CN214926535U

CN214926535U - Injection molding head cleaning equipment

Info

Publication number: CN214926535U
Application number: CN202120900198.4U
Authority: CN
Inventors: 童杰; 张健; 周均; 黄永红
Original assignee: Chongqing Haosite Auto Parts Co ltd
Current assignee: Chongqing Haosite Auto Parts Co ltd
Priority date: 2021-04-28
Filing date: 2021-04-28
Publication date: 2021-11-30
Anticipated expiration: 2031-04-28

Abstract

The utility model provides a first clean-up equipment moulds plastics relates to first clean-up equipment technical field of moulding plastics. It has solved the current mode that adopts the air gun to blow when clearing up the head of moulding plastics and has cleared up the poor problem of effect to the clout. The injection molding head cleaning equipment comprises a rack, wherein the rack is provided with a clamp for clamping an injection molding head, a power assembly for opening and closing the clamp and a thimble driven by a linear pushing assembly, and the thimble is coaxial with an injection molding hole of the injection molding head clamped in the clamp. The mode that blows through the air gun with the tradition changes the mode on top of the thimble into, and the thimble can directly act on the clout, can effectively make clout and the first inner wall separation of moulding plastics, and the clearance is effectual, and structural design is reasonable moreover, can realize the quick clamping of the head of moulding plastics, and is efficient.

Description

Injection molding head cleaning equipment

Technical Field

The utility model relates to a first cleaning equipment technical field, especially a cleaning equipment of headrest head of moulding plastics.

Background

An injection molding machine, also known as an injection molding machine or an injection molding machine, is a main molding device for molding thermoplastic plastics or thermosetting plastics into plastic products of various shapes by using a plastic molding mold. The injection molding machine can heat the plastic, apply high pressure to the molten plastic, and inject it to fill the mold cavity. The injection head is a port for outputting raw materials of the injection molding machine, and the raw materials output by the injection molding machine are generally thermoplastic, so that the injection head is easy to condense and block, and the injection head needs to be cleaned periodically in order to recycle the injection head.

The tradition adopts the mode that the air gun blows to clear up the clout in annotating the stub bar, according to the raw materials of moulding plastics to smooth surface bonding insecure, to the very firm characteristic of mat surface bonding, new notes stub bar inner wall is more smooth, and the air gun can blow off the clout, after using a period, annotates stub bar inner wall wearing and tearing, and the clout in some notes stub bars can't blow off with the air gun.

SUMMERY OF THE UTILITY MODEL

The utility model aims at having the above-mentioned problem to current technique, provided a clearance effectual first clean-up equipment of moulding plastics.

The purpose of the utility model can be realized by the following technical proposal:

injection molding head cleaning equipment comprises a rack, wherein the rack is provided with a clamp for clamping an injection molding head, a power assembly for opening and closing the clamp and a thimble driven by a linear pushing assembly, and the thimble is coaxial with an injection molding hole of the injection molding head clamped in the clamp.

The overhead injection molding hole that has the link up setting of moulding plastics, the external diameter of thimble slightly is less than the aperture in hole of moulding plastics. After the injection molding machine is used for a period of time, residual materials remain in the injection molding hole and need to be cleaned. During the clearance, power component makes anchor clamps part, will mould plastics partially or all put into anchor clamps, and power component makes the anchor clamps closure afterwards will mould plastics the head centre gripping, realizes the axial and the radial positioning of the head of moulding plastics, starts sharp propelling movement subassembly, makes thimble axial motion and stretch into the hole of moulding plastics, will mould plastics downthehole clout release, and the clearance is effectual.

In the above-mentioned first clean-up equipment of moulding plastics, anchor clamps include first clamping body and second clamping body, first constant head tank has on the first clamping body, second constant head tank has on the second clamping body, works as when anchor clamps lock first constant head tank and second constant head tank constitute with the first complex centre gripping chamber of moulding plastics. During the centre gripping, power component makes first clamping body and second clamping body part, will mould plastics the head and put between first constant head tank and second constant head tank, and power component makes the anchor clamps closure afterwards will mould plastics the head centre gripping, realizes axial and radial location.

In the above-mentioned first clean-up equipment of moulding plastics, first holding body is two, a centre gripping chamber has respectively between second holding body and the two first holding bodies, two the axis in centre gripping chamber is parallel, the thimble be two and with two centre gripping chamber one-to-ones, the centre gripping is coaxial at the first hole of moulding plastics of centre gripping intracavity and the thimble that corresponds the setting with it.

