Blastocyst flaring puncture device

Abstract

The invention discloses a blastocyst flaring puncture device which comprises a base, a vertical shaft installed on the base, an expansion bag wrapping the vertical shaft and capable of being expanded, a plurality of mold petals, a mold closing mechanism used for driving the mold petals of a mold to be opened or closed, puncture holes formed in the mold petals and a plurality of puncture assemblies. Each puncture assembly comprises a puncture mounting plate, a plurality of puncture needles which are mounted on the puncture mounting plate and penetrate through the puncture holes, and a puncture driving part which is used for driving the puncture mounting plate to move towards the interior of the mold and in the direction of retreating from the interior of the mold; the shape of the blastocyst after bulging is limited through the closed die petals to complete flaring forming, when flaring forming is completed, the puncture mechanism conducts puncture, exhaust holes are formed in the surface layer of the blastocyst, two procedures can be completed through one-time tooling, and the machining efficiency of the blastocyst is greatly improved.

Description

Technical Field

[0001] The present invention belongs to the field of air spring accessories, and particularly relates to a blastocyst flaring and puncturing device. Background Art

[0002] In order to improve the driving stability, ride comfort, safety and comfort of passenger cars, passenger cars are generally equipped with an air suspension damping system. The most important component in the air suspension system is the bladder. During the forming process of the bladder, it is necessary to flare the blastocyst and puncture the outer surface of the blastocyst to facilitate the discharge of the gas inside the blastocyst material during the vulcanization of the blastocyst. The flaring and puncturing need to be independently completed by two sets of equipment in two steps, resulting in low production efficiency. Currently, in order to achieve flaring, patent applications such as those with publication numbers CN 221968933 U, CN 215035107 U, and CN109367081A all adopt the method of mating up and down along the axial direction of the blastocyst to achieve the positioning and limiting of the blastocyst; in order to achieve puncturing, CN 208052107U uses two parallel shafts, one shaft fixes the blastocyst, and a sleeve with spikes is arranged on the other shaft. When the sleeve rotates, the blastocyst is driven to rotate and is punctured at the same time; CN211164289U uses an inner support frame to fix the tire embryo, and then uses a nail plate moving along the direction perpendicular to the tire axis to achieve the puncturing of the embryo; the above flaring structures cannot complete puncturing, and the above puncturing structures cannot complete flaring; moreover, the puncturing device of CN211164289U cannot be directly combined with any of the above flaring structures to obtain a device that can complete the flaring and puncturing processes at one time. Summary of the Invention

[0003] The purpose of the present invention is to provide a blastocyst flaring and puncturing device, which can complete the flaring and puncturing processes at one time, greatly improving the production efficiency of the blastocyst.

[0004] To solve the above technical problems, the present invention adopts the following technical solutions: A blastocyst flaring and puncturing device, which includes: A base; An outer expansion mechanism, which is installed on the base. The outer expansion mechanism includes a vertical shaft installed on the base and an expandable expansion bladder wrapped around the vertical shaft; A mold, which includes a plurality of mold segments. The mold has a closed state and an open state. When the mold is in the closed state, all the mold segments are joined together to form a cylinder and sleeved on the outer expansion mechanism. When the mold is in the open state, all the mold segments are separated and distributed around the outer expansion mechanism; A mold clamping mechanism, which is installed on the base. The mold clamping mechanism is used to drive the mold to open or close; The blastocyst flaring and puncturing device further includes: The puncturing mechanism includes a puncturing hole provided on the die flap, and a number of puncturing components. Each puncturing component includes a puncturing mounting plate, a number of puncturing needles mounted on the puncturing mounting plate and passing through the puncturing hole, and a puncturing driving part for driving the puncturing mounting plate to move into and out of the mold. The puncturing mechanism has at least two states: extended and retracted. When the puncturing mechanism is in the extended state, part of the needle tip of the puncturing needle is located inside the mold. When the puncturing mechanism is in the retracted state, the needle tip of the puncturing needle is retracted into the puncturing hole or withdrawn from the die flap. First, the blastocyst is sleeved on the expansion bladder, and then the mold closing mechanism drives the molds to be joined together. Under the action of the air pump, the expansion bladder bulges, causing the blastocyst to adhere to the inner side wall of the mold. Subsequently, the puncturing driving part drives the puncturing mounting plate to move towards the vertical shaft, and the puncturing needle penetrates into the blastocyst without piercing through it, puncturing exhaust holes on the surface of the blastocyst. Then, the puncturing driving part drives the puncturing mounting plate to reset, completing the preliminary shaping and surface puncturing of the blastocyst, and preparing for exhausting gas in the next vulcanization process. After the puncturing needles are fully extended, the contour formed by the needle tips of all the puncturing needles is the same as the contour of the expanded blastocyst and slightly smaller than the contour of the expanded blastocyst.

[0005] In another embodiment, each puncturing driving part includes a first mounting plate fixed on the outer side surface of the die flap, and a first telescopic member mounted on the first mounting plate with its piston rod connected to the puncturing mounting plate. The first telescopic member pushes the puncturing mounting plate to move towards the vertical shaft.

[0006] In another embodiment, each puncturing driving part further includes a first guiding rod fixed on the outer side surface of the die flap, and a first guiding sleeve fixed on the puncturing mounting plate and sleeved on the first guiding rod. The cooperation between the first guiding sleeve and the first guiding rod makes the movement of the puncturing needle more stable and prevents the puncturing mounting plate from separating from the die flap.

