Blastocyst expansion and puncture device

Abstract

The present invention discloses a blastocyst expansion and puncture device, which includes: a base, a vertical shaft installed on the base, an expansion sac covered on the vertical shaft and capable of expansion, a plurality of mold flaps, a mold-closing mechanism for driving the mold flaps to open or close, puncture holes provided on the mold flaps, and a plurality of puncture components, each puncture component including a puncture mounting plate, a plurality of puncture needles installed on the puncture mounting plate and penetrated through the puncture holes, and a puncture drive part for driving the puncture mounting plate to move in a direction toward and out of the mold; the expansion molding is completed by limiting the shape of the blastocyst after expansion through the closed mold flaps, and when the expansion molding is completed, the puncture mechanism performs puncture to form an exhaust hole on the surface of the blastocyst, and two processes can be completed by one tooling, thereby greatly improving the processing efficiency of the blastocyst.

Description

Technical Field

[0001] The invention belongs to the field of air spring accessories, and in particular relates to a blastocyst expansion and puncture device. Background Art

[0002] In order to improve the driving stability, smoothness, safety and comfort of passenger cars, passenger cars are generally equipped with air suspension vibration reduction systems. The more important component in the air suspension system is the bladder skin. During the molding process, the bladder skin needs to be expanded and the outer surface of the bladder needs to be pierced to facilitate the discharge of gas inside the bladder material during the vulcanization of the bladder. The expansion molding and piercing need to be completed independently by two sets of equipment in two steps, which has low production efficiency. At present, in order to achieve expansion molding, patent applications such as publication numbers: CN 221968933 U, CN 215035107 U, CN109367081A, etc. all use the method of up and down alignment along the axial direction of the blastocyst to achieve the positioning and limitation of the blastocyst; in order to achieve piercing, CN 208052107U uses two parallel axes, one axis fixes the blastocyst, and the other axis is provided with a sleeve with spikes. When the sleeve rotates, the blastocyst is driven to rotate and punctured at the same time; CN211164289U uses an internal support frame to fix the tire embryo, and then uses a nail plate that moves along the direction perpendicular to the tire axis to puncture the tire embryo; the above-mentioned expansion molding structure cannot complete the puncturing, and the above-mentioned puncturing structure cannot complete the expansion molding; and the puncturing device of CN211164289U cannot be directly combined with any of the above-mentioned expansion molding structures to obtain a device that can complete the expansion molding and puncturing processes at one time. Summary of the Invention

[0003] The purpose of the present invention is to provide a blastocyst expansion and puncture device, which can complete the expansion molding and puncture processes in one go, thereby greatly improving the production efficiency of the blastocyst.

[0004] To solve the above technical problems, the present invention adopts the following technical solution: a blastocyst expansion and puncture device, which comprises:

[0005] base;

[0006] an external expansion mechanism mounted on the base, the external expansion mechanism comprising a vertical shaft mounted on the base and an inflatable expansion bag covering the vertical shaft;

[0007] 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 cylindrical shape and sleeved on the expansion mechanism. When the mold is in the open state, all the mold halves are separated and distributed around the expansion mechanism.

[0008] A mold clamping mechanism, which is installed on the base and is used to drive the mold to open or close;

[0009] The blastocyst expansion and puncture device further comprises:

[0010] The puncture mechanism includes a puncture hole provided on the mold half, a plurality of puncture components, each of the puncture components includes a puncture mounting plate, a plurality of puncture needles installed on the puncture mounting plate and piercing the puncture hole, and a puncture drive part for driving the puncture mounting plate toward and out of the mold. The puncture mechanism has at least two states: extended and retracted. When the puncture mechanism is in the extended state, the needle head of the puncture needle is partially located in the mold, and when the puncture mechanism is in the retracted state, the puncture needle The needle is retracted into the puncture hole or exits the mold flap; the blastocyst is first placed on the expansion sac, and then the mold clamping mechanism drives the mold to be assembled. The expansion sac is inflated by the air pump, so that the blastocyst fits against the inner wall of the mold. The puncture drive unit then drives the puncture mounting plate toward the vertical axis. The puncture needle penetrates the blastocyst without penetrating the blastocyst, and a vent hole is punctured on the surface of the blastocyst. The puncture drive unit then drives the puncture mounting plate to reset, completing the initial shaping and surface puncture of the blastocyst, preparing for the next vulcanization process to exhaust gas. After the puncture needles are fully extended, the outline formed by the needle tips of all puncture needles is the same shape as the outline of the inflated blastocyst and slightly smaller in size.

