CN210061724U

CN210061724U - Rubber stopper removes limit device

Info

Publication number: CN210061724U
Application number: CN201920742571.0U
Authority: CN
Inventors: 程逸豪
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-22
Filing date: 2019-05-22
Publication date: 2020-02-14
Anticipated expiration: 2029-05-22

Abstract

The utility model discloses a rubber stopper edge removing device, which comprises an edge removing die male punching part positioned on a punch press sliding block and a female punching plate positioned below the edge removing die male punching part, wherein a male punching inner hole of the edge removing die male punching part is matched with the neck of a rubber stopper in a positioning way; the utility model discloses finally can solve the vulcanized rubber piece and remove the problem that the hole appears certain dislocation because of rubber shrink accumulation results in rubber stopper and cloudy towards the hole through the problem of external force effect in must squeezing into cloudy towards the hole with rubber stopper when having rubber stopper crown location in the limit operation.

Description

Rubber stopper removes limit device

Technical Field

The utility model relates to a rubber stopper production technical field specifically indicates a rubber stopper removes limit device.

Background

The medical rubber plug is a sealing part and a leading-out part for packaging medicines, and the total amount of injection rubber plugs, oral liquid rubber plugs, pre-encapsulation plugs and the like used in China every year is nearly 1000 hundred million. The production process of the medicinal rubber is basically the same at home and abroad, and the process flow is as follows: the method comprises the following steps of material matching, rubber mixing, sizing material preforming, vulcanization forming, edge removing, cleaning and packaging. Because of the huge yield of rubber plugs, domestic and foreign production enterprises all adopt the 'group mold vulcanization' method. The group mold vulcanization method is a method of opening hundreds or thousands of rubber plug mold cavities on a set of rubber plug vulcanization mold and then vulcanizing by adopting a large-tonnage large-hot-plate-area mold pressing vulcanizing machine; in order to facilitate the taking out of hundreds of rubber plugs from the vulcanization mold, a "technical rubber edge" with a thickness of about 0.7mm is specially designed during the design of the vulcanization mold, and as shown in fig. 1, a rubber sheet connected with a rubber plug 3 by the technical rubber edge 5 is called a vulcanized rubber sheet.

The rubber stopper 3 must be separated from the vulcanized rubber sheet because the process of 'group mold vulcanization' is adopted, so that the rubber stopper 3 and the process rubber edge 5 are separated from each other, the international method adopts a cold punching edge removing principle, and the production process is also called as an 'edge removing process'. As shown in fig. 3 and 4, the trimming process is powered by a punch press, and the trimming is realized by a male punching 1.2 and a female punching inner hole 2.1 on a trimming die. Therefore, the trimming process is a process of punching the rubber stopper 3 on the vulcanized rubber sheet into individual and complete rubber stoppers by using a punching principle.

The internationally-used vulcanized rubber sheet edge removing method is a mechanical punching edge removing method, and the principle of the method is realized by using an edge removing die arranged on a punch, the structure of the edge removing die is shown in figure 3, the edge removing die comprises a die frame, a male punch, a female punch, a spring 11, a pressing plate 10 and the like, the die frame is fixed on a base of the punch, and a male punch part is fixed on a sliding block moved by the punch through a die shank. The specific operation mode is as follows: an operator picks up a vulcanized rubber sheet to be edge-removed and consistent with the arrangement of an edge-removing die, the crown part of a rubber plug 3 of the vulcanized rubber sheet is downwards placed into a female punching inner hole 2.1, then a male punching 1.2 is punched down along with a punch press sliding block 13, a pressing plate 10 provided with pressure by a spring 11 firstly contacts the plug and presses the rubber plug 3 which does not enter the female punching inner hole 2.1 into the female punching inner hole 2.1, then the male punching 1.2 punches down to punch the rubber plug 3 off from the vulcanized rubber sheet, and the rubber plug 3 punched off from the vulcanized rubber sheet is blown down into a collecting container below the female punching inner hole 2.1 through compressed air provided in the male punching inner hole 1.1; then, the punch slide 13 with the male punch 1.2 ascends, the die is opened, and the operator takes out the technical glue edge by hand, and a punching cycle is completed.

