阅读说明：本技术 一种旋转注塑系统 (Rotary injection molding system ) 是由 罗邦毅 张彩芹 庄谦 于 2021-09-28 设计创作，主要内容包括：本发明涉及注塑模具技术领域,公开了一种旋转注塑系统,包括固定在注塑机上的定模组件、可通过注塑机驱动移动的动模组件,所述注塑机上位于定模组件、动模组件的下端之间设有导轨,所述导轨上滑动设有连接座,连接座上固定有基座,基座上设有转动座,所述转动座上固定有模具转体,所述基座上设有用于驱动模具转体旋转的驱动组件；所述模具转体位于定模组件与动模组件之间,模具转体上设有四个模芯安装面,每个模芯安装面上设有若干模芯,所述连接座上还设有用于驱动模具转体沿着导轨滑动的开合模机构。本发明具有能够进行连续注塑、注塑等待时间短、注塑效果高的有益效果。(The invention relates to the technical field of injection molds and discloses a rotary injection molding system which comprises a fixed mold component and a movable mold component, wherein the fixed mold component is fixed on an injection molding machine; the mould is turned and is located between cover half subassembly and the movable mould subassembly, is equipped with four mold core installation faces on the mould is turned, is equipped with a plurality of mold cores on every mold core installation face, still be equipped with on the connecting seat and be used for driving the mould to turn along the gliding mould mechanism that opens and shuts of guide rail. The invention has the advantages of continuous injection molding, short injection molding waiting time and high injection molding effect.)

1. A rotary injection molding system comprises a fixed die assembly fixed on an injection molding machine and a movable die assembly capable of being driven to move by the injection molding machine, and is characterized in that a guide rail is arranged between the lower ends of the fixed die assembly and the movable die assembly on the injection molding machine, a connecting seat is arranged on the guide rail in a sliding manner, a base is fixed on the connecting seat, a rotating seat is arranged on the base, a die rotating body is fixed on the rotating seat, and a driving assembly for driving the die rotating body to rotate is arranged on the base; the mould is turned and is located between cover half subassembly and the movable mould subassembly, is equipped with four mold core installation faces on the mould is turned, is equipped with a plurality of mold cores on every mold core installation face, still be equipped with on the connecting seat and be used for driving the mould to turn along the gliding mould mechanism that opens and shuts of guide rail.

2. The rotary injection molding system according to claim 1, wherein the mold opening and closing mechanism comprises an upper rack and a lower rack, the upper rack and the lower rack are both distributed in parallel with the guide rail, one end of the upper rack is fixedly connected with the fixed mold component, one end of the lower rack is fixedly connected with the movable mold component, a gear seat is fixed on the connecting seat, and a gear meshed with the upper rack and the lower rack is rotatably arranged in the gear seat.

3. A rotary injection molding system according to claim 1 or 2, wherein two parallel guide posts are provided between the upper ends of the fixed mold assembly and the movable mold assembly, a connecting plate is provided between the guide posts, the connecting plate is slidably connected with the guide posts through sliding seats, a rotating seat is rotatably provided on the connecting plate, and the upper end of the mold rotating body is fixedly connected with the rotating seat.

4. A rotary injection molding system as claimed in claim 3, wherein the side of the connecting plate is provided with an auxiliary pull cylinder.

5. A rotary injection molding system as claimed in claim 3, wherein a rotational positioning mechanism is provided between the base and the rotatable base.

6. The rotary injection molding system according to claim 5, wherein the positioning mechanism comprises a guide sleeve fixed on the base, and a jacking assembly fixed on the bottom of the base, a connecting rod is arranged inside the guide sleeve, the lower end of the guide sleeve is fixedly connected with the base, the connecting rod passes through the guide sleeve to form a sliding connection, a positioning column is fixed on the upper end of the connecting rod, the lower end of the connecting rod is connected with the jacking assembly, and a plurality of positioning sleeves matched with the positioning columns are arranged on the bottom of the rotating seat.

