Bag opening device for bagging corn cobs

Abstract

The invention relates to the technical field of agricultural tools, in particular to a corn cob bagging bag opening device which comprises a supporting structure, four limiting structures used for limiting the edge of a corn bag are arranged outside the supporting structure, and a damping structure used for supporting the corn bag is arranged below the circle center formed by the four limiting structures; by means of the arrangement of the supporting disc, due to the fact that the distance between the supporting disc and the circular ring is smaller than the height of a corn bag, when the corn bag is filled with corn cobs, the impact force of the corn cobs on the corn bag is reduced, and the stability of the corn bag is ensured when the corn bag is filled with the corn cobs; through the arrangement of the four first connecting rods, when the corn bags are filled with corn cobs, the corn cobs in the corn bags can be limited through the four first connecting rods, disordered movement of the corn cobs in the bags is avoided, and due to the supporting columns and the springs fixedly connected to the lower portion of the supporting disc, the supporting disc reciprocates up and down through impact force of the corn cobs.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural tools, and particularly to a bag-supporting device for loading corn cobs into bags. Background Art

[0002] Corn is widely planted in China, and the proportion of individual farmers is large. After the corn is mature, individual farmers harvest the cobs and transport them home for spreading and drying. When the corn is dried to 40%-50% dry, it enters the filling and storage link. In order to facilitate storage, sealed corn bags are mostly selected because they can isolate adverse external factors and ensure storage quality and economic benefits.

[0003] At the same time, due to the small farmland area of individual farmers, the number of filled bags is small and the frequency is low. Although the method of directly lifting the corn bag by manpower is laborious, considering the overall workload, it is still within the physical tolerance of the staff. Therefore, farmers often do not give priority to mechanical lifting.

[0004] When loading corn cobs into a corn bag, it is extremely crucial to load them evenly and orderly. If the loading is not uniform, it will lead to an unstable center of gravity of the corn bag, causing the corn cobs to tilt during the loading process and being laborious during the lifting process.

[0005] When the existing bag-supporting structure loads corn cobs into a corn bag, it can only limit the edge of the bag top. If the distance between the corn cobs and the bag is too large during loading, the falling impact force is likely to cause the bag to tilt, interfering with the loading work, disrupting the process, increasing the difficulty and time of sorting, and reducing the loading efficiency.

[0006] Moreover, continuously lifting the corn bag from the bag-supporting structure by manpower will cause the staff to be fatigued and the operation speed to decrease.

[0007] Therefore, the present invention proposes a bag-supporting device for loading corn cobs into bags to make up for and improve the deficiencies of the existing technology. Summary of the Invention

[0008] Aiming at the defects existing in the prior art, the present invention provides a bag-supporting device for loading corn cobs into bags, which can effectively solve the technical problems of uneven loading of corn cobs during the loading process and laborious lifting of the loaded corn bag.

[0009] To achieve the above objectives, the present invention is realized through the following technical solutions: The present invention discloses a bag-supporting device for loading corn cobs into bags, including a support structure. Four groups of limiting structures for limiting the edge of the corn bag are arranged outside the support structure. Below the center of the circle formed by the four groups of limiting structures, a shock-absorbing structure for supporting the corn bag is arranged. An auxiliary structure is arranged on the outer side wall of the shock-absorbing structure, and the auxiliary structure constructs a tapered shape that is wider at the top and narrower at the bottom.

[0010] When the corn cob freely falls in the corn bag and generates an impact force, the impact force squeezes the shock-absorbing structure to slide towards the side away from the limiting structure, and the shock-absorbing structure drives the auxiliary structure to construct a cone with a gradually increasing diameter at the lower part;

[0011] When there is no impact force brought by the corn cob in the corn bag, the shock-absorbing structure automatically resets, driving the auxiliary structure to construct a cone with a gradually decreasing diameter at the lower part, and the corn cobs in the corn bag placed above the shock-absorbing structure gather together.

[0012] Preferably, the support structure includes a fitting ring for supporting the top of the corn bag, and four fixing columns are fixedly connected to the side wall of the bottom of the fitting ring, and a support seat is fixedly connected to the side of the four fixing columns away from the fitting ring;

[0013] The shape formed by the fitting ring, the fixing columns and the support seat is a cone with a narrow upper part and a wide lower part.

