Polyurethane experimental multi-mold foaming forming device

Abstract

The utility model relates to a kind of polyurethane experimental multi-mold foaming forming device, it includes base and support frame, the support frame is fixed on base, and support frame top is in echelon, the top of each step of support frame and support frame side are used to set mould;Constant-temperature tank is provided on the base, and the constant-temperature tank is connected with the heating pipe in each mould by liquid outlet pipe and liquid return pipe. The polyurethane experimental multi-mold foaming forming device integrates multiple specifications of mould to a device, share a constant-temperature tank, save equipment cost, reduce floor area, save power power, each mould is provided with independent valve, in laboratory, one or more moulds can be selected according to experimental needs to carry out experiment, when selecting multiple moulds to carry out experiment, the temperature control consistency between moulds can be improved, equipment utilization is improved, it is flexible and convenient to use, simplify experimental operation process, save laboratory space resources.

Description

Technical Field

[0001] This utility model relates to the field of foam molding technology, specifically to a multi-mold foam molding device for polyurethane experiments. Background Technology

[0002] In the field of polyurethane foam research, obtaining foamed samples with different shapes and properties requires the frequent use of experimental molds of various specifications, covering different shapes such as horizontal cuboids, vertical cuboids, L-shaped bodies, and irregular parts, as well as different types such as open and sealed types. Currently, these experimental molds are mostly independent single-unit structures, resulting in a large number of devices, high costs, poor temperature control consistency between different molds, high power consumption, large footprint, and low average utilization rate.

[0003] To address the aforementioned issues, simplify experimental procedures, and save laboratory space, developing a multifunctional experimental mold capable of stacking multiple mold specifications has become a key requirement for improving current polyurethane foaming experimental equipment. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a multi-mold foaming molding device for polyurethane experiments, which integrates molds of various specifications into one device and shares a constant temperature bath, thereby saving equipment costs, reducing floor space, saving power, improving temperature control consistency between molds, increasing equipment utilization, and making it flexible and convenient to use.

[0005] To solve the above problems, the technical solution adopted by this utility model is as follows: A polyurethane experimental multi-mold foaming molding device includes a base and a support frame. The support frame is fixed on the base and has a stepped top. The top of each step of the support frame and the sides of the support frame are used to set molds. A constant temperature bath is provided on the base, and the constant temperature bath is connected to the heating pipes in each mold through a liquid outlet pipe and a liquid return pipe.

[0006] In one embodiment of this utility model, the liquid outlet pipe includes a main liquid outlet pipe connected to the constant temperature bath, and the main liquid outlet pipe is connected to each mold through a liquid outlet branch pipe; the liquid return pipe includes a main liquid return pipe connected to the constant temperature bath, and the main liquid return pipe is connected to each mold through a liquid return branch pipe; a valve is provided on the liquid outlet branch pipe or liquid return branch pipe connected to the same mold.

[0007] In one embodiment of this utility model, the steps on the support frame rise sequentially from back to front, and the mold on the side of the support frame is set at the front end of the support frame.

[0008] In one embodiment of this utility model, the support frame includes a plurality of vertically arranged support columns and an mounting frame disposed at the top of the support columns, and a mold is mounted on the mounting frame; wherein a mounting frame is fixed on the front side of the support column at the foremost end of the base for mounting the mold at the front end of the support frame.

[0009] In one embodiment of this utility model, the mounting frame at the top of the support column is a first mounting frame and / or a second mounting frame. The first mounting frame is flat, and the second mounting frame consists of two support plates spaced apart front to back. The flat first mounting frame forms a step surface, on which a first mold is horizontally mounted. The second mold is rotatably mounted between the two support plates spaced apart in the middle of the second mounting frame via a pivot. The mounting frame on the front side of the support frame is a third mounting frame, which is flat and on which a third mold is vertically mounted.

[0010] In one embodiment of this utility model, the front and rear sides of the second mold are rotatably connected to the support plate via a rotating shaft and bearings, respectively. A semi-circular adjusting plate is fixed on the rotating shaft on the front side, and the straight edge of the adjusting plate is parallel to the length direction of the second mold. The adjusting plate has multiple positioning holes evenly opened along the arc edge, and the third mounting bracket has a pin hole corresponding to the positioning hole, and a positioning pin is provided in the pin hole.

[0011] As one embodiment of this utility model, the base is provided with universal wheels with brakes at the four corners of its bottom.

[0012] The beneficial effects of adopting the above technical solution are as follows: The polyurethane experimental multi-mold foaming molding device provided by this utility model integrates molds of various specifications into one device, sharing a common constant temperature bath, which saves equipment costs, reduces floor space, and saves power. Each mold is equipped with an independent valve, and one or more molds can be selected for experiments in the laboratory according to experimental needs. When multiple molds are selected for experiments, the temperature control consistency between molds can be improved, the equipment utilization rate can be increased, the use is flexible and convenient, the experimental operation process is simplified, and laboratory space resources are saved.

