Automatic boxing device for heavy objects

Abstract

The invention relates to the technical field of heavy object loading, and discloses an automatic heavy object boxing device which comprises a clamping table, a guide wheel is fixedly connected to the top end of the clamping table, a supporting frame is arranged below the clamping table, a hoisting tightening mechanism is arranged above the clamping table, and a lubricating mechanism is arranged on the side face of the hoisting tightening mechanism. The bottom end of the supporting frame is fixedly connected with a retracting and releasing mechanism, a tray is arranged on the bottom side of the retracting and releasing mechanism, the hoisting and tightening mechanism comprises an inclined groove frame, the inclined groove frame is fixedly connected to the top end of each clamping table, the side face of the inclined groove frame is slidably connected with two sliding frame blocks, and a connecting block shaft is fixedly connected between the sliding frame blocks; the outer surface of the connecting block shaft is rotationally connected with a lifting shaft rod, the end, away from the connecting block shaft, of the lifting shaft rod is hinged to a mounting lifting plate, the mounting lifting plate moves upwards, a driving structure is simplified, clamping movement is rapidly achieved, and the carrying efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of heavy object loading, and in particular to a heavy object automatic box loading device. Background Art

[0002] The design and implementation of the automatic packing system needs to be optimized based on factors such as the nature of the items, the design of the box, the packing speed and efficiency requirements. It improves the packing efficiency and reduces the risk of human error and damage. It is suitable for production environments that require large-scale automated packing.

[0003] The patent with announcement number CN104121457 for heavy object loading discloses a heavy object support mechanism and a heavy object loading device using the heavy object support mechanism. When a heavy object is supported by a spring member disposed between a fixed frame and a supporting frame, the elastic force of the spring member is transmitted to a driven member of the supporting frame, a first and a second cam surface are provided to restrict the movement of the driven member, and a loading member is pressed against the driven member to these cam surfaces, so that the first cam surface generates a friction force that reduces the influence of the heavy object, and the second cam surface generates a friction force that reduces the influence of the elastic force, so that the above-mentioned driven member can move in the direction of the spring expansion and contraction and in the direction intersecting with it at the same time, and the engagement of the driven member and the cam surface is controlled. This patent also has the problem of high cost of using the transmission structure and low efficiency, and for this purpose, a device for automatically putting heavy objects into a box is designed. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a device for automatically putting heavy objects into a box in view of the deficiencies in the above-mentioned prior art.

[0005] The top of the support frame is provided with a lifting mechanism, and the lifting mechanism is a bottom surface of the support frame, and the lifting mechanism is a bottom surface of the support frame. The lifting of the lifting platform is simplifies and the lifting of the lifting platform is improved. The lifting platform is simplifies and the lifting of the lifting platform is improved. The lifting platform is simplifies and the lifting of the lifting platform is improved.

[0006] Furthermore, the lubrication mechanism includes an oil filling chamber, the oil filling chamber is fixedly connected to an end of the guide frame away from the connecting rod guide rod, the filling oil chamber is slidably connected with a force rod, the end of the force rod away from the guide frame is fixedly connected with a pressure plate, the end of the filling oil chamber away from the guide frame is fixedly connected with an oil sealing cap, the axis of the oil sealing cap is fixedly connected with a single-outlet valve, the side of the single-outlet valve is fixedly connected with an oil delivery pipe, the top surface of the oil filling chamber is fixedly connected with a single-inlet valve, the top of the single-inlet valve is fixedly connected with an oil tank, the force rod extends to the inside of the guide frame and contacts with the end of the connecting rod guide rod, a spring is provided on the side of the pressure plate, and the two ends of the spring are respectively fixedly connected to the pressure plate and the oil sealing cap, when the two clamping platforms approach each other, the guide frame on the clamping platform simultaneously approaches the connecting rod guide rod to squeeze the spring, and through the connecting rod The rod guide rod pushes the force-bearing rod to be compressed. When the force-bearing rod is compressed, it pushes the pressure plate to squeeze the spring, thereby reducing the gap between the pressure plate and the oil sealing cover. At this time, the lubricating oil filled between the pressure plate and the oil sealing cover is transported to the oil pipe through the single outlet valve, and the structure between the guide frame and the connecting rod guide rod is lubricated through the oil pipe to prevent wear between the guide frame and the connecting rod guide rod and affect the closeness of the two clamping tables, thereby improving the service life of the parts. At the same time, when the force-bearing rod is no longer compressed, the spring between the pressure plate and the oil sealing cover restores its elastic force, and allows the pressure plate to reset and push the slide block. At this time, there is a negative pressure between the pressure plate and the oil sealing cover, and the negative pressure allows the oil in the oil tank to enter between the pressure plate and the oil sealing cover through the single inlet valve, and the spring reset pushes the pressure plate to generate negative pressure between the pressure plate and the oil sealing cover, thereby automatically filling the lubricating oil in the oil tank and improving the lubrication effect.

