CN212352768U

CN212352768U - Injection molding stub bar resection device

Info

Publication number: CN212352768U
Application number: CN201922228149.6U
Authority: CN
Inventors: 李景翰
Original assignee: Kushan Dachuan Plastic Cement Industry Co ltd
Current assignee: Kushan Dachuan Plastic Cement Industry Co ltd
Priority date: 2019-12-13
Filing date: 2019-12-13
Publication date: 2021-01-15
Anticipated expiration: 2029-12-13

Abstract

The utility model discloses an injection molding stub bar resection device, its locating plate and the corresponding setting including the location stub bar are in the cutter mechanism of locating plate top, cutter mechanism include drive assembly and with the second mounting panel that drive assembly meets, cutter mechanism is still including dismantling to fix the third mounting panel of second mounting panel below and installing cutter on the third mounting panel, still install the regulation on the third mounting panel the adjusting part of cutter position, the adjusting part includes the slide rail and wears to establish retaining member on the slide rail, cutter sliding fit in and pass through in the slide rail the retaining member is replaced and is pressed the locking. The utility model discloses be equipped with adjusting device between stub bar resection device's cutter and the third mounting panel, adjusting device can adjust the position of cutter on the third mounting panel, makes things convenient for the accurate alignment of cutter in the stub bar top, improves and cuts off the quality.

Description

Injection molding stub bar resection device

Technical Field

The utility model relates to an injection molding processing technology field, in particular to injection molding stub bar resection device.

Background

In the injection production of one mould with two cavities, the plastic product is produced by melting the plastic material with an electric heater, then injecting the melted plastic material into the two cavities of the forming mould, cooling for a period of time, opening the forming mould, and taking out the formed product from the cavity. However, the plastic injection molding machine opens the molding die, and an unnecessary stub is left between two molded products taken out from the cavity. In order to make the appearance of the product good, the excess stub bar needs to be cut off.

The existing mode is to remove the unnecessary stub bar through manual operation, which not only needs to spend much labor cost, but also has poor efficiency, thereby causing the problem that the production cost can not be effectively reduced, and especially when the stub bar is removed by the manual operation mode, the qualification rate of the product is not easy to be effectively controlled due to human factors.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to the above-mentioned defect among the prior art, provide an injection molding stub bar resection device, conveniently change and adjustment cutter position.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme: the utility model provides an injection molding stub bar resection device for the stub bar of excision connection on the injection molding, stub bar resection device is including the location the locating plate of stub bar and corresponding the setting are in the cutter mechanism of locating plate top, cutter mechanism include drive assembly and with the second mounting panel that drive assembly meets, cutter mechanism is still including dismantling to fix the third mounting panel of second mounting panel below and installing cutter on the third mounting panel, still install the regulation on the third mounting panel the adjusting part of cutter position, the adjusting part includes the slide rail and wears to establish retaining member on the slide rail, cutter sliding fit is in and pass through in the slide rail the retaining member supports to press the locking.

Furthermore, the utility model discloses still provide following subsidiary technical scheme: the cross section of the sliding rail is in a convex shape, the two sides of the cutter are provided with matching parts protruding outwards, and the matching parts can be embedded in the sliding grooves in a sliding mode.

The locking piece is in threaded connection with the side face of the sliding rail and is abutted against the side face of the cutter.

The injection molding still includes the injection molding body, the stub bar is located between the injection molding body, the locating plate includes two imitative shape holes and connects constant head tank between the imitative shape hole, the stub bar inlays to be established in the constant head tank, the injection molding body receives the stub bar is spacing and fix a position the profile modeling is downthehole, and is a plurality of the cutter corresponds the setting and is in imitative shape hole with constant head tank intersection top.

The side that the profile modeling hole meets with the constant head tank is the locating surface, the locating surface with injection molding body looks butt.

And a position avoiding groove which avoids the contact between the cutter and the positioning plate is formed at the intersection of the profiling hole and the positioning groove.

The profiling hole is of a through hole structure, and the stub bar supports the injection molding body.

Keep away the supporting shoe that the position inslot was equipped with the L type, the supporting shoe is including being located the downthehole supporting part of profile modeling, the supporting part supports the injection molding body.

The stub bar cutting device further comprises a supporting table provided with the positioning plate, and an opening communicated with the profiling hole is correspondingly formed in the supporting table.

The supporting platform is further provided with a channel communicated with the opening, and the channel inclines outwards the supporting platform.

