Material buffering mechanism for packaging production line

Abstract

The utility model provides a material buffering mechanism for a packaging production line, which comprises a supporting and weighing frame and a material reversing assembly, and the material reversing assembly is used for steering and correcting packaging materials on an upper production line; a transmission belt set is connected between the driving assembly and the driven assembly, and the driving assembly and the driven assembly are in transmission connection through the transmission belt set; the tensioning assembly is used for conducting tensioning treatment on the buffering mechanism; and the power assembly is used for providing driving force for rotation of the driving assembly. Materials produced by a packaging production line can be buffered through the driving assembly, the driven assembly, the transmission belt set and other structures, the material conveying speed is reduced, the problem that packaging boxes are damaged due to the fact that manpower cannot keep up with the packaging production line and the materials are ejected out of the packaging production line can be solved, economic losses caused by damage of the packaging boxes are avoided, and the production efficiency is improved. And the packaging production cost is increased.

Description

Technical Field

[0001] This utility model relates to the field of packaging machinery, and in particular to a material buffering mechanism for packaging production lines. Background Technology

[0002] A packaging production line is a system that combines independent automatic or semi-automatic packaging equipment and auxiliary equipment in the order of the packaging process. It is the core system for achieving automated product packaging in industries such as food, pharmaceuticals, daily chemicals, and electronics. Its design must balance efficiency, precision, flexibility, and compliance. Packaging production lines are needed for boxed food packaging to improve the efficiency of boxed food packaging.

[0003] During packaging production line processing, the production line speed is high and the production cycle is fast. The manpower cannot keep up with the output speed of the production line, which leads to the accumulation of materials in the manual processing area. These materials are prone to falling to the ground and damaging the packaging boxes. In addition, due to the high speed of the packaging production line, materials are prone to being ejected from the packaging production line, causing them to fall to the ground or injure people nearby, which will also damage the packaging boxes, resulting in certain economic losses and increasing the cost of packaging production. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defect of mismatch between production line speed and human speed in the prior art, and to provide a material buffering mechanism for packaging production lines.

[0005] The present invention solves the above-mentioned technical problems through the following technical solution:

[0006] This utility model provides a material buffering mechanism for a packaging production line, including a supporting weighing frame.

[0007] A material reversing component is connected to the top side of the supporting weighing frame. The material reversing component is used to deflect and correct the packaging materials on the upper production line.

[0008] An active component and a driven component are respectively disposed on both sides of a material reversing component. A transmission belt assembly connects the active component and the driven component, and the active component and the driven component are connected by transmission belt assembly.

[0009] The tensioning assembly is rotatably connected to both ends of the driven assembly, and the tensioning assembly is detachably connected to the side of the supporting weighing frame by screws. The tensioning assembly is used to tension the buffer mechanism.

[0010] A power component, the output end of which is connected to one end of the active component, is detachably connected to the side of the power component by screws, and the power component is used to provide driving force for the rotation of the active component.

[0011] In this technical solution, the active component, driven component and transmission belt assembly can buffer the materials produced by the packaging production line, reduce the material conveying speed, and avoid the situation where the manual labor cannot keep up with the speed of the packaging production line, causing the materials to accumulate and fall to the ground. At the same time, it can also prevent the materials from being ejected from the packaging production line and injuring the surrounding personnel. It can avoid the problem of packaging box damage caused by the above two situations, and avoid the economic loss and increased packaging production costs caused by packaging box damage.

[0012] Preferably, the material reversing assembly includes a base plate, the side of which is connected to the supporting weighing frame;

[0013] The bottom plate is provided with a material left reversing bar and a material right reversing bar, which are connected to the top side of the supporting weighing frame by positioning blocks and screws.

[0014] In this technical solution, the material reversing component can be used to turn and transport materials, which facilitates material transfer.

[0015] Preferably, the active component includes an active shaft and an active bearing assembly, with active bearing assemblies rotatably connected to both ends of the active shaft, and both active bearing assemblies being detachably connected to the side of the supporting weighing frame by screws.

[0016] The surface of the drive shaft is detachably connected by screws to two symmetrically distributed drive pulleys, and the surfaces of both drive pulleys are covered with a transmission belt assembly.

[0017] In this technical solution, the active component can actively drive the transmission belt assembly to rotate.

