Sealing ring forming die

Abstract

The utility model discloses a sealing ring forming die which comprises a base, a first air cylinder, a movable die plate, a fixed die plate, a movable plate and a second air cylinder, the first air cylinder and the fixed die plate are both installed on the base, the first air cylinder is connected with the movable die plate, a plurality of mold cores are arranged on the movable die plate, and die sleeves are sleeved on the mold cores in a matched mode. The mold sleeve is connected with the movable plate through a rod body movably penetrating through the movable mold plate, the second air cylinder is connected between the movable mold plate and the movable plate, a piston rod of the first air cylinder, a piston rod of the second air cylinder and the rod body are axially arranged in parallel, and a plurality of groove bodies are formed in the top wall of the fixed mold plate; the multiple mold cores enter the multiple groove bodies in a one-to-one correspondence mode, and the second air cylinder can drive the multiple mold sleeves to be located at the first positions in the groove bodies in a one-to-one correspondence mode so that mold cavities matched with the to-be-formed sealing rings can be reserved in the groove bodies. According to the utility model, the stability and accuracy of cooperative movement of all parts of the mold can be ensured, normal operation of the mold is facilitated, and the demolding process is ensured to be smooth.

Description

TECHNICAL FIELD

[0001] The utility model relates to a sealing ring technical field especially relates to a sealing ring forming die. BACKGROUND

[0002] In industrial production, the sealing ring as an important sealing element is widely used in various mechanical equipment, pipeline connection and other occasions to prevent the leakage of liquid or gas. With the continuous development of industry, higher and higher requirements are put forward for the quality, precision and production efficiency of the sealing ring.

[0003] The traditional sealing ring forming die often has many defects. For example, the die structure design is unreasonable, the movement coordination between the parts is poor, which leads to the problems such as jamming, misplacement and so on in the clamping, forming and demolding process, seriously affecting the forming precision and production efficiency of the sealing ring. In addition, in the demolding aspect, the demolding performance of the traditional die is poor, and a large external force is often needed during demolding, which not only easily damages the surface quality of the sealing ring product, increases the rate of defective products, but also prolongs the demolding process, reduces the overall production efficiency. SUMMARY

[0004] In order to solve the technical problems existing in the background art, the utility model provides a sealing ring forming die.

[0005] The utility model discloses a sealing ring forming die, including: base, first air cylinder, movable die plate, fixed die plate, movable plate, second air cylinder, first air cylinder and fixed die plate all install on the base, first air cylinder connects movable die plate, movable die plate has a plurality of core on, the core is adapted to the sleeve of the set, the sleeve is connected through the rod body of the movable die plate between movable plate, second air cylinder is connected between movable die plate and movable plate, first air cylinder piston rod, second air cylinder piston rod and the axial parallel arrangement of rod body, the fixed die plate top wall has a plurality of groove, when first air cylinder drives the die to clamp, a plurality of core will enter a plurality of grooves in one-to-one, second air cylinder can drive a plurality of sleeve one-to-one in the first position in groove to leave the cavity of the adapt forming sealing ring to be formed in the groove, second air cylinder can also drive a plurality of sleeve to go down to make the sleeve bottom end and core bottom end level, the die has when movable die plate and fixed die plate clamp a plurality of flow passages of one-to-one communication a plurality of cavities.

[0006] Preferably, the side wall and the bottom wall of the groove are provided with a demolding layer, and the demolding layer is made of tetrafluoroethylene.

[0007] Preferably, the core has an annular protrusion, and the rod body movably penetrates the annular protrusion, and when the sleeve is located at the first position in the groove, the upper end surface of the sleeve abuts against the lower end surface of the annular protrusion.

[0008] Preferably, the plurality of flow channels are arranged inside the fixed mold plate and respectively one-to-one correspond to the plurality of groove bodies.

[0009] Preferably, the number of the second cylinders is two, and the two second cylinders are respectively embedded on the two side edges of the movable mold plate.

[0010] The sealing ring forming die has the advantages that: the first cylinder piston rod, the second cylinder piston rod and the rod body are arranged in axial parallel, the stability and precision of the cooperative movement of the die components are ensured, and the die normal operation is facilitated. The number of the second cylinders is two and the two second cylinders are respectively embedded on the two side edges of the movable mold plate, after the sealing ring is formed, the sealing ring can be pushed away from the core more evenly by the die sleeve, the inclination or jamming phenomenon caused by unilateral force is avoided, the demolding process is ensured to be smooth, the plurality of flow channels are arranged inside the fixed mold plate and respectively one-to-one correspond to the plurality of groove bodies, the die appearance is simple and beautiful, the interference of external factors on the flow of raw materials is reduced, the stability and uniformity of the flow of raw materials in the flow channel are ensured, and the sealing ring products with consistent quality can be produced. BRIEF DESCRIPTION OF DRAWINGS

[0011] Fig. 1 It is an overall structural diagram of the sealing ring forming die;

[0012] Fig. 2 It is a structure diagram of a single cavity of the sealing ring forming die;

[0013] Fig. 3 It is a structure diagram of the sealing ring forming die during demolding. DETAILED DESCRIPTION

[0014] REFERENCE Figs. 1-3 The utility model proposes a kind of sealing ring forming die, including base 1, first cylinder 2, movable mold plate 3, fixed mold plate 4, movable plate 5 and second cylinder 6.Wherein, first cylinder 2 and fixed mold plate 4 are all installed on base 1. First cylinder 2 is closely connected with movable mold plate 3, when first cylinder 2 is started, it can drive movable mold plate 3 to carry out corresponding moving action. Movable mold plate 3 is carefully equipped with multiple cores 7, these cores 7 are the key part of the shape of sealing ring inside shaping. And die sleeve 8 can be exactly assembled on core 7, die sleeve 8 is connected between movable plate 5 by rod body 9 that moves through movable mold plate 3. Second cylinder 6 is connected between movable mold plate 3 and movable plate 5, it is worth noting that first cylinder 2 piston rod, second cylinder 6 piston rod and rod body 9 three are arranged in axial parallel, this layout mode provides stable and accurate guarantee for the cooperative movement of die components.

