CN216860417U - Integrated injection piece mold for soft tissue expander - Google Patents
Integrated injection piece mold for soft tissue expander Download PDFInfo
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- CN216860417U CN216860417U CN202023094722.8U CN202023094722U CN216860417U CN 216860417 U CN216860417 U CN 216860417U CN 202023094722 U CN202023094722 U CN 202023094722U CN 216860417 U CN216860417 U CN 216860417U
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- injection valve
- circular groove
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Abstract
The utility model discloses an integrated injection piece mold for a soft tissue dilator. The mold comprises an upper mold, a lower mold, a contact pin and a movable contact pin template; a plurality of circular grooves corresponding to the shape and the size of the injection valve are vertically arranged on one side of the lower die side by side; a plurality of transverse long semicircular tubular grooves corresponding to the half shape and size of the connecting conduit are vertically arranged in parallel in the middle of the lower die; the front end of the long semicircular tubular groove is provided with an extension section, namely a semicircular tubular steel bar is inserted into the circular groove of the corresponding injection valve part; the other side of the lower die is provided with a groove for placing a movable contact pin template; the upper die is vertically provided with a plurality of transverse long semicircular tubular grooves in parallel corresponding to the other half of the connecting conduit in shape and size; the upper part of the side surface of the movable contact pin template is provided with a plurality of jacks capable of being inserted with contact pins. The integrated injection piece mold optimizes the injection piece manufacturing process, reduces product equipment, facilities and energy consumption, and improves the performance of the soft tissue dilator.
Description
Technical Field
The utility model belongs to the technical field of medical instruments, and relates to an integrated injection piece mold for a soft tissue dilator.
Background
The existing soft tissue dilator injection part needs to use 3 molds, namely an injection valve, an injection valve cover plate and a connecting conduit; 3 processing devices are required, namely a semi-automatic pressure forming machine, an extrusion vulcanizing machine and a capping machine. The processing equipment and the die comprise 6 pieces, and the processing equipment and the die are required to be maintained and treated regularly.
The existing process for manufacturing a molded injection part is as follows: the single injection valve, the small steel bowl, the injection valve cover plate, the connecting conduit and other fittings are manufactured respectively, and then the single fittings are bonded and assembled into a molded injection part.
The existing processing technology of a molded injection part comprises the following steps: the injection valve pressing, the cleaning of the small steel bowl, the injection valve plate pressing, the connecting pipe pressing and the bonding assembly are 5 process steps, and at least 4 posts (the injection valve pressing and the injection valve plate pressing can be combined into one post) are needed to complete the process.
In a word, the soft tissue dilator injection piece is produced by using the existing mould and equipment, the processing technology is complex, the production efficiency is low, and the qualification rate is low; each part has the qualification rate requirement, the requirement on operators is high, and each operator capable of manufacturing qualified injection parts needs to be trained for 6 months.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide the integrated injection piece mold of the soft tissue dilator, which can optimize the manufacturing process of the injection piece, reduce product equipment, facilities and energy consumption and improve the performance of the soft tissue dilator.
The technical scheme of the utility model is as follows:
the utility model relates to an integrated injection mold of a soft tissue dilator, which comprises an upper mold, a lower mold, a contact pin and a movable contact pin template; the lower die is a flat plate and is provided with a plurality of grooves: a plurality of circular grooves (namely circular grooves corresponding to the injection valve part) corresponding to the shape and the size of the injection valve are vertically arranged side by side on one side of the lower die, a plurality of transverse long semicircular tubular grooves (namely long semicircular tubular grooves corresponding to half of the connecting conduit part) corresponding to half of the connecting conduit part are vertically arranged side by side in the middle of the lower die, and a groove (namely a groove corresponding to the movable contact pin template part) capable of placing a movable contact pin template is arranged on the other side of the lower die; the front end of the long semicircular tubular groove corresponding to the half connecting pipe part is provided with an extension section (namely a semicircular tubular steel bar) which is inserted into the circular groove corresponding to the injection valve part; the upper die is a flat plate which is shorter than the lower die (the upper die lacks a groove corresponding to the movable contact pin template part on the lower die), and a plurality of transverse long semicircular grooves (corresponding to the long semicircular grooves of the other half of the connecting conduit part) which correspond to the other half of the connecting conduit part in shape and size are vertically arranged side by side on the upper die; the upper part of the side surface of the movable contact pin template is provided with a plurality of jacks capable of being inserted into contact pins; the pin is inserted into the jack of the movable pin template.
