TW202311001A - Injection molding machine - Google Patents

Abstract

An injection molding machine is characterized in that a molding device includes a lifting holding unit, a moving unit, a first lower die, a second lower die, and at least one upper die, so that the moving unit carries out an action of the upper die to cover on the first or the second lower dies. A pressing device is adapted to execute a pressing operation and an injection device is adapted to execute an injection operation, so that a finished product with two colors can be produced while the upper die moves between the first and the second lower dies respectively. Another upper die can be adapted, so that two upper dies are adapted to respectively work with the first and the second lower dies to thereby produce products by two sets of dies simultaneously and improve the productivity.

Description

Injection Molding Machine with Dual Modules and Double Injection

The present invention relates to the design of an injection molding machine, in particular to an injection molding machine with double die sets and double injection materials.

According to investigations, the current injection molding products seek various changes in color, not just a single color system, so a further step is to use two different materials or a combination of different colors. In the known technology, in order to make the two different colors To achieve a perfect combination of materials or different colors, in the manufacturing process, the finished product form of the first material must be obtained after the first injection of the mold is completed, and then the mold is opened, and then the to-be-molded Another form of model is put into the mold of the semi-finished product mentioned above, and after the mold is closed, the second injection of different materials is continued, so that the second injection is combined with the semi-finished product to obtain a specific finished product However, after using it, it is found that this multi-process injection molding production method can only be effectively completed through the use of different machines, and in view of the additional insertion of the second injection model, the insertion During the process, there will be defects such as position deviation. At the same time, the injection time for the second bonding must depend on the cooling time after the first injection. This operation method will cause poor bonding. , In addition to the poor yield rate of finished products, this will lead to a rather complicated and labor-intensive and time-consuming operation process, which really needs to be improved.

Therefore, the object of the present invention is to provide an injection molding machine with dual-mode sets and double-injection materials, which can effectively increase production capacity and save working time and other benefits.

Therefore, the injection molding machine with dual-mode set and double-injection of the present invention includes a main body, a dual-mode device, a compression mold device and an injection device; The moving part on the lifting bracket, two first lower molds and second lower molds arranged at intervals under the lifting bracket, and one upper mold corresponding to the position of the first lower mold or the second lower mold, And the upper mold can be pushed by the moving part so that when the upper mold is clamped on the first or second lower mold, it can be pressed by the compression molding device to closely fit with the mold clamping place, and the aforementioned The first lower mold and the second lower mold are respectively formed with a feed channel on one side of the injection device, and in addition cooperate with the injection device to form a double-injection state, so the design of the dual-mode device makes the Driven and linked by the moving part and the lifting bracket, the upper mold can be covered on the first lower mold first, and is further subjected to the pressure during the mold closing process between the first lower mold and the upper mold. After the pressing of the first die of the molding device and the injection of the first discharge seat of the injection device, the first die will stop pressing the upper die, and then the upper die will be driven by the lifting bracket. The mold and the first lower mold are separated in a short mold opening mode, and the upper mold and the first-time injected finished product attached to the upper mold are moved continuously by the moving part, so that the upper mold and the second lower mold The mold is clamped at the mold, and accepts the pressure of the second mold and the injection material of the second discharge seat, and another upper mold can be added in time to achieve the molding operation of double molds and double outlets , so that the injection molding operation of the single-mode, two-color coated finished product can be almost completed in the injection molding process with no time difference, effectively saving operation time and improving production efficiency.

The aforementioned and other technical contents, features and effects of the present invention will be clearly understood in the following detailed description of preferred embodiments with reference to the drawings.

Referring to Fig. 1, the first preferred embodiment of the present invention, the injection molding machine 3 (represented in a simplified diagram among the figures) of tool double mold group and double injection comprises a main body 31, and at least one plural form is located on this main body 31 The dual-mode device 32, a die device 33 corresponding to the dual-mode device 32, and an injection device 34 located on the side of the die device 33; wherein, in this embodiment, the body 31 is a rotating A plurality of dual-mode devices 32 can be arranged at intervals on the main body 31 which is arranged in the form of a rotating part, so that the main body 31 can move one of the dual-mode devices 32 to the die device 33 for lid cooperation Industry.