[0007] In another embodiment, the mold closing mechanism includes a first guide rail and a second guide rail which are installed on the base and arranged in parallel, a first base and a second base which are slidably connected to the first guide rail and the second guide rail respectively, a driving gear rotatably connected to the base, a first rack fixed on the first base and a second rack fixed on the second base, and a second telescopic member for driving the first base to move. The first rack and the second rack are respectively arranged on both sides of the driving gear and both mesh with the driving gear. The first rack and the second rack are parallel to the first guide rail. The second telescopic member is installed below the base, and a notch is provided on the base for the second telescopic member to be connected to the first base and to make way for the connection part. When the second telescopic member drives the first base to move, through the cooperation of the driving gear, the first rack and the second rack, the second base can be driven to move in the opposite direction to the first base, thereby realizing the opening or closing of the die flap.

[0008] In another embodiment, the mold clamping mechanism includes a third telescopic member installed on one of the mold petals, a locking block installed on an adjacent mold petal and provided with a locking hole, and a locking pin connected to the third telescopic member. When the mold petals are assembled, the third telescopic member drives the locking pin to insert into the locking hole, and the axis of the locking hole is not parallel to the assembling direction of the mold petals.

[0009] In another embodiment, the mold clamping mechanism further includes a guiding block installed on the mold petal where the third telescopic member is located. The locking pin passes through the guiding block. When the mold petals are assembled, the locking hole is aligned with the locking pin, and the third telescopic member drives the locking pin to insert into the locking hole, and the mold petals are assembled and locked.

[0010] In another embodiment, there are multiple locking blocks, and at least two of them are arranged vertically on the mold petal. The guiding blocks correspond to the locking blocks one by one, and the locking pins correspond to the locking blocks one by one. The mold clamping mechanism further includes a locking connecting rod. The locking pins on the same side of the same mold petal are rotatably connected to the same locking connecting rod, and the third telescopic member is connected to each locking pin through the locking connecting rod. When the third telescopic member acts, the locking pins corresponding to the third telescopic member act synchronously with the third telescopic member.

[0011] In another embodiment, the expansion bladder is cylindrical. The outer expansion mechanism further includes an upper sealing cover connected to the upper end of the vertical shaft and sealing and pressing the upper end of the expansion bladder on the vertical shaft, and a lower sealing cover connected to the lower end of the vertical shaft and sealing and pressing the lower end of the expansion bladder on the vertical shaft. The upper sealing cover and the lower sealing cover are threadedly fixed on the vertical shaft. An air charging and discharging hole communicating with the circumferential surface is provided on the lower end surface of the vertical shaft, and an air source is connected to the air charging and discharging hole.

[0012] In another embodiment, the puncture holes on each mold petal are parallel to the moving direction of the mold petal where they are located. At this time, the travel of the puncture needles at the two side positions is the same as that of the puncture needles at the middle position. However, since the puncture needles at the two side positions do not penetrate the blastocyst along the radial direction of the blastocyst, the depth of penetration of the puncture needles into the blastocyst is less than that of the puncture needles at the middle position; or the axis of each puncture hole is perpendicular to and passes through the axis of the vertical shaft. The puncture needle has elasticity in its radial direction. The puncture mounting plate can be arc-shaped or flat-shaped matching the inflated blastocyst. When the puncture mounting plate is flat-shaped and the axis of the puncture hole passes through the axis of the vertical shaft, the translating puncture mounting plate drives the puncture needle to move in the puncture hole, and the puncture needles at the two side positions are deformed along with the guidance of the puncture holes. When the puncture needle penetrates out, the axis of the front end of the puncture needle will also pass through the axis of the vertical shaft. This puncture method can make the puncture depth more consistent.

[0013] In another embodiment, the mold clamping mechanism further includes a plurality of third guide rails radially distributed around the vertical shaft with the axis of the vertical shaft as the center line, a fourth telescopic member fixed on the base and telescoping in a direction towards or away from the center line, and a first support rod connected between the base and the fourth telescopic member.

[0014] In another embodiment, the first support rod is L-shaped, and the mold clamping mechanism further includes a second guide rod connected between the mold flap and the puncture mounting plate to enable the puncture mounting plate to slide relative to the mold flap along the corresponding third guide rail. Each of the third guide rails corresponds to each mold flap respectively, and each mold flap is slidably connected to the corresponding third guide rail. The puncture driving portion further includes a first elastic member sleeved on the puncture needle and configured to always urge the puncture needle to move from the mold flap where it is located towards the puncture mounting plate where it is located. The first elastic member is located within the puncture hole, and the force required to compress all the first elastic members on the same mold flap is not less than the frictional force of the mold flap on the third guide rail. When it is necessary to flare the blastocyst, at this time the mold is in the open state. First, fix the blastocyst on the external expansion mechanism, and then the fourth telescopic member pushes the puncture mounting plate. The puncture needle pushes the compression member, and the compression member pushes the mold flap towards the vertical shaft. When the mold flaps gather, the mold is in the closed state. The expansion bladder bulges under the action of the air pump, causing the blastocyst to adhere to the inner side wall of the mold. Subsequently, the fourth telescopic member overcomes the elastic force of the first elastic member and pushes the puncture mounting plate to continue moving towards the vertical shaft. The puncture needle penetrates into the blastocyst without piercing through it, and exhaust holes are punctured on the surface of the blastocyst. Subsequently, the fourth telescopic member retracts, driving the puncture mounting plate to return. The puncture mounting plate brings back the mold flap through the limiting structures at both ends of the second guide rod, completing the reset and the preliminary shaping of the blastocyst, and preparing for exhausting gas in the next vulcanization process. After the puncture needles fully extend, the contour formed by the tips of all the puncture needles is the same as and slightly smaller than the contour of the blastocyst after inflation. Only one action of the fourth telescopic member is required to complete the closing of the mold flaps and the puncture of the blastocyst.

[0015] In another embodiment, a second guide sleeve for preventing the puncture mounting plate from completely separating from the mold flap is provided on the second guide rod. One end of the second guide rod is fixed to the mold flap, and the other end passes through the second guide sleeve fixed on the puncture mounting plate.

