Forming equipment and forming process of rubber sealing ring

Abstract

The invention relates to the field of sealing ring preparation, in particular to rubber sealing ring forming equipment and a forming process, the rubber sealing ring forming equipment comprises a workbench, driving ends symmetrically distributed on the workbench, a collecting box arranged in the workbench and an injection molding machine located at the top of the workbench, and the workbench further comprises hydraulic rods arranged on the opposite faces of the two driving ends; the outer wall of the hydraulic rod is sleeved with the sleeve shell, and one end of the sleeve shell is fixed to the outer wall of the driving end through a bolt. According to the invention, the problems that the formed rubber sealing rings are arranged in a rectangular array form, and rubber connecting edges formed in the injection molding process are left between the adjacent sealing rings are solved. During injection molding, a rubber solution flows through a channel in a mold, and redundant parts in the channel after molding form the leftover materials. And the demolded rubber sealing ring needs to be cut manually subsequently to remove the connecting edges, so that the problem that the preparation time of the rubber sealing ring is prolonged undoubtedly is solved.

Description

Technical Field

[0001] The present invention relates to the field of seal ring preparation, and particularly to a forming device and a forming process for a rubber seal ring. Background Art

[0002] A rubber seal ring is a component installed on various mechanical devices to play a sealing role in a static or moving state under specified temperature, pressure, and different liquids and gases. They are widely used in occasions such as automotive engine systems and piston seals in hydraulic cylinders to ensure the sealing performance and safety of the system.

[0003] For example, in the patent with the application number CN202411020180.X and the patent name "A Preparation Process and a Preparation System for a High-Performance Automotive Rubber Seal Ring", the following steps are included: Raw material preparation: Weigh appropriate raw materials according to the usage environment and performance requirements of the seal ring; Raw material mixing: Mix different materials through a mixer to ensure uniform mixing of each material; Forming: Press the mixed raw materials through a hot pressing forming device. The present invention provides a preparation process and a preparation system for a high-performance automotive rubber seal ring. Place the strip-shaped seal ring on the lower forming die, and perform hot pressing treatment by moving the lower forming die upward to close the die with the upper forming die. After the treatment is completed, when the lower forming die moves downward, the cutting assembly cuts the edge material of the seal ring on the lower forming die to separate the seal ring, and then the cutting assembly passively drives the ejection assembly to move upward to take out the seal ring from the lower forming die, realizing the coordination of cutting and ejection. Then, the cutting assembly moves to passively take out the seal ring and the edge material. However, there are still some deficiencies in the existing rubber seal ring forming devices:

[0004] In the current field of production and manufacturing of rubber sealing rings, the process method of injection molding is generally adopted after the mold is closed. Specifically, the rubber raw material is heated to a suitable flowing state and then injected into the pre-designed mold cavity. After the rubber cools and solidifies, a rubber sealing ring with a certain shape and size can be obtained. However, when the injection molding is completed and the mold is opened to take out the product, it will be found that the rubber sealing rings do not exist independently but are distributed in a regular rectangular array. Moreover, there will be some rubber connecting edges remaining between adjacent rubber sealing rings. The formation of these connecting edges is closely related to the injection molding process. During the injection molding process, in order to ensure that the rubber solution can be evenly and smoothly filled into each cavity of the mold, special channels are designed inside the mold. The rubber solution flows through these channels in the mold. When the solution fills all the cavities and cools and forms, the excess material in the channels forms the corner materials connecting adjacent sealing rings. These remaining rubber connecting edges do not meet the final use requirements of the rubber sealing rings, so they need to be removed. Currently, the industry mainly relies on manual labor to complete this cutting work. Workers need to use tools such as scissors and knives to separate each rubber sealing ring from the connecting edge. Due to the existence of the manual cutting link, the overall preparation time of the rubber sealing ring is extended from the raw material input to the final product output. This not only affects the production efficiency but also increases the production cost. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a forming device and a forming process for rubber sealing rings to solve the problem in the prior art that the formed rubber sealing rings are arranged in a rectangular array form, and there will be rubber connecting edges formed during the injection molding process remaining between adjacent sealing rings. This is because during injection molding, the rubber solution flows through the channels in the mold, and the excess part in the channels forms these corner materials after forming. Subsequently, manual cutting of the demolded rubber sealing rings is required to remove these connecting edges, which undoubtedly increases the preparation time of the rubber sealing rings.