[0011] In another embodiment, each of the puncture drive units includes a first mounting plate fixed on the outer surface of the mold piece, a first telescopic member mounted on the first mounting plate and with a piston rod connected to the puncture mounting plate, and the first telescopic member pushes the puncture mounting plate toward the vertical axis.

[0012] In another embodiment, each of the puncture drive units also includes a first guide rod fixed on the outer surface of the mold half, and a first guide sleeve fixed on the puncture mounting plate and sleeved with the first guide rod. The first guide sleeve and the first guide rod cooperate to make the movement of the puncture needle more stable and prevent the puncture mounting plate from separating from the mold half.

[0013] In another embodiment, the mold closing 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 engaged 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 notch is provided on the base for the second telescopic member to connect with the first base and to make way for the connection, when the second telescopic member drives the first base to move, the cooperation of the driving gear, the first rack and the second rack can drive the second base and the first base to move in the opposite direction, thereby realizing the opening or closing of the mold flap.

[0014] In another embodiment, the mold closing mechanism includes a third telescopic member installed on one of the mold halves, a locking block installed on an adjacent mold halves and provided with a locking hole, and a locking pin connected to the third telescopic member. When the mold halves are spliced ​​together, the third telescopic member drives the locking pin to be inserted into the locking hole, and the axis of the locking hole is not parallel to the splicing direction of the mold halves.

[0015] In another embodiment, the mold closing mechanism further includes a guide block installed on the mold halves where the third telescopic member is located, and the locking pin is passed through the guide block. When the mold halves are spliced ​​together, the locking hole is aligned with the locking pin, and the third telescopic member drives the locking pin to be inserted into the locking hole, and the mold halves are spliced ​​and locked.

[0016] In another embodiment, 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 one-to-one to the locking blocks, the locking pins correspond one-to-one to the locking blocks, and the mold closing mechanism also includes a locking link, the locking pins on the same side of the same mold halves are rotatably connected to the same locking link, the third telescopic part is connected to each of the locking pins through the locking link, and when the third telescopic part is moved, the locking pin corresponding to the third telescopic part moves synchronously with the third telescopic part.

[0017] In another embodiment, 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 an inflation and discharge hole connected to its circumferential surface is opened on the lower end surface of the vertical shaft, and an air source is connected to the inflation and discharge hole.

[0018] In another embodiment, the puncture hole on each mold flap is parallel to the moving direction of the mold flap where it is located. At this time, the stroke of the puncture needles at the two side positions is the same as the stroke of the puncture needle at the middle position, but the puncture needles at the two side positions do not penetrate the blastocyst along the radial direction of the blastocyst, so the depth of their penetration into the blastocyst is less than the depth of the puncture needle at the middle position; or the axis of each puncture hole is perpendicular and passes through the axis of the vertical axis, and the puncture needle is elastic in its radial direction, and the puncture mounting plate can be arc-shaped or flat-plate-shaped to match the inflated blastocyst. When the puncture mounting plate is flat and the axis of the puncture hole passes through the axis of the vertical axis, the translational puncture mounting plate drives the puncture needle to move in the puncture hole, and the puncture needles at the two side positions are deformed as guided by the puncture hole. When the puncture needle is inserted out, the axis of the front end of the puncture needle will also pass through the axis of the vertical axis. This puncture method can make the puncture depth more consistent.

[0019] In another embodiment, 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.