[0016] In another embodiment, the mold clamping mechanism further includes a first limiting plate disposed along the outer peripheral surface of each mold flap, and a first connecting rod connected between the lower end portions of the first limiting plate and the mold flap. There is a gap between the first limiting plate and the mold flap. The rear end of each puncture needle is connected to a puncture mounting plate. The upper end surface of the puncture mounting plate is provided with a first inclined surface, and the upper end portion of the first inclined surface is closer to the axis of the vertical shaft than the lower end portion of the first inclined surface. The puncture driving portion further includes a fifth telescopic member suspended above the mold, and a compression sleeve mounted on the telescopic rod of the fifth telescopic member.

[0017] In another embodiment, the puncture driving portion further includes a second elastic member sleeved on the puncture needle and used to always make the puncture needle move in the direction from its corresponding mold flap to its corresponding puncture mounting plate. The second elastic member is located in the puncture hole. When the mold is closed and the second elastic member is in a natural state, all the first inclined surfaces are on the path of the downward movement of the compression sleeve. When the compression sleeve moves downward, all the puncture needles are pressed into the mold together with the puncture mounting plate by the compression sleeve; when the compression sleeve moves upward, all the puncture mounting plates are pushed back to their original positions together with the puncture needles by the second elastic member.

[0018] In another embodiment, the lower end surface of the puncture mounting plate is provided with a second inclined surface, and the upper end portion of the second inclined surface is closer to the axis of the vertical shaft than the lower end portion of the second inclined surface. An inwardly radial pressing ring is provided on the inner side wall of the lower end portion of the compression sleeve. The pressing ring is provided with a notch for avoiding the puncture mounting plate and the puncture needle. The inner side wall of the pressing ring forms a third inclined surface matching the first inclined surface, and the inner circle of the upper end surface of the pressing ring matches the second inclined surface. When the pressing ring moves downward until the third inclined surface presses on the first inclined surface, the third inclined surface presses the puncture needle into the mold together with the puncture mounting plate. The pressing ring presses all the puncture needles into the mold from top to bottom to complete the puncture. At this time, the inner circle of the upper end surface of the pressing ring is located below all the second inclined surfaces. When the pressing ring moves upward, the inner circle of the upper end surface of the pressing ring squeezes the second inclined surface to move the puncture mounting plate backward, so that the puncture needle withdraws from the mold to complete the reset. This method can ensure that each puncture needle is reset.

[0019] In another embodiment, the puncture hole is an oval hole to prevent the puncture needle from rotating in the puncture hole.

[0020] In another embodiment, a sensor is embedded on the circumferential surface of the locking pin. When the locking pin is inserted into the locking block, the sensor outputs a signal to confirm that the locking action is completed.

[0021] The beneficial effects of the present invention are as follows: The present invention completes the flaring forming by limiting the shape of the blastocyst after swelling with a closed die flap. When the flaring forming is completed, the puncture mechanism performs puncture to form exhaust holes on the surface layer of the blastocyst, and two processes can be completed with one tooling, greatly improving the processing efficiency of the blastocyst. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 FIG. 6 is a perspective view of the blastocyst flaring and puncturing device in the first embodiment (the mold is in the open state); Figure 2 FIG. 7 is a front view of the blastocyst flaring and puncturing device in the first embodiment (the mold is in the open state); Figure 3 FIG. 8 is a top view of the blastocyst flaring and puncturing device in the first embodiment (the mold is in the open state); Figure 4 FIG. 9 is a cross-sectional view of the outer expansion mechanism in the first embodiment; Figure 5 FIG. 10 is a schematic structural diagram of the mold, the mold closing mechanism, and the puncture mechanism when the mold is closed in the second embodiment (partial decomposition state); Figure 6 FIG. 11 is a front view of the mold, the mold closing mechanism, and the puncture mechanism when the mold is closed in the second embodiment (six first support rods are not shown); Figure 7 FIG. 12 is a top view of the mold, the mold closing mechanism, and the puncture mechanism when the mold is closed in the second embodiment (six first support rods are not shown); Figure 8 FIG. 13 is a schematic structural diagram of the mold, the mold closing mechanism, and the puncture mechanism when the mold is closed in the third embodiment; Figure 9 FIG. 14 is a schematic structural diagram of the mold, the mold closing mechanism, and the puncture mechanism when the mold is closed in the third embodiment (partial decomposition state); Figure 10 For Figure 9 the enlarged view at A in Figure 11 FIG. 15 is a schematic structural diagram of the pressing ring in the fourth embodiment; Figure 12 For Figure 11 the partial view at B in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The present invention will be described in detail below with reference to the embodiments shown in the drawings: Embodiment 1, as Figure 1 shown, the blastocyst flaring and puncturing device includes: a base 9, an outer expansion mechanism 8, a mold 3, a mold closing mechanism 2, and a puncture mechanism 1.