Continuing from the foregoing, each dual-mode device 32 has an elevating frame 321 disposed on the main body 31, a moving member 322 disposed on the elevating frame 321, and two first movable parts positioned at intervals under the elevating frame 321. , the second lower mold 323,324, and an upper mold 325 corresponding to the first lower mold 323 or the second lower mold 324, and the aforementioned moving part 322 can move up and down on the lifting bracket 321, and the upper mold The mold 325 can be pushed by the moving part 322, so that the upper mold 325 is located above the first and second molds 323, 324, and a molding cavity a is formed on the first and second lower molds 323, 324, and simultaneously The first lower mold 323 and the second lower mold 324 are respectively formed with a feed channel b communicating with the molding cavity a on the side opposite to the injection device 34, and the aforementioned first and second lower molds 323, 324 The setting of the forming hole a can be customized and adjusted according to the different forming requirements, and will not be described in detail below.

Continuing from the foregoing, the die device 33 has first and second dies 331, 332 corresponding to the first and second lower dies 323, 324 respectively, and the first die 331 can move on the upper die 325 When facing the first lower mold 323, the first die 331 will press the upper mold 325 in a heavy pressure mode, so that the upper mold 325 is indeed covered on the first lower mold 323 and produces close-fitting mold clamping state, or when the upper mold 325 is moved to the top of the second lower mold 324 by the action of the moving part 322 and then lowered to cover, the second die 332 will also press heavily The upper mold 325 is pressed so that the upper mold 325 is indeed covered on the second lower mold 324 to form a close-fitting mold-fitting shape, and the pressing of the first and second dies 331, 332 The force of the trigger can be adjusted and corrected according to the molding style of the injection operation; in addition, the injection device 34 has a base 341, and two first valves respectively arranged on the base 341 and corresponding to the feeding channels b. The discharge seat 342 and the second discharge seat 343, and the aforementioned first and second discharge seats 342, 343 are filled with injection material, and the first and second discharge seats 342, 343 can be placed on the seat body 341 is up and down and vertically reciprocating, so as to properly adjust the height position of the dual-mode device 32 on the body 31 and fill in the first and second discharge seats 342, 343 at the same time. The injection material can be different according to the requirements of the finished product to be injection molded. Each device has injection materials of different materials (not shown in the figure), or injection materials of different colors.

Referring to Fig. 1, when performing operations, first properly adjust the distance and height between the first and second discharge seats 342, 343 relative to the feed channels b of the first and second lower dies 323, 324, and After the injection materials with different properties to be injection combined are filled in the first and second discharge seats 342, 343 respectively, start the driving source (not shown in the figure) to rotate the body 31 in conjunction with it. Therefore, in the Driven by the rotation of the main body 31, each of the dual-mode devices 32 located on the main body 31 will sequentially rotate to the bottom of the compression molding device 32 with the rotation of the main body 31, and correspond to the injection device 34 , to perform injection molding operations; therefore, when the dual-mode device 32 moves to a position below the die device 33, the first and second lower dies 323, 324 will be aligned with the first and second dies 331 , 332 are opposite, and the upper mold 325 will be pushed by the moving part 322 to be located between the first lower mold 323 and the first pressing mold 331, and the upper mold 325 is opposite to the first lower mold 323 At this time, the moving part 322 moves on the lifting bracket 321 to drive the upper mold 325 to cover the first lower mold 323, so that the forming hole a on the first lower mold 323 is blocked on the upper mold 325 and the first lower die 323, at this time the first die 331 will move downward under the drive to carry out gravity pressing on the upper die 325, so that the upper die and the first lower die 323 Form a tight fit, that is, as shown in the simple diagram of Figure 2, at the same time, the first discharge seat 342 will move longitudinally on the seat body 341 to the direction of the feed channel b until it is close to the first discharge seat 341. After the lower mold 323 and the upper mold 325 are closed, the first molding material contained in it will be injected through the feed channel b for injection, so that the injected material can be filled in the After entering the forming hole a, the first discharge seat 342 will stop the injection of the injection material, and move away from the place b away from the feed channel b, so that the first discharge seat 341 completes the first injection injection process.