[0020] In another embodiment, the first support rod is L-shaped, and the mold closing mechanism also 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 third guide rail corresponding thereto, and each of the third guide rails corresponds one to one to each mold flap, and each mold flap is slidably connected to the third guide rail corresponding thereto; the puncture drive unit also includes a first elastic member which is sleeved on the puncture needle and is used to enable the puncture needle to always move from the mold flap 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 flap is not less than the friction force of the mold flap on the third guide rail. When the blastocyst needs to be expanded, the mold The mold is in the open position, first securing the blastocyst to the expansion mechanism. The fourth telescopic member then pushes the puncture mounting plate, causing the puncture needle to push the compression member, which in turn pushes the mold petals toward the vertical axis. Once the mold petals converge, the mold is closed, and the expansion sac inflates under the action of the air pump, forcing the blastocyst to adhere to the inner wall of the mold. The fourth telescopic member then overcomes the elastic force of the first elastic member and pushes the puncture mounting plate further toward the vertical axis. The puncture needle penetrates the blastocyst without penetrating it, creating a vent hole on its surface. The fourth telescopic member then retracts, driving the puncture mounting plate back. The puncture mounting plate, via the stoppers at each end of the second guide rod, returns the mold petals to their original position and initially shapes the blastocyst, preparing for the next vulcanization step. When the puncture needles are fully extended, the outline formed by the needle tips of all puncture needles is identical to, and slightly smaller than, the inflated outline of the blastocyst. Only a single movement of the fourth telescopic member is required to complete the closure of the mold petals and puncture of the blastocyst.

[0021] In another embodiment, a second guide sleeve is provided on the second guide rod to prevent the puncture mounting plate from completely separating from the mold half, one end of the second guide rod is fixed on the mold half, and the other end is passed through the second guide sleeve fixed on the puncture mounting plate.

[0022] In another embodiment, the mold closing mechanism also includes a first limit plate arranged along the outer peripheral surface of each mold flap, a first connecting rod connected between the first limit plate and the lower end of the mold flap, a gap is provided between the first limit 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 of the first inclined surface is closer to the axis of the vertical shaft than the lower end of the first inclined surface, 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.

[0023] In another embodiment, the puncture drive unit also includes a second 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. 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. When the compression sleeve descends, all of the puncture needles are pressed into the mold along with the puncture mounting plate by the compression sleeve; when the compression sleeve ascends, all of the puncture mounting plates are pushed to reset along with the puncture needles by the second elastic member.

[0024] In another embodiment, 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, and a radially inward pressure ring is provided on the inner side wall of the lower end of the compression sleeve, and a notch is opened on the pressure ring for avoiding the puncture mounting plate and the puncture needle, and the inner side wall of the pressure ring forms a third inclined surface matching the first inclined surface, and the inner ring of the upper end surface of the pressure ring matches the second inclined surface. When the pressure ring descends to the third inclined surface and presses on the first inclined surface, the third inclined surface presses the puncture needle into the mold along with the puncture mounting plate, and the pressure ring presses all the puncture needles into the mold from top to bottom to complete the puncture. At this time, the inner ring of the upper end surface of the pressure ring is located below all the second inclined surfaces. When the pressure ring ascends, the inner ring of the upper end surface of the pressure ring squeezes the second inclined surface to move the puncture mounting plate backward, thereby causing the puncture needle to exit the mold and complete the reset. This method can ensure that each puncture needle is reset.

[0025] In another embodiment, the puncture hole is an elliptical hole to prevent the puncture needle from rotating in the puncture hole.

[0026] In another embodiment, a sensor is embedded on the peripheral surface of the locking pin, and when the locking pin is inserted into the locking block, the sensor outputs a signal to confirm that the locking action is completed.

[0027] The beneficial effects of the present invention are as follows: the present invention completes the expansion molding by limiting the shape of the blastocyst after expansion through closed mold flaps. When the expansion molding is completed, the puncture mechanism punctures to form exhaust holes on the surface of the blastocyst. Two processes can be completed in one tooling, which greatly improves the processing efficiency of the blastocyst. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a three-dimensional diagram of the blastocyst expansion and puncture device in Example 1 (mold open state);

[0029] Figure 2 This is a front view of the blastocyst expansion and puncture device in Example 1 (mold open state);

[0030] Figure 3This is a top view of the blastocyst expansion and puncture device in Example 1 (mold open state);

[0031] Figure 4 is a cross-sectional view of the outward expansion mechanism in Example 1;

[0032] Figure 5 Schematic diagram of the structure of the mold, mold clamping mechanism and puncture mechanism when the mold is closed in Example 2 (partially exploded);

[0033] Figure 6 This is a front view of the mold, mold clamping mechanism, and piercing mechanism when the mold is closed in Example 2 (the six first support rods are not shown);

[0034] Figure 7 A top view of the mold, mold clamping mechanism, and piercing mechanism when the mold is closed in Example 2 (the six first support rods are not shown);