[0007] Furthermore, the outer side surface of the connecting block shaft is fixedly connected to a steel cable, the bottom end of the steel cable is provided with a winding wheel, the axis of the winding wheel is fixedly connected to a telescopic sleeve rod, the axis of the telescopic sleeve rod is slidably connected to two spline rods, the retracting and releasing mechanism includes a positioning end shell, the positioning end shell is fixedly connected to the bottom end of the support frame, the interior of the positioning end shell is rotatably connected to a screw shaft, the outer side surface of the screw shaft is fixedly connected to a coarse-toothed shaft, the side surface of the coarse-toothed shaft is meshingly connected to an arc rack, the side of the arc rack away from the coarse-toothed shaft is fixedly connected to an arc hook plate, and the arc hook plate away from the arc One side of the rack is meshed with two fine-toothed shafts, and a short guide rod is fixedly connected to the interior of the positioning end shell, and the outer side of the short guide rod is slidably connected to the limiting rod. A side groove is provided on the side of the arc hook plate close to the limiting rod, and the screw shaft passes through one side of the positioning end shell to the other side. The fine-toothed shaft is rotatably connected to the positioning end shell, the limiting rod is threadedly connected to the screw shaft, and the spline rod is fixedly connected to the screw shaft. A torsion spring is provided on the side of the end of the coarse-toothed shaft away from the limiting rod, and the two ends of the torsion spring are respectively fixedly connected to the coarse-toothed shaft and the interior of the positioning end shell. When the connecting block shaft is pulled The movement of the connecting block shaft will drive the steel cable to pull the winding wheel around the guide wheel to rotate, and the rotation of the winding wheel will drive the spline rod and the telescopic sleeve rod to rotate. When the support frames on both sides are close to each other, the spline rods on both sides will shrink into the telescopic sleeve rod. Through the above steps, the spline rod will drive the screw shaft to rotate when it rotates, so that the rotation of the screw shaft drives the outer coarse-toothed shaft to make the meshing arc rack move. When the coarse-toothed shaft rotates, the coarse-toothed shaft will drive the connected torsion spring to twist, and then the arc hook plate connected to the arc rack will extend downward to locate the bottom of the end shell. In this process, the movement of the arc hook plate will mesh with the fine-toothed shaft, causing the fine-toothed shaft to rotate and form an arc The hook plate provides support, so that the arc hook plate can be extended to hook the side of the pallet, and the arc hook plate can be retracted to support the heavy objects on the pallet and place them in the wooden box. When the arc hook plate is retracted into the positioning end shell, the external motor of the clamping table is used to rotate and drive the two places away from the support frame. The support frames on both sides are driven by threaded rods using existing technology, so that the support frames are no longer aligned with the sides of the pallet, so that the arc hook plate no longer hooks the pallet and is completely detached, so that the arc hook plate can be detached upward from the gap between the box and the heavy object. After placing the heavy object in the wooden box, the step of untying the lifting rope is required, which can save time and improve loading efficiency.