Continuing from the foregoing, after the first discharge seat 342 moves and withdraws, the first die 331 will also move out and not be pressed against the upper die 325 any more, and the moving member 322 will be on the lifting bracket 321 Drive the upper die 325 to move upwards under the actuation of the upper die 325 so that the upper die 325 and the first lower die 323 form a short mold opening shape, and the upper die 325 will move to the upper die 325 with the push of the moving part 322. The second lower mold 324, and under the drive of the lifting bracket 321, descends to cover the second lower mold 324, and the aforementioned first injection molding in the first lower mold 323, Then, a single-color semi-finished product (not shown) will be formed due to the instantaneous cooling of the mold opening of the upper mold 325 and the first lower mold 323, and the single-color semi-finished product will be opened on the upper mold 325. After that, it is attached to the upper mold 325, and with the movement and descent of the upper mold 325, it is placed in the forming hole a of the covered second lower mold 324, as shown in the simple diagram of Figure 3 At the same time, the second discharge seat 343 corresponding to the second lower mold 325 will be driven to move in the direction of the feed channel b, and after getting close to the feed channel b, the first Two kinds of injection materials are injected through the feed channel b, when the second injection material is injected into the forming cavity a of the second lower mold 324, it will be filled in the forming cavity a and with The single-color semi-finished product is combined, and after the second injection process is completed, the second discharge seat 343 will stop the injection of the injection material, and exit in a direction away from the feeding channel b At the same time, the second die 332 is also converted from the fully pressed mode to the disengaged state, thereby completing the injection molding operation of the two-color single mold, and the body 31 will also rotate immediately after the injection molding operation is completed, so that The double mold device 32 that has completed the injection molding operation is driven away from the bottom of the press mold device 33 under the rotation, and a material return device (not shown) will be molded on the second lower mold 324 with two colors. The coated finished product is returned and taken out, and then the dual-mode device 32 can follow the rotation of the body 31 to perform the next injection molding process; therefore, the overall injection molding process can be carried out in a consistent manner, Therefore, it is not necessary to use different tools as is conventionally known, or to stop the machine during the operation and then insert an additional mold to achieve effective injection molding, and the finished product will still have the problem of lack of deviation, that is, it can be produced almost without The injection molding operation of the single-mode, two-color coated finished product is completed in the injection injection process at the same time as the time difference. Therefore, the present invention has a dual-mode and double-injection molding mode, which can be processed to produce a well-integrated injection-molded finished product, and at the same time more It can meet the practical application of fast and accurate combination of different materials, and effectively save working time and improve production efficiency.

Referring to Fig. 4, the second preferred embodiment of the present invention still includes the components described in the previous embodiment; Molding has two single-color finished products. The dual-mode device 32 is especially provided with an upper mold 325 above the first and second lower molds 323 and 324, and these upper molds 325 are arranged side by side on the moving part 322 at the same time. and the upper molds 325 are correspondingly covered on the first and second lower molds 323, 324, so as to meet the requirements of different injection molding products.

Therefore, when performing double-mode single-color injection molding operations, first fill the same color and material injection materials into the first and second discharge seats 342 and 343 respectively, and then the dual-mode device 32 can be placed on the main body 31 Driven by it, it is moved to the lower part of the die device 33 for positioning. At this time, the upper dies 325 will be lowered to the space between the first and second lower dies 323, 324 under the linkage of the lifting bracket 321. At the same time, the first die 331 will move downward under the driving, so as to be pressed on the upper die 325 opposite to the first lower die 323, so that the upper die 325 is opposite to the first lower die 323. The first lower mold 323 forms a tight cover, as shown in the simple diagram of Figure 5, and at the same time, the first feed seat 342 will move in the direction of the feed channel b on the seat body 341 until it is close to the After the feeding channel b, the injection material filled in it is directly injected from the feeding channel b, so that after the injection material is filled in the molding cavity a, the first discharge seat 342 stops the injection operation, and move out and away from the feed channel b, at the same time, the first die 331 will also be converted from a fully pressed state to a form that is separated from the upper die 325, thereby making the upper die 325 in the first The die 331 is separated from the first lower die 323 when it breaks away from the pusher, and presents a short-opening pattern. The second lower die 324 corresponds to the upper die 325, so that the upper die 325 and the second lower die 324 form a tight cover, and the second feed seat 343 will move toward the second lower die 324. The material channel b is moved closer so that the injection material is injected into the forming hole a of the second lower mold 324 through the material channel b, and after the injection process is completed, the injection operation is stopped and carried out synchronously Exit the movement of the range of the feeding channel b, and the second die 324 will also be converted into a relaxed state and not press on the upper die 325 in a tight mode, as shown in the simple diagram of Figure 6, whereby, The main body 31 can be rotated after the molding device 32 exits the press, so that the finished product that has been formed in the dual-mode device 32 can be driven to the ejection place for ejection, so that the molding operation can be performed at one time. Injection molding with single-color dual-mode can be completed at the same time to double the output processing, which can not only effectively improve the operation time and save time, but also achieve rapid and effective increase in production efficiency.

