A packing fixture

Abstract

The present application discloses a packing fixture, which relates to the field of packaging devices and includes a mounting bracket fixedly arranged at the upper end of a base; a clamping mechanism for clamping a plurality of stacked plastic trays is arranged at the lower end of the base; the clamping mechanism includes upper clamping plates slidably arranged on both sides of the lower end of the base, racks are fixed on one side of the upper ends of the two upper clamping plates, side clamping plates are fixedly arranged at the mutually remote ends of the two upper clamping plates, a stop plate longitudinally slides in the middle of the outer sides of the two side clamping plates, stop cylinders for driving the longitudinal movement of the stop plate are fixedly arranged at the positions corresponding to the stop plate on both sides of the upper end of the base, and supporting bottom plates for supporting the plastic trays are hinged at the lower ends of the two side clamping plates; a movable notch for inserting one end of the stop plate is formed in the middle of the supporting bottom plate, and when the stop plate is inserted into the movable notch, the two stop plates are opposite and in a horizontal state. It is also very convenient to use under the working condition where the gap between the goods and the inner cavity of the box is small.

Description

Technical Field

[0001] The present application relates to the field of packaging devices, and particularly to a case loading fixture. Background Art

[0002] Under the condition that the gap between the multi-layer goods and the four sides of the carton is small, the traditional case loading can only use vacuum suction cups or fixtures to grab the goods layer by layer and put them into the carton, with low efficiency.

[0003] The present invention is mainly applied to the field of case loading and packaging of electronic products in the 3C industry. Electronic products are mostly packed in plastic trays. Multiple layers of plastic trays need to be placed in one carton. The traditional case loading can only use vacuum suction cups or fixtures to grab a single-layer plastic tray and put it into the carton layer by layer, with low efficiency. Especially in the condition that the gap between the goods and the inner cavity of the box is small, the traditional device is inconvenient to use. Summary of the Invention

[0004] In order to improve the problem of low efficiency in loading multi-layer goods into cases, the present application provides a case loading fixture.

[0005] The case loading fixture provided by the present application adopts the following technical solutions:

[0006] A case loading fixture includes a mounting bracket fixedly arranged at the upper end of a base;

[0007] A clamping mechanism for clamping a plurality of stacked plastic trays is arranged at the lower end of the base;

[0008] The clamping mechanism includes upper clamping plates slidably arranged on both sides of the lower end of the base. One side of the upper ends of the two upper clamping plates is fixedly provided with racks, and a reduction motor fixedly arranged at the upper end of the base drives the two racks to move through a driving gear;

[0009] Side clamping plates are fixedly arranged at the mutually remote ends of the two upper clamping plates. A stop plate longitudinally slides in the middle of the outer sides of the two side clamping plates. Stop cylinders for driving the stop plate to longitudinally move are fixedly arranged at the corresponding positions on both sides of the upper end of the base. The lower ends of the two side clamping plates are hinged with bottom support plates for supporting the plastic trays;

[0010] An activity notch for inserting one end of the stop plate is formed in the middle of the bottom support plate. When the stop plate is inserted into the activity notch, the two stop plates are opposite and in a horizontal state, and one side of the stop plate abuts against and is limited by one side of the activity notch.

[0011] By adopting the above technical solution, the device can be moved to any position and used in cooperation with a manipulator. The set reduction motor can drive the side clamping plates to clamp a plurality of plastic suction trays. At the same time, the stop cylinder drives the stop plate to move to lock the bottom plate, so that the bottom plate supports the bottom of the plastic suction trays, thereby realizing packing a plurality of plastic suction trays at one time. The settings of the side clamping plates and the bottom plate can be used under the condition that the gap between the goods and the inner cavity of the box is small.

[0012] Preferably, longitudinal grooves for sliding and limiting the stop plate are respectively opened in the middle of the outer sides of the two side clamping plates. A side middle plate for limiting the stop plate and matching the height of the side clamping plates is fixedly arranged outside the longitudinal grooves. The upper end of the stop plate extends out of the longitudinal grooves.

[0013] By adopting the above technical solution, both ends of the stop plate extend out of the longitudinal grooves. At the same time, the inner wall of the longitudinal groove is smooth, which can also limit the stop plate. The surface of the side middle plate contacts the surface of the stop plate to realize the limit.

[0014] Preferably, support plates fixed to the base are respectively arranged on both sides of the stop cylinder. The telescopic end of the stop cylinder is located between the two support plates and is fixed with a connecting seat. One end of the connecting seat fixes the stop plate through a connecting clamping plate.

