Automatic production equipment and production method for filter press sealing gasket

Abstract

The present application relates to filter press sealing gasket automatic production equipment, including heating box, the opening for the mold to go in and out is arranged on two side walls of heating box respectively, two groups of guide rails are arranged in parallel in heating box, each guide rail is composed of two parallel guide rails, each guide rail extends outward through the opening of heating box;Two groups of guide rails are first guide rail and second guide rail, one end of first guide rail extends to injection station, one end of second guide rail extends to mold opening station, injection station and mold opening station are located on the same side of heating box, first transfer mechanism for transferring mold from first guide rail to second guide rail is arranged on the other side of heating box, second transfer mechanism for transferring mold from mold opening station to injection station is arranged outside injection station and mold opening station. The production efficiency of sealing gasket is greatly improved by the present application, the sealing gasket assembly line production is formed, time and labor are saved.

Description

Technical Field

[0001] This invention relates to the field of gasket manufacturing technology, and in particular to automated production equipment and methods for filter press gaskets. Background Technology

[0002] Plate and frame filter presses have advantages such as high filtration driving force, high solids content in the filter cake, clear filtrate, and high solids recovery rate, and are widely used in some wastewater treatment plants. Frame-shaped sealing gaskets are installed between adjacent filter plates in a plate and frame filter press to improve the sealing performance between the plates.

[0003] Currently, the production of sealing gaskets involves first heating and melting the raw material, then adding it to a mold for heating and holding at that temperature for a period of time. After molding, the sealing gaskets are removed from the mold and transferred in batches to an insulated vulcanizing chamber. The heating and holding process requires individual molding of each sealing gasket, which is time-consuming, inefficient, and cannot be automated. After molding, the semi-finished sealing gaskets are removed from the mold and then batched and placed in the vulcanizing chamber, requiring two sets of equipment. Between these two steps, workers need to transfer the products, which is time-consuming, labor-intensive, inefficient, and costly. Furthermore, the sealing gaskets need to be stacked during vulcanization; due to their frame-like structure, they are particularly prone to bending and deformation, affecting product quality. Therefore, there is an urgent need for sealing gasket production equipment and methods that can improve production efficiency, reduce production costs, and enhance product quality. Summary of the Invention

[0004] This invention addresses the shortcomings of existing technologies by providing automated production equipment and methods for filter press gaskets.

[0005] In a first aspect, the present invention provides an automatic production equipment for filter press sealing gaskets, comprising a heating chamber, with openings for mold entry and exit on two side walls of the heating chamber, and two sets of guide rails arranged in parallel inside the heating chamber, each set of guide rails consisting of two parallel guide rails, each guide rail extending outward through the opening of the heating chamber; the two sets of guide rails are a first guide rail and a second guide rail, one end of the first guide rail extending to the injection station, and one end of the second guide rail extending to the mold opening station, the injection station and the mold opening station being located on the same side of the heating chamber, a first transfer mechanism for transferring the mold from the first guide rail to the second guide rail being provided on the other side of the heating chamber, and a second transfer mechanism for transferring the mold from the mold opening station to the injection station being provided outside the injection station and the mold opening station.

[0006] Preferably, the first transfer mechanism includes two parallel first slide rails, a first transfer vehicle mounted on the first slide rails and capable of moving along the first slide rails, and a first drive member for driving the first transfer vehicle to move.

[0007] Preferably, the first transfer carriage includes a first slider mounted on a first slide rail and two parallel first transfer guide rails mounted on the first slider. The first transfer guide rails are perpendicular to the first slide rail and can dock with either the first guide rail or the second guide rail.

[0008] Preferably, the first driving component includes a first driving motor and a first lead screw connected to the output shaft of the first driving motor. A first movable block is mounted on the first lead screw, and two first sliders are connected by a first connecting rod. The first movable block is mounted on the first connecting rod. The rotation of the first driving motor drives the first lead screw to rotate, and the first movable block moves along the first lead screw, thereby causing the first sliders to move along the first slide rail, realizing the movement of the first transfer vehicle.