[0024] As Figure 4As shown, the outward expansion mechanism 8 is installed on the base 9. The outward expansion mechanism 8 includes a vertical shaft 81 installed on the base 9 and an expandable expansion bladder 82 wrapped around the vertical shaft 81. The expansion bladder 82 is in a cylindrical shape; as Figures 1-3 shown, the mold 3 includes a plurality of mold petals 31. The mold 3 has a closed state and an open state. When the mold 3 is in the closed state, all the mold petals 31 are joined together to form a cylinder and sleeved on the outward expansion mechanism 8. When the mold 3 is in the open state, all the mold petals 31 are separated and distributed around the outward expansion mechanism 8. The mold closing mechanism 2 is installed on the base 9, and the mold closing mechanism 2 is used to drive the mold 3 to open or close; the puncture mechanism 1 includes puncture holes 11 provided on the mold petals 31 and a plurality of puncture assemblies 12. Each puncture assembly 12 includes a puncture mounting plate 13, a plurality of puncture needles 14 installed on the puncture mounting plate 13 and passing through the puncture holes 11, and a puncture driving part 15 for driving the puncture mounting plate 13 to move in the direction into and out of the mold 3. The puncture mechanism 1 has at least two states of extending and retracting; when the puncture mechanism 1 is in the extended state, the tip of the puncture needle 14 is partially located inside the mold 3. When the puncture mechanism 1 is in the retracted state, the tip of the puncture needle 14 is retracted into the puncture hole 11 or exits the mold petal 31; the puncture holes 11 on each mold petal 31 are parallel to the moving direction of the mold petal 31 where they are located. At this time, the stroke of the puncture needles 14 at the two side positions is the same as that of the puncture needles 14 at the middle position. However, since the puncture needles 14 at the two side positions do not penetrate the blastocyst along the radial direction of the blastocyst, the depth of penetration of the puncture needles 14 into the blastocyst is less than that of the puncture needles 14 at the middle position; in this embodiment, the axis of each puncture hole 11 is perpendicular to and passes through the axis of the vertical shaft 81. The puncture needle 14 has elasticity in its radial direction. The puncture mounting plate can be in an arc shape or a flat shape matching the expanded blastocyst. When the puncture mounting plate is in a flat shape and the axis of the puncture hole 11 passes through the axis of the vertical shaft 81, the translated puncture mounting plate drives the puncture needle 14 to move in the puncture hole 11, and the puncture needles 14 at the two side positions are deformed along with the guidance of the puncture hole 11. When the puncture needle 14 penetrates out, the axis of the front end of the puncture needle 14 will also pass through the axis of the vertical shaft 81. This puncture method can make the puncture depth more consistent.

[0025] Specifically, each puncture driving part 15 includes a first mounting plate 16 fixed on the outer side surface of the mold petal 31, a first telescopic member 17 installed on the first mounting plate 16 and whose piston rod is connected to the puncture mounting plate 13, a first guide rod 18 fixed on the outer side surface of the mold petal 31, and a first guide sleeve 19 fixed on the puncture mounting plate 13 and sleeved with the first guide rod 18. The first telescopic member 17 pushes the puncture mounting plate 13 to move towards the vertical shaft 81. The cooperation of the first guide sleeve 19 and the first guide rod 18 makes the movement of the puncture needle 14 more stable and prevents the puncture mounting plate 13 from separating from the mold petal 31.

[0026] The mold clamping mechanism 2 includes a first guide rail 21 and a second guide rail 22 which are installed on the base 9 and arranged in parallel, a first base 23 and a second base 24 which are slidably connected to the first guide rail 21 and the second guide rail 22 respectively, a driving gear 25 which is rotatably connected to the base 9, a first rack 26 which is fixed to the first base 23 and a second rack 27 which is fixed to the second base 24, a second telescopic member 28 for driving the first base 23 to move, a top mounting block 2110 which is fixed to the side wall of one of the mold petals 31, a third telescopic member 29 which is fixed to the top mounting block 2110 and located above the mold petal 31, a locking block 20 which is installed on the adjacent mold petal 31 and is provided with a locking hole 210, a locking pin 211 which is connected to the third telescopic member 29, a guide block 212 which is installed on the mold petal 31 where the third telescopic member 29 is located, a locking connecting rod 213, and a locking mounting block 214 which is connected to the piston rod of the third telescopic member 29. The locking connecting rod 213 is connected to each locking pin 211, the locking mounting block 214 is connected to the upper end of the locking connecting rod 213. There are multiple locking blocks 20, and at least two of them are arranged vertically on the mold petal 31. The guide block 212 corresponds to the locking block 20 one by one, and the locking pin 211 corresponds to the locking block 20 one by one. The locking pin 211 passes through the guide block 212. The locking pins 211 on the same side of the same mold petal 31 are rotatably connected to the same locking connecting rod 213. The first rack 26 and the second rack 27 are respectively arranged on both sides of the driving gear 25 and are both engaged with the driving gear 25. The first rack 26 and the second rack 27 are arranged parallel to the first guide rail 21. The second telescopic member 28 is installed below the base 9. The piston rod of the second telescopic member 28 is fixedly connected to the first base 23 through an upper and lower connecting block 92. The base 9 is provided with a first notch 91 for the second telescopic member 28 to be connected to the first base 23 and to make way for the upper and lower connecting block 92. When the second telescopic member 28 drives the first base 23 to move, the second base 24 and the first base 23 can be driven to move in opposite directions through the cooperation of the driving gear 25, the first rack 26 and the second rack 27, so as to realize the opening or closing of the mold petals 31. When the mold petals 31 are assembled, the locking hole 210 is aligned with the locking pin 211, and the third telescopic member 29 drives the locking pin 211 to insert into the locking hole 210. The axis of the locking hole 210 is not parallel to the assembling direction of the mold petals 31, and preferably perpendicular. At this time, the mold petals 31 are locked. A sensor is embedded on the circumferential surface of the locking pin 211. When the locking pin 211 is inserted into the locking block 20, the sensor outputs a signal to confirm that the locking action is completed.

[0027] The outer expansion mechanism 8 further includes an upper sealing cover 83 connected to the upper end of the vertical shaft 81 and sealingly pressing the upper end of the expansion bladder 82 onto the vertical shaft 81, and a lower sealing cover 84 connected to the lower end of the vertical shaft 81 and sealingly pressing the lower end of the expansion bladder 82 onto the vertical shaft 81. The upper sealing cover 83 and the lower sealing cover 84 are threadedly fixed to the vertical shaft 81. An air charging and discharging hole 85 communicating with the circumferential surface is formed on the lower end surface of the vertical shaft 81, and the air source is connected to the air charging and discharging hole 85.

