A demolding device for a rectangular ring mold

Abstract

This utility model discloses a demolding device for a rectangular ring mold, specifically relating to the field of rectangular ring mold technology. It includes a main frame, on which a first driving mechanism is mounted, and an ejector mechanism is connected. A casting mechanism is mounted on the main frame, containing a mold core. A driving system is also mounted on the main frame. The casting mechanism includes a first template, a second template, a third template, and a fourth template. The mold core includes a first mold core, a second mold core, and a third mold core. The first mold core has an opening. A protrusion is fixedly mounted on the bottom surface of the second mold core. The first mold core is mounted on the second template. The second mold core is mounted on the third template. The third mold core is mounted on the fourth template. As a further embodiment of this utility model, the first driving mechanism includes a first cylinder, which is fixedly mounted on the bottom surface of the main frame. Using this structure, rapid and stable demolding of the rectangular ring mold can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of rectangular ring mold technology, and specifically to a demolding device for a rectangular ring mold. Background Technology

[0002] The rectangular ring is a key sealing element in the braking system. Its main function is to prevent brake fluid leakage and ensure effective transmission of hydraulic pressure, thereby achieving reliable braking performance. It maintains stable sealing performance under high temperature, high pressure, and low temperature conditions, and resists chemical corrosion from brake fluid and the intrusion of external contaminants. Furthermore, the rectangular ring extends the service life of the braking system by reducing friction between the piston and cylinder wall, while also accommodating frequent reciprocating motion, ensuring rapid and reliable braking response.

[0003] In existing technology, rectangular ring molds employ a two-plate structure design. Because the inner circle of the product needs to meet surface roughness requirements, the mold core is intentionally designed with increased roughness. The upper and lower ends of the mold are parted, resulting in a larger stress area for the upper mold core after mold opening. Workers remove the upper mold from the product to complete the material removal operation, and the current demolding method is single-cavity demolding.

[0004] The above technology also has the following problems: Workers directly contact the mold core during material handling, which easily leads to bumps and scratches on the mold core, thus prolonging the mold repair cycle and severely shortening the mold's lifespan. Furthermore, this operation requires workers to have a high level of demolding experience, involves a long demolding assistance time, and may require the use of tools during demolding, further increasing the complexity and time cost of the operation. At the same time, demolding a single cavity also affects production efficiency. Utility Model Content

[0005] The purpose of this utility model is to provide a demolding device for a rectangular ring mold. By designing a device including a main frame, a casting mechanism, a mold core, and an ejection mechanism, it solves the problems in the demolding process of rectangular ring molds in the prior art, such as easy damage to the mold core, low demolding efficiency, and high requirements for workers' demolding experience.

[0006] The objective of this utility model can be achieved through the following technical solutions: A demolding device for a rectangular ring mold includes a main frame, a first drive mechanism mounted on the main frame, an ejection mechanism connected to the first drive mechanism, a casting mechanism mounted on the main frame, a mold core disposed inside the casting mechanism, and a drive system mounted on the main frame. The casting mechanism includes a first template, a second template, a third template, and a fourth template; The mold core includes a first mold core, a second mold core, and a third mold core; the first mold core has an opening; the bottom surface of the second mold core has a protrusion fixedly provided inside; a cavity is formed between the second mold core and the third mold core; The first mold core is disposed on the second template; the second mold core is disposed on the third template; and the third mold core is disposed on the fourth template. As a further embodiment of this invention: the first driving mechanism includes a first cylinder, which is fixedly disposed on the bottom surface of the main frame.

[0007] As a further embodiment of this utility model: the protrusion includes a trapezoidal protrusion.

[0008] As a further embodiment of this utility model: the cavity includes a rectangular cavity, and the trapezoidal protrusion is located at the bottom of the rectangular cavity.