7. A rotary injection molding system as claimed in claim 1, wherein each of the mold core mounting surfaces has a plurality of mold core mounting seats for fixing the mold cores, each of the mold cores has a cooling channel therein, the mold core rotating body has a liquid inlet channel and a liquid outlet channel therein, the liquid inlet channel and the liquid outlet channel are respectively connected to both ends of the cooling channel in each of the mold cores, the base has a liquid supply assembly at a lower end thereof, the liquid supply assembly includes a female core fixed to a lower end of the rotating seat, a side wall of the female core has an annular liquid inlet groove and an annular liquid outlet groove, a lower end of the liquid inlet channel extends to be connected to the annular liquid inlet groove, a lower end of the liquid outlet channel extends to be connected to the annular liquid outlet groove, and the liquid supply assembly further has a liquid inlet channel connected to the annular liquid inlet groove and a liquid outlet channel connected to the annular liquid outlet groove.

8. The rotary injection molding system of claim 7, wherein a cylinder sleeve fixed to the base is sleeved outside the female core, the female core is rotatably connected to the cylinder sleeve, the annular liquid inlet groove and the annular liquid outlet groove are both located on an outer side surface of the female core, and the liquid inlet channel and the liquid outlet channel are located in the cylinder sleeve.

9. A rotary injection molding system according to claim 8, wherein the core body has a core body, the core body is rotatably connected to the core body, the lower end of the core body is fixedly connected to the cylinder sleeve through a base, the side surface of the core body has an annular air inlet groove, an air inlet passage penetrating the base is provided in the core body, the upper end of the air inlet passage is communicated with the annular air inlet groove, the core body has an air blowing through hole, an air guide passage communicating with the air blowing through hole is provided in the mold rotating body, and the lower end of the air guide passage is communicated with the annular air inlet groove after passing through the rotating base and the core body.

10. A rotary injection molding system as claimed in claim 9, wherein the driving assembly is a motor, the rotary support is provided at an outer side of the rotary base, the rotary support is fixedly connected to the base, a driven gear is fixed at an outer side of the rotary base, and a driving gear engaged with the driven gear is provided at an axial end of the driving assembly.

Technical Field

The invention relates to the technical field of injection molds, in particular to a rotary injection molding system.

Background

At present, a plurality of products are injection molded through an injection mold, when the injection mold is loaded, the injection molding machine and the injection mold are in a separated state, and the injection molding machine is in a waiting state; after loading, the injection molding machine is combined with the mold assembly and then injection molding is carried out, after injection molding is finished, the injection molding machine is separated from the injection mold again, then demolding is carried out, and the injection molding machine is also in a waiting state in the demolding process. A lot of waiting time exists in the whole injection molding process of the existing injection mold, and the injection molding efficiency is low.

Disclosure of Invention

The invention provides a rotary injection molding system with short injection molding waiting time and high injection molding efficiency, which aims to solve the problem of low injection molding efficiency of an injection molding system in the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme:

a rotary injection molding system comprises a fixed die assembly and a movable die assembly, wherein the fixed die assembly is fixed on an injection molding machine, the movable die assembly can be driven by the injection molding machine to move, a guide rail is arranged between the lower ends of the fixed die assembly and the movable die assembly on the injection molding machine, a connecting seat is arranged on the guide rail in a sliding mode, a base is fixed on the connecting seat, a rotating seat is arranged on the base, a die rotating body is fixed on the rotating seat, and a driving assembly used for driving the die rotating body to rotate is arranged on the base; the mould is turned and is located between cover half subassembly and the movable mould subassembly, is equipped with four mold core installation faces on the mould is turned, is equipped with a plurality of mold cores on every mold core installation face, still be equipped with on the connecting seat and be used for driving the mould to turn along the gliding mould mechanism that opens and shuts of guide rail. The die rotating body is provided with four die core mounting surfaces, and two opposite side surfaces correspond to the fixed die assembly and the movable die assembly; the injection molding machine comprises an initial state, a movable mold component and a mold rotating body are in a separation state, the mold rotating body and a fixed mold component are in a separation state, a product to be injected is sleeved into mold cores (workpiece loading operation) on two sides of the mold rotating body, the mold rotating body is driven by a driving component to rotate by an angle, the mold cores on which the product is sleeved face the fixed mold component, the movable mold component is driven by an injection molding machine to rotate to mold, a mold opening and closing mechanism closes the mold rotating body and the fixed mold component, the injection molding machine performs injection molding operation, the injection molding machine is in the operation process, workpiece loading operation (or workpiece taking operation) can be performed on the rest two mold core mounting surfaces of the mold rotating body, waiting time is reduced, and injection molding efficiency is greatly improved.