[0008] The present invention adopts the above technical solution to bring the following beneficial effects:

[0009] 1. The automatic box-putting device for heavy objects is provided with an inclined slot frame, a slide block, a connecting block shaft, a hanging shaft rod, an installation hanger plate, a guide frame, a connecting rod guide rod, and a guide wheel. By installing the hanger plate to move upward, the clamping table uses gravity to make the inclined slot frames approach each other along the slide block, so as to adjust the interval between the clamping tables, and the movement of the clamping table drives the connected support frame to move close to the pallet to achieve clamping, so that the upward movement of the installation hanger plate simplifies the driving structure to quickly achieve clamping movement and improve the handling efficiency.

[0010] 2. The device for automatically putting heavy objects into the box is provided with an oil filling chamber, a force-bearing rod, a pressure plate, an oil sealing cover, a single outlet valve, an oil pipeline, a single inlet valve, and an oil tank. The pressure plate is reset to push the slide block. At this time, there is a negative pressure between the pressure plate and the oil sealing cover. The negative pressure allows the oil in the oil tank to enter between the pressure plate and the oil sealing cover through the single inlet valve. The spring is used to reset and push the pressure plate to generate negative pressure between the pressure plate and the oil sealing cover, so that the lubricating oil in the oil tank is automatically filled to improve the lubrication effect.

[0011] 3. The device for automatically placing heavy objects into boxes is provided with a positioning end shell, a screw shaft, a coarse-toothed shaft, a short guide rod, a limiting rod, an arc hook plate, an arc rack, a fine-toothed shaft, and a side groove. The arc hook plate is retracted to support the heavy objects on the pallet and place them in the wooden box, so that the support frame is no longer aligned with the side of the pallet, and the arc hook plate is no longer hooked on the pallet and is completely detached, so that the arc hook plate can be detached upward from the gap between the box and the heavy objects. After placing the heavy objects into the wooden box, there is no need to untie the lifting rope, which can save time and improve loading efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall front three-dimensional structure of the present invention;

[0013] Figure 2 It is a structural schematic diagram of the integral lifting and tightening mechanism of the present invention;

[0014] Figure 3 It is a schematic diagram of the structure inside the integral guide frame of the present invention;

[0015] Figure 4 It is a structural schematic diagram of the overall lubrication mechanism of the present invention;

[0016] Figure 5 It is a structural schematic diagram of the integral steel cable connection of the present invention;

[0017] Figure 6 For the present invention as a whole Figure 5 A is a schematic diagram of the enlarged structure of the middle part;

[0018] Figure 7 It is a structural schematic diagram of the top of the integral support frame of the present invention;

[0019] Figure 8 It is a schematic diagram of the internal structure of the integral positioning end shell of the present invention.

