tapered rollers in the front and rear can better lean against each other, which can make full use of the space in the packaging box. At the same time, this technical solution also improves the packaging efficiency of the tapered rollers.

[0007] Optionally, a positioning groove for positioning the tapered roller is provided at the center of the conveyor belt, and when the conveyor belt conveys the tapered roller, the axial direction of the tapered roller is consistent with the conveying direction of the conveyor belt.

[0008] By adopting the above technical solution, by providing positioning grooves on the conveyor belt, the tapered rollers can be positioned by the positioning grooves when arranged on the conveyor belt, thereby preventing the tapered rollers from deflecting or rotating on the conveyor belt.

[0009] Optionally, the frame is provided with a stopper above the tail end of the conveyor belt, the tapered roller moves on the conveyor belt and stops under the action of the stopper, and the transfer member is located above the stopper for transferring the corresponding tapered roller.

[0010] By adopting the above technical solution, the tapered rollers on the conveyor belt will be blocked by the block when they are transferred to the block position. At this time, the conveyor belt will continue to rotate, but the blocked tapered rollers will be detained, and the tapered rollers at the rear will also be detained by the tapered rollers in front. This will facilitate subsequent transfer parts to pick up the tapered rollers.

[0011] Optionally, there are multiple transfer members, which are arranged on a mounting plate, and the rotating member controls the mounting plate to rotate.

[0012] By adopting the above technical solution, multiple transfer parts can transfer multiple tapered rollers at a time. The specific number can be determined according to the required width of the packaging box, so that the total length of a row of tapered rollers can be adapted to the width of the packaging box. When sending them into the packaging box, it is only necessary to arrange the tapered rollers in each row in sequence along the length direction of the packaging box. The tapered rollers in adjacent rows will abut against each other, making full use of the internal space of the packaging box.

[0013] Optionally, the frame is further provided with a gantry on the conveyor belt, the gantry is located in front of the conveyor belt close to the block, and the tapered rollers on the conveyor belt pass normally under the gantry. The gantry is also provided with a detection sensor, which is used to detect whether the tapered rollers under the gantry are moving.

[0014] By adopting the above technical solution and setting a detection sensor on the gantry, when it is detected that the tapered roller at the bottom of the gantry no longer moves, it means that a certain number of tapered rollers have been retained in front of the block. At this time, the transfer piece can take the tapered roller from the position between the gantry and the block.

[0015] Optionally, the transfer module includes a horizontal linear module and a vertical linear module, the horizontal linear module controls the transfer component to move in a horizontal direction, and the vertical linear module controls the transfer component to move in a vertical direction.

[0016] By adopting the above technical solution, the horizontal linear module drives the transfer part to move horizontally toward or away from the packaging mechanism, while the vertical linear module drives the transfer part to move vertically. The overall coordinated action process is as follows: when the tapered roller is first picked up, the vertical linear module first moves downward close to the conveyor belt position. At this time, the transfer part can first pick up the tapered roller; after picking up the tapered roller, it rises and returns to its original position to separate from the conveyor belt. Then, the rotating part controls all the tapered rollers to rotate 180° to achieve steering. The horizontal linear module then controls the horizontal movement to the top of the packaging mechanism, and the vertical linear module controls the vertical downward movement to place the tapered rollers. When resetting, the vertical linear module first controls the rise, and then the horizontal linear module controls the horizontal movement to reset.

[0017] Optionally, the rack is provided with a sliding track for the placement rack to slide, the outer end of the sliding track is close to the edge of the rack, and the inner end of the sliding track is located on the side of the transfer mechanism. There are two placement racks, and the two placement racks are respectively arranged on both sides of the transfer mechanism.

[0018] By adopting the above technical solution, since the packaging box needs to be replaced after the tapered rollers are placed, the placement rack can be easily pushed out by setting a sliding track to replace the packaging box. When the placement rack on one side is moved out to replace the packaging box, the packaging box on the placement rack on the other side can still be packaged by the tapered rollers, which can improve the overall packaging efficiency and eliminate the need to wait for the time to replace the packaging box.

[0019] Optionally, a locking assembly is provided at one end of the sliding rail located in the frame, and the locking assembly is used to fix the placement rack at a predetermined position. The locking assembly includes a movable part, and the bottom of the placement rack has a locking groove for inserting the movable part.

[0020] By adopting the above technical solution, locking is achieved by inserting a movable part into the locking groove, so that the placement rack will not deviate when in use.

