Elastic buffering and limiting push plate of filling assembly line
By using the guide post and compression spring design of the elastic buffer limit push plate, the problems of container damage and limit offset caused by rigid limit mechanism are solved, thus achieving container protection and improving filling accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIANXIAO INTELLIGENT TECH (ANHUI) CO LTD
- Filing Date
- 2025-09-26
- Publication Date
- 2026-05-19
AI Technical Summary
In existing filling production lines, rigid limiting mechanisms are prone to causing damage to the container surface and limit displacement, affecting filling accuracy and efficiency.
The push plate adopts an elastic buffer limiter, and through the combination design of guide posts and compression springs, it achieves elastic buffering and adaptive fitting of the push plate, replacing the traditional rigid push plate.
It effectively protects the container surface, improves the accuracy of the limit position and the stability of the production line, avoids container damage and limit position deviation, and improves filling accuracy and production efficiency.
Smart Images

Figure CN224258243U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automated filling equipment, specifically to an elastic buffer limit pusher for a filling production line. Background Technology
[0002] In automated filling lines, lateral positioning is crucial for container alignment during transport, ensuring precise docking at the filling station. This is a key factor in guaranteeing filling accuracy and efficiency. Currently, most positioning mechanisms use rigid push plates, lacking elastic cushioning design. On one hand, rigid contact can easily cause collision damage to the container surface, such as paint peeling and deformation, and may even compromise the seal of thin-walled containers. On the other hand, due to slight dimensional tolerances in the containers, rigid push plates cannot adaptively fit, easily leading to positioning misalignment. This results in poor lateral alignment, causing filling misalignment, leakage, and other problems, thus hindering the stability and production efficiency of the production line. Utility Model Content
[0003] The problem to be solved by this utility model is to provide an elastic buffer limit pusher for a filling production line.
[0004] To solve the above problems, this utility model provides an elastic buffer limiting pusher for a filling production line. To achieve the above objectives, the technical solution adopted by this utility model to solve its technical problems is as follows:
[0005] An elastic buffer limiting pusher for a filling production line includes: a pusher plate; a mounting plate, wherein two mounting plates are provided on the same side of the pusher plate, each mounting plate is fixed to the pusher plate by two guide posts, the guide posts have a degree of freedom of movement through the pusher plate, and a compression spring is sleeved on the guide post, the two ends of the compression spring abutting against the mounting plate and the pusher plate respectively; a linear drive cylinder, wherein a linear drive cylinder is mounted on the side of the mounting plate away from the pusher plate, the length direction of the linear drive cylinder is perpendicular to the length direction of the pusher plate, and the fixed position of the linear drive cylinder and the mounting plate is located between the two guide posts of the mounting plate; wherein the side of the pusher plate away from the mounting plate can contact the container.
[0006] As a further improvement of this utility model, the mounting plate includes an integral flat plate and an outward protrusion. The output end of the linear drive cylinder has a fork-shaped seat. The fork-shaped seat and the outward protrusion are pivotally connected by a pin. The axis of the pin is perpendicular to the length direction of the push plate.
[0007] As a further improvement of this utility model, one end of the guide post is fixed to the push plate, the mounting plate has a through hole, the other end of the guide post passes through the through hole, and washers are provided at both ends of the through hole. The inner diameter of the washers is smaller than the inner diameter of the through hole, and the guide post passes through the washers.
[0008] As a further improvement of this utility model, the washer includes an upper washer and a lower washer, with the side closer to the push plate being the lower washer and the side farther from the push plate being the upper washer. The lower washer is in contact with one end of the compression spring, and the guide post is fixed with a C-shaped retaining ring, which can contact the upper washer.
[0009] As a further improvement of this utility model, the line connecting the two guide posts of the mounting plate is parallel to the length direction of the push plate, the two guide posts of the mounting plate are symmetrically distributed on both sides of the protruding head, and the distances from the centroids of the two mounting plates to the push plate are equal.
[0010] As a further improvement of this utility model, the compression spring is pre-compressed between the mounting plate and the push plate.
[0011] As a further improvement of this utility model, the linear drive cylinder is a linear air cylinder.