[0009] Preferably, a first pushing mechanism for pushing the mold from the first transfer guide rail to the second guide rail is installed on one side of the first transfer mechanism. The first pushing mechanism is a hydraulic cylinder. When the first transfer guide rail is aligned with the second guide rail, the first transfer guide rail can receive the mold from the first guide rail. When the first transfer guide rail is aligned with the second guide rail, the first pushing mechanism pushes the mold from the first transfer guide rail to the second guide rail.

[0010] Preferably, the second transfer mechanism includes two parallel second slide rails, a second transfer vehicle mounted on the second slide rails and capable of moving along the second slide rails, and a second drive unit for driving the second transfer vehicle to move.

[0011] Preferably, the second transfer carriage includes a second slider mounted on a second slide rail and two parallel second transfer guide rails mounted on the second slider. The second transfer guide rails are perpendicular to the second slide rail and can dock with the first guide rail or the second guide rail.

[0012] Preferably, the second driving component includes a second drive motor and a second lead screw connected to the output shaft of the second drive motor. A second movable block is mounted on the second lead screw, and the two second sliders are connected by a second connecting rod, with the second movable block mounted on the second connecting rod. The rotation of the second drive motor drives the second lead screw to rotate, causing the second movable block to move along the second lead screw, thereby moving the second sliders along the second slide rail, thus realizing the movement of the second transfer vehicle.

[0013] Preferably, a second mold-pushing mechanism, which is a hydraulic cylinder, is installed on one side of the second transfer mechanism to push the mold from the second transfer guide rail to the first guide rail. When the second transfer guide rail is aligned with the first guide rail, the second transfer guide rail can receive the mold from the second guide rail. After the mold is opened and unloaded at the mold opening station, it is pushed onto the second transfer guide rail. When the second transfer guide rail is aligned with the first guide rail, the mold on the second transfer guide rail is pushed onto the first guide rail by the second mold-pushing mechanism.

[0014] Preferably, multiple molds are arranged in close succession on the first guide rail and the second guide rail, and one mold is on the first transfer guide rail or the second transfer guide rail. Each mold has a moving wheel installed at its bottom that can move along the first guide rail, the second guide rail, the first transfer guide rail, and the second transfer guide rail.

[0015] Preferably, an injection mechanism for injecting raw materials into the mold cavity is provided above the injection station. The injection mechanism includes an injection head located above the mold and capable of moving along the frame-shaped path of the mold cavity while injecting material into the mold cavity. The injection head is connected to the discharge port of the mixing tank of the casting machine through a material conveying hose.

[0016] Preferably, two parallel injection slides are provided on the front and rear sides of the first guide rail, and an injection slider that can move along the injection slide is installed in each injection slide. A transverse slide is connected between the two injection sliders, and an injection moving block that can move along the transverse slide is installed in the transverse slide. The injection head is installed on the injection moving block.

[0017] Preferably, a first rack and pinion drive assembly for driving the injection slider to move along the injection slide is installed in each injection slide, and a second rack and pinion drive assembly for driving the injection moving block to move along the transverse slide is installed in the transverse slide. The first rack and pinion drive assembly drives the two injection sliders to move along the injection slide, causing the transverse slide and the injection moving block to move in the left-right direction for injection onto the front and rear sides of the mold cavity. The second rack and pinion drive assembly drives the injection moving block to move in the front-back direction for injection onto the left and right sides of the mold cavity.

[0018] Preferably, in order to ensure stable movement of the injection head and prevent the conveying hose from interfering with normal operation, the conveying hose is supported by a support assembly, which includes a horizontally arranged support rod, a vertically arranged upright rod, and a support bracket for supporting the conveying hose.

[0019] Preferably, the lower end of the upright is rotatably connected to the injection slider, and the upper end of the upright is fixed to one end of the support rod. A horizontal slide bar is installed on the support rod, and a slide block is installed on the slide bar. The slide block can move along the slide bar. The upper end of the support bracket is fixed to the slide block via a connecting rod. The support bracket can be bent in the horizontal direction, and the material delivery hose passes through the support bracket. The material delivery hose is supported by the support assembly, allowing the material delivery hose to bend freely as the injection head moves.

[0020] Preferably, a mold opening mechanism for removing the sealing gasket inside the mold is provided above the mold opening station.