[0020] In the figure: 1. Clamping table; 2. Support frame; 3. Pallet; 4. Guide wheel; 5. Lifting and tightening mechanism; 51. Inclined slot frame; 52. Slide block; 53. Connecting block shaft; 54. Lifting shaft rod; 55. Installing hanging plate; 56. Guide frame; 57. Connecting rod guide rod; 58. Guide wheel; 6. Lubricating mechanism; 61. Filling oil chamber; 62. Force rod; 63. Pressure plate; 64. Oil sealing cover; 65. Single outlet valve; 66. Oil pipeline; 67. Single inlet valve; 68. Oil tank; 7. Retracting and releasing mechanism; 71. Positioning end shell; 72. Screw shaft; 73. Coarse tooth shaft; 74. Short guide rod; 75. Limit rod; 76. Arc hook plate; 77. Arc rack; 78. Fine tooth shaft; 79. Side groove; 8. Steel cable; 9. Spline rod; 10. Telescopic sleeve rod; 11. Winding wheel. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figure 1-Figure 8 , an embodiment of the present invention is: a heavy object automatic box-in device, comprising a clamping platform 1, a guide wheel 4 is fixedly connected to the top of the clamping platform 1, a support frame 2 is arranged below the clamping platform 1, a hoisting and tightening mechanism 5 is arranged above the clamping platform 1, a lubrication mechanism 6 is arranged on the side of the hoisting and tightening mechanism 5, a retracting mechanism 7 is fixedly connected to the bottom end of the support frame 2, a tray 3 is arranged on the bottom side of the retracting mechanism 7, the hoisting and tightening mechanism 5 comprises an inclined slot frame 51, the inclined slot frame 51 is fixedly connected to the top of each clamping platform 1, two slide blocks 52 are slidably connected to the side of the inclined slot frame 51, a connecting block shaft 53 is fixedly connected between the slide blocks 52, the outer surface of the connecting block shaft 53 is rotatably connected to a hanging shaft rod 54, and the end of the hanging shaft rod 54 away from the connecting block shaft 53 is hingedly connected to a mounting hanging shaft Plate 55, guide frames 56 are provided on the left and right sides of the inclined slot frame 51, and the inner wall of the guide frame 56 is slidably connected with a connecting rod guide rod 57, and guide wheels 58 are installed on the upper and lower sides of the connecting rod guide rod 57. The guide frame 56 is fixedly connected to the top surface of the clamping platform 1, and a spring is provided on the outer side of the connecting rod guide rod 57, and the two ends of the spring are respectively fixedly connected to the connecting rod guide rod 57 and the guide frame 56. By installing the hanging plate 55 to move upward, the clamping platform 1 uses gravity to make the inclined slot frames 51 approach each other along the slide block 52, so as to adjust the interval between the clamping platforms 1, and the movement of the clamping platform 1 drives the connected support frame 2 to move close to the pallet 3 to achieve clamping, thereby simplifying the driving structure by installing the hanging plate 55 to move upward and quickly achieve clamping movement, thereby improving the handling efficiency.

[0023] The lubrication mechanism 6 includes an oil filling chamber 61, which is fixedly connected to the end of the guide frame 56 away from the connecting rod guide rod 57, a force rod 62 is slidably connected inside the oil filling chamber 61, and a pressure plate 63 is fixedly connected to the end of the force rod 62 away from the guide frame 56, an oil sealing cover 64 is fixedly connected to the end of the oil filling chamber 61 away from the guide frame 56, a single outlet valve 65 is fixedly connected to the axis of the oil sealing cover 64, and an oil delivery pipe 66 is fixedly connected to the side of the single outlet valve 65, a single inlet valve 67 is fixedly connected to the top surface of the oil filling chamber 61, and an oil tank 68 is fixedly connected to the top of the single inlet valve 67. The rod 62 extends to the inside of the guide frame 56 and contacts with the end of the connecting rod guide rod 57. A spring is arranged on the side of the pressure plate 63, and the two ends of the spring are respectively fixedly connected to the pressure plate 63 and the oil sealing cover 64, so that the pressure plate 63 is reset to push the slide block 52. At this time, there is a negative pressure between the pressure plate 63 and the oil sealing cover 64. The negative pressure allows the oil in the oil tank 68 to enter between the pressure plate 63 and the oil sealing cover 64 through the single inlet valve 67. The spring is used to reset and push the pressure plate 63 to generate negative pressure between the pressure plate 63 and the oil sealing cover 64, so that the lubricating oil in the oil tank 68 is automatically filled to improve the lubrication effect.