Further, the mold also includes a small steel bowl placed in the circular groove of the corresponding injection valve portion; the diameter of the chassis of the small steel bowl is the same as the diameter of the opening, and is smaller than the diameter of the circular groove of the corresponding injection valve part; the bottom plate of the small steel bowl is positioned at a deeper part in the circular groove, the outer surface of the bottom plate of the small steel bowl is tightly attached to the solid rubber material in the circular groove, the opening of the small steel bowl is positioned at a shallower part in the circular groove and is close to the opening of the circular groove, but a certain distance is reserved between the opening of the small steel bowl and the opening of the circular groove; one side edge of the small steel bowl is provided with a small hole which has the same outer diameter as the connecting conduit and can be communicated with the connecting conduit.
Further, a small steel bowl is placed in an intermediate position within the circular recess of the corresponding injection valve portion.
Furthermore, the upper section of the movable pin steel template is a square body, and the lower section of the movable pin steel template is a square cone body with a wide upper part and a narrow lower part (namely, two outer side surfaces of the lower section are inclined planes, and the cross section of the lower section is in an inverted trapezoid shape).
Furthermore, an upper die and a lower die of the die are made of metal materials.
Furthermore, the upper die and the lower die of the die are made of stainless steel.
Furthermore, the movable contact pin template is made of metal.
Furthermore, the movable pin template is made of stainless steel and is a movable pin steel template. The small steel bowl is made of stainless steel.
The improved soft tissue dilator integrated injection part manufacturing process is to integrally vulcanize and mold four accessories of an injection valve, a small steel bowl, an injection valve cover plate and a connecting conduit through a modified mold (namely the soft tissue dilator integrated injection part mold of the utility model) to directly obtain an integrated injection part.
The method for manufacturing the integrated injection piece by using the integrated injection piece mold of the soft tissue dilator comprises the following steps:
1) placing a piece of solid sizing material corresponding to the injection valve on the lower die at the middle part in the circular groove (corresponding to the position of the injection valve) corresponding to the injection valve part, placing a small steel bowl on the solid sizing material in the circular groove corresponding to the injection valve part, wherein the base plate of the small steel bowl is positioned at the deeper part in the circular groove, the outer surface of the base plate of the small steel bowl is tightly attached to the solid sizing material in the circular groove, the opening of the small steel bowl is positioned at the shallower part in the circular groove and is close to the opening of the circular groove, but a certain distance is reserved between the small steel bowl and the circular groove; meanwhile, the small hole on the side edge of the small steel bowl is connected (touched) with the front end extension section of the long semicircular tubular groove of the corresponding connecting guide pipe;
2) on the lower die, a solid sizing material is flatly paved in a long semicircular tubular groove (corresponding to the position of the connecting conduit) corresponding to one half of the connecting conduit part;
3) placing the movable pin steel template at a corresponding position (corresponding to the movable pin steel template part) on the lower die, namely, placing the movable pin steel template in a groove on the lower die, wherein the movable pin steel template can be placed in the groove; inserting one end of a contact pin into a jack on a movable contact pin steel template; correspondingly, the other end of the contact pin penetrates through a small hole on the side edge of the small steel bowl and is inserted into the small steel bowl, and the contact pin is flatly placed on the solid glue material in the long semicircular tubular groove of the corresponding half connecting conduit;
4) closing the dies (aligning and combining the upper die and the lower die, namely aligning and combining the long semicircular tubular groove of the corresponding half connecting pipe part on the lower die and the long semicircular tubular groove of the corresponding other half connecting pipe part on the upper die), and putting the whole die into a semi-automatic pressure forming machine for vulcanization forming;