[0021] Preferably, multiple lifting rings are installed on both the inner and outer molds of the mold. The mold opening mechanism is a crane with multiple hooks installed on it. After connecting the hooks to the lifting rings, the inner and outer molds are lifted to complete the mold opening and unloading.

[0022] Preferably, an electric heating wire is installed inside the heating box, and heat is supplied by heating the electric heating wire.

[0023] Preferably, a sealing plate for opening or closing the opening is installed at each opening of the heating box. In this embodiment, each sealing plate is driven by a cylinder to open or close the opening. The upper end of the sealing plate is hinged to the heating box, the outer cylinder of the cylinder is hinged to the heating box, and the inner rod of the cylinder is hinged to the sealing plate.

[0024] In a second aspect, the present invention provides a method for producing sealing gaskets using the above-mentioned production equipment, comprising the following steps: (1) injecting material into a mold through an injection mechanism, and pushing the mold after injection into a heating box to a temperature of 80°C-85°C through a second pushing mechanism, and then pushing it onto a first transfer vehicle after keeping it at a temperature of 1 hour.

[0025] (2) The mold is pushed into the heating box again by the first mold pushing mechanism and heated to 80℃-85℃. After being kept warm for 1 hour, it is pushed to the unloading station. After being air-cooled for 20-25 minutes, it is demolded and unloaded to obtain the sealing gasket product.

[0026] In a third aspect, the present invention provides a sealing gasket produced using the above-described method.

[0027] The beneficial effects of this invention are as follows:

[0028] This invention greatly improves the production efficiency of sealing gaskets, forming a sealing gasket assembly line production, saving time and labor, requiring less manpower, and reducing production costs; the products produced by this invention have stable and high quality. Attached Figure Description

[0029] Figure 1 This is a top view of the heating box of the present invention after being horizontally cut open;

[0030] Figure 2 This is a top view of the structure of the present invention in a working state;

[0031] Figure 3 This is a top view of the structure of the present invention in a working state;

[0032] Figure 4 This is a top view of the structure of the present invention in a working state;

[0033] Figure 5 This is a front view structural schematic diagram of the first transfer mechanism of the present invention;

[0034] Figure 6 This is a schematic diagram of the left side of the heating box of the present invention after longitudinal sectioning;

[0035] Figure 7 This is a schematic diagram of the structure of the support component of the present invention;

[0036] As shown in the figure:

[0037] 1. Heating box; 2. Mold; 3. First guide rail; 4. Second guide rail; 5. First slide rail; 6. First slider; 7. First transfer guide rail; 8. First drive motor; 9. First lead screw; 10. First moving block; 11. First connecting rod; 12. First film pushing mechanism; 13. Second slide rail; 14. Second slider; 15. Second transfer guide rail; 16. Second drive motor; 17. Second lead screw; 18. Second moving block; 19. Second connecting rod; 20. Second film pushing mechanism; 21. Injection head; 22. Material conveying hose; 23. Injection slide; 24. Injection slider; 25. Transverse slide; 26. Injection moving block; 27. Support rod; 28. Vertical rod; 29. ​​Support bracket; 30. Slide rod; 31. Slide seat; 32. Connecting rod. Detailed Implementation

[0038] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0039] like Figure 1-6 As shown, the present invention includes a heating chamber 1. Openings for the mold 2 to enter and exit are respectively provided on two side walls of the heating chamber 1. Two sets of guide rails are arranged in parallel inside the heating chamber 1. Each set of guide rails consists of two parallel guide rails, and each guide rail extends outward through the opening of the heating chamber 1. The two sets of guide rails are a first guide rail 3 and a second guide rail 4. One end of the first guide rail 3 extends to the injection station, and one end of the second guide rail 4 extends to the mold opening station. The injection station and the mold opening station are located on the same side of the heating chamber 1. A first transfer mechanism for transferring the mold 2 from the first guide rail 3 to the second guide rail 4 is provided on the other side of the heating chamber 1. A second transfer mechanism for transferring the mold 2 from the mold opening station to the injection station is provided outside the injection station and the mold opening station.