[0006] Based on the above purpose, the present invention provides a forming device for rubber sealing rings, including a workbench, driving ends symmetrically distributed on the workbench, a collection box arranged inside the workbench, and an injection molding machine located at the top of the workbench. The workbench further includes: a hydraulic rod arranged on the opposite surfaces of the two driving ends;

[0007] A sleeve housing sleeved on the outer wall of the hydraulic rod, and one end of the sleeve housing is bolt-fixed to the outer wall of the driving end;

[0008] A fixed disk, whose outer wall is bolt-connected to the other end of the sleeve housing, and the end is provided with first sliding grooves distributed at equal angles;

[0009] An expanding and cutting structure arranged at the end of the hydraulic rod for expanding and cutting the connecting edges of the rubber sealing rings;

[0010] A demoulding structure slidably arranged on a fixed plate for slidably ejecting a rubber sealing ring from the mould

[0011] The expanding and cutting structure includes:

[0012] An adapter plate fixedly connected to the end of a hydraulic rod, moulds slidably arranged on the adapter plate and distributed at equal angles, and a driving gear disk rotatably arranged at one end of the adapter plate for rotationally driving the moulds to slide. The adapter plate is provided with activity chutes distributed at equal angles. A first slider is fixedly connected to the back of the mould. The first slider is slidably arranged in the activity chute. The driving gear disk is provided with driving grooves distributed at equal angles. A second sliding rod is fixedly connected to the outer wall of one end of the first slider, and one end of the second sliding rod is arranged in the driving groove;

[0013] The demoulding structure includes:

[0014] Adapter blocks distributed at equal angles between the fixed plate and the adapter plate, and ejector rods distributed at equal angles at one end of the adapter blocks. A first sliding rod is fixedly connected to the other end of the adapter block, and one end of the first sliding rod is arranged in the first chute.

[0015] Furthermore, fluid grooves for the rubber solution to flow through are provided in the moulds. The mould at the top of one of the adapter plates is fixedly communicated with a hose, and the hose is communicated with the output end of an injection moulding machine. The mould at the bottom of the other adapter plate is fixedly communicated with an exhaust pipe. The rubber solution is injected into the fluid grooves through the hose, and the air in the fluid grooves is discharged through the exhaust pipe.

[0016] Furthermore, a cutter array is fixedly connected to one end of the adapter plate, and the sharp ends of the cutters are all directed at the connection between the moulds.

[0017] Furthermore, an extension plate is fixedly connected to the outer wall of the fixed plate, and a motor is arranged on the extension plate. The output end of the motor penetrates through the fixed plate, and a driving gear is fixedly connected to its end.

[0018] Furthermore, the teeth of the driving gear are meshed with the teeth of the driving gear disk to drive the driving gear disk to rotate.

[0019] Furthermore, one end of the ejector rod slidably penetrates through the mould, and its end is arc-shaped and fits the injection groove in the mould.

[0020] Furthermore, a collection box is located directly below the two adapter plates for collecting the injection-moulded rubber sealing rings after the moulds are opened and closed.