[0021] Optionally, the movable member is an eccentric rotating wheel, and the eccentric rotating wheel is controlled by a motor; When the eccentric end of the eccentric rotating wheel passes through the notch and protrudes into the sliding track, the eccentric rotating wheel can enter the locking groove and lift the placement rack to maintain an inclined state; When the eccentric end of the eccentric rotating wheel is located at the bottom of the sliding track, the placement rack is in a horizontal state.

[0022] By adopting the above technical solution, the movable part acts as an eccentric rotating wheel, which can push the placement rack as a whole to maintain an inclined state after entering the locking groove, without the need for additional assistance from other structures; at the same time, when the eccentric end of the eccentric rotating wheel is located at the bottom of the sliding track, the placement rack can be maintained in a horizontal state, which facilitates the movement of the placement rack.

[0023] Optionally, a positioning block is provided on the rack at the inner end of the sliding track, and when the placement rack moves to abut against the positioning block, the movable member and the locking groove are in an aligned state.

[0024] By adopting the above technical solution, the provision of the positioning block can facilitate the positioning of the placement rack, so that the movable part can better enter the locking groove to realize the positioning of the placement rack.

[0025] In summary, this application has at least one of the following beneficial effects: 1. The inclined placement rack enables the first row of tapered rollers placed in the packaging box to first rest against the side wall of the packaging box, preventing them from shifting randomly. In addition, multiple tapered rollers are transported together through the transfer unit and automatically rotated and arranged, improving packaging efficiency. 2. The tapered rollers from the last row rotate 180° and can move in the opposite direction to the tapered rollers in the previous row. The tapered rollers in the two adjacent rows are pressed against each other to make full use of the space in the packaging box. 3. The eccentric rotating wheel can not only keep the placement rack in an inclined state, but also can be used to position and lock the placement rack. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is an overall schematic diagram of the tapered roller packaging machine in the embodiment of the present application; Figure 2 Schematic diagram of the feeding mechanism and the transfer mechanism in the embodiment of the present application; Figure 3 is a schematic diagram of a protruding sliding track and an eccentric rotating wheel in a packaging mechanism in an embodiment of the present application; Figure 4a This is a diagram of the original packaging box for the tapered roller; Figure 4b This is a schematic diagram of packaging tapered rollers according to an embodiment of the present application.

[0027] Explanation of the accompanying drawings: 1. Frame; 11. Sliding track; 12. Eccentric rotating wheel; 13. Positioning block; 2. Feeding mechanism; 21. Conveyor belt; 211. Positioning groove; 22. Stop block; 23. Gantry; 24. Material receiving box; 3. Transfer mechanism; 31. Transfer part; 32. Control assembly; 321. Rotating part; 322. Control module; 3221. Horizontal linear module; 3222. Vertical linear module; 323. Mounting plate; 4. Packaging mechanism; 41. Placement rack; 42. Packaging box. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-4b This application is described in further detail.

[0029] Reference Figure 1 The embodiment of the present application discloses a tapered roller packaging machine, including a frame 1, and a feeding mechanism 2, a transfer mechanism 3 and a packaging mechanism 4 arranged on the frame 1.

[0030] Reference Figure 2 Furthermore, the feeding mechanism 2 includes a conveyor belt 21 provided on the frame 1. The head end of the conveyor belt 21 is located outside the frame 1 and is connected to an external feeder, which is not shown in the figure. In the embodiment of the present application, the feeder is a vibrating screen, which can sequentially feed the tapered rollers onto the conveyor belt 21 in a constant arrangement (small end in front, large end in back). The overall cross-section of the conveyor belt 21 is concave, and a positioning groove 211 is provided in the middle of the conveyor belt 21. The positioning groove 211 can prevent the tapered rollers from rotating when placed on the conveyor belt 21 for transportation, thereby achieving positioned transportation. The setting of this structure can be achieved by the transfer wheel of the conveyor belt 21.

[0031] The frame 1 is equipped with a stopper 22 above the tail end of the conveyor belt 21. This stopper 22 prevents the tapered rollers from escaping from the tail end of the conveyor belt 21 and ensures that the tapered rollers fed from the conveyor belt 21 abut against the front end of the stopper 22 in sequence, with no gaps between them. A receiving box 24 is located at the bottom of the conveyor frame, below the stopper 22, to collect any tapered rollers that accidentally fall off.

[0032] The frame 1 is also equipped with a gantry 23 on the conveyor belt 21. The gantry 23 is located in front of the conveyor belt 21 near the stop 22 and is separated by a distance equal to the axial length of multiple tapered rollers. The middle of the gantry 23 allows the tapered rollers on the conveyor belt 21 to pass normally. The gantry 23 is also equipped with a detection sensor. The detection sensor can detect that the tapered rollers below the gantry 23 have stopped moving. This means that a row of tapered rollers has been arranged between the stop 22 and the detection sensor, ready for transshipment and packaging. The total length of the tapered roller row is compatible with the width of the packaging box 42. This allows the tapered rollers to be directly placed in the packaging box 42 during packaging. After that, the tapered rollers need only be arranged in sequence along the length of the packaging box 42.

