High-wear-resistance and high-temperature-resistance plastic shaft seal forming equipment of vacuum pump

Abstract

The invention relates to the technical field of plastic shaft seal forming equipment, in particular to high-wear-resistance and high-temperature-resistance plastic shaft seal forming equipment of a vacuum pump, which comprises a base and a groove body, the groove body is arranged on the base, and cooling water is arranged in the groove body; the lower mold is installed on the inner side wall of the groove body, the supporting device is arranged at the top end of the base and used for driving the shell to move in a lifting mode, the upper mold is installed on the inner side wall of the shell, and the output end of the feeding pipe is communicated with the interior of the upper mold; the circulating device is arranged on the lower mold and the shell and used for circularly conveying cooling water, and the conveying device is installed on the inner side wall of the groove body and used for collecting the formed plastic shaft seal; the temperature uniformity of cooling water is improved, the cooling efficiency of the cooling water is improved, a lower mold can be conveniently and continuously cooled, the cooling forming efficiency of the plastic shaft seal is improved, and the use convenience is improved.

Description

Technical Field

[0001] The invention relates to the technical field of plastic shaft seal molding equipment, in particular to highly wear-resistant and temperature-resistant plastic shaft seal molding equipment for a vacuum pump. Background Art

[0002] As a widely used equipment in the industrial field, the performance and service life of the vacuum pump are often affected by many factors, among which the material and molding technology of the shaft seal are particularly critical. As a key component in the vacuum pump, the shaft seal needs to withstand high temperatures and pressures, and at the same time have excellent wear resistance to ensure the stable operation of the vacuum pump and extend its service life.

[0003] At present, when plastic shaft seals are injection molded, such as the patent with the prior art authorization announcement number CN203765979U, the utility model discloses an injection mold, and the key points of its technical solution are that it includes a fixed mold, a movable mold, a movable mold cooling pipeline, and an injection port. The fixed mold and the movable mold cooperate to form a cavity, and the injection port is arranged on the other side of the fixed mold relative to the movable mold. The injection port is provided with a pouring gate communicated with the cavity at one end of the injection port relative to the fixed mold, the movable mold cooling pipeline is arranged in the movable mold, and a movable mold cooling pipeline inlet and a movable mold cooling pipeline outlet are provided on the side wall of the movable mold. An exhaust channel is provided at the end of the cavity relative to the injection port, and the other end of the exhaust channel is communicated with the movable mold cooling pipeline.

[0004] However, during the use of the equipment, it was found that the efficiency of cooling and shaping the workpiece by using a pipeline to transport the cooling medium was low, which was not convenient for achieving continuous cooling of the mold, reducing the convenience of use. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a highly wear-resistant and temperature-resistant plastic shaft seal molding equipment for a vacuum pump, which improves the temperature uniformity of cooling water, improves the cooling efficiency of cooling water, facilitates continuous cooling of the lower mold, improves the cooling and molding efficiency of the plastic shaft seal, and improves the ease of use.

[0006] The invention discloses a highly wear-resistant and temperature-resistant plastic shaft seal molding device for a vacuum pump, comprising a base and a tank body, wherein the tank body is arranged on the base, and cooling water is arranged in the tank body; the invention also comprises a supporting device, a circulating device, a conveying device, a lower mold, an upper mold, a shell and a feeding pipe, wherein the lower mold is arranged on the inner wall of the tank body, and a supporting device is arranged on the top of the base, and the supporting device is used to drive the shell body to move up and down, and the upper mold is arranged on the inner wall of the shell body, and the output end of the feeding pipe is connected with the upper mold, and the circulating device is arranged on the lower mold and the shell body, and the circulating device is used to circulate and convey the cooling water, and the conveying device is arranged on the inner wall of the tank body, and the conveying device is used to collect the molded plastic shaft seal, and the conveying device is used to mix the cooling water in the tank body; the shell body is driven downward by the supporting device, so that the shell drives the upper mold to move downward and close to the lower mold The plastic raw material is then transported to the upper mold through the feed pipe, so that the raw material is cooled and formed in the upper and lower molds. After the plastic shaft seal is formed, the upper mold is driven to move upward by the support device, so that the plastic shaft seal stays in the lower mold. The plastic shaft seal formed on the lower mold is then collected and moved by the conveying device. The conveying device mixes the cooling water in the tank body while conveying the plastic shaft seal, thereby improving the temperature uniformity of the cooling water and the cooling efficiency of the cooling water, so that the lower part of the lower mold is immersed in the cooling water in the tank body, so that the lower mold is continuously cooled. When the upper mold and the lower mold are closed, the circulation device circulates the cooling water in the tank body in the shell, so that the cooling water cools the lower mold and the upper mold at the same time, thereby improving the cooling and molding efficiency of the plastic shaft seal and improving the convenience of use.

