Polyurethane base plate pouring mold

Abstract

The utility model relates to a polyurethane base plate pouring mould which comprises an upper mould base and a lower mould base, one end of the upper mould base and one end of the lower mould base are hinged through a connecting mechanism, the other end of the upper mould base and the other end of the lower mould base are provided with a pressing mechanism and a mould opening and closing mechanism, and the pressing mechanism is fixed on the lower mould base and can rotate to press and fix the upper mould base. The upper die base and the lower die base are closed to form two independent cavities after being pressed, one end of each cavity is an open sprue gate, the die opening and closing mechanism is fixed to the upper die base and can rotate to open or press the upper die base when moving along an assembly line, the lower die base is provided with a fixing mechanism used for being fixedly connected to the assembly line, and the fixing mechanism is provided with a hinge shaft. The polyurethane base plate production line pouring mold is reasonable in structure and convenient to use, manpower resources are saved, the production efficiency is improved, the polyurethane base plate production line pouring mold is suitable for polyurethane base plate production line pouring operation, and the yield and the forming quality of polyurethane base plates are improved after the polyurethane base plate production line pouring mold is applied.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a polyurethane pad casting mold. Background Art

[0002] Polyurethane pads are important parts of high-speed railway fastener systems, used for shock absorption and noise reduction, absorbing vibration energy, etc. Thousands of such elastic pads are required for each kilometer of high-speed railway line. In view of the usage of polyurethane pads and the molding process of polyurethane raw materials, polyurethane pads are cast on an assembly line using a casting mold. Several casting molds circulate on the assembly line to perform mold opening, mold closing, and casting operations. Due to the molding characteristics of polyurethane, the casting mold needs to be flipped while traveling on the assembly line, from a flat state to an upright state with the pouring port facing upward, to facilitate the casting operation. Therefore, a polyurethane pad casting mold that is suitable for assembly line operations and can accurately realize the polyurethane pad casting process is required. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a polyurethane pad casting mould suitable for assembly line operation.

[0004] In order to solve the above problems, the technical solution adopted by the utility model is:

[0005] A polyurethane pad casting mold comprises an upper mold base and a lower mold base, wherein one end of the upper mold base and the lower mold base are hinged by a connecting mechanism, and the other end is provided with a clamping mechanism and a mold opening and closing mechanism, wherein the clamping mechanism is fixed on the lower mold base and can be rotated to clamp or release the upper mold base, the mold opening and closing mechanism is fixed on the upper mold base, and the lower mold base is provided with a fixing mechanism for fixedly connecting to an assembly line.

[0006] As an implementation mode of the utility model, the upper mold base and the lower mold base are closed to form two independent chambers, and a pouring gate is provided at one end of the chamber, and the length of the pouring gate is the same as the width of the chamber.

[0007] As an implementation mode of the utility model, a sealing strip is provided between the upper die base and the lower die base, and the sealing strip continuously surrounds the outside of the two cavities to make the parting surfaces of the two cavities airtight.

[0008] As an implementation mode of the utility model, a plurality of convex molds and concave molds are arranged in the chamber, the convex molds are arranged on the upper mold base, and the concave molds are arranged on the lower mold base.

[0009] As an embodiment of the utility model, the upper die base and the lower die base are provided with a plurality of one-to-one corresponding positioning blocks and positioning grooves, the positioning blocks are nested in the positioning grooves, the positioning blocks are arranged at the end of the upper die base, and the positioning grooves are arranged at the end of the lower die base.

[0010] As an embodiment of the utility model, the clamping mechanism includes a clamping seat, a clamping arm and a flip arm. The clamping arm is fixed on the clamping seat and can be rotated to clamp or loosen the upper mold seat. The flip arm is arranged at the end of the clamping seat.

[0011] As an implementation mode of the utility model, the ends of the clamping arm and the flip arm are both provided with rotatable sleeves, and the sleeves roll along the assembly line guide rails.

[0012] As an implementation mode of the utility model, a clamping rod is provided at the end of the clamping arm, and the clamping rod is connected to the clamping arm via a thread, and the distance between the clamping rod and the upper die seat can be rotated to adjust.

[0013] As an embodiment of the utility model, the mold opening and closing mechanism includes a main opening and closing rod and an auxiliary opening and closing rod. Along the moving direction of the assembly line, the main opening and closing rod is arranged in front of the auxiliary opening and closing rod. The length of the main opening and closing rod is greater than the length of the auxiliary opening and closing rod. The ends of the main opening and closing rod and the auxiliary opening and closing rod are both provided with rotatable sleeves.

[0014] As an embodiment of the utility model, the fixing mechanism includes an upper connecting seat and a lower connecting seat, the upper connecting seat and the lower connecting seat are hinged via a connecting shaft, the upper connecting seat is fixedly connected to the lower mold seat, and the lower connecting seat is fixed on the assembly line.