Compared with the prior art, the utility model has the advantages of: 1. the adjusting device is arranged between the cutter and the third mounting plate of the stub bar cutting device, and the position of the cutter on the third mounting plate can be adjusted by the adjusting device, so that the cutter can be conveniently and accurately aligned above the stub bar, and the stub bar cutting quality is improved;

2. the utility model discloses stub bar resection device's profile modeling hole adopts the through-hole structure, and profile modeling hole below is connected with the passageway, and the injection molding can flow resection device along the passageway after the stub bar resection, has practiced thrift the time of taking off the injection molding from resection device after amputating at every turn, improves work efficiency.

Drawings

Fig. 1 is a schematic perspective view of the stub bar cutting device of the present invention.

Fig. 2 is a front view of the stub bar removal device of fig. 1.

Fig. 3 is an installation schematic diagram of the cutter on the stub bar cutting device of the utility model.

Fig. 4 is a schematic structural view of the upper cutter of the stub bar cutting device of the present invention.

Fig. 5 is a schematic structural diagram of the positioning plate of the stub bar cutting device of the present invention.

Fig. 6 is a partial enlarged view of fig. 5 at the location of plate a.

FIG. 7 is a schematic view showing a state of the retainer plate after the injection-molded article is placed.

Fig. 8 is a schematic perspective view of fig. 7.

Detailed Description

The following non-limiting detailed description of the present invention is provided in connection with the preferred embodiments and accompanying drawings.

As shown in fig. 1 and fig. 2, the device for cutting off the stub bar of an injection molded part according to a preferred embodiment of the present application includes a supporting platform 1, a positioning plate 3 fixed on the supporting platform 1, and a cutter mechanism 2 correspondingly disposed above the positioning plate 3.

The cutter mechanism 2 comprises a driving component and a cutter component, wherein the driving component comprises guide rods 211 fixed around the support table 1, a first mounting plate 212 fixed at the upper end of the guide rods 211, and a driving part and a control box 214 arranged on the first mounting plate 212. The driving member is specifically a cylinder 213, and the cylinder 213 is disposed along a vertical direction and includes a cylinder rod 213a and a mounting plate 213b mounted at an end of the cylinder rod 213 a. A control circuit (not shown) for controlling the cylinder 213 to move up and down is provided in the control box 214.

The cutter assembly comprises a second mounting plate 221 arranged on the guide rod 211 in a sliding penetrating mode and a plurality of cutters 222 arranged below the second mounting plate 221, the second mounting plate 221 is located below the first mounting plate 32, the mounting disc 213b is fixedly connected with the second mounting plate 221, and the second mounting plate 221 is driven to move up and down along the guide rod 211 so that the cutters 222 can move up and down. As shown in fig. 5, the injection molding part to be cut off comprises injection molding part bodies 4a and 4b and a stub bar 4d connected between the injection molding part bodies 4a and 4b, and a plurality of cutting knives 222 are correspondingly arranged above the joint 4c of the stub bar and the injection molding part bodies 4a and 4b, so that the stub bar is cut off from the injection molding part bodies 4a and 4 b.

The cutter assembly further includes a third mounting plate 223 detachably fixed below the second mounting plate 221, and a plurality of cutters 222 are correspondingly mounted on the third mounting plate 223. Because the second mounting plate 221 is slidably sleeved on the guide rod 211, the dismounting is inconvenient, and by additionally arranging the third mounting plate 223 mounted on the second mounting plate 221, when other types of injection-molded parts need to be subjected to material cutting, the third mounting plate 223 can be conveniently dismounted and the cutter 222 can be conveniently replaced.

With further reference to fig. 3 and 4, an adjusting assembly 23 for adjusting the position of the cutting knife 222 is mounted on the third mounting plate 223, and the adjusting assembly 23 includes a slide rail 231 and a locking member 232 disposed on the slide rail 231. The slide rail 231 is detachably mounted on the third mounting plate 223 by bolts, the slide rail 231 includes a slide groove 231a, and the cutter 222 is slidably fitted in the slide groove 231 a. The locking member 232 is disposed through the side of the sliding rail 231 and abuts against the side of the cutting knife 222. The locker 232 is embodied as a locking bolt for locking or unlocking the cutter 222 by adjusting the position between the locker 232 and the cutter 222. Preferably, the sliding slot 231a has a convex cross section, the cutting knife 222 is provided with outwardly protruding mating portions 222a at two sides thereof, and the mating portions 222a are slidably inserted into the sliding slot 231a, so as to ensure the tight fit between the cutting knife 222 and the sliding rail 231. Through setting up adjusting device 23, can make things convenient for cutter 222 to adjust and aim at stub bar 4d position, improve stub bar 4d and cut off quality.

