Hot runner anti-adhesion structure for rapid molding of injection molding part

Abstract

The utility model discloses a hot runner anti-adhesion structure for rapid molding of injection molding parts, which comprises an injection molding table, a fixing module is arranged on the left side of the top of the injection molding table, and an anti-adhesion component is arranged in the fixing module. According to the hot runner anti-adhesion structure for rapid molding of the injection molding part, the ejection mechanism is arranged, under driving of the driving air cylinder, the ejection rod slides in the moving module, the injection molding part subjected to injection molding in the injection molding groove is ejected out through the ejection rod, and rapid discharging operation of the injection molding part is achieved; the main flow channel and the branch flow channel are separated in the injection molding gap time period through the flow choking block, so that the main flow channel is kept in a sealed state, the electrolyte in the heating bin is heated through the arranged electric heating pipe, heat preservation is conducted on residual plastic in the main flow channel, and the situation that the hot flow channel adheres to one another after the plastic is cooled is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection mold technical field, concretely is a kind of hot runner anti-adhesion structure of injection molding part rapid prototyping. BACKGROUND

[0002] Reference patent name is: a injection mold with quick ejection mechanism (patent publication number: CN213166568U, patent publication date: May 11, 2021), including upper die, the upper die top end boundary is connected with lower die, the lower die one end middle part is equipped with notch, the notch inside middle part is provided with ejection mechanism, the ejection mechanism includes L type board, cylinder, moving block, limit slot, positioning groove, push rod, column and sleeve, the notch inside middle part is provided with cylinder, the cylinder outer surface is sleeved with L type board, the L type board one end middle part is connected with moving block by cylinder, by L type board, cylinder, moving block, limit slot, positioning groove, push rod, column and sleeve, the product of injection molding in lower die interior and lower die can be separated, the separation difficulty of the product of injection molding in lower die interior and lower die is reduced, the product in lower die interior can be taken at the same time, and the cooperation between sleeve and column can limit moving block, prevent the phenomenon that the position of moving block moves.

[0003] Based on the above document: after the above injection mold completes injection molding work, when the mold is taken out from lower die, it is often realized that the mold stripping is realized by operating worker manually pulling relevant device after upper and lower die are separated, this process is time-consuming and laborious, affects injection efficiency, and the above injection mold lacks anti-adhesion structure, in the interval time period of two groups of injection molding parts injection molding, the plastic remaining in hot runner can be quickly cooled, thereby generating the case that plastic is adhered to hot runner, affect the flow of subsequent plastic, in turn affect injection effect, therefore, the utility model provides a kind of hot runner anti-adhesion structure of injection molding part rapid prototyping. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of prior art, the utility model provides a kind of hot runner anti-adhesion structure of injection molding part rapid prototyping, solve the problem that the injection molding part is formed after the injection molding of existing injection mold, the stripping process is time-consuming and laborious, and in the interval time period of two groups of injection molding parts injection molding, the plastic remaining in hot runner can be quickly cooled, thereby generating the case that plastic is adhered to hot runner, affect the flow of subsequent plastic, in turn affect injection effect.

[0005] In order to achieve the above object, the utility model discloses a hot runner anti -adhesion structure of injection molding part quick forming through the following technical schemes, a injection molding platform is provided, the left side of the top of injection molding platform is equipped with fixed module, the inside of fixed module is equipped with anti -adhesion subassembly, the right side of the top of injection molding platform is equipped with mobile module, the inside of mobile module is equipped with ejection mechanism, the ejection mechanism includes:

[0006] The ejection assembly comprises a sliding seat slidingly installed on the inner wall of the mobile module, a slanted sliding groove is formed in the surface of the sliding seat, a sliding rod is slidingly connected to the inner surface of the slanted sliding groove, and the surface of the sliding rod is connected to the transmission assembly to enable the ejector rod to slide in the mobile module.

[0007] The driving assembly is arranged on the front side of the mobile module.