[0028] First, the blastocyst is sleeved on the expansion bladder 82. When the second telescopic member 28 drives the first base 23 to move, through the cooperation of the driving gear 25, the first rack 26 and the second rack 27, the second base 24 can be driven to move towards the first base 23, so as to realize the closing of the die petals 31. Subsequently, the third telescopic member 29 drives the locking pin 211 to insert into the locking hole 210, and the die petals 31 are assembled and locked. The expansion bladder 82 bulges under the action of the air pump, so that the blastocyst fits on the inner side wall of the mold 3. Subsequently, the first telescopic member 17 drives the puncture mounting plate 13 to move towards the vertical shaft 81. After the puncture needles 14 completely extend out, the contour formed by the tips of all the puncture needles 14 is the same as the contour of the blastocyst after bulging and slightly smaller than the contour of the blastocyst after bulging. The puncture needles 14 penetrate into the blastocyst without penetrating through the blastocyst, and exhaust holes are punctured on the surface of the blastocyst. Subsequently, the first telescopic member 17 drives the puncture mounting plate 13 to reset, and the puncture needles 14 no longer extend out on the inner side wall of the mold 3, completing the preliminary shaping and surface puncture of the blastocyst, and preparing for exhausting gas in the next vulcanization process. Finally, the third telescopic member 29 drives the locking pin 211 to withdraw from the locking hole 210, the die petals 31 are unlocked, the second telescopic member 28 drives the first base 23 to retreat, and the first base 23 and the second base 24 move away from each other, so as to realize the opening of the die petals 31.

[0029] Embodiment 2, the blastocyst flaring and puncturing device includes: a base 9, an outer expansion mechanism 8, a mold 3, a mold closing mechanism 2, and a puncturing mechanism 1. The difference between this embodiment and Embodiment 1 lies in the mold 3, the mold closing mechanism 2, and the puncturing mechanism 1.

[0030] As Figures 5-7As shown in the figure, the expansion mechanism 8 is installed on the base 9. The expansion mechanism 8 includes a vertical shaft 81 installed on the base 9 and an expandable expansion bladder 82 wrapped around the vertical shaft 81. The expansion bladder 82 is in a cylindrical shape. The mold 3 includes a plurality of mold petals 31. The mold 3 has a closed state and an open state. When the mold 3 is in the closed state, all the mold petals 31 are joined together to form a cylinder and sleeved on the expansion mechanism 8. When the mold 3 is in the open state, all the mold petals 31 are separated and distributed around the expansion mechanism 8. The mold closing mechanism 2 is installed on the base 9 and is used to drive the mold 3 to open or close. The puncture mechanism 1 includes puncture holes 11 provided on the mold petals 31 and a plurality of puncture assemblies 12. Each puncture assembly 12 includes a puncture mounting plate 13, a plurality of puncture needles 14 installed on the puncture mounting plate 13 and passing through the puncture holes 11, and a puncture driving part 15 for driving the puncture mounting plate 13 to move into and out of the mold 3. The puncture mechanism 1 has at least two states of extending and retracting. When the puncture mechanism 1 is in the extended state, the tips of the puncture needles 14 are partially located inside the mold 3. When the puncture mechanism 1 is in the retracted state, the tips of the puncture needles 14 are retracted into the puncture holes 11 or withdrawn from the mold petals 31. The puncture holes 11 on each mold petal 31 are parallel to the moving direction of the mold petal 31 where they are located. At this time, the stroke of the puncture needles 14 at the two side positions is the same as that of the puncture needles 14 at the middle position. However, since the puncture needles 14 at the two side positions do not penetrate the blastocyst along the radial direction of the blastocyst, the depth of penetration of the puncture needles 14 into the blastocyst is less than that of the puncture needles 14 at the middle position. In this embodiment, the axis of each puncture hole 11 is perpendicular to and passes through the axis of the vertical shaft 81. The puncture needles 14 are elastic in their radial direction. The puncture mounting plate 13 can be in an arc shape or a flat shape matching the expanded blastocyst. When the puncture mounting plate 13 is in a flat shape and the axis of the puncture hole 11 passes through the axis of the vertical shaft 81, the translated puncture mounting plate 13 drives the puncture needles 14 to move in the puncture holes 11, and the puncture needles 14 at the two side positions are deformed along with the guidance of the puncture holes 11. When the puncture needles 14 penetrate, the axis of the front end of the puncture needles 14 will also pass through the axis of the vertical shaft 81. This puncture method can make the puncture depth more consistent.

[0031] The mold clamping mechanism 2 further includes a plurality of third guide rails 223 that are radially distributed around the vertical shaft 81 with the axis of the vertical shaft 81 as the center line, a fourth telescopic member 224 fixed to the base 9 and telescoping in the direction towards or away from the center line, and a first support rod 215 connected between the base 9 and the fourth telescopic member 224. The first support rod 215 is L-shaped. The mold clamping mechanism 2 further includes a second guide rod 216 connected between the die segment 31 and the puncture mounting plate 13 to make the puncture mounting plate 13 slide relative to the die segment 31 along the corresponding third guide rail 223. Each of the third guide rails 223 corresponds to each die segment 31 respectively, and each die segment 31 is slidably connected to the corresponding third guide rail 223. The puncture driving part 15 further includes a first elastic member 217 sleeved on the puncture needle 14 and used to make the puncture needle 14 always move in the direction from the die segment 31 where it is located to the puncture mounting plate 13 where it is located. The first elastic member 217 is located in the puncture hole 11, and the force required to compress all the first elastic members 217 on the same die segment 31 is not less than the frictional force of the die segment 31 on the third guide rail 223. A second guide sleeve 218 for preventing the puncture mounting plate 13 from completely detaching from the die segment 31 is provided on the second guide rod 216. One end of the second guide rod 216 is fixed to the die segment 31, and the other end passes through the second guide sleeve 218 fixed to the puncture mounting plate 13.