[0018] Preferably, the driven component includes a driven shaft, both ends of which are rotatably connected to the tensioning component. A driven pulley is connected to the surface of the driven shaft via a driven bearing assembly, and both transmission belt assemblies are wrapped around the surface of the driven pulley.

[0019] In this technical solution, the driven component is driven by the rotation of the transmission belt assembly.

[0020] Preferably, the tensioning assembly includes a tensioning block, which is rotatably connected to the end of the driven shaft column, and the tensioning block is detachably connected to the tensioning plate by screws;

[0021] The tensioning plate has a long groove and is detachably connected to the side of the supporting weighing frame by screws.

[0022] In this technical solution, the tensioning component can be used to adjust the tension of the transmission belt assembly, thus avoiding the problem of loosening caused by long-term use of the transmission belt assembly.

[0023] Preferably, an adjustment unit is provided at the lower part of the supporting weighing frame. The adjustment unit includes a movable base, and two positioning frames distributed on the left and right are provided above the movable base. The positioning frames are in contact with the bottom of the supporting weighing frame.

[0024] A reinforcing crossbar connects the two positioning frames. Two symmetrically distributed height adjustment plates connect the reinforcing crossbar and the movable base. The bottom of each height adjustment plate is connected to an adjustment component, which is connected to the movable base.

[0025] In this technical solution, the height of structures such as the supporting weighing frame and the transmission belt assembly can be adjusted using the control unit to adapt to packaging production lines of different heights.

[0026] Preferably, the movable base includes a support frame and movable wheels. The support frame has an inverted U-shaped cross-section, and multiple movable wheels are connected to the bottom of the support frame.

[0027] In this technical solution, a movable base can be used to support and move structures such as the supporting weighing frame.

[0028] Preferably, the positioning frame includes a support bar, and two positioning posts symmetrically distributed on the top of the support bar are connected to the top of the support bar. The positioning posts are inserted into the holes of the supporting weighing frame pillars.

[0029] In this technical solution, a positioning frame can be used to connect the supporting weighing frame and the movable base.

[0030] Preferably, the cross-section of the height adjustment plate is a stepped structure.

[0031] In this technical solution, the height of the positioning frame can be adjusted using a height adjustment plate.

[0032] Preferably, the adjustment component includes a bidirectional drive source connected to the inner wall of the top surface of the support plate frame, and both output ends of the bidirectional drive source are connected to an adjustment threaded shaft, with the end of the adjustment threaded shaft away from the bidirectional drive source being rotatably connected to the inner wall of the side surface of the support plate frame.

[0033] The two adjusting threaded shafts are threadedly connected to movable plates, which are symmetrically distributed. Multiple connecting strips are connected to the top of the movable plates. The surfaces of the connecting strips are slidably connected to the top surface of the support frame, and the top of the connecting strips is connected to the bottom of the reinforcing crossbar.

[0034] In this technical solution, the position of the height adjustment plate can be adjusted using the adjustment component, thereby allowing the height of structures such as the positioning frame and the supporting weighing frame to be adjusted using the height adjustment plate.

[0035] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this utility model.

[0036] The positive and progressive effects of this utility model are as follows:

[0037] This utility model utilizes active components, driven components, and transmission belts to buffer the materials produced by the packaging production line, reduce the material conveying speed, and prevent the situation where manual labor cannot keep up with the speed of the packaging production line, causing materials to accumulate and fall to the ground. It also prevents materials from being ejected from the packaging production line and injuring people around them. It avoids the problem of packaging box damage caused by the above two situations, thus avoiding economic losses and increased packaging production costs.

[0038] Meanwhile, by utilizing adjustable components such as positioning devices and height adjustment plates to adjust the height of the supporting weighing frame and transmission belt assembly, it can adapt to packaging production lines and manual operation areas of different heights, thereby increasing the applicability of the buffer mechanism and enhancing its flexibility in use. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the material buffering mechanism for a packaging production line according to an embodiment of the present invention.

[0040] Figure 2 for Figure 1 The diagram shown is a top view of the overall structure of the material buffer mechanism used in the packaging production line.

[0041] Figure 3 for Figure 1 The diagram shown is a side view of the tensioning assembly of a material buffer mechanism used in a packaging production line.

[0042] Figure 4 for Figure 1 The diagram shows a three-dimensional structural representation of the connection between the control unit and the supporting weighing frame of the material buffer mechanism used in the packaging production line.