[0040] The first transfer mechanism includes two parallel first slide rails 5, a first transfer vehicle mounted on the first slide rails 5 and movable along the first slide rails 5, and a first drive component for driving the first transfer vehicle. The first transfer vehicle includes a first slider 6 mounted on the first slide rail 5 and two parallel first transfer guide rails 7 mounted on the first slider 6. The first transfer guide rails 7 are perpendicular to the first slide rails 5 and can dock with either the first guide rail 3 or the second guide rail 4.

[0041] The first driving component includes a first drive motor 8 and a first lead screw 9 connected to the output shaft of the first drive motor 8. A first moving block 10 is mounted on the first lead screw 9. Two first sliders 6 are connected by a first connecting rod 11, and the first moving block 10 is mounted on the first connecting rod 11. The rotation of the first drive motor 8 drives the first lead screw 9 to rotate, and the first moving block 10 moves along the first lead screw 9, thereby causing the first sliders 6 to move along the first slide rail 5, realizing the movement of the first transfer vehicle.

[0042] A first pushing mechanism 12, which is a hydraulic cylinder, is installed on one side of the first transfer mechanism to push the mold 2 from the first transfer guide rail 7 to the second guide rail 4. When the first transfer guide rail 7 is connected to the first guide rail 3, the first transfer guide rail 7 can receive the mold 2 from the first guide rail 3. When the first transfer guide rail 7 is connected to the second guide rail 4, the first pushing mechanism 12 pushes the mold 2 on the first transfer guide rail 7 onto the second guide rail 4.

[0043] The second transfer mechanism includes two parallel second slide rails 13, a second transfer carriage mounted on the second slide rails 13 and movable along the second slide rails 13, and a second drive unit for driving the second transfer carriage. The second transfer carriage includes a second slider 14 mounted on the second slide rails 13 and two parallel second transfer guide rails 15 mounted on the second slider 14. The second transfer guide rails 15 are perpendicular to the second slide rails 13 and can dock with the first guide rail 3 or the second guide rail 4.

[0044] The second driving component includes a second drive motor 16 and a second lead screw 17 connected to the output shaft of the second drive motor 16. A second moving block 18 is mounted on the second lead screw 17. Two second sliders 14 are connected by a second connecting rod 19, and the second moving block 18 is mounted on the second connecting rod 19. The rotation of the second drive motor 16 drives the second lead screw 17 to rotate, and the second moving block 18 moves along the second lead screw 17, thereby causing the second sliders 14 to move along the second slide rail 13, realizing the movement of the second transfer car.

[0045] A second pushing mechanism 20, which is a hydraulic cylinder, is installed on one side of the second transfer mechanism to push the mold 2 from the second transfer guide rail 15 to the first guide rail 3. When the second transfer guide rail 15 is connected to the second guide rail 4, the second transfer guide rail 15 can receive the mold 2 from the second guide rail 4. After the mold 2 is opened and unloaded at the mold opening station, it is pushed onto the second transfer guide rail 15. When the second transfer guide rail 15 is connected to the first guide rail 3, the mold 2 on the second transfer guide rail 15 is pushed onto the first guide rail 3 by the second pushing mechanism 20.

[0046] Multiple molds 2 are arranged in close succession on the first guide rail 3 and the second guide rail 4. There is one mold 2 on the first transfer guide rail 7 or the second transfer guide rail 15. Each mold 2 has a moving wheel installed at its bottom that can move along the first guide rail 3, the second guide rail 4, the first transfer guide rail 7, and the second transfer guide rail 15.

[0047] An injection mechanism for injecting raw materials into the mold cavity of mold 2 is provided above the injection station. The injection mechanism includes an injection head 21 located above mold 2 and capable of moving along the frame-shaped path of the mold cavity while injecting material into the mold cavity. The injection head 21 is connected to the discharge port of the mixing tank of the casting machine through a material conveying hose 22.

