CN111251515B

CN111251515B - Medical device detects drawing of patterns equipment

Info

Publication number: CN111251515B
Application number: CN202010066842.2A
Authority: CN
Inventors: 冯艳
Original assignee: Hongrita Mold Shenzhen Co ltd
Current assignee: HONGRITA MOLD (SHENZHEN) Co.,Ltd.
Priority date: 2020-01-20
Filing date: 2020-01-20
Publication date: 2022-01-07
Anticipated expiration: 2040-01-20
Also published as: CN111251515A

Abstract

The invention discloses medical device detection demolding equipment which comprises a rack, a rotating seat and a core rod used for forming a pipe fitting sleeve, wherein a motor used for driving the rotating seat to rotate along a vertical axis is arranged on the rack, one end of the core rod is detachably connected with the rotating seat, a rotating seat air channel is arranged in the rotating seat, the core rod is provided with a core rod air channel communicated with the rotating seat air channel and used for ventilating between the pipe fitting sleeve and the core rod, and the rotating seat is provided with an inflatable sealing ring used for pressing and positioning the pipe fitting sleeve and the core rod and an air outlet channel used for exhausting the inflatable sealing ring when the rotating seat rotates. The invention aims to facilitate demoulding of a formed product, improve the consistency of the demoulding process, ensure the product quality and reduce the production cost.

Description

Medical device detects drawing of patterns equipment

Technical Field

The invention belongs to the field of medical device production, and particularly relates to a medical device detection demolding device.

Background

At present, a sealing device of medical equipment is generally made of rubber, wherein the silicone rubber has the characteristics of no smell and toxicity, high temperature resistance and cold resistance, and has good electrical insulation, oxidation resistance, ageing resistance, light resistance, mildew resistance and chemical stability, so that the silicone rubber plays an important role in modern medicine. The pipe fitting used in the medical equipment has high sealing requirements, so that the sealing performance needs to be ensured in the production process. Because the gum cover has certain elasticity, demoulding is inconvenient after the product is produced and molded, and manual demoulding is usually needed after cooling. The medical field has higher requirement on product performance, in the manual demoulding process, different workers have different demoulding forces, even if the same worker is used for demoulding at each time, the consistency is difficult to ensure, the time spent in the demoulding process is more, the production efficiency is lower, and the production cost is higher.

Disclosure of Invention

In order to overcome the defects of poor consistency of manual demoulding, more consumed working hours and higher labor intensity of workers in the prior art, the invention provides the medical device detection demoulding equipment, which is convenient for demoulding a formed product, improves the consistency of a demoulding process, ensures the product quality and reduces the production cost.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a medical device detects drawing of patterns equipment, includes the frame, rotates the seat and is used for the plug of shaping pipe fitting cover, be equipped with in the frame and drive and rotate the seat along the motor of vertical axis gyration, the one end of plug can be dismantled with rotating the seat and be connected, it rotates the seat air duct to be equipped with in the rotation seat, the plug be equipped with rotate a seat air duct intercommunication, to the pipe fitting cover and the plug between the plug core air duct of ventilating, it is equipped with to compress tightly the inflatable seal circle of location and rotate the seat when rotating the seat to the carminative air outlet duct of inflatable seal circle with pipe fitting cover and plug to rotate the seat. The edge of the pipe fitting sleeve and the core rod are compressed tightly to be sealed through the inflatable sealing ring, and the rotating seat air channel in the rotating seat injects compressed air into the core rod air channel, so that the pipe fitting sleeve on the core rod is bulged, and the inner side wall of the pipe fitting sleeve is separated from the outer side wall of the core rod. Due to the fixing function of the inflatable sealing ring on the pipe fitting sleeve, the pipe fitting sleeve is axially and relatively fixed with the core rod. When the rotating seat drives the core rod to rotate, the air outlet channel is opened, so that the air inflation sealing ring loses the positioning effect on the pipe fitting sleeve, if the sealing quality inside the pipe fitting sleeve is good, the pipe fitting sleeve can be thrown outwards under the internal air pressure and the centrifugal effect, and the pipe fitting sleeve is separated from the core rod, so that the demolding effect is realized. The demoulding operation of qualified products can be realized without manpower, the sealing performance of the inner part of the pipe fitting sleeve is detected before demoulding, defective products are found in time, the phenomenon that the defective products flow into a subsequent production link is avoided, and the improvement of the product quality is facilitated.