It should be noted that: in order to ensure the dimensional accuracy and the attractiveness of the rubber plug 3, the diameter of the crown part of the rubber plug 3 and the diameter of the female punched inner hole 2.1 are in interference fit, so that the diameter of the crown part of the rubber plug 3 is larger than the diameter of the female punched inner hole 2.1, the crown part of the rubber plug 3 cannot naturally enter the female punched inner hole 2.1, and the rubber plug 3 is required to be extruded into the female punched inner hole 2.1 through external force; and because the shrinkage rates of rubber products are different, the rubber plug 3 on the vulcanized rubber sheet and the female punched inner hole 2.1 can generate certain errors due to shrinkage accumulation of the rubber product, namely the rubber plug 3 on the vulcanized rubber sheet and the female punched inner hole 2.1 have certain dislocation, the dislocation is solved by forcibly extruding the rubber plug into the female punched inner hole by utilizing the flexibility of rubber and the characteristic that the process rubber edge is thin and easy to deform, meanwhile, the factor is fully considered when the structure of the rubber plug 3 is designed, and a conical surface and a transition arc are designed in the height direction of the crown part so as to be beneficial to leading the crown part of the plug into the female punched inner hole 2.1 (see fig. 2 and 4).

The edge removing mode of the prior vulcanized rubber sheet is complex to operate, and the problem that the rubber plug is required to be extruded into the female punching inner hole under the action of external force when the crown part of the rubber plug is positioned and the problem that certain dislocation occurs between the rubber plug and the female punching inner hole due to the shrinkage and accumulation of rubber exist all the time, which is the root cause of quality problems of large edges, meat cutting and the like of the rubber plug.

Disclosure of Invention

An object of the utility model is to overcome the above-mentioned not enough, provide a rubber stopper removes limit device, must push into the problem of overcast towards the hole with the rubber stopper through exogenic action when having rubber stopper crown location in can solving the vulcanized rubber piece removes the limit operation and leads to rubber stopper and overcast towards the problem that the hole certain dislocation appears because of the rubber shrink accumulation.

The utility model discloses a solve above-mentioned technical problem, the technical scheme who adopts is: the utility model provides a rubber stopper removes limit device, is including being located the removal limit mould positive on the punch press slider and towards the piece and be located the negative board that dashes that removes limit mould positive below towards the piece, remove limit mould positive towards the neck location fit that the hole and rubber stopper were dashed to the positive of piece.

Preferably, a female punching inner hole is formed in the female punching plate, and a male punch of the male punching part of the edge removing die is matched with the female punching inner hole in a punching manner.

Preferably, an end effector is further arranged between the edge removing die male punching piece and the female punching plate, and a driving end of the end effector is connected with an output end of a manipulator or a robot.

Preferably, the upper surface and the lower surface of the end effector are both provided with a negative pressure adsorption disc, the negative pressure adsorption disc is provided with a plurality of vacuum suction nozzles, and the negative pressure adsorption disc is connected with a vacuum pumping pump through a suction pipeline; the end effector is also provided with a CCD camera which is connected with the manipulator or the robot control end through a microprocessor.

Preferably, the top of the male punch inner hole is also connected with a negative pressure air suction pipe and an air blowing pipe respectively, the negative pressure air suction pipe is connected with a vacuum pumping pump, and the air blowing pipe is connected with an air compressor.