[0033] Reference Figure 2 Furthermore, the transfer mechanism 3 includes multiple transfer elements 31 for transferring the tapered rollers, and a control assembly 32 for controlling the transfer elements 31 to deliver the tapered rollers into the packaging mechanism 4. The transfer elements 31 can be mechanical control elements such as vacuum suction cups and pneumatic grippers for removing and placing the tapered rollers. In this embodiment, the transfer elements 31 used are vacuum suction cups, which prevent interference with the inner wall of the packaging box 42 when placing the tapered rollers, facilitating their packaging and placement. The number of transfer elements 31 is equal to the number of tapered rollers arranged between the detection sensor and the stopper 22, enabling the simultaneous removal of a row of tapered rollers.

[0034] The control assembly 32 includes a rotating member 321 that controls the horizontal rotation of the tapered rollers and a transfer module that controls the delivery of the tapered rollers into the packaging mechanism 4. All transfer members 31 are mounted on a mounting plate 323. The rotating member 321 is connected to the mounting plate 323, driving the mounting plate 323 to rotate, thereby driving all transfer members 31 to rotate together. The rotating member 321 is a rotary cylinder. Before the alternate row of tapered rollers is delivered to the packaging box 42, the rotating cylinder drives the mounting plate 323 to rotate 180 degrees, ensuring that the tapered rollers of the two adjacent rows are delivered to the packaging box 42 in opposite directions. This allows the tapered rollers between the two adjacent rows to better utilize the space within the packaging box 42, occupying much less space than two parallel rows of tapered rollers. In addition, the adjacent rows of tapered rollers are restrained by each other, making them less likely to deflect.

[0035] The transfer module consists of a horizontal linear module 3221 and a vertical linear module 3222. The overall operation of the transfer module is as follows: After the tapered rollers are arranged below the transfer member 31, the vertical linear module 3222 controls the mounting plate 323 to move downward, allowing the transfer member 31 to pick up the tapered rollers. The vertical linear module 3222 then controls the mounting plate 323 to move upward, away from the conveyor belt 21. The horizontal linear module 3221 then moves the transfer member 31 horizontally to above the packaging mechanism 4. The vertical linear module 3222 then moves the transfer member downward for unloading and packaging. During reset, the vertical linear module 3222 first controls the upward movement, followed by the horizontal linear module 3221 controlling the horizontal movement and reset. Furthermore, when controlling the transfer of the next row of tapered rollers, the horizontal movement distance of the horizontal linear module 3221 is shorter than the conveying distance of the previous row of tapered rollers. Specifically, the distance is approximately equal to the diameter of the middle portion of one tapered roller, to ensure that there is no interference with the previous row of tapered rollers. In other embodiments, an additional linear control module 322 that moves back and forth can be provided to achieve multi-directional control of the transfer member 31.

[0036] It should be noted that the transfer module will only start to work after the detection sensor on the gantry 23 senses the presence of a tapered roller below whose position does not change. At the same time, when the transfer part 31 clamps the tapered roller, the conveyor belt 21 will also stop conveying to facilitate the clamping of the transfer part 31.

[0037] Reference Figure 1 and Figure 3 Furthermore, the packaging mechanism 4 includes two placement racks 41 respectively arranged on both sides of the transfer mechanism 3. The packaging box 42 for packaging the tapered rollers is placed on the placement rack 41, and the tapered rollers delivered by the transfer mechanism 3 are placed in the packaging box 42 for packaging.

[0038] Once the packaging box 42 is filled with tapered rollers, it needs to be removed and replaced with a new packaging box 42. Therefore, to facilitate the operator's replacement of the packaging box 42 on the placement rack 41, a sliding track 11 is provided on the frame 1. The end of the sliding track 11 is close to the outside of the frame 1, and the bottom of the placement rack 41 is provided with a guide block that can move on the sliding track 11. After the packaging box 42 is filled with tapered rollers, the operator can move the placement rack 41 to move the packaging box 42 out of the frame 1, thereby facilitating the replacement of the packaging box 42.