[0007] Preferably, the circulation device comprises two groups of delivery pipes, a first pump body, multiple groups of through holes, two groups of cylinders, two groups of annular plates, two groups of cover plates, multiple groups of telescopic rods and multiple groups of first springs, the two groups of delivery pipes are respectively mounted on the left and right sides of the lower mold, the two groups of cylinders are respectively mounted on the inner side walls of the shell, the top ends of the two groups of cylinders are communicated with the inside of the shell, the first pump body is mounted on the bottom end of the lower mold, the output end of the first pump body is communicated with the bottom end of the first group of delivery pipes, multiple groups of through holes are respectively communicated and arranged on the top ends of the two groups of delivery pipes, the two groups of annular plates are respectively mounted on the inner side walls of the two groups of cylinders, the two groups of cover plates are respectively arranged inside the two groups of cylinders, the top ends of the two groups of cover plates are respectively connected to the bottom ends of the multiple groups of telescopic rods, the multiple groups of telescopic rods are respectively mounted on the inner side walls of the two groups of cylinders, and the multiple groups of first springs are respectively fitted on the outer side walls of the multiple groups of telescopic rods; when the shell moves downward to close the upper mold and the lower mold, the top parts of the two groups of delivery pipes The top ends of the two delivery pipes push the two cover plates upwards respectively, so that the multiple through holes extend into the two cylinders respectively, and then the cooling water in the tank is extracted through the first pump body, and the extracted cooling water is transported to the first cylinder through the first delivery pipe, and the cooling water is transported to the shell through the first cylinder, and then the cooling water is transported to the second cylinder after passing through the shell, and then the cooling water in the shell is transported to the second delivery pipe through the second cylinder, so that the second delivery pipe returns the cooling water to the tank, and then the cooling water circulates in the shell, thereby improving the cooling effect of the upper mold, and when the shell moves upward and resets, the two cover plates are pushed downwards by multiple first springs, so that the two cover plates are covered on the tops of the two annular plates, thereby closing the two cylinders, thereby improving the convenience of cooling water flow and transportation in the tank and the shell.

[0008] Preferably, the conveying device includes a driving device, a picking device, a first guide, a first slider, a guide rail, a support block, a rotating shaft, a spur gear, a rack, a paddle and a bevel gear. The first guide is mounted on the inner wall of the tank body, the first slider is horizontally slidably mounted inside the first guide by the driving device, a picking device is provided at the top of the first slider, the picking device is used to pick up the plastic shaft seal formed on the lower mold, the guide rail is mounted on the inner wall of the tank body, the support block is slidably mounted on the guide rail, the top of the rotating shaft is rotatably connected to the bottom end of the first slider, the rotating shaft rotates through the support block, the spur gear is mounted at the bottom end of the rotating shaft, the rack is mounted on the inner wall of the tank body, the rack meshes with the spur gear, the paddle is rotatably mounted on the support block, and the two sets of bevel gears are respectively It is installed on the outer wall of the paddle and the rotating shaft, and two sets of bevel gears are meshed; the first slider is driven to move horizontally by the driving device, so that the first slider drives the picking device to move, so that the picking device picks up the plastic shaft seal and moves it for transportation; when the first slider moves, it drives the rotating shaft to move, and after the rotating shaft moves, it drives the spur gear to move, and the spur gear drives the rotating shaft to rotate by meshing with the rack, and at the same time, the rotating shaft drives the supporting block to move horizontally, and after the supporting block moves, it drives the paddle to move, and after the rotating shaft rotates, the paddle is driven to rotate through the two sets of bevel gears, so that the paddle mixes the cooling water in the tank body, and at the same time, the paddle is driven to move position by the supporting block, thereby improving the mixing uniformity of the cooling water, and improving the cooling uniformity and cooling effect of the cooling water on the lower mold.