[0024] The outer side surface of the connecting block shaft 53 is fixedly connected to a steel cable 8, and a winding wheel 11 is provided at the bottom end of the steel cable 8. A telescopic sleeve rod 10 is fixedly connected to the axis of the winding wheel 11, and two spline rods 9 are slidably connected to the axis of the telescopic sleeve rod 10. The retracting mechanism 7 includes a positioning end shell 71, and the positioning end shell 71 is fixedly connected to the bottom end of the support frame 2. The interior of the positioning end shell 71 is rotatably connected to a screw shaft 72, and the outer side surface of the screw shaft 72 is fixedly connected to a coarse-toothed shaft 73, and the side of the coarse-toothed shaft 73 is meshingly connected to an arc rack 77, and the side of the arc rack 77 away from the coarse-toothed shaft 73 is fixedly connected to an arc hook plate 76, and the side of the arc hook plate 76 away from the arc rack 77 is meshingly connected to two The outer side of the short guide rod 74 is slidably connected to the limiting rod 75, and a side groove 79 is provided on the side of the arc hook plate 76 close to the limiting rod 75. The screw shaft 72 passes through one side of the positioning end shell 71 to the other side. The fine-toothed shaft 78 is rotatably connected to the positioning end shell 71, the limiting rod 75 is threadedly connected to the screw shaft 72, the spline rod 9 is fixedly connected to the screw shaft 72, and a torsion spring is provided on the side of the end of the coarse-toothed shaft 73 away from the limiting rod 75, and the two ends of the torsion spring are respectively fixedly connected to the coarse-toothed shaft 73 and the inside of the positioning end shell 71. When the connecting block shaft 53 is pulled, the movement of the connecting block shaft 53 will drive the steel The cable 8 pulls the winding wheel 11 around the guide wheel 4 to rotate, and the rotation of the winding wheel 11 drives the spline rod 9 and the telescopic sleeve rod 10 to rotate. When the support frames 2 on both sides are close to each other, the spline rods 9 on both sides will be retracted into the telescopic sleeve rod 10. Through the above steps, the spline rod 9 drives the screw shaft 72 to rotate when it rotates, so that the rotation of the screw shaft 72 drives the outer coarse tooth shaft 73 to make the meshing arc rack 77 move. When the coarse tooth shaft 73 rotates, the coarse tooth shaft 73 will drive the connected torsion spring to twist, and then the arc hook plate 76 connected to the arc rack 77 extends downward to the bottom of the positioning end shell 71. In this process, the movement of the arc hook plate 76 will mesh with the fine tooth shaft 78, causing the fine tooth shaft 78 to rotate. The hook plate 76 is also provided with support, so that the hook plate 76 is extended to hook the side of the pallet 3, and the hook plate 76 is retracted to support the heavy objects on the pallet 3 and place them in the wooden box. When the hook plate 76 is retracted into the positioning end shell 71, the external motor of the clamping table 1 is used to rotate and drive the two places away from the support frame 2. The support frames 2 on both sides are driven by threaded rods using existing technology, so that the support frame 2 is no longer aligned with the side of the pallet 3, so that the hook plate 76 no longer hooks the pallet 3 and is completely detached, so that the hook plate 76 can be detached upward from the gap between the box and the heavy object. After placing the heavy object in the wooden box, the step of untying the sling is required, which can save time and improve loading efficiency.

[0025] Working principle: The installation hanger plate 55 is fixed to the crane or lifting equipment in the site. When the crane or external lifting equipment pulls the installation hanger plate 55 upward, the installation hanger plate 55 rises and pulls the hanger shaft rod 54, and the hanger shaft rod 54 pulls the connected connecting block shaft 53 upward. At this time, the connecting block shaft 53 pulls the slide block 52 to move upward along the inclined slot frame 51. At this time, the bottom structure of the clamping platform 1, under the action of gravity, allows the inclined slot frame 51 to slide along the slide block 52 to make the two clamping platforms 1 close to each other, and at the same time, through The two clamping platforms 1 approach each other to drive the connected guide frame 56 to move, so that the guide frame 56 and the connecting rod guide rod 57 slide and squeeze the spring, and the hanging plate 55 moves upward, so that the clamping platform 1 uses gravity to make the inclined slot frame 51 approach each other along the slide block 52, so as to adjust the interval between the clamping platforms 1, and the movement of the clamping platform 1 drives the connected support frame 2 to move close to the tray 3 to achieve clamping, so that the upward movement of the hanging plate 55 simplifies the driving structure and quickly achieves the clamping movement, thereby improving the handling efficiency;