Because two centre gripping chambeies have, can the two heads of moulding plastics of centre gripping simultaneously to the clout of its inside is cleared up through the thimble that sets up with it, can raise the efficiency.

In the injection molding head cleaning equipment, the rack is fixedly provided with the mounting seat, the mounting seat is provided with the mounting opening matched with the injection molding head clamped in the clamp, and when the injection molding head clamped in the clamp is positioned in the mounting opening, the limiting blocking edge on the injection molding head is arranged to abut against one side, close to the clamp, of the mounting seat.

The rear end of the injection molding head is provided with a cylindrical rod part, the clamping cavity is cylindrical, the rod part is matched with the clamping cavity, a feeding hole which is coaxially communicated with the injection molding hole is coaxially arranged in the rod part, the injection molding hole is conical, the aperture of one end, close to the feeding hole, of the injection molding hole is smaller than that of one end, far away from the feeding hole, of the injection molding hole, and the outer diameter of the ejector pin is slightly smaller than that of the feeding hole. The clamping cavity can be used for radially positioning the injection molding head, and the coaxiality of the feeding hole and the ejector pin is guaranteed. In order to realize the axial positioning of the injection molding head, the clamp is arranged between the linear pushing assembly and the mounting seat, the mounting seat supports the injection molding head, and the mounting seat is matched with the limiting baffle edge to axially limit the injection molding head.

In the above injection head cleaning apparatus, the second holding body is fixed to the frame. When the power assembly acts, the first clamping body is driven to be close to or far away from the second clamping body.

In the cleaning equipment for the injection molding head, the power assembly is a pneumatic quick clamp arranged on the rack, and the movable end of the pneumatic quick clamp is fixedly connected with the first clamping body. The pneumatic quick clamp is also called a pneumatic quick clamp, the working principle of the pneumatic quick clamp is the same as that of an air cylinder or a hydraulic cylinder, and when the movable end of the pneumatic quick clamp extends out, the movable end of the pneumatic quick clamp can drive the first clamping body to be close to the second clamping body.

In the above-mentioned first clean-up equipment of moulding plastics, at least two guide posts that are parallel to each other have been linked firmly on the second clamping body, first clamping body and guide post sliding fit, the department of linking firmly of the expansion end of pneumatic quick clamp and first clamping body is located between at least two guide posts.

At least two guide posts are located the same side of second clamping body, have a plurality of guiding holes that set up with the guide post one-to-one on first clamping body, and the guiding hole is with the guide post sliding fit who sets up rather than corresponding, and guide post axial motion can be followed to first clamping body promptly, and power component acts on the axial extension of the direction of force along the guide post on first clamping body, and the axis of thimble is perpendicular with the axis of guide post. Due to the guide post, the matching precision of the first clamping body and the second clamping body is improved, and a better clamping effect is achieved.

In the injection molding head cleaning device, the linear pushing assembly is an air cylinder.

Compared with the prior art, this first clean-up equipment of moulding plastics has following advantage:

the traditional mode of blowing through an air gun is changed into a mode of pushing up a thimble, the thimble can directly act on the excess material, the excess material can be effectively separated from the inner wall of the injection molding head, and the cleaning effect is good; structural design is reasonable, can realize moulding plastics quick clamping of head, and is efficient.

Drawings

Fig. 1 is a schematic structural view of the clamp in an open state.

Fig. 2 is a schematic structural view of the clamp in a closed state.

Fig. 3 is a schematic structural view of the clamp provided by the utility model.

Fig. 4 is a schematic structural diagram of the mounting base provided by the utility model.

In the figure, a, an injection molding head; b. injection molding holes; c. a limiting blocking edge; d. a rod portion; 1. a frame; 2. a thimble; 31. a first clamping body; 311. a first positioning groove; 32. a second clamping body; 321. a second positioning groove; 33. a guide post; 4. a mounting seat; 41. an installation port; 5. pneumatic quick clamping; 6. a cylinder; 7. a protective cover.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

Example one

A cleaning device for an injection molding head, referring to fig. 1 and 2, comprises a frame 1 with a working plane at the top, wherein a clamp used for clamping the injection molding head a is arranged on the working plane of the frame 1, the clamp is driven by a power assembly, namely the clamp can realize opening and closing actions under the action of the power assembly and is used for clamping or loosening the injection molding head a. And the working plane of the frame 1 is also provided with a thimble 2 driven by the linear pushing component, and the thimble 2 is coaxial with an injection molding hole b of an injection molding head a clamped in the clamp.