[0014] Preferably, both the fixing columns and the support seat are made of high-hardness metal;

[0015] The fitting ring is made of metal with a smooth outer wall.

[0016] Preferably, the limiting structure includes four limiting grooves opened on the outer side wall of the fitting ring, and the limiting structure further includes four limiting blocks, and the four limiting blocks are respectively adapted to the four limiting grooves;

[0017] The inner cavity of the limiting groove and the side of the limiting block to be inserted into the limiting groove are both trapezoidal;

[0018] A spherical groove is further opened in the inner cavity of the limiting groove, and the side of the limiting block to be inserted into the limiting groove is spherical.

[0019] Preferably, the shock-absorbing structure includes a support disc, and the distance between the support disc and the mouth of the corn bag is less than the distance when the corn bag is fully unfolded.

[0020] Preferably, the center of the support disc coincides with the center of the fitting ring.

[0021] Preferably, four support columns and four springs are uniformly fixedly connected to the lower surface of the support disc along the center. The support columns are outside the springs. The end of the support column away from the support disc is slidably connected to a fixed sleeve. The end of the fixed sleeve close to the support disc is fixedly connected to the spring, and the diameter of the support column is smaller than the inner diameter of the fixed sleeve.

[0022] Preferably, the auxiliary structure includes four first connecting rods hinged to the outer side wall of the support disc, and the four first connecting rods are evenly distributed along the center of the support disc. The four first connecting rods form a cone with a wide upper part and a narrow lower part.

[0023] Preferably, a connecting sleeve is slidably connected to one end of the first connecting rod away from the support disc. A second connecting rod is slidably connected to the inside of the connecting sleeve away from the first connecting rod. One side of the second connecting rod away from the connecting sleeve is hinged to the fixed column.

[0024] Adopting the technical solution provided by the present invention, compared with the known public technology, it has the following

[0025] Beneficial effects:

[0026] With the arrangement of the support disc in the present invention, since the distance between the support disc and the fitting ring is less than the height of the corn bag, when the corn cobs are filled into the corn bag, the impact force of the corn cobs on the corn bag is reduced, ensuring the stability of the corn bag when filling the corn cobs;

[0027] At the same time, through the four groups of first connecting rods hinged to the outer side wall of the support disc, when the corn cobs are filled into the corn bag, the four groups of first connecting rods can limit the corn cobs in the corn bag to prevent the corn cobs from moving disorderly in the bag. And during the process of gradually filling the corn bag with corn cobs:

[0028] Due to the support column and the spring fixedly connected below the support disc, the support disc makes a reciprocating up and down movement through the impact force of the corn cobs;

[0029] During the reciprocating movement of the support disc, the top edge of the corn bag is limited through the limiting groove and the limiting block. At the same time, the corn cobs in the corn bag are secondarily limited by the four groups of first connecting rods, so that the corn bag can always be precisely fitted with the fitting ring, fully reducing the situation of the corn bag tilting caused by the impact force during the filling of the corn cobs;

[0030] When the support disc moves away from the side of the fitting ring, it drives the cone formed by the four groups of first connecting rods to increase downward. At this time, the volume inside the rice bag increases, facilitating the filling of more corn cobs;

[0031] On the contrary, when the support disc moves towards the side of the fitting ring, it drives the cone formed by the four groups of first connecting rods to decrease downward. The four groups of first connecting rods can gather the corn cobs in the corn bag on the upper surface of the support disc towards the center of the support disc, which helps to adjust the distribution of the corn cobs to make it more uniform. At the same time, it provides assistance during the process of lifting the corn bag, relieving the labor intensity of the staff and reducing physical consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The present invention will be further described with reference to the embodiments illustrated in the following drawings, wherein:

[0033] Figure 1 is the front perspective structure diagram of the present invention;

[0034] Figure 2 is the perspective structure diagram of the limiting structure of the present invention;

[0035] Figure 3 This is the three-dimensional structure diagram of the shock-absorbing structure of the present invention;

[0036] Figure 4 This is the three-dimensional structure diagram of the positional relationship among the support column, spring and fixed sleeve of the present invention;

[0037] Figure 5 This is the three-dimensional structure diagram of the auxiliary structure of the present invention;

[0038] Figure 6 This is the three-dimensional state diagram of the corn bag filled with corn on the upper surface of the support plate of the present invention.