[0043] Figure 5 for Figure 4 The diagram shows a front view of the connection between the control unit and the supporting weighing frame of the material buffer mechanism used in the packaging production line.

[0044] Figure 6 for Figure 5 The diagram shows a front cross-sectional view of the connection between the control unit and the supporting weighing frame of the material buffer mechanism used in the packaging production line.

[0045] Figure 7 for Figure 5The diagram shows a side sectional view of the connection between the control unit and the supporting weighing frame of the material buffer mechanism used in the packaging production line.

[0046] Figure 8 for Figure 4 The diagram shows the positioning frame structure of the material buffer mechanism used in the packaging production line.

[0047] Explanation of reference numerals in the attached figures

[0048] 1. Supporting the weighing frame;

[0049] 2. Material reversing assembly; 21. Base plate; 22. Material left reversing bar; 23. Material right reversing bar;

[0050] 3. Active assembly; 31. Active shaft; 32. Active bearing assembly; 33. Active pulley;

[0051] 4. Driven assembly; 41. Driven shaft; 42. Driven pulley; 43. Driven bearing assembly;

[0052] 5. Drive belt assembly;

[0053] 6. Tensioning assembly; 61. Tensioning block; 62. Tensioning plate;

[0054] 7. Power assembly; 71. Power source; 72. Mounting bracket; 73. Bevel gear one; 74. Bevel gear two; 75. Anti-rotation mounting plate;

[0055] 8. Movable base; 81. Support frame; 82. Casters;

[0056] 9. Positioning frame; 91. Support bar; 92. Positioning post;

[0057] 10. Strengthen the crossbar;

[0058] 11. Adjust the height of the pallet;

[0059] 12. Adjustment component; 121. Bidirectional drive source; 122. Adjustment threaded shaft; 123. Moving plate; 124. Connecting strip; 125. Anti-deviation track. Detailed Implementation

[0060] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0061] Figures 1 to 8 The diagram shown is a structural schematic of an embodiment of the material buffering mechanism of this utility model used in a packaging production line.

[0062] Example 1

[0063] The material buffer mechanism for the packaging production line includes a supporting weighing frame 1, which is composed of multiple longitudinally and transversely interconnected pillars.

[0064] Material reversing component 2 is connected to the top side of the supporting weighing frame 1. The material reversing component 2 is used to turn and correct the packaging materials on the upper production line.

[0065] Active component 3 and driven component 4 are respectively disposed on both sides of material reversing component 2. A transmission belt group 5 is connected between active component 3 and driven component 4, and active component 3 and driven component 4 are connected by transmission belt group 5.

[0066] Tensioning component 6, both ends of the driven component 4 are rotatably connected to tensioning component 6, and tensioning component 6 is detachably connected to the side of the supporting weighing frame 1 by screws. Tensioning component 6 is used to tension the buffer mechanism.

[0067] The power component 7 has its output end connected to one end of the active component 3. The power component 7 is detachably connected to the side of the active component 3 by screws. The power component 7 is used to provide driving force for the rotation of the active component 3.

[0068] In this technical solution, the active component 3, the driven component 4, and the transmission belt assembly 5 are used to buffer the materials produced by the packaging production line, reduce the material conveying speed, and prevent the materials from piling up and falling to the ground due to the inability of manpower to keep up with the speed of the packaging production line. At the same time, it can also prevent the materials from being ejected from the packaging production line and injuring the surrounding personnel. It can avoid the problem of packaging box damage caused by the above two situations, and avoid the economic loss and increased packaging production costs caused by packaging box damage.

[0069] The material reversing component 2 includes a base plate 21, the side of which is connected to the supporting weighing frame 1;

[0070] The bottom plate 21 is provided with a material left reversing bar 22 and a material right reversing bar 23. The material left reversing bar 22 and the material right reversing bar 23 are connected to the top side of the supporting weighing frame 1 by positioning blocks and screws.

[0071] In this technical solution, the material reversing component 2 can be used to turn and transport materials, which facilitates material transfer.

[0072] The active component 3 includes an active shaft 31 and an active bearing assembly 32. The active shaft 31 is rotatably connected to the two ends of the active bearing assembly 32. Both active bearing assemblies 32 are detachably connected to the side of the supporting weighing frame 1 by screws.