[0035] Figure 8 Schematic diagram of the structure of the mold, mold clamping mechanism and puncture mechanism when the mold is closed in Example 3;

[0036] Figure 9 Schematic diagram of the structure of the mold, mold clamping mechanism and puncture mechanism when the mold is closed in Example 3 (partially exploded);

[0037] Figure 10 for Figure 9 Magnified view at point A in the middle;

[0038] Figure 11 This is a schematic structural diagram of the pressure ring in Example 4;

[0039] Figure 12 for Figure 11 Partial view at point B in the middle. DETAILED DESCRIPTION

[0040] The present invention is described in detail below with reference to the embodiments shown in the accompanying drawings:

[0041] Example 1, as Figure 1 As shown, the blastocyst expansion and puncture device includes: a base 9, an outward expansion mechanism 8, a mold 3, a mold closing mechanism 2 and a puncture mechanism 1.

[0042] like Figure 4 As shown, the expansion mechanism 8 is mounted on the base 9, and the expansion mechanism 8 includes a vertical shaft 81 mounted on the base 9, and an inflatable expansion bag 82 wrapped around the vertical shaft 81, and the expansion bag 82 is cylindrical; Figure 1-3As shown, the mold 3 includes several mold halves 31. The mold 3 has a closed state and an open state. When the mold 3 is in the closed state, all the mold halves 31 are pieced together to form a cylindrical shape and are sleeved on the outward expansion mechanism 8. When the mold 3 is in the open state, all the mold halves 31 are separated and distributed around the outward expansion mechanism 8. The mold clamping mechanism 2 is installed on the base 9, and the mold clamping mechanism 2 is used to drive the mold 3 to open or close; the puncture mechanism 1 includes a puncture hole 11 provided on the mold flap 31, a plurality of puncture components 12, each puncture component 12 includes a puncture mounting plate 13, a plurality of puncture needles 14 installed on the puncture mounting plate 13 and pierced through the puncture hole 11, and a puncture drive part 15 for driving the puncture mounting plate 13 to move in the direction of exiting from the mold 3. The puncture mechanism 1 has at least two states of extension and retraction; when the puncture mechanism 1 is in the extended state, the needle head of the puncture needle 14 is partially located in the mold 3, and when the puncture mechanism 1 is in the retracted state, the needle head of the puncture needle 14 is retracted in the puncture hole 11 or exits the mold flap 31; the puncture hole 11 on each mold flap 31 is parallel to the moving direction of the mold flap 31 where it is located. At this time, the puncture holes 11 on both sides are parallel to the moving direction of the mold flap 31 where it is located. The stroke of the needle 14 is the same as that of the puncture needle 14 in the middle position, but the puncture needles 14 at the two side positions do not penetrate the blastocyst along the radial direction of the blastocyst, so the depth of their penetration into the blastocyst is less than the depth of the puncture needle 14 at the middle position. In this embodiment, the axis of each puncture hole 11 is perpendicular and passes through the axis of the vertical shaft 81. The puncture needle 14 is elastic in its radial direction. The puncture mounting plate can be arc-shaped or flat to match the inflated blastocyst. When the puncture mounting plate is flat and the axis of the puncture hole 11 passes through the axis of the vertical shaft 81, the translational 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 as guided by the puncture hole 11. When the puncture needle 14 passes 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.

[0043] Specifically, each puncture drive unit 15 includes a first mounting plate 16 fixed on the outer surface of the mold half 31, a first telescopic member 17 mounted on the first mounting plate 16 and with a piston rod connected to the puncture mounting plate 13, a first guide rod 18 fixed on the outer surface of the mold half 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 toward the vertical shaft 81. The first guide sleeve 19 and the first guide rod 18 cooperate to make the movement of the puncture needle 14 more stable and prevent the puncture mounting plate 13 from separating from the mold half 31.