[0039] The reference numerals in the figure respectively represent:

[0040] 1. Support structure; 11. Fitting ring; 12. Fixed column; 13. Support seat;

[0041] 2. Limiting structure; 21. Limiting groove; 22. Limiting block;

[0042] 3. Shock-absorbing structure; 31. Support plate; 32. Support column; 33. Spring; 34. Fixed sleeve;

[0043] 4. Auxiliary structure; 41. First connecting rod; 42. Connecting sleeve; 43. Second connecting rod. Detailed implementation manners

[0044] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0045] The present invention will be further described below with reference to the embodiments.

[0046] In view of the above-mentioned corn cob bagging device, which includes a support structure 1, it is characterized in that: four groups of limiting structures 2 for limiting the edge of the corn bag are arranged outside the support structure 1, and a shock-absorbing structure 3 for supporting the corn bag is arranged below the center of the circle formed by the four groups of limiting structures 2, and an auxiliary structure 4 is arranged on the outer side wall of the shock-absorbing structure 3, and the auxiliary structure 4 constructs a tapered shape with a wider upper part and a narrower lower part;

[0047] Before the corn bag is filled with corn cobs, in order to avoid excessive distance between the top and bottom of the corn bag when the corn cobs are put into the corn bag, which may cause damage to the corn bag, through the setting of the shock-absorbing structure 3, the distance between the bottom and top of the corn bag is reduced;

[0048] At the same time, the auxiliary structure 4 is arranged around the shock absorbing structure 3, and the auxiliary structure 4 is in a cone shape with a wide top and a narrow bottom, so as to limit the four sides of the bottom of the corn bag;

[0049] To avoid the impact force caused by the free fall of corn cobs in the corn bag when the corn bag is filled with corn cobs, which may cause the limiting structure 2 to be unable to effectively limit the top of the corn bag;

[0050] When the corn cob freely falls in the corn bag and generates an impact force, the impact force squeezes the shock absorbing structure 3 to slide to the side away from the limiting structure 2, and the shock absorbing structure 3 drives the auxiliary structure 4 to build a tapered lower diameter that gradually increases, ensuring that the bottom of the corn bag can be stretched to fill the corn cob;

[0051] When there is no impact force caused by corn cobs in the corn bag, the shock-absorbing structure 3 automatically resets, driving the auxiliary structure 4 to construct a cone with a gradually reduced diameter below, and the corn cobs placed in the corn bag above the shock-absorbing structure 3 are gathered, and the shock-absorbing structure 3 plays a role in supporting the corn cobs.

[0052] The complete working principle and steps of the above embodiment are as follows:

[0053] The present invention takes into account that in the process of filling corn cobs with corn bags, in the initial state, due to the distance difference between the bottom of the corn bag and the top, when the corn cobs are filled in the corn bag, the corn cobs fall from a height and will generate a large impact force and uneven distribution force, so that when the corn cobs are continuously put into the bag, the bag body is prone to shake and tilt due to uneven force, especially on uneven ground. The ups and downs of the ground will make the bottom of the corn bag unstable, causing the corn bag to fall and the corn cobs to fall.

[0054] At the same time, the corn bag will produce pressure changes due to the gradual increase in the weight of the corn cobs inside. As the amount of corn cobs filled increases, the pressure on the bottom of the corn bag gradually increases. If the pressure cannot be evenly dispersed, there will be a situation where the local force is too large, causing the support structure 1 to deform or be damaged, and then causing the corn bag to be unstable;

[0055] The support structure 1 includes a fitting ring 11 for supporting the top of the corn bag, four sets of fixing columns 12 are fixedly connected to the bottom side wall of the fitting ring 11, and a support seat 13 is fixedly connected to the side of the four sets of fixing columns 12 away from the fitting ring 11;