[0021] A forming process for a rubber sealing ring forming device includes the following steps:

[0022] S1. Injection stage: When the molds are closed, the injection molding machine injects rubber solution into the top of the molds through a hose. The rubber solution first enters the injection slot of one of the molds, and then enters the fluid slots on both sides of the injection slot, gradually squeezing out the air in the fluid slots and discharging the gas in the molds through the exhaust pipe. Thus, discharging the air in the molds can reduce the resistance during the injection process, enabling the rubber solution to fill the molds faster and improving the injection efficiency;

[0023] S2. Expansion and cutting stage: When the injection work in step S1 is completed, the motor is started. The driving gear at its output end drives the driving gear disc to rotate by a certain angle, causing the driving slot to drive the second sliding rod to push the first slider to slide in the movable chute. The mold connected to the first slider expands outward around the axis of the connecting disc. While expanding, the connection part thereof pulls the rubber connecting edge placed in the fluid slot, and then contacts the cutting knife for cutting work, thus realizing the automatic cutting of the rubber connecting edge after the rubber sealing ring is injection molded;

[0024] S3. Demolding stage: After the rubber sealing ring is cut, the hydraulic rods on both sides contract, and the connecting disc drives the mold to slide towards the fixed disc. While sliding, the arc-shaped end of the ejector rod ejects the rubber sealing ring placed in the injection slot, and the ejected rubber sealing ring falls into the collection box directly below, thus realizing the automatic demolding and collection of the rubber sealing ring.

[0025] Advantages of the present invention: By using the forming equipment and forming process of a rubber sealing ring of the present invention, when the molds are closed, the injection molding machine injects rubber solution into the top of the molds through a hose. The rubber solution first enters the injection slot of one of the molds, and then enters the fluid slots on both sides of the injection slot, gradually squeezing out the air in the fluid slots and discharging the gas in the molds through the exhaust pipe. Thus, discharging the air in the molds can reduce the resistance during the injection process, enabling the rubber solution to fill the molds faster. After the rubber solution in the molds is cooled and injection molded, the motor is started. The driving gear at its output end drives the driving gear disc to rotate by a certain angle, causing the driving slot to drive the second sliding rod to push the first slider to slide in the movable chute. The mold connected to the first slider expands outward from the movable chute around the axis of the connecting disc. While expanding, the connection part between the molds starts to pull the rubber connecting edge placed in the fluid slot, and then the pulled rubber connecting edge contacts the sharp end of the cutting knife and is cut by the cutting knife. After the rubber sealing ring is cut, the hydraulic rods on both sides start to contract, and the connecting disc drives the mold to slide towards the fixed disc. While sliding, the arc-shaped end of the ejector rod ejects the rubber sealing ring placed in the injection slot, and the ejected rubber sealing ring falls into the collection box directly below, thus realizing the automatic demolding and collection of the rubber sealing ring. Description of the Drawings

[0026] To more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only those of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0027] Figure 1 Schematic diagram of the overall structure in the present invention;

[0028] Figure 2 Schematic diagram of another angle of the overall structure in the present invention;

[0029] Figure 3 Schematic diagram of the mold demoulding state in the present invention;

[0030] Figure 4 Schematic diagram of the closed state of the forming mold in the present invention;

[0031] Figure 5 Schematic diagram of another angle of the closed state of the forming mold in the present invention;

[0032] Figure 6 Schematic diagram of the open state of the forming mold in the present invention;

[0033] Figure 7 Schematic diagram of another angle of the open state of the forming mold in the present invention;

[0034] Figure 8 Schematic diagram of the internal components of the forming mold in the present invention;

[0035] Figure 9 For Figure 6 Enlarged view of the structure at location A.

[0036] The labels in the figure are:

[0037] 1, workbench; 2, drive end; 3, collection box; 4, fixed disk; 401, sleeve; 402, first chute; 403, extension plate; 5, connection disk; 6, exhaust pipe; 7, motor; 8, connection block; 801, first slide bar; 9, mold; 901, fluid tank; 10, first slider; 1001, second slide bar; 11, ejector rod; 12, cutter; 13, hydraulic rod; 14, drive gear disk; 1401, drive groove; 15, drive gear. Detailed implementation manners

[0038] To make the objectives, technical solutions and advantages of the present invention more clear and understandable, the following further details the present invention in combination with specific embodiments.