Preferably, the rotating seat comprises a seat body and a core rod positioning seat, the seat body is rotatably connected and arranged on the rack, the core rod positioning seat is fixed at the top of the seat body, the core rod positioning seat is provided with a positioning hole matched with the end part of the core rod, and the inflatable sealing ring is arranged on the inner wall of the positioning hole.

Preferably, a conical connecting part is arranged at one end of the mandrel connected with the mandrel positioning seat, and a conical surface matched with the connecting part is arranged in the positioning hole.

Preferably, one end of the mandrel, which is connected with the mandrel positioning seat, is provided with a limiting ring groove, the inner wall of the positioning hole of the mandrel positioning seat is provided with a limiting bead matched with the limiting ring groove, the outer part of the mandrel positioning seat is provided with a movable sleeve acting on the limiting bead, a movable sleeve spring is arranged between the movable sleeve and the mandrel positioning seat, and the movable sleeve spring acts on the movable sleeve to tightly press the limiting bead and the limiting ring groove.

Preferably, the rotating seat is provided with a sealing ring air duct communicated with the inflatable sealing ring, the sealing ring air duct is communicated with the rotating seat air duct, and a pressure push rod and a push rod spring for pushing the pressure push rod to close the rotating seat air duct are arranged behind the communicating part of the rotating seat air duct and the sealing ring air duct.

Preferably, the top end of the rotating seat is provided with a plunger hole communicated with the air passage of the rotating seat, a sealed plunger is fixed in the plunger hole, and the lower end of the plunger is provided with a guide hole matched with the pressure mandril.

Preferably, a sliding groove is arranged in the air outlet channel, the sliding groove extends outwards in parallel with the axis of the mandrel, a centrifugal block and a centrifugal block spring acting on the centrifugal block to close the air outlet channel are arranged in the sliding groove, and the centrifugal block opens the air outlet channel when the rotating seat rotates.

Preferably, the outer end of the mandrel is provided with a mandrel air outlet communicated with the mandrel air passage, the mandrel air outlet is provided with an air outlet ring sliding along the axial direction of the mandrel and an air outlet ring spring pushing the air outlet ring to close the mandrel air outlet, and the air outlet ring of the mandrel air outlet is opened when the mandrel air passage enters air.

Preferably, the rotating seat is provided with a balance weight on the opposite side of the core rod.

The invention has the beneficial effects that: (1) injecting air between the pipe fitting sleeve and the core rod, separating the pipe fitting sleeve from the core rod through air pressure, and demolding through the centrifugal action generated by internal air pressure and rotation, so that demolding efficiency is improved, and demolding effect consistency is ensured; (2) the pipe fitting sleeve and the core rod are kept in an axial relatively fixed state in the injection process, and certain air pressure is provided in the pipe fitting sleeve, so that the damage condition can be conveniently found; (3) before demolding, the sealing performance of the pipe fitting sleeve is detected, and therefore the situation that hidden leakage defective products enter a subsequent production link is avoided.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is a schematic view of the mandrel of the present invention shown separated from the rotatable base;

FIG. 4 is a schematic structural view of the joint between the mandrel and the rotating base according to the present invention;

FIG. 5 is a schematic view of the construction of a mandrel head according to the present invention;

fig. 6 is a schematic structural view of the outlet passage of the present invention when it is opened.

In the figure: the device comprises a rotating seat 1, a mandrel positioning seat 101, a seat body 102, a conical surface 101a, a rotating seat air duct 1a, a driven pulley 2, a belt 3, a driving pulley 4, a frame 5, a motor 6, a balance weight 7, a movable sleeve 8, a mandrel 9, a mandrel air outlet 91, a head block 9a, a connecting part 9b, a limiting ring groove 9c, a plunger 10, a movable sleeve spring 11, a limiting bead 12, an inflatable sealing ring 13, a pipe fitting sleeve 14, an air outlet ring 15, a mandrel air duct 16, a centrifugal block 17, an air outlet channel 18, a sealing ring air duct 19, a pressure ejector rod 20, an ejector rod spring 21 and a centrifugal block spring 22.