[0056] The shape formed by the fitting ring 11, the fixing column 12 and the supporting seat 13 is a cone that is narrow at the top and wide at the bottom. First, the cone design that is narrow at the top and wide at the bottom has a larger bottom support area. When the corn bag is filled with corn cobs, the wide bottom can better disperse the weight of the corn cobs inside the corn bag, reduce the pressure on the ground, and reduce the unstable factors caused by uneven ground or excessive local force. For example, in some not-so-flat warehouse floors or outdoor venues, the bottom of the cone that is narrow at the top and wide at the bottom can effectively prevent the support structure 1 from sinking and tilting when the corn cobs are filled into the corn bag;

[0057] Before the corn bag is filled with corn cobs, the unfolded corn bag is placed inside the fitting ring 11 , and the top edge of the corn bag is folded outwards by staff and wrapped around the edge of the fitting ring 11 .

[0058] The fixing column 12 and the supporting seat 13 are both made of high-hardness metal to provide stable support when the corn bag is filled with corn cobs;

[0059] At the same time, in order to avoid that when the corn bag is filled with corn cobs, the top edge of the corn bag cannot be fully and tightly fitted with the fitting ring 11, resulting in a gap in the filling process of the corn cobs, causing the corn cobs to leak out from the gap between the top edge of the corn bag and the fitting ring 11;

[0060] The fitting ring 11 is made of metal with a smooth outer wall, which is convenient for the staff to fit the top edge of the corn bag tightly with the outer wall of the fitting ring 11, so as to prevent the corn cobs from leaking out of the gap between the top edge of the corn bag and the fitting ring 11. In addition, since the fitting ring 11 is made of metal, it is prevented that when the staff fills the corn cobs into the corn bag, the friction between the corn cobs and the fitting ring 11 causes damage to the top edge of the corn bag;

[0061] Furthermore, in the process of filling corn cobs, as the corn cobs continue to fall into the corn bag, impact force will be generated and the inside of the corn bag will be shaken. When the top edge of the corn bag is in contact with the edge of the fitting ring 11, if the top edge of the corn bag cannot be further limited, the top edge of the corn bag will gradually separate from the fitting state with the fitting ring 11.

[0062] The limiting structure 2 includes four groups of limiting grooves 21 formed on the outer wall of the fitting ring 11, and the limiting structure 2 also includes four groups of limiting blocks 22, and the four groups of limiting blocks 22 are respectively adapted to the four groups of limiting grooves 21;

[0063] The inner cavity of the limiting groove 21 and the side where the limiting block 22 needs to be inserted into the limiting groove 21 are both trapezoidal;

[0064] The inner cavity of the limiting groove 21 is also provided with a spherical groove, and the side of the limiting block 22 to be inserted into the limiting groove 21 is spherical;

[0065] When the top edge of the corn bag is in close contact with the outer wall of the fitting ring 11, the staff respectively fit the trapezoidal side of the four limiting blocks 22 to the top edge of the corn bag, and then insert the four limiting blocks 22 and the top edge of the fitted corn bag into the mutually adapted limiting grooves 21 in sequence. As the insertion depth of the limiting groove 21 increases, due to the slope of the trapezoidal side, the limiting block 22 will be subjected to an inward squeezing force from the side wall of the limiting groove 21, and the deeper it is inserted, the greater the squeezing force will be, making the connection between the limiting block 22 and the limiting groove 21 tighter and more secure. Even under the impact force of the falling corn cobs and the external force generated by the shaking inside the corn bag, through the mutual cooperation of the limiting block 22 and the limiting groove 21, the limiting effect on the top edge of the corn bag can be ensured;

[0066] The top edge of the corn bag is limited and fixed through the mutual cooperation of the four limiting grooves 21 and the four limiting blocks 22, so that the corn bag can resist external forces from all directions during the process of filling corn cobs and maintain the stability of the bag mouth.