[0015] The beneficial effects of adopting the above technical solution are:

[0016] The utility model provides a polyurethane pad casting mold, in which an upper mold base and a lower mold base are hinged at one end by a connecting mechanism, and a clamping mechanism and a mold opening and closing mechanism are arranged at the other end. The clamping mechanism is fixed on the lower mold base and can be rotated to clamp or release the upper mold base, and the mold opening and closing mechanism is fixed on the upper mold base, and the upper mold base can be rotated to open or clamp when moving along the assembly line, so as to ensure that the opening and closing positioning of the casting mold are accurate and error-free; after clamping, the upper mold base and the lower mold base are closed to form two independent chambers, and one end of the chamber is an open pouring port, which is convenient for casting operations and exhaust; the lower mold base is provided with a fixing mechanism for fixed connection to the assembly line, and the fixing mechanism is provided with a hinge shaft, and the casting mold can be flipped from a horizontal state to a vertical state around the hinge shaft while moving on the assembly line, and the pouring port is flipped to the top for easy casting operations; the present application has a reasonable structure, is easy to use, is suitable for assembly line casting operations, can accurately shape the polyurethane pad according to the process, and greatly improves the output and quality of the polyurethane pad after application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the utility model from another angle;

[0019] Figure 3 This is a three-dimensional structural schematic diagram of the utility model from another angle;

[0020] Figure 4 It is a front structural schematic diagram of the utility model;

[0021] Figure 5 Is a side view of the utility model structure schematic;

[0022] Figure 6 It is a schematic diagram of the top view of the structure of the utility model;

[0023] Figure 7 It is a structural schematic diagram of the utility model in the mold opening state.

[0024] Among them: 1. upper die seat; 1-1. punch; 1-2. positioning block; 2. lower die seat; 2-1. die; 2-2. positioning groove; 3. connecting mechanism; 4. clamping mechanism; 4-1. clamping seat; 4-2. clamping arm; 4-2-1. clamping rod; 4-3. flip arm; 4-4. sleeve; 5. opening and closing mold mechanism; 5-1. main opening and closing rod; 5-2. auxiliary opening and closing rod; 6. fixing mechanism; 6-1. upper connecting seat; 6-2. lower connecting seat; 6-3. connecting shaft; 7. chamber; 7-1. pouring gate; 8. sealing strip. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model is clearly and completely described below in conjunction with specific embodiments.

[0026] like Figures 1 to 7 The polyurethane pad casting mold shown includes an upper mold base 1 and a lower mold base 2. One end of the upper mold base 1 and the lower mold base 2 are hinged by a connecting mechanism 3, and the other end is provided with a clamping mechanism 4 and a mold opening and closing mechanism 5. The clamping mechanism 4 is fixed on the lower mold base 2 and can be rotated to clamp or release the upper mold base 1 through a clamping arm 4-2. The mold opening and closing mechanism 5 is fixed on the upper mold base 1 and can open or close the mold by cooperating with the assembly line track. The lower mold base 2 is provided with a fixing mechanism 6 for fixedly connecting to the assembly line.

[0027] like Figure 5 and Figure 7 As shown, the upper mold base 1 and the lower mold base 2 are closed to form two independent chambers 7, which can simultaneously produce and mold two polyurethane pads. A pouring port 7-1 is provided at one end of the chamber 7, and the length of the pouring port 7-1 is the same as the width of the chamber 7, which is convenient for pouring and exhausting. A sealing strip 8 is provided between the upper mold base 1 and the lower mold base 2, and the sealing strip 8 continuously surrounds the outside of the two chambers 7 to make the parting surfaces of the two chambers 7 airtight. A plurality of convex molds 1-1 and concave molds 2-1 are provided in the chamber 7, and the convex mold 1-1 is provided on the upper mold base 1, and the concave mold 2-1 is provided on the lower mold base 2, which are used for the molding of polyurethane pads. The upper die base 1 and the lower die base 2 are provided with a plurality of one-to-one corresponding positioning blocks 1-2 and positioning grooves 2-2, the positioning blocks 1-2 are nested in the positioning grooves 2-2, the positioning blocks 1-2 are arranged at the end of the upper die base 1, and the positioning grooves 2-2 are arranged at the end of the lower die base 2, so as to facilitate the positioning and clamping of the upper die base 1 and the lower die base 2 and avoid deviations that affect the precision and quality of the polyurethane pad.

[0028] like Figure 2 and Figure 7 As shown, the clamping mechanism 4 includes a clamping seat 4-1, a clamping arm 4-2 and a flipping arm 4-3. The clamping seat 4-1 is fixed to the side of the lower die seat 2, and the clamping arm 4-2 is fixed on the clamping seat 4-1. The lower die seat 2 can rotate to clamp or loosen the upper die seat 1. A clamping rod 4-2-1 is provided at the end of the clamping arm 4-2. The clamping rod 4-2-1 is connected to the clamping arm 4-2 through a thread, and the distance between the clamping rod 4-2-1 and the upper die seat 1 can be rotated to adjust. The flipping arm 4-3 is provided at the end of the clamping seat 4-1, and is used to cooperate with the assembly line track to realize the flipping of the polyurethane pad casting mold between the horizontal state and the vertical state. The ends of the clamping arm 4-2 and the flipping arm 4-3 are both provided with a rotatable sleeve 4-4, and the sleeve 4-4 can roll along the assembly line track to make the polyurethane pad casting mold move smoothly and reduce wear.