[0012] As a further improvement of this utility model, the push plate includes a main plate, and the two sides of the main plate are integrally and vertically fixed with folded edges, which extend toward the side where the mounting plate is located.
[0013] As a further improvement of this utility model, the push plate is made of an integral nylon material.
[0014] The beneficial technical effects of using the elastic buffer limiting pusher plate of the filling production line of this application are:
[0015] This structure utilizes the freedom of movement of the guide post and the elasticity of the compression spring to create an elastic buffer when the push plate comes into contact with the container, replacing the hard impact of the traditional rigid push plate.
[0016] Compression springs can effectively absorb the force exerted by the push plate on the container, preventing damage such as paint peeling and deformation from occurring on the container surface when the push plate makes hard contact with the outer wall of the container. In particular, they can protect the sealing performance of thin-walled containers and solve the problem that rigid limiting mechanisms are prone to damaging containers.
[0017] In addition, the guide post has the freedom of movement to penetrate the push plate, and with the adaptive extension and retraction of the compression spring, the push plate can flexibly adjust the contact position and force according to the slight dimensional tolerances of the container, achieving a close fit and limit with containers of different sizes. This also compensates for the limitation of limit offset caused by the inability of rigid push plates to adapt to tolerances, and can improve the stability of automated production line operation.
[0018] Two mounting plates are installed on the same side of the push plate. Each mounting plate is connected to the push plate via two guide pillars, and a linear drive cylinder is fixed between the two guide pillars of the mounting plate. This layout ensures that the push plate is subjected to uniform force and prevents the push plate from tilting during the limiting process. This ensures the lateral alignment of containers on the automated filling line and provides structural support for filling accuracy and production efficiency. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a perspective view of one embodiment of the present utility model;
[0021] Figure 2 This is a partial enlarged view of point A in one embodiment of this utility model;
[0022] Figure 3 This is a top view of one embodiment of the present invention;
[0023] Figure 4 This is a BB cross-sectional view of one embodiment of the present invention;
[0024] Figure 5 This is a partial enlarged view of section C in one embodiment of this utility model.
[0025] 1-Push plate; 101-Folded edge; 102-Main plate; 2-Guide post; 3-Compression spring; 4-Mounting plate; 401-Flat plate; 4011-Through hole; 402-Outer protrusion; 5-Pin; 6-Fork-shaped seat; 7-Linear drive cylinder; 8-Upper washer; 9-C-shaped retaining ring; 10-Lower washer. Detailed Implementation
[0026] The present invention will be further described in detail below with reference to specific embodiments:
[0027] In order to achieve the purpose of this utility model, such as Figures 1 to 5 As shown, an elastic buffer limiting pusher for a filling production line includes: a pusher plate 1; a mounting plate 4, with at least two mounting plates 4 on the same side of the pusher plate 1, each mounting plate 4 being fixed to the pusher plate 1 by at least two guide posts 2, the guide posts 2 having a degree of freedom of movement through the pusher plate 1, and a compression spring 3 sleeved on the guide post 2, the two ends of the compression spring 3 respectively abutting against the mounting plate 4 and the pusher plate 1; and a linear drive cylinder 7, with a linear drive cylinder 7 mounted on the side of the mounting plate 4 away from the pusher plate 1, the length direction of the linear drive cylinder 7 being perpendicular to the length direction of the pusher plate 1, and the fixed position of the linear drive cylinder 7 and the mounting plate 4 being located between the two guide posts of the mounting plate 4.
[0028] The push plate 1, on the side facing away from the mounting plate 4, can contact the container. The length of the push plate 1 is greater than the width of the two containers.
[0029] The beneficial effects of adopting the above technical solution are: the structure, by utilizing the degree of freedom of movement of the guide post 2 and the elastic characteristics of the compression spring 3, enables the push plate 1 to form an elastic buffer when it comes into contact with the container, replacing the hard collision of the traditional rigid push plate and avoiding damage to the container surface.