The injection head a is internally provided with an injection hole b which is communicated with the injection head a, and the outer diameter of the thimble 2 is slightly smaller than the aperture of the injection hole b. After the injection molding hole b is used for a period of time, residual materials are left in the injection molding hole b and need to be cleaned. During the clearance, power component makes anchor clamps part, will mould plastics first a and put into anchor clamps, and power component makes the anchor clamps closure afterwards will mould plastics first a centre gripping, realizes the axial and radial positioning of first a of moulding plastics, starts sharp push assembly, makes 2 axial motion of thimble and stretch into injection hole b, push out the clout in the injection hole b, and the clearance is effectual.

In this embodiment, anchor clamps include two symmetry and articulated rods that set up in middle part, and anchor clamps are scissors form promptly, have the chuck at the front end of articulated rod, and power component acts on the rear end of two articulated rods. When power component moved, can drive the hinge bar and rotate around the pin joint to drive two chucks and be close to or keep away from, realize moulding plastics the clamping or the loosening of head a. The hinge point of the hinge rod is a hinge shaft, and the hinge shaft is fixed on the frame 1 in order to prevent the clamp from moving.

The power assembly can be an air cylinder, a hydraulic cylinder or other linear driving mechanisms, one end of the power assembly acts on the rear end of one of the hinged rods, and the other end of the power assembly acts on the rear end of the other hinged rod. When the cylinder or the hydraulic cylinder or other linear driving mechanisms act, the hinge rod is driven to rotate around the hinge shaft, and the opening and closing of the clamp are realized.

In order to prevent the clamping heads from damaging the injection head a, a first groove can be formed in one of the clamping heads, a second groove opposite to the first groove is formed in the other clamping head, and the first groove and the second groove are buckled to form a clamping cavity matched with the shape of the injection head a. The clamped injection head a is positioned in the clamping cavity and cannot be damaged by clamping. In order to push out the excess materials conveniently, the two ends of the injection molding hole b are not blocked by the clamp.

In this embodiment, the linear pushing assembly may be an air cylinder 6, a hydraulic cylinder, or other linear driving members, such as an electric push rod, and a protective cover 7 may be disposed outside the air cylinder 6.

Example two

The structure principle in this embodiment is substantially the same as that in the first embodiment, except that the clamp includes a first clamping body 31 and a second clamping body 32, the first clamping body 31 and the second clamping body 32 are hinged together, the first clamping body 31 is driven by one driving assembly, and the second clamping body 32 is driven by the other driving assembly.

In order to prevent the chuck from damaging the injection head a, a first positioning groove 311 is formed on one side of the first clamping body 31 close to the second clamping body 32, a second positioning groove 321 is formed on one side of the second clamping body 32 close to the first clamping body 31, and when the clamp is fastened, the first positioning groove 311 and the second positioning groove 321 form a clamping cavity matched with the injection head a.

EXAMPLE III

The structural principle in this embodiment is basically the same as that in the second embodiment, except that the clamp includes a first clamping body 31 and a second clamping body 32, the first clamping body 31 and the second clamping body 32 are hinged together, the second clamping body 32 is fixed on the rack 1, and the first clamping body 31 is driven by the driving assembly. Compared with the third embodiment, only one driving assembly is adopted, and the cost is reduced on the premise of ensuring the normal opening and closing of the clamp.

Example four

The structure principle in this embodiment is substantially the same as that in the first embodiment, except that the clamp includes a first clamping body 31 and a second clamping body 32, the first clamping body 31 can move linearly relative to the second clamping body 32, the first clamping body 31 is driven by one driving assembly, and the second clamping body 32 is driven by the other driving assembly. When the two driving assemblies act, the first clamping body 31 and the second clamping body 32 are driven to be close to or far away from each other, so that the opening and closing of the clamp are realized.