[0009] Preferably, the supporting device comprises a bracket, a supporting plate, a first cylinder, a sleeve, a second spring, a push rod and a limit piece, the bracket is mounted on the top of the base, the supporting plate is slidably mounted on the bracket up and down, the first cylinder is mounted on the top of the bracket, the moving end of the first cylinder is connected to the top of the supporting plate, the sleeve is mounted on the top of the bracket, the second spring is mounted inside the sleeve, the upper part of the push rod is slidably mounted in the sleeve, the lower part of the push rod slides through the supporting plate and the shell and extends into the upper mold, and a protective sleeve is provided between the upper mold and the shell, the push rod passes through the protective sleeve, and the limit piece is mounted on the outer side wall of the push rod; through The first cylinder drives the support plate to move downward, so that the support plate drives the shell to move downward, thereby causing the shell to drive the upper mold to move downward and close the mold with the lower mold. When the shell and the upper mold move upward, the second spring elastically supports the ejector rod so that the bottom end of the ejector rod stays inside the upper mold, so that the ejector rod limits the top end of the formed plastic shaft seal to prevent the plastic shaft seal from sticking to the upper mold. As the support plate continues to move upward, the support plate pushes the limit piece to move upward, thereby causing the limit piece to drive the ejector rod to move upward, thereby separating the bottom end of the ejector rod from the plastic shaft seal, thereby improving the convenience of collecting the plastic shaft seal.

[0010] Preferably, the picking device includes a power device, a second guide member, a second slider, a telescopic arm, an arc box, a second cylinder and an electric rotating table, the second guide member is installed on the rotating end of the electric rotating table, the electric rotating table is installed on the top of the first slider, the second slider is installed on the second guide member by sliding up and down through the power device, the telescopic arm is installed on the outer wall of the second slider, the arc box is installed on the outer wall of the telescopic arm, a suction cup is provided on the arc box, and the second cylinder is installed on the outer wall of the telescopic arm; the telescopic arm is driven to extend and move by the second cylinder, so that the telescopic arm drives the arc box to contact the plastic shaft seal formed on the lower mold, and then the arc box is sucked by an external suction device, so that the arc box picks up the plastic shaft seal through the suction cup, and then the electric rotating table is rotated to cooperate with the power device to drive the second slider to move up and down, and at the same time cooperate with the driving device to drive the first slider to move horizontally, so that the plastic shaft seal is moved and transported, thereby improving the convenience of automatic unloading of the plastic shaft seal.

[0011] Preferably, it also includes a conveying box, a second pump body and a refrigerator, the conveying box is installed on the outer wall of the base, the input end of the second pump body is connected to the tank body, the output end of the second pump body is connected to the inside of the conveying box, the output end of the conveying box is connected to the base, the refrigerator is installed on the outer wall of the conveying box, and the refrigeration end of the refrigerator is connected to the inside of the conveying box; the cooling water in the tank body is extracted by the second pump body, the extracted cooling water flows back into the tank body after passing through the conveying box, and the cooling water flowing in the conveying box is cooled by the refrigerator, thereby cooling the cooling water in the tank body, thereby improving the cooling efficiency of the cooling water on the lower mold and the upper mold.

[0012] Preferably, the driving device includes a first lead screw and a first motor, the first lead screw is rotatably mounted on the inner wall of the first guide member, the first slider is threadedly mounted on the first lead screw, the first motor is mounted on the outer wall of the base, and the output end of the first motor is connected to the first lead screw; the first motor drives the first lead screw to rotate, so that the first lead screw drives the first slider to slide horizontally.

[0013] Preferably, the power device includes a second lead screw and a second motor, the second lead screw is rotatably mounted on the inner wall of the second guide member, the second slider is threaded on the second lead screw, the second motor is mounted on the top of the second guide member, and the output end of the second motor is connected to the second lead screw; the second motor drives the second lead screw to rotate, so that the second lead screw drives the second slider to move up and down, thereby improving the convenience of moving the arc box to pick up and transport the plastic shaft seal.

[0014] Preferably, two sets of sealing rings are also included, which are respectively installed on the outer side walls of the bottom of the two sets of annular plates; when the two sets of delivery pipes pass through the interior of the two sets of annular plates, the two sets of sealing rings are used to seal the two sets of delivery pipes and the two sets of annular plates, thereby reducing the leakage of cooling water in the shell.

[0015] Preferably, a thermometer is provided in the tank body; the temperature of the cooling water in the tank body is detected by the thermometer to improve the reliability of cooling and temperature reduction in the plastic shaft seal processing.