[0030] In some other embodiments of this utility model, the mounting plate 4 includes an integral flat plate portion 401 and an external protrusion 402. The output end of the linear drive cylinder 7 is provided with a fork-shaped seat 6. The fork-shaped seat 6 and the external protrusion 402 are pivotally connected by a pin 5. The axis of the pin 5 is perpendicular to the length direction of the push plate 1.
[0031] The axis of pin 5 is also perpendicular to the axis of guide post 2, and the axis of guide post 2 is perpendicular to the length direction of push plate 1.
[0032] The beneficial effects of adopting the above technical solution are: the mounting plate 4 adopts an integrated flat plate part 401 and an external protrusion head 402 structure, which is pivotally connected to the fork-shaped seat 6 at the output end of the linear drive cylinder 7 through a pin 5, making the push plate 1 more flexible in motion, the transmission smoother, and reducing the jamming of the mechanism.
[0033] In some other embodiments of this utility model, one end of the guide post 2 is fixed to the push plate 1, such as... Figure 5 As shown, the mounting plate 4 has a through hole 4011, and the other end of the guide post 2 passes through the through hole 4011. Washers are provided at both ends of the through hole 4011. The inner diameter of the washers is smaller than the inner diameter of the through hole 4011, and the guide post 2 passes through the washers.
[0034] The beneficial effects of adopting the above technical solution are as follows: one end of the guide post 2 is fixed to the push plate 1, and the other end passes through the through hole 4011 of the mounting plate 4. Washers are set at both ends of the through hole 4011. The inner diameter of the washers is smaller than the inner diameter of the through hole 4011, which can effectively limit the sway of the guide post 2, enhance the guiding accuracy, prevent the compression spring 3 from being biased, and improve the stability and durability of the overall structure.
[0035] like Figure 5 As shown, in some other embodiments of this utility model, the washer includes an upper washer 8 and a lower washer 10. The side closer to the push plate 1 is the lower washer 10, and the side farther away from the push plate 1 is the upper washer 8. The lower washer 10 is in contact with one end of the compression spring 3. The guide post 2 is fixed with a C-shaped retaining ring 9, which can contact the upper washer 8.
[0036] The C-shaped retaining ring 9 is located on the same side of the upper washer 8 and the lower washer 10.
[0037] The beneficial effects of adopting the above technical solution are: by cooperating with the upper washer 8, the lower washer 10 and the C-shaped retaining ring 9, the axial displacement of the guide post 2 is restricted. At the same time, one end of the compression spring 3 contacts the lower washer 10, which further ensures the centering of the compression spring 3 when it is working, avoids the shaking of the push plate 1 due to the off-center load, and enhances the uniformity of the buffering effect.
[0038] In one embodiment, a linear bearing is added to the surface of the guide post 2, and the outer ring of the linear bearing is interference-fitted with the through hole 4011 of the mounting plate 4. By introducing the linear bearing, the sliding friction of the guide post 2 can be converted into rolling friction, which greatly reduces the motion resistance and makes the buffer rebound of the push plate 1 more sensitive and smooth.
[0039] In some other embodiments of this utility model, the line connecting the two guide posts 2 of the mounting plate 4 is parallel to the length direction of the push plate 1, the two guide posts 2 of the mounting plate 4 are symmetrically distributed on both sides of the protruding head 402, and the distance between the centroids of the two mounting plates 4 and the push plate 1 is equal.
[0040] The beneficial effects of adopting the above technical solution are: to make the push plate 1 bear force evenly, prevent skewing, and ensure the uniformity and consistency of lateral positioning of the container.
[0041] In some other embodiments of this utility model, the compression spring 3 is pre-compressed between the mounting plate 4 and the push plate 1.
[0042] The beneficial effects of adopting the above technical solution are: the compression spring 3 is pre-compressed between the mounting plate 4 and the push plate 1, so that it is always in a compressed state, which can provide elastic restoring force in time, enhance the responsiveness and buffering effect of the push plate 1, and avoid the untimely or failed limit due to spring relaxation.
[0043] In some other embodiments of this utility model, the linear drive cylinder 7 is a linear air cylinder.
[0044] The beneficial effects of adopting the above technical solution are: the linear drive cylinder 7 adopts a linear cylinder, which has a simple structure, fast power response, low cost, and is suitable for high-speed assembly line environment.
