Sleeper demolding machine
By designing a sleeper demolding machine, and utilizing a push rod and buffer mechanism in conjunction with the sleeper mold flipping, stable and rapid demolding of sleepers is achieved. This solves the problems of high labor intensity in traditional manual demolding and insufficient protection of automated equipment, thereby improving production efficiency and sleeper quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY NO 9 GRP NO 3 CONSTR CO LTD
- Filing Date
- 2025-05-16
- Publication Date
- 2026-05-01
AI Technical Summary
In the current railway sleeper production process, the traditional manual demolding method is labor-intensive and inefficient, while the automated equipment is complex, costly, and lacks adequate protection, thus failing to meet production needs.
A sleeper demolding machine was designed, including a support base and a support frame. It uses a push rod and a buffer mechanism to cooperate with the sleeper mold to flip. The push rod is controlled by a cylinder to lift the sleeper upward, and the buffer spring protects the sleeper, so as to achieve stable demolding.
It improved demolding efficiency, reduced manual operation, lowered labor intensity, protected the integrity of sleepers, and increased production efficiency.
Smart Images

Figure CN224183359U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of railway sleeper production equipment, specifically relating to a railway sleeper demolding machine. Background Technology
[0002] In the railway sleeper production process, after the sleepers are formed, they need to be removed from the mold. Traditional demolding methods are mostly manual, which is not only labor-intensive and inefficient, but also easily damages the sleepers and molds, affecting product quality and production efficiency. With the development of industrial automation, although some automated demolding equipment has emerged, these devices are complex in structure, expensive, and do not provide adequate protection for the sleepers during the demolding process, thus failing to meet the needs of actual production.
[0003] Therefore, there is a need to provide an improved technical solution that addresses the shortcomings of the existing technology. Utility Model Content
[0004] The purpose of this utility model is to overcome the shortcomings of the prior art. This utility model provides a sleeper demolding machine.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A sleeper demolding machine, comprising:
[0007] Support bases, multiple support bases are respectively located at the four corners of the sleeper mold, and a push rod is provided on the outside of the support base to push against the side edge of the opening of the sleeper mold from bottom to top. The stroke of the push rod is greater than the longitudinal thickness of the sleeper.
[0008] A support frame having a flat support surface with a height adapted to the support base, at least two support frames located between multiple support bases, and multiple buffer mechanisms respectively corresponding to the sleepers to be demolded on the support frame to support the sleepers that are ejected from the inside of the sleeper mold.
[0009] Preferably, the support base is provided with limiting parts corresponding to the side walls of the sleeper mold corners.
[0010] Preferably, the limiting member has an outwardly inclined guide surface on the upper edge of the side near the sleeper mold.
[0011] Preferably, the buffer mechanism includes:
[0012] A buffer seat, which is detachably connected to the side of the support frame;
[0013] A support plate is provided below which two guide columns are slidably mounted on the support frame along the longitudinal direction, and a buffer spring is provided between the support plate and the buffer seat.
[0014] Preferably, two spaced positioning plates are provided on the side of the buffer seat away from the support frame. The guide post passes through the two positioning plates longitudinally. The upper half of the guide post is a large-diameter section with an increased diameter corresponding to the upper positioning plate. The buffer spring is sleeved on the lower half of the guide post and abuts against the large-diameter section and the lower positioning plate, respectively.
[0015] Preferably, the portion of the guide post extending downwards from the lower positioning plate is threadedly connected to a nut.
[0016] Preferably, a buffer rubber layer is provided above the support plate, the length of which is adapted to the width of the sleeper.
[0017] Preferably, the top rod is provided with a top contact member at its upper end. The top contact member is an L-shaped angle iron, and a stepped platform corresponding to the wall thickness of the sleeper mold is provided on its inner lower edge.
[0018] Beneficial effects: This application provides an automated demolding device that, by setting an ejector rod to lift the track plate mold upward, can quickly and stably remove the sleeper from the mold, greatly improving demolding efficiency, reducing manual operation, and reducing the labor intensity of workers. Attached Figure Description
[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. Wherein:
[0020] Figure 1 This is a simplified structural diagram of the demolding machine provided in a specific embodiment of the present invention;
[0021] Figure 2 This is a schematic diagram of the support frame in a specific embodiment of the present invention.
