Automatic stripping device and method for producing rubber sealing ring

Abstract

The present invention relates to the technical field of vulcanizing machine stripping, and discloses an automatic stripping device for producing rubber sealing rings. The intermediate mold is sent into a lifting mechanism for a lifting and separation process. The demoulding mechanism first limits the rubber sealing ring, and the residual material ejection rod ejects the residual material inside the rubber sealing ring in the mold. Then, the rubber sealing ring is no longer limited, and the ejection operation of the demoulding mechanism continues, so that the rubber part ejection rod ejects the rubber sealing ring and separates it from the external residual material. The present invention quickly demoulds the rubber sealing ring in the intermediate mold through the cooperation of the demoulding mechanism and the lifting mechanism, and realizes the separation of the rubber sealing ring from the internal and external residual materials in the same process, thereby ensuring the demoulding quality of the rubber sealing ring and improving the demoulding efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of stripping of rubber vulcanizing machines, in particular to an automatic stripping device and method for producing rubber sealing rings. Background Art

[0002] In the processing of rubber sealing rings, vacuum vulcanization molding machines are often used for vulcanization to avoid a series of defects such as bubbles. Among them, vacuum vulcanization molding machines usually have an upper mold, a middle mold, a bottom film and an ejection structure, which makes it convenient to demold the rubber sealing ring after processing.

[0003] In Chinese invention publication number CN114147881B, an automatic production line for sealing rings is proposed. By setting a feeding device, a vulcanizing device and a discharging device, automatic feeding and vulcanization, and separation of residual material inside the sealing ring by jetting and separation of residual material outside by suction are realized, thereby reducing the workload of workers and improving production efficiency.

[0004] The above invention is combined with the existing ones, and there are the following problems: a jet structure is directly set on the core pulling inside the vulcanization device to quickly demold the internal residual material, so that the rubber ring is in close contact with the gas, and the rubber ring has a certain amount of residual heat after the vulcanization molding is completed, and the shaping is not completed, so that the rubber ring is easily damaged during demolding, thereby affecting the quality of the rubber ring. At the same time, the internal and external residual material separation process is relatively scattered, affecting the demolding efficiency. In addition, the combination of feeding, vulcanization and unloading equipment is relatively scattered, thereby occupying a large production space and affecting the space utilization rate. Therefore, an automatic stripping device and method for producing rubber sealing rings are proposed to solve the above problems. Summary of the invention

[0005] 1. Technical issues to be resolved In view of the deficiencies in the prior art, the present invention provides an automatic stripping device and method for producing rubber sealing rings, which solves the problems of poor demoulding efficiency and quality during vulcanization molding of rubber rings.

[0006] (II) Technical solution To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic stripping device for producing rubber sealing rings, comprising a stripping mechanism, the stripping mechanism being provided with a lifting mechanism, the stripping mechanism being used for stripping the rubber sealing rings and the inner and outer residual materials; The demoulding mechanism includes an ejection cylinder, a residual material ejection rod, a contact pressure plate and a rubber part ejection rod. The ejection cylinder is used to drive the residual material ejection rod and the rubber part ejection rod to press down to remove the rubber sealing ring and the internal and external residual materials. The contact pressure plate is used to fix the residual material outside the rubber sealing ring. The residual material ejection rod is used to remove the residual material inside the rubber sealing ring. The rubber part ejection rod is used to remove the residual material outside the rubber sealing ring.

[0007] Preferably, the demoulding mechanism also includes four pillars and a retraction cylinder, the pillars are integrally provided with a supporting top plate for fixing the ejection cylinder and a driving plate for fixing the residual material ejection rod, the retraction cylinder is plugged into the driving plate, and the overall output end is connected to the contact pressure plate, the output end of the ejection cylinder is connected to the driving plate, the driving plate is provided with four springs sleeved on the retraction cylinder, the overall end of the spring is provided with a limiting plate sleeved on the retraction cylinder, the limiting plate is used to fix the rubber ejection rod, the rubber ejection rod is provided with a vacuum adsorption hole for fixing the rubber sealing ring, the rubber ejection rod is sleeved on the outside of the residual material ejection rod, and the bottom is in the same horizontal plane as the bottom of the contact pressure plate, the contact pressure plate is provided at the output end of the retraction cylinder, and is provided with a through hole adapted to the rubber ejection rod.