[0009] As a further embodiment of this utility model: the bottom surface of the first template is provided with two rectangular protrusions, and the second template is provided with two rectangular grooves. The rectangular grooves and the rectangular protrusions cooperate with each other so that the rectangular protrusions can be embedded in the rectangular grooves.

[0010] As a further embodiment of this utility model: the two rectangular protrusions are symmetrically distributed along the centerline of the length direction of the first template, and the length direction of the rectangular protrusions is parallel to the width direction of the first template; The two rectangular grooves are symmetrically distributed along the centerline of the width direction of the second template, and the length direction of the rectangular grooves is parallel to the length direction of the second template.

[0011] As a further embodiment of this utility model: the second template has a first through hole, and the first mold core is disposed inside the first through hole; the third template has a second through hole; and the second mold core is disposed inside the second through hole.

[0012] As a further embodiment of this utility model: the first mold core and the first through hole are connected in a mating manner, and there is a sealing groove between the first mold core and the second template.

[0013] As a further embodiment of this utility model: the fourth template is fixedly provided with movable bases on both sides along the length direction, and a guide rail is provided on the other side of the movable base. The fourth template slides on the guide rail through the movable base. A baffle is fixedly provided on one side of the guide rail and the baffle is fixedly connected to the main frame.

[0014] As a further embodiment of this utility model: the ejection mechanism is disposed below the fourth template, and the top surface of the ejection mechanism is provided with multiple sets of ejection mold cores.

[0015] The beneficial effects of this utility model are: By activating each cylinder, the mold plates and mold cores in the casting mechanism are separated and moved in a set sequence.

[0016] First, the first and second mold plates are separated. Then, the second and third mold plates are separated, during which the second mold plate moves the first mold core upwards. Next, the third and fourth mold plates are separated, with the third mold plate moving the second mold core upwards. Because of the trapezoidal protrusion at the bottom of the rectangular cavity, the rectangular ring product is guided upwards with the second mold core, achieving initial demolding. Afterwards, the fourth mold plate moves the third mold core backwards. Finally, after the fourth mold plate has moved into position, the third mold plate descends and resets. At this time, the ejector mechanism moves upwards, and its ejector core contacts and ejects the rectangular rubber ring product formed within the second mold core, successfully demolding.

[0017] This technology effectively solves a series of problems in existing technologies, such as easy damage to the mold core, low demolding efficiency, and high requirements for workers' demolding experience, significantly improving production efficiency and product quality. It enables efficient demolding of rectangular molds, greatly optimizes the production process, reduces the labor intensity of workers, lowers production costs, and makes the entire demolding process more efficient and convenient. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the casting mechanism in this utility model; Figure 3 This is a schematic diagram of the internal structure of the mold core in this utility model; Figure 4 This is a utility model Figure 3 Enlarged structural diagram of section A; Figure 5 This is a schematic diagram of the overall structure of the first template in this utility model; Figure 6 This is a schematic diagram of the overall structure of the second template in this utility model; Figure 7 This is a schematic diagram of the internal structure of the second template in this utility model; Figure 8 This is a utility model Figure 7 Enlarged structural diagram of section A; Figure 9 This is a schematic diagram of the overall structure of the third template in this utility model; Figure 10 This is a schematic diagram of the internal structure of the third template in this utility model; Figure 11 This is a utility model Figure 10 Enlarged structural diagram of section A; Figure 12 This is a schematic diagram of the overall structure of the fourth template and the ejection mechanism in this utility model; Figure 13 This is a schematic diagram of the overall structure of the ejection mechanism in this utility model; Figure 14 This is a schematic diagram of the internal structure of the ejector core in this utility model; Figure 15 This is a schematic diagram of the rectangular rubber ring structure ejected from the ejector core in this utility model.