5) taking out the mold and cooling; opening the mold (opening the upper mold and taking down the upper mold); the shape of the connecting conduit part and the injection valve part are molded at this time;
6) a layer of solid glue material corresponding to the cover piece part of the injection valve is flatly distributed on the opening position of the round groove corresponding to the injection valve part on the lower die, namely the opening of the small steel bowl;
7) closing the die, namely putting the whole die into a semi-automatic pressure forming machine for vulcanization forming;
8) taking out the mold and cooling; opening the mold (opening the upper mold and taking down the upper mold); the shape of the connecting conduit part, the injection valve part and the injection valve cover sheet part are molded;
9) pushing the movable pin steel template on the lower die outwards to one point to separate the pin, and taking the movable pin steel template out of the groove on the lower die; then, taking out the compression-molded integrated injection piece from the lower die, and pulling out the contact pin from the integrated injection piece by using tweezers; the hole channel left after the contact pin is pulled out is the internal channel of the connecting conduit of the integrated injection piece;
10) and trimming the waste edges of the manufactured integrated injection piece by using scissors, namely finishing the manufacturing process of the whole integrated injection piece to obtain a plurality of soft tissue dilator integrated injection pieces.
In the step 4) and the step 7), the temperature for vulcanization molding is 120-.
In the step 1), the step 2), the step 3) and the step 6), the solid rubber is long-term implanted soft solid silicone rubber.
The utility model has the beneficial effects that:
the integral injection piece die for the soft tissue dilator optimizes the manufacturing process of the injection piece, reduces product equipment, facilities and energy consumption, and improves the performance of the soft tissue dilator.
The integrated injection piece mould for the soft tissue dilator is integrated on a pair of moulds by referring to the shapes of the existing injection valve, an injection valve cover plate and connecting conduit equipment; the energy consumption of the die, the equipment and the product preparation is reduced, the process operation is optimized, and the process yield is improved; the product integrity is improved, the injection piece assembled by bonding and assembling has firm performance without the injection piece integrally formed, and the appearance is attractive.
The integrated injection piece mold for the soft tissue dilator has the following advantages:
1) after the molds are combined, the number of the original 3 molds is reduced to 1, and the workload in the aspects of processing, maintenance and the like of the molds is reduced.
2) After the molds are combined, the number of injection part manufacturing and processing equipment is reduced from 3 to 1, and the manufacturing and processing can be completed only by one press forming equipment, namely a semi-automatic pressure forming machine. Also, the extrusion vulcanizer may not be used.
3) The performance of the soft tissue dilator is improved. The injection piece formed integrally has greatly raised puncture sealing performance and puncture limiting part performance.
4) The injection part manufacturing process is optimized, 4 accessories do not need to be manufactured firstly and then assembled, only integral forming is needed, the working hours are improved, the process is reduced, and the process is optimized.
5) After the soft tissue dilator injection piece mould is optimized, the process steps are reduced, the working hours are improved, the requirement on operators is not high, and each operator capable of preparing qualified injection pieces can be trained for 1-2 weeks to operate on duty.
Drawings
FIG. 1 is a schematic top view of a lower mold 1 of the soft tissue expander integrated injection mold of the present invention;
FIG. 2 is a schematic side view of the lower mold 1 of the soft tissue expander integrated injection mold of the present invention;
FIG. 3 is a schematic top view of the upper mold 2 of the soft tissue expander integrated injection mold of the present invention;
fig. 4 is a side sectional view of a press-molded one-piece injection member made with the mold of the present invention (pin 3 not pulled out).