[0067] The shock-absorbing structure 3 includes a support plate 31. When the unfolded corn bag is placed inside the fitting ring 11, the bottom of the corn bag is placed on the upper surface of the support plate 31, and then the staff fills the corn cobs into the corn bag from the bag mouth of the corn bag fixed by the four groups of limiting grooves 21 and the limiting blocks 22;

[0068] When the bottom of the corn bag is placed on the upper surface of the support plate 31, the distance between the support plate 31 and the corn bag mouth is less than the fully unfolded distance of the corn bag, so as to avoid the impact force of the corn cobs freely falling to its bottom on the bottom of the corn bag when filling the corn cobs, causing the corn bag to shake violently, and then resulting in the inability of the limiting groove 21 and the limiting block 22 to effectively limit the top edge of the corn bag.

[0069] The support plate 31 coincides with the center of the fitting ring 11. Based on the principle of force balance and uniform stress in mechanics, in an ideal state, the corn bag can be regarded as a container symmetric about the central axis. When the corn bag is placed on the upper surface of the support plate 31, if the corn cobs are filled into the corn bag through the center area of the fitting ring 11, because the support plate 31 coincides with the center of the fitting ring 11, the impact force generated by the corn cobs acts relatively uniformly on the area centered on the center of the support plate 31, so that the vertical line of the center of gravity of the corn bag roughly falls on the central area of the support plate 31, making the corn bag always maintain a good balance state and not easily tilt due to uneven stress.

[0070] Four support columns 32 and four springs 33 are uniformly and fixedly connected to the lower surface of the support plate 31 along the center. The support columns 32 are outside the springs 33. The end of the support column 32 far from the support plate 31 is slidably connected with a fixed sleeve 34, and the end of the fixed sleeve 34 close to the support plate 31 is fixedly connected to the spring 33;

[0071] When filling the corn bag with corn cobs, when the impact force of the corn cobs on the corn bag is greater than the elasticity of the spring 33 fixedly connected below the support plate 31, the support plate 31 will drive the support column 32 and the spring 33 fixedly connected to its bottom to slide away from the fitting ring 11 along with the impact force of the corn cobs. At this time, the support column 32 will slide inside the fixed sleeve 34, and the spring 33 will compress towards the end fixedly connected to the top of the fixed sleeve 34. At this time, the spring 33 converts the impact force of the corn cobs into elastic potential energy and stores it, buffering the impact force of the corn cobs on the support plate 31 and the support seat 13, preventing the impact force from being directly transmitted to the ground below, and avoiding the shaking and instability of the corn bag during the filling process.

[0072] When the impact force of the corn cobs is greater than the elasticity of the spring 33, since the bottom of the corn bag is placed on the upper surface of the support plate 31, the distance between the support plate 31 and the mouth of the corn bag is less than the fully unfolded distance of the corn bag. The impact force of the corn cobs will drive the corn bag to also slide away from the fitting ring 11 along with the impact force of the corn cobs, and slowly unfold, so that the unfolding of the corn bag can be adapted to the displacement of the support plate 31 and the impact force of the corn cobs, reducing the violent shaking and unstable factors of the corn bag caused by the impact force, enabling the corn bag to continue filling the corn cobs in a relatively stable state, and once again avoiding the shaking and instability of the corn bag during the filling process.

[0073] At the same time, when a small amount of corn cobs are filled in the corn bag, the outer wall of the support plate 31 is hinged to the first connecting rod 41, and the diameter of the support column 32 is smaller than the inner diameter of the fixed sleeve 34. If the corn cobs are not filled into the corn bag through the center area of the fitting ring 11, it will cause the corn cobs to deviate to one side of the corn bag at this time, so the pressure on one side of the corn cobs is relatively large, and the compression degree of the spring 33 also increases, storing more elastic potential energy. After filling the corn cobs, when the spring 33 releases the stored elastic potential energy, the spring 33 will drive the support plate 31 and the support column 32 to move towards the side close to the fitting ring 11 at this time, which will prompt this part of the corn cobs to move to other relatively empty areas, solving the problem of uneven distribution of corn cobs caused by improper filling position.