Detailed Description

The invention is further described with reference to the following figures and detailed description.

In the embodiment shown in fig. 1, a medical device detection demolding device comprises a rack 5, a rotating seat 1 and a core rod 9 for forming a pipe fitting sleeve 14, wherein the rotating seat 1 and the rack 5 are in rotating connection and matching, the rotating seat 1 rotates along a vertical axis, a motor 6 is arranged on the rack 5, an output shaft of the motor 6 is vertically and downwards arranged, a driving belt wheel 4 is arranged on an output shaft of the motor 6, a driven belt wheel 2 is arranged at the bottom of the rotating seat 1, the driving belt wheel 4 and the driven belt wheel 2 are driven by a belt 3, and the rotating seat 1 is driven to rotate when the motor 6 rotates. The core rod 9 is arranged along the horizontal direction, and the rotating seat 1 also drives the core rod 9 to rotate on the horizontal plane when rotating. A plurality of core rods 9 can be arranged on the rotating seat 1, and the core rods 9 are preferably arranged at equal angles, so that the rotating seat 1 is ensured to rotate smoothly and stably. When a single core rod 9 is adopted on the rotating seat 1, the rotating seat 1 is provided with a balance weight 7 or other balance weight modes on the opposite side of the core rod 9, so that the dynamic balance of the rotating seat 1 is improved, and the rotary vibration is reduced.

As shown in fig. 3, one end of the core rod 9 is detachably connected with the rotating base 1. The rotating seat 1 includes a seat body 102 and a core rod positioning seat 101, the seat body 102 is rotatably connected to the rack 5, and the core rod positioning seat 101 is fixed to the top of the seat body 102. As shown in fig. 4, a tapered connecting portion 9b is provided at one end of the mandrel 9 connected to the mandrel positioning seat 101, a tapered surface 101a is provided in the positioning hole, and when the mandrel 9 is connected to the mandrel positioning seat 101, the connecting portion 9b is attached to the tapered surface 101 a. The end that plug 9 is connected with plug positioning seat 101 is equipped with spacing annular 9c, and plug positioning seat 101 is equipped with the spacing pearl 12 with spacing annular 9c complex at the inner wall of locating hole, and the outside of plug positioning seat 101 is equipped with the movable sleeve 8 that acts on spacing pearl 12, is equipped with movable sleeve spring 11 between movable sleeve 8 and plug positioning seat 101, and movable sleeve spring 11 acts on movable sleeve 8 and compresses tightly spacing pearl 12 and spacing annular 9 c.

As shown in fig. 4, a rotary seat air passage 1a is provided in the rotary seat 1, the rotary seat air passage 1a is arranged along the axial direction of the rotary seat 1, and the mandrel 9 is provided with a mandrel air passage 16 which is communicated with the rotary seat air passage 1a and supplies air between the pipe sleeve 14 and the mandrel 9. The rotating seat 1 is provided with a sealing ring air duct 19 communicated with the inflatable sealing ring 13, the sealing ring air duct 19 is communicated with a rotating seat air duct 1a, and the rotating seat air duct 1a is provided with a pressure push rod 20 and a push rod spring 21 for pushing the pressure push rod 20 to close the rotating seat air duct 1a behind the communication part of the sealing ring air duct 19. The top of the rotating seat 1 is provided with a plunger hole communicated with the rotating seat air duct 1a, a sealed plunger 10 is fixed in the plunger hole, and the lower end of the plunger 10 is provided with a guide hole matched with the pressure mandril 20.

The mandrel positioning seat 101 is provided with a positioning hole matched with the end part of the mandrel 9, the inflatable sealing ring 13 is arranged on the inner wall of the positioning hole, and the inflatable sealing ring 13 corresponds to the opening edge position of the pipe fitting sleeve 14. The rotating seat 1 is provided with an inflatable sealing ring 13 for pressing and positioning the pipe fitting sleeve 14 and the core rod 9, and an air outlet channel 18 for exhausting the inflatable sealing ring 13 when the rotating seat 1 rotates. A chute is arranged in the air outlet channel 18, the chute extends outwards in parallel with the axis of the mandrel 9, a centrifugal block 17 and a centrifugal block spring 22 acting on the centrifugal block 17 to close the air outlet channel 18 are arranged in the chute, and the centrifugal block 17 opens the air outlet channel 18 when the rotating seat 1 rotates.