[0032] The outward expansion mechanism 8 further includes an upper sealing cover 83 connected to the upper end of the vertical shaft 81 and sealingly pressing the upper end of the expansion bladder 82 onto the vertical shaft 81, and a lower sealing cover 84 connected to the lower end of the vertical shaft 81 and sealingly pressing the lower end of the expansion bladder 82 onto the vertical shaft 81. The upper sealing cover 83 and the lower sealing cover 84 are threadedly fixed to the vertical shaft 81. An air charging and discharging hole 85 communicating with the circumferential surface is opened on the lower end surface of the vertical shaft 81, and the air source is connected to the air charging and discharging hole 85.

[0033] When it is necessary to expand the opening of the blastocyst, the mold 3 is in the open state at this time. First, fix the blastocyst on the outer expansion mechanism 8, and then the fourth telescopic member 224 pushes the puncture mounting plate 13. The puncture needle 14 pushes the compression member, and the compression member pushes the mold flap 31 to move towards the vertical shaft 81. When the mold flaps 31 are gathered, the mold 3 is in the closed state. The expansion bladder 82 bulges under the action of the air pump, making the blastocyst fit on the inner side wall of the mold 3. Then, the fourth telescopic member 224 overcomes the elastic force of the first elastic member 217 and pushes the puncture mounting plate 13 to continue moving towards the vertical shaft 81. The puncture needle 14 pierces into the blastocyst without penetrating it, and exhaust holes are punctured on the surface of the blastocyst. Then, the fourth telescopic member 224 retracts, driving the puncture mounting plate 13 to return. The puncture mounting plate 13 brings back the mold flaps 31 through the limiting structures at both ends of the second guide rod 216, completing the reset and the preliminary shaping of the blastocyst, and preparing for exhausting gas in the next vulcanization process. After the puncture needle 14 fully extends, the contour formed by the tips of all the puncture needles 14 is the same as and slightly smaller than the contour of the blastocyst after inflation. Only one action of the fourth telescopic member 224 is required to complete the closing of the mold flaps 31 and the puncture of the blastocyst.

[0034] Embodiment 3, the blastocyst opening expansion and puncture device includes: a base 9, an outer expansion mechanism 8, a mold 3, a mold closing mechanism 2, and a puncture mechanism 1. The difference between this embodiment and Embodiment 1 lies in the mold 3, the mold closing mechanism 2, and the puncture mechanism 1.

[0035] Such as Figures 8-10As shown, the outward expansion mechanism 8 is installed on the base 9. The outward expansion mechanism 8 includes a vertical shaft 81 installed on the base 9 and an expandable expansion bladder 82 wrapped around the vertical shaft 81. The expansion bladder 82 is cylindrical. The mold 3 includes a plurality of mold petals 31. The mold 3 has a closed state and an open state. When the mold 3 is in the closed state, all the mold petals 31 are joined together to form a cylinder and sleeved on the outward expansion mechanism 8. When the mold 3 is in the open state, all the mold petals 31 are separated and distributed around the outward expansion mechanism 8. The mold closing mechanism 2 is installed on the base 9 and is used to drive the mold 3 to open or close. The puncture mechanism 1 includes puncture holes 11 provided on the mold petals 31 and a plurality of puncture assemblies 12. Each puncture assembly 12 includes a puncture mounting plate 13, a plurality of puncture needles 14 installed on the puncture mounting plate 13 and passing through the puncture holes 11, and a puncture driving part 15 for driving the puncture mounting plate 13 to move towards the inside of the mold 3 and withdraw from the inside of the mold 3. The puncture mechanism 1 has at least two states of extending and retracting. When the puncture mechanism 1 is in the extended state, part of the needle tip of the puncture needle 14 is located inside the mold 3. When the puncture mechanism 1 is in the retracted state, the needle tip of the puncture needle 14 is retracted into the puncture hole 11 or withdrawn from the mold petal 31. The puncture holes 11 on each mold petal 31 are parallel to the moving direction of the mold petal 31 where they are located. At this time, the stroke of the puncture needles 14 at the two side positions is the same as that of the puncture needles 14 at the middle position. However, since the puncture needles 14 at the two side positions do not penetrate the blastocyst along the radial direction of the blastocyst, the depth of penetration of the puncture needles 14 at the two side positions into the blastocyst is less than the depth of penetration of the puncture needles 14 at the middle position into the blastocyst. In this embodiment, the axis of each puncture hole 11 is perpendicular to and passes through the axis of the vertical shaft 81.

[0036] The mold clamping mechanism 2 further includes several fourth guide rails 222 that are radially distributed around the vertical shaft 81 with the axis of the vertical shaft 81 as the center line, a first limiting plate 219 arranged along the outer peripheral surface of each die segment 31, a first connecting rod 220 connected between the lower end parts of the first limiting plate 219 and the die segment 31, and a sixth telescopic member 221 fixed between the base 9 and the first limiting plate 219 for driving the first limiting plate 219 and then driving the die segment 31 to move. There is a gap between the first limiting plate 219 and the die segment 31. The rear end of each puncture needle 14 is connected to a puncture mounting plate 13. The upper end surface of the puncture mounting plate 13 is provided with a first inclined surface 131, and the upper end part of the first inclined surface 131 is closer to the axis of the vertical shaft 81 than the lower end part of the first inclined surface 131. The puncture driving part 15 further includes a fifth telescopic member 10 suspended above the mold 3, a compression sleeve 110 mounted on the telescopic rod of the fifth telescopic member 10, and a second elastic member 111 sleeved on the puncture needle 14 and used to make the puncture needle 14 always have a tendency to move from the die segment 31 where it is located towards the puncture mounting plate 13 where it is located. The second elastic member 111 is located in the puncture hole 11. When the mold 3 is closed and the second elastic member 111 is in a natural state, all the first inclined surfaces 131 are on the path of the downward movement of the compression sleeve 110. When the compression sleeve 110 moves downward, all the puncture needles 14 and the puncture mounting plates 13 are pressed towards the inside of the mold 3 by the compression sleeve 110. When the compression sleeve 110 moves upward, all the puncture mounting plates 13 and the puncture needles 14 are pushed back to the original position by the second elastic member 111. The puncture hole 11 is an elliptical hole, which can prevent the puncture needle 14 from rotating in the puncture hole 11.