[0073] The surface of the drive shaft 31 is detachably connected by screws to two symmetrically distributed drive pulleys 33, and the surfaces of the two drive pulleys 33 are covered with a transmission belt assembly 5.

[0074] In this technical solution, the active component 3 can actively drive the transmission belt group 5 to rotate.

[0075] The driven component 4 includes a driven shaft 41, both ends of which are rotatably connected to the tensioning component 6. A driven pulley 42 is connected to the surface of the driven shaft 41 through a driven bearing assembly 43. Both of the transmission belt assemblies 5 are wrapped around the surface of the driven pulley 42.

[0076] In this technical solution, the driven component 4 is driven by the rotation of the transmission belt group 5.

[0077] Driven pulley 42 is mounted on the outer ring of the bearing in driven bearing assembly 43, and the inner ring of the bearing is mounted on driven shaft 41. The bushing of driven bearing assembly 43 is mounted on driven shaft 41 close to the end face of driven pulley 42, thereby achieving axial positioning of driven pulley 42 on driven shaft 41.

[0078] The tensioning assembly 6 includes a tensioning block 61, which is rotatably connected to the end of the driven shaft column 41. The tensioning block 61 is detachably connected to the tensioning plate 62 by screws.

[0079] The tensioning plate 62 has an elongated groove and is detachably connected to the side of the supporting weighing frame 1 by screws.

[0080] In this technical solution, the tensioning component 6 can be used to adjust the tension of the transmission belt assembly 5, thus avoiding the problem of loosening caused by long-term use of the transmission belt assembly 5.

[0081] When in use, if the belt drive of the buffer mechanism operates for a long time, the transmission belt group 5 will undergo plastic deformation and wear, resulting in the transmission belt group 5 becoming loose and the tension reduced. At the same time, the loosening of the transmission belt group 5 will reduce the friction between the transmission belt group 5 and the driven pulley 42 and the driving pulley 33, causing slippage and reducing the transmission efficiency.

[0082] Therefore, a long groove is designed on the tensioning plate 62. When the transmission belt group 5 undergoes plastic deformation, the center distance of the buffer mechanism is adjusted by the tensioning block 61 installed on the driven shaft column 41 to achieve tensioning of the transmission belt group 5, thereby achieving tensioning of the buffer mechanism.

[0083] The power assembly 7 includes a power source 71, which is detachably connected to the top of the mounting bracket 72 by screws and an anti-rotation mounting plate 75. The mounting bracket 72 is connected to the side of the supporting weighing frame 1 by screws.

[0084] The output end of the power source 71 is detachably connected to a bevel gear 73 by screws. The bevel gear 73 is meshed with a bevel gear 74 on its side. The bevel gear 74 is detachably connected to one end of the drive shaft 31 by screws.

[0085] The transmission ratio between bevel gear 73 and bevel gear 74 is 2:1.

[0086] In use, power is input from power source 71, and after passing through bevel gear 73 and bevel gear 74 with a transmission ratio of 2:1, the power is reversed and reduced in speed. The power is then transmitted to the drive pulley 33 mounted on the drive shaft 31, and then to the driven pulley 42 through the transmission belt group 5.

[0087] When the power source 71 is started, the speed gradually increases, which will generate a moving torque. If the power source 71 is in the suspension hole, the power source 71 may rotate. Therefore, the power source 71 is mounted on the mounting bracket 72 with an anti-rotation mounting plate 75, which solves the possibility of the power source 71 rotating.

[0088] The mounting bracket 72 is a variable frequency motor.

[0089] In use, power is transmitted from the power assembly 7 to the drive shaft 31, which drives the drive shaft 31 to rotate, thereby driving the two drive pulleys 33 to rotate, which in turn drives the transmission belt assembly 5 to rotate. When the transmission belt assembly 5 rotates, it transmits force to the driven pulley 42, so that the driven pulley 42 and the driven shaft 41 can rotate, completing the overall rotation of the transmission belt assembly 5, so that materials can be transported through the transmission belt assembly 5.

[0090] Example 2

[0091] As an embodiment of this application, the difference between it and embodiment one is that the lower part of the supporting weighing frame 1 is provided with an adjustment unit, the adjustment unit includes a movable base 8, and two positioning frames 9 distributed left and right are provided above the movable base 8, the positioning frames 9 are in contact with the bottom of the supporting weighing frame 1;

[0092] A reinforcing crossbar 10 is connected between the two positioning frames 9. Two symmetrically distributed height adjustment plates 11 are connected between the reinforcing crossbar 10 and the movable base 8. The bottom of each of the two height adjustment plates 11 is connected to the adjustment component 12, which is connected to the movable base 8.