With further reference to fig. 5 to 8, the positioning plate 3 comprises a contour hole 31 for receiving the injection molded body 4a, 4b and a positioning slot 32 for receiving the stub bar. The number of the profiling holes 31 is two and the profiling holes are arranged on two sides of the positioning plate 3. The outer contour of the injection-molded body 4a, 4b is similar to the inner contour of the profiling bore 31. Preferably, the inner contour of the profiling bore 31 is larger than the outer contour of the injection-molded part body 4a, 4b, so that the injection-molded part can be easily handled. The two profile modeling holes 31 comprise opposite positioning surfaces 311, the positioning surfaces 311 are profile modeling hole side surfaces connected with the positioning grooves 32, each profile modeling hole 31 is provided with at least one positioning surface 311, and a plurality of profile modeling holes can be selectively arranged according to different shapes of actual injection molding parts. The positioning slot 32 is connected between the two contour holes 31 and has the same direction and contour as the material head 4 d. When the injection molding part is placed in, the stub bar 4d is embedded in the positioning groove 32, the injection molding part bodies 4a and 4b are arranged in the profiling hole 31, the side surfaces of the injection molding part bodies 4a and 4b are limited by the stub bar 4d and tightly abut against the positioning surface 311 of the profiling hole 31, and the injection molding part is positioned. The connection 4c of the injection molding part bodies 4a and 4b and the stub bar 4d is located at the intersection of the profiling hole 31 and the positioning groove 32, and the plurality of cutters 222 are correspondingly arranged above the intersection, so that the stub bar 4d is cut off from the injection molding part bodies 4a and 4 b.

Preferably, in order to facilitate the cutter 222 not to touch the positioning plate 3 when cutting off the stub bar, thereby causing the damage of the cutter 222, the positioning plate 3 is provided with a avoiding groove 33 with a depth deeper than that of the positioning groove 32 at the joint 4c of the stub bar and the injection molding part body 4a, 4b, and the avoiding groove 33 is used for avoiding the cutter 222 from directly contacting the positioning plate 3 and smoothly cutting off the stub bar 4 d.

Preferably, the profiling hole 31 is in the form of a through hole, and the injection molded body 4a, 4b is supported and positioned in the profiling hole 31 by means of a stub bar. As shown in figure 2, the support table 1 is provided with an opening 11 and a channel 12 communicated with the opening at the position corresponding to the profiling hole 31, and the channel 12 inclines outwards from the support table 1, so that the injection molding part bodies 4a and 4b are separated from the support of the stub bar 4d and fall into the channel 12 through the profiling hole 31 after the stub bar 4d is cut off by the cutter mechanism 2, and leave the support table 1 along the channel 12, thereby saving the time of manually taking the injection molding part bodies and the stub bar off from the positioning plate 3 respectively after the stub bar 4d is cut off at each time and improving the working efficiency. Preferably, a collecting frame (not shown) can be correspondingly arranged below the tail end of the channel 12, and the injection molded part bodies after the stub bars are cut off each time can be collected in the collecting frame in a centralized manner, so that the efficiency is further improved.

Because the stub bar 4d is provided with the avoiding groove 33 at the joint 4c of the injection molding part bodies 4a and 4b, when the profiling hole 31 adopts a through hole form, the joint 4c of the cutter 222 is not supported in the cutting process, the cutting quality of the cutter 222 is poor, in order to avoid the situation, an L-shaped supporting block 34 is arranged in the avoiding groove 33, the supporting block 34 comprises a supporting part 341 extending into the profiling hole 31, and the supporting part 341 is used for supporting the bottoms of the injection molding part bodies 4a and 4 b. In order to make the injection molding bodies 4a and 4b fall out of the contour hole 31 smoothly, the width of the supporting portion 241 is limited to a width that does not affect the falling of the injection molding bodies 4a and 4b out of the contour hole 31. The connection part 4c of the injection molding part bodies 4a and 4b and the stub bar 4d is supported by the supporting part 341 in the cutting process of the cutting knife 222, so that the cutting knife 222 can smoothly cut the stub bar 4 d.

Further, in order to improve excision efficiency, two other opposite sides of locating plate 2 still are equipped with imitative shape hole 31 ' and constant head tank 32 ', and imitative shape hole 31 ' and constant head tank 32 ' can be set to the structure of another kind of injection molding 4 ' of cooperation, and concrete structure is similar with the structure of above-mentioned imitative shape hole 31 and constant head tank 32, the utility model discloses no longer describe herein.

Further, a safety grating 5 is further arranged on the supporting table 1, the safety grating 5 is located on one side of the material taking and placing of the operator, when the operator takes and places the material, the safety grating 5 can detect hands of people and the cutting device stops operating, and safety performance is improved.