[0044] The mold clamping mechanism 2 includes a first guide rail 21 and a second guide rail 22 mounted on the base 9 and arranged in parallel, a first base 23 and a second base 24 slidably connected to the first guide rail 21 and the second guide rail 22, a driving gear 25 rotatably connected to the base 9, a first rack 26 fixed to the first base 23 and a second rack 27 fixed to the second base 24, a second telescopic member 28 for driving the first base 23 to move, a top mounting block 2110 fixed to the side wall of one of the mold halves 31, a third telescopic member 29 fixed to the top mounting block 2110 and located above the mold halves 31, and a third telescopic member 29 mounted on the adjacent The locking block 20 with a locking hole 210 is provided on the mold flap 31, a locking pin 211 connected to the third telescopic member 29, a guide block 212 installed on the mold flap 31 where the third telescopic member 29 is located, a locking connecting rod 213, and a locking mounting block 214 connected to the piston rod of the third telescopic member 29. The locking connecting rod 213 is connected to each locking pin 211, and the locking mounting block 214 is connected to the upper end of the locking connecting rod 213. There are multiple locking blocks 20, at least two of which are arranged on the mold flap 31 in an upper and lower position. 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 is passed through On the guide block 212, the locking pin 211 on the same side of the same mold flap 31 is rotatably connected to the same locking link 213; the first rack 26 and the second rack 27 are respectively arranged on both sides of the driving gear 25 and are 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 the upper and lower connecting blocks 92, and the base 9 is provided with a first notch 91 for connecting the second telescopic member 28 to the first base 23 and making way for the upper and lower connecting blocks 92, the second telescopic member 2 8 drives the first base 23 to move, and 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 in the opposite direction of the first base 23, thereby realizing the opening or closing of the mold flap 31; when the mold flap 31 is spliced, 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, and the axis of the locking hole 210 is not parallel to the splicing direction of the mold flap 31, and is preferably vertical. At this time, the mold flap 31 is locked; a sensor is embedded on the peripheral 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.

[0045] The outward expansion mechanism 8 also 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 bag 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 bag 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, and an air charging and discharging hole 85 connected to its peripheral surface is opened on the lower end surface of the vertical shaft 81, and an air source is connected to the air charging and discharging hole 85.

[0046] First, the blastocyst is placed on the expansion sac 82. 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 toward each other through the cooperation of the driving gear 25, the first rack 26 and the second rack 27, so that the mold flap 31 is closed. Then the third telescopic member 29 drives the locking pin 211 to insert the locking hole 210, and the mold flap 31 is assembled and locked; the expansion sac 82 is inflated under the action of the air pump, so that the blastocyst is attached to the inner wall of the mold 3. Then the first telescopic member 17 drives the puncture mounting plate 13 to move toward the vertical axis 81. After the puncture needle 14 is fully extended, the needle tips of all puncture needles 14 constitute The outline of the blastocyst is the same as the outline of the blastocyst after it is inflated and is slightly smaller than the outline of the blastocyst after it is inflated. The puncture needle 14 penetrates the blastocyst but does not penetrate the blastocyst, and punctures an exhaust hole on the surface of the blastocyst. Then the first telescopic part 17 drives the puncture mounting plate 13 to reset, and the puncture needle 14 no longer extends on the inner wall of the mold 3, completing the preliminary shaping and surface puncture of the blastocyst, and preparing for the next vulcanization process to exhaust gas; finally, the third telescopic part 29 drives the locking pin 211 to exit the locking hole 210, the mold flap 31 is unlocked, and the second telescopic part 28 drives the first base 23 to retract, and the first base 23 and the second base 24 move away from each other, thereby realizing the opening of the mold flap 31.

[0047] In the second embodiment, the blastocyst expansion and puncture device includes: a base 9, an outward expansion mechanism 8, a mold 3, a mold clamping mechanism 2, and a puncture mechanism 1. The difference between this embodiment and the first embodiment lies in the mold 3, the mold clamping mechanism 2 and the puncture mechanism 1.