[0039] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the ordinary meanings understood by those with ordinary skills in the field to which the present invention pertains. The "first", "second" and similar terms used in the present invention do not denote any order, quantity or importance, but are only used to distinguish different components. Words such as "comprising" or "including" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. Words such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Upper", "lower", "left", "right", etc. are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0040] In the first aspect of the present invention, a forming device for a rubber sealing ring is proposed, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 shown, which includes a workbench 1, driving ends 2 symmetrically distributed on the workbench 1, a collection box 3 arranged in the workbench 1, and an injection molding machine located at the top of the workbench 1. The workbench 1 further includes: a hydraulic rod 13 arranged on the opposite surfaces of the two driving ends 2;

[0041] a sleeve 401 sleeved on the outer wall of the hydraulic rod 13, and one end of the sleeve 401 is bolt-fixed to the outer wall of the driving end 2;

[0042] a fixed disk 4, the outer wall of which is bolt-connected to the other end of the sleeve 401, and a first chute 402 is provided at the end in an equiangular distribution;

[0043] an expanding and cutting structure arranged at the end of the hydraulic rod 13 for expanding and cutting the connecting edge of the rubber sealing ring;

[0044] a demolding structure slidably arranged on the fixed disk 4 for sliding the rubber sealing ring out of the mold for demolding;

[0045] The expanding and cutting structure includes:

[0046] The connecting disc 5 fixedly connected to the end of the hydraulic rod 13, the molds 9 slidably arranged on the connecting disc 5 and equally angularly distributed, and the driving gear disc 14 rotatably arranged at one end of the connecting disc 5 for rotationally driving the molds 9 to slide. The connecting disc 5 is provided with equally angularly distributed movable chutes. The back surface of the mold 9 is fixedly connected with a first slider 10. The first slider 10 is slidably arranged in the movable chute. The driving gear disc 14 is provided with equally angularly distributed driving grooves 1401. The outer wall of one end of the first slider 10 is fixedly connected with a second sliding rod 1001, and one end of the second sliding rod 1001 is arranged in the driving groove 1401;

[0047] The demolding structure includes:

[0048] The connecting blocks 8 equally angularly distributed between the fixed disc 4 and the connecting disc 5 and the ejector rods 11 equally angularly distributed at one end of the connecting blocks 8. The other end of the connecting block 8 is fixedly connected with a first sliding rod 801. One end of the first sliding rod 801 is arranged in the first chute 402.

[0049] As an example of this embodiment, when the molds 9 are in contact, the injection molding machine injects rubber solution into the top of the molds 9 through a hose. The rubber solution first enters the injection groove of one of the molds 9, and then enters the fluid grooves 901 on both sides of the injection groove and gradually squeezes out the air in the fluid grooves 901 and discharges the gas in the molds 9 through the exhaust pipe 6. Thus, discharging the air in the molds 9 can reduce the resistance during the injection process and enable the rubber solution to fill the molds 9 faster. After the rubber solution in the molds 9 is cooled and injection molded, the motor 7 is started. The driving gear 15 at its output end drives the driving gear disc 14 to rotate by a certain angle, so that the driving groove 1401 drives the second sliding rod 1001 to push the first slider 10 to slide in the movable chute (it should be noted that the motor 7 is a servo motor, and the rotation angle data input is controlled within a certain range). The mold 9 connected to the first slider 10 expands outward from the axis of the connecting disc 5 in the movable chute. While expanding, the connection part between the molds 9 starts to pull the rubber connecting edge placed in the fluid groove 901. Subsequently, the pulled rubber connecting edge contacts the sharp end of the cutter 12 and is cut by the cutter 12. After the rubber sealing ring is cut off, the two hydraulic rods 13 start to contract, and the connecting disc 5 drives the molds 9 to slide towards the fixed disc 4 (the fixed disc 4 is sleeved on the outer wall of the hydraulic rod 13 through the housing 401, which will not affect the telescopic movement of the hydraulic rod 13, and the fixed disc 4 is fixed. And because the first sliding rod 801 is slidably arranged in the first chute 402, and the angle of the first chute 402 is the same as the expansion direction of the mold 9, the ejector rod 11 can slide synchronously with the mold 9). While sliding, the arc-shaped end of the ejector rod 11 ejects the rubber sealing ring placed in the injection groove. The ejected rubber sealing ring falls into the collection box 3 directly below, thus realizing the automatic demolding and collection of the rubber sealing ring.