As shown in fig. 5, the outer end of the mandrel 9 is provided with a mandrel gas outlet 91 communicating with the mandrel air duct 16, and the mandrel gas outlet 91 is provided with a gas discharge ring 15. The end of the core rod 9 is also provided with a head block 9a, the head block 9a is fixedly connected with the core rod 9, and the head block 9a is provided with an air outlet ring groove for the axial sliding of the air outlet ring 15. The mandrel gas outlet 91 is further provided with a gas outlet ring spring, and the gas outlet ring spring acts on the gas outlet ring 15 along the axial direction of the mandrel 9 to push the gas outlet ring 15 to close the mandrel gas outlet 91. The mandrel air passage 16 is used for air intake, and when the air intake pressure is greater than the acting force of the air outlet ring spring, the air outlet ring 15 is pushed to open the mandrel air outlet 91.

In the actual operation process, the core rod 9 and the formed pipe fitting sleeve 14 positioned on the core rod 9 are connected with the core rod positioning seat 101 on the rotating seat 1 through the connecting part 9b of the core rod 9, the movable sleeve 8 is pushed to compress the movable sleeve spring 11 during connection, so that the limiting ball 12 is in a movable state, the connecting part 9b is convenient to contact with the conical surface 101a of the positioning hole, meanwhile, the limiting ball 12 is matched with the limiting ring groove 9c, when the movable sleeve 8 is loosened, the movable sleeve 8 resets under the action of the movable sleeve spring 11, the limiting ball 12 is tightly clamped with the limiting ring groove 9c, and therefore the positioning of the core rod 9 is completed. Compressed air is introduced into the rotating seat air duct 1a, the sealing ring air duct 19 is positioned in front of the mandrel air duct 16, the pressure ejector rod 20 is arranged on the rotating seat air duct 1a, and the pressure ejector rod 20 closes the space between the rotating seat air duct 1a and the mandrel air duct 16, so that air pressure firstly enters the sealing ring air duct 19, the inflatable sealing ring 13 is inflated to expand the pipe fitting sleeve 14 acting on the mandrel 9, and the pipe fitting sleeve 14 and the mandrel 9 are compressed and fixed to prevent loosening. Then, along with the further increase of the air pressure, the pressure ejector rod 20 is pushed to enable the rotating seat air passage 1a and the mandrel air passage 16 to be communicated, air flows through the mandrel air passage 16, the air outlet ring 15 is driven to compress the air outlet ring spring, the mandrel air outlet 91 is opened, so that the air enters between the mandrel 9 and the pipe fitting sleeve 14, the pipe fitting sleeve 14 on the mandrel 9 is expanded under the action of the air pressure, and the inner side wall of the pipe fitting sleeve 14 is separated from the outer side wall of the mandrel 9. The inflatable sealing ring 13 keeps the fixing function on the pipe fitting sleeve 14, the pipe fitting sleeve 14 keeps relatively fixed with the mandrel 9 in the axial direction, and at the moment, the centrifugal block 17 in the air outlet channel 18 enables the air outlet channel 18 to be in a closed state under the action of the centrifugal block spring 22. Finally, under the action of the motor 6, the rotating base 1 drives the core rod 9 to rotate, as shown in fig. 6, the centrifugal block 17 moves outwards along the axial direction of the core rod 9 due to the centrifugal action, so that the air outlet channel 18 is opened, the air pressure in the inflatable sealing ring 13 is reduced, and the positioning effect on the pipe fitting sleeve 14 is lost. If the sealing quality in the pipe fitting sleeve 14 is good, the pipe fitting sleeve can be thrown outwards under the action of internal air pressure and centrifugation and separated from the core rod 9, so that the demolding effect is realized; if the pipe fitting sleeve 14 cannot be smoothly demoulded from the core rod 9, the pipe fitting sleeve 14 may have a forming quality problem and leakage hidden trouble, and needs to be recycled to prevent the pipe fitting sleeve from flowing into a subsequent production link.