[0048] like Figure 5-7As shown, the outward expansion mechanism 8 is installed on the base 9, and the outward expansion mechanism 8 includes a vertical shaft 81 installed on the base 9, and an expansion bag 82 wrapped around the vertical shaft 81 and inflatable, and the expansion bag 82 is cylindrical; the mold 3 includes a plurality of mold halves 31, and the mold 3 has a closed state and an open state. When the mold 3 is in the closed state, all the mold halves 31 are pieced together to form a cylindrical shape and are sleeved on the outward expansion mechanism 8. When the mold 3 is in the open state, all the mold halves 31 are separated and distributed around the outward expansion mechanism 8. The mold clamping mechanism 2 is installed on the base 9, and the mold clamping mechanism 2 is used to drive the mold 3 to open or close; the puncture mechanism 1 includes a puncture hole 11 provided on the mold flap 31, a plurality of puncture components 12, each puncture component 12 includes a puncture mounting plate 13, a plurality of puncture needles 14 installed on the puncture mounting plate 13 and pierced through the puncture hole 11, and a puncture drive part 15 for driving the puncture mounting plate 13 toward the mold 3 and withdrawing from the mold 3. The puncture mechanism 1 has at least two states of extension and retraction; when the puncture mechanism 1 is in the extended state, the needle head of the puncture needle 14 is partially located in the mold 3, and when the puncture mechanism 1 is in the retracted state, the needle head of the puncture needle 14 is retracted into the puncture hole 11 or withdraws from the mold flap 31; the puncture hole 11 on each mold flap 31 is parallel to the moving direction of the mold flap 31 where it is located. At this time, the movement of the puncture needles 14 on both sides The stroke of the puncture needle 14 is the same as that of the middle position, but the puncture needles 14 at the two side positions do not penetrate the blastocyst along the radial direction of the blastocyst, so the depth of their penetration into the blastocyst is less than the depth of the puncture needle 14 at the middle position. In this embodiment, the axis of each puncture hole 11 is perpendicular and passes through the axis of the vertical shaft 81. The puncture needle 14 is elastic in its radial direction, and the puncture mounting plate 13 can be an arc or flat plate that matches the inflated blastocyst. When the puncture mounting plate 13 is flat 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 needle 14 to move in the puncture hole 11, and the puncture needles 14 at the two side positions are deformed as guided by the puncture hole 11. When the puncture needle 14 passes 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.

[0049] The mold clamping mechanism 2 also includes a plurality of third guide rails 223 distributed around the vertical shaft 81 in a divergent manner with the axis of the vertical shaft 81 as the center line, a fourth telescopic member 224 fixed on the base 9 and telescopic in a direction toward 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, and the mold closing mechanism 2 also includes a second guide rod 216 connected between the mold half 31 and the puncture mounting plate 13 so that the puncture mounting plate 13 slides relative to the mold half 31 along the corresponding third guide rail 223. Each third guide rail 223 corresponds to each mold half 31 one by one, and each mold half 31 is slidably connected to the corresponding third guide rail 223; the puncture drive unit 15 also includes a first elastic member 217 that is sleeved on the puncture needle 14 and is used to enable the puncture needle 14 to always move from the mold half 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, so that the force required to compress all the first elastic members 217 on the same mold half 31 is not less than the friction force of the mold half 31 on the third guide rail 223. The second guide rod 216 is provided with a second guide sleeve 218 to prevent the puncture mounting plate 13 from completely separating from the mold half 31. One end of the second guide rod 216 is fixed on the mold half 31, and the other end is passed through the second guide sleeve 218 fixed on the puncture mounting plate 13.

[0050] The outward expansion mechanism 8 also 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 bag 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 bag 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, and an air charging and discharging hole 85 connected to its peripheral surface is opened on the lower end surface of the vertical shaft 81, and an air source is connected to the air charging and discharging hole 85.

[0051] When the blastocyst needs to be expanded, the mold 3 is in the open state. The blastocyst is first fixed on the outward expansion mechanism 8. Then the fourth telescopic member 224 pushes the puncture mounting plate 13, and the puncture needle 14 pushes the compression member, which pushes the mold flap 31 toward the vertical axis 81. When the mold flap 31 is gathered, the mold 3 is in the closed state, and the expansion bag 82 is inflated under the action of the air pump, so that the blastocyst is attached to the inner 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 to move toward the vertical axis 81. The puncture needle 14 pierces the blastocyst but does not penetrate the blastocyst, and pierces an exhaust hole on the surface of the blastocyst. Then the fourth telescopic member 224 retracts, driving the puncture mounting plate 13 to retract. The puncture mounting plate 13 brings the mold flap 31 back through the limiting structure at both ends of the second guide rod 216, completing the reset and the preliminary shaping of the blastocyst, and preparing to exhaust gas for the next vulcanization process. After the puncture needle 14 is fully extended, the outline formed by the needle tips of all puncture needles 14 is the same as the outline of the blastocyst after expansion and is slightly smaller than the outline of the blastocyst after expansion. Only one movement of the fourth telescopic part 224 is needed to complete the closing of the mold flap 31 and the puncture of the blastocyst.