[0026] When the two clamping platforms 1 are close to each other, the guide frame 56 on the clamping platform 1 is close to the connecting rod guide rod 57 to squeeze the spring, and the connecting rod guide rod 57 pushes the force rod 62 to be compressed. When the force rod 62 is compressed, it pushes the pressure plate 63 to squeeze the spring, so that the gap between the pressure plate 63 and the oil sealing cover 64 is reduced. At this time, the lubricating oil filled between the pressure plate 63 and the oil sealing cover 64 is transported to the oil delivery pipe 66 through the single outlet valve 65, and the structure between the guide frame 56 and the connecting rod guide rod 57 is lubricated through the oil delivery pipe 66 to prevent the gap between the guide frame 56 and the connecting rod guide rod 57 Wear affects the approach of the two clamping tables 1, and the service life of the parts is improved. At the same time, when the force rod 62 is no longer under pressure, the spring between the pressure plate 63 and the oil sealing cover 64 restores its elastic force, and allows the pressure plate 63 to reset and push the slide block 52. At this time, there is a negative pressure between the pressure plate 63 and the oil sealing cover 64. The oil in the oil tank 68 enters between the pressure plate 63 and the oil sealing cover 64 through the single inlet valve 67 through the negative pressure. The spring reset pushes the pressure plate 63 to generate a negative pressure between the pressure plate 63 and the oil sealing cover 64, so that the lubricating oil in the oil tank 68 is automatically filled, thereby improving the lubrication effect.

[0027] When the connecting block shaft 53 is pulled, the movement of the connecting block shaft 53 will drive the steel cable 8 to pull the winding wheel 11 around the guide wheel 4 to rotate, and the rotation of the winding wheel 11 will drive the spline rod 9 and the telescopic sleeve rod 10 to rotate. When the support frames 2 on both sides are close to each other, the spline rods 9 on both sides will be retracted into the telescopic sleeve rod 10. Through the above steps, the spline rod 9 drives the screw shaft 72 to rotate when it rotates, so that the rotation of the screw shaft 72 drives the outer coarse-toothed shaft 73 to make the meshing arc rack 77 move. When the coarse-toothed shaft 73 rotates, the coarse-toothed shaft 73 will drive the connected torsion spring to twist, and then the arc hook plate 76 connected to the arc rack 77 extends downward to the bottom of the positioning end shell 71. In this process, the movement of the arc hook plate 76 will engage with the fine-toothed shaft 78. The meshing causes the fine-toothed shaft 78 to rotate and provide support for the arc hook plate 76, so that the arc hook plate 76 extends to hook the side of the pallet 3, and the arc hook plate 76 is used to extend and retract to support the heavy objects on the pallet 3 and place them in the wooden box. When the arc hook plate 76 shrinks into the positioning end shell 71, the external motor of the clamping table 1 rotates to drive the two places away from the support frame 2. The support frames 2 on both sides are driven by threaded rods using existing technology, so that the support frame 2 is no longer aligned with the side of the pallet 3, so that the arc hook plate 76 no longer hooks the pallet 3 and is completely detached, so that the arc hook plate 76 can be detached upward from the gap between the box and the heavy object. After placing the heavy object in the wooden box, the step of untying the sling can save time and improve loading efficiency.

[0028] The present invention provides a device for automatically placing heavy objects into a box. There are many methods and ways to implement the technical solution. The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be considered as the protection scope of the present invention. All components not specified in this embodiment can be implemented using existing technologies.

Claims

1. A device for automatically placing heavy objects into a box, comprising a clamping table (1), characterized in that: The top end of the clamping platform (1) is fixedly connected to a guide wheel (4), a support frame (2) is arranged below the clamping platform (1), a hoisting and tightening mechanism (5) is arranged above the clamping platform (1), a lubrication mechanism (6) is arranged on the side of the hoisting and tightening mechanism (5), the bottom end of the support frame (2) is fixedly connected to a retracting and releasing mechanism (7), and a tray (3) is arranged on the bottom side of the retracting and releasing mechanism (7).

2. The automatic box-entering device for heavy objects according to claim 1, characterized in that: The hoisting and tightening mechanism (5) comprises an inclined slot frame (51), the inclined slot frame (51) is fixedly connected to the top of each clamping platform (1), the inclined slot frame (51) is slidably connected to two slide blocks (52) on the side, a connecting block shaft (53) is fixedly connected between the slide blocks (52), the outer surface of the connecting block shaft (53) is rotatably connected to a suspension shaft rod (54), and the end of the suspension shaft rod (54) away from the connecting block shaft (53) is hingedly connected to a mounting suspension plate (55), and guide frames (56) are provided on the left and right sides of the inclined slot frame (51), and the inner wall of the guide frame (56) is slidably connected to a connecting rod guide rod (57), and guide wheels (58) are installed on the upper and lower sides of the connecting rod guide rod (57).