[0037] The outer expansion mechanism 8 further includes an upper sealing cover 83 connected to the upper end part of the vertical shaft 81 and sealing and pressing the upper end part of the expansion bladder 82 onto the vertical shaft 81, and a lower sealing cover 84 connected to the lower end part of the vertical shaft 81 and sealing and pressing the lower end part of the expansion bladder 82 onto the vertical shaft 81. The upper sealing cover 83 and the lower sealing cover 84 are threadedly fixed to the vertical shaft 81. An air charging and discharging hole 85 is opened on the lower end surface of the vertical shaft 81 and communicated to its circumferential surface. The air source is connected to the air charging and discharging hole 85.

[0038] First, the blastocyst is sleeved on the expansion bladder 82. Subsequently, the sixth telescopic member 221 drives the first limiting plate 219 and then drives the die segment 31 to move on the fourth guide rail 222, so that the mold 3 is assembled. The expansion bladder 82 bulges under the action of the air pump, making the blastocyst fit on the inner side wall of the mold 3. Subsequently, the fifth telescopic member 10 extends to drive the compression sleeve 110 to move downward. The compression sleeve 110 is inserted into the gap between the first limiting plate 219 and the die segment 31. The compression sleeve 110 pushes the puncture mounting plate 13, and all the puncture needles 14 and the puncture mounting plates 13 are pressed towards the inside of the mold 3 by the compression sleeve 110 to complete the puncture action. Subsequently, the fifth telescopic member 10 retracts. When the compression sleeve 110 moves upward, all the puncture mounting plates 13 and the puncture needles 14 are pushed back to the original position by the second elastic member 111.

[0039] Embodiment 4. The difference between this embodiment and Embodiment 3 lies in the structures of the compression sleeve 110 and the puncture mounting plate 13.

[0040] As Figures 11-12 shown, specifically, the lower end surface of the puncture mounting plate 13 is provided with a second inclined surface 132, and the upper end of the second inclined surface 132 is closer to the axis of the vertical shaft 81 than the lower end of the second inclined surface 132. An inwardly radial pressing ring 112 is provided on the inner side wall of the lower end of the compression sleeve 110. A second notch 114 for avoiding the puncture mounting plate 13 and the puncture needle 14 is formed on the pressing ring 112. The inner side wall of the pressing ring 112 forms a third inclined surface 113 that matches the first inclined surface 131. The inner ring of the upper end surface of the pressing ring 112 matches the second inclined surface 132. When the pressing ring 112 moves downward until the third inclined surface 113 presses on the first inclined surface 131, the third inclined surface 113 presses the puncture needle 14 into the mold 3 together with the puncture mounting plate 13. The pressing ring 112 presses all the puncture needles 14 into the mold 3 from top to bottom to complete the puncture. At this time, the inner ring of the upper end surface of the pressing ring 112 is located below all the second inclined surfaces 132. When the pressing ring 112 moves upward, the inner ring of the upper end surface of the pressing ring 112 squeezes the second inclined surface 132 to move the puncture mounting plate 13 backward, so that the puncture needle 14 withdraws from the mold 3 to complete the reset. This method can ensure that each puncture needle 14 completes the reset. The puncture hole 11 is an oval hole, which can prevent the puncture needle 14 from rotating in the puncture hole 11.

[0041] In the above embodiments, the first telescopic member 17, the second telescopic member 28, the third telescopic member 29, the fourth telescopic member 224, the fifth telescopic member 10, and the sixth telescopic member 221 are electric push rods, cylinders or hydraulic cylinders, and the first elastic member 217 and the second elastic member 111 are springs or elastic rubber sleeves.

[0042] The above embodiments are only used to illustrate the technical concept and characteristics of the present invention. The purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly, and it cannot be used to limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A blastocyst expansion and puncture device, comprising: Pedestal; An external expansion mechanism is installed on the base, and the external expansion mechanism includes a vertical shaft installed on the base, and an inflatable expansion bag covering the vertical shaft; A mold, comprising a plurality of mold halves, wherein the mold has a closed state and an open state. When the mold is in the closed state, all the mold halves are assembled to form a cylinder and sleeved on the outward expansion mechanism. When the mold is in the open state, all the mold halves are separated and distributed around the outward expansion mechanism. A mold clamping mechanism, which is installed on the base and is used to drive the mold to open or close; Characterized in that, the blastocyst expansion and puncture device also includes: A puncture mechanism, comprising a puncture hole provided on the mold halves, a plurality of puncture components, each of the puncture components comprising a puncture mounting plate, a plurality of puncture needles installed on the puncture mounting plate and pierced through the puncture hole, and a puncture drive unit for driving the puncture mounting plate to move in a direction toward and out of the mold, the puncture mechanism having at least two states of extension and retraction; when the puncture mechanism is in the extended state, a portion of the needle head of the puncture needle is located in the mold, and when the puncture mechanism is in the retracted state, the needle head of the puncture needle is retracted into the puncture hole or out of the mold halves.

2. The blastocyst expansion and puncture device according to claim 1, characterized in that: Each of the piercing drive parts comprises a first mounting plate fixed on the outer side of the mold half, a first telescopic member mounted on the first mounting plate and having a piston rod connected to the piercing mounting plate, and the first telescopic member pushes the piercing mounting plate to move toward the vertical axis.