[0013] The top of the support frame is stepped, facilitating the opening and closing of different molds without interference. Furthermore, the base is equipped with casters at the bottom, allowing for easy movement of the equipment by pushing the handles on the molds. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure from the left front view of Embodiment 1 of this utility model.

[0015] Figure 2 This is a schematic diagram of the structure from the right front view of Embodiment 1 of this utility model.

[0016] Figure 3 This is a schematic diagram of the main structure of Embodiment 1 of this utility model.

[0017] Figure 4 This is a schematic diagram of the main structure of Embodiment 2 of this utility model.

[0018] Figure 5 This is a schematic diagram of the left front view structure of the second mounting bracket, the second mold, and the adjustment plate in Embodiment 2 of this utility model.

[0019] Figure 6 This is a schematic diagram of the structure of the second mounting bracket, the second mold, and the adjustment plate from the right front view in Embodiment 2 of this utility model.

[0020] The components are as follows: 1. Base, 2. Support frame, 3. First mounting frame, 5. Third mounting frame, 6. Constant temperature bath, 7. First mold, 8. Second mold, 9. Third mold, 10. Quick lock, 11. Casters, 13. Main outlet pipe, 14. Branch outlet pipe, 15. Main return pipe, 16. Branch return pipe, 17. Valve, 18. Support plate, 19. Rotary shaft, 20. Adjusting plate, 21. Positioning hole, 22. Connecting plate, 23. Pin hole, 24. Positioning pin. Detailed Implementation

[0021] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be clearly and completely described below in conjunction with specific embodiments.

[0022] To solve the above problems, the technical solution adopted by this utility model is as follows: Example 1: like Figures 1-3 The apparatus shown is a polyurethane experimental multi-mold foaming molding device, which includes a base 1 and a support frame 2. The support frame 2 is fixed on the base 1 and the top of the support frame 2 is stepped. The top of each step of the support frame 2 and the side of the support frame 2 are used to set molds. A constant temperature tank 6 is provided on the base 1. The constant temperature tank 6 is connected to the heating pipe in each mold through a liquid outlet pipe and a liquid return pipe.

[0023] The polyurethane experimental multi-mold foaming molding device integrates molds of various specifications into one device, sharing a constant temperature bath 6, which saves equipment costs, reduces floor space, and saves power. In the laboratory, one or more molds can be selected for experiments according to experimental needs. Each mold has an independent valve 17 on its pipeline. When in use, simply open the valve 17 corresponding to the mold. By operating the valve 17, any one, two, or more molds can be put into working condition, making it flexible to use.

[0024] like Figure 3As shown, the liquid outlet pipe includes a main liquid outlet pipe 13 connected to the constant temperature bath 6, and the main liquid outlet pipe 13 is connected to each mold via a liquid outlet branch pipe 14; the liquid return pipe includes a main liquid return pipe 15 connected to the constant temperature bath 6, and the main liquid return pipe 15 is connected to each mold via a liquid return branch pipe 16; a valve 17 is provided on the liquid outlet branch pipe 14 or liquid return branch pipe 16 connected to the same mold. Heating tubes are embedded inside both the mold body and the mold cover plate. Each liquid outlet branch pipe 14 and liquid return branch pipe 16 needs to be connected to the heating tubes inside the mold body and the mold cover plate respectively through branch pipes to achieve uniform heating of the entire mold.

[0025] Reference Figure 3 In the diagram, the left side represents the rear of the support frame 2, and the right side represents the front. In this embodiment, the steps on the support frame 2 rise sequentially from back to front, and the molds on the side of the support frame 2 are located at the front end of the support frame 2. The top of the support frame 2 is stepped, facilitating the opening and closing of different molds without interference. Specifically, the support frame 2 includes multiple vertically arranged support columns and mounting frames located at the top of the support columns. Molds are mounted on the mounting frames; a mounting frame is fixed to the front side of the foremost support column of the base 1 for mounting molds at the front end of the support frame 2.

[0026] In this embodiment, the mounting brackets at the top of the support column are all first mounting brackets 3, which are flat and form a step surface. A first mold 7 is horizontally mounted on the step surface. The mounting bracket on the front side of the support frame 2 is a third mounting bracket 5, which is flat and has a third mold 9 vertically mounted on it. The first mold 7 is a square mold, and the third mold 9 is a vertical mold.

[0027] As a further optimization, the base 1 is equipped with universal wheels 11 with brakes at the four corners of its bottom. As a further optimization, when there are two first molds 7 and one third mold 9, the hinge position between the mold cover plate of the middle first mold 7 and the mold body is located on the side away from the third mold 9, which makes it easier to open the mold cover plate.