[0015] By adopting the above technical solution, the support plates play a role in supporting and fixing the stop cylinder. The connecting seat can connect the telescopic end of the stop cylinder with other structures, acting as a connecting end plate, and at the same time can realize the transmission of force.

[0016] Preferably, a plurality of I-shaped slide rails are equally divided and fixedly arranged at the lower end of the base. I-shaped slide sleeves for sliding and limiting on the I-shaped slide rails are respectively fixed at the upper ends of the two upper clamping plates.

[0017] By adopting the above technical solution, the I-shaped slide rails move in the I-shaped slide sleeves to play a connecting role, and at the same time prevent the upper clamping plates from separating from the base, thereby forming a clamping structure.

[0018] Preferably, angle plates for strengthening the structure are respectively fixedly arranged at the joints of the upper clamping plates and the side clamping plates.

[0019] By adopting the above technical solution, the setting of the angle plates can increase the connection stability and structural strength between the upper clamping plates and the side clamping plates.

[0020] Preferably, a fixing groove is opened on one side of the stop plate. A connecting column is fixedly arranged at the bottom of the fixing groove on one side of the bottom plate. A hemisphere is fixedly arranged at the lower end of the connecting column.

[0021] By adopting the above technical solution, the width of the fixing groove is greater than the diameter of the rotating rod, and the rotating rod is located directly below the fixing groove. The surface of the hemisphere is smooth and is provided with grease.

[0022] Preferably, coupling shafts are fixedly arranged on both sides of the fixing groove where the movable notch is located. The coupling shafts and the stop plate are arranged staggeredly, and a worm gear is sleeved and fixed at one end of each coupling shaft.

[0023] By adopting the above technical solution, the movable notch is arranged as a rectangle. At the same time, the coupling shafts are made of steel. The staggered arrangement of the coupling shafts and the stop plate can avoid interference between the two.

[0024] Preferably, two fixing seats are fixedly arranged on one side of the supporting bottom plate where the longitudinal groove is located. A connecting shaft movably penetrates between the two fixing seats, and one end of the connecting shaft extends to the worm gear.

[0025] By adopting the above technical solution, the fixing seats play a role in supporting the connecting shaft. At the same time, the connecting shaft is limited by bearings to prevent sliding, which may cause unstable connection.

[0026] Preferably, a worm is fixedly arranged at one end of the connecting shaft located at the worm gear and meshes with the worm gear.

[0027] By adopting the above technical solution, the connecting shaft transmits the force to the worm, and the worm transmits the force to the worm gear, thereby realizing the transmission of the force. Then, the supporting bottom plate is driven to rotate by the coupling shaft.

[0028] Preferably, a rotating rod is sleeved and fixed on the surface of the connecting shaft between the two fixing seats. A spiral groove for the hemisphere to insert and drive the rotating rod to rotate is arranged on the surface of the rotating rod. The hemisphere drives the rotating rod to rotate, causing the supporting bottom plate to rotate 90 degrees.

[0029] By adopting the above technical solution, the spiral groove is spiral and its surface is smooth, thereby reducing the friction with the hemisphere. When the hemisphere slides inside the spiral groove, the linear motion can be converted into rotational motion, thereby driving the worm to rotate, and then causing the supporting bottom plate to rotate to achieve the effect of supporting and releasing the plastic suction tray.

[0030] In summary, the present application includes at least one of the following beneficial technical effects:

[0031] 1. By inserting the stop plate into the movable notch of the supporting bottom plate, the supporting bottom plate can be restricted to be perpendicular to the side clamping plate by 90 degrees, thereby realizing the loading of the plastic suction tray. When the stop plate is removed from the movable notch, the supporting bottom plate loses its restriction and rotates under the gravity of several plastic suction trays, and then several plastic suction trays are placed in the cardboard box. Therefore, when the gap between the plastic suction tray and the inner wall of the cardboard box is small, the device can still be used normally. At the same time, several plastic suction trays can be placed at one time, greatly improving the working efficiency;

[0032] 2. Drive the hemisphere to rotate in the spiral groove by means of the stop plate, thereby driving the rotating rod and the connecting shaft to rotate, and then driving the supporting bottom plate to rotate through the meshing of the worm and worm gear. Therefore, the two-way movement of the stop plate can drive the supporting bottom plate to rotate between 0 degrees and 90 degrees, thereby realizing the lifting and releasing of the plastic suction tray. At the same time, the characteristics of the worm and worm gear are used to further lock the supporting bottom plate, making the structure more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is the overall schematic diagram of the present application;