[0020] In the diagram: 100, casting mold mechanism; 101, first template; 1011, rectangular protrusion; 102, second template; 1021, rectangular groove; 1022, first through hole; 103, third template; 1031, second through hole; 1032, extension plate; 104, fourth template; 200, mold core; 201, first mold core; 202, second mold core; 203, third mold core; 204, trapezoidal protrusion; 205, frustum hole; 206, rectangular cavity; 300, ejection mechanism; 301, ejection mold core; 400, first cylinder; 500, second cylinder; 600, third cylinder; 700, fourth cylinder; 800, fifth cylinder; 900, main frame. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1-15 As shown, this utility model provides a demolding device for a rectangular ring mold. The demolding device includes a main frame 900, and a first driving mechanism is provided on the bottom surface inside the main frame 900. The first driving mechanism includes a first cylinder 400, and an ejection mechanism 300 is connected to the telescopic rod of the first cylinder 400. A casting mechanism 100 is provided inside the main frame 900, and the casting mechanism 100 is located above the ejection mechanism 300. The first cylinder 400 is used to drive the ejection mechanism 300 to move closer to the casting mechanism 100. A mold core 200 is provided inside the casting mechanism 100.

[0023] The aforementioned frame 900 is equipped with a drive system, which includes a second drive mechanism, a third drive mechanism, a fourth drive mechanism, and a fifth drive mechanism. The drive system is used to drive the casting mechanism 100 to close the mold.

[0024] The second drive mechanism includes a second cylinder 500, which is located on one side of the main frame 900 along its length. The telescopic rod of the second cylinder 500 is connected to the molding mechanism 100.

[0025] The third drive mechanism includes two third cylinders 600, which are symmetrically arranged on both sides of the width direction of the main frame 900. The telescopic rods of the two third cylinders 600 are connected to the casting mechanism 100, and the two sets of third cylinders 600 are located on both sides close to the second cylinder 500.

[0026] Both the fourth and fifth drive mechanisms are located above the casting mechanism 100. The fourth drive mechanism includes a fourth cylinder 700, which is fixedly mounted on the top surface of the main frame 900. The telescopic rod of the fourth cylinder 700 is connected to the casting mechanism 100. The fifth drive mechanism includes two fifth cylinders 800, which are symmetrically arranged on both sides of the width direction of the main frame 900. The telescopic rods of the two sets of fifth cylinders 800 are connected to the casting mechanism 100.

[0027] During operation, firstly, the fourth cylinder 700, the fifth cylinder 800, the third cylinder 600, and the second cylinder 500 are activated in sequence to separate the various parts of the casting mechanism 100. Then, the first cylinder 400 is activated to make the ejector mechanism 300 move upward. The ejector mechanism 300 and the casting mechanism 100 cooperate with each other to complete the demolding.

[0028] By adjusting the position of the ejector mechanism 300 in space using the first cylinder 400, the ejector mechanism 300 and the molding mechanism 100 cooperate to achieve automatic ejection and separation of the rectangular mold. This significantly reduces the requirements for workers' demolding experience, shortens demolding assistance time, and improves production efficiency. Furthermore, the entire demolding process requires no additional tools, simplifying the operation and reducing time costs.

[0029] like Figure 2 As shown, the above-mentioned casting mechanism 100 includes a first template 101, a fourth cylinder 700 disposed above the first template 101, a second template 102 disposed below the first template 101, a fifth cylinder 800 fixedly disposed on both sides of the second template 102; a third template 103 disposed below the second template 102, a third cylinder 600 fixedly disposed on both sides of the third template 103; and a fourth template 104 disposed below the third template 103, a second cylinder 500 fixedly disposed on one side of the fourth template 104.

[0030] During operation, firstly, the fourth cylinder 700 is activated, driving the first template 101 upward, separating it from the second template 102. Next, the fifth cylinder 800 is activated, driving the second template 102 upward, thus separating it from the third template 103. Then, the third cylinder 600 is activated, pushing the third template 103 upward, separating it from the fourth template 104. Finally, the second cylinder 500 is activated, causing the fourth template 104 to move back and forth in a translating motion.