[0050] As an implementation method, such asFigure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown in the figure, a fluid groove 901 for the rubber solution to flow through is provided in each mold 9. A hose is fixedly connected to the topmost mold 9 on one of the connecting disks 5, and the hose is connected to the output end of the injection molding machine. An exhaust pipe 6 is fixedly connected to the bottommost mold 9 on the other connecting disk 5. The hose injects the rubber solution into the fluid groove 901 and discharges the air in the fluid groove 901 through the exhaust pipe 6.

[0051] As an embodiment, when the molds 9 are fitted together, the injection molding machine injects the rubber solution into the injection groove at the top of one of the molds 9 through the hose. The rubber solution preferentially enters the injection groove and then flows into the fluid grooves 901 on both sides of the injection groove. During the flowing process, the rubber solution gradually extrudes the air in the fluid groove 901 and discharges the gas in the mold 9 through the exhaust pipe 6. Discharging the air in the mold 9 can reduce the resistance during the injection molding process, enable the rubber solution to fill the mold 9 faster, and improve the injection molding efficiency and quality.

[0052] As an implementation manner, as shown in Figure 4 , Figure 6 , a cutter 12 distributed in an array is fixedly connected to one end of the connecting disk 5, and the sharp ends of the cutters 12 are all directed at the connection between the molds 9.

[0053] As an embodiment, during the process of the mold 9 expanding outwards, the connection between the molds 9 starts to pull the rubber connecting edge placed in the fluid groove 901. Since the sharp ends of the cutters 12 fixedly connected to one end of the connecting disk 5 are directed at the connection between the molds 9, the pulled rubber connecting edge will contact the sharp ends of the cutters 12, and the cutters 12 perform the cutting work on the rubber connecting edge to separate the rubber connecting edge from the rubber sealing ring.

[0054] As an implementation manner, as shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , an extension plate 403 is fixedly connected to the outer wall of the fixed disk 4, a motor 7 is arranged on the extension plate, the output end of the motor 7 penetrates through the fixed disk 4, and a driving gear 15 is fixedly connected to the end thereof.

[0055] The teeth of the driving gear 15 are engaged with the teeth of the driving gear disk 14 to drive the driving gear disk 14 to rotate.

[0056] As this embodiment, when it is necessary to drive the mold 9 to open and close to cut off the rubber connecting edge, the motor 7 is started, and the output end of the motor 7 begins to rotate, driving the driving gear 15 fixed at its end to rotate synchronously. The driving gear plate 14 rotates under the drive of the driving gear 15, and the driving groove 1401 thereon drives the second slide bar 1001 to move. The second slide bar 1001 pushes the first slider 10 to slide in the movable slide groove, and the first slider 10 drives the mold 9 to expand outward with the axis of the connecting plate 5.

[0057] As an implementation method, Figure 9 As shown, one end of the ejector pin 11 slides through the mold 9 , and the end thereof is in an arc shape that fits the injection molding groove in the mold 9 .

[0058] As this embodiment, when the mold 9 moves to the appropriate position, since one end of the push rod 11 slides through the mold 9, and its end is in the shape of an arc that fits the injection groove in the mold 9, when the mold 9 is driven to shrink by the connecting plate 5, the push rod 11 begins to slide relative to the mold 9, and the arc-shaped end of the push rod 11 gradually extends into the injection groove, contacts the rubber sealing ring, and applies an ejection force. As the push rod 11 continues to slide, the rubber sealing ring is ejected from the injection groove by the push rod 11.