[0045] In some other embodiments of this utility model, the push plate 1 includes a main plate 102, and the two sides of the main plate 102 are integrally and vertically fixed with folded edges 101, which extend toward the side where the mounting plate 4 is located.
[0046] The beneficial effects of adopting the above technical solution are as follows: From the perspective of cross-section, the push plate 1 is similar to a channel steel. The main plate 102 of the push plate 1 has folded edges 101 extending towards the mounting plate 4 on both sides, which enhances the rigidity and structural strength of the push plate 1, prevents the push plate 1 from deforming during long-term use, and improves the stability of the contact surface with the container.
[0047] In some other embodiments of this utility model, the push plate 1 is made of an integral nylon material.
[0048] The beneficial effects of adopting the above technical solution are: the push plate 1 is made of one-piece molded nylon material, which has good wear resistance, self-lubrication and impact resistance, avoiding scratches on the surface of the container, and the overall weight is also light.
[0049] In one embodiment, a pressure sensor is embedded inside the pusher plate 1, and the pressure sensor signal is connected to an external control system. By monitoring the contact pressure between the pusher plate 1 and the container in real time, closed-loop control can be achieved, enabling the system to adaptively adjust the output force of the linear drive cylinder 7, achieving precise and flexible pushing, and further improving adaptability to different containers and different working conditions.
[0050] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They should not be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.
Claims
1. An elastic buffer limiting pusher for a filling production line, characterized in that, include: Push plate; Mounting plate, two mounting plates are provided on the same side of the push plate, each mounting plate is fixed to the push plate by two guide posts, the guide posts have the freedom of movement to pass through the push plate, and a compression spring is sleeved on the guide post, the two ends of the compression spring abut against the mounting plate and the push plate respectively; A linear drive cylinder is mounted on the side of the mounting plate away from the push plate. The length direction of the linear drive cylinder is perpendicular to the length direction of the push plate. The fixed position of the linear drive cylinder and the mounting plate is located between the two guide posts of the mounting plate. The side of the push plate that faces away from the mounting plate can contact the container.
2. The elastic buffer limiting pusher plate of the filling production line according to claim 1, characterized in that: The mounting plate includes an integral flat plate and an outward protrusion. The output end of the linear drive cylinder has a fork-shaped seat. The fork-shaped seat and the outward protrusion are pivotally connected by a pin. The axis of the pin is perpendicular to the length direction of the push plate.
3. The elastic buffer limiting pusher plate of the filling production line according to claim 1, characterized in that: One end of the guide post is fixed to the push plate. The mounting plate has a through hole. The other end of the guide post passes through the through hole. Washers are provided at both ends of the through hole. The inner diameter of the washers is smaller than the inner diameter of the through hole. The guide post passes through the washers.
4. The elastic buffer limiting pusher plate of the filling production line according to claim 3, characterized in that: The washer includes an upper washer and a lower washer. The washer closer to the push plate is the lower washer, and the washer further away from the push plate is the upper washer. The lower washer is in contact with one end of the compression spring. The guide post is fixed with a C-shaped retaining ring, which can contact the upper washer.
5. The elastic buffer limiting pusher plate of the filling production line according to claim 1, characterized in that: The line connecting the two guide posts of the mounting plate is parallel to the length direction of the push plate. The two guide posts of the mounting plate are symmetrically distributed on both sides of the protruding head, and the centroids of the two mounting plates to the push plate are equal.
6. The elastic buffer limiting pusher plate of the filling production line according to claim 1, characterized in that: The compression spring is pre-compressed between the mounting plate and the push plate.
7. The elastic buffer limiting pusher plate of the filling production line according to claim 1, characterized in that: The linear drive cylinder is a linear pneumatic cylinder.
8. The elastic buffer limiting pusher plate of the filling production line according to claim 1, characterized in that: The push plate includes a main plate, and both sides of the main plate are integrally and vertically fixed with folded edges, which extend toward the side where the mounting plate is located.
9. The elastic buffer limiting pusher plate of the filling production line according to claim 1, characterized in that: The push plate is made of one piece of nylon material.