[0034] Figure 2 It is the internal schematic diagram of the mounting bracket of the present application;

[0035] Figure 3 It is the connection schematic diagram of the drive gear, rack and upper clamping plate of the present application;

[0036] Figure 4 It is the connection schematic diagram of the stop cylinder, connection seat and connection clamping plate of the present application;

[0037] Figure 5 It is the separation schematic diagram of the side clamping plate, longitudinal groove and stop plate of the present application;

[0038] Figure 6 It is the movable connection schematic diagram of the upper clamping plate and the supporting bottom plate of the present application;

[0039] Figure 7 For the present application Figure 6 The enlarged schematic diagram at position A in;

[0040] Figure 8 It is the connection schematic diagram of the stop plate, connecting column, hemisphere, spiral groove and rotating rod of the present application.

[0041] Reference numerals: 100, cardboard box; 200, plastic suction tray; 300, mounting bracket;

[0042] 400, clamping mechanism; 401, side clamping plate; 402, side middle plate; 403, supporting bottom plate; 404, upper clamping plate; 405, corner plate; 406, I-shaped sliding sleeve; 407, I-shaped sliding rail; 408, connecting shaft; 409, rack; 410, drive gear; 411, reduction motor;

[0043] 412, stop plate; 413, longitudinal groove; 414, movable notch; 415, worm; 416, worm gear; 417, connecting shaft; 418, fixed seat; 419, rotating rod; 420, spiral groove;

[0044] 421, hemisphere; 422, connecting column; 423, fixed groove;

[0045] 500, Stopping cylinder;

[0046] 600, Support plate;

[0047] 700, Connecting splint;

[0048] 800, Connecting seat;

[0049] 900, Base. Detailed implementation mode

[0050] The following further elaborates on this application in conjunction with the attached Figures 1 - 8 for a more detailed description of this application.

[0051] The embodiment of this application discloses a packing fixture.

[0052] Embodiment 1

[0053] Referring to Figure 1 , a packing fixture includes a mounting bracket 300 fixedly arranged at the upper end of a base 900; the mounting bracket 300 completely encloses a reduction motor 411 and there are also openings on the surface of the mounting bracket 300 for the passage of connection wires such as those of the reduction motor 411. The mounting bracket 300 can also be connected to an external manipulator, so that the mounting bracket 300 can be controlled by the manipulator to drive a clamping mechanism 400 to move, thereby placing a plurality of blister trays 200 inside a carton 100 through a side splint 401.

[0054] Referring to Figures 1 - 4 , a clamping mechanism 400 for clamping a plurality of stacked blister trays 200 is arranged at the lower end of the base 900; the clamping mechanism 400 includes upper splints 404 slidably arranged on both sides of the lower end of the base 900, and the structure of the upper splints 404 is as Figure 3 shown and the two upper splints 404 can be inserted into each other. Angle plates 405 are fixedly arranged at the connection positions of the upper splints 404 and the side splint 401, and the angle plates 405 are used to strengthen the connection structure between the upper splints 404 and the side splint 401. Rack bars 409 are fixed on one side of the upper ends of the two upper splints 404, and the serrated ends of the two rack bars 409 face each other. The upper end of the base 900 is fixedly connected to the mounting end of the reduction motor 411, and the output shaft of the reduction motor 411 movably penetrates the base 900 and is fixedly keyed to a driving gear 410. The two ends of the driving gear 410 are meshed with the two rack bars 409 to drive the two rack bars 409 to move. A plurality of I-shaped slide rails 407 are equally divided and fixedly arranged at the lower end of the base 900, two I-shaped slide rails 407 are fixed at the lower end of each base 900, and the I-shaped slide rails 407 at the lower ends of the two bases 900 are arranged in a staggered manner. I-shaped sliding sleeves 406 are respectively fixed at the upper ends of the two upper splints 404, and the I-shaped slide rails 407 are slidably arranged inside the I-shaped sliding sleeves 406 for limiting.

[0055] The user can control the operation of the reduction motor 411 through remote control or can make the reduction motor 411 powered on and operate through a preset program. The controller makes the reduction motor 411 operate and drives the driving gear 410 to rotate. The driving gear 410 drives the two racks 409 to move, thereby driving the two upper clamping plates 404 to move towards or away from each other. At the same time, the I-shaped slide rail 407 will slide inside the I-shaped sliding sleeve 406 to achieve the function of longitudinally limiting the upper clamping plate 404. Therefore, the moving distances of the two upper clamping plates 404 are both controlled by the reduction motor 411.