[0059] As an implementation method, Figure 1 、 Figure 2 、 Figure 3 As shown, the collecting box 3 is located directly below the two connecting plates 5 for collecting the injection-molded rubber sealing ring after the mold 9 is opened and closed.

[0060] As this embodiment, the mold 9 is divided into two half-molds that can move relative to each other, which are respectively connected to the two connecting plates 5. Under the action of gravity, the ejected rubber sealing ring falls directly into the collection box 3 located directly below the two connecting plates 5. As production continues, the rubber sealing ring is continuously ejected and falls into the collection box 3, realizing automatic collection.

[0061] A molding process of a rubber sealing ring molding device comprises the following steps:

[0062] S1, injection molding stage: When the mold 9 is fitted, the injection molding machine injects rubber solution into the top of the mold 9 through a hose. The rubber solution preferentially enters the injection slot of one of the molds 9, then enters the fluid slots 901 on both sides of the injection slot, gradually squeezes out the air in the fluid slots 901, and exhausts the gas in the mold 9 through the exhaust pipe 6. Expelling the air in the mold 9 can reduce the resistance during the injection molding process, allowing the rubber solution to fill the mold 9 faster and improve the injection molding efficiency.

[0063] S2. Expanding and cutting stage: When the injection molding work in step S1 is completed, the motor 7 is started. The driving gear 15 at its output end drives the driving gear disc 14 to rotate by a certain angle, so that the driving groove 1401 drives the second sliding rod 1001 to push the first slider 10 to slide in the movable chute. The mold 9 connected to the first slider 10 expands outward with the axis of the connecting disc 5 as the center. While expanding, the connection part thereof pulls the rubber connecting edge placed in the fluid groove 901, and then contacts the cutter 12 to perform the cutting work, thus realizing the automatic cutting of the rubber connecting edge after the rubber sealing ring is injection molded;

[0064] S3. Demolding stage: After the rubber sealing ring is cut, the hydraulic rods 13 on both sides contract, and the connecting disc 5 drives the mold 9 to slide towards the fixed disc 4. While sliding, the ejector rod 11 with its arc-shaped end ejects the rubber sealing ring placed in the injection molding groove. The ejected rubber sealing ring falls into the collection box 3 directly below, thus realizing the automatic demolding and collection of the rubber sealing ring.

[0065] Those of ordinary skill in the art should understand that the discussion of any embodiment above is only exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above, which are not provided in detail for the sake of brevity.

[0066] The present invention aims to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A forming device for a rubber sealing ring, comprising a workbench (1), driving ends (2) symmetrically distributed on the workbench (1), a collection box (3) arranged in the workbench (1), and an injection molding machine located at the top of the workbench (1), characterized in that, The workbench (1) further includes: a hydraulic rod (13) disposed on the opposite surfaces of the two driving ends (2); a sleeve (401) sleeved on the outer wall of the hydraulic rod (13), and one end of the sleeve (401) is bolted to the outer wall of the driving end (2); a fixed disk (4), whose outer wall is bolted to the other end of the sleeve (401), and the end is provided with first sliding grooves (402) distributed at equal angles; a spreading and cutting structure disposed at the end of the hydraulic rod (13) for spreading and cutting the connecting edge of the rubber sealing ring; a demolding structure slidably disposed on the fixed disk (4) for slidably ejecting the rubber sealing ring for demolding; The spreading and cutting structure includes: a connecting disk (5) fixedly connected to the end of the hydraulic rod (13), molds (9) slidably disposed on the connecting disk (5) and distributed at equal angles, and a driving gear disk (14) rotatably disposed at one end of the connecting disk (5) for rotating and driving the molds (9) to slide. The connecting disk (5) is provided with activity sliding grooves distributed at equal angles. A first slider (10) is fixedly connected to the back of the mold (9). The first slider (10) is slidably disposed in the activity sliding groove. The driving gear disk (14) is provided with driving grooves (1401) distributed at equal angles. A second sliding rod (1001) is fixedly connected to the outer wall of one end of the first slider (10), and one end of the second sliding rod (1001) is disposed in the driving groove (1401); The demolding structure includes: connecting blocks (8) distributed at equal angles between the fixed disk (4) and the connecting disk (5), and ejector rods (11) distributed at equal angles at one end of the connecting blocks (8). A first sliding rod (801) is fixedly connected to the other end of the connecting block (8). One end of the first sliding rod (801) is disposed in the first sliding groove (402).