[0074] Also, since one end of the support column 32 away from the support plate 31 is slidably connected to the fixed sleeve 34, and one end of the fixed sleeve 34 close to the support plate 31 is fixedly connected to the spring 33, the sliding of the support column 32 inside the fixed sleeve 34 provides a limiting effect for the spring 33;

[0075] When the spring 33 is subjected to a large and uneven impact force of the corn cobs, it can prevent the spring 33 from undergoing irregular deformations such as bending and torsion, which will affect its normal axial expansion and contraction to achieve the shock absorption function.

[0076] The present invention further considers that if the weight of the corncob is small at this time, the impact force generated by the corncob will also decrease. If the impact force is less than the elasticity of the spring 33 fixedly connected below the support plate 31 at this time, the support plate 31 will not drive the spring 33 to move away from the fitting ring 11. And during the process of gradually loading the corncobs, if a certain part of the corncobs accumulates more, the center of gravity in the corncob bag gradually shifts, destroying the originally expected uniform stress state. At this time, the elastic potential energy stored in the spring 33 cannot solve the problem of uneven distribution of corncobs caused by improper loading positions;

[0077] The auxiliary structure 4 includes four first connecting rods 41 hingedly connected to the outer wall of the support plate 31, and the four first connecting rods 41 are evenly distributed along the center of the support plate 31. The four first connecting rods 41 form a cone with a wider upper part and a narrower lower part;

[0078] Since the four first connecting rods 41 are evenly distributed along the center of the support plate 31, when the corncobs are not evenly distributed in the corncob bag, especially in the case where the corncobs may spread disorderly to the periphery due to local accumulation and center of gravity shift, the cone formed by the four first connecting rods 41 with a wider upper part and a narrower lower part acts like a natural "obstruction net";

[0079] Viewed from below, its upper part with a smaller diameter can cover a larger area and can play a constraining role on a larger range at the bottom of the corncob bag. When the corncobs are not evenly distributed in the corncob bag, they will be blocked by the cone structure formed by the four first connecting rods 41.

[0080] A connecting sleeve 42 is slidably connected to one end of the first connecting rod 41 away from the support plate 31. A second connecting rod 43 is slidably connected to the inside of the connecting sleeve 42 away from the first connecting rod 41. One side of the second connecting rod 43 away from the connecting sleeve 42 is hingedly connected to the fixed column 12;

[0081] Since the four first connecting rods 41 are respectively hingedly connected to the support plate 31, and one side of the four first connecting rods 41 away from the support plate 31 is inside the connecting sleeve 42, the four first connecting rods 41 are respectively slidably connected to the connecting sleeve 42. Thus, when the support plate 31 slides away from the fitting ring 11 due to the impact force of the corncob;

[0082] At this time, the support plate 31 will also synchronously drive the ends of the four first connecting rods 41 away from the support plate 31 to slide inside the connecting sleeve 42, causing the conical diameter formed by the four first connecting rods 41 and the lower part of the support plate 31 to increase with the impact force of the corn. From a geometric perspective, the four first connecting rods 41 are like a movable conical frame. When the bottom is subjected to an outward pulling force, its opening will gradually become larger. In this scenario, the impact force of the corn cob is equivalent to an outward pulling force acting on the support plate 31. Through the transmission of the four first connecting rods 41, the conical structure makes corresponding morphological changes. The enlarged conical structure can effectively constrain the corn cob over a large range, limit the excessive dispersion of the corn cob, and maintain the relative stability of the bottom of the corn bag.

[0083] After the corn cob falls to the bottom of the corn bag, since there is no weight of the corn cob above the support plate 31 at this time, the support plate 31 will slide toward the side close to the fitting ring 11 through the spring 33 fixedly connected to its bottom. The support plate 31 will synchronously drive the cone formed by the four first connecting rods 41 to gradually converge toward the center of the support plate 31;

[0084] During the filling process, due to various reasons, the corn cobs are unevenly distributed at the bottom of the bag. When the support plate 31 returns to its position and drives the cone to converge, it will generate a force that converges the corn cobs toward the center, causing the originally unevenly distributed corn cobs in the corn bag to re-concentrate near the center of the support plate 31, redistributing the corn cobs evenly and avoiding over-dense local accumulation in the corn bag.

