Double-color turret injection molding machine

Abstract

The utility model discloses a double-color turret injection molding machine which comprises a double-ejection unit, a mold locking unit and a mold plate assembly, a double-injection-molding station is arranged in the mold plate assembly, and a mold core ejection mechanism is arranged below the double-injection-molding station and corresponds to the double-injection-molding station. A rotating tower mechanism used for driving a mold core of an injection mold to rotate and change positions is arranged in the middle of the double injection molding stations, the rotating tower mechanism comprises a driving mechanism and a rotating tower rotating disc assembly, a plurality of connecting and positioning structures are arranged on the rotating tower rotating disc assembly, and an automatic demolding cylinder score assembly is further arranged on the mold plate assembly. According to the double-color turret injection molding machine, full-automatic operation from injection, mold opening and closing injection molding, ejection, transposition, color separation injection molding to demolding is achieved, the product quality and the production efficiency are greatly improved, and the turret injection molding machine can achieve double-color simultaneous injection molding and color-mixture-free high-quality molded products, can also be used as a single-color machine, and is wide in application range and good in universality.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection molding machine technical field especially relates to a double -colored turret injection molding machine. BACKGROUND

[0002] Because people's different needs for injection molding product, some products need to realize different color raw material injection molding, that is double -colored injection molding or multicolor injection molding, current carousel double -colored injection molding machine can only realize mixed color injection molding, and the connecting part of the different color part of the product formed will appear mixed color, leading to unclear boundary, directly affect the overall visual effect of product.

[0003] Therefore, in order to solve the existing injection molding machine can only realize mixed color injection molding, leading to unclear boundary of different color connecting part, product overall quality and visual effect are poor, manual operation pick efficiency is low and inconvenient, and mechanical hand pick efficiency is high but cost is higher, and there is an urgent need to design a double -colored turret injection molding machine. UTILITY MODEL CONTENTS

[0004] The utility model discloses a double -colored turret injection molding machine that can realize no mixed color phenomenon, product quality is high, visual effect is good, and can realize full -automatic production.

[0005] The utility model discloses a technical scheme that realizes the purpose of the application is adopted: a two-color turret injection molding machine, including double injection unit, locking mould unit and template assembly, is provided with double injection station in template assembly, and is provided with mould core ejection mechanism corresponding double injection station below double injection station, and is provided with turret mechanism for rotating and changing position of the mould core of injection mould in the middle position of double injection station, the turret mechanism includes driving mechanism and turret turntable assembly, a plurality of connection positioning structures are provided on the turret turntable assembly, and automatic stripping cylinder pulling assembly is also provided on the template assembly. The two-color turret injection molding machine, by setting up double injection unit, can realize the injection of different color injection raw materials in each injection unit, and double injection station is arranged on the template assembly corresponding to the double injection unit, two injection moulds are placed on the double injection station respectively during use, and the injection of different color parts of the same component of two injection moulds can be realized at the same time. In order to realize full-automatic two-color non-mixed color injection, the turret mechanism is arranged at the middle position of the double injection station, the turret mechanism is driven to rotate through the driving mechanism, the turret mechanism is provided with the turret turntable assembly, the connection positioning structure is arranged on the turret turntable assembly, and the mould core in the injection mould is connected with the connection positioning structure during use. Thus, the mould core can be rotated together through the turret turntable assembly, and the change position operation of the semi-finished product is completed. In specific application, the connection positioning structure can be arranged in pairs, so that the mould core is arranged in pairs in the connection positioning structure, two groups are arranged in the injection mould respectively, two groups are in the empty position, the double injection unit injects two injection moulds respectively, so that different parts of different colors of injection parts are formed on the mould core, then the mould is opened, the mould core ejection mechanism acts, the mould core with semi-finished product in the two injection moulds is ejected, the driving mechanism drives the turret turntable assembly to rotate 90 degrees, the two groups of mould cores with semi-finished products move away from the injection mould for semi-finished product cooling, and the other group of mould cores on the turret turntable assembly enters two injection moulds respectively, full-mould injection is carried out, then the mould is opened, the turret turntable continues to rotate 90 degrees, the cooled semi-finished product is driven into the corresponding injection mould for closing and injection moulding of the injection mould, then the mould is opened, and the two groups of different color products are formed once. Finally, the automatic stripping cylinder pulling assembly is used for stripping the finished injection part from the mould core, and the finished product is collected. The two-color turret injection molding machine is newly designed on the basis of the existing two-color injection molding machine. Different color parts are formed by the double injection unit and two different injection moulds in steps, the mould core is directly driven by the turret mechanism for semi-finished product change position cooling and re-injection, so that the occurrence of color mixing phenomenon in the injection process is avoided. Moreover, the two-color turret injection molding machine realizes full-automatic operation from injection, opening and closing of the mould, ejection, change position, color separation injection to stripping