CN214872389U - Blood taking needle protective sheath core pulling mechanism and core pulling mold - Google Patents
Blood taking needle protective sheath core pulling mechanism and core pulling mold Download PDFInfo
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- CN214872389U CN214872389U CN202120318762.1U CN202120318762U CN214872389U CN 214872389 U CN214872389 U CN 214872389U CN 202120318762 U CN202120318762 U CN 202120318762U CN 214872389 U CN214872389 U CN 214872389U
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Abstract
The utility model provides a blood taking needle protective sheath mechanism of loosing core and loose core mould, the utility model relates to a blood taking needle protective sheath mechanism of loosing core for the pull core of moulding plastics, including drive mechanism and cylinder, the cylinder includes cylinder body and cylinder connecting rod, and the core of moulding plastics includes first fixed part and core bar portion, first fixed part and drive mechanism fixed connection, cylinder connecting rod and drive mechanism fixed connection, when cylinder connecting rod pulling drive mechanism moved, drive mechanism can drive the core motion of moulding plastics, takes the certain distance out from the die cavity. Adopt its mechanism, under cylinder, drive mechanism and the cooperation of the core of moulding plastics, before movable mould mechanism and cover half mechanism open, will mould plastics the core and take out certain distance for after movable mould mechanism and cover half mechanism open, the difficult fracture that takes place of the wall thickness of injection moulding article for 0.25mm department improves the yields of moulding a goods, simplifies the mould structure, reduction in production cost, improvement production efficiency.
Description
Technical Field
The utility model belongs to the technical field of the technique of moulding plastics and specifically relates to a blood taking needle protective sheath mechanism of loosing core still relates to one kind and contains the loose core mould of blood taking needle protective sheath mechanism of loosing core.
Background
With the development of the medical industry, the demand for thin-wall medical plastic products is gradually increased, but the yield and the cost of the thin-wall medical plastic products are difficult to control all the time, the plastic products are ejected out of a movable mold core and are demolded through a push plate and a slide block in the existing mold, and because the holding force of the plastic products to the movable mold core is larger, the position of the thin-wall part with the thickness of 0.25mm of the plastic product is easy to deform and break in the ejection process, so that the plastic products are unqualified, the mold has a complex structure and larger thickness and size, and needs a larger-size injection molding machine for injection molding, so the production cost is high, and the production efficiency is low.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a blood taking needle protective sheath mechanism of loosing core still provides the loose core mould that contains this mechanism.
The utility model relates to a blood taking needle protective sleeve core pulling mechanism, which is used for pulling an injection molding core and comprises a transmission mechanism and an air cylinder, wherein the air cylinder comprises an air cylinder body and an air cylinder connecting rod, the injection molding core comprises a first fixed part and a core bar part, the first fixed part is fixedly connected with the transmission mechanism, the air cylinder connecting rod is fixedly connected with the transmission mechanism,
when the cylinder connecting rod pulls the transmission mechanism to move, the transmission mechanism can drive the injection mold core to move and draw out a certain distance from the mold cavity.
Adopt its mechanism, under cylinder, drive mechanism and the cooperation of mould core of moulding plastics for the mould core of moulding plastics is automatic to be taken certain distance out from the die cavity, because before movable mould mechanism and cover half mechanism are opened, takes certain distance out with the mould core of moulding plastics, makes after movable mould mechanism and cover half mechanism are opened, and the thin wall thickness of injection moulding article is the difficult emergence fracture of 0.25mm department, improves the yields of moulding a goods, simplifies the mould structure, reduction in production cost improves production efficiency.
Preferably, the transmission mechanism comprises a pressing block, a clamping block and a sliding block, the cylinder connecting rod is arranged below the pressing block and connected with the pressing block, the clamping block is arranged between the pressing block and the sliding block, one side of the pressing block is provided with a first inclined plane, one side of the sliding block facing the first inclined plane is provided with an inclined plane guide groove, the other side of the sliding block is fixedly connected with the first fixing part, the clamping block comprises a supporting part and a clamping part, the supporting part is fixedly connected with the first inclined plane, the side edge of the clamping part is provided with a clamping lug, the clamping lug is arranged in the inclined plane guide groove and is in sliding connection with the inclined plane guide groove,
when the cylinder connecting rod pulls the pressing block downwards, the pressing block and the clamping block move downwards together, and the sliding block drives the injection molding core to move towards the vertical direction of the movement of the pressing block under the matching of the clamping lug and the inclined plane guide groove.