The edge removing method of the edge removing device comprises the following steps:

step 1): inserting the neck part of the rubber plug in the vulcanized rubber sheet upwards into a male punching inner hole of a male punching piece of the trimming die;

step 2): after the punch press slide block moves downwards, the male punching part of the trimming die is driven to move downwards, and the male punching moves downwards and enters the female punching inner hole of the female punching plate;

step 3): the male punching and female punching inner hole punching are matched to separate the technical rubber edge from the rubber plug in the vulcanized rubber sheet, the rubber plug enters the female punching inner hole, and the technical rubber edge is left on the female punching plate.

Preferably, step 1) is specifically: the manipulator drive end effector moves to the vulcanized rubber sheet top of waiting to remove the limit, the back is opened to the evacuation pump of end effector, the negative pressure adsorption disc of end effector adsorbs the vulcanized rubber sheet and picks up, the end effector upset makes the neck of rubber stopper up in the vulcanized rubber sheet, the end effector moves the positive piece below that dashes of removing the limit mould, then upwards will vulcanize the neck top of rubber stopper in the rubber sheet and go into the positive downthehole that dashes, at this moment, the positive neck interference fit who dashes hole and rubber stopper, then the end effector moves down and leaves the positive piece below that dashes of removing the limit mould.

More preferably, the following operation process is further included after step 1) is completed: and starting a vacuum pump to enable the bottom of the male punching inner hole to generate negative pressure, and tightly sucking the vulcanized rubber sheet at the bottom of the male punching part of the trimming die.

More preferably, the step 3) is completed and the following operation process is also included: and starting the air compressor, blowing compressed gas into the male punching inner hole through the air blowing pipe by the air compressor, spraying the compressed gas from the bottom of the male punching inner hole, and blowing the rubber plug into the plug collector below from the female punching inner hole.

More preferably, the following operation process is further included after step 3) is completed: the mechanical arm drives the end picking device to return to the initial position to pick up vulcanized rubber sheets to be subjected to edge removal again, then the vulcanized rubber sheets are moved to the position below the edge removal die male punching piece, the neck of a rubber plug in the vulcanized rubber sheets is upwards inserted into the male punching inner hole of the edge removal die male punching piece according to the step 1), the mechanical arm drives the end picking device to move downwards to the position above the female punching plate, after a vacuum pumping pump of the end picking device is started, a negative pressure adsorption disc adsorbs and picks up process rubber edges remained on the female punching plate, and then the end picking device leaves the position above the female punching plate and releases the process rubber edges.

The utility model has the advantages that:

1. the utility model discloses a small diameter stopper footpath location, only need insert the positive towards hole with the neck of rubber stopper up promptly and can solve vulcanized sheet and remove the limit operation in, must push into the problem in the hole with the rubber stopper through exogenic action when having the location of rubber stopper crown and lead to the problem that certain dislocation appears in rubber stopper and the hole of dashing of cloudy towards because of the rubber shrink accumulation, fundamentally solves to remove limit in-process rubber stopper and appears the big limit and cut quality problems such as meat.

2. The neck part of the rubber plug and the male punched inner hole can be positioned in an interference fit mode, and can also be positioned in a negative pressure absorption vulcanized rubber sheet mode; the two positioning modes are simple and efficient to operate.

3. The utility model discloses parts such as clamp plate, spring have been saved to the device, have retrencied the structure, but have reached better effect, are favorable to the industrial popularization.

Drawings

FIG. 1 is a schematic view of the connection structure of a rubber stopper and a technical rubber edge in a vulcanized rubber sheet;

FIG. 2 is a schematic view of the rubber stopper;

FIG. 3 is a schematic structural diagram of a conventional edge removing device;

FIG. 4 is a schematic view of the structure of the conventional edge removing device in which a male punch, a male punch inner hole, a female punch inner hole and a rubber plug are matched;

FIG. 5 is a schematic structural view of a rubber stopper de-edging device according to the present invention before positioning a vulcanized rubber sheet;

FIG. 6 is a schematic structural view of a rubber stopper de-edging device of the present invention after positioning a vulcanized rubber sheet;

