Buffering type conveying method, buffering device and conveying system

Abstract

The invention belongs to the technical field of tobacco machinery, and discloses a buffering type conveying method, a buffering device and a conveying system. The method comprises the steps that the conveying state of a product in the conveying process is obtained; the elastic buffering force is adjusted according to the conveying state, so that corresponding buffering is generated by impact generated when the product is conveyed to the end point, and the product is protected. By means of the method, the elastic buffering force can be close to the impact generated by each product at the conveying end point position, the elastic buffering force just buffers the impact of the products, the products can stably stay at the end point position, and follow-up transfer can be conveniently completed. Therefore, when the buffering type conveying method is used, the elastic buffering strength is flexibly adjusted according to the conveying state of each product, impact generated by the products can be effectively buffered, it is guaranteed that the products can be stably stopped at the designated positions, it can be guaranteed that appearance defects of the products caused by the impact can be avoided, and the product quality is improved. And the safety of products in the conveying process is effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tobacco machinery, in particular to a buffer type conveying method, a buffer device and a conveying system. BACKGROUND

[0002] The stability and efficiency of cigarette packet conveying have always been key technical points of tobacco packaging. With the continuous improvement of requirements of the tobacco industry on equipment efficiency, energy saving, environmental protection and the like, how to further optimize the performance of packaging machinery, improve the intelligent level of equipment and reduce the failure rate of equipment has become an important issue faced by the tobacco packaging machinery industry.

[0003] In the prior art, a cigarette packet conveying device includes a conveying line which can convey products to a specified position, and a buffer pad structure is arranged at the conveying terminal position. The buffer pad is usually made of a material with a certain elasticity, such as rubber, sponge and the like. When the cigarette packet hits the buffer pad at a relatively high speed, the buffer pad deforms elastically to absorb part of the impact energy, thereby reducing the impact force on the cigarette packet to a certain extent and reducing the risk of appearance defects of the cigarette.

[0004] However, the buffering degree of the buffer pad mainly depends on its material and thickness, which are usually fixed and cannot be dynamically adjusted according to the real-time conveying state of the cigarette packet, such as speed, weight and the like. This results in that in actual production, when the conveying speed, weight and the like of the cigarette packet change, the buffer pad cannot provide a buffering degree suitable for the change, the buffering effect is greatly reduced, and the cigarette packet is still prone to appearance defects such as head shrinkage when conveyed to the terminal. SUMMARY

[0005] The present application aims to provide a buffer type conveying method, a buffer device and a conveying system, and solve the problem that the impact during the conveying process of the cigarette packet conveying device in the prior art cannot be flexibly buffered, resulting in that the product is prone to appearance defects such as head shrinkage when conveyed to the terminal.

[0006] To achieve this purpose, the present application adopts the following technical solutions:

[0007] In a first aspect, the present application provides a buffer type conveying method, which includes:

[0008] obtaining a conveying state of a product in a conveying process;

[0009] adjusting an elastic buffering degree according to the conveying state to generate corresponding buffering to protect the product when the product is conveyed to a terminal.

[0010] Optionally, the obtaining of the conveying state of the product in the conveying process specifically includes:

[0011] The conveying speed of the product is detected multiple times during the conveying process, and the instantaneous speed of the product when conveyed to the end point is determined according to the multiple conveying speeds.

[0012] Optionally, the adjusting of the elastic buffering degree specifically includes:

[0013] When the instantaneous speed is greater than the speed preset value, the elastic buffering degree is increased;

[0014] When the instantaneous speed is equal to the speed preset value, the elastic buffering degree is maintained;

[0015] When the instantaneous speed is less than the speed preset value, the elastic buffering degree is decreased.

[0016] Optionally, the adjusting of the elastic buffering degree specifically includes:

[0017] The weight of the product is obtained at the start of the conveying;

[0018] When the product weight is greater than the weight preset value, the elastic buffering degree is increased;

[0019] When the product weight is equal to the weight preset value, the elastic buffering degree is maintained;

[0020] When the product weight is less than the weight preset value, the elastic buffering degree is decreased.

[0021] Optionally, the adjusting of the elastic buffering degree specifically includes:

[0022] The offset of the product during the conveying is obtained;

[0023] When the offset is greater than the offset preset value, the elastic buffering contact point is moved in the offset direction, and the displacement of the elastic buffering contact point is proportional to the offset.