To sum up the foregoing, the present invention has a dual-mode group and a double-injection injection molding machine, which has a lifting bracket, a moving part, a first and a second lower mold, and a joint with the first lower mold or the second lower mold through the dual-mode device. The mold position corresponds to the design of the upper mold, so that the upper mold can be driven by the movement of the moving part and the lifting bracket, so that the upper mold can be covered on the first or second lower mold, and through the pressure mold The device and the injection device carry out the cooperation of the gravity pressure and the injection injection of the first or second lower mold covered by the upper mold, so that the single mold can be completed in the injection injection process with almost no time difference. The injection molding operation of two-color cladding products can of course meet the needs of different injection molding products. In addition, the upper mold is separately installed on the first and second lower upper molds, and the upper mold is arranged side by side at the same time as the moving part. In this way, it is possible to present the finished product with dual-mode and single-color at the same time in the injection molding operation, which not only can effectively improve the production efficiency, but also greatly save the processing time of injection molding.

But the above is only to illustrate the preferred embodiments of the present invention, and should not limit the scope of the present invention, that is, all the simple equivalent changes and modifications made according to the patent scope of the present invention and the content of the description of the invention , should still fall within the scope covered by the patent of the present invention.

(this invention) 3: Injection molding machine 31: Body (rotating part) 32: Dual mode device 33: Compression molding device 34: Injection device 321: lifting bracket 322: Moving parts 323: The first die 324: The second die 325: upper mold 331: The first stamper 332: Second die 341: seat body 342: The first discharge seat 343: Second discharge seat a: forming hole b: feed channel

Fig. 1 is a schematic diagram of the first preferred embodiment of the present invention. Fig. 2 and Fig. 3 are schematic diagrams of the operation of partial components of the first preferred embodiment. Fig. 4 is a schematic diagram of a second preferred embodiment of the present invention. Fig. 5 and Fig. 6 are schematic diagrams of the operation of partial components of the second preferred embodiment.

(this invention)

3: Injection molding machine

31: Body (rotating part)

32: Dual mode device

33: Compression molding device

34: Injection device

321: lifting bracket

322: Moving parts

323: The first die

324: The second die

325: upper mold

331: The first stamper

332: Second die

341: seat body

342: The first discharge seat

343: Second discharge seat

a: forming hole

b: feed channel

Claims (4)

An injection molding machine with dual-mode sets and double-injection materials, which includes a body, at least one dual-mode device mounted on the body, a die device corresponding to the dual-mode device, and a die device disposed on the press The injection device on the side of the mold device; wherein, each of the dual-mode devices has a lifting bracket set on the main body, a moving part set on the lifting bracket, and two second spaced under the lifting bracket. 1. The second lower mold, and an upper mold corresponding to the position of the first lower mold or the second lower mold, and the aforementioned moving part can move up and down on the lifting bracket, and the upper mold can be moved by The moving part is moved so that the upper mold is located above the first and second lower molds, and a forming hole is respectively formed on the first and second lower molds, and at the same time, the forming hole communicates with a feeding channel outwardly, and The feed channel corresponds to the injection device; in addition, the injection device has a base, and two first and second discharge seats that are arranged on the base and correspond to the feed channels, and the aforementioned The first and second discharge seats are filled with injection materials; as for, the die device has first and second dies corresponding to the first and second lower dies respectively, and the first or second dies The mold can be pressed against the upper mold, so that when the upper mold and the first or second lower mold are clamped, the first or second discharge seat can be used to inject the injection material into the feed channel. , and the injection material enters the molding cavity for molding. According to the injection molding machine with dual-mode set and double-injection according to claim 1, wherein, the body is provided as a rotating part, and the rotating part can be arranged at intervals for a plurality of the dual-mode devices, so that the rotating part - The dual-mode device moves below the die device for capping operation. According to the injection molding machine with dual-mode set and double-injection described in claim 1, wherein, the dual-mode device is provided with an upper mold above the first and second lower molds, and these upper molds are arranged side by side at the same time On the moving part, the upper molds are correspondingly covered on the first and second lower molds. According to the injection molding machine with dual modules and double injections described in Claim 1, wherein the first and second discharge seats can be lifted up and down and reciprocated longitudinally on the seat body.

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