[0016] Compared with the prior art, the present invention has the following beneficial effects: the shell is driven to move downward by the supporting device, so that the shell drives the upper mold to move downward and close the film with the lower mold, and then the plastic raw material is conveyed to the inside of the upper mold through the feeding pipe, so that the raw material is cooled and formed in the upper mold and the lower mold. After the plastic shaft seal is formed, the upper mold is driven to move upward by the supporting device, so that the plastic shaft seal stays in the lower mold, and then the plastic shaft seal formed on the lower mold is collected and moved and conveyed by the conveying device. The conveying device mixes the cooling water in the tank body while conveying the plastic shaft seal, thereby improving the temperature uniformity of the cooling water and the cooling efficiency of the cooling water, so that the lower part of the lower mold is immersed in the cooling water in the tank body, so that the lower mold is continuously cooled and cooled. After the upper mold and the lower mold are closed, the circulation device circulates the cooling water in the tank body in the shell, so that the cooling water cools the lower mold and the upper mold at the same time, thereby improving the cooling and molding efficiency of the plastic shaft seal and improving the convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the axonometric structure of the present invention; Figure 2 It is a schematic diagram of the axonometric partial structure of the connection between the upper mold and the shell; Figure 3 It is a schematic diagram of the axonometric local structure of the connection between the shell and the cylinder; Figure 4 It is a schematic diagram of the axonometric local structure of the connection between the cylinder and the annular plate; Figure 5 It is a schematic diagram of the axonometric structure of the connection between the base and the bracket; Figure 6 It is a schematic diagram of the axonometric local structure of the connection between the support block and the blades, etc.; Figure 7 It is a schematic diagram of the axonometric local structure of the connection between the bracket and the sleeve, etc.; Figure 8 It is a schematic diagram of the axonometric local structure of the connection between the telescopic arm and the arc box, etc.; Fig. 9 It is a schematic diagram of the axonometric structure of the connection between the lower mold and the conveying pipe, etc.; Fig.10 It is a schematic diagram of the axonometric local structure of the connection between the trough body and the rack etc.; Fig.11 It is a schematic diagram of the partial structure of the axonometric view of the connection between the bevel gear and the rotating shaft; Fig.12 It is an axonometric partial structural diagram of the connection between the delivery pipe and the first pump body, etc.

[0018] Markings in the accompanying drawings: 101, base; 102, tank; 103, lower mold; 104, upper mold; 105, shell; 106, feed pipe; 201, delivery pipe; 202, first pump body; 203, through hole; 204, cylinder; 205, annular plate; 206, cover plate; 207, telescopic rod; 208, first spring; 301, first guide member; 302, first slider; 303, guide rail; 304, support block; 305, rotating shaft; 306, spur gear; 307, rack; 308, paddle; 309, Bevel gear; 401, bracket; 402, support plate; 403, first cylinder; 404, sleeve; 405, second spring; 406, push rod; 407, limiter; 501, second guide; 502, second slider; 503, telescopic arm; 504, arc box; 505, second cylinder; 506, electric rotary table; 601, conveying box; 602, second pump body; 603, refrigerator; 701, first lead screw; 702, first motor; 801, second lead screw; 802, second motor; 901, sealing ring. DETAILED DESCRIPTION

[0019] In order to facilitate understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0020] Example 1 The invention discloses a highly wear-resistant and temperature-resistant plastic shaft seal molding device for a vacuum pump, comprising a base 101 and a tank body 102, wherein the tank body 102 is arranged on the base 101, and cooling water is arranged in the tank body 102; the invention also comprises a supporting device, a circulating device, a conveying device, a lower mold 103, an upper mold 104, a shell 105 and a feeding pipe 106, wherein the lower mold 103 is arranged on the inner wall of the tank body 102, a supporting device is arranged on the top of the base 101, and the supporting device is used to drive the shell 105 to move up and down, the upper mold 104 is arranged on the inner wall of the shell 105, and the output end of the feeding pipe 106 is connected with the upper mold 104, the circulating device is arranged on the lower mold 103 and the shell 105, and the circulating device is used to circulate and convey the cooling water, the conveying device is arranged on the inner wall of the tank body 102, the conveying device is used to collect the molded plastic shaft seal, and the conveying device is used to mix the cooling water in the tank body 102.