FIG. 7 is a schematic view of the combination of the male punch, the male punch inner hole, the female punch inner hole and the rubber stopper in FIG. 6;

FIG. 8 is a schematic structural diagram of a mechanical arm or a robot driving end effector for adsorbing and picking up vulcanized rubber sheets;

fig. 9 is a schematic view of the specific structure of the punching machine according to the present invention;

FIG. 10 is a comparison graph of the edge removing device of the present invention and a traditional edge removing device after edge removing;

in the figure, an edge removing die male punching part 1, a male punching inner hole 1.1, a male punching 1.2, a female punching plate 2, a female punching inner hole 2.1, a rubber plug 3, a neck part 3.1, a crown part 3.2, an end picking device 4, a technical rubber edge 5, a plug collector 6, a neck part positioning surface 7, a crown part positioning surface 8, a neck part leading-in surface 9, a pressing plate 10, a spring 11, a die shank 12, a punch press sliding block 13 and a die base 14.

Detailed Description

The invention is described in further detail below with reference to the figures and the embodiments.

As shown in fig. 5 to 9, the rubber stopper edge removing device comprises an edge removing die male punching part 1 positioned on a punch press sliding block 13 and a female punching plate 2 positioned below the edge removing die male punching part 1, wherein a male punching inner hole 1.1 of the edge removing die male punching part 1 is matched with a neck part 3.1 of a rubber stopper 3 in a positioning manner. In the embodiment, the trimming die male punching part 1 comprises a male punching part 1.2 and a male punching inner hole 1.1 in the male punching part, the trimming die male punching part 1 is arranged on a punch press sliding block 13 through a die shank 12, and a female punching plate 2 is fixedly arranged on a die base 14.

Preferably, a female punching inner hole 2.1 is formed in the female punching plate 2, and a male punching 1.2 of the edge removing die male punching part 1 is matched with the female punching inner hole 2.1 in a punching mode. In this embodiment, it is the outer diameter portion of the male punch 1.2 that is press fit with the inner diameter portion of the female punch bore 2.1 that punches the rubber stopper 3 off the technical rubber edge 5 in the vulcanizate.

Preferably, an end effector 4 is further arranged between the edge-removing die male punching part 1 and the female punching plate 2, and a driving end of the end effector 4 is connected with an output end of a manipulator or a robot. In this embodiment the robot arm or robot may control the movement of the end effector 4 such as translation, flipping, raising, lowering, etc.

Preferably, the upper surface and the lower surface of the end effector 4 are both provided with a negative pressure adsorption disc, the negative pressure adsorption disc is provided with a plurality of vacuum suction nozzles, and the negative pressure adsorption disc is connected with a vacuum pumping pump through a suction pipeline; the end effector 4 is also provided with a CCD camera which is connected with a manipulator or a robot control end through a microprocessor. In this embodiment, the CCD camera can identify and position the cured film to be edge-removed, and then send instructions to the robot arm or robot that directs the end effector 4 to pick up the cured film accurately, which in this embodiment may be a DSP model TMS320C 32.

Preferably, the top of the male punching inner hole 1.1 is also connected with a negative pressure air suction pipe and an air blowing pipe respectively, the negative pressure air suction pipe is connected with a vacuum pumping pump, and the air blowing pipe is connected with an air compressor. After the design, the bottom of the male punching inner hole 1.1 can form negative pressure to tightly suck vulcanized rubber sheets to be subjected to edge removal, and compressed air can be blown downwards to blow the separated rubber plug 3 into the plug collector 6 from the male punching inner hole 1.1.