2. The molding device for a rubber sealing ring according to claim 1, wherein, Fluid grooves (901) for the rubber solution to flow through are respectively formed in the molds (9). A hose is fixedly connected to the uppermost mold (9) on one of the connecting disks (5), and the hose is communicated with the output end of the injection molding machine. An exhaust pipe (6) is fixedly connected to the lowermost mold (9) on the other connecting disk (5). The hose injects the rubber solution into the fluid grooves (901) and discharges the air in the fluid grooves (901) through the exhaust pipe (6).

3. The forming device of a rubber sealing ring according to claim 2, wherein, A cutter (12) distributed in an array is fixedly connected to one end of the connecting disk (5), and the sharp ends of the cutters (12) are respectively directed at the joints between the molds (9).

4. The forming device for a rubber sealing ring according to claim 1, characterized in that, An extension plate (403) is fixedly connected to the outer wall of the fixed disk (4), and a motor (7) is disposed on the extension plate (403). The output end of the motor (7) penetrates through the fixed disk (4), and a driving gear (15) is fixedly connected to the end thereof.

5. The molding device for a rubber sealing ring according to claim 4, characterized in that, The teeth of the driving gear (15) are engaged with the teeth of the driving gear disk (14) to drive the driving gear disk (14) to rotate.

6. The molding device for a rubber sealing ring according to claim 1, characterized in that, One end of the ejector rod (11) slidably penetrates through the mold (9), and the end is in an arc shape that fits the injection molding groove in the mold (9).

7. The forming device of a rubber sealing ring according to claim 1, characterized in that, The collection box (3) is located directly below the two connecting discs (5) for collecting the injection-molded rubber sealing rings after the mold (9) is opened and closed.

8. A forming process for a forming device of a rubber sealing ring, applicable to the forming device of a rubber sealing ring described in claims 5 to 7, characterized in that, The molding process includes the following steps: S1. Injection stage: When the mold (9) is closed, the injection molding machine injects rubber solution into the top of the mold (9) through a hose. The rubber solution first enters the injection groove of one of the molds (9), and then enters the fluid grooves (901) on both sides of the injection groove and gradually squeezes out the air in the fluid grooves (901) and discharges the gas in the mold (9) through the exhaust pipe (6). Thus, the air discharged from the mold (9) can reduce the resistance during the injection process, enabling the rubber solution to fill the mold (9) faster and improving the injection efficiency. S2. Expansion and cutting stage: When the injection work in step S1 is completed, the motor (7) is started. The driving gear (15) at the output end thereof drives the driving gear disc (14) to rotate by a certain angle, so that the driving groove (1401) drives the second sliding rod (1001) to push the first slider (10) to slide in the movable chute. The mold (9) connected to the first slider (10) expands outward around the axis of the connecting disc (5). While expanding, the connection part thereof pulls the rubber connecting edge placed in the fluid groove (901), and then contacts the cutting knife (12) for cutting work, thus realizing the automatic cutting of the rubber connecting edge after the rubber sealing ring is injection-molded. S3. Demolding stage: After the rubber sealing ring is cut, the hydraulic rods (13) on both sides contract, and the connecting disc (5) drives the mold (9) to slide towards the fixed disc (4). While sliding, the ejector rod (11) ejects the rubber sealing ring placed in the injection groove with its arc-shaped end, and the ejected rubber sealing ring falls into the collection box (3) directly below, thus realizing the automatic demolding and collection of the rubber sealing ring.

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