Preferably, the injection molding core is internally provided with a cavity for accommodating the core tube part, the sliding block is internally provided with a cooling liquid flow channel, the cooling core tube is internally provided with a channel, the cooling liquid flow channel is communicated with the channel, the second fixing part is fixedly connected with the sliding block, and one side of the sliding block is provided with a cooling liquid feeding hole.
The cooling core pipe is arranged in the injection mold core, and cooling liquid flows into the channel from the cooling flow channel, so that the temperature of the injection mold core is reduced in the injection molding process of the injection mold core, the service life of the injection mold core is prolonged, and the injection molding cycle can be shortened to a certain extent.
Preferably, the transmission mechanism is provided with at least one injection mold core at intervals.
A plurality of injection molding cores are arranged on the transmission mechanism at intervals, so that the production efficiency can be effectively improved.
Preferably, still include the fixed block, the fixed block setting is kept away from fixture block one side at the slider and with slider fixed connection, first fixed part pass the fixed block and with fixed block fixed connection.
And the injection mold core and the cooling core pipe are respectively fixed in the fixing block and the sliding block, so that the processing cost is reduced.
In a second aspect, the utility model also provides a loose core mould containing the blood taking needle protective sleeve loose core mechanism, further comprises a movable mould mechanism and a fixed mould mechanism, the fixed mould mechanism comprises a fixed mould fixing plate and a fixed mould cavity, the fixed mould cavity is fixedly connected with the fixed mould fixing plate, the movable mould mechanism comprises a push plate, a movable mould cavity, an ejection mechanism and a movable mould fixing plate, the movable mould cavity is fixedly connected with the movable mould plate, the fixed mould mechanism is arranged right above the movable mould mechanism and is sleeved with the movable mould mechanism, the movable mould cavity is in contact connection with the fixed mould cavity, a core bar part of an injection mould core is arranged between the movable mould cavity and the fixed mould cavity, the movable mould plate is provided with a push plate mounting groove, the push plate is arranged in the push plate mounting groove and is sleeved with the movable mould plate, the ejection mechanism is arranged below the movable mould plate, the movable mould fixing plate is arranged below the ejection mechanism, the push plate and the movable mould plate are provided with a mounting hole for the loose core mechanism to penetrate, the core-pulling mechanism penetrates into the mounting hole, a transmission mechanism of the core-pulling mechanism is arranged in the push plate, and an air cylinder of the core-pulling mechanism is arranged in the ejection mechanism.
Preferably, the ejection mechanism comprises an ejector pin, a first ejector pin plate, an ejector pin supporting plate, a second ejector pin plate, an ejector pin, a height-equal screw and a push rod, the first ejector pin plate and the ejector pin supporting plate are provided with cylinder through holes, the second ejector pin plate is provided with a groove, a cylinder penetrates through the cylinder through holes in the first ejector pin plate and the ejector pin supporting plate and is arranged in the groove, ejector pin channels are respectively arranged in the movable template and the movable model cavity, one end of the ejector pin is arranged in the first ejector pin plate, the other end of the ejector pin is arranged in the ejector pin channels in the movable template and the movable model cavity, the ejector pin supporting plate is fixedly connected with the first ejector pin plate, the second ejector pin plate is provided with an ejector pin through hole, the ejector pin penetrates through holes in the second ejector pin plate and is fixedly connected with the ejector pin supporting plate, the movable template, the first ejector pin plate and the ejector pin supporting plate are respectively provided with push rod through holes, one end of the push rod is fixedly connected with the second ejector pin plate, and the other end of the push rod penetrates through the movable template, The push rod through holes on the first thimble plate and the thimble supporting plate are fixedly connected with the push plate, the equal-height screws comprise a connecting part and an abutting part, the thimble supporting plate and the second thimble plate are respectively provided with a connecting through hole, the connecting part passes through the connecting through holes on the thimble supporting plate and the second thimble plate and is fixedly connected with the first thimble plate,
when first thimble board rebound extreme distance, the butt portion and the second thimble board butt of equal altitude screw, when first thimble board continues rebound, butt portion drives second thimble board rebound.