[0085] The present invention takes into account that when the corn cobs are gradually piled up in the corn bag, the corn bag needs to be correspondingly stretched to accommodate more corn cobs. If the corn bag cannot be fully stretched during the process of filling the corn cobs, the folds inside the corn bag will be squeezed by the corn cobs at this time, resulting in a situation where it cannot be normally unfolded, leading to the problem of insufficient filling space;

[0086] As the number of corn cobs at the bottom of the corn bag increases, the weight of the corn cobs will gradually be greater than the elasticity of the fixed support column 32 at the bottom of the support plate 31, causing the support plate 31 to gradually slide toward the side away from the fitting ring 11. At this time, the distance of the cone formed among the four first connecting rods 41, the connecting sleeve 42, and the second connecting rod 43 will synchronously increase, like a telescopic three-dimensional frame. When the bottom is stretched, the overall distance will increase accordingly. At this time, the impact force of filling the corn cobs into the corn bag will also cause the part of the corn bag that has not been unfolded to be stretched until the distance between the bottom of the corn bag and the four first connecting rods 41 enables the bottom of the corn bag to be fully stretched;

[0087] And at this time, the four first connecting rods 41 will also swing away from the center of the support plate 31, providing enough space on the upper surface of the support plate 31 for filling the corn cobs;

[0088] At this time, the staff no longer need to frequently sort the corn bags or interrupt the filling work due to insufficient filling space to adjust the bags. The corn cobs can be smoothly filled into the continuously expanding corn bags until the expected filling amount is reached, reducing the need for repeated filling due to limited filling amount.

[0089] Furthermore, when the corn bag needs to be taken out after filling, it is usually necessary to release the limit at the top edge of the corn cob in the corn bag, and then directly lift it by manpower. At this time, if the filled corn bag cannot be limited, the corn bag is very likely to tilt due to the weight distribution of the corn cobs inside and the unbalanced force generated during lifting, resulting in the spilling of the corn cobs.

[0090] Before the staff takes out the corn bag filled with corn cobs above the support plate 31, the staff pulls out the limit block 22 from the limit groove 21 opened on the side wall of the fitting ring 11. Since the support plate 31 supports the bottom of the corn bag at this time, the four first connecting rods 41, connecting sleeves 42 and second connecting rods 43 limit the displacement of the corn bag in the horizontal direction like a "fence" from all around, so that even when the limit at the top edge of the corn bag is about to be released and the corn bag is slightly disturbed by the outside world, the corn bag can still maintain a relatively stable state, reducing the risk of corn cob spilling and corn bag damage, and making the preliminary preparation of the entire taking-out operation more stable.

[0091] When the corn bag filled with corn cobs above the support plate 31 is taken out by manpower, since the corn bag is heavy after being filled with corn cobs, and during the lifting process, it is very easy to have an uneven force situation.

[0092] The staff pulls the top edge of the corn bag that fits with the limit groove 21 and the limit block 22. At this time, through the upward pulling force, the corn cob belt gradually slides to the side away from the support plate 31. The support plate 31 is elastically deformed by the spring 33 fixedly connected below it, and gradually slides towards the side close to the fitting ring 11 along with the bottom of the corn bag, so that when the staff pulls the corn cob belt filled with corn cobs, it can provide assistance to the staff. During the process of filling the corn cobs, the spring 33 can store relatively uniform elastic potential energy due to the limitation of the corn bag by the four first connecting rods 41, connecting sleeves 42 and second connecting rods 43. When taking out the corn bag, the spring 33 moves up along with the corn bag and the support plate 31, and the spring 33 releases the elastic potential energy. The direction of the elastic force generated is somewhat the same as the direction of taking out the corn bag, providing an auxiliary upward force for the lifting action of the staff and reducing the gravity component that the staff needs to overcome.

[0093] Meanwhile, when the support disc 31 slides towards the side close to the fitting ring 11, the four groups of first connecting rods 41 hinged to the outer side wall of the support disc 31 will also gather towards the center of the support disc 31, squeezing the outer side wall of the corncob belt from bottom to top, and providing assistance to the staff again;

[0094] Since the spring 33 has provided some assistance to reduce the gravity, and there is also an upward component force applied from the outer side wall by the first connecting rod 41 to assist, the actual pulling force that needs to be exerted by oneself is further reduced.