Claims

1. A medical device detection demoulding device is characterized by comprising a rack (5), a rotating seat (1) and a core rod (9) used for forming a pipe fitting sleeve, wherein the rack (5) is provided with a motor (6) for driving the rotating seat (1) to rotate along a vertical axis, one end of the core rod (9) is detachably connected with the rotating seat (1), a rotating seat air duct (1 a) is arranged in the rotating seat (1), the core rod (9) is provided with a core rod air duct (16) communicated with the rotating seat air duct (1 a) and used for ventilating between the pipe fitting sleeve and the core rod (9), the rotating seat (1) is provided with an inflatable sealing ring (13) for compressing and positioning the pipe fitting sleeve and the core rod (9) and an air outlet channel (18) for exhausting the inflatable sealing ring (13) when the rotating seat (1) rotates, the rotating seat (1) is provided with a sealing ring air duct (19) communicated with the inflatable sealing ring (13), the sealing ring air duct (19) is communicated with the rotating seat air duct (1 a), and a pressure ejector rod (20) and an ejector rod spring (21) for pushing the pressure ejector rod (20) to close the rotating seat air duct (1 a) are arranged behind the communicating position of the rotating seat air duct (1 a) and the sealing ring air duct (19).

2. The medical device detection demolding equipment as claimed in claim 1, wherein the rotating seat (1) comprises a seat body (102) and a core rod positioning seat (101), the seat body (102) is rotatably connected and arranged on the rack (5), the core rod positioning seat (101) is fixed on the top of the seat body (102), the core rod positioning seat (101) is provided with a positioning hole matched with the end of the core rod (9), and the inflatable sealing ring (13) is arranged on the inner wall of the positioning hole.

3. The medical device detecting and demolding device as claimed in claim 2, wherein one end of the core rod (9) connected with the core rod positioning seat (101) is provided with a conical connecting portion (9 b), and the positioning hole is internally provided with a conical surface (101 a) matched with the connecting portion (9 b).

4. The medical device detection demolding equipment as claimed in claim 2 or 3, wherein a limiting ring groove (9 c) is formed in one end, connected with the core rod positioning seat (101), of the core rod (9), a limiting bead (12) matched with the limiting ring groove (9 c) is arranged on the inner wall of the positioning hole of the core rod positioning seat (101), a movable sleeve (8) acting on the limiting bead (12) is arranged on the outer portion of the core rod positioning seat (101), a movable sleeve spring (11) is arranged between the movable sleeve (8) and the core rod positioning seat (101), and the movable sleeve spring (11) acts on the movable sleeve (8) to press the limiting bead (12) and the limiting ring groove (9 c).

5. The medical device detection demolding equipment as claimed in claim 1, wherein a plunger hole communicated with the rotating seat vent passage (1 a) is formed in the top end of the rotating seat (1), a sealed plunger (10) is fixed in the plunger hole, and a guide hole matched with the pressure ejector rod (20) is formed in the lower end of the plunger (10).

6. The medical device detection demolding equipment as claimed in claim 1, 2 or 3, wherein a sliding groove is formed in the air outlet channel (18), the sliding groove extends outwards in parallel with the axis of the core rod (9), a centrifugal block (17) and a centrifugal block spring (22) acting on the centrifugal block (17) to close the air outlet channel (18) are arranged in the sliding groove, and the centrifugal block (17) opens the air outlet channel (18) when the rotating seat (1) rotates.

7. The medical device detection demolding equipment as claimed in claim 1, 2 or 3, wherein a mandrel air outlet (91) communicated with the mandrel air passage (16) is formed in the outer end of the mandrel (9), the mandrel air outlet (91) is provided with an air outlet ring (15) which slides along the axial direction of the mandrel (9) and an air outlet ring spring which pushes the air outlet ring (15) to close the mandrel air outlet (91), and the air outlet ring (15) of the mandrel air outlet (91) is opened when the mandrel air passage (16) is filled with air.

8. A medical device inspection stripping apparatus as claimed in claim 1, 2 or 3, wherein the rotary base (1) is provided with a counter-weight (7) on the opposite side of the core rod (9).