[0008] Preferably, the transmission assembly comprises a transmission plate fixedly installed on the surface of the sliding rod and a transmission wheel rotatably installed on the surface of the sliding rod, the surface of the transmission wheel is attached to the surface of the sliding seat, one side of the transmission plate is fixedly connected to a transmission spring, and one end of the transmission spring is fixedly connected to the inner wall of the mobile module.

[0009] Preferably, the driving assembly comprises a driving cylinder installed on the front side of the mobile module, a piston rod slidingly connected to one side of the driving cylinder, and one end of the piston rod fixedly connected to one side of the sliding seat.

[0010] Preferably, a cooling medium inlet is arranged on the front side of the top of the mobile module, and a cooling medium outlet is arranged on the rear side of the top of the mobile module.

[0011] Preferably, a main flow channel is formed in the inside of the fixed module, two groups of branch flow channels are arranged at one end of the main flow channel, and heating cavities are formed in the inside of the fixed module and on the upper and lower sides of the main flow channel.

[0012] Preferably, the anti -adhesion subassembly comprises an electric heating pipe installed in the inside of the fixed module and a flow resistance block slidingly arranged on the inner surface of the main flow channel, the heating end of the electric heating pipe is arranged in the inside of the heating cavity, one side of the flow resistance block is slidingly connected to a limiting rod, the surface of the limiting rod is slidingly connected to the inside of the fixed module, one end of the limiting rod is fixedly connected to a limiting spring, and one end of the limiting spring is fixedly connected to the inner wall of the fixed module.

[0013] Beneficial effects

[0014] The utility model provides a hot runner anti -adhesion structure of injection molding part quick forming.

[0015] (1), the hot runner anti-adhesion structure of the injection molding part rapid prototyping, through the drive cylinder is started to drive the piston rod and the sliding seat to slide to the back side, the sliding of the sliding seat makes the transmission wheel slide on the inclined surface of the sliding seat surface, the sliding rod slides on the inner surface of the inclined sliding groove, so that the sliding rod, the transmission wheel, the transmission plate and the ejector rod slide synchronously to the left side, so that the transmission spring is compressed, the quick discharge operation of the injection molding part is realized through the ejector rod, by setting the ejection mechanism, under the driving of the drive cylinder, the ejector rod slides in the internal moving module, the injection molding part in the injection molding groove is ejected out through the ejector rod, the quick discharge operation of the injection molding part is realized.

[0016] (2), the hot runner anti-adhesion structure of the injection molding part rapid prototyping, by setting the anti-adhesion assembly, the main flow channel and the branch flow channel are separated by the choke block during the injection interval, so that the main flow channel remains sealed, and the electrolyte in the heating bin is heated by the electric heating pipe, because the electrolyte contains iron powder or ferrite, salt crystal and other substances, so that it can be heated more effectively and keep the temperature after power on, so as to provide better warm keeping effect, so as to keep the residual plastic in the main flow channel warm, avoid the hot runner adhesion after the plastic cooling.

[0017] (3), the hot runner anti-adhesion structure of the injection molding part rapid prototyping, by setting the cooling fan, the cooling medium inlet and the cooling medium outlet, the cooling liquid or cooling air is introduced through the cooling medium inlet and discharged through the cooling medium outlet, and the cooling circulation is formed in the moving module, so as to absorb and discharge the heat generated during injection molding, so as to accelerate the rapid prototyping of the injection molding part. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the external structure schematic diagram of the utility model;

[0019] Figure 2 It is the internal structure schematic diagram of the fixed module of the utility model;

[0020] Figure 3 It is the internal structure sectional view of the moving module of the utility model;

[0021] Figure 4 It is the three-dimensional schematic diagram of the ejection assembly of the utility model.