[0022] In the diagram: 1. Support base; 2. Top rod; 3. Guide plate; 4. Top contact component; 5. Sleeper mold; 6. Sleeper; 7. Support frame; 8. Limiting component; 9. Support plate; 10. Buffer seat; 11. Positioning plate; 12. Buffer spring; 13. Guide post. Detailed Implementation
[0023] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art are within the protection scope of this utility model.
[0024] In the description of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and do not require that this utility model be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. The terms "connected" and "linked" used in this utility model should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; they can refer to a direct connection or an indirect connection through intermediate components. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.
[0025] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.
[0026] like Figure 1-2 As shown, a sleeper demolding machine is provided in this application. This demolding machine needs to be used in conjunction with a sleeper mold 5 for flipping. The sleeper flipping device is not limited in this application; it only needs to be able to flip the sleeper mold 5 and place it on the demolding machine. The sleeper demolding machine includes a support base 1 and a support frame 7. The support base 1 is used to support the sleeper mold 5. Multiple support bases 1 are located at the four corners of the sleeper mold 5. Specifically, there are four support bases 1, each corresponding to one of the four corners of the sleeper mold 5. The support 1 can be welded from steel plates and anchored to the concrete ground at the bottom by anchor bolts. The support 1 has a longitudinally extending assembly station on the four edges corresponding to the sleeper mold 5. A push rod 2 can be installed at the assembly station of the support 1 to push against the side edge of the opening of the sleeper mold 5 from bottom to top. The push rod 2 can extend upward to lift the sleeper mold 5, but does not simultaneously touch the sleeper 6. Thus, under the action of gravity, the sleeper 6 can be released downward from the sleeper mold 5. The stroke of the push rod 2 is greater than the longitudinal thickness of the sleeper 6, thus ensuring that the sleeper 6 can be completely released.
[0027] The detached sleeper 6 is supported by a support frame 7. The support frame 7 has a flat support surface with a height adapted to the support base 1 and is used to support the sleeper mold 5. At least two support frames 7 are located between multiple support bases 1. The two support frames 7 support the two ends of the sleeper 6 respectively. Multiple buffer mechanisms are provided on the support frame 7, each corresponding to the sleeper to be demolded. The buffer mechanisms prevent the sleeper 6 from falling onto the support frame 7 due to untimely detachment and cause damage. The sleeper 6 detached from the sleeper mold 5 is supported by buffering to prevent the sleeper 6 from being damaged by stress.
[0028] In this application, the push rod 2 is a cylinder, which is controlled by a solenoid valve in a pulse manner to form an air hammer that acts upward on the sleeper mold 5. The vibration force of the impact causes the sleeper 6 to be released by gravity and inertia.
[0029] In an optional embodiment, the support base 1 is provided with limiting members 8 corresponding to the side walls of the corners of the sleeper mold 5. The limiting members 8 are steel plates, which can stop the sleeper mold 5, so that the sleeper mold 5 can be accurately positioned and the top rod 2 can accurately touch the side corners of the sleeper mold 5. The upper edge of the limiting member 8 near the sleeper mold 5 is provided with an outwardly inclined guide surface, which reduces the difficulty of operation of the sleeper mold 5 flipping or transfer device.
[0030] In this embodiment, the push rod 2 is a hydraulic cylinder. A guide plate 3 corresponding to the piston rod of the hydraulic cylinder is provided at the assembly station. The guide plate 3 has a sliding hole in the middle corresponding to the piston rod, thereby limiting the lifting path of the hydraulic cylinder and ensuring the stability of the hydraulic cylinder.
[0031] In an optional embodiment, a buffer mechanism is used to support the sleeper 6. Each buffer mechanism corresponds to one end of the sleeper 6 and specifically includes a buffer seat 10 and a support plate 9. The buffer seat 10 is detachably connected to the side of the support frame 7. Two guide posts 13 are provided below the support plate 9 and are slidably mounted on the support frame 7 in the longitudinal direction. The buffer seat 10 is provided with longitudinally extending sliding holes corresponding to the guide posts 13. A buffer spring 12 is provided between the support plate 9 and the buffer seat 10. The buffer spring 12 provides buffering and adapts to the upward lifting amount caused by the sleeper 6 not being demolded in time during the demolding process.