[0024] In a second aspect, the present application provides a buffering device for buffering the conveyed product in the buffering conveying method as in any one of the first aspect, which includes:

[0025] A buffering assembly, one side of which is used to contact the product to receive the impact generated by the product when conveyed to the end point;

[0026] An elastic member, which is arranged on the other side of the buffering assembly and is pre-pressed to form an elastic buffering degree;

[0027] A driving member, which is connected with the buffering assembly;

[0028] The control module is used to acquire the conveying status of the product during conveying and is electrically connected to the drive component. The control module is used to control the operation of the drive component according to the conveying status to drive the buffer assembly to squeeze or release the elastic element and adjust the elastic buffering force.

[0029] Optionally, the buffer component includes:

[0030] The adjusting block is connected to the elastic element on one side and has a buffer layer on the other side for contacting the product and bearing impact. The adjusting block is connected to the driving element.

[0031] Optionally, the buffer layer includes:

[0032] An absorbent layer is disposed on the side of the adjusting block away from the elastic element;

[0033] A contact layer is disposed on the side of the absorption layer away from the adjustment block.

[0034] Thirdly, the present invention also provides a conveying system comprising:

[0035] A conveyor line having a loading position and a destination position, the conveyor line being used to transport products from the loading position to the destination position.

[0036] The buffer device as described in any one of the second aspects is disposed at the end position to buffer the impact on the product.

[0037] Optionally, the conveying system further includes:

[0038] A packing rack is provided corresponding to the endpoint to accommodate multiple products;

[0039] A pushing mechanism is provided on one side of the conveyor line to push the product at the end position into the packing rack.

[0040] The beneficial effects of this invention are:

[0041] Firstly, by using the above method, the conveying status of the products is acquired in real time during the conveying process. Based on this status, the appropriate elastic buffering force is pre-adjusted so that it closely approximates the impact generated by each product at the conveying endpoint. This elastic buffering force effectively cushions the impact, allowing the products to remain stably at the endpoint for subsequent transfer. Therefore, this buffered conveying method flexibly adjusts the elastic buffering force according to the conveying status of each product, effectively buffering the impact and ensuring that the products can be stably stopped at the designated position. It also ensures that the products do not suffer cosmetic defects due to impact, effectively improving product safety during the conveying process.

[0042] In the second aspect, when the product is conveyed, the control module obtains the conveying state of the product according to the buffer conveying method, and controls the driving member to operate according to the conveying state, so that the driving member drives the buffer assembly to press or release the elastic member, thereby adjusting the elastic buffer degree of the elastic member, so that the elastic buffer degree can just buffer the impact of the product on the buffer assembly, so that the product can be stably stopped at the buffer assembly. Therefore, during the conveying of the product, the control module can obtain the conveying state of the product in real time, and control the driving member to operate in real time according to the conveying state, so as to flexibly adjust the elastic buffer degree, ensure the effective buffering effect of the impact on the product, and improve the protection effect on the product.

[0043] In the third aspect, when the conveying system is used for conveying the product, the elastic buffer degree of the buffer device can be flexibly adjusted during the conveying of the product, so that the product can be stably and safely stopped at the terminal position, so that the product can be continuously conveyed at high speed, and the conveying rate of the product is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0044] Figure 1 is a flowchart of the buffer conveying method in the embodiment of the present application;

[0045] Figure 2 is a flowchart of the buffer conveying method in the embodiment of the present application, which adjusts the elastic buffer degree according to the instantaneous speed;

[0046] Figure 3 is a flowchart of the buffer conveying method in the embodiment of the present application, which adjusts the elastic buffer degree according to the weight of the product;

[0047] Figure 4 is a structural schematic diagram of the conveying system in the embodiment of the present application;

[0048] Figure 5 is a structural schematic diagram of the buffer device in the embodiment of the present application;

[0049] Figure 6 is a structural schematic diagram of the buffer assembly of the buffer device in the embodiment of the present application.

[0050] In the drawings:

[0051] 1, buffer assembly; 11, adjusting block; 12, buffer layer; 121, absorbing layer; 122, contact layer; 13, base; 131, waist-shaped hole; 2, elastic member; 3, driving member; 4, conveying line; 5, packing frame; 6, pushing mechanism; 61, pushing motor; 62, transmission assembly; 63, pushing head; 7, product. DETAILED DESCRIPTION

[0052] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0053] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0054] In the description of this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0055] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0056] like Figures 1 to 6 As shown, the present invention provides a buffered conveying method, a buffer device, and a conveying system.