[0093] In this technical solution, the height of structures such as the supporting weighing frame 1 and the transmission belt group 5 can be adjusted using the control unit to adapt to packaging production lines of different heights.

[0094] The movable base 8 includes a support frame 81 and movable wheels 82. The support frame 81 has an inverted U-shaped cross-section, and multiple movable wheels 82 are connected to the bottom of the support frame 81.

[0095] In this technical solution, the movable base 8 can be used to support and move structures such as the supporting weighing frame 1.

[0096] The positioning frame 9 includes a support bar 91, and two positioning posts 92 symmetrically distributed on the top of the support bar 91 are connected to the top of the support bar 91. The positioning posts 92 are inserted into the holes of the support pillars of the weighing frame 1.

[0097] In this technical solution, the positioning frame 9 can be used to connect the supporting weighing frame 1 and the movable base 8.

[0098] In use, the height adjustment plate 11 is placed on the two support bars 91, and the positioning column 92 is in the hole of the support column of the height adjustment plate 11, thus completing the installation between the support weighing frame 1 and the positioning frame 9.

[0099] The cross-section of the height adjustment plate 11 is a stepped structure.

[0100] In this technical solution, the height of the positioning frame 9 can be adjusted using the height adjustment plate 11.

[0101] The adjustment component 12 includes a bidirectional drive source 121, which is connected to the inner wall of the top surface of the support plate frame 81. Both output ends of the bidirectional drive source 121 are connected to an adjustment threaded shaft 122. The end of the adjustment threaded shaft 122 away from the bidirectional drive source 121 is rotatably connected to the inner wall of the side surface of the support plate frame 81.

[0102] The two adjusting threaded shafts 122 are threadedly connected to a movable plate 123. The two movable plates 123 are symmetrically distributed. The top of the movable plate 123 is connected to a plurality of connecting strips 124. The surface of the connecting strips 124 is slidably connected to the top surface of the support plate frame 81. The top of the connecting strips 124 is connected to the bottom of the reinforcing crossbar 10.

[0103] In this technical solution, the position of the height adjustment plate 11 can be adjusted by using the adjustment component 12, thereby adjusting the height of the positioning frame 9 and the supporting weighing frame 1 and other structures.

[0104] The inner wall of the side of the support plate frame 81 is connected to a plurality of anti-deviation rails 125, and the surface of the anti-deviation rails 125 is slidably connected to the movable plate 123.

[0105] In use, using lifting equipment such as jacks, the positioning frame 9 and the reinforcing crossbar 10 are raised, so that the reinforcing crossbar 10 is moved away from the height adjustment plate 11. Then, the bidirectional drive source 121 drives the adjustment threaded shafts 122 on both sides to rotate, which in turn drives the corresponding moving plate 123 to move along the anti-deviation track 125. At this time, the moving plates 123 on both sides can move towards each other or away from each other. When the moving plate 123 moves, it can drive the corresponding connecting strip plate 124 to move in the same direction, which can drive the corresponding height adjustment plate 11 to move, so that the height adjustment plates 11 on both sides can move towards each other or away from each other.

[0106] Position the different steps at the height adjustment plate 11 below the reinforcing crossbar 10, then lower the reinforcing crossbar 10 so that it contacts the height adjustment plate 11. Use the height adjustment plate 11 and other structures to support the reinforcing crossbar 10 and other structures. Then move out the jacks and other liftable equipment to complete the height adjustment of the supporting weighing frame 1 and other structures to adapt to packaging production lines of different heights.

[0107] The bidirectional drive source 121 is a dual-axis motor or other device capable of outputting bidirectional rotational kinetic energy.