In order to prevent the injection head a from being damaged by the clamping head, as shown in fig. 3, a first positioning groove 311 is formed on a side of the first clamping body 31 close to the second clamping body 32, a second positioning groove 321 is formed on a side of the second clamping body 32 close to the first clamping body 31, and when the clamp is fastened, the first positioning groove 311 and the second positioning groove 321 form a clamping cavity matched with the injection head a.

In this case, at least two parallel guiding posts 33 may be fixedly connected to the second clamping body 32, the first clamping body 31 is slidably engaged with the guiding posts 33, and the fixed connection position between the movable end of the pneumatic quick clamp 5 and the first clamping body 31 is located between the at least two guiding posts 33.

At least two guide posts 33 are located on the same side of the second clamping body 32, a plurality of guide holes are formed in the first clamping body 31 and are arranged in one-to-one correspondence with the guide posts 33, the guide holes are in sliding fit with the guide posts 33 arranged correspondingly, namely, the first clamping body 31 can move axially along the guide posts 33, the direction of the force exerted on the first clamping body 31 by the power assembly extends axially along the guide posts 33, and the axis of the thimble 2 is perpendicular to the axis of the guide posts 33. Due to the arrangement of the guide column 33, the matching precision of the first clamping body 31 and the second clamping body 32 is improved, and a better clamping effect is realized.

EXAMPLE five

The structural principle in this embodiment is substantially the same as that in the fourth embodiment, except that the clamp includes a first clamping body 31 and a second clamping body 32, the first clamping body 31 can move linearly relative to the second clamping body 32, the second clamping body 32 is fixed on the rack 1, and the first clamping body 31 is driven by the driving assembly. Compared with the fourth embodiment, the fifth embodiment only adopts one driving assembly, and the cost is reduced on the premise of ensuring the normal opening and closing of the clamp.

EXAMPLE six

The structural principle in this embodiment is the same basically as the structural principle of embodiment one, and the difference lies in, as shown in fig. 4, the rear end of head a of moulding plastics has and is cylindric pole portion d, and the centre gripping chamber is cylindricly, and pole portion d and centre gripping chamber cooperation, the coaxial porthole that communicates with the hole b of moulding plastics that is equipped with in pole portion d, and the hole b of moulding plastics is coniform, and the aperture that the hole b of moulding plastics is close to porthole one end is less than its aperture of keeping away from porthole one end, and the external diameter of thimble 2 slightly is less than the aperture of porthole.

In order to axially position the injection head a, as shown in fig. 4, a mounting seat 4 is fixed on the frame 1, the mounting seat 4 has a mounting opening 41 matched with the injection head a clamped in the fixture, and when the injection head a clamped in the fixture is located in the mounting opening 41, a limit stop edge c arranged on the injection head a abuts against one side of the mounting seat 4 close to the fixture.

The clamping cavity can be used for radially positioning the injection molding head a, and the coaxiality of the feeding hole and the ejector pin 2 is guaranteed. Establish anchor clamps between sharp propelling movement subassembly and mount pad 4, mount pad 4 supports injection head a to it is spacing to carry out the axial along c to injection head a to cooperate spacing fender.

EXAMPLE seven

The structural principle in this embodiment is substantially the same as that in the sixth embodiment, and the difference lies in that, as shown in fig. 1 and fig. 2, the second holding body 32 is fixed on the rack 1, the first holding bodies 31 are two and are respectively located on the left and right sides of the second holding body 32, a holding cavity is respectively provided between the second holding body 32 and the two first holding bodies 31, the axes of the two holding cavities are parallel, the ejector pins 2 are two and correspond to the two holding cavities one by one, the ejector pins 2 are respectively driven by different linear pushing assemblies, and the two linear pushing assemblies can work independently. The injection hole b of the injection head a clamped in the clamping cavity is coaxial with the thimble 2 correspondingly arranged with the injection hole b. Because two centre gripping chambeies have, can the centre gripping simultaneously two first a of moulding plastics to through the thimble 2 that sets up with it to clear up its inside clout, can raise the efficiency.

As shown in fig. 1-3, a mounting seat 4 is fixed on the frame 1, the mounting seat 4 has two mounting ports 41 that are matched with the injection molding head a clamped in the fixture, the two mounting ports 41 are respectively in one-to-one correspondence with the two clamping cavities, and when the injection molding head a clamped in the fixture is located in the mounting port 41, a limit stop edge c arranged on the injection molding head a abuts against one side of the mounting seat 4 close to the fixture.