The utility model discloses stub bar excision device theory of operation as follows: placing injection molding part bodies 4a and 4b to be subjected to stub bar cutting into the profiling holes 31, embedding the stub bar in the positioning groove 32, and respectively abutting the side surfaces of the injection molding part bodies 4a and 4b with the opposite positioning surfaces 311 of the two profiling holes 31 under the limiting of the stub bar so as to realize the positioning of the injection molding part bodies 4a and 4b and the stub bar; starting the air cylinder 213, and driving the cutter 222 to move downwards under the drive of the air cylinder 213 and cut off the stub bar at the joint 4 c; the injection-molded part bodies 4a, 4b fall out of the support of the stub bar into the channel 12 of the support table 1 and slide out along the channel 12.

The utility model has the advantages that: 1. the adjusting device is arranged between the cutter and the third mounting plate of the stub bar cutting device, and the position of the cutter on the third mounting plate can be adjusted by the adjusting device, so that the cutter can be conveniently and accurately aligned above the stub bar, and the stub bar cutting quality is improved;

It should be noted that the above-mentioned preferred embodiments are only for illustrating the technical concepts and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention accordingly, and the protection scope of the present invention cannot be limited thereby. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. The utility model provides an injection molding stub bar resection device for excision stub bar (4d) of connection on the injection molding, stub bar resection device is including the location locating plate (3) of stub bar (4d) and correspond the setting and be in cutter mechanism (2) of locating plate (3) top, cutter mechanism (2) including drive assembly and with second mounting panel (221) that drive assembly meets, its characterized in that: cutter mechanism (2) are still including dismantling to be fixed third mounting panel (223) of second mounting panel (221) below and install cutter (222) on third mounting panel (223), still install the regulation on third mounting panel (223) adjusting part (23) of cutter (222) position, adjusting part (23) include slide rail (231) and wear to establish retaining member (232) on slide rail (231), cutter (222) sliding fit is in slide rail (231) and pass through retaining member (232) are supported and are pressed the locking.

2. The injection molded part stub bar cutting apparatus of claim 1, wherein: the cross section of the sliding rail (231) is convex, the two sides of the cutter (222) are provided with matching parts (222a) protruding outwards, and the matching parts (222a) can be embedded in the sliding grooves (231a) in a sliding mode.

3. The injection molded part stub bar cutting apparatus of claim 1, wherein: the locking piece (232) is in threaded connection with the side face of the sliding rail (231) and is abutted against the side face of the cutting knife (222).

4. The injection molded part stub bar cutting apparatus of claim 1, wherein: the injection molding still includes injection molding body (4a, 4b), stub bar (4d) are located between injection molding body (4a, 4b), locating plate (3) include two imitative shape holes (31) and connect constant head tank (32) between imitative shape hole (31), stub bar (4d) are inlayed and are established in constant head tank (32), injection molding body (4a, 4b) receive the stub bar is spacing and fix a position in imitative shape hole (31), it is a plurality of cutter (222) correspond the setting and are in imitative shape hole (31) with constant head tank (32) intersection top.

5. The injection molding stub bar cutting device of claim 4, wherein: the side surface of the profile modeling hole (31) connected with the positioning groove (32) is a positioning surface (311), and the positioning surface (311) is connected with the injection molding part bodies (4a and 4b) in a butting mode.

6. The injection molding stub bar cutting device of claim 4, wherein: and a position avoiding groove (33) which avoids the contact between the cutter (222) and the positioning plate (3) is formed at the intersection of the profiling hole (31) and the positioning groove (32).

7. The injection molding stub bar cutting device of claim 4, wherein: the profile modeling hole (31) is of a through hole structure, and the stub bar (4d) supports the injection molding part bodies (4a and 4 b).

8. The injection molded part stub bar cutting apparatus of claim 6, wherein: an L-shaped supporting block (34) is arranged in the avoiding groove (33), the supporting block (34) comprises a supporting portion (341) located in the profiling hole (31), and the supporting portion (341) supports the injection molding part bodies (4a, 4 b).

9. The injection molding stub bar cutting device of claim 4, wherein: the stub bar cutting device further comprises a supporting table (1) provided with the positioning plate (3), and an opening (11) communicated with the profiling hole (31) is correspondingly formed in the supporting table (1).

10. The injection molded part stub bar cutting apparatus of claim 9, wherein: the supporting table (1) is further provided with a channel (12) communicated with the opening (11), and the channel (12) inclines towards the outside of the supporting table (1).