[0056] Referring to Figure 2 , at the corresponding positions on both sides of the upper end of the base 900 and the stop plate 412, a stop cylinder 500 for driving the longitudinal movement of the stop plate 412 is fixedly provided. The fixed ends on both sides of the stop cylinder 500 are fixed with support plates 600. The upper end of the base 900 is fixed to the lower end of the support plates 600. The telescopic end of the stop cylinder 500 is fixed with a connecting seat 800. The connecting seat 800 is located between the two support plates 600. One end of the connecting seat 800 is provided with two connecting clamping plates 700. One connecting clamping plate 700 is fixed to the connecting seat 800, and the other connecting clamping plate 700 is arranged on the other side of the stop plate 412, so as to form a sandwich between the two connecting clamping plates 700 and the stop plate 412. Subsequently, the stop plate 412 is fixed by means of bolt threaded connection.

[0057] The device further includes a gas station for supplying gas to the stop cylinder 500, as well as an air slip ring and an electric slip ring that can operate when the stop cylinder 500 and the reduction motor 411 rotate. The installation methods of the air slip ring and the electric slip ring are prior arts and can be adaptively installed according to the structure of the device to achieve the stable operation of the device. The telescopic movement of the telescopic end of the stop cylinder 500 can drive the longitudinal movement of the connecting seat 800, and then drive the connecting clamping plates 700 and the stop plate 412 to move longitudinally through the connecting seat 800. The stop cylinder 500 is used as a power source.

[0058] Referring to Figures 2 - 5, at the mutually remote ends of the two upper clamping plates 404, side clamping plates 401 are fixedly provided. The side clamping plates 401 are arranged in a long strip shape and have a length greater than the depth of the carton 100. The width of the side clamping plates 401 is less than the width of the carton 100. Longitudinal grooves 413 are formed in the middle parts of the outer sides of the two side clamping plates 401. A stop plate 412 is slidably arranged in the longitudinal grooves 413 to achieve limiting. A limiting side middle plate 402 for the stop plate 412 is fixedly provided outside the longitudinal grooves 413. The side middle plate 402 matches the side clamping plates 401 in height. The upper end of the stop plate 412 extends out of the longitudinal grooves 413. When the lower end of the connecting clamping plate 700 contacts the upper end of the side clamping plate 401, the lower end of the stop plate 412 is inserted into the movable notch 414 and extends to the lower end face of the movable notch 414. At the lower ends of the two side clamping plates 401, there are hinge-connected bottom support plates 403 for supporting the plastic suction tray 200. The side clamping plates 401 and the bottom support plates 403 are hinge-connected through a rotating shaft. At the same time, the two ends of the bottom support plates 403 located outside are provided with rounded corners.

[0059] When the telescopic end of the stop cylinder 500 drives the stop plate 412 to move inside the longitudinal groove 413, it can be inserted into the movable notch 414 of the bottom support plate 403, and one side of the stop plate 412 abuts against one side of the movable notch 414 to achieve the limiting effect. It should be noted that when the bottom support plate 403 is at a certain distance from the bottom end of the carton 100, the stop plate 412 is withdrawn from the movable notch 414 under the action of the stop cylinder 500, so that the bottom support plate 403 is free and then rotates 90 degrees under the gravity of the plastic suction tray 200 to make the plastic suction tray 200 fall into the carton 100. Subsequently, the side clamping plates 401 drive the bottom support plates 403 to move out of the carton 100. At this time, the stacked plastic suction trays 200 are placed on a placing table with a diameter smaller than the distance between the two bottom support plates 403. At this time, the plastic suction trays 200 are located between the two side clamping plates 401. When the two side clamping plates 401 continue to descend, there are pushing devices on both sides of the placing table to change the two bottom support plates 403 from a vertical state to a horizontal state, so as to achieve the ability to lift the plastic suction trays 200.

[0060] Refer to Figure 7 , a movable notch 414 is formed in the middle of the bottom support plate 403. One end of the stop plate 412 can be inserted into the movable notch 414. When the stop plate 412 is inserted into the movable notch 414, the two stop plates 412 are opposite and in a horizontal state, and one side of the stop plate 412 abuts against one side of the movable notch 414 for limiting.