[0032] Specifically, two spaced positioning plates 11 are provided on the side of the buffer seat 10 away from the support frame 7. The positioning plates 11 extend horizontally and are welded and fixed to the buffer seat 10. Two guide posts 13 are provided on each buffer seat 10 to ensure that the support plate 9 does not move. The guide posts 13 pass through the two positioning plates 11 longitudinally.
[0033] The upper half of the guide post 13 has an increased diameter, corresponding to the larger diameter section of the upper support plate 9. The buffer spring 12 is sleeved on the lower half of the guide post 13 and abuts against the larger diameter section and the lower positioning plate 11 respectively. The larger diameter section is used to stop the buffer spring 12. The part of the guide post 13 that extends downwards out of the lower positioning plate 11 is threaded with a nut. The height of the support plate 9 can be adjusted by adjusting the nut. The upper surface of the support plate 9 is higher than the support surface and extends into the mold. The left and right sides of the buffer spring 12 can make the support plate 9 extend upwards into the mold and directly abut against the sleeper 6, generating a certain support prestress with the sleeper 6. However, the stress supporting the sleeper 6 before demolding should be adjusted so as not to affect the sleeper 6 falling off due to gravity. The elasticity of the buffer spring 12 is adjusted according to the actual needs. A buffer rubber layer is provided above the support plate 9, the length of which is adapted to the width of the sleeper 6, thereby protecting the sleeper 6.
[0034] In an optional embodiment, in order to ensure support stability, a top contact 4 is provided at the upper end of the top rod 2. The top contact 4 is an L-shaped angle iron. The angle iron can block the two sides of the sleeper mold 5 that intersect each other, thereby preventing the top rod 2 from shifting. A stepped platform corresponding to the wall thickness of the sleeper mold 5 is provided on the lower inner side of the angle iron. The stepped platform is less than or equal to the wall thickness of the sleeper mold 5, thereby ensuring support stability.
[0035] In an optional embodiment, the support frame 7 is gantry-shaped, with its two end support columns fixed to the bottom concrete support surface by anchor bolts.
[0036] Furthermore, the bottom of the gate is equipped with a flange, and the anchor bolts pass upward through the flange, with nuts corresponding to the upper and lower surfaces of the flange on the anchor bolts.
[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be within the scope of protection of the pending claims of the present utility model.
Claims
1. A tie stripper, comprising: include: Support bases, multiple support bases are respectively located at the four corners of the sleeper mold, and a push rod is provided on the outside of the support base to push against the side edge of the opening of the sleeper mold from bottom to top. The stroke of the push rod is greater than the longitudinal thickness of the sleeper. A support frame having a flat support surface with a height adapted to the support base, at least two support frames located between multiple support bases, and multiple buffer mechanisms respectively corresponding to the sleepers to be demolded on the support frame to support the sleepers that are ejected from the inside of the sleeper mold.
2. The sleeper demolding machine according to claim 1, characterized in that, The support base is equipped with limiting parts on the side walls of the corresponding corners of the sleeper mold.
3. The tie extruder of claim 2 wherein, The limiting component has an outwardly inclined guide surface on the upper edge of the side near the sleeper mold.
4. The sleeper demolding machine according to claim 1, characterized in that, The buffer mechanism includes: A buffer seat, which is detachably connected to the side of the support frame; A support plate is provided below which two guide columns are slidably mounted on the support frame along the longitudinal direction, and a buffer spring is provided between the support plate and the buffer seat.
5. The sleeper demolding machine according to claim 4, characterized in that, Two spaced positioning plates are provided on the side of the buffer seat away from the support frame. The guide post passes through the two positioning plates longitudinally. The upper half of the guide post is a large-diameter section with an increased diameter, corresponding to the upper positioning plate. The buffer spring is sleeved on the lower half of the guide post and abuts against the large-diameter section and the lower positioning plate, respectively.
6. The sleeper demolding machine according to claim 5, characterized in that, The guide post extends downwards from the lower part of the positioning plate and is threadedly connected to a nut.
7. The sleeper demolding machine according to claim 5, characterized in that, A buffer rubber layer is provided above the support plate, the length of which is adapted to the width of the sleeper.
8. The sleeper demolding machine according to claim 1, characterized in that, The top rod is provided with a top contact member at its upper end. The top contact member is an L-shaped angle iron, and a stepped platform corresponding to the wall thickness of the sleeper mold is provided on its inner lower edge.