[0015] A plurality of grooves 10 are designed on the top wall of the fixed mold plate 4, and when the first air cylinder 2 drives the mold to perform the mold closing action, the plurality of cores 7 will enter the plurality of grooves 10 one by one. At this time, the second air cylinder 6 drives the plurality of mold sleeves 8 to be located at the first position in the groove 10 one by one, and the cavity 11 suitable for forming the sealing ring to be formed is ingeniously left in the groove 10. The second air cylinder 6 can also drive the plurality of mold sleeves 8 to descend to a position where the bottom end of the mold sleeve 8 is flush with the bottom end of the core 7. So that the sealing ring formed later can be quickly pushed away from the core 7, and a plurality of flow channels 12 are also designed on the mold, which can be communicated with the plurality of cavities 11 one by one when the movable mold plate 3 and the fixed mold plate 4 are closed, so as to ensure that the raw material can flow smoothly into the cavity 11 during the forming process.

[0016] Further optimize the design of the mold, the side wall and the bottom wall of the groove 10 are provided with a demolding layer, and the demolding layer is made of excellent tetrafluoroethylene material. Tetrafluoroethylene has extremely low friction coefficient and excellent chemical stability, which makes the sealing ring easy to separate from the mold after forming, greatly improves the production efficiency, and at the same time reduces the damage to the surface of the sealing ring, ensures the product quality.

[0017] An annular protrusion 13 is designed on the core 7, and the rod body 9 movably penetrates the annular protrusion 13. When the mold sleeve 8 is located at the first position in the groove 10, the upper end surface of the mold sleeve 8 can abut against the lower end surface of the annular protrusion 13.

[0018] A plurality of flow channels 12 are arranged inside the fixed mold plate 4 and are respectively communicated with the plurality of grooves 10 one by one. This design of internal flow channel makes the appearance of the mold more simple and beautiful, and at the same time reduces the interference of external factors on the flow of raw materials, ensures the stability and uniformity of the flow of raw materials in the flow channel, and is beneficial to produce sealing ring products with consistent quality.

[0019] In addition, the number of the second air cylinder 6 is two, and the two second air cylinders 6 are respectively embedded on the two side edges of the movable mold plate 3. After the sealing ring is formed, the second air cylinder 6 can quickly push the sealing ring away from the core 7 through the mold sleeve 8, and this double-sided layout can make the force distribution more uniform, and can avoid the inclination or jamming phenomenon caused by unilateral force when driving the mold sleeve 8 to move up and down.

[0020] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art can make equivalent replacement or change according to the technical scheme of the present application and the concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A sealing ring forming mold, characterized in that: include: A base (1), a first cylinder (2), a movable plate (3), a fixed plate (4), a movable plate (5), and a second cylinder (6) are provided. The first cylinder (2) and the fixed plate (4) are both installed on the base (1). The first cylinder (2) is connected to the movable plate (3). The movable plate (3) has a plurality of cores (7). A die sleeve (8) is adapted to be mounted on the core (7). The die sleeve (8) and the movable plate (5) are connected via a rod (9) that movably penetrates the movable plate (3). The second cylinder (6) is connected between the movable plate (3) and the movable plate (5). The piston rod of the first cylinder (2), the piston rod of the second cylinder (6), and the rod (9) are arranged axially parallel to each other. The fixed plate (4) has a plurality of grooves (10) on its top wall. When the first cylinder (2) drives the mold to close, the plurality of cores (7) will enter the plurality of grooves (10) in a one-to-one correspondence. The second cylinder (6) can drive the plurality of mold sleeves (8) to be located in a one-to-one correspondence at a first position in the groove (10) so as to leave a cavity (11) in the groove (10) suitable for forming a sealing ring to be formed. The second cylinder (6) can also drive the plurality of mold sleeves (8) to descend until the bottom end of the mold sleeve (8) is flush with the bottom end of the core (7). The mold has a plurality of flow channels (12) that are connected to the plurality of cavities (11) in a one-to-one correspondence when the movable plate (3) and the fixed plate (4) are closed.

2. A sealing ring forming mold according to claim 1, characterized in that: A demoulding layer is provided on the side wall and the bottom wall of the trough body (10), and the demoulding layer is made of tetrafluoroethylene.

3. The sealing ring forming mold according to claim 1, characterized in that: The core (7) is provided with an annular protrusion (13), and the rod body (9) movably penetrates the annular protrusion (13). When the mold sleeve (8) is located at the first position in the groove body (10), the upper end surface of the mold sleeve (8) abuts against the lower end surface of the annular protrusion (13).

4. The sealing ring forming mold according to claim 1, characterized in that: The plurality of flow channels (12) are all arranged inside the fixed die plate (4) and are connected to the plurality of trough bodies (10) in a one-to-one correspondence.

5. The sealing ring forming mold according to claim 1, characterized in that: There are two second cylinders (6), and the two second cylinders (6) are respectively embedded on both sides of the movable template (3).

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