[0108] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A material buffer mechanism for a packaging line, comprising a support weighing frame (1), characterized in that, The material buffering mechanism for the packaging production line further includes: a material reversing component (2), which is connected to the top side of the supporting weighing frame (1) and is used to turn and correct the packaging material on the production line. Active component (3) and driven component (4) are respectively disposed on both sides of material reversing component (2). A transmission belt group (5) is connected between the active component (3) and the driven component (4). The active component (3) and the driven component (4) are connected by transmission belt group (5). Tensioning assembly (6), both ends of the driven assembly (4) are rotatably connected to the tensioning assembly (6), and the tensioning assembly (6) is detachably connected to the side of the supporting weighing frame (1) by screws. The tensioning assembly (6) is used to tension the buffer mechanism. The power component (7) is connected to one end of the active component (3) by means of screws. The power component (7) is detachably connected to the side of the power component (7) and is used to provide driving force for the rotation of the active component (3).

2. The stock buffering mechanism for a packaging line according to claim 1, characterized in that: The material reversing assembly (2) includes a base plate (21), the side of which is connected to the supporting weighing frame (1); The bottom plate (21) is provided with a material left reversing bar (22) and a material right reversing bar (23), which are connected to the top side of the supporting weighing frame (1) by positioning blocks and screws.

3. The stock buffering mechanism for a packaging line according to claim 1, characterized in that: The active component (3) includes an active shaft (31) and an active bearing assembly (32). The active shaft (31) is rotatably connected to the two ends of the active bearing assembly (32). Both active bearing assemblies (32) are detachably connected to the side of the supporting weighing frame (1) by screws. The surface of the drive shaft (31) is detachably connected by screws to two drive pulleys (33) that are symmetrically distributed front and rear. The surfaces of the two drive pulleys (33) are covered with a transmission belt assembly (5).

4. The stock buffering mechanism for a packaging line according to claim 1, characterized in that: The driven component (4) includes a driven shaft (41), both ends of which are rotatably connected to the tensioning component (6). A driven pulley (42) is connected to the surface of the driven shaft (41) through a driven bearing assembly (43). Both transmission belt assemblies (5) are wrapped around the surface of the driven pulley (42).

5. The stock buffering mechanism for a packaging line according to claim 1, characterized in that: The tensioning assembly (6) includes a tensioning block (61), which is rotatably connected to the end of the driven shaft column (41), and the tensioning block (61) is detachably connected to the tensioning plate (62) by screws; The tensioning plate (62) has an elongated groove and is detachably connected to the side of the supporting weighing frame (1) by screws.

6. The stock buffering mechanism for a packaging line according to claim 1, characterized in that: The lower part of the supporting weighing frame (1) is provided with an adjustment unit, the adjustment unit includes a movable base (8), and two positioning frames (9) are arranged on the upper part of the movable base (8) and are distributed on the left and right. The positioning frames (9) are in contact with the bottom of the supporting weighing frame (1). A reinforcing crossbar (10) is connected between the two positioning frames (9). Two symmetrically distributed height adjustment plates (11) are connected between the reinforcing crossbar (10) and the movable base (8). The bottom of the two height adjustment plates (11) is connected to the adjustment component (12), which is connected to the movable base (8).

7. The material buffer mechanism for a packaging production line as described in claim 6, characterized in that: The movable base (8) includes a support frame (81) and movable wheels (82). The support frame (81) has an inverted U-shaped cross section and multiple movable wheels (82) are connected to the bottom of the support frame (81).

8. The stock buffering mechanism for a packaging line according to claim 6, characterized in that: The positioning frame (9) includes a support bar (91), and the top of the support bar (91) is connected to two positioning columns (92) that are symmetrically distributed on the left and right. The positioning columns (92) are inserted into the holes of the support pillars of the weighing frame (1).

9. The stock buffering mechanism for a packaging line according to claim 6, characterized in that: The cross-section of the height adjustment plate (11) is a stepped structure.

10. The stock buffering mechanism for a packaging line as claimed in claim 6, characterized in that: The adjustment component (12) includes a bidirectional drive source (121), which is connected to the inner wall of the top surface of the support plate frame (81). Both output ends of the bidirectional drive source (121) are connected to an adjustment threaded shaft (122). The end of the adjustment threaded shaft (122) away from the bidirectional drive source (121) is rotatably connected to the inner wall of the side of the support plate frame (81). The two adjusting threaded shafts (122) are threadedly connected to a movable plate (123). The two movable plates (123) are symmetrically distributed. The top of the movable plate (123) is connected to a plurality of connecting strips (124). The surface of the connecting strips (124) is slidably connected to the top surface of the support plate frame (81). The top of the connecting strips (124) is connected to the bottom of the reinforcing crossbar (10).

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