[0008] Preferably, the demoulding mechanism also includes four pillars, a partition baffle, two adjusting cylinders and four U-shaped guide plates. The pillars are integrally provided with a supporting top plate for fixing the ejection cylinder and a driving plate for fixing the residual material ejection rod. The driving plate is also plugged with four T-shaped stabilizing rods. The T-shaped stabilizing rod is integrally sleeved with a limiting plate for fixing the rubber ejection rod. The limiting plate is provided with four springs sleeved on the T-shaped stabilizing rod. The output end of the ejection cylinder is connected to the driving plate. The contact pressure plate is arranged on the T-shaped stabilizing rod as a whole. A side away from the driving plate is provided with a through hole matched with the rubber ejector rod, the rubber ejector rod is sleeved on the outside of the residual material ejector rod, and the bottom is in the same horizontal plane as the bottom of the contact pressure plate, the contact pressure plate is connected to the spring, the partition baffle is provided with four connecting shafts, the two connecting shafts are rotatably mounted on the lifting mechanism, and a driven gear is provided, the U-shaped guide plate and the adjusting cylinder are both arranged on the lifting mechanism, the two U-shaped guide plates are a group, and a support plate is provided, the support plate is provided with an adjusting rack meshing with the driven gear, and the output end of the adjusting cylinder is connected to the support plate.

[0009] Preferably, the excess material ejection rod is provided with a coarse grinding sheet for grinding the inner wall of the rubber sealing ring and a fine grinding sheet for grinding the inner wall of the rubber sealing ring.

[0010] Preferably, the supporting top plate is provided with a blowing pipe for cleaning external residual materials.

[0011] Preferably, it also includes a vulcanization molding machine and a lower mold, an intermediate mold, an upper mold and an extension cylinder arranged inside it. The intermediate mold, the lower mold and the upper mold are used for molding the rubber sealing ring. The extension cylinder is used to drive the lower mold to make the intermediate mold enter the lifting mechanism. The intermediate mold is provided with four fixed blocks.

[0012] Preferably, the lifting mechanism includes a base, the base is provided with a baffle plate for shielding internal and external residual materials, four lifting cylinders and four positioning rod sleeves, and the overall output ends of every two lifting cylinders are provided with a bearing plate, and the bearing plate is provided with two movable rods, which are arranged on the positioning rod sleeves, and the bearing plate is provided with a groove adapted to the fixed block.

[0013] Preferably, the lifting mechanism is also provided with a material dividing mechanism for transporting the rubber sealing ring and the residual materials, which includes a guide groove for transporting the rubber sealing ring and the internal and external residual materials, and the guide groove is provided with two positioning triangular guide blocks and an adjusting triangular guide block for separating and guiding the rubber sealing ring and the internal and external residual materials.

[0014] Preferably, the guide groove is arranged inside the base, the partition baffle is rotatably connected to the two bearing plates respectively through two connecting shafts, and the other two connecting shafts are in contact with the supporting plate.

[0015] Preferably, an automatic stripping method for producing a rubber sealing ring comprises the following steps: 1) Send the intermediate mold into the lifting mechanism for lifting and separation process; 2) Start the demoulding mechanism to first limit the rubber sealing ring, and the residual material ejection rod ejects the residual material inside the rubber sealing ring in the mold; 3) Then, the rubber sealing ring is no longer limited, and the demoulding mechanism continues to eject the rubber sealing ring, so that the rubber ejection rod ejects the rubber sealing ring and separates it from the external excess material.