In this embodiment, the power assembly is the pneumatic quick clamp 5 arranged on the frame 1, and the movable end of the pneumatic quick clamp 5 is fixedly connected with the first clamping body 31. When the movable end of the pneumatic quick clamp 5 extends out, the first clamping body 31 can be driven to approach the second clamping body 32. One of the pneumatic quick clamps 5 is located at the left side of one of the first clamping bodies 31, and the other pneumatic quick clamp 5 is located at the right side of the other first clamping body 31.

As shown in fig. 1, 2 and 3, the left side of the second clamping body 32 is fixedly connected with two parallel guide posts 33, the right side of the second clamping body is also fixedly connected with two parallel guide posts 33, the first clamping body 31 is in sliding fit with the guide posts 33, the fixed connection position between the movable end of the pneumatic quick clamp 5 on the left side and the first clamping body 31 on the left side is located between the two guide posts 33 on the left side of the second clamping body 32, and the fixed connection position between the movable end of the pneumatic quick clamp 5 on the right side and the first clamping body 31 on the right side is located between the two guide posts 33 on the right side of the second clamping body 32.

The two guide posts 33 are located on the same side of the second clamping body 32, the first clamping body 31 is provided with a plurality of guide holes which are arranged corresponding to the guide posts 33 one by one, the guide holes are in sliding fit with the guide posts 33 arranged corresponding to the guide holes, namely, the first clamping body 31 can move along the axial direction of the guide posts 33, the direction of the force applied by the power assembly on the first clamping body 31 extends along the axial direction of the guide posts 33, and the axis of the thimble 2 is perpendicular to the axis of the guide posts 33. Due to the arrangement of the guide column 33, the matching precision of the first clamping body 31 and the second clamping body 32 is improved, and a better clamping effect is realized.

In other embodiments, the number of guide posts 33 may be 3 or 4.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a first clean-up equipment moulds plastics, includes frame (1), its characterized in that, be equipped with the anchor clamps that are used for the centre gripping to mould plastics first (a), be used for making the power component that anchor clamps opened and shut and by sharp propelling movement subassembly driven thimble (2) in frame (1), thimble (2) are coaxial with the hole (b) of moulding plastics of the first (a) of moulding plastics of centre gripping in anchor clamps.

2. An injection head cleaning device according to claim 1, characterized in that the clamp comprises a first clamping body (31) and a second clamping body (32), the first clamping body (31) having a first positioning slot (311) thereon and the second clamping body (32) having a second positioning slot (321) thereon, the first positioning slot (311) and the second positioning slot (321) constituting a clamping cavity cooperating with the injection head (a) when the clamp is engaged.

3. The injection molding head cleaning device according to claim 2, wherein the number of the first clamping bodies (31) is two, the second clamping body (32) and the two first clamping bodies (31) have a clamping cavity therebetween, the axes of the two clamping cavities are parallel, the number of the ejector pins (2) is two and corresponds to the two clamping cavities, and the injection hole (b) of the injection molding head (a) clamped in the clamping cavity is coaxial with the ejector pin (2) arranged corresponding to the injection hole.

4. An injection head cleaning device according to claim 2 or 3, characterized in that a mounting seat (4) is fixed on the machine frame (1), the mounting seat (4) is provided with a mounting opening (41) matched with the injection head (a) clamped in the clamp, and a limit stop edge (c) arranged on the injection head (a) abuts against one side of the mounting seat (4) close to the clamp when the injection head (a) clamped in the clamp is positioned in the mounting opening (41).

5. A cleaning device for an injection head according to claim 2 or 3, characterized in that the second clamping body (32) is fixed to the machine frame (1).

6. An injection head cleaning device according to claim 5, characterized in that the power assembly is a pneumatic quick clamp (5) arranged on the frame (1), and the movable end of the pneumatic quick clamp (5) is fixedly connected with the first clamping body (31).

7. An injection head cleaning device according to claim 6, characterized in that the second clamping body (32) is fixedly connected with at least two guide posts (33) which are parallel to each other, the first clamping body (31) is in sliding fit with the guide posts (33), and the fixed connection position of the movable end of the pneumatic quick clamp (5) and the first clamping body (31) is located between the at least two guide posts (33).

8. An injection head cleaning apparatus according to claim 1, 2 or 3, wherein the linear pushing assembly is a cylinder (6).