[0061] Through the side wall of the movable notch 414, the stop plate 412 can be mutually limited, so that the two bottom support plates 403 and the stop plate 412 are in a vertical state, thereby realizing the support of the plastic suction tray 200.

[0062] Embodiment 2

[0063] Refer toFigures 6 - 8 , which is different from Embodiment 1 in that a long strip-shaped fixing groove 423 is formed on one side of the stop plate 412. The fixing groove 423 is through at one end of the supporting bottom plate 403. A cylindrical connecting column 422 is fixedly provided on one side of the bottom of the fixing groove 423 and located on the supporting bottom plate 403. A hemisphere 421 is fixedly provided at the lower end of the connecting column 422. The surface of the hemisphere 421 is set to be smooth. Connecting shafts 408 are fixedly provided on both sides of the fixing groove 423 where the movable notch 414 is located. The connecting shafts 408 pass through the perforations where the side clamping plate 401 is connected to the supporting bottom plate 403 and are welded and fixed. The connecting shafts 408 and the stop plate 412 are arranged staggeredly. A worm gear 415 is sleeved and fixed at one end of the connecting shaft 408. Two fixing seats 418 are fixedly provided on one side of the supporting bottom plate 403 where the longitudinal groove 413 is located. A connecting shaft 417 movably penetrates between the two fixing seats 418. The connecting shaft 417 is installed with the fixing seats 418 through bearings. The installation method of the bearings is not shown in the figure and is a conventional prior art. One end of the connecting shaft 417 extends to the position of the worm gear 415. A worm 416 is fixedly provided at one end of the connecting shaft 417 located at the worm gear 415. The worm 416 meshes with the worm gear 415. A rotating rod 419 is sleeved and fixed on the surface of the connecting shaft 417 between the two fixing seats 418. A spiral groove 420 is arranged on the surface of the rotating rod 419. The hemisphere 421 is inserted into the spiral groove 420 and drives the rotating rod 419 to rotate. When the hemisphere 421 moves from one end of the spiral groove 420 to the other end of the spiral groove 420, it just drives the rotating rod 419 to rotate so that the supporting bottom plate 403 rotates 90 degrees from the vertical state.

[0064] It should be noted that when the hemisphere 421 moves in the spiral groove 420, it can drive the rotating rod 419 to rotate smoothly through the spiral groove 420. Therefore, the spiral angle and length of the spiral groove 420 need to be preset according to the different sizes of the present application.

[0065] Under normal conditions, when the supporting bottom plate 403 is located at the lower end of the blister tray 200, at this time, the stop plate 412 moves downward, and at the same time drives the connecting column 422 to move, thereby driving the hemisphere 421 to move inside the spiral groove 420. This setting can convert the linear movement into a rotational movement, thereby driving the rotating rod 419 and the connecting shaft 417 to rotate. The connecting shaft 417 drives the worm 416 to rotate, thereby driving the worm gear 415 to rotate. The worm gear 415 drives the supporting bottom plate 403 to rotate through the connecting shaft 408 until the supporting bottom plate 403 rotates 90 degrees and is perpendicular to the side clamping plate 401. At the same time, the stop plate 412 also inserts into the movable notch 414 to limit the supporting bottom plate 403. Further limiting can also be achieved under the characteristics of the worm gear 415 and the worm 416 itself. When the structure of this embodiment is adopted, there is no need to use a pushing device to move the supporting bottom plate 403. When the supporting bottom plate 403 needs to be flush with the side clamping plate 401, it can be achieved by moving the stop plate 412 in the reverse direction.

[0066] The implementation principle of a packing fixture in an embodiment of this application is as follows:

[0067] The robotic arm drives the movement of the mounting bracket 300, thereby realizing the picking and storing of the blister tray 200. The blister trays 200 are stacked on the placement table. Subsequently, the reduction motor 411 drives the movement of the rack 409 through the driving gear 410, thereby causing the two upper clamping plates 404 to move in opposite directions, increasing the distance between the side clamping plates 401, and positioning the blister tray 200 in the middle of the two side clamping plates 401. At the same time, the bottom support plate 403 is positioned below the blister tray 200.

[0068] Subsequently, the stop cylinder 500 operates to move the stop plate 412 downward. The stop plate 412 drives the rotation of the rotating rod 419 through the connecting column 422 and the hemisphere 421, thereby causing the connecting shaft 417 to rotate. The connecting shaft 417 drives the rotation of the worm 416 and the worm gear 415, enabling the bottom support plate 403 to rotate 90 degrees, making contact with and supporting the bottom of the blister tray 200. During this process, one end of the stop plate 412 is inserted into the movable notch 414 of the bottom support plate 403, thereby realizing limit support.