[0016] (III) Beneficial effects Compared with the prior art, the present invention provides an automatic stripping device and method for producing rubber sealing rings, which has the following beneficial effects: 1. The automatic stripping device and method for producing rubber sealing rings, through the setting of the vulcanizing molding machine, the lifting mechanism and the demoulding mechanism, moves the intermediate mold to the lifting mechanism for separation, thereby cooling the rubber sealing ring during the separation, and then the demoulding mechanism separates the residual materials inside and outside the rubber sealing ring in the same process, thereby ensuring the demoulding quality of the rubber sealing ring and improving the demoulding efficiency; 2. The automatic stripping device and method for producing rubber sealing rings, through the arrangement of the vulcanization molding machine, the lifting mechanism and the demoulding mechanism, makes the vulcanization demoulding process more compact, makes the overall use of the device more convenient, and improves the demoulding efficiency; 3. The automatic material stripping device and method for producing rubber sealing rings, through the setting of the material separation mechanism, can classify, transport and collect the rubber sealing rings and the residual materials inside, reduce the intensity of manual work, and thus improve the processing efficiency of the rubber sealing rings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of a partial cross-sectional structure of a demoulding mechanism according to Embodiment 1 of the present invention; Figure 3 This is an exploded view of the demoulding mechanism structure of Example 1 of the present invention; Figure 4 This is a schematic diagram of the connection structure between the intermediate mold and the lifting mechanism of the present invention; Figure 5 This is a schematic diagram of a partial cross-sectional structure of a demoulding mechanism according to Embodiment 2 of the present invention; Figure 6 This is an exploded view of the demoulding mechanism structure of Example 2 of the present invention; Figure 7 This is a schematic diagram of the connection structure between the local demoulding mechanism and the lifting mechanism in Example 2 of the present invention; Figure 8 It is a structural schematic diagram of the vulcanization molding machine of the present invention; Fig. 9 It is a schematic diagram of the structure of the material distributing mechanism of the present invention; Fig.10 It is a schematic diagram of the connection structure between the rubber sealing ring and the inner and outer surplus materials of the present invention.

[0018] In the figure, 1, vulcanizing machine; 11, lower mold; 12, upper mold; 13, extension cylinder; 14, middle mold; 15, fixed block; 2, material distribution mechanism; 21, guide groove; 22, positioning triangular guide block; 23, adjusting triangular guide block; 3, lifting mechanism; 31, base; 32, shielding plate; 33, bearing plate; 34, lifting cylinder; 35, movable rod; 36, positioning rod sleeve; 4, demoulding mechanism; 41, pillar; 42, supporting top plate; 43, driving plate; 44, ejector Cylinder; 45, retraction cylinder; 46, spring; 47, limit plate; 48, rubber ejector rod; 49, vacuum adsorption hole; 410, contact pressure plate; 411, perforation; 412, residual material ejector rod; 413, coarse grinding sheet; 414, fine grinding sheet; 415, blow pipe; 416, connecting shaft; 417, driven gear; 418, partition baffle; 419, U-shaped guide plate; 420, support plate; 421, adjustment cylinder; 422, adjustment rack; 423, T-shaped stabilizer bar. DETAILED DESCRIPTION

[0019] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Example 1 An automatic stripping device for producing rubber sealing rings comprises a stripping mechanism 4 and an intermediate mold 14 arranged therein. The stripping mechanism 4 is provided with a lifting mechanism 3. The stripping mechanism 4 is used for stripping the rubber sealing ring and the inner and outer residual materials. The lifting mechanism 3 is used for supporting the intermediate mold 14. The intermediate mold 14 is used for molding the rubber sealing ring.

[0021] In this embodiment, the demoulding mechanism 4 includes an ejection cylinder 44, a residual material ejection rod 412, a contact pressure plate 410, a rubber part ejection rod 48, four pillars 41 and a retraction cylinder 45. The ejection cylinder 44 is used to drive the residual material ejection rod 412 and the rubber part ejection rod 48 to press down to remove the rubber sealing ring and the residual material inside and outside. The contact pressure plate 410 is used to fix the residual material outside the rubber sealing ring. The residual material ejection rod 412 is used to remove the residual material inside the rubber sealing ring. The rubber part ejection rod 48 is used to remove the residual material outside the rubber sealing ring. The pillar 41 is integrally provided with a supporting top plate 42 for fixing the ejection cylinder 44 and a driving plate 43 for fixing the residual material ejection rod 412. The retraction cylinder 45 is plugged into the driving plate 43, and the overall output end is connected to the contact pressure plate 410. The pressure plate 410 is connected, the supporting top plate 42 is provided with a blowing pipe 415 for cleaning the external residual material, the output end of the ejection cylinder 44 is connected to the driving plate 43, the driving plate 43 is provided with four springs 46 which are sleeved on the retraction cylinder 45, the integral end of the spring 46 is provided with a limiting plate 47 which is sleeved on the retraction cylinder 45, the limiting plate 47 is used to fix the rubber ejection rod 48, the rubber ejection rod 48 is provided with a vacuum adsorption hole 49 for fixing the rubber sealing ring, the rubber ejection rod 48 is sleeved on the outside of the residual material ejection rod 412, and the bottom is in the same horizontal plane with the bottom of the contact pressure plate 410, the contact pressure plate 410 is arranged at the output end of the retraction cylinder 45, and is provided with a through hole 411 which is adapted to the rubber ejection rod 48.