[0031] like Figures 3-4 As shown, the above-mentioned mold core 200 includes a third mold core 203 fixedly disposed on the upper surface of the fourth template 104, a second mold core 202 disposed above the third mold core 203, and a first mold core 201 disposed above the second mold core 202; a protrusion is provided inside the bottom surface of the second mold core 202, the protrusion including a trapezoidal protrusion 204.

[0032] Multiple openings are evenly distributed inside the first mold core 201. The openings include frustum holes 205, which penetrate the bottom and top surfaces of the first mold core 201. The frustum holes 205 are arranged along the vertical direction of the first mold core 201. The larger circular surface of the frustum holes 205 is above the smaller circular surface of the frustum holes 205, and the larger circular surface of the frustum holes 205 coincides with the top surface of the first mold core 201.

[0033] The third mold core 203 and the second mold core 202 are connected to each other. When the third mold core 203 and the second mold core 202 are connected, a cavity is formed inside the third mold core 203 and the second mold core 202. The cavity includes a rectangular cavity 206 and a trapezoidal protrusion 204 is provided at the bottom of the rectangular cavity 206.

[0034] like Figure 5 As shown, the bottom surface of the first template 101 is provided with two rectangular protrusions 1011. The two rectangular protrusions 1011 are symmetrically distributed along the center line of the length direction of the first template 101, and the length direction of the rectangular protrusions 1011 is parallel to the width direction of the first template 101. The fourth cylinder 700 is located above the first template 101, and the telescopic rod of the fourth cylinder 700 is connected to the first template 101.

[0035] During operation, the first template 101 moves up and down under the action of the fourth cylinder 700.

[0036] like Figure 6As shown, the second template 102 has two rectangular grooves 1021. The two rectangular grooves 1021 are symmetrically distributed along the centerline of the width direction of the second template 102, and the length direction of the rectangular grooves 1021 is parallel to the length direction of the second template 102. The rectangular grooves 1021 and the rectangular protrusions 1011 cooperate with each other so that the rectangular protrusions 1011 can be embedded in the rectangular grooves 1021.

[0037] Multiple sets of first through holes 1022 are provided through the bottom surface of each rectangular groove 1021. The first through holes 1022 are symmetrically distributed along the center line of the length direction and the center line of the width direction of the rectangular groove 1021, respectively. L-shaped blocks are fixedly provided on both sides of the second template 102, and the L-shaped blocks are located on both sides of the length direction of the rectangular groove 1021. The fifth cylinder 800 is fixedly provided above the L-shaped blocks, and the telescopic rod of the fifth cylinder 800 is connected to the L-shaped blocks.

[0038] During operation, the second template 102 moves up and down under the action of the fifth cylinder 800.

[0039] like Figures 7-8 As shown, the first mold core 201 is disposed inside the first through hole 1022, the first mold core 201 and the first through hole 1022 are connected, and there is a sealing groove between the first mold core 201 and the second template 102.

[0040] During operation, the rubber melts when heated and flows into the sealing groove, forming a snap-fit ​​between the first mold core 201 and the second template 102. After the rubber melts for the first time, it flows into and fills the sealing groove. After the rubber vulcanizes, it solidifies into a stable state, forming a snap-fit ​​between the first mold core 201 and the second template 102. During subsequent production, the rubber cannot flow in, thus forming a sealing effect and preventing the first mold core 201 from falling off under the action of gravity when the second template 102 moves up and down.

[0041] like Figures 9-10 As shown, the third template 103 has multiple sets of second through holes 1031, and the second through holes 1031 and the first through holes 1022 are correspondingly arranged. Extension plates 1032 are provided on both sides of the third template 103 along the length direction. The telescopic rod of the third cylinder 600 is fixedly connected to the extension plates 1032.

[0042] During operation, the third template 103 moves up and down under the action of the third cylinder 600.