[0039] A key point of the present invention is that an eccentric rotating wheel 12 is provided on the frame 1 between the sliding rails 11. The eccentric rotating wheel 12 is controlled by a motor. When the eccentric end of the eccentric rotating wheel 12 rotates below the horizontal position of the sliding rail 11, the eccentric rotating wheel 12 does not contact the placement rack 41, and the placement rack 41 is in a horizontal position and can move freely on the sliding rail 11. When the eccentric end of the eccentric rotating wheel 12 rotates above the horizontal position of the sliding rail 11, the eccentric end of the eccentric rotating wheel 12 abuts against the bottom end of the placement rack 41 and drives the placement rack 41 to rotate, causing the placement rack 41 to approach and remain in an inclined state. The inclination angles of the placement racks 41 on both sides are opposite. The side closest to the transfer mechanism 3 is lifted upward by the eccentric rotating wheel 12, while the other side remains in position with the sliding rail 11. The sliding rail 11 has a certain arc surface to prevent the guide block at the bottom of the placement rack 41 from disengaging. At this time, the packaging box 42 placed on the placement rack 41 as a whole will also remain in an inclined state. In this way, the tapered rollers sent by the transfer mechanism 3 will first abut against the inclined lower end side wall of the packaging box 42 under the action of the inclined placement rack 41, and the next row of tapered rollers sent will also abut against the previous row of tapered rollers, and the two rows of tapered rollers will abut tightly without any large gap. Figure 4a This is a schematic diagram of the original packaging box 42 when the tapered roller is loaded. Figure 4b This is a schematic diagram of the tapered rollers loaded into the packaging box 42 in the present application. It can be seen that the packaging box 42 is nearly the same size. The number of tapered rollers that can be loaded in the present application is much greater than that of the original packaging form, and the tapered rollers in two adjacent rows are restricted to each other, and no deflection will occur.

[0040] In addition, in order to ensure that the packaging box 42 as a whole does not deviate when the transfer mechanism 3 transfers the tapered rollers, it is also necessary to lock the placement rack 41, so a locking mechanism needs to be set up. The present invention also further sets the structure of the placement rack 41 so that it can be directly used as a locking mechanism. Specifically, a locking groove (not shown in the figure) is provided at the bottom of the placement rack 41. When the eccentric rotating wheel 12 rotates into the locking groove, the placement rack 41 will be locked by the eccentric rotating wheel 12. At this time, the position of the placement rack 41 is the working position of the packaging mechanism 4, that is, the eccentric rotating wheel 12 can also be used as a movable part to lock the placement rack. In order to facilitate the alignment of the eccentric rotating wheel 12 with the locking groove at the bottom of the placement rack 41, a positioning block 13 is also provided on the inner end of the sliding track 11 on the frame 1. When the placement rack 41 moves to abut against the positioning block 13, the eccentric rotating wheel 12 is in an aligned state with the locking groove.

[0041] The implementation principle of a tapered roller packaging machine in the embodiment of the present application is as follows: Conical rollers delivered by an external feeder are transported via conveyor belt 21. When they reach stopper 22 at the front of conveyor belt 21, they are stopped by stopper 22. Conveyor belt 21 continues to move, allowing the tapered rollers behind to abut against those in front without any gaps. When the detection sensor on gantry 23 detects that the tapered rollers below gantry 23 have stopped moving, indicating that the number of tapered rollers remaining in front of stopper 22 is at least sufficient to meet the width of the packaging box 42, transfer mechanism 3 is activated to transfer the tapered rollers.

[0042] The vertical linear module 3222 in the transfer mechanism 3 drives the transfer part 31 to move downward. The transfer part 31 is a vacuum suction cup that directly absorbs a row of tapered rollers for transfer. During the process of the transfer part 31 absorbing the tapered rollers, the conveyor belt 21 will stop transmitting to avoid affecting the transfer part 31 absorbing the tapered rollers; then the vertical linear module 3222 controls the transfer part 31 to move upward. At this time, the conveyor belt 21 resumes transmission to prepare for the next row of tapered rollers to be transferred.

[0043] After the vertical linear module 3222 drives the transfer member 31 upward, the rotating member 321, a rotary cylinder, drives the mounting plate 323, causing the rotating member 321 to rotate horizontally 180°, thereby causing the tapered rollers to perform a 180° horizontal rotation. It should be noted that after one row of tapered rollers rotates, the next row does not rotate again. This ensures that adjacent rows of tapered rollers maintain opposite arrangements, thereby improving packaging efficiency.

[0044] Then the horizontal linear module 3221 drives the rotating part 321 to move horizontally with the tapered roller to above the packaging box 42, and the vertical linear module 3222 controls the transfer part 31 to move with the tapered roller into the packaging box 42. After putting down the tapered roller, the vertical linear module 3222 controls the transfer part 31 to rise, and the horizontal linear module 3221 drives the transfer part 31 to move horizontally and reset.