[0022] Specifically, the middle mold 14 is sent into the lifting mechanism 3 for lifting and separation. First, the ejection cylinder 44 is started to drive the driving plate 43 to move downward, so that the contact pressure plate 410 contacts the top of the middle mold 14, and the rubber ejection rod 48 contacts the rubber sealing ring, so that the external vacuum generator adsorbs and limits the rubber sealing ring through the vacuum adsorption hole 49, and the ejection cylinder 44 continues to squeeze the spring 46 downward through the driving plate 43, and the retraction cylinder 45 passes through the driving plate 43. The spring 46 is compressed to make the residual material ejection rod 412 eject the residual material of the inner ring of the rubber sealing ring. At the same time, the retraction cylinder 45 is started to retract the contact pressure plate 410 upward, and the ejection cylinder 44 continues to operate, and the rubber ejection rod 48 is exposed to the contact pressure plate 410 through the limiting plate 47 through the perforation 411, and the rubber sealing ring is ejected downward. At the same time, the contact pressure plate 410 is still in contact with the external residual material to limit the position, thereby realizing the separation and demoulding of the rubber sealing ring and the external residual material.

[0023] The limiting plate 47 is fixedly installed on the outside of the retracting cylinder 45 , and the driving plate 43 is sleeved on the outside of the retracting cylinder 45 , thereby realizing the operation of the residual material ejecting rod 412 and the rubber member ejecting rod 48 .

[0024] In this embodiment, the waste material ejection rod 412 is provided with a coarse grinding sheet 413 for grinding the inner wall of the rubber sealing ring and a fine grinding sheet 414 for grinding the inner wall of the rubber sealing ring.

[0025] It should be noted that the provision of the coarse sanding sheet 413 and the fine sanding sheet 414 enables the residual material ejecting rod 412 to quickly smooth the inner wall of the rubber sealing ring after the residual material is separated from the rubber sealing ring.

[0026] This embodiment also includes a vulcanizing molding machine 1 and a lower mold 11, an upper mold 12 and an extension cylinder 13 arranged therein. The middle mold 14, the lower mold 11 and the upper mold 12 are used for molding the rubber sealing ring. The extension cylinder 13 is used to drive the lower mold 11 to make the middle mold 14 enter the lifting mechanism 3. The middle mold 14 is provided with four fixing blocks 15.

[0027] Specifically, when the vulcanization molding machine 1 starts, the upper mold 12 moves downward to cooperate with the lower mold 11 to vulcanize the rubber sealing ring of the middle mold 14, and then, the upper mold 12 is lifted, and the extension cylinder 13 is started to drive the lower mold 11 to move the middle mold 14 to the inside of the lifting mechanism 3, so that the middle mold 14 stays inside it and is unloaded through the demolding mechanism 4.

[0028] The setting of the fixing block 15 enables the middle mold 14 to be clamped inside the lifting mechanism 3, so that the middle mold 14 can be automatically demoulded.

[0029] In this embodiment, the lifting mechanism 3 includes a base 31, which is provided with a baffle plate 32 for shielding internal and external residual materials, four lifting cylinders 34 and four positioning rod sleeves 36. The overall output end of every two lifting cylinders 34 is provided with a bearing plate 33, and the bearing plate 33 is provided with two movable rods 35. The movable rods 35 are arranged on the positioning rod sleeves 36, and the bearing plate 33 is provided with a groove adapted to the fixed block 15.

[0030] Specifically, after the middle mold 14 enters the top of the supporting plate 33, the lifting cylinder 34 is started to lift the supporting plate 33, so that the fixing block 15 is embedded in the corresponding groove, which can drive the middle mold 14 to separate from the lower mold 11 containing the core column, so that the demolding mechanism 4 will no longer hinder the demolding of the rubber sealing ring in the middle mold 14.

[0031] Among them, the setting of the baffle plate 32 allows the external residual material to be separated from the rubber sealing ring, and the external fan blows the external residual material to the left side of the inner wall of the baffle plate 32 through the blowing pipe 415 for material recovery, avoiding the tedious manual recovery.