[0022] In the figure: 1-injection molding platform, 2-fixed module, 3-anti-adhesion assembly, 31-electric heating pipe, 32-flow block, 33-limiting rod, 34-limiting spring, 4-moving module, 5-ejection mechanism, 51-ejection assembly, 511-sliding seat, 512-inclined sliding groove, 513-sliding rod, 514-ejection rod, 52-driving assembly, 521-driving cylinder, 522-piston rod, 6-transmission assembly, 61-transmission plate, 62-transmission wheel, 63-transmission spring, 7-cooling medium inlet, 8-cooling medium outlet, 9-main runner, 10-sub runner, 11-heating bin. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0024] Please refer to Figures 1-4 The utility model provides a technical scheme:

[0025] A hot runner anti-adhesion structure for rapid prototyping of injection molded parts, comprising an injection molding platform 1, a fixed module 2 is arranged on the left side of the top of the injection molding platform 1, an anti-adhesion assembly 3 is arranged in the fixed module 2, a moving module 4 is arranged on the right side of the top of the injection molding platform 1, an ejection mechanism 5 is arranged in the moving module 4, and the ejection mechanism 5 comprises:

[0026] An ejection assembly 51 is arranged in the moving module 4, comprising a sliding seat 511 slidingly arranged on the inner wall of the moving module 4, an inclined sliding groove 512 is formed in the surface of the sliding seat 511, a sliding rod 513 is slidingly connected to the inner surface of the inclined sliding groove 512, and the surface of the sliding rod 513 is connected to the ejection rod 514 through a transmission assembly 6 so that the ejection rod 514 slides in the moving module 4.

[0027] A driving assembly 52 is arranged on the front side of the moving module 4.

[0028] The two ends of the sliding rod 513 are provided with sliding blocks, the sliding blocks slide on the inner surface of the inclined sliding groove 512; the ejection rod 514 slides in the ejection groove formed in the moving module 4, the ejection groove limits the upward and downward sliding of the ejection rod 514 and the sliding rod 513; two groups of cooling fans are arranged on the rear side of the moving module 4, and the cooling fans are driven to rotate by a driving motor.

[0029] The transmission assembly 6 comprises a transmission plate 61 fixedly installed on the surface of the sliding rod 513 and a transmission wheel 62 rotatably installed on the surface of the sliding rod 513. The surface of the transmission wheel 62 is in close contact with the surface of the sliding seat 511. One side of the transmission plate 61 is fixedly connected with a transmission spring 63. One end of the transmission spring 63 is fixedly connected with the inner wall of the moving module 4.

[0030] Under the elastic influence of the transmission spring 63, the surface of the transmission wheel 62 is always in close contact with the inclined surface of the sliding seat 511.

[0031] The drive assembly 52 comprises a drive cylinder 521 installed on the front side of the moving module 4. One side of the drive cylinder 521 is slidingly connected with a piston rod 522. One end of the piston rod 522 is fixedly connected with one side of the sliding seat 511.

[0032] The drive cylinder 521 is in communication with an external air source through an air pipe. The piston rod 522 slides in the inside of the moving module 4.

[0033] The front side of the top of the moving module 4 is provided with a cooling medium inlet 7. The rear side of the top of the moving module 4 is provided with a cooling medium outlet 8.

[0034] The cooling medium inlet 7 and the cooling medium outlet 8 can be in communication with external cooling liquid pipes or cooling air pipes.

[0035] The inside of the fixed module 2 is provided with a main flow channel 9. One end of the main flow channel 9 is provided with two groups of shunt channels 10. The inside of the fixed module 2 and the upper and lower sides of the main flow channel 9 are provided with heating bins 11.

[0036] The inside of the heating bin 11 is added with electrolyte containing iron powder or ferrite, salt crystals and other substances, so that it can be heated more effectively and keep the temperature after being electrified, thereby providing better warmth-keeping effect.