[0043] The second mold core 202 is disposed inside the second through hole 1031, and the second mold core 202 and the second through hole 1031 are connected in a cooperative manner.

[0044] During operation, the second mold core 202 moves up and down in translating motion along with the third template 103.

[0045] like Figure 12 As shown, the third mold core 203 is disposed on the upper end face of the fourth template 104, and the third mold core 203 and the second through hole 1031 are disposed correspondingly; movable bases are fixedly disposed on both sides along the length direction of the fourth template 104, and guide rails are disposed on the other side of the movable bases. A baffle is fixedly disposed on one side of the guide rails, and the baffle is fixedly connected to the main frame 900.

[0046] The fourth template 104 slides on the guide rail via a movable base, and the extension plate 1032 is set above the baffle to facilitate subsequent demolding; the second cylinder 500 is set on one side along the width direction of the fourth template 104, and the telescopic rod of the second cylinder 500 is fixedly connected to the fourth template 104.

[0047] During operation, the fourth template 104 moves back and forth under the action of the second cylinder 500.

[0048] like Figures 13-15 As shown, the ejection mechanism 300 is located below the fourth template 104. Multiple ejection cores 301 are provided on the top surface of the ejection mechanism 300. The ejection cores 301 and the second through hole 1031 are correspondingly arranged. The ejection cores 301 can smoothly pass through the second core 202. During the process of passing through the second core 202, the ejection core 301 ejects a rectangular rubber ring. The first cylinder 400 is located below the fourth template 104, and the fourth template 104 and the telescopic rod of the first cylinder 400 are fixedly connected.

[0049] During operation, the ejection mechanism 300 moves up and down under the action of the first cylinder 400. When the first cylinder 400 drives the ejection mechanism 300 to rise, the ejection mold core 301 passes through the second through hole 1031, contacts the rectangular rubber ring product formed in the second mold core 202, and ejects it from the second mold core 202, completing the entire demolding process.

[0050] By using cylinders to drive the separation and movement of each template and mold core 200, this method solves the problems of workers directly contacting the mold core 200 during material handling, the high skill requirements for demolding, the long demolding assistance time, and the potential need for tools and individual cavity demolding affecting production efficiency. It avoids direct contact between workers and the mold core 200 during material handling, effectively preventing bumps and scratches on the mold core 200, achieving automatic ejection and separation of the rectangular mold, shortening demolding assistance time, and improving production efficiency. Furthermore, the entire demolding process requires no additional tools, simplifying the operation and reducing time costs.

[0051] The working principle of this utility model: During operation, by activating the cylinders, the mold plates and mold cores in the casting mechanism 100 are separated and moved in a set sequence. First, the fourth cylinder 700 drives the first mold plate 101 to rise, separating the first mold plate 101 from the second mold plate 102. Subsequently, the fifth cylinder 800 drives the second mold plate 102 to rise, separating it from the third mold plate 103. During the rise of the second mold plate 102, the first mold core 201 moves upward.

[0052] Next, the third cylinder 600 pushes the third template 103 upward, completing the separation of the third template 103 from the fourth template 104. During the upward movement of the third template 103, the second mold core 202 moves upward. Since a trapezoidal protrusion 204 is provided at the bottom of the second mold core 202, the trapezoidal protrusion 204 can guide the rectangular ring product to rise together with the second mold core 202 during the upward movement of the second mold core 202, thereby achieving initial demolding.

[0053] Then, the second cylinder 500 drives the fourth mold plate 104 to move backward, and during the backward movement of the fourth mold plate 104, it drives the third mold core 203 to move backward, making room for the subsequent demolding operation.

[0054] Finally, after the fourth template 104 is moved to the appropriate position, the third template 103 descends and returns to its original position, which is the position where the extension plate 1032 and the baffle are in contact.