Preferably, the core-pulling mechanisms are arranged in two groups, and the two groups of core-pulling mechanisms are arranged in the push plate side by side.
Preferably, the injection molding mold further comprises a guide block, the guide block is arranged at one end, facing the movable mold cavity and the fixed mold cavity, of the push plate and is fixedly connected with the push plate, a second guide sliding groove matched with the injection molding core is formed in the guide block, and the core rod part penetrates through the sliding groove and is arranged between the movable mold cavity and the fixed mold cavity.
Preferably, a compressed air inlet channel is arranged in the push plate, a compressed air inlet pipe communicated with the compressed air inlet channel is arranged in the guide block, and the compressed air inlet pipe is communicated with the second guide sliding groove.
The utility model discloses loose core mould is provided with as above a blood taking needle protective sheath mechanism of loosing core, its mechanism refers to above-mentioned explanation. And because loose core mould includes above-mentioned mechanism, the event also can produce the technological effect that above-mentioned mechanism produced, refer to above-mentioned description can, the utility model discloses no longer describe herein.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a schematic view of the whole structure of an embodiment 1 of the core pulling mechanism of the blood taking needle protecting sleeve of the present invention;
fig. 2 is an exploded schematic view of embodiment 1 of the present invention;
FIG. 3 is a schematic view of the core-pulling mold of the present invention;
FIG. 4 is a cross-sectional view of the core back mold of FIG. 3 taken along the line A-A;
FIG. 5 is a partially enlarged view of FIG. 4;
FIG. 6 is a schematic structural view of the movable mold mechanism of the core-pulling mold of the present invention;
FIG. 7 is a schematic structural view of the core-pulling mold fixing mechanism of the present invention;
FIG. 8 is a cross-sectional view of the core back mold of FIG. 3 taken along the direction B-B;
FIG. 9 is a cross-sectional view of the core back mold of FIG. 3 in a direction C-C;
FIG. 10 is a schematic structural view of the core pulling mold during core pulling;
FIG. 11 is a partial cross-sectional view of the core back mold of FIG. 3 in a direction D-D;
reference numerals: 1. a core-pulling mechanism; 11. a transmission mechanism; 12. injection molding a mold core; 13. a cylinder; 131. a cylinder body; 132. a cylinder connecting rod; 121. a first fixed part; 122. a core rod portion; 111. briquetting; 112. a clamping block; 113. a slider; 1111. a first inclined plane; 1131. a bevel guide groove; 1121. a support portion; 1122. a clamping part; 11221. clamping the lug; 14. cooling the core pipe; 141. a second fixed part; 142. a core pipe portion; 123. a cavity; 143. a channel; 1132. A coolant feed port; 15. a fixed block; 2. a moving die mechanism; 3. a die fixing mechanism; 31. fixing a die fixing plate; 32. a die cavity is fixed; 33. a pouring gate insert; 34. injection molding a runner; 331. a submarine gate; 21. pushing the plate; 22. moving the template; 23. a movable model cavity; 24. a movable mold fixing plate; 221. a push plate mounting groove; 211. mounting holes; 25. a thimble; 26. a first ejector plate; 27. A thimble supporting plate; 28. a second ejector plate; 29. a top rod; 291. an equal-height screw; 292. a push rod; 261. a cylinder through hole; 281. a groove; 222. a thimble passage; 282. a through hole of the mandril; 223. A push rod through hole; 2911. a connecting portion; 2912. an abutting portion; 271. a connecting through hole; 293. a guide block; 2931. a second guide chute; 212. a compressed air intake passage; 2932. a compressed air inlet pipe; 4. and (5) molding the product.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, 2 and 4, embodiment 1 is a core pulling mechanism for a lancet protection sleeve, the core pulling mechanism 1 is used for pulling an injection core 12, and comprises a transmission mechanism 11, a fixed block 15, a cooling core tube 14 and a cylinder 13, the cylinder 13 comprises a cylinder body 131 and a cylinder connecting rod 132, the injection core 12 comprises a first fixed portion 121 and a core rod portion 122, the cooling core tube 14 comprises a second fixed portion 141 and a core tube portion 142, and a cavity 123 for accommodating the core tube portion 142 is arranged in the injection core 12.