Preferably, the die sinking mechanism comprises an upper rack and a lower rack, the upper rack and the lower rack are both distributed in parallel with the guide rail, one end of the upper rack is fixedly connected with the fixed die assembly, one end of the lower rack is fixedly connected with the movable die assembly, a gear seat is fixed on the connecting seat, and a gear meshed with the upper rack and the lower rack is rotationally arranged in the gear seat. After the injection molding operation is finished, the mold opening is needed, the injection molding machine drives the movable mold assembly to be separated from the mold rotating body, and the lower rack connected with the movable mold assembly drives the gear to rotate, so that the mold rotating body is synchronously separated from the fixed mold assembly; and similarly, when the die is closed, the die rotating body and the movable die assembly are synchronously closed.

Preferably, two parallel guide posts are arranged between the upper ends of the fixed die assembly and the movable die assembly, a connecting plate is arranged between the guide posts and is connected with the guide posts in a sliding mode through a sliding seat, a rotating seat is arranged on the connecting plate in a rotating mode, and the upper end of the rotating body of the die is fixedly connected with the rotating seat. The guide post, the connecting plate, the sliding seat and the rotating seat are used for rotatably positioning the upper end of the die rotating body, and the upper end and the lower end of the die rotating body are rotatably positioned due to the fact that the die rotating body is large in mass, so that the rotating stability is better.

Preferably, the side of the connecting plate is provided with an auxiliary pulling cylinder. When the movable die assembly is opened, the lower rack and the gear drive the die to rotate for opening the die, and meanwhile, the auxiliary pull cylinder assists in pulling the die to rotate for sharing loads on the gear, the upper rack and the lower rack.

Preferably, a rotary positioning mechanism is arranged between the base and the rotating seat. Because the mass of the die rotating body is large and the die rotating body has large rotating inertia, after the die rotating body rotates for an angle, the rotating seat is positioned by the rotating positioning mechanism and then the die is closed, so that the die closing precision is ensured.

Preferably, the positioning mechanism comprises a guide sleeve fixed on the base and a jacking assembly fixed at the bottom of the base, a connecting rod is arranged on the inner side of the guide sleeve, the lower end of the guide sleeve is fixedly connected with the base, the connecting rod penetrates through the guide sleeve to form sliding connection, a positioning column is fixed at the upper end of the connecting rod, the lower end of the connecting rod is connected with the jacking assembly, and a plurality of positioning sleeves matched with the positioning column are arranged at the bottom of the rotating seat. When the rotating seat rotates to a proper position, the jacking assembly jacks the positioning column, so that the positioning column is inserted into the positioning sleeve, and the stable positioning of the rotating seat is realized.

Preferably, a plurality of die core mounting seats used for fixing the die cores are arranged on each die core mounting surface, each die core is internally provided with a cooling channel, a liquid inlet channel and a liquid outlet channel which are respectively communicated with two ends of the cooling channel in each die core are arranged in each die core rotating body, the lower end of the base is provided with a liquid supply assembly, the liquid supply assembly comprises a female core fixed at the lower end of the rotating base, the side wall of the female core is provided with an annular liquid inlet groove and an annular liquid outlet groove, the lower end of the liquid inlet channel extends to be communicated with the annular liquid inlet groove, the lower end of the liquid outlet channel extends to be communicated with the annular liquid outlet groove, and a liquid inlet channel communicated with the annular liquid inlet groove and a liquid outlet channel communicated with the annular liquid outlet groove are further arranged in the liquid supply assembly. After injection molding, the temperature of the mold core is high, and the product after injection molding can be demoulded after the mold core is cooled; after the mold is opened in the structure, cooling medium is circularly supplied to the cooling channel in the mold core through an external cooling system, so that the mold core is rapidly cooled, and the product is conveniently and rapidly demolded.