3. The blastocyst expansion and puncture device according to claim 2, characterized in that: Each of the piercing drive parts further comprises a first guide rod fixed on the outer side of the mold half, and a first guide sleeve fixed on the piercing mounting plate and sleeved with the first guide rod.

4. The blastocyst expansion and puncture device according to claim 1, characterized in that: The clamping mechanism includes a first guide rail and a second guide rail installed on the base and arranged in parallel, a first base and a second base slidably connected to the first guide rail and the second guide rail, a driving gear rotatably connected to the base, a first rack fixed on the first base and a second rack fixed on the second base, and a second telescopic member for driving the first base to move, the first rack and the second rack are respectively arranged on both sides of the driving gear and are meshed with the driving gear, the first rack and the second rack are arranged parallel to the first guide rail, the second telescopic member is installed below the base, and a first notch is provided on the base for connecting the second telescopic member with the first base and making way for the connection.

5. The blastocyst expansion and puncture device according to claim 1, characterized in that: The mold clamping mechanism comprises a third telescopic member installed on one of the mold halves, a locking block installed on the adjacent mold halves and provided with a locking hole, and a locking pin connected to the third telescopic member.

6. The blastocyst expansion and puncture device according to claim 5, characterized in that: The mold clamping mechanism also includes a guide block installed on the mold half where the third telescopic member is located, and the locking pin is penetrated through the guide block.

7. The blastocyst expansion and puncture device according to claim 6, characterized in that: There are multiple locking blocks, at least two of which are arranged in upper and lower positions on the mold halves, the guide blocks correspond to the locking blocks one by one, the locking pins correspond to the locking blocks one by one, and the mold closing mechanism also includes a locking connecting rod, the locking pins on the same side of the same mold halves are rotatably connected to the same locking connecting rod, and the third telescopic member is connected to each of the locking pins through the locking connecting rod.

8. The blastocyst expansion and puncture device according to claim 1, characterized in that: The expansion bag is cylindrical, and the outward expansion mechanism also includes an upper sealing cover connected to the upper end of the vertical shaft and sealingly pressing the upper end of the expansion bag onto the vertical shaft, and a lower sealing cover connected to the lower end of the vertical shaft and sealingly pressing the lower end of the expansion bag onto the vertical shaft. The upper sealing cover and the lower sealing cover are threadedly fixed to the vertical shaft, and the lower end surface of the vertical shaft is provided with inflation and deflation holes connected to its peripheral surface.

9. The blastocyst expansion and puncture device according to claim 1, characterized in that: The puncture hole on each mold half is parallel to the moving direction of the mold half on which it is located; or the axis of each puncture hole is perpendicular to and passes through the axis of the vertical shaft, and the puncture needle is elastic in its radial direction.

10. The blastocyst expansion and puncture device according to claim 1, characterized in that: The mold clamping mechanism also includes a plurality of third guide rails distributed around the vertical shaft in a divergent manner with the axis of the vertical shaft as the center line, a fourth telescopic member fixed on the base and telescopic in a direction toward or away from the center line, and a first support rod connected between the base and the fourth telescopic member.

11. The blastocyst expansion and puncture device according to claim 10, characterized in that: The first support rod is L-shaped, and the mold closing mechanism also includes a second guide rod connected between the mold half and the puncture mounting plate to enable the puncture mounting plate to slide relative to the mold half along the third guide rail corresponding to it, each of the third guide rails corresponds to each of the mold half, and each of the mold half is slidably connected to the third guide rail corresponding to it; the puncture drive unit also includes a first elastic member that is sleeved on the puncture needle and is used to enable the puncture needle to always move from the mold half where it is located to the puncture mounting plate where it is located, and the first elastic member is located in the puncture hole, so that the force required to compress all the first elastic members on the same mold half is not less than the friction force of the mold half on the third guide rail.

12. The blastocyst expansion and puncture device according to claim 11, characterized in that: The second guide rod is provided with a second guide sleeve to prevent the piercing mounting plate from completely separating from the mold half. One end of the second guide rod is fixed to the mold half, and the other end is penetrated by the second guide sleeve fixed to the piercing mounting plate.

13. The blastocyst expansion and puncture device according to claim 10, characterized in that: The mold closing mechanism also includes a first limit plate arranged along the outer peripheral surface of each mold half, a first connecting rod connected between the first limit plate and the lower end of the mold half, a gap is provided between the first limit plate and the mold half, the rear end of each puncture needle is connected to a puncture mounting plate, the upper end surface of the puncture mounting plate is provided with a first inclined surface and the upper end of the first inclined surface is closer to the axis of the vertical shaft than the lower end of the first inclined surface, and the puncture drive unit also includes a fifth telescopic member suspended above the mold and a compression sleeve installed on the telescopic rod of the fifth telescopic member.

14. The blastocyst expansion and puncture device according to claim 13, characterized in that: The puncture drive unit also includes a second elastic member which is sleeved on the puncture needle and is used to enable the puncture needle to always move from the mold half where it is located to the puncture mounting plate where it is located. The second elastic member is located in the puncture hole. When the mold is closed and the second elastic member is in a natural state, all of the first inclined surfaces are on the path of the compression sleeve when it moves downward.

15. The blastocyst expansion and puncture device according to claim 13, characterized in that: The lower end surface of the puncture mounting plate is provided with a second inclined surface, and the upper end of the second inclined surface is closer to the axis of the vertical shaft than the lower end of the second inclined surface. A radially inward pressure ring is provided on the inner side wall of the lower end of the compression sleeve. A notch is provided on the pressure ring for avoiding the puncture mounting plate and the puncture needle. The inner side wall of the pressure ring forms a third inclined surface matching the first inclined surface, and the inner circle of the upper end surface of the pressure ring matches the second inclined surface.

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