step 1): the neck part 3.1 of the rubber plug 3 in the vulcanized rubber sheet is upwards inserted into a male punching inner hole 1.1 of a male punching piece 1 of the trimming die; the step 1) is specifically as follows: the mechanical arm drives the end pick-up 4 to move to the position above a vulcanized rubber sheet to be edge-removed, after a vacuum pump of the end pick-up 4 is started, a negative pressure adsorption disc of the end pick-up 4 adsorbs and picks up the vulcanized rubber sheet, the end pick-up 4 overturns to enable a neck 3.1 of a rubber plug 3 in the vulcanized rubber sheet to face upwards, the end pick-up 4 moves to the position below an edge-removing die male punching piece 1, then the neck 3.1 of the rubber plug 3 in the vulcanized rubber sheet is pushed upwards into the male punching inner hole 1.1, at the moment, the male punching inner hole 1.1 is in interference fit with the neck 3.1 of the rubber plug 3, and due to the inherent taper of the neck of the rubber plug 3, the neck of the rubber plug 3 is well guided into the male punching inner hole 1.1, and the end pick-up 4 can be pushed upwards for 1-3 times to ensure the hole entering effect, and then the end pick-up. Specifically, as shown in fig. 8, 9 vulcanized rubber sheets to be edge-removed are stacked at a designated stock with their crown portions facing upwards, the mechanical arm drives the end effector 4 to pick up corresponding vulcanized rubber sheets in an adsorbing manner in the order of A, B, C, D, E, F, G, H, I each time, for example, after the vulcanized rubber sheets in the area a are picked up in an adsorbing manner, the end effector 4 is driven to rotate to the area a2, then the end effector 4 is turned over 180 ° so that the neck portion 3.1 of the rubber plug 3 in the vulcanized rubber sheets faces upwards, then the end effector 4 moves into the punch press, i.e., below the edge-removing mold male punch 1, the end effector 4 first ascends after entering to push the neck portion 3.1 of the rubber plug 3 in the vulcanized rubber sheets into the male punch inner hole 1.1, and then descends to exit from the punch press;

after the step 1) is finished, the following operation processes are also included: and starting a vacuum pump to enable the bottom of the male punching inner hole 1.1 to generate negative pressure, and tightly sucking the vulcanized rubber sheet at the bottom of the male punching part 1 of the trimming die. Because neck 3.1 top and the positive hole 1.1 interference fit that dashes of rubber stopper 3, can prevent through the frictional force that interference fit produced that the vulcanized rubber piece from removing limit mould positive towards 1 bottom and dropping, if its frictional force is less, be not enough to fix a position and prevent that the vulcanized rubber piece from removing limit mould positive towards when 1 bottom drops, can open the evacuation pump for positive hole 1.1 bottom produces the negative pressure that dashes, will vulcanize the film and inhale tightly removing limit mould positive towards 1 bottom, also can adopt the negative pressure to adsorb the vulcanized rubber piece mode to realize fixing a position promptly.

Step 2): the punch press slide block 13 moves downwards to drive the edge removing die male punching part 1 to move downwards, and the male punching part 1.2 moves downwards and enters the female punching inner hole 2.1 of the female punching plate 2;

step 3): the male punching 1.2 and the female punching inner hole 2.1 are matched in a punching way to separate the technical rubber edge 5 and the rubber plug 3 in the vulcanized rubber sheet, the rubber plug 3 enters the female punching inner hole 2.1, and the technical rubber edge 5 is left on the female punching plate 2.

The following operation process is also included when the step 3) is finished: and starting the air compressor, blowing compressed gas into the male punching inner hole 1.1 through the air blowing pipe by the air compressor, spraying the compressed gas from the bottom of the male punching inner hole 1.1, and blowing the rubber plug 3 into the plug collector 6 below from the female punching inner hole 2.1.