[0032] In this embodiment, the lifting mechanism 3 is also provided with a dividing mechanism 2 for transporting rubber sealing rings and residual materials, which includes a guide groove 21 for transporting rubber sealing rings and internal and external residual materials. The guide groove 21 is provided with two positioning triangular guide blocks 22 and an adjusting triangular guide block 23 for separating and guiding the rubber sealing rings and internal and external residual materials. The guide groove 21 is arranged inside the base 31.

[0033] Specifically, when the remaining material in the rubber sealing ring is ejected and falls into the guide groove 21, it is guided by the two positioning triangular guide blocks 22 to fall quickly and impact the front right end of the adjusting triangular guide block 23, so that the adjusting triangular guide block 23 rotates to the right and contacts the right positioning triangular guide block 22, so that the subsequent ejected and falling rubber sealing ring is collected in another direction, avoiding the trouble of subsequent sorting.

[0034] In this embodiment, an automatic stripping method for producing a rubber sealing ring includes the following steps: 1) Send the intermediate mold 14 into the lifting mechanism 3 for lifting and separation process; 2) Start the demoulding mechanism 4 to first limit the rubber sealing ring, and the residual material ejection rod 412 ejects the residual material inside the rubber sealing ring in the mold; 3) Then, the rubber sealing ring is no longer limited, and the demoulding mechanism 4 continues to eject the rubber sealing ring, so that the rubber ejection rod 48 ejects the rubber sealing ring and separates it from the external residual material.

[0035] Specifically, 1) the intermediate mold 14 is sent to the lifting mechanism 3 for lifting and separation; 2) First, the ejection cylinder 44 is started to drive the driving plate 43 to move downward, so that the contact pressure plate 410 contacts the top of the middle mold 14, the rubber ejection rod 48 contacts the rubber sealing ring, and the external vacuum generator adsorbs the rubber sealing ring through the vacuum adsorption hole 49 to limit the position. The ejection cylinder 44 continues to press the spring 46 downward through the driving plate 43, and the retraction cylinder 45 passes through the driving plate 43. The spring 46 is compressed to make the residual material ejection rod 412 eject the residual material of the inner ring of the rubber sealing ring; 3) At the same time, the retraction cylinder 45 is started to retract the contact pressure plate 410 upward, and the ejection cylinder 44 continues to operate, so that the rubber ejection rod 48 is exposed from the contact pressure plate 410 through the through-hole 411 via the limiting plate 47, and the rubber sealing ring is ejected downward. At the same time, the contact pressure plate 410 is still in contact with the external residual material to limit the position, thereby realizing the separation and demoulding of the rubber sealing ring and the external residual material.

[0036] Example 2 like Figure 5-7 As shown, different from Example 1, the demoulding mechanism 4 includes an ejection cylinder 44, a residual material ejection rod 412, a contact pressure plate 410, a rubber part ejection rod 48, four pillars 41, a partition baffle 418, two adjusting cylinders 421 and four U-shaped guide plates 419, the pillar 41 is integrally provided with a supporting top plate 42 for fixing the ejection cylinder 44 and a driving plate 43 for fixing the residual material ejection rod 412, the driving plate 43 is also plugged with four T-shaped stabilizing rods 423, the T-shaped stabilizing rod 423 is integrally sleeved with a limiting plate 47 for fixing the rubber part ejection rod 48, the limiting plate 47 is provided with four springs 46 sleeved on the T-shaped stabilizing rod 423, the supporting top plate 42 is provided with a blowing pipe 415 for cleaning external residual materials, the output end of the ejection cylinder 44 is connected to the driving plate 43, and the contact pressure plate 410 is arranged on the T-shaped stabilizing rod 423 as a whole. A side away from the driving plate 43 is provided with a through hole 411 adapted to the rubber ejector rod 48. The rubber ejector rod 48 is sleeved on the outside of the residual material ejector rod 412, and the bottom is in the same horizontal plane as the bottom of the contact pressure plate 410. The contact pressure plate 410 is connected to the spring 46. The partition baffle 418 is provided with four connecting shafts 416. The two connecting shafts 416 are rotatably mounted on the lifting mechanism 3 and are provided with a driven gear 417. The U-shaped guide plate 419 and the adjusting cylinder 421 are both arranged on the lifting mechanism 3. The two U-shaped guide plates 419 are a group and are provided with a support plate 420. The support plate 420 is provided with an adjusting rack 422 meshing with the driven gear 417. The output end of the adjusting cylinder 421 is connected to the support plate 420. The partition baffle 418 is rotatably connected to the two bearing plates 33 respectively through two connecting shafts 416, and the other two connecting shafts 416 are in contact with the support plate 420.