Preferably, a cylinder sleeve fixed with the base is sleeved on the outer side of the female core, the female core is rotatably connected with the cylinder sleeve, the annular liquid inlet groove and the annular liquid outlet groove are both located on the outer side face of the female core, and the liquid inlet channel and the liquid outlet channel are located in the cylinder sleeve.

Preferably, a sub-core is arranged in the main core, the sub-core is connected with the main core in a rotating mode, the lower end of the sub-core is fixedly connected with the cylinder sleeve through a base, an annular air inlet groove is formed in the side face of the sub-core, an air inlet channel penetrating through the base is arranged in the sub-core, the upper end of the air inlet channel is communicated with the annular air inlet groove, an air blowing through hole is formed in the mold core, an air guide channel communicated with the air blowing through hole is formed in the mold rotating body, and the lower end of the air guide channel is communicated with the annular air inlet groove after penetrating through the rotating base and the main core. The air inlet channel is connected with an external air channel, the air inlet channel can be controlled to be in an air blowing or air suction state through the air channel, and after a product is loaded, the air blowing through holes in the mold core are in an air suction state, so that the product is adsorbed and positioned, and the product is prevented from falling off in the rotating process of the mold rotating body; and after the mold core is cooled after the mold is opened, the air blowing through holes in the mold core are in an air blowing state, so that smooth demolding of the product is facilitated.

Preferably, the driving assembly is a motor, a rotary support seat is arranged on the outer side of the rotary seat and fixedly connected with the base, a driven gear is fixed on the outer side of the rotary seat, and a driving gear meshed with the driven gear is arranged at the shaft end of the driving assembly. The motor drives the driven gear to rotate through the driving gear, and therefore rotation of the die rotating body is achieved.

Therefore, the invention has the advantages of continuous injection molding, short injection molding waiting time and high injection molding effect.

Drawings

FIG. 1 is a schematic diagram of a structure of the present invention.

Fig. 2 is a front view of fig. 1.

FIG. 3 is a top view showing the positional relationship among the die rotator, the stationary die assembly and the movable die assembly.

Fig. 4 is an exploded view of fig. 1.

Fig. 5 is a schematic structural diagram of the rotational positioning mechanism.

Fig. 6 is a schematic view of the connection of the mold rotator to the base.

Fig. 7 is a bottom view structural diagram of the figure.

Fig. 8 is a schematic view of the connection between the rotating base and the base.

Fig. 9 is a schematic view of the internal structures of the die rotator, the die core and the sub-core.

In the figure: the device comprises a fixed die component 1, a movable die component 2, a slide seat 3, a guide rail 4, a connecting seat 5, a base 6, a rotating seat 7, a rotating support seat 70, a driven gear 71, a die rotating body 8, a die core mounting surface 80, a die core mounting seat 81, a liquid inlet channel 82, a liquid outlet channel 83, an air guide channel 84, a driving component 9, a die core 10, a cooling channel 100, an air blowing through hole 101, a die opening and closing mechanism 11, an upper rack 110, a lower rack 111, an upper rack fixing seat 112, a lower rack fixing seat 113, a gear seat 114, a guide column 13, a connecting plate 14, a sliding seat 15, a rotating seat 16, a rotating positioning mechanism 17, a guide sleeve 170, a jacking component 171, a connecting rod 172, a positioning column 173, a positioning sleeve 174, an auxiliary power component 18, a female core 19, an annular liquid inlet groove 190, an annular liquid outlet groove 191, a cylinder sleeve 20, a liquid inlet channel 200, a liquid outlet channel 201, a sub-core 21, an annular air inlet groove 210, an air inlet channel 211, a liquid outlet channel, A base 22.