[0029] The mold opening and closing mechanism 5 includes a main opening and closing rod 5-1 and an auxiliary opening and closing rod 5-2. Along the direction of travel of the assembly line, the main opening and closing rod 5-1 is arranged in front of the auxiliary opening and closing rod 5-2. The length of the main opening and closing rod 5-1 is longer than the auxiliary opening and closing rod 5-2. Rotatable sleeves are provided at the ends of the main opening and closing rod 5-1 and the auxiliary opening and closing rod 5-2. The mold opening and closing mechanism 5 cooperates with the assembly line track to realize mold opening and closing actions.

[0030] The fixing mechanism 6 includes an upper connecting seat 6-1 and a lower connecting seat 6-2, the upper connecting seat 6-1 and the lower connecting seat 6-2 are hinged by a connecting shaft 6-3, the upper connecting seat 6-1 is fixedly connected to the lower mold base 2, and the lower connecting seat 6-2 is fixed on the assembly line. The polyurethane pad casting mold can rotate around the connecting shaft 6-3, and cooperate with the assembly line track to realize the flipping between the horizontal state and the vertical state around the connecting shaft 6-3.

[0031] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A polyurethane pad casting mold, characterized in that: It comprises an upper die base (1) and a lower die base (2); one end of the upper die base (1) and the lower die base (2) are hinged via a connecting mechanism (3); the other end is provided with a clamping mechanism (4) and a mold opening and closing mechanism (5); the clamping mechanism (4) is fixed on the lower die base (2) and can be rotated to clamp or release the upper die base (1); the mold opening and closing mechanism (5) is fixed on the upper die base (1); and the lower die base (2) is provided with a fixing mechanism (6) for fixedly connecting to an assembly line.

2. A polyurethane pad casting mold according to claim 1, characterized in that: The upper mold base (1) and the lower mold base (2) are closed to form two independent chambers (7), one end of the chamber (7) is provided with a pouring port (7-1), and the length of the pouring port (7-1) is the same as the width of the chamber (7).

3. A polyurethane pad casting mold according to claim 2, characterized in that: A sealing strip (8) is provided between the upper die base (1) and the lower die base (2), and the sealing strip (8) continuously surrounds the outside of the two chambers (7) so that the parting surfaces of the two chambers (7) are sealed.

4. A polyurethane pad casting mold according to claim 2, characterized in that: A plurality of convex dies (1-1) and concave dies (2-1) are arranged in the chamber (7); the convex dies (1-1) are arranged on the upper die seat (1), and the concave dies (2-1) are arranged on the lower die seat (2).

5. The polyurethane pad casting mold according to claim 1, characterized in that: The upper die base (1) and the lower die base (2) are provided with a plurality of one-to-one corresponding positioning blocks (1-2) and positioning grooves (2-2), the positioning blocks (1-2) being nested in the positioning grooves (2-2), the positioning blocks (1-2) being arranged at the end of the upper die base (1), and the positioning grooves (2-2) being arranged at the end of the lower die base (2).

6. A polyurethane pad casting mold according to claim 1, characterized in that: The clamping mechanism (4) comprises a clamping seat (4-1), a clamping arm (4-2) and a flip arm (4-3); the clamping arm (4-2) is fixed on the clamping seat (4-1) and can be rotated to clamp or loosen the upper die seat (1); and the flip arm (4-3) is arranged at the end of the clamping seat (4-1).

7. A polyurethane pad casting mold according to claim 6, characterized in that: The ends of the clamping arm (4-2) and the turning arm (4-3) are both provided with rotatable shaft sleeves (4-4), and the shaft sleeves (4-4) roll along the assembly line guide rail.

8. A polyurethane pad casting mold according to claim 6, characterized in that: A clamping rod (4-2-1) is provided at the end of the clamping arm (4-2); the clamping rod (4-2-1) is connected to the clamping arm (4-2) via a thread, and the distance between the clamping rod (4-2-1) and the upper die seat (1) can be rotatably adjusted.

9. The polyurethane pad casting mold according to claim 1, characterized in that: The mold opening and closing mechanism (5) comprises a main opening and closing rod (5-1) and an auxiliary opening and closing rod (5-2); along the direction of travel of the assembly line, the main opening and closing rod (5-1) is arranged in front of the auxiliary opening and closing rod (5-2); the length of the main opening and closing rod (5-1) is greater than that of the auxiliary opening and closing rod (5-2); and rotatable shaft sleeves are arranged at the ends of the main opening and closing rod (5-1) and the auxiliary opening and closing rod (5-2).

10. The polyurethane pad casting mold according to claim 1, characterized in that: The fixing mechanism (6) comprises an upper connecting seat (6-1) and a lower connecting seat (6-2); the upper connecting seat (6-1) and the lower connecting seat (6-2) are hingedly connected via a connecting shaft (6-3); the upper connecting seat (6-1) is fixedly connected to the lower die seat (2); and the lower connecting seat (6-2) is fixed on the assembly line.

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