[0057] Reference Figure 1 The buffered conveying method includes:

[0058] Step S1: Obtain the conveying status of the product during the conveying process.

[0059] Multiple sensors are distributed along the product's transport path. During transport, these sensors detect the product at multiple points to obtain its transport status, which includes transport speed, acceleration, and offset. Transport speed and acceleration directly affect the instantaneous velocity of the product upon reaching its destination, directly determining the impact strength at that point. Offset determines the relative contact between the product and the corresponding structure at the destination, also affecting the impact strength between them. A specific transport status may include one or more of these data points.

[0060] Step S2: Adjust the elastic buffer force according to the conveying status to provide corresponding buffering for the impact generated when the product is conveyed to the end point, so as to protect the product.

[0061] The elastic buffering force refers to the extent to which the buffering device can provide elastic cushioning when a product collides with it at the end point and generates an impact. When the elastic buffering force is close to the corresponding impact intensity, the product can remain stably at the end point. However, if the elastic buffering force is too small, it is insufficient to buffer the impact intensity, and the product is easily damaged, such as the cigarettes inside the pack developing a shrinking appearance defect. Conversely, if the elastic buffering force is too large, after the product is cushioned, the force may not only completely buffer the impact intensity but may also further push the product in the opposite direction, causing it to accumulate at the end point. Therefore, adjusting the elastic buffering force according to the conveying conditions can provide excellent protection for the product.

[0062] Through steps S1 and S2 described above, the conveying status of the products is acquired in real time during the conveying process. Based on this status, the corresponding elastic buffering force is pre-adjusted so that it approximates the impact generated by each product at the conveying endpoint. This ensures the elastic buffering force effectively cushions the impact, allowing the products to remain stably at the endpoint for subsequent transfer. Therefore, this buffered conveying method flexibly adjusts the elastic buffering force according to the conveying status of each product, effectively buffering the impact and ensuring the products remain stably positioned at the designated location. It also prevents surface defects caused by impact, effectively improving product safety during conveying.

[0063] Optionally, the conveying status of the product during the conveying process can be obtained, specifically including: detecting the conveying speed of the product multiple times during the product conveying process, and determining the instantaneous speed of the product when it reaches the destination based on the multiple conveying speeds.

[0064] Multiple sensors can be spaced out along the product's conveying path to repeatedly detect the product's conveying speed. These multiple speeds can be compared to determine the changes in the product's acceleration during transport. Based on these acceleration changes and the distance the product has traveled, the instantaneous speed at the destination can be determined. The magnitude of this instantaneous speed directly determines the impact strength the product can generate. In this embodiment, the product's conveying speed is between 0.8 m / s and 1.5 m / s.

[0065] Reference Figure 2 Optionally, the elastic cushioning force can be adjusted, specifically including:

[0066] When the instantaneous speed exceeds the preset speed value, the elastic buffer force is increased;

[0067] When the instantaneous speed equals the preset speed value, maintain the elastic buffer force;

[0068] When the instantaneous speed is less than the preset speed value, the elastic buffer force is reduced.

[0069] Specifically, the speed preset value can be an exact value, such as 1.1 m / s, or a range value, such as 1.0 m / s-1.2 m / s. When the instantaneous speed is greater than the speed preset value, the product is moving at high speed, and the impact generated is greater. Therefore, the elastic buffer force is increased accordingly. When the instantaneous speed is equal to the speed preset value, the product maintains a medium speed and the elastic buffer force remains unchanged. Conversely, the product is transmitted at low speed, and the elastic buffer force can be reduced.

[0070] Reference Figure 3 Optionally, the elastic cushioning force can be adjusted, specifically including:

[0071] The weight of the product is obtained at the start of the conveying process;

[0072] When the product weight exceeds the preset weight value, the elastic cushioning force is increased;

[0073] Maintain elastic cushioning force when the product weight equals the preset weight value;

[0074] When the product weight is less than the preset weight value, the elastic cushioning force is reduced.