Detailed Description

The invention is further described with reference to the accompanying drawings and the detailed description below:

a rotatory injection molding system as shown in fig. 1, fig. 2, fig. 3 and fig. 4, including fixing cover half subassembly 1 on the injection molding machine, movable mould subassembly 2 that accessible injection molding machine drive removed, the cover half subassembly, all be equipped with the line seat 3 in the movable mould subassembly (line seat cooperation mold core is moulded plastics), lie in the cover half subassembly on the injection molding machine, be equipped with guide rail 4 between the lower extreme of movable mould subassembly, sliding on the guide rail is equipped with connecting seat 5, be fixed with base 6 on the connecting seat, be equipped with on the base and rotate seat 7, it is fixed with mould swivel 8 to rotate the seat, be equipped with on the base and be used for driving the rotatory drive assembly 9 of mould swivel, mould swivel 8 is located between cover half subassembly 1 and movable mould subassembly 2.

As shown in fig. 1 and 6, the die swivel 8 is provided with four die core mounting surfaces 80, each die core mounting surface is provided with a plurality of die core mounting seats 81 for fixing the die core, the die cores 10 are fixedly connected with the die core mounting seats 81 in a one-to-one correspondence manner, and the connecting seat 5 is further provided with a die opening and closing mechanism 11 for driving the die swivel 8 to slide along the guide rail 4; as shown in fig. 2 and 4, the mold opening and closing mechanism 11 includes an upper rack 110 and a lower rack 111, both of which are distributed in parallel with the guide rail, one end of the upper rack 110 is fixedly connected to the fixed mold component 1 through an upper rack fixing seat 112, one end of the lower rack 111 is fixedly connected to the movable mold component 2 through a lower rack fixing seat 113, a gear seat 114 is fixed on the connecting seat 5, and a gear engaged with the upper rack and the lower rack is rotatably disposed in the gear seat 114.

Two parallel guide columns 13 are arranged between the upper ends of the fixed die assembly 1 and the movable die assembly 2, a connecting plate 14 is arranged between the guide columns 13, the connecting plate 14 is connected with the guide columns 13 in a sliding mode through sliding seats 15, a rotating seat 16 is arranged on the connecting plate 14 in a rotating mode, and the upper end of a die rotating body is fixedly connected with the rotating seat; as shown in fig. 1 and 5, a rotary positioning mechanism 17 is arranged between the base 6 and the rotary seat 7, the positioning mechanism 17 includes a guide sleeve 170 fixed on the base and a jacking assembly 171 fixed at the bottom of the base, a connecting rod 172 is arranged inside the guide sleeve, the lower end of the guide sleeve 170 is fixedly connected with the base 6, the connecting rod 172 passes through the guide sleeve to form a sliding connection, a positioning column 173 is fixed at the upper end of the connecting rod 172, the lower end of the connecting rod is connected with the jacking assembly, and a plurality of positioning sleeves 174 matched with the positioning column are arranged at the bottom of the rotary seat 7; after rotating the seat and rotating an angle, jacking subassembly inserts the location of rotating the seat in the position sleeve after with the reference column jack-up, and jacking subassembly in this embodiment adopts the cylinder. An auxiliary pulling cylinder (omitted in the drawing) is arranged on the side face of the connecting plate, one end of the auxiliary pulling cylinder is connected with the side face of the connecting plate, the other end of the auxiliary pulling cylinder is connected with the injection molding machine, the auxiliary pulling cylinder is any one of an electric cylinder, an air cylinder and an oil cylinder, and the oil cylinder is adopted as the auxiliary pulling cylinder in the embodiment. An auxiliary power assembly 18 for driving the rotary base to rotate is fixed on the connecting plate 14, and the auxiliary power assembly in the embodiment adopts a motor.