[0037] Specifically, the middle mold 14 is sent into the lifting mechanism 3 for lifting and separation. First, the ejection cylinder 44 is started to drive the driving plate 43 to move downward, so that the contact pressure plate 410 contacts the top of the middle mold 14. At the same time, the adjustment cylinder 421 retracts, so that the adjustment rack 422 is no longer meshed with the driven gear 417, and drives the driven gear 417 to move the partition baffle 418 backward through the connecting shaft 416 and contact the middle mold 14. The support plate 420 is driven to move inside the U-shaped guide plate 419, so that the support plate 420 carries the rear connecting shaft 416. The ejection cylinder 44 continues to move downward through the driving plate 43, so that the residual material ejection rod 412 ejects the residual material of the inner ring of the rubber sealing ring in the middle mold 14 through the rubber member ejection rod 48; Then, the adjusting cylinder 421 is started to recover, so that the support plate 420 moves forward and no longer bears the rear connecting shaft 416. The adjusting rack 422 is meshed with the driven gear 417 again, and drives the connecting shaft 416 to rotate the partition baffle 418 downward, and no longer blocks the middle mold 14. The ejection cylinder 44 continues to move downward through the driving plate 43 and squeezes the rubber ejection rod 48 on the limit plate 47, thereby compressing the spring 46. The T-shaped stabilizing bar 423 extends to the rear side of the driving plate 43, so that the rubber ejection rod 48 enters the middle mold 14 through the through hole 411 on the contact pressure plate 410 to eject the rubber sealing ring. The contact pressure plate 410 fixes the external residual material to achieve rapid separation and demoulding of the external residual material and the rubber sealing ring.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic stripping device for producing rubber sealing rings, characterized in that: It comprises a demoulding mechanism (4), wherein the demoulding mechanism (4) is provided with a lifting mechanism (3); The demoulding mechanism (4) is used to remove the rubber sealing ring and the remaining materials inside and outside; The demoulding mechanism (4) comprises an ejection cylinder (44), a residual material ejection rod (412), a contact pressure plate (410) and a rubber member ejection rod (48); the ejection cylinder (44) is used to drive the residual material ejection rod (412) and the rubber member ejection rod (48) to press downward to remove the rubber sealing ring and the residual material inside and outside; the contact pressure plate (410) is used to fix the residual material outside the rubber sealing ring; the residual material ejection rod (412) is used to remove the residual material inside the rubber sealing ring; and the rubber member ejection rod (48) is used to remove the residual material outside the rubber sealing ring.

2. The automatic stripping device for producing rubber sealing rings according to claim 1, characterized in that: The demoulding mechanism (4) further comprises four pillars (41) and a retracting cylinder (45), each of which is provided with a supporting top plate (42) for fixing the ejection cylinder (44) and a driving plate (43) for fixing the residual material ejection rod (412). The retracting cylinder (45) is plugged into the driving plate (43), and the overall output end is connected to the contact pressure plate (410). The output end of the ejection cylinder (44) is connected to the driving plate (43). The driving plate (43) is provided with four springs (46) which are sleeved on the retracting cylinder (45). (46) A limit plate (47) is provided at the end of the whole body and is sleeved on the retracting cylinder (45). The limit plate (47) is used to fix the rubber ejector rod (48). The rubber ejector rod (48) is provided with a vacuum adsorption hole (49) for fixing the rubber sealing ring. The rubber ejector rod (48) is sleeved on the outside of the residual material ejector rod (412), and the bottom is in the same horizontal plane as the bottom of the contact pressure plate (410). The contact pressure plate (410) is provided at the output end of the retracting cylinder (45) and is provided with a through hole (411) adapted to the rubber ejector rod (48).