[0055] When the third template 103 descends back to its original position, the first cylinder 400 starts working, driving the ejection mechanism 300 to move upward. The ejection core 301 of the ejection mechanism 300 passes through the second through hole 1031, contacts the rectangular rubber ring product formed in the second mold core 202, and ejects it from the second mold core 202, thus successfully achieving demolding.

[0056] The entire demolding process is highly automated, eliminating the need for workers to directly contact the mold core and effectively preventing bumps and scratches. Simultaneously, the separation and movement of the mold plates and core are driven by cylinders, significantly reducing demolding assistance time and improving production efficiency. Furthermore, the entire demolding process requires no additional tools, simplifying the operation and reducing time costs.

[0057] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on this utility model. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0058] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0059] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A demolding device for a rectangular ring mold, characterized in that, Includes a main frame (900), on which a first drive mechanism is provided, and an ejection mechanism (300) is connected to the first drive mechanism; a casting mechanism (100) is provided on the main frame (900), and a mold core (200) is provided inside the casting mechanism (100); and a drive system is provided on the main frame (900). The casting mechanism includes a first template (101), a second template (102), a third template (103), and a fourth template (104); The mold core (200) includes a first mold core (201), a second mold core (202) and a third mold core (203); the first mold core (201) is provided with an opening; the bottom surface of the second mold core (202) is fixedly provided with a protrusion; a cavity is formed between the second mold core (202) and the third mold core (203); The first mold core (201) is set on the second template (102); the second mold core (202) is set on the third template (103); and the third mold core (203) is set on the fourth template (104).

2. The demolding device for a rectangular ring mold according to claim 1, characterized in that, The first drive mechanism includes a first cylinder (400), which is fixedly mounted on the bottom surface of the main frame (900).

3. The demolding device for a rectangular ring mold according to claim 1, characterized in that, The protrusion includes a trapezoidal protrusion (204).

4. The demolding device for a rectangular ring mold according to claim 3, characterized in that, The cavity includes a rectangular cavity (206), and the trapezoidal protrusion (204) is located at the bottom of the rectangular cavity (206).

5. The demolding device for a rectangular ring mold according to claim 3, characterized in that, The bottom surface of the first template (101) is provided with two rectangular protrusions (1011), and the second template (102) is provided with two rectangular grooves (1021). The rectangular grooves (1021) and the rectangular protrusions (1011) cooperate with each other so that the rectangular protrusions (1011) can be embedded in the rectangular grooves (1021).

6. The demolding device for a rectangular ring mold according to claim 5, characterized in that, The two rectangular protrusions (1011) are symmetrically distributed along the centerline of the length direction of the first template (101), and the length direction of the rectangular protrusions (1011) is parallel to the width direction of the first template (101). The two rectangular grooves (1021) are symmetrically distributed along the centerline of the width direction of the second template (102), and the length direction of the rectangular grooves (1021) is parallel to the length direction of the second template (102).

7. The demolding device for a rectangular ring mold according to claim 1, characterized in that, The second template (102) has a first through hole (1022), and the first mold core (201) is disposed inside the first through hole (1022); the third template (103) has a second through hole (1031); the second mold core (202) is disposed inside the second through hole (1031).

8. The demolding device for a rectangular ring mold according to claim 7, characterized in that, The first mold core (201) and the first through hole (1022) are connected in a cooperative manner, and there is a sealing groove between the first mold core (201) and the second template (102).

9. A demolding device for a rectangular ring mold according to claim 3, characterized in that, The fourth template (104) is fixedly provided with movable bases on both sides along the length direction. A guide rail is provided on the other side of the movable base. The fourth template (104) slides on the guide rail through the movable base. A baffle is fixedly provided on one side of the guide rail. The baffle is fixedly connected to the main frame (900).

10. A demolding device for a rectangular ring mold according to claim 9, characterized in that, The ejection mechanism (300) is located below the fourth template (104), and the top surface of the ejection mechanism (300) is provided with multiple sets of ejection mold cores (301).

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