The transmission mechanism 11 includes a pressing block 111, a clamping block 112 and a sliding block 113, the air cylinder connecting rod 132 is disposed below the pressing block 111 and connected to the pressing block 111, the clamping block 112 is disposed between the pressing block 111 and the sliding block 113, one side of the pressing block 111 is provided with a first inclined plane 1111, one side of the sliding block 113 facing the first inclined plane 1111 is provided with an inclined plane guide groove 1131, the other side of the sliding block 113 is provided with a fixing block 15 and the sliding block 113 is fixedly connected to the fixing block 15, the clamping block 112 includes a supporting portion 1121 and a clamping portion 1122, the supporting portion 1121 is fixedly connected to the first inclined plane 1111, a side of the clamping portion 1122 is provided with a clamping lug 11221, and the clamping lug 11221 is disposed in the inclined plane guide groove 1131 and slidably connected to the inclined plane guide groove 1131.
A cooling liquid flow channel is arranged in the sliding block 113, a channel 143 is arranged in the cooling core tube 14, the cooling liquid flow channel is communicated with the channel 143, a cooling liquid feed opening 1132 is arranged on one side of the sliding block 113, a mounting hole of the injection molding core 15 is arranged on the fixed block 15, the first fixing part 121 is fixedly connected with the fixed block 15 through the mounting hole, the second fixing part 141 is fixedly connected with the sliding block 113, the core tube part 142 is arranged in the cavity 123 of the injection molding core rod 12, cooling liquid enters the cooling liquid flow channel and the channel 143 from the cooling liquid feed opening 1132, and the injection molding core 12 is cooled.
4 injection cores 12 are arranged on the fixed block 15 at intervals, 4 cooling core pipes 14 are also arranged, when the cylinder connecting rod 132 pulls the pressing block 111 downwards, the pressing block 111 and the clamping block 112 move downwards together, and under the matching of the clamping lugs 11221 and the inclined guide grooves 1131, the sliding block 113 drives the injection cores 12 to move towards the vertical direction of the movement of the pressing block 111, so that the injection cores 12 are drawn out from the injection products 4 for a certain distance, and the injection products 4 are not easy to break at the position of 0.25mm after the core pulling mold is opened at the movable mold mechanism 2 and the fixed mold mechanism 3.
As shown in fig. 3-11, the utility model also provides an embodiment of loose core mould, loose core mould includes movable mould mechanism 2 and cover half mechanism 3, cover half mechanism 3 includes cover half fixed plate 31 and cover half die cavity 32, cover half die cavity 32 and cover half fixed plate 31 fixed connection, movable mould mechanism 2 includes two sets of mechanisms 1 of loosing core, push pedal 21, guide block 293, movable mould board 22, movable mould chamber 23, ejection mechanism and movable mould fixed plate 24, movable mould chamber 23 is connected with movable mould board fixed 24, cover half mechanism 3 sets up directly over movable mould mechanism 2 and cup joints with movable mould mechanism 2, movable mould chamber 23 and cover half die cavity 32 contact are connected, form the die cavity of moulding plastics, the core bar portion 122 of the core 12 of moulding plastics sets up between movable mould chamber 23 and cover half die cavity 32.
The fixed mold cavity 32 and the movable mold cavity 23 both comprise an injection molding runner 34 and a product cavity, a gate insert 33 is arranged in the product cavity, a submarine gate 331 is arranged on one side of the gate insert 33, and the injection molding runner 34 is communicated with the product cavity through the submarine gate 331.
The core pulling mechanism comprises a movable template 22 and a movable template, wherein a push plate mounting groove 221 is formed in the movable template 22, a push plate 21 is arranged in the push plate mounting groove 221 and is sleeved with the movable template 22, an ejection mechanism is arranged below the movable template 22, a movable mold fixing plate 24 is arranged below the ejection mechanism, mounting holes 211 for two groups of core pulling mechanisms 1 to penetrate into are formed in the push plate 21 and the movable template 22, the two groups of core pulling mechanisms 1 are arranged side by side, the two groups of core pulling mechanisms 1 penetrate into the mounting holes 211 respectively, transmission mechanisms 11 of the two groups of core pulling mechanisms 1 are arranged in the push plate 21, and a cylinder 13 of the core pulling mechanism 1 is arranged in the ejection mechanism.