[0048] Two parallel injection slides 23 are respectively provided on the front and rear sides of the first guide rail 3. An injection slider 24 that can move along the injection slide 23 is installed in each injection slide 23. A transverse slide 25 connects the two injection sliders 24. An injection moving block 26 that can move along the transverse slide 25 is installed in the transverse slide 25, and the injection head 21 is mounted on the injection moving block 26. A first gear and rack transmission assembly for driving the injection slider 24 to move along the injection slide 23 is installed in each injection slide 23, and a second gear and rack transmission assembly for driving the injection moving block 26 to move along the transverse slide 25 is installed in the transverse slide 25. The structure and working principle of the gear and rack transmission assembly are existing technologies and will not be described in detail here. The first gear and rack transmission assembly drives the two injection sliders 24 to move along the injection slide 23, causing the transverse slide 25 and the injection moving block 26 to move in the left and right directions to inject material into the front and rear sides of the mold cavity. The second gear and rack transmission assembly drives the injection moving block 26 to move in the front and rear directions to inject material into the left and right sides of the mold cavity.

[0049] like Figure 7 As shown, to ensure stable movement of the injection head 21 and prevent the delivery hose 22 from obstructing normal operation, the delivery hose 22 is supported by a support assembly. This assembly includes a horizontally positioned support rod 27, a vertically positioned upright rod 28, and a support bracket 29 for supporting the delivery hose 22. The lower end of the upright rod 28 is rotatably connected to the injection slider 24, and the upper end of the upright rod 28 is fixed to one end of the support rod 27. A horizontal sliding rod 30 is mounted on the support rod 27, and a sliding seat 31 is mounted on the sliding rod 30. The sliding seat 31 can move along the sliding rod 30. The upper end of the support bracket 29 is fixed to the sliding seat 31 via a connecting rod 32. The support bracket 29 can be bent horizontally, and the delivery hose 22 passes through it. By supporting the delivery hose 22 with the support assembly, the delivery hose 22 can bend freely as the injection head 21 moves.

[0050] A mold-opening mechanism for removing the inner sealing gasket of mold 2 is provided above the mold-opening station. In this embodiment, the mold 2 adopts the mold 2 structure disclosed in the patent application No. 202320894706.1, entitled "Molding Device for Sealing Gasket Production". Multiple lifting rings are installed on both the inner mold and the outer mold of mold 2. The mold-opening mechanism is a crane with multiple hooks installed on it. After connecting the hooks to the lifting rings, the inner mold and the outer mold are lifted to complete the mold opening and unloading.

[0051] An electric heating wire is installed inside the heating box 1 to provide heat. The structure and working principle of the heating box 1 adopt existing technology and will not be described in detail here. Each opening of the heating box 1 is equipped with a sealing plate for opening or closing the opening. In this embodiment, each sealing plate is driven by a cylinder to open or close the opening. The upper end of the sealing plate is hinged to the heating box 1, the outer cylinder of the cylinder is hinged to the heating box 1, and the inner rod of the cylinder is hinged to the sealing plate.

[0052] The method for producing gaskets using the aforementioned automated gasket production equipment includes the following steps:

[0053] (1) Material is injected into mold 2 through injection mechanism, and mold 2 with material injection completed is pushed into heating box 1 by second film pushing mechanism 20 and heated to 80℃-85℃. After being kept warm for 1 hour, it is pushed onto the first transfer car.

[0054] (2) The mold 2 is pushed into the heating box 1 again by the first pushing mechanism 12 and heated to 80℃-85℃. After being kept warm for 1 hour, it is pushed to the unloading station. After being air-cooled for 20-25 minutes, it is demolded and unloaded to obtain the sealing gasket product.

[0055] In practice, at the beginning of the work, due to the insufficient number of molds 2 on the production line, it was not possible to push molds 2 together. The staff used long rods to push molds 2 to assist in moving them. After working for a period of time, when there were enough molds 2 to form a production line where molds 2 could push molds 2 together, there was no need for staff to push molds 2. The following describes the operation when there are enough molds 2. Mold 2 completes the injection at the injection station. After injection, mold 2 is pushed into heating box 1 by the second pushing mechanism 20. One mold 2 in heating box 1 is ejected to the first transfer car for cooling. The mold 2 in the first transfer car is pushed onto the second guide rail 4 in heating box 1 by the first pushing mechanism 12. One mold 2 in heating box 1 is ejected to the mold opening station. At the mold opening station, the material is unloaded. After unloading, the empty mold 2 is transferred to the second transfer car by a crane. Then, the mold 2 in the first transfer car is pushed to the injection station by the second pushing mechanism 20 to complete the injection. The above process is repeated to produce sealing gaskets, forming a sealing gasket assembly line production, which greatly improves work efficiency.