[0052] In the third embodiment, the blastocyst expansion and puncture device includes: a base 9, an outward expansion mechanism 8, a mold 3, a mold clamping mechanism 2, and a puncture mechanism 1. The difference between this embodiment and the first embodiment lies in the mold 3, the mold clamping mechanism 2 and the puncture mechanism 1.

[0053] like Figure 8-10As shown, the outward expansion mechanism 8 is installed on the base 9, and the outward expansion mechanism 8 includes a vertical shaft 81 installed on the base 9, and an expansion bag 82 wrapped around the vertical shaft 81 and inflatable, and the expansion bag 82 is cylindrical; the mold 3 includes a plurality of mold halves 31, and the mold 3 has a closed state and an open state. When the mold 3 is in the closed state, all the mold halves 31 are pieced together to form a cylindrical shape and are sleeved on the outward expansion mechanism 8. When the mold 3 is in the open state, all the mold halves 31 are separated and distributed around the outward expansion mechanism 8. The mold clamping mechanism 2 is mounted on the base 9 and is used to drive the mold 3 to open or close; the puncture mechanism 1 includes a puncture hole 11 provided on the mold flap 31, a plurality of puncture components 12, each puncture component 12 includes a puncture mounting plate 13, a plurality of puncture needles 14 mounted on the puncture mounting plate 13 and piercing the puncture hole 11, and a puncture driving part 15 for driving the puncture mounting plate 13 toward the mold 3 and withdrawing from the mold 3. The puncture mechanism 1 has at least two states: extended and retracted; when the puncture mechanism 1 is in the extended state, the needle head of the puncture needle 14 has a portion located in the mold In the tool 3, when the puncture mechanism 1 is in the retracted state, the needle head of the puncture needle 14 is retracted into the puncture hole 11 or exits the mold flap 31; the puncture hole 11 on each mold flap 31 is parallel to the moving direction of the mold flap 31 where it is located. At this time, the stroke of the puncture needle 14 at the two side positions is the same as the stroke of the puncture needle 14 at the middle position, but the puncture needle 14 at the two side positions does not penetrate the blastocyst along the radial direction of the blastocyst, so the depth of its penetration into the blastocyst is less than the depth of the puncture needle 14 at the middle position; in this embodiment, the axis of each puncture hole 11 is perpendicular and passes through the axis of the vertical shaft 81.

[0054] The mold clamping mechanism 2 also includes a plurality of fourth guide rails 222 distributed around the vertical shaft 81 in a divergent manner with the axis of the vertical shaft 81 as the center line, a first limit plate 219 arranged along the outer peripheral surface of each mold flap 31, a first connecting rod 220 connected between the first limit plate 219 and the lower end of the mold flap 31, and a sixth telescopic member 221 fixed between the base 9 and the first limit plate 219 for driving the first limit plate 219 and thereby driving the mold flap 31 to move. There is a gap between the first limit plate 219 and the mold flap 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 of the first inclined surface 131 is closer to the axis of the vertical shaft 81 than the lower end of the first inclined surface 131. The puncture drive unit 1 The mold 5 also 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 mounted on the puncture needle 14 and used to ensure that the puncture needle 14 always moves from the mold half 31 where it is located toward the puncture mounting plate 13 where it is located. The second elastic member 111 is located within the puncture hole 11. When the mold 3 is closed and the second elastic member 111 is in its natural state, all first inclined surfaces 131 are in the path of the compression sleeve 110 during its downward movement. When the compression sleeve 110 descends, all puncture needles 14 are pressed into the mold 3 along with the puncture mounting plate 13 by the compression sleeve 110. When the compression sleeve 110 ascends, all puncture mounting plates 13 are pushed back into place along with the puncture needles 14 by the second elastic member 111. The elliptical shape of the puncture hole 11 prevents the puncture needle 14 from rotating within the puncture hole 11.

[0055] The outward expansion mechanism 8 also 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 bag 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 bag 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 connected to its circumferential surface is provided on the lower end surface of the vertical shaft 81, and an air source is connected to the air charging and discharging hole 85.