The ejector mechanism comprises an ejector pin 25, a first ejector pin plate 26, an ejector pin supporting plate 27, a second ejector pin plate 28, an ejector pin 29, an equal-height screw 291 and a push rod 292, wherein the first ejector pin plate 26 and the ejector pin supporting plate 27 are provided with cylinder through holes 261, the second ejector pin plate 28 is provided with a groove 281, a cylinder 13 passes through the cylinder through holes 261 on the first ejector pin plate 26 and the ejector pin supporting plate 27 and is arranged in the groove 281, an ejector pin channel 222 is respectively arranged in the movable mold plate 22 and the movable mold cavity 23, one end of the ejector pin 25 is arranged in the first ejector pin plate 26, the other end of the ejector pin 25 is arranged in the ejector pin channel 222 in the movable mold plate 22 and the movable mold cavity 23, the ejector pin channel 222 is communicated with the injection molding runner 34, the ejector pin supporting plate 27 is fixedly connected with the first ejector pin plate 26, the movable mold fixing plate 24 and the second ejector pin plate 28 are respectively provided with ejector pin through holes 282, one end of the ejector pin 29 is arranged in the ejector pin through hole 282 on the movable mold fixing plate 24, the other end of the ejector rod 29 passes through an ejector rod through hole 282 in the second ejector plate 28 and is fixedly connected with the ejector pin supporting plate 27.
The movable template 22, the first ejector plate 26 and the ejector retainer 27 are respectively provided with a push rod through hole 223, one end of the push rod 292 is fixedly connected with the second ejector plate 28, the other end of the push rod 292 penetrates through the push rod through holes 223 on the movable template 22, the first ejector plate 26 and the ejector supporting plate 27 to be fixedly connected with the push plate 21, the equal-height screw 291 comprises a connecting part 2911 and an abutting part 2912, the ejector supporting plate 27 and the second ejector plate 28 are respectively provided with a connecting through hole 271, the connecting part 2911 penetrates through the connecting through holes 271 on the ejector supporting plate 27 and the second ejector plate 28 to be fixedly connected with the first ejector plate 26,
when the first ejector plate 26 moves upward by a limited distance, the abutting portion 2912 of the equal-height screw 291 abuts against the second ejector plate 28, and when the first ejector plate 26 continues to move upward, the abutting portion 2912 drives the second ejector plate 28 to move upward.
The guide block 293 is arranged at one end of the push plate 21 facing the movable mold cavity 23 and the fixed mold cavity 32 and is fixedly connected with the push plate 21, a second guide sliding groove 2931 matched with the injection mold core 12 is arranged in the guide block 293, the core rod part 122 penetrates through the second guide sliding groove 2931 and is arranged between the movable mold cavity 23 and the fixed mold cavity 32, a compressed air inlet channel 212 is arranged in the push plate 21, a compressed air inlet pipe 2932 communicated with the compressed air inlet channel 212 is arranged in the guide block 293, the compressed air inlet pipe 2932 is communicated with the second guide sliding groove 2931, and compressed air is introduced to separate the plastic part product 4 on the injection mold core 12 from the injection mold core 12.
The working principle of the loose core mould of the loose core mechanism of the blood taking needle protective sleeve is as follows: after the mold finishes injection molding, before the movable mold mechanism 2 and the fixed mold mechanism 3 are opened, a first-stage core pulling step is started, fig. 5 is a schematic diagram of a partially enlarged structure of fig. 4 when the core pulling mold performs the first-stage core pulling step, the air cylinder 13 works first, the air cylinder connecting rod 132 drives the press block 111 to move downwards for a distance of S1, the press block 111 drives the fixture block 112 to move together, and under the matching effect of the fixture block 112 and the inclined guide groove 1131, the slider 113 drives the injection mold core 12 to move towards the vertical direction of the movement of the press block 111, so that the injection mold core 12 is pulled out from the injection molding product 4 for a distance of S2 without being completely separated.
After the injection core 12 is pulled out of the injection product 4 by the distance of S2, the fixed mold mechanism 3 and the movable mold mechanism 2 are opened, the movable mold mechanism 2 moves downward, and the plastic product 4 is separated from the fixed mold cavity 3.