[0075] Before product delivery, the products can be weighed to obtain the weight of each product. Product weight may vary; for example, a cigarette pack containing cigarettes may weigh 24.5g ± 0.5g. Because the product itself is relatively light, even slight changes in weight can significantly affect the impact strength it can generate. The preset weight value can be set to 24.5g or 24.4g-24.6g. When the product weight is greater than the preset weight value, it indicates that the product is heavier and can generate a higher impact strength at the same instantaneous speed. In this case, the elastic cushioning force is increased. When the product weight is equal to the preset weight value, the elastic cushioning force is maintained. When the product weight is less than the preset weight value, the corresponding gap elastic cushioning force is applied.

[0076] Optionally, the elastic cushioning force can be adjusted, specifically including:

[0077] Obtain the product's offset during the transportation process;

[0078] When the offset is greater than the preset offset value, the elastic buffer contact point moves along the offset direction, and the displacement of the elastic buffer contact point is proportional to the offset.

[0079] The product may deviate along the conveying path due to changes in local friction. This deviation alters the contact position between the product and the buffer device, affecting the contact area and consequently the impact strength. Therefore, by moving the buffer device along the deviation direction based on the amount of product deviation during conveying, the elastic buffer contact point can be moved. The displacement of the elastic buffer contact point can be proportional to the deviation. In this embodiment, the deviation is d. When d > 0.2 mm, the elastic buffer contact point is moved, and the displacement is x. K=5mm / 0.1mm. Through dynamic adjustments of offset and position, effective contact is ensured between the cigarette pack and the buffer device to effectively cushion the impact generated by the product.

[0080] It should be understood that the product conveying status includes multiple aspects of data such as product conveying speed, product weight, and product offset. In the above embodiments, in order to facilitate understanding of the adjustment logic of the elastic buffer force corresponding to the changes of each data, they are explained and recorded separately. However, the actual adjustment of the elastic buffer force is to adjust by combining all the above data, or it can be to adjust by combining any of the above data. The specific combination method is designed according to the different types of actual products, and this invention will not describe them one by one here.

[0081] In this example, to transport the cigarette packs as a product using the above method, speed detection can be achieved by directly setting a three-axis accelerometer to detect the product's transport acceleration in real time. The corresponding data can be transmitted via a CAN bus. Offset detection can be performed using a photoelectric sensor array spaced 50mm apart, with a sampling frequency of 1kHz. The temperature of the transport environment is between -10℃ and 50℃, the humidity is ≤90%RH, and the protection rating is IP54.

[0082] The system integrates an adaptive algorithm with a PID controller, adjusting parameters Kp = 0.8-1.2, Ti = 0.05s, and Td = 0.02s. The proportional coefficient Kp = 0.8-1.2, with a lower value (0.8) suitable for lightweight cigarette packs (24g) to prevent over-adjustment, and a higher value (1.2) for heavier cigarette packs (25g) to ensure rapid suppression of impact force. Its core function is to eliminate the cigarette pack accumulation problem caused by the photoelectric sensor response delay, controlling the peak impact pressure within the allowable range.

[0083] The integration time Ti = 0.05s eliminates steady-state errors in the system through rapid integration. This parameter is specifically designed for conveyor speed fluctuations (0.8-1.5m / s) and can promptly compensate for buffer force deviations caused by the decrease in stiffness of the elastic structure. Actual operation data shows that this setting reduces the residual impact pressure of the cigarette pack from 7.2MPa to below 2MPa.

[0084] With a derivative time Td = 0.02s, proactive control is achieved based on motion trend prediction. When a sudden change in the acceleration of the smoke pack is detected, the servo motor torque is adjusted in advance to suppress path deviation overshoot. Combined with a feedforward compensation mechanism, the correction response time is shortened from 0.8s to 0.5s.

[0085] Reference Figures 4 to 6 The buffer device is used in the aforementioned buffered conveying method to buffer the conveyed product 7. It includes a buffer assembly 1, an elastic element 2, a drive element 3, and a control module. One side of the buffer assembly 1 is used to contact the product 7 to absorb the impact generated by the product 7 when it is conveyed to the end point; the elastic element 2 is disposed on the other side of the buffer assembly 1; the drive element 3 is connected to the buffer assembly 1; the control module is used to acquire the conveying state of the product 7 during conveying and is electrically connected to the drive element 3; the control module is used to control the operation of the drive element 3 according to the conveying state to drive the buffer assembly 1 to squeeze or release the elastic element 2 and adjust the elastic buffering force.