3. The automatic stripping device for producing rubber sealing rings according to claim 1, characterized in that: The demoulding mechanism (4) further comprises four pillars (41), a partition baffle (418), two regulating cylinders (421) and four U-shaped guide plates (419). The pillars (41) are integrally provided with a supporting top plate (42) for fixing the ejection cylinder (44) and a driving plate (43) for fixing the residual material ejection rod (412). The driving plate (43) is also plugged with four T-shaped stabilizing rods (423). The T-shaped stabilizing rod (423) is integrally sleeved with a limiting plate (47) for fixing the rubber part ejection rod (48). The limiting plate (47) is provided with four springs (46) sleeved on the T-shaped stabilizing rod (423). The output end of the ejection cylinder (44) is connected to the driving plate (43). The contact pressure plate (410) is disposed at a position where the T-shaped stabilizing rod (423) is integrally away from the driving plate (43). ) on one side and is provided with a through hole (411) adapted to the rubber ejector rod (48). The rubber ejector rod (48) is sleeved on the outside of the residual material ejector rod (412) and has a bottom portion in the same horizontal plane as the bottom portion of the contact pressure plate (410). The contact pressure plate (410) is connected to the spring (46). The partition baffle (418) is provided with four connecting shafts (416). The two connecting shafts (416) are rotatably mounted on the lifting mechanism (3) and are provided with a driven gear (417). The U-shaped guide plate (419) and the regulating cylinder (421) are both provided on the lifting mechanism (3). The two U-shaped guide plates (419) form a group and are provided with a support plate (420). The support plate (420) is provided with an regulating rack (422) meshing with the driven gear (417). The output end of the regulating cylinder (421) is connected to the support plate (420).

4. An automatic stripping device for producing rubber sealing rings according to claim 2 or 3, characterized in that: The residual material ejection rod (412) is provided with a coarse grinding sheet (413) for grinding the inner wall of the rubber sealing ring and a fine grinding sheet (414) for grinding the inner wall of the rubber sealing ring.

5. An automatic stripping device for producing rubber sealing rings according to claim 2 or 3, characterized in that: The supporting top plate (42) is provided with a blowing pipe (415) for cleaning external residual materials.

6. The automatic stripping device for producing rubber sealing rings according to claim 1, characterized in that: It also includes a vulcanizing molding machine (1) and a lower mold (11), an intermediate mold (14), an upper mold (12) and an extension cylinder (13) arranged therein. The intermediate mold (14), the lower mold (11) and the upper mold (12) are used for molding a rubber sealing ring. The extension cylinder (13) is used to drive the lower mold (11) so that the intermediate mold (14) enters the lifting mechanism (3). The intermediate mold (14) is provided with four fixing blocks (15).

7. The automatic stripping device for producing rubber sealing rings according to claim 3, characterized in that: The lifting mechanism (3) comprises a base (31), the base (31) being provided with a shielding plate (32) for shielding internal and external residual materials, four lifting cylinders (34) and four positioning rod sleeves (36), a bearing plate (33) being provided at the integral output end of every two lifting cylinders (34), the bearing plate (33) being provided with two movable rods (35), the movable rods (35) being arranged on the positioning rod sleeves (36), and the bearing plate (33) being provided with a groove matching the fixing block (15).

8. The automatic stripping device for producing rubber sealing rings according to claim 7, characterized in that: The lifting mechanism (3) is also provided with a material separation mechanism (2) for transporting the rubber sealing ring and the residual material, which comprises a guide groove (21) for transporting the rubber sealing ring and the internal and external residual material, the guide groove (21) being provided with two positioning triangular guide blocks (22) and an adjusting triangular guide block (23) for separating and guiding the rubber sealing ring and the internal and external residual material.

9. The automatic stripping device and method for producing rubber sealing rings according to claim 8, characterized in that: The guide groove (21) is arranged inside the base (31); the partition baffle (418) is rotatably connected to the two bearing plates (33) respectively via two connecting shafts (416); and the other two connecting shafts (416) are in contact with the supporting plate (420).

10. An automatic stripping method for producing a rubber sealing ring according to any one of claims 1 to 9, characterized in that: The following steps are involved: 1) sending the intermediate mold (14) into the lifting mechanism (3) to perform a lifting and separation process; 2) The demoulding mechanism (4) is started to first limit the rubber sealing ring, and the residual material ejection rod (412) ejects the residual material inside the rubber sealing ring in the mold; 3) Then, the rubber sealing ring is no longer limited, and the demoulding mechanism (4) continues the ejection operation, so that the rubber member ejection rod (48) ejects the rubber sealing ring and separates it from the external excess material.

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