[0037] The anti-adhesion assembly 3 comprises an electric heating pipe 31 installed in the inside of the fixed module 2 and a flow resistance block 32 slidingly arranged on the inner surface of the main flow channel 9. The heating end of the electric heating pipe 31 is arranged in the inside of the heating bin 11. One side of the flow resistance block 32 is slidingly connected with a limiting rod 33. The surface of the limiting rod 33 is slidingly connected with the inside of the fixed module 2. One end of the limiting rod 33 is fixedly connected with a limiting spring 34. One end of the limiting spring 34 is fixedly connected with the inner wall of the fixed module 2.

[0038] The limiting spring 34 makes the surface of the flow resistance block 32 in close contact with the notch of the shunt channel 10 under the influence of no external force, thereby separating the main flow channel 9 from the shunt channel 10. The electric heating pipe 31 is connected with an external circuit through an electric wire.

[0039] The hot runner anti-adhesion structure of the injection molding part rapid forming, through the start of the drive cylinder 521 drive piston rod 522 and sliding seat 511 to the rear side sliding, sliding seat 511 sliding makes the transmission wheel 62 in the sliding surface of sliding seat 511 sliding, makes the sliding rod 513 in the inner surface of the inclined sliding groove 512 sliding, in this way makes the sliding rod 513, transmission wheel 62, transmission plate 61 and ejector rod 514 synchronous to the left side sliding, makes the transmission spring 63 be compressed, through the ejector rod 514 realizes the rapid discharge operation of injection molding part, through the setting of the ejection mechanism 5, under the drive of the drive cylinder 521, makes the ejector rod 514 in the inside of the moving module 4 sliding, through the ejector rod 514 ejects the injection molding part of injection molding in the injection groove, realizes the rapid discharge operation of injection molding part.

[0040] Through the setting of the anti-adhesion assembly 3, the main runner 9 and the shunt 10 are separated by the choke block 32 in the injection gap time period, so that the main runner 9 keeps sealed state, and the electrolyte in the heating bin 11 is heated by the setting of the electric heating pipe 31, because the electrolyte contains iron powder or ferrite, salt crystal and other substances, so that it can be heated more effectively and keep temperature after power on, so as to provide better warm-keeping effect, so as to keep the residual plastic in the main runner 9 warm, avoid the hot runner adhesion after the plastic cooling.

[0041] Through the setting of the cooling fan, cooling medium inlet 7 and cooling medium outlet 8, the cooling liquid or cooling air is introduced through the cooling medium inlet 7 and discharged through the cooling medium outlet 8, and the cooling cycle is formed in the moving module 4, so as to absorb and discharge the heat generated during injection molding, so as to accelerate the rapid forming of injection molding part.

[0042] Meanwhile, the contents not described in detail in the specification all belong to the prior art known to those skilled in the art.

[0043] When working, the mobile module 4 is driven to slide to the left by starting the mobile motor on the right side of the injection molding table 1, so that the mobile module 4 is attached to the surface of the fixed module 2, then the plastic is injected into the main flow channel 9 by starting the external injection molding machine, then the plastic extrudes the resistance block 32, that is, the resistance block 32 and the limiting rod 33 slide to the right synchronously, so that the limiting spring 34 is compressed, so that the branch flow channel 10 is communicated with the main flow channel 9, the plastic is injected into the injection molding groove through the branch flow channel 10, and the injection molding operation is performed, when the injection molding is completed, the resistance block 32 is reset under the influence of the elasticity of the limiting spring 34, so that the resistance block 32 redivides the main flow channel 9 and the branch flow channel 10, and then the electrolyte in the heating bin 11 is heated by starting the electric heating pipe 31, so that the plastic in the main flow channel 9 is heated by the heating bin 11, avoiding the cooling and adhesion of the residual plastic in the main flow channel 9, at the same time, the cooling medium inlet 7 is used to guide the external cooling liquid or cooling air into the mobile module 4, and the cooling medium outlet 8 is used to discharge, so that the cooling circulation is formed, so as to accelerate the cooling of the injection molding part, so as to improve the rapid forming efficiency of the injection molding part, when the injection molding part is formed, the piston rod 522 and the sliding seat 511 are driven to slide to the rear side by starting the driving cylinder 521, the sliding of the sliding seat 511 makes the transmission wheel 62 slide on the inclined surface of the sliding seat 511, the sliding rod 513 slides on the inner surface of the inclined sliding groove 512, so that the sliding rod 513, the transmission wheel 62, the transmission plate 61 and the ejector rod 514 slide to the left synchronously, so that the transmission spring 63 is compressed, and the ejector rod 514 is used to realize the rapid ejection operation of the injection molding part.