[0086] With the inclusion of elastic element 2 and buffer assembly 1, once product 7 is conveyed, the control module acquires the conveying status of product 7 using a buffered conveying method. Based on this status, the control module controls the drive component 3 to operate. The drive component 3 then drives the buffer assembly 1 to compress or release elastic element 2, thereby adjusting the pre-compression elastic buffering force of elastic element 2. This ensures the elastic buffering force effectively cushions the impact of product 7 on the buffer assembly 1, allowing product 7 to remain stably positioned at the buffer assembly 1. Therefore, during the conveying process of product 7, the control module can acquire the conveying status of product 7 in real time and control the drive component 3 accordingly. This allows for flexible adjustment of the elastic buffering force, ensuring effective cushioning against impacts to product 7 and enhancing its protection.

[0087] Specifically, the elastic element 2 can be a spring, made of 60Si2Mn material, with a wire diameter of Φ=5mm, an effective number of coils of 8, and a stiffness coefficient of 50N / mm; the preload stroke is 5mm, the threshold force of 120N triggers the elastic reset, and the reset time is ≤0.3s, that is, in emergency mode, the reset occurs when the impact force is greater than or equal to 120N.

[0088] To adjust the direction of the drive block so that it can move with the offset of product 7, a servo motor is installed on the side of the drive block. The servo motor has a built-in 17-bit absolute encoder, which drives the adjusting block 11 through a planetary reducer (reduction ratio 10:1) and a flexible coupling. The flexible coupling is fixed at both ends with bolts and allows for radial compensation of ±0.5mm.

[0089] Optionally, the buffer assembly 1 includes an adjusting block 11. One side of the adjusting block 11 is connected to the elastic member 2, and the other side is provided with a buffer layer 12 for contacting the product 7 and bearing the impact. The adjusting block 11 is connected to the driving member 3.

[0090] Specifically, the adjusting block 11 is elongated, and its surface is coated with a diamond-like carbon coating with a thickness of 2μm-3μm and a friction coefficient ≤0.1. The adjusting block 11 is rigidly connected to a T-shaped metal base 13 by bolts. The base 13 has two oblong holes 131, each through which a bolt is inserted to fix it to the corresponding platform, and its position can be adjusted. The horizontal arm of the base 13 is 125mm in length, and the vertical arm is 75mm in length, with a ratio of 1.67:1. When the cigarette pack deviates during transport, it is corrected by a correction amount of y. θ is the rotation angle of the servo motor, and x is the displacement of the adjustment block 11 mentioned above. This further optimizes the angle adjustment control logic of the adjustment block 11, thereby enabling precise control of the displacement x of the adjustment block 11 based on the offset of the product 7.

[0091] The side of the adjusting block 11 away from the elastic element 2 serves as the contact surface with the product 7. A buffer layer 12 is provided on the contact surface to reduce friction with the product 7 and to prevent the adjusting block 11 from impacting the product 7 and damaging it.

[0092] Optionally, the buffer layer 12 includes an absorbent layer 121 and a contact layer 122. The absorbent layer 121 is disposed on the side of the adjusting block 11 away from the elastic member 2; the contact layer 122 is disposed on the side of the absorbent layer 121 away from the adjusting block 11.

[0093] Specifically, the contact layer 122 is made of nitrile rubber with a coefficient of friction of less than or equal to 0.15, and its surface is designed with a honeycomb texture. The absorption layer 121 is made of microporous silicone and is bonded to the side of the adjusting block 11. The porosity of the absorption layer 121 is 65%-70%, the thickness is 5mm, and the surface can be coated with a polyurethane wear-resistant coating with a coating thickness of 0.2mm. Through the cooperation of the contact layer 122 and the absorption layer 121, not only can the direct friction with the product 7 be effectively reduced, reducing the possibility of wear on the product 7, but the absorption layer 121 can also absorb the impact, forming a two-stage buffer in conjunction with the elastic element 2. The elastic element 2 can absorb 70% of the impact intensity, and the remainder is absorbed by the absorption layer 121, with an overall buffering rate of over 80%.

[0094] The conveying system includes a conveyor line 4 and a buffer device as described above. The conveyor line 4 has a loading position and a destination position, and is used to transport the product 7 from the loading position to the destination position. The buffer device is located at the destination position to cushion the impact on the product 7.