Next, the first-stage ejection step is started, and fig. 8 is a cross-sectional view of the core back mold during the first-stage core back step, in which a plunger on the injection molding machine pushes a plunger 29 on the core back mold to move S3 distance, and the plunger 29 moves upward S3 distance together with the cooperation of the first ejector plate 26, the ejector retainer plate 27 and the ejector 25, so that the ejector 25 penetrates out of the ejector channel 222, and ejects the waste in the injection runner 34 out of the movable mold cavity 23, during which process, the second ejector retainer plate 28 remains stationary, and the plastic part product 4 remains in the movable mold cavity 23.
After the ejector rod 29 is ejected upwards by the distance of S3, the abutting portion 2912 of the equal-height screw 291 abuts against the second ejector plate 28, and then the second-stage ejection step is started, fig. 9 is a cross-sectional view of the core-pulling mold during the second-stage ejection step, the ejector rod 29 continues to eject upwards, the equal-height screw 291 drives the second ejector plate 28 to move upwards by the distance of S4, because one end of the push rod 292 is fixedly connected with the second ejector plate 28, the other end of the push rod 292 is fixedly connected with the push plate 21, and the air cylinder 13 is arranged on the second ejector plate 28, the core-pulling mechanism 1 moves upwards by the distance of S4 together, and the injection mold core 12 drives the plastic product 4 to eject the movable mold cavity 23.
Since the plastic product 4 is still located at the injection core 12 and completely separated, fig. 11 is a partial cross-sectional view of the core-pulling mold after the second-stage ejection step, and then the second-stage core-pulling step is started, and fig. 10 is a cross-sectional view of the core-pulling mold after the second-stage core-pulling step is performed, at this moment, compressed air is injected from the compressed air inlet channel 212 in the push plate 21, and then enters the second guide chute 2931 from the compressed air inlet pipe 2932 and is blown out, so that the plastic product 4 is separated from the injection core 12, and finally core-pulling is completed.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a blood taking needle protective sheath mechanism of loosing core which characterized in that: the core-pulling mechanism is used for pulling the injection mold core and comprises a transmission mechanism and an air cylinder, the air cylinder comprises an air cylinder body and an air cylinder connecting rod, the injection mold core comprises a first fixing part and a core rod part, the first fixing part is fixedly connected with the transmission mechanism, the air cylinder connecting rod is fixedly connected with the transmission mechanism,
when the cylinder connecting rod pulls the transmission mechanism to move, the transmission mechanism can drive the injection mold core to move and draw out a certain distance from the mold cavity.
2. A blood lancet protective sheath core pulling mechanism according to claim 1, wherein: the transmission mechanism comprises a pressing block, a clamping block and a sliding block, the air cylinder connecting rod is arranged below the pressing block and connected with the pressing block, the clamping block is arranged between the pressing block and the sliding block, a first inclined plane is arranged on one side of the pressing block, an inclined plane guide groove is arranged on one side of the sliding block facing the first inclined plane, the other side of the sliding block is fixedly connected with the first fixing part, the clamping block comprises a supporting part and a clamping part, the supporting part is fixedly connected with the first inclined plane, a clamping lug is arranged on the side edge of the clamping part, the clamping lug is arranged in the inclined plane guide groove and is in sliding connection with the inclined plane guide groove,
when the cylinder connecting rod pulls the pressing block downwards, the pressing block and the clamping block move downwards together, and the sliding block drives the injection molding core to move towards the vertical direction of movement of the pressing block under the matching of the clamping lug and the inclined plane guide groove.
3. A blood lancet protective sheath core pulling mechanism according to claim 2, wherein: still include the cooling core pipe, the cooling core pipe includes second fixed part and core pipe portion, be provided with in the mould plastics core and hold the cavity of core pipe portion, be provided with the coolant liquid runner in the slider, be provided with the passageway in the cooling core pipe, the coolant liquid runner with the passageway intercommunication, the second fixed part with slider fixed connection, slider one side is provided with the coolant liquid feed inlet.
4. A blood lancet protective sheath core pulling mechanism according to claim 3, wherein: the transmission mechanism is provided with at least one injection mold core at intervals.
5. A blood lancet protective sheath core pulling mechanism according to claim 4, wherein: still include the fixed block, the fixed block sets up the slider is kept away from fixture block one side and with slider fixed connection, first fixed part pass the fixed block and with fixed block fixed connection.