3. The automatic box-entering device for heavy objects according to claim 2, characterized in that: The guide frame (56) is fixedly connected to the top surface of the clamping platform (1), a spring is arranged on the outer side of the connecting rod guide rod (57), and two ends of the spring are respectively fixedly connected to the connecting rod guide rod (57) and the guide frame (56).

4. The automatic box-entering device for heavy objects according to claim 3 is characterized in that: The lubrication mechanism (6) comprises an oil filling chamber (61), wherein the oil filling chamber (61) is fixedly connected to one end of the guide frame (56) away from the connecting rod guide rod (57), a force-bearing rod (62) is slidably connected inside the oil filling chamber (61), and the end of the force-bearing rod (62) away from the guide frame (56) is fixedly connected to a pressure plate (63), and the end of the oil filling chamber (61) away from the guide frame (56) is fixedly connected to an oil sealing cover (64).

5. The automatic box-entering device for heavy objects according to claim 4, characterized in that: A single outlet valve (65) is fixedly connected to the axis of the oil sealing cover (64), an oil delivery pipe (66) is fixedly connected to the side of the single outlet valve (65), a single inlet valve (67) is fixedly connected to the top surface of the oil filling chamber (61), and an oil tank (68) is fixedly connected to the top of the single inlet valve (67).

6. The automatic box-entering device for heavy objects according to claim 5, characterized in that: The force-bearing rod (62) extends to the inside of the guide frame (56) and contacts the end of the connecting rod guide rod (57). A spring is arranged on the side of the pressure plate (63), and the two ends of the spring are respectively fixedly connected to the pressure plate (63) and the oil sealing cover (64).

7. The automatic box-entering device for heavy objects according to claim 6, characterized in that: The outer side surface of the connecting block shaft (53) is fixedly connected to a steel cable (8), the bottom end of the steel cable (8) is provided with a winding wheel (11), the axis of the winding wheel (11) is fixedly connected to a telescopic sleeve rod (10), and the axis of the telescopic sleeve rod (10) is slidably connected to two spline rods (9).

8. The automatic box-entering device for heavy objects according to claim 7, characterized in that: The retracting and releasing mechanism (7) comprises a positioning end shell (71), the positioning end shell (71) is fixedly connected to the bottom end of the support frame (2), the interior of the positioning end shell (71) is rotatably connected to a screw shaft (72), the outer side surface of the screw shaft (72) is fixedly connected to a coarse toothed shaft (73), the side surface of the coarse toothed shaft (73) is meshingly connected to an arc rack (77), the side of the arc rack (77) away from the coarse toothed shaft (73) is fixedly connected to an arc hook plate (76), and the side of the arc hook plate (76) away from the arc rack (77) is meshingly connected to two fine toothed shafts (78).

9. The automatic box-entering device for heavy objects according to claim 8, characterized in that: A short guide rod (74) is fixedly connected inside the positioning end shell (71), and the outer side surface of the short guide rod (74) is slidably connected to a limiting rod (75). A side groove (79) is formed on a side of the arc hook plate (76) close to the limiting rod (75).

10. The automatic box-entering device for heavy objects according to claim 8, characterized in that: The screw shaft (72) passes through one side of the positioning end shell (71) to the other side, the fine-tooth shaft (78) is rotatably connected to the positioning end shell (71), the limit rod (75) is threadedly connected to the screw shaft (72), the spline rod (9) is fixedly connected to the screw shaft (72), and a torsion spring is provided on the side of one end of the coarse-tooth shaft (73) away from the limit rod (75), and the two ends of the torsion spring are respectively fixedly connected to the coarse-tooth shaft (73) and the inside of the positioning end shell (71).

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