[0095] When used for conveying product 7, this conveying system can flexibly adjust the elastic buffering force formed by the buffer device during the conveying process of product 7, so that product 7 can be stably and safely stopped at the end position, thereby enabling product 7 to be conveyed continuously at high speed and effectively improving the conveying rate of product 7.

[0096] Optionally, the conveying system also includes a packing rack 5 and a pushing mechanism 6. The packing rack 5 is configured to receive multiple products 7 at the end point; the pushing mechanism 6 is located on one side of the conveyor line 4 to push the products 7 at the end point into the packing rack 5.

[0097] Specifically, the packing rack 5 has a channel for accommodating the product 7, which corresponds to the end position. The pushing mechanism 6 is located on one side of the conveyor line 4 and includes a push motor 61, a transmission assembly 62, and a push head 63. The push motor 61 controls the push head 63 to move through the transmission assembly 62 to push the product 7 at the end position into the channel of the packing rack 5.

[0098] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A method of buffering delivery, characterized by, The method comprises: acquiring a conveying state of the product during conveying; adjusting an elastic buffering degree according to the conveying state to generate corresponding buffering to protect the product when the product is conveyed to an end point.

2. The cushioned delivery method of claim 1, wherein, The acquiring of the conveying state of the product during conveying specifically comprises: detecting a conveying speed of the product multiple times during conveying of the product, and determining an instantaneous speed of the product when the product is conveyed to the end point according to the multiple conveying speeds.

3. The method of claim 2, wherein, The adjusting of the elastic buffering degree specifically comprises: when the instantaneous speed is greater than a speed preset value, increasing the elastic buffering degree; when the instantaneous speed is equal to the speed preset value, maintaining the elastic buffering degree; when the instantaneous speed is less than the speed preset value, decreasing the elastic buffering degree.

4. The cushioned delivery method of claim 1, wherein, The adjusting of the elastic buffering degree specifically comprises: acquiring a weight of the product at the beginning of conveying; when the weight of the product is greater than a weight preset value, increasing the elastic buffering degree; when the weight of the product is equal to the weight preset value, maintaining the elastic buffering degree; when the weight of the product is less than the weight preset value, decreasing the elastic buffering degree.

5. The method of claim 1 to 4, wherein The adjusting of the elastic buffering degree specifically comprises: acquiring an offset amount of the product during conveying; when the offset amount is greater than an offset preset value, moving an elastic buffering contact point in an offset direction, and a displacement amount of the elastic buffering contact point is proportional to the offset amount.

6. A damping device, characterized by A buffering device for buffering a product conveyed by the buffering conveying method according to any one of claims 1 to 5, comprising: a buffering assembly (1) configured to contact the product (7) to receive an impact generated by the product (7) when the product (7) is conveyed to an end point; an elastic member (2) arranged on the other side of the buffering assembly (1) and pre-compressed to form an elastic buffering degree; a driving member (3) connected with the buffering assembly (1); a control module configured to acquire a conveying state of the product (7) during conveying and electrically connected with the driving member (3), and the control module is configured to control the driving member (3) to operate to drive the buffering assembly (1) to compress or release the elastic member (2) to adjust the elastic buffering degree according to the conveying state.

7. The cushioning device of claim 6, wherein, The buffering assembly (1) comprises: an adjusting block (11) connected with the elastic member (2) on one side and provided with a buffering layer (12) configured to contact the product (7) and receive the impact on the other side, and the adjusting block (11) is connected with the driving member (3).

8. The cushioning device of claim 7, wherein, The buffering layer (12) comprises: an absorbing layer (121) arranged on the side of the adjusting block (11) away from the elastic member (2); a contact layer (122) arranged on the side of the absorbing layer (121) away from the adjusting block (11).

9. A delivery system characterized by, The method comprises: a conveying line (4) having a feeding position and an end point, and the conveying line (4) is configured to convey the product (7) from the feeding position to the end point; the buffering device according to any one of claims 6 to 8 arranged at the end point to buffer the impact of the product (7).

10. The delivery system of claim 9, wherein, The method further comprises: a packing frame (5) arranged corresponding to the end point to receive multiple products (7). A pushing mechanism (6) is arranged on one side of the conveying line (4) to push the products (7) at the terminal position into the packing frame (5).

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