[0095] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A bag-supporting device for corn cobs, comprising a supporting structure (1), characterized in that: Outside the said support structure (1), there are four groups of limiting structures (2) for limiting the edges of the corn bags. Below the center of the circle formed by the four groups of limiting structures (2), there is a shock-absorbing structure (3) for supporting the corn bags. On the outer sidewall of the shock-absorbing structure (3), there is an auxiliary structure (4), and the auxiliary structure (4) is constructed into a conical shape with a wider top and a narrower bottom. When the corn cobs free-fall in the corn bags and generate an impact force, the impact force squeezes the shock-absorbing structure (3) to slide towards the side away from the limiting structure (2), and the shock-absorbing structure (3) drives the auxiliary structure (4) to gradually increase the diameter of the lower part of the constructed cone. When there is no impact force brought by the corn cobs in the corn bags, the shock-absorbing structure (3) automatically resets, driving the diameter of the lower part of the cone constructed by the auxiliary structure (4) to gradually decrease, and the corn cobs in the corn bags placed above the shock-absorbing structure (3) are gathered together.

2. The bag-holding device for corn cob bagging according to claim 1, characterized in that: The said support structure (1) includes a fitting ring (11) for supporting the top of the corn bag. At the bottom sidewall of the fitting ring (11), there are four fixed columns (12) fixedly connected. On the side of the four fixed columns (12) away from the fitting ring (11), there is a support base (13) fixedly connected. The shape formed by the fitting ring (11), the fixed columns (12), and the support base (13) is a conical shape with a narrower top and a wider bottom.

3. The bag-opening device for bagging corn cobs according to claim 2, characterized in that: Both the fixed columns (12) and the support base (13) are made of high-hardness metal. The fitting ring (11) is made of metal with a smooth outer sidewall.

4. The bag-supporting device for bagging corn cobs according to claim 3, characterized in that: The said limiting structure (2) includes four groups of limiting grooves (21) opened on the outer sidewall of the fitting ring (11). The limiting structure (2) also includes four groups of limiting blocks (22), and the four groups of limiting blocks (22) are respectively adapted to the four groups of limiting grooves (21). The inner cavity of the limiting groove (21) and the side of the limiting block (22) that needs to be inserted into the limiting groove (21) are both trapezoidal. The inner cavity of the limiting groove (21) is also provided with a spherical groove, and the side of the limiting block (22) that needs to be inserted into the limiting groove (21) is spherical.

5. The bag-holding device for corn cob bagging according to claim 1, characterized in that: The said shock-absorbing structure (3) includes a support disc (31), and the distance between the support disc (31) and the corn bag mouth is less than the distance when the corn bag is fully unfolded.

6. The bag-supporting device for bagging corn cobs according to claim 5, wherein: The support disc (31) coincides with the center of the fitting ring (11).

7. The bag-supporting device for bagging corn cobs according to claim 5, characterized in that: On the lower surface of the support disc (31), four support columns (32) and four springs (33) are evenly fixedly connected along the center. The support columns (32) are outside the springs (33). The end of the support column (32) away from the support disc (31) is slidably connected with a fixed sleeve (34). The end of the fixed sleeve (34) close to the support disc (31) is fixedly connected with the spring (33), and the diameter of the support column (32) is smaller than the inner diameter of the fixed sleeve (34).

8. The bag-supporting device for bagging corn cobs according to claim 5, characterized in that: The said auxiliary structure (4) includes four groups of first connecting rods (41) hingedly connected to the outer sidewall of the support disc (31), and the four groups of first connecting rods (41) are evenly distributed along the center of the support disc (31). The four groups of first connecting rods (41) form a conical shape with a wider top and a narrower bottom.

9. The bag-opening device for bagging corn cobs according to claim 8, characterized in that: One end of the first connecting rod (41) away from the support disc (31) is slidably connected with a connecting sleeve (42). Inside the connecting sleeve (42) away from the first connecting rod (41), a second connecting rod (43) is slidably connected. One side of the second connecting rod (43) away from the connecting sleeve (42) is hinged to the fixed column (12).

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