In the figure: 1. the lower die 2, the upper die 3, the contact pin 4, the movable contact pin steel template 5, the small steel bowl 6, the circular groove 7 corresponding to the injection valve part, the long semicircular tubular groove 8 corresponding to one half of the connecting conduit part, the groove 9 corresponding to the movable contact pin steel template part, a small section semicircular tubular steel bar 10, the solid sizing material 11, the injection valve part 12, the connecting conduit part 13, the injection valve cover piece part 21, the long semicircular tubular groove 41 corresponding to the other half of the connecting conduit part, the jack 51, the chassis 52, the opening 53, the small hole 53
Detailed Description
The utility model is further described below with reference to the following figures and examples.
Examples
As shown in fig. 1 and 2, the integrated injection mold for the soft tissue expander comprises an upper mold 2, a lower mold 1, pins 3 and a movable pin steel template 4; the lower die 1 is a metal flat plate provided with a plurality of grooves: one side of the lower die is vertically provided with four circular grooves (namely circular grooves 6 corresponding to the injection valve part) which are parallel to each other and correspond to the shape and the size of the injection valve, the middle of the lower die is vertically provided with four horizontal long semicircular tubular grooves (namely long semicircular tubular grooves 7 corresponding to half of the connecting guide pipe part) which are parallel to each other and correspond to the half of the connecting guide pipe, and the other side of the lower die is provided with a groove (namely a groove 8 corresponding to the movable contact pin steel template part) which can be used for placing a movable contact pin steel template; the front end of the long semicircular tubular groove corresponding to the half connecting pipe part is provided with an extension section (namely a semicircular tubular steel bar 9) which is inserted into the circular groove 6 corresponding to the injection valve part; the upper die 2 is a metal flat plate which is shorter than the lower die 1 (the upper die 2 lacks a groove 8 on the lower die 1 corresponding to the movable contact pin steel die plate part), and four transverse long semicircular tubular grooves (namely, long semicircular tubular grooves 21 corresponding to the other half of the connecting conduit part) which correspond to the other half of the connecting conduit part in shape and size are vertically arranged side by side on the upper die; the upper part of the side surface of the movable pin steel template 4 is provided with a plurality of jacks 41 which can be inserted into the pins 3; the pin 3 is inserted into the insertion hole 41 of the movable pin template 4. The upper section of the movable pin steel template 4 is a cuboid, and the lower section of the movable pin steel template is a square cone with a wide upper part and a narrow lower part (namely, two outer side surfaces of the lower section are inclined planes, and the cross section of the lower section is in an inverted trapezoid shape).
The mould further comprises a small steel bowl 5 placed in a circular groove 6 corresponding to the injection valve part; the base plate 51 of the small steel bowl 5 has the same diameter as the opening 52 and is smaller than the diameter of the circular recess 6 of the corresponding injection valve portion (i.e. the diameter of the injection valve). The small steel bowl 5 has a height of about half the height of the circular recess 6 of the corresponding injection valve portion. The diameter of the bottom of the injection valve is 12mm, the diameter of the small steel bowl chassis is 7mm, and the small steel bowl 5 is placed in the middle position in the circular groove 6 corresponding to the injection valve part. The height of the small steel bowl is 4mm, and the height of the injection valve is 8 mm. The bottom disc 51 of the small steel bowl 5 is positioned at a deeper position in the circular groove 6, the outer surface of the bottom disc 51 of the small steel bowl 5 is tightly attached to the solid rubber in the circular groove 6, the opening 52 of the small steel bowl 5 is positioned at a shallower position in the circular groove 6 and is close to the opening of the circular groove 6, but a certain distance (1-2mm) exists between the two; one side edge of the small steel bowl 5 is provided with a small hole 53 which has the same outer diameter as the connecting conduit and can be communicated with the connecting conduit. The small steel bowl 5 is manufactured and processed according to drawings by machining outside the commission.
The upper die 2 and the lower die 1 of the die are made of stainless steel.
The soft tissue dilator integrated injection mold can be used for simultaneously manufacturing four soft tissue dilator integrated injection parts at one time.