6. A loose core mould comprising a mechanism for pulling the core of a protective sheath for lancets according to any one of claims 1 to 5, characterized in that: the core bar part of the injection mold core is arranged between the movable mold cavity and the fixed mold cavity, the movable mold plate is provided with a push plate mounting groove, the push plate is arranged in the push plate mounting groove and is sleeved with the movable mold plate, the ejection mechanism is arranged below the movable mold plate, the movable mold fixing plate is arranged below the ejection mechanism, the push plate and the movable mold plate are provided with mounting holes for the core-pulling mechanism to penetrate through, the core pulling mechanism penetrates into the mounting hole, a transmission mechanism of the core pulling mechanism is arranged in the push plate, and an air cylinder of the core pulling mechanism is arranged in the ejection mechanism.
7. The core back mold of claim 6, wherein: the ejector mechanism comprises an ejector pin, a first ejector pin plate, an ejector pin supporting plate, a second ejector pin plate, an ejector pin, a contour screw and a push rod, wherein the first ejector pin plate and the ejector pin supporting plate are provided with cylinder through holes, the second ejector pin plate is provided with a groove, the cylinder penetrates through the cylinder through holes on the first ejector pin plate and the ejector pin supporting plate and is arranged in the groove, ejector pin channels are respectively arranged in the movable template and the movable model cavity, one end of the ejector pin is arranged in the first ejector pin plate, the other end of the ejector pin is arranged in the ejector pin channels in the movable template and the movable model cavity, the ejector pin supporting plate is fixedly connected with the first ejector pin plate, the second ejector pin plate is provided with an ejector pin through hole, the ejector pin penetrates through hole on the second ejector pin plate and is fixedly connected with the ejector pin supporting plate, and the movable template, the first ejector pin plate and the ejector pin supporting plate are respectively provided with a push rod through hole, one end of the push rod is fixedly connected with the second thimble plate, the other end of the push rod penetrates through push rod through holes on the movable template, the first thimble plate and the thimble supporting plate to be fixedly connected with the push plate, the equal-height screw comprises a connecting part and an abutting part, the thimble supporting plate and the second thimble plate are respectively provided with a connecting through hole, the connecting part penetrates through the connecting through holes on the thimble supporting plate and the second thimble plate to be fixedly connected with the first thimble plate,
when the first ejector plate moves upwards for a limited distance, the abutting part of the equal-height screw abuts against the second ejector plate, and when the first ejector plate continues to move upwards, the abutting part drives the second ejector plate to move upwards.
8. The core back mold of claim 6, wherein: the core-pulling mechanisms are arranged in two groups, and the two groups of core-pulling mechanisms are arranged in the push plate side by side.
9. The core back mold of claim 6, wherein: still include the guide block, the guide block sets up the push pedal towards movable mould cavity and cover half die cavity one end and with push pedal fixed connection, be provided with in the guide block with mould plastics core matched with second direction spout, core bar portion passes the spout and sets up between movable mould cavity and the cover half die cavity.
10. The core back mold of claim 9, wherein: a compressed air inlet channel is arranged in the push plate, a compressed air inlet pipe communicated with the compressed air inlet channel is arranged in the guide block, and the compressed air inlet pipe is communicated with the second guide sliding groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120318762.1U CN214872389U (en) | 2021-02-04 | 2021-02-04 | Blood taking needle protective sheath core pulling mechanism and core pulling mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120318762.1U CN214872389U (en) | 2021-02-04 | 2021-02-04 | Blood taking needle protective sheath core pulling mechanism and core pulling mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214872389U true CN214872389U (en) | 2021-11-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120318762.1U Active CN214872389U (en) | 2021-02-04 | 2021-02-04 | Blood taking needle protective sheath core pulling mechanism and core pulling mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214872389U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115071081A (en) * | 2022-05-05 | 2022-09-20 | 宁波德科精密模塑有限公司 | Central venous catheter structure of loosing core fast that moulds plastics |
-
2021
- 2021-02-04 CN CN202120318762.1U patent/CN214872389U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115071081A (en) * | 2022-05-05 | 2022-09-20 | 宁波德科精密模塑有限公司 | Central venous catheter structure of loosing core fast that moulds plastics |
| CN115071081B (en) * | 2022-05-05 | 2024-02-27 | 宁波德科精密模塑有限公司 | Quick core pulling structure for injection molding of central venous catheter |
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