[0021] The circulation device includes two groups of delivery pipes 201, a first pump body 202, multiple groups of through holes 203, two groups of cylinders 204, two groups of annular plates 205, two groups of cover plates 206, multiple groups of telescopic rods 207 and multiple groups of first springs 208. The two groups of delivery pipes 201 are respectively installed on the left and right sides of the lower mold 103, the two groups of cylinders 204 are respectively installed on the inner side walls of the shell 105, the tops of the two groups of cylinders 204 are connected to the shell 105, the first pump body 202 is installed at the bottom of the lower mold 103, and the first pump body 202 The output end is connected to the bottom end of the first group of delivery pipes 201, and multiple groups of through holes 203 are respectively connected and arranged at the top ends of the two groups of delivery pipes 201. Two groups of annular plates 205 are respectively installed on the inner walls of the two groups of cylinders 204. Two groups of cover plates 206 are respectively arranged inside the two groups of cylinders 204. The top ends of the two groups of cover plates 206 are respectively connected to the bottom ends of multiple groups of telescopic rods 207. Multiple groups of telescopic rods 207 are respectively installed on the inner walls of the two groups of cylinders 204. Multiple groups of first springs 208 are respectively fitted on the outer walls of the multiple groups of telescopic rods 207.

[0022] In this embodiment, the housing 105 is driven downward by the support device, so that the housing 105 drives the upper mold 104 to move downward to close the film with the lower mold 103, and then the plastic raw material is conveyed to the interior of the upper mold 104 through the feed pipe 106, so that the raw material is cooled and formed in the upper mold 104 and the lower mold 103. After the plastic shaft seal is formed, the upper mold 104 is driven upward by the support device, so that the plastic shaft seal stays in the lower mold 103, and then the plastic shaft seal formed on the lower mold 103 is collected and moved and conveyed by the conveying device. The device mixes the cooling water in the tank body 102 while conveying the plastic shaft seal, thereby improving the temperature uniformity of the cooling water and the cooling efficiency of the cooling water, so that the lower part of the lower mold 103 is immersed in the cooling water in the tank body 102, so that the lower mold 103 is continuously cooled. After the upper mold 104 and the lower mold 103 are closed, the circulation device circulates the cooling water in the tank body 102 in the shell 105, so that the cooling water cools down the lower mold 103 and the upper mold 104 at the same time, thereby improving the cooling and molding efficiency of the plastic shaft seal and improving the convenience of use.

[0023] Example 2 On the basis of Example 1, the present invention is a highly wear-resistant and heat-resistant plastic shaft seal molding device for a vacuum pump, wherein the conveying device includes a driving device, a picking device, a first guide member 301, a first slider 302, a guide rail 303, a support block 304, a rotating shaft 305, a spur gear 306, a rack 307, a paddle 308 and a bevel gear 309, the first guide member 301 is installed on the inner wall of the tank body 102, the first slider 302 is horizontally slidably installed inside the first guide member 301 through the driving device, and a picking device is provided at the top of the first slider 302, and the picking device is used to transfer the lower mold 10 3, the plastic shaft seal molded on the groove 102 is picked up, the guide rail 303 is installed on the inner wall of the groove body 102, the support block 304 is slidably installed on the guide rail 303, the top of the rotating shaft 305 is rotatably connected with the bottom end of the first sliding block 302, the rotating shaft 305 rotates through the supporting block 304, the spur gear 306 is installed at the bottom end of the rotating shaft 305, the rack 307 is installed on the inner wall of the groove body 102, the rack 307 is meshed with the spur gear 306, the paddle 308 is rotatably installed on the supporting block 304, and two sets of bevel gears 309 are respectively installed on the paddle 308 and the outer wall of the rotating shaft 305, and the two sets of bevel gears 309 are meshed.

[0024] The supporting device includes a bracket 401, a supporting plate 402, a first cylinder 403, a sleeve 404, a second spring 405, a push rod 406 and a limiter 407. The bracket 401 is installed at the top of the base 101, the supporting plate 402 is slidably installed on the bracket 401 up and down, the first cylinder 403 is installed at the top of the bracket 401, the moving end of the first cylinder 403 is connected to the top of the supporting plate 402, the sleeve 404 is installed at the top of the bracket 401, the second spring 405 is installed inside the sleeve 404, the upper part of the push rod 406 is slidably installed in the sleeve 404, the lower part of the push rod 406 slides through the supporting plate 402 and the shell 105 and extends into the upper mold 104, and a protective sleeve is provided between the upper mold 104 and the shell 105, the push rod 406 passes through the protective sleeve, and the limiter 407 is installed on the outer side wall of the push rod 406.