As shown in fig. 6, 7, 8 and 9, each mold core 10 is provided with a cooling channel 100 therein, a liquid inlet channel 82 and a liquid outlet channel 83 which are respectively communicated with two ends of the cooling channel in each mold core are provided in the mold rotating body 8, a liquid supply assembly is provided at the lower end of the rotating base, the liquid supply assembly comprises a female core 19 fixed with the lower end of the rotating base 7, an annular liquid inlet groove 190 and an annular liquid outlet groove 191 are provided on the side wall of the female core, the lower end of the liquid inlet channel 82 extends to be communicated with the annular liquid inlet groove, the lower end of the liquid outlet channel 83 extends to be communicated with the annular liquid outlet groove, a liquid inlet channel 200 communicated with the annular liquid inlet groove and a liquid outlet channel 201 communicated with the annular liquid outlet groove are further provided in the liquid supply assembly.

The outer side cover of female core is equipped with the cylinder liner fixed with the base, rotate between female core and the cylinder liner and be connected, be equipped with sub-core 21 in the female core 19, sub-core rotates with female core to be connected, the lower extreme of sub-core 21 passes through base 22 and cylinder liner 20 fixed connection, the side of sub-core 21 is equipped with annular air inlet duct 210, be equipped with the inlet channel 211 that runs through the base in the sub-core 21, the upper end and the annular air inlet duct 210 intercommunication of inlet channel 211, be equipped with the through-hole 101 of blowing in the mold core 10, be equipped with the air guide channel 84 with the through-hole 101 intercommunication of blowing in the mould rotation 8, the lower extreme of air guide channel 84 passes and rotates the seat, communicate with annular air inlet duct 210 behind the female core. The driving assembly 9 in this embodiment is a motor, a rotary support seat 70 is disposed on the outer side of the rotary seat 7, the rotary support seat is fixedly connected to the base, a driven gear 71 is fixed on the outer side of the rotary seat 7, and a driving gear engaged with the driven gear is disposed at the shaft end of the driving assembly. The annular liquid inlet groove and the annular liquid outlet groove can be arranged on the outer side surface of the female core and also can be arranged on the inner side surface of the female core, and the liquid inlet channel and the liquid outlet channel can be arranged in the cylinder sleeve and also can be arranged in the sub-core; in this embodiment, annular feed liquor groove, annular play liquid groove all are located the lateral surface of female core, inlet channel, outlet channel are located the cylinder liner.

The principle of the invention is as follows with reference to the attached drawings: the die rotating body is provided with four die core mounting surfaces, and two opposite side surfaces correspond to the fixed die assembly and the movable die assembly; the initial state is as shown in figure 2, the movable mould component and the mould rotating body are in a separated state, the mould rotating body and the fixed mould component are in a separated state, a product to be injected is sleeved on mould cores (workpiece loading operation) on the front side and the rear side of the mould rotating body to be positioned, the mould rotating body is driven by the driving component to rotate for an angle of 90 degrees, the rotating seat is positioned by the rotating positioning mechanism, the mould cores sleeved with the product face the fixed mould component and the movable mould component, the injection molding machine drives the movable mould component and the mould rotating body to be matched, the mould rotating body and the fixed mould component are synchronously matched under the transmission action of the lower rack, the gear and the upper rack, the state after the mould matching is shown in figure 3, the mould cores on the left side and the right side on the mould are subjected to injection molding operation, the mould cores on the front side and the rear side are subjected to workpiece loading operation or demoulding operation, after the injection molding, the movable mould component and the mould rotating body are synchronously opened, the driving component drives the mould rotating body to rotate for 90 degrees again, and then, carrying out mold closing and injection molding again, then supplying cooling liquid into cooling channels in the mold cores (mold cores with injection molded products) on the front side and the rear side of the mold rotor through an external cooling system to cool the mold cores, after the mold cores are cooled, blowing through holes in the mold cores to enable the products to be smoothly demoulded, and then carrying out workpiece loading operation on the mold cores to wait for next injection molding. Through this kind of mould system, can realize that the product on the mold core circulates and moulds plastics, the effectual latency that has shortened, very big improvement the efficiency of moulding plastics.

The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions or modifications made based on the present invention to solve the same technical problems and achieve the same technical effects are within the scope of the present invention.