[0056] This invention greatly improves the production efficiency of sealing gaskets, forming a sealing gasket assembly line production, saving time and labor, requiring less manpower, and reducing production costs; the products produced by this invention have stable and high quality.

[0057] Of course, the above description is not limited to the examples above. Technical features not described in this invention can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solutions of this invention and are not intended to limit this invention. This invention has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this invention do not depart from the spirit of this invention and should also fall within the scope of protection of the claims of this invention.

Claims

1. An automatic production equipment for filter press sealing gaskets, characterized in that: The device includes a heating chamber with openings on both side walls for mold entry and exit. Two sets of guide rails are arranged parallel to each other inside the heating chamber, each set consisting of two parallel guide rails extending outwards from the heating chamber openings. These two sets of guide rails are designated as a first guide rail and a second guide rail. One end of the first guide rail extends to the injection station, and one end of the second guide rail extends to the mold opening station. The injection station and the mold opening station are located on the same side of the heating chamber. A first transfer mechanism is provided on the other side of the heating chamber to transfer the mold from the first guide rail to the second guide rail. A second transfer mechanism is provided outside the injection station and the mold opening station to transfer the mold from the mold opening station to the injection station.

2. The automatic production equipment for filter press sealing gaskets according to claim 1, characterized in that: The first transfer mechanism includes two parallel first slide rails, a first transfer vehicle mounted on the first slide rails and capable of moving along the first slide rails, and a first drive component that drives the first transfer vehicle to move.

3. The automatic production equipment for filter press gaskets according to claim 2, characterized in that: The first transfer carriage includes a first slider mounted on a first slide rail and two parallel first transfer guide rails mounted on the first slider. The first transfer guide rails are perpendicular to the first slide rail and can dock with either the first guide rail or the second guide rail.

4. The automatic production equipment for filter press gaskets according to claim 3, characterized in that: A first mold-pushing mechanism for pushing the mold from the first transfer guide rail to the second guide rail is installed on one side of the first transfer mechanism.

5. The automatic production equipment for filter press sealing gaskets according to claim 1, characterized in that: The second transfer mechanism includes two parallel second slide rails, a second transfer vehicle mounted on the second slide rails and capable of moving along the second slide rails, and a second drive unit that drives the second transfer vehicle to move.

6. The automatic production equipment for filter press gaskets according to claim 5, characterized in that: The second transfer carriage includes a second slider mounted on a second slide rail and two parallel second transfer guide rails mounted on the second slider. The second transfer guide rails are perpendicular to the second slide rail and can dock with the first guide rail or the second guide rail.

7. The automatic production equipment for filter press sealing gaskets according to claim 1, characterized in that: An injection mechanism for injecting raw materials into the mold cavity is provided above the injection station. The injection mechanism includes an injection head located above the mold and capable of moving along the frame-shaped path of the mold cavity while injecting material into the mold cavity. The injection head is connected to the discharge port of the mixing tank of the casting machine through a material conveying hose.

8. The automatic production equipment for filter press gaskets according to claim 1, characterized in that: Two parallel injection slides are provided on the front and rear sides of the first guide rail. An injection slider that can move along the injection slide is installed in each injection slide. A transverse slide is connected between the two injection sliders. An injection moving block that can move along the transverse slide is installed in the transverse slide. The injection head is installed on the injection moving block.

9. A method for producing sealing gaskets using the production equipment according to any one of claims 1-8, characterized in that, Includes the following steps: (1) The material is injected into the mold through the injection mechanism, and the mold after injection is pushed into the heating box by the second mold pushing mechanism and heated to 80℃-85℃. After being kept at the temperature for 1 hour, it is pushed onto the first transfer car. (2) The mold is pushed into the heating box again by the first mold pushing mechanism and heated to 80℃-85℃. After keeping it warm for 1 hour, it is pushed to the unloading station. After air cooling for 20-25 minutes, the mold is demolded and unloaded to obtain the sealing gasket product.

10. A sealing gasket produced using the method of claim 9.

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