[0025] The picking device includes a power device, a second guide member 501, a second slider 502, a telescopic arm 503, an arc box 504, a second cylinder 505 and an electric rotating table 506. The second guide member 501 is installed on the rotating end of the electric rotating table 506, the electric rotating table 506 is installed on the top of the first slider 302, the second slider 502 is installed on the second guide member 501 by sliding up and down through the power device, the telescopic arm 503 is installed on the outer wall of the second slider 502, the arc box 504 is installed on the outer wall of the telescopic arm 503, a suction cup is provided on the arc box 504, and the second cylinder 505 is installed on the outer wall of the telescopic arm 503.

[0026] It also includes a conveying box 601, a second pump body 602 and a refrigerator 603. The conveying box 601 is installed on the outer wall of the base 101, the input end of the second pump body 602 is connected to the tank body 102, the output end of the second pump body 602 is connected to the inside of the conveying box 601, the output end of the conveying box 601 is connected to the base 101, the refrigerator 603 is installed on the outer wall of the conveying box 601, and the refrigeration end of the refrigerator 603 is connected to the inside of the conveying box 601.

[0027] The driving device includes a first screw 701 and a first motor 702. The first screw 701 is rotatably mounted on the inner wall of the first guide member 301. The first slider 302 is screwed on the first screw 701. The first motor 702 is mounted on the outer wall of the base 101. The output end of the first motor 702 is connected to the first screw 701.

[0028] The power device includes a second lead screw 801 and a second motor 802. The second lead screw 801 is rotatably mounted on the inner wall of the second guide member 501. The second slider 502 is screwed on the second lead screw 801. The second motor 802 is mounted on the top of the second guide member 501. The output end of the second motor 802 is connected to the second lead screw 801.

[0029] It also includes two groups of sealing rings 901 , which are respectively installed on the outer side walls of the bottoms of the two groups of annular plates 205 .

[0030] A thermometer is disposed in the tank body 102 .

[0031] In this embodiment, when the housing 105 moves downward to close the upper mold 104 and the lower mold 103, the tops of the two groups of delivery pipes 201 are respectively inserted into the two groups of cylinders 204, and the tops of the two groups of delivery pipes 201 push the two groups of cover plates 206 to move upward, so that the multiple groups of through holes 203 extend into the two groups of cylinders 204, and then the cooling water in the tank 102 is extracted by the first pump body 202, and the extracted cooling water is transported to the first group of cylinders 204 through the first group of delivery pipes 201. The cooling water is passed through the first group of delivery pipes 201. The cooling water is transported to the inside of the shell 105 through the first group of cylinders 204, and then the cooling water is transported to the second group of cylinders 204 after passing through the shell 105. Then, the cooling water in the shell 105 is transported to the second group of delivery pipes 201 through the second group of cylinders 204, so that the second group of delivery pipes 201 return the cooling water to the tank 102, thereby allowing the cooling water to circulate in the shell 105 to improve the cooling effect of the upper mold 104. When the shell 105 moves upward and resets, the two groups of cover plates are pushed by multiple groups of first springs 208. 206 moves downward, so that the two sets of cover plates 206 are installed on the top of the two sets of annular plates 205, thereby closing the two sets of cylinders 204, improving the convenience of cooling water flow and transportation in the tank body 102 and the shell 105, and driving the first slider 302 to move horizontally through the driving device, so that the first slider 302 drives the picking device to move, so that the picking device picks up the plastic shaft seal and then moves and transports it. When the first slider 302 moves, it drives the rotating shaft 305 to move, and after the rotating shaft 305 moves, it drives the spur gear 306 to move, and the spur gear 306 The rotating shaft 305 is driven to rotate by meshing with the rack 307, and the rotating shaft 305 drives the support block 304 to move horizontally. After the support block 304 moves, it drives the paddle 308 to move. After the rotating shaft 305 rotates, the paddle 308 is driven to rotate through two sets of bevel gears 309, so that the paddle 308 mixes the cooling water in the trough body 102. At the same time, the paddle 308 is driven to move its position through the support block 304, thereby improving the mixing uniformity of the cooling water, and improving the cooling uniformity and cooling effect of the cooling water on the lower mold 103.

[0032] like Figures 1 to 12As shown, a highly wear-resistant and temperature-resistant plastic shaft seal molding device for a vacuum pump of the present invention, when working, drives the shell 105 to move downward through the supporting device, so that the shell 105 drives the upper mold 104 to move downward and close the film with the lower mold 103, and then the plastic raw material is transported to the interior of the upper mold 104 through the feeding pipe 106, so that the raw material is cooled and formed in the upper mold 104 and the lower mold 103. After the plastic shaft seal is formed, the upper mold 104 is driven to move upward by the supporting device, so that the plastic shaft seal stays in the lower mold 103, and then the plastic shaft seal formed on the lower mold 103 is collected and moved and transported by the conveying device. The conveying device mixes the cooling water in the trough body 102 while conveying the plastic shaft seal. When the upper mold 104 and the lower mold 103 are closed, the circulation device circulates and transports the cooling water in the trough body 102 in the shell 105, so that the cooling water cools down the lower mold 103 and the upper mold 104 at the same time.