After the step 3) is finished, the following operation processes are also included: the mechanical arm drives the end picking device 4 to return to the initial position to pick up vulcanized rubber sheets to be subjected to edge removal again, then the vulcanized rubber sheets are moved to the position below the edge removal die male punching part 1, the neck 3.1 of the rubber plug 3 in the vulcanized rubber sheets is upwards inserted into the male punching inner hole 1.1 of the edge removal die male punching part 1 according to the step 1, the mechanical arm drives the end picking device 4 to move downwards to the position above the female punching plate 2, after a vacuum pumping pump of the end picking device 4 is started, a negative pressure adsorption disc adsorbs and picks up process rubber edges 5 remained on the female punching plate 2, and then the end picking device 4 leaves the position above the female punching plate 2 and releases the process rubber edges 5.

In this embodiment, as shown in fig. 2, the diameter of the neck 3.1 of the rubber plug 3 is small, but the height of the neck positioning surface 7 is high, usually more than 2.5 times of the height of the crown positioning surface 8, and the neck structure itself has a neck lead-in surface 9 with large taper, long length, so as to solve the problem of "squeeze-in" caused by size interference in the original insertion of the crown 3.2 into the female punching hole 2.1 and the problem of "dislocation" caused by the accumulation surface of rubber shrinkage, and to omit the pressing plate 10 and the spring 11, the utility model discloses only need to insert the neck 3.1 of the rubber plug 3 into the male punching hole 1.1 upwards to solve all the above-mentioned problems.

In addition, when the male punched inner hole 1.1 carrying the vulcanized rubber sheet is punched, the crown part 3.2 of the rubber plug 3 is guided into the female punched inner hole 2.1 and is punched down due to the reserved taper and the circular arc transition of about 3 degrees of the crown part 3.2 of the rubber plug 3.

As shown in fig. 10, the left column is the effect picture after the limit is removed with the rubber stopper by the limit device of the utility model, and the middle column is the big limit quality problem that appears after the limit is removed with the rubber stopper by the traditional limit device, and the right column is the meat cutting quality problem that appears after the limit is removed with the rubber stopper by the traditional limit device.

The above embodiments are merely preferred technical solutions of the present invention, and should not be considered as limitations of the present invention, and the features in the embodiments and the examples in the present application may be arbitrarily combined with each other without conflict. The protection scope of the present invention shall be defined by the claims and the technical solutions described in the claims, including the technical features of the equivalent alternatives as the protection scope. Namely, equivalent alterations and modifications within the scope of the invention are also within the scope of the invention.

Claims

1. The utility model provides a rubber stopper removes limit device, is including being located the removal limit mould positive on punch press slider (13) towards piece (1) and being located the removal limit mould positive towards board (2) are dashed to the cloudy of piece (1) below, its characterized in that: the male punching inner hole (1.1) of the trimming die male punching piece (1) is matched with the neck (3.1) of the rubber plug (3) in a positioning way.

2. A rubber stopper de-edging device as defined in claim 1, wherein: the female punching plate (2) is internally provided with a female punching inner hole (2.1), and the male punching (1.2) of the trimming die male punching part (1) is matched with the female punching inner hole (2.1) in a punching way.

3. A rubber stopper de-edging device as defined in claim 1, wherein: an end effector (4) is further arranged between the edge removing die male punching piece (1) and the female punching plate (2), and a driving end of the end effector (4) is connected with an output end of a manipulator or a robot.

4. A rubber stopper de-edging device as defined in claim 3, wherein: the upper surface and the lower surface of the end effector (4) are respectively provided with a negative pressure adsorption disc, a plurality of vacuum suction nozzles are arranged on the negative pressure adsorption discs, and the negative pressure adsorption discs are connected with a vacuum pumping pump through a suction pipeline.

5. A rubber stopper de-edging device as defined in claim 3, wherein: and the end effector (4) is also provided with a CCD camera, and the CCD camera is connected with the manipulator or the robot control end through a microprocessor.

6. A rubber stopper de-edging device as defined in claim 1, wherein: the top of the male punching inner hole (1.1) is also respectively connected with a negative pressure air suction pipe and an air blowing pipe, the negative pressure air suction pipe is connected with a vacuum pumping pump, and the air blowing pipe is connected with an air compressor.