[0056] First, the blastocyst is placed on the expansion sac 82, and then the sixth telescopic member 221 drives the first limit plate 219 and then drives the mold flap 31 to move on the fourth guide rail 222, so that the mold 3 is assembled, and the expansion sac 82 is inflated under the action of the air pump, so that the blastocyst is attached to the inner wall of the mold 3, and then the fifth telescopic member 10 is extended to drive the compression sleeve 110 downward, and the compression sleeve 110 is inserted into the gap between the first limit plate 219 and the mold flap 31. The compression sleeve 110 pushes the puncture mounting plate 13, and all puncture needles 14 are pressed into the mold 3 along with the puncture mounting plate 13 by the compression sleeve 110 to complete the puncture action; then the fifth telescopic member 10 retracts, and when the compression sleeve 110 goes up, all puncture mounting plates 13 are pushed back to their original position along with the puncture needles 14 by the second elastic member 111.

[0057] Embodiment 4: This embodiment differs from Embodiment 3 in the structure of the compression sleeve 110 and the puncture mounting plate 13 .

[0058] like Figure 11-12 As 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. A radially inward pressure ring 112 is provided on the inner side wall of the lower end of the compression sleeve 110. The pressure ring 112 is provided with a second notch 114 for avoiding the puncture mounting plate 13 and the puncture needle 14. The inner side wall of the pressure ring 112 forms a third inclined surface 113 that matches the first inclined surface 131. The inner circle of the upper end surface of the pressure ring 112 matches the second inclined surface 132. When the third bevel 113 descends and presses on the first bevel 131, the third bevel 113 presses the puncture needle 14 along with the puncture mounting plate 13 into the mold 3. The pressure 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 circle of the upper end surface of the pressure ring 112 is located below all the second bevels 132. When the pressure ring 112 ascends, the inner circle of the upper end surface of the pressure ring 112 squeezes the second bevel 132 to move the puncture mounting plate 13 backward, thereby allowing the puncture needle 14 to exit the mold 3 and complete the reset. This method can ensure that each puncture needle 14 is completely reset. The elliptical hole 11 can prevent the puncture needle 14 from rotating in the puncture hole 11.

[0059] In the above embodiment, 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.

[0060] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those skilled in the art to understand the present invention and implement it accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made in accordance with the spirit of the present invention are intended to be included within the scope of protection of the present invention.

Claims

1. A blastocyst expansion and puncture device, comprising: base; an external expansion mechanism mounted on the base, the external expansion mechanism comprising a vertical shaft mounted 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 cylindrical shape and sleeved on the expansion mechanism. When the mold is in the open state, all the mold halves are separated and distributed around the 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 further comprises: A puncture mechanism comprising a puncture hole provided on the mold half, a plurality of puncture assemblies, each of the puncture assemblies comprising a puncture mounting plate, a plurality of puncture needles mounted on the puncture mounting plate and piercing the puncture hole, and a puncture drive unit for driving the puncture mounting plate to move in a direction toward and away from the mold, the puncture mechanism having at least two states: extended and retracted; when the puncture mechanism is in the extended state, the needle head of the puncture needle is partially located within 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 withdrawn from the mold half; The axis of each puncture hole is perpendicular to and passes through the axis of the vertical shaft.

2. The blastocyst expansion and puncture device according to claim 1, characterized in that: Each of the puncture drive parts includes a first mounting plate fixed on the outer surface of the mold half, a first telescopic member mounted on the first mounting plate and having a piston rod connected to the puncture mounting plate, and the first telescopic member pushes the puncture 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 puncture drive parts further includes a first guide rod fixed on the outer surface of the mold half, and a first guide sleeve fixed on the puncture mounting plate and sleeved with the first guide rod.

4. The blastocyst expansion and puncture device according to claim 1, characterized in that: The mold 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 engaged 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 to 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 includes 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 further includes a guide block mounted on the mold flap where the third telescopic member is located, and the locking pin is passed 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 one-to-one to the locking blocks, and the locking pins correspond one-to-one to the locking blocks. The mold closing mechanism also includes a locking link, and the locking pins on the same side of the same mold halves are rotatably connected to the same locking link, and the third telescopic member is connected to each of the locking pins through the locking link.

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 an inflation and deflation hole connected to its circumferential surface is opened on the lower end surface of the vertical shaft.

9. The blastocyst expansion and puncture device according to claim 1, characterized in that: The puncture needle has elasticity 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 so that the puncture mounting plate slides 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 one by one, 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. 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 puncture 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 passed through the second guide sleeve fixed to the puncture 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, 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 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. 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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