The integral injection piece manufacturing method by using the integral injection piece mold for the soft tissue dilator is characterized in that the specific processing steps of the integral injection piece mold for manufacturing and processing the soft tissue dilator are as follows:
1) a piece of solid glue 10 corresponding to the injection valve part 11 (i.e. a piece of solid glue of a corresponding weight to be filled into the injection valve part 11, a piece of round glue of about 2.5g in weight, about 8mm in diameter and about 3mm in thickness, the shape of the glue may not be very regular) is placed in the middle of the lower die in the round groove 6 corresponding to the injection valve part (the position corresponding to the injection valve); placing a small steel bowl 5 on the solid sizing material 13 in the circular groove 6 corresponding to the injection valve part, wherein a bottom disc 51 of the small steel bowl 5 is positioned at a deeper part in the circular groove, the outer surface of the bottom disc 51 of the small steel bowl 5 is tightly attached to the solid sizing material 10 in the circular groove, and an opening 52 of the small steel bowl 5 is positioned at a shallower part in the circular groove and is close to the opening of the circular groove, but a certain distance is reserved between the small steel bowl and the opening; meanwhile, the small hole 53 on the side of the small steel bowl is connected (touched) with the front end extension section of the long semicircular tubular groove of the corresponding connecting conduit;
2) on the lower die 1, the solid sizing material 10 corresponding to the connecting conduit part 12 is paved in the long semicircular tubular groove 7 (corresponding to the position of the connecting conduit) corresponding to one half of the connecting conduit part;
3) the movable pin steel template 4 is placed at a corresponding position (corresponding to the movable pin steel template part) on the lower die 1, namely, on a groove 8 which can be used for placing the movable pin steel template on the lower die 1; inserting one end of the pin 3 into the jack 41 on the movable pin steel template 4; correspondingly, the other end of the contact pin 3 penetrates through a small hole 53 on the side edge of the small steel bowl 5 and is inserted into the small steel bowl 5, and the contact pin 3 is flatly placed on the solid glue material 10 in the long semicircular tubular groove 7 of the corresponding half connecting guide pipe;
4) closing the dies (aligning and combining the upper die and the lower die, namely aligning and combining the long semicircular tubular groove 7 of the corresponding half connecting pipe part on the lower die 1 and the long semicircular tubular groove 21 of the corresponding half connecting pipe part on the upper die 2), and putting the whole die into a semi-automatic pressure forming machine for vulcanization forming; the temperature for vulcanization molding is about 125 ℃, and the time is 6 min; (this step is mainly to press-mold the injection valve portion 11 and the connecting conduit portion 12)
5) Taking out the mold and cooling; opening the mold (opening and taking down the upper mold 2 pressed on the lower mold 1); the outer shape of the connecting conduit part 12 and the injection valve part 11 are molded at this time;
6) a layer of solid glue 10 corresponding to the cover piece part 13 of the injection valve is flatly distributed on the opening position of the round groove 6 of the injection valve part, namely the opening 52 of the small steel bowl 5, on the lower die 1;
7) closing the die, namely putting the whole die into a semi-automatic pressure forming machine for vulcanization forming; the temperature for vulcanization molding is about 125 ℃, and the time is 6 min; (this step is mainly to press-mold the cover piece part 13 of the injection valve)
8) Taking out the mold and cooling; opening the mold (opening and taking down the upper mold 2 pressed on the lower mold 1); the outer shape of the connecting conduit portion 12, the injection valve portion 11 and the injection valve cover piece portion 13 have been molded at this time;
9) the movable pin steel template 4 on the lower die 1 is pushed outwards to a certain extent to be separated from the pins 3, and the movable pin steel template 4 is taken out upwards from the groove (namely the groove 8 corresponding to the movable pin steel template part) on the lower die 1; then, taking out the integrated injection piece formed by pressing from the lower die 1, and pulling out the contact pin 3 from the integrated injection piece by using tweezers; the hole channel left after the contact pin 3 is pulled out is the internal channel of the connecting conduit part 12 of the integrated injection piece;
10) and trimming the waste edges of the manufactured integrated injection piece by using scissors, namely finishing the manufacturing process of the whole integrated injection piece to obtain the four soft tissue dilator integrated injection pieces.