[0028] Example 2: like Figures 4-6 As shown, the difference between this embodiment and Embodiment 1 is that, in addition to the flat first mounting bracket 3, the mounting frame at the top of the support column also includes a second mounting bracket. The second mounting bracket consists of two support plates 18 spaced apart along the base 1 at the top of the support column. A second mold 8, which is a Laneige mold, is rotatably mounted between the two spaced-apart support plates 18 via a pivot 19. In this embodiment, one first mounting bracket 3 and one second mounting bracket are provided, with the second mounting bracket located between the first mounting bracket 3 and the third mounting bracket 5.

[0029] Specifically, the front and rear sides of the second mold 8 are rotatably connected to the support plate 18 via a rotating shaft 19 and bearings, respectively. A semi-circular adjusting plate 20 is fixed to the rotating shaft 19 on the front side, with its straight edge parallel to the length of the second mold 8. The adjusting plate 20 has multiple positioning holes 21 evenly spaced along its arc-shaped edge. The third mounting bracket 5 has a pin hole 23 corresponding to the positioning hole 21, and a positioning pin 24 is installed in the pin hole 23. After the second mold 8 is rotated to adjust its position, the positioning pin 24 can fix the positioning hole 21 corresponding to the current pin hole 23. Since the third mold 9 is mounted at the front of the third mounting bracket 5, the positioning pin 24 is inserted from the rear side of the adjusting plate 20 into the positioning hole 21 and the pin hole 23.

[0030] As a further optimization, the hinge position between the mold cover plate and the mold body of the second mold 8 is located on the side away from the third mold 9, which makes it easier to open the mold cover plate.

[0031] Example 3: The difference between this embodiment and embodiments 1 and 2 is that the first mounting bracket 3 in the form of a flat plate is not provided; only the second mounting bracket and the third mounting bracket 5 are provided.

[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features; 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 experimental multi-mold foaming molding device, characterized in that: It includes a base (1) and a support frame (2). The support frame (2) is fixed on the base (1) and the top of the support frame (2) is stepped. The top of each step of the support frame (2) and the side of the support frame (2) are used to set the mold. A constant temperature tank (6) is provided on the base (1). The constant temperature tank (6) is connected to the heating pipe in each mold through the liquid outlet pipe and the liquid return pipe.

2. The polyurethane experimental multi-mold foaming molding device according to claim 1, characterized in that: The liquid outlet pipe includes a main liquid outlet pipe (13) connected to the constant temperature bath (6), and the main liquid outlet pipe (13) is connected to each mold through a liquid outlet branch pipe (14); the liquid return pipe includes a main liquid return pipe (15) connected to the constant temperature bath (6), and the main liquid return pipe (15) is connected to each mold through a liquid return branch pipe (16); a valve (17) is provided on the liquid outlet branch pipe (14) or liquid return branch pipe (16) connected to the same mold.

3. The polyurethane experimental multi-mold foaming molding device according to claim 2, characterized in that: The steps on the support frame (2) rise sequentially from back to front, and the mold on the side of the support frame (2) is set at the front end of the support frame (2).

4. The polyurethane experimental multi-mold foaming molding device according to claim 3, characterized in that: The support frame (2) includes multiple vertically arranged support columns and an installation frame set at the top of the support columns. A mold is installed on the installation frame. An installation frame is fixed on the front side of the support column at the front of the base (1) for installing the mold at the front end of the support frame (2).

5. The polyurethane experimental multi-mold foaming molding device according to claim 4, characterized in that: The mounting frame at the top of the support column is a first mounting frame (3) and / or a second mounting frame. The first mounting frame (3) is flat, and the second mounting frame is two support plates (18) spaced apart. The flat first mounting frame (3) forms the tread of the step, and the first mold (7) is horizontally mounted on the tread. The second mold (8) is rotatably mounted between the two support plates (18) spaced apart in the middle of the second mounting frame via a pivot (19). The mounting frame on the front side of the support frame (2) is a third mounting frame (5), which is flat and has a third mold (9) mounted vertically.

6. The polyurethane experimental multi-mold foaming molding device according to claim 5, characterized in that: The front and rear sides of the second mold (8) are rotatably connected to the support plate (18) via a rotating shaft (19) and bearings, respectively. A semi-circular adjusting plate (20) is fixed on the rotating shaft (19) on the front side. The straight edge of the adjusting plate (20) is parallel to the length direction of the second mold (8). The adjusting plate (20) has multiple positioning holes (21) evenly opened along the arc edge. The third mounting bracket (5) has a pin hole (23) corresponding to the positioning hole (21). A positioning pin (24) is provided in the pin hole (23).

7. A polyurethane experimental multi-mold foaming molding apparatus according to any one of claims 1-6, characterized in that: The base (1) is equipped with universal wheels (11) with brakes at the four corners of its bottom.

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