[0045] Since the packaging box 42 is arranged at an angle on the placement rack 41 as a whole, the tapered rollers sent by the transfer mechanism 3 will first rest against the inclined lower end side wall of the packaging box 42 under the action of the inclined placement rack 41, and the next row of tapered rollers sent will also rest against the previous row of tapered rollers, and the two rows of tapered rollers are tightly rested against each other without any large gap, thereby making full use of the overall space of the packaging box 42.

[0046] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A tapered roller packaging machine, characterized in that: It comprises a frame (1), and a feeding mechanism, a transfer mechanism (3) and a packaging mechanism (4) arranged on the frame (1), wherein: The feeding mechanism comprises a conveyor belt (21) for conveying tapered rollers, the head end of the conveyor belt (21) is connected to an external feeder, and the tail end of the conveyor belt (21) is connected to a transfer mechanism (3); The transfer mechanism (3) comprises a transfer member and a control component (32) for controlling the transfer member to transfer the tapered roller into the packaging mechanism (4); the control component (32) comprises a rotating member (321) for controlling the rotation of the tapered roller and a transfer module for controlling the tapered roller to be transferred into the packaging mechanism (4); The packaging mechanism (4) comprises a placement rack (41) for placing packaging boxes (42), and the placement rack (41) is arranged at an angle to receive the tapered rollers sent by the transfer mechanism (3).

2. A tapered roller packaging machine according to claim 1, characterized in that: A positioning groove (211) for positioning the tapered roller is provided at the center of the conveyor belt (21); when the conveyor belt conveys the tapered roller, the axial direction of the tapered roller is consistent with the conveying direction of the conveyor belt (21).

3. A tapered roller packaging machine according to claim 1, characterized in that: The frame (1) is provided with a stopper (22) above the rear end of the conveyor belt (21); the tapered roller moves on the conveyor belt (21) and stops under the action of the stopper (22); the transfer member is located above the conveyor belt (21) near the stopper (22) and is used to transfer the corresponding tapered roller.

4. A tapered roller packaging machine according to claim 3, characterized in that: The frame (1) is further provided with a gantry (23) above the conveyor belt (21); the gantry (23) is located in front of the stopper (22); and the tapered rollers on the conveyor belt (21) can pass normally below the gantry (23); and a detection sensor is further provided on the gantry (23); the detection sensor is used to detect whether the tapered rollers below the gantry (23) are moving.

5. The tapered roller packaging machine according to claim 1, characterized in that: The transfer members are provided in plurality and are arranged on a mounting plate (323); the rotating member (321) controls the mounting plate (323) to rotate.

6. A tapered roller packaging machine according to claim 5, characterized in that: The transfer module comprises a horizontal linear module (3221) and a vertical linear module (3222); the horizontal linear module (3221) controls the transfer member to move in a horizontal direction, and the vertical linear module (3222) controls the transfer member to move in a vertical direction.

7. The tapered roller packaging machine according to claim 1, characterized in that: The frame (1) is provided with a sliding track (11) for the placement rack (41) to slide, the outer end of the sliding track (11) is close to the edge of the frame (1), and the inner end of the sliding track (11) is located on the side of the transfer mechanism (3), two placement racks (41) are provided, and the two placement racks (41) are respectively arranged on both sides of the transfer mechanism (3).

8. The tapered roller packaging machine according to claim 7, characterized in that: A locking assembly is provided at one end of the sliding rail (11) located inside the frame (1), and the locking assembly is used to fix the placement rack (41) at a predetermined position. The locking assembly comprises a movable part, and the bottom of the placement rack (41) has a locking groove for inserting the movable part.

9. A tapered roller packaging machine according to claim 8, characterized in that: An eccentric rotating wheel (12) is arranged on the frame (1) at the bottom of the sliding track (11), the eccentric rotating wheel (12) is controlled by a motor, and a notch is provided in the middle of the sliding track (11) for the eccentric rotating wheel (12) to pass through; When the eccentric end of the eccentric rotating wheel (12) passes through the notch and protrudes into the sliding track (11), the eccentric rotating wheel (12) can keep the placement rack (41) in an inclined state; When the eccentric end of the eccentric rotating wheel (12) is located at the bottom of the sliding track (11), the placement rack (41) is in a horizontal state.

10. A tapered roller packaging machine according to claim 8, characterized in that: A positioning block (13) is provided on the frame (1) at the inner end of the sliding track (11); when the placement rack (41) moves to abut against the positioning block (13), the movable member and the locking groove are in an aligned state.

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