[0033] The main function achieved by the present invention is: by immersing the lower part of the lower mold 103 in the cooling water in the tank body 102, the lower mold 103 is continuously cooled, and the cooling water is circulated in the shell 105, thereby improving the cooling effect of the upper mold 104 and improving the cooling molding efficiency of the plastic shaft seal.

[0034] The conveying device mixes the cooling water in the tank body 102 while conveying the plastic shaft seal, thereby improving the temperature uniformity of the cooling water and improving the cooling efficiency of the cooling water.

[0035] The first pump body 202, the first cylinder 403, the second cylinder 505, the electric rotating table 506, the second pump body 602, the refrigerator 603, the first motor 702 and the second motor 802 of the highly wear-resistant and temperature-resistant plastic shaft seal molding equipment of a vacuum pump of the present invention are purchased on the market, and technicians in the industry only need to install and operate them according to the accompanying instruction manual, without the need for creative labor by technicians in this field.

[0036] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A highly wear-resistant and heat-resistant plastic shaft seal molding device for a vacuum pump, comprising a base (101) and a tank body (102), wherein the tank body (102) is arranged on the base (101), and cooling water is arranged in the tank body (102); characterized in that: The invention also comprises a supporting device, a circulating device, a conveying device, a lower mold (103), an upper mold (104), a shell (105) and a feeding pipe (106); the lower mold (103) is mounted on the inner wall of the tank body (102); a supporting device is arranged at the top of the base (101); the supporting device is used to drive the shell (105) to move up and down; the upper mold (104) is mounted on the inner wall of the shell (105); the output end of the feeding pipe (106) is connected to the upper mold (104); the circulating device is arranged on the lower mold (103) and the shell (105); the circulating device is used to circulate and convey cooling water; the conveying device is mounted on the inner wall of the tank body (102); the conveying device is used to collect the formed plastic shaft seal; and the conveying device is used to mix the cooling water in the tank body (102).

2. A highly wear-resistant and heat-resistant plastic shaft seal molding device for a vacuum pump as claimed in claim 1, characterized in that: The circulation device comprises two groups of delivery pipes (201), a first pump body (202), a plurality of through holes (203), two groups of cylinders (204), two groups of annular plates (205), two groups of cover plates (206), a plurality of groups of telescopic rods (207) and a plurality of groups of first springs (208). The two groups of delivery pipes (201) are respectively mounted on the left and right sides of the lower mold (103), the two groups of cylinders (204) are respectively mounted on the inner side walls of the shell (105), the top ends of the two groups of cylinders (204) are both connected to the inside of the shell (105), the first pump body (202) is mounted on the bottom end of the lower mold (103), and the first pump body (204) is mounted on the inner side walls of the shell (105). The output end of the two conveying pipes (202) is connected to the bottom end of the first conveying pipe (201), the plurality of through holes (203) are respectively connected and arranged at the top ends of the two conveying pipes (201), the two annular plates (205) are respectively installed on the inner side walls of the two cylinders (204), the two cover plates (206) are respectively arranged inside the two cylinders (204), the top ends of the two cover plates (206) are respectively connected to the bottom ends of the plurality of telescopic rods (207), the plurality of telescopic rods (207) are respectively installed on the inner side walls of the two cylinders (204), and the plurality of first springs (208) are respectively fitted on the outer side walls of the plurality of telescopic rods (207).