The solid gum material 10 used in the present embodiment is a long-term implantation type soft solid silicone rubber, which is one or two of the solid silicone rubber products of the U.S. nusilMED47 series.
Claims (9)
1. An integrated injection mold for a soft tissue expander is characterized by comprising an upper mold, a lower mold, a contact pin and a movable contact pin template; the lower die is a flat plate and is provided with a plurality of grooves: a plurality of circular grooves corresponding to the shape and the size of the injection valve, namely the circular grooves corresponding to the injection valve part, are vertically arranged on one side of the lower die side by side; a plurality of transverse long semicircular tubular grooves corresponding to the half shape and size of the connecting conduit, namely the long semicircular tubular grooves corresponding to the half connecting conduit part, are vertically arranged in parallel in the middle of the lower die; the other side of the lower die is provided with a groove for placing the movable contact pin template, namely the groove corresponding to the movable contact pin template part; the front end of the long semicircular tubular groove corresponding to the half connecting pipe part is provided with an extension section, namely a semicircular tubular steel bar is inserted into the circular groove corresponding to the injection valve part; the upper die is a flat plate which is shorter than the lower die, and a plurality of transverse long semicircular tubular grooves corresponding to the other half of the connecting conduit in shape and size, namely the long semicircular tubular grooves corresponding to the other half of the connecting conduit part, are vertically arranged side by side on the upper die; the upper part of the side surface of the movable contact pin template is provided with a plurality of jacks capable of being inserted into contact pins; the pin is inserted into the jack of the movable pin template.
2. The soft tissue dilator integrated injection member mold of claim 1, further comprising a steel bowl placed within a circular groove of a corresponding injection valve portion; the diameter of the chassis of the steel bowl is the same as the diameter of the opening, and is smaller than the diameter of the circular groove of the corresponding injection valve part; the bottom plate of the steel bowl is positioned at the deep part in the circular groove, the outer surface of the bottom plate of the steel bowl is tightly attached to the solid sizing material in the circular groove, the opening of the steel bowl is positioned at the shallow part in the circular groove and is close to the opening of the circular groove, but a space is reserved between the opening of the steel bowl and the opening of the circular groove; one side edge of the steel bowl is provided with a hole which has the same outer diameter as the connecting conduit and can be communicated with the connecting conduit.
3. The soft tissue dilator integrated injection member mold of claim 1, wherein the steel bowl is placed in an intermediate position within the circular groove of the corresponding injection valve portion.
4. The soft tissue expander integrated injection mold of claim 1, wherein the movable pin template has a square upper section and a square lower section with a wide upper section and a narrow lower section.
5. The soft tissue expander integrated injection mold as claimed in claim 1, 2, 3 or 4, wherein the upper and lower molds of the mold are made of metal.
6. The soft tissue dilator integrated injection mold of claim 5, wherein the upper and lower molds of the mold are stainless steel.
7. The soft tissue expander integrated injection mold of claim 6, wherein the movable pin template is a metal material.
8. The soft tissue expander integrated injection mold of claim 7, wherein the movable pin template is a stainless steel material and is a movable pin steel template.
9. The soft tissue dilator integrated injection mold of claim 2, wherein the steel bowl is stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023094722.8U CN216860417U (en) | 2020-12-21 | 2020-12-21 | Integrated injection piece mold for soft tissue expander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023094722.8U CN216860417U (en) | 2020-12-21 | 2020-12-21 | Integrated injection piece mold for soft tissue expander |
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| Publication Number | Publication Date |
|---|---|
| CN216860417U true CN216860417U (en) | 2022-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023094722.8U Active CN216860417U (en) | 2020-12-21 | 2020-12-21 | Integrated injection piece mold for soft tissue expander |
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|---|---|
| CN (1) | CN216860417U (en) |
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- 2020-12-21 CN CN202023094722.8U patent/CN216860417U/en active Active
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