[0069] Since the side clamping plates 401 and the bottom support plate 403 are relatively thin, this device can be used for loading cartons 100 and blister trays 200 in narrow spaces.

[0070] The above are only optional embodiments of the present disclosure and are not intended to limit the present disclosure. For those skilled in the art, various modifications and changes can be made to the present disclosure. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure shall be included within the protection scope of the present disclosure.

Claims

1. A packing fixture, characterized in that: It comprises a mounting bracket (300) fixedly mounted on the upper end of the base (900); A clamping mechanism (400) for clamping a plurality of stacked blister trays (200) is provided at the lower end of the base (900); The clamping mechanism (400) comprises upper clamping plates (404) slidably arranged on both sides of the lower end of the base (900), racks (409) being fixed to one side of the upper ends of the two upper clamping plates (404), and a reduction motor (411) fixed to the upper end of the base (900) drives the two racks (409) to move via a driving gear (410); A side clamping plate (401) is fixedly provided at one end of the two upper clamping plates (404) away from each other, a stop plate (412) is longitudinally slidably provided at the middle of the outer sides of the two side clamping plates (401), a stop cylinder (500) for driving the stop plate (412) to move longitudinally is fixedly provided at positions corresponding to the stop plate (412) on both sides of the upper end of the base (900), and the lower ends of the two side clamping plates (401) are hingedly connected with a bottom support plate (403) for supporting the blister tray (200); A movable notch (414) is provided in the middle of the bottom support plate (403) for inserting one end of the stop plate (412), and when the stop plate (412) is inserted into the movable notch (414), the two stop plates (412) are opposite to each other and in a horizontal state, and one side of the stop plate (412) abuts against and limits the position of one side of the movable notch (414); A longitudinal groove (413) for limiting the sliding position of the stop plate (412) is provided at the middle part of the outer sides of the two side clamping plates (401); a side middle plate (402) for limiting the position of the stop plate (412) and matching the height of the side clamping plates (401) is fixedly provided at the outer side of the longitudinal groove (413); and the longitudinal groove (413) extends from the upper end of the stop plate (412); A fixing groove (423) is formed on one side of the stop plate (412); a connecting column (422) is fixedly provided at the bottom of the fixing groove (423) located on one side of the supporting plate (403); and a hemisphere (421) is fixedly provided at the lower end of the connecting column (422); The movable notch (414) is located on both sides of the fixed groove (423) and is fixedly provided with a connecting shaft (408), the connecting shaft (408) and the stop plate (412) are arranged alternately, and a worm gear (415) is sleeved and fixedly provided on one end of the connecting shaft (408); The longitudinal groove (413) is located on one side of the supporting bottom plate (403) and is fixed with two fixing seats (418). A connecting shaft (417) movably penetrates between the two fixing seats (418), and one end of the connecting shaft (417) extends to the worm gear (415); A worm (416) meshing with the worm wheel (415) is fixedly disposed at one end of the connecting shaft (417) located at the worm wheel (415); a rotating rod (419) is sleeved and fixedly disposed on the surface of the connecting shaft (417) located between the two fixing seats (418); a spiral groove (420) is disposed on the surface of the rotating rod (419) for inserting a hemisphere (421) and driving the rotating rod (419) to rotate; the hemisphere (421) drives the rotating rod (419) to rotate so that the supporting plate (403) rotates 90 degrees.

2. A packing fixture according to claim 1, characterized in that: Support plates (600) fixed to the base (900) are fixed on both sides of the stop cylinder (500); the telescopic end of the stop cylinder (500) is located between the two support plates (600) and is fixed with a connecting seat (800); one end of the connecting seat (800) fixes the stop plate (412) via a connecting clamp (700).

3. A packing fixture according to claim 1, characterized in that: A plurality of I-shaped slide rails (407) are equally spaced and fixedly disposed at the lower end of the base (900), and I-shaped slide sleeves (406) that slide and limit with the I-shaped slide rails (407) are respectively fixedly disposed at the upper ends of the two upper clamping plates (404).

4. A packing fixture according to claim 1, characterized in that: A corner plate (405) for strengthening the structure is fixedly provided at the connection between the upper clamping plate (404) and the side clamping plate (401).

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