3. The highly wear-resistant and heat-resistant plastic shaft seal molding device for a vacuum pump as claimed in claim 1, characterized in that: The conveying device comprises a driving device, a picking device, a first guide member (301), a first slider (302), a guide rail (303), a support block (304), a rotating shaft (305), a spur gear (306), a rack (307), a paddle (308) and a bevel gear (309), wherein the first guide member (301) is mounted on the inner side wall of the tank body (102), the first slider (302) is horizontally slidably mounted inside the first guide member (301) through the driving device, a picking device is arranged at the top end of the first slider (302), and the picking device is used to pick up the plastic shaft seal formed on the lower mold (103), and the guide rail (303) is mounted on the tank body (102). The support block (304) is slidably mounted on the guide rail (303), the top of the rotating shaft (305) is rotatably connected to the bottom of the first sliding block (302), the rotating shaft (305) rotates through the supporting block (304), the spur gear (306) is mounted on the bottom of the rotating shaft (305), the rack (307) is mounted on the inner wall of the slot body (102), the rack (307) is meshed with the spur gear (306), the blade (308) is rotatably mounted on the supporting block (304), and two sets of bevel gears (309) are respectively mounted on the outer walls of the blade (308) and the rotating shaft (305), and the two sets of bevel gears (309) are meshed.

4. A highly wear-resistant and heat-resistant plastic shaft seal molding device for a vacuum pump as claimed in claim 1, characterized in that: The support device comprises a bracket (401), a support plate (402), a first cylinder (403), a sleeve (404), a second spring (405), a push rod (406) and a stopper (407), wherein the bracket (401) is mounted on the top of the base (101), the support plate (402) is mounted on the bracket (401) in an up-and-down sliding manner, the first cylinder (403) is mounted on the top of the bracket (401), the moving end of the first cylinder (403) is connected to the top of the support plate (402), and the sleeve (405) is connected to the top of the support plate (402). 4) is installed at the top of the bracket (401), the second spring (405) is installed inside the sleeve (404), the upper part of the push rod (406) is slidably installed in the sleeve (404), the lower part of the push rod (406) slides through the support plate (402) and the shell (105) and extends into the upper mold (104), and a protective sleeve is provided between the upper mold (104) and the shell (105), the push rod (406) passes through the protective sleeve, and the limiter (407) is installed on the outer wall of the push rod (406).

5. The highly wear-resistant and heat-resistant plastic shaft seal molding device for a vacuum pump as claimed in claim 3, characterized in that: The picking device comprises a power device, a second guide member (501), a second slider (502), a telescopic arm (503), an arc box (504), a second cylinder (505) and an electric rotating table (506), wherein the second guide member (501) is mounted on the rotating end of the electric rotating table (506), the electric rotating table (506) is mounted on the top of the first slider (302), the second slider (502) is mounted on the second guide member (501) by sliding up and down through the power device, the telescopic arm (503) is mounted on the outer wall of the second slider (502), the arc box (504) is mounted on the outer wall of the telescopic arm (503), a suction cup is arranged on the arc box (504), and the second cylinder (505) is mounted on the outer wall of the telescopic arm (503).

6. The highly wear-resistant and heat-resistant plastic shaft seal molding device for a vacuum pump as claimed in claim 1, characterized in that: It also includes a delivery box (601), a second pump body (602) and a refrigerator (603); the delivery box (601) is mounted on the outer wall of the base (101); the input end of the second pump body (602) is connected to the tank body (102); the output end of the second pump body (602) is connected to the inside of the delivery box (601); the output end of the delivery box (601) is connected to the base (101); the refrigerator (603) is mounted on the outer wall of the delivery box (601); and the refrigeration end of the refrigerator (603) is connected to the inside of the delivery box (601).

7. A highly wear-resistant and heat-resistant plastic shaft seal molding device for a vacuum pump as claimed in claim 3, characterized in that: The driving device comprises a first lead screw (701) and a first motor (702); the first lead screw (701) is rotatably mounted on the inner wall of the first guide member (301); the first slider (302) is threadedly mounted on the first lead screw (701); the first motor (702) is mounted on the outer wall of the base (101); and the output end of the first motor (702) is connected to the first lead screw (701).

8. The highly wear-resistant and heat-resistant plastic shaft seal molding device for a vacuum pump as claimed in claim 5, characterized in that: The power device comprises a second lead screw (801) and a second motor (802); the second lead screw (801) is rotatably mounted on the inner wall of the second guide member (501); the second slider (502) is threadedly mounted on the second lead screw (801); the second motor (802) is mounted on the top end of the second guide member (501); and the output end of the second motor (802) is connected to the second lead screw (801).

9. A highly wear-resistant and heat-resistant plastic shaft seal molding device for a vacuum pump as claimed in claim 2, characterized in that: It also includes two sets of sealing rings (901), which are respectively mounted on the outer side walls of the bottoms of the two sets of annular plates (205).

10. The highly wear-resistant and heat-resistant plastic shaft seal molding device for a vacuum pump as claimed in claim 1, characterized in that: A thermometer is arranged in the tank body (102).

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