[0044] It should be noted that, in the present text, relational terms such as first and second and the like can only be used to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising", or any other variant thereof are intended to cover non-exclusive inclusions, so that a process, method, article, or apparatus that includes a list of elements not only includes those elements, but also includes other elements not explicitly listed, or inherent to such a process, method, article, or apparatus.

[0045] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A hot runner anti-adhesion structure for rapid prototyping of injection molded parts, comprising an injection molding station (1), characterized in that: The left side of the top of the injection molding platform (1) is provided with a fixed module (2), the inside of the fixed module (2) is provided with an anti-adhesion assembly (3), the right side of the top of the injection molding platform (1) is provided with a moving module (4), the inside of the moving module (4) is provided with an ejection mechanism (5), the ejection mechanism (5) comprises: The ejection assembly (51) comprises a sliding seat (511) slidingly installed on the inner wall of the moving module (4), the surface of the sliding seat (511) is provided with an inclined sliding groove (512), the inner surface of the inclined sliding groove (512) is slidingly connected with a sliding rod (513), and the surface of the sliding rod (513) is connected with a top rod (514) in the inside of the moving module (4) through a transmission assembly (6); The driving assembly (52) is arranged on the front side of the moving module (4).

2. The hot runner anti-adhesion structure for rapid prototyping of injection molded parts of claim 1, wherein: The transmission assembly (6) comprises a transmission plate (61) fixedly installed on the surface of the sliding rod (513) and a transmission wheel (62) rotatably installed on the surface of the sliding rod (513), the surface of the transmission wheel (62) is attached to the surface of the sliding seat (511), one side of the transmission plate (61) is fixedly connected with a transmission spring (63), and one end of the transmission spring (63) is fixedly connected with the inner wall of the moving module (4).

3. The hot runner anti-adhesion structure for rapid prototyping of injection molded parts of claim 1, wherein: The driving assembly (52) comprises a driving cylinder (521) installed on the front side of the moving module (4), one side of the driving cylinder (521) is slidingly connected with a piston rod (522), and one end of the piston rod (522) is fixedly connected with one side of the sliding seat (511).

4. The hot runner anti-welding structure for rapid prototyping of injection molded parts according to claim 1, wherein: The front side of the top of the moving module (4) is provided with a cooling medium inlet (7), and the rear side of the top of the moving module (4) is provided with a cooling medium outlet (8).

5. The hot runner anti-welding structure for rapid prototyping of injection molded parts according to claim 1, wherein: The inside of the fixed module (2) is provided with a main flow channel (9), one end of the main flow channel (9) is provided with two groups of flow distribution channels (10), and the inside of the fixed module (2) and the upper and lower sides of the main flow channel (9) are provided with heating bins (11).

6. The hot runner anti-welding structure for rapid prototyping of injection molded parts according to claim 5, wherein: The anti-adhesion assembly (3) comprises an electric heating pipe (31) installed in the inside of the fixed module (2) and a flow resistance block (32) slidingly arranged on the inner surface of the main flow channel (9), the heating end of the electric heating pipe (31) is arranged in the inside of the heating bin (11), one side of the flow resistance block (32) is slidingly connected with a limiting rod (33), the surface of the limiting rod (33) is slidingly connected with the inside of the fixed module (2), one end of the limiting rod (33) is fixedly connected with a limiting spring (34), and one end of the limiting spring (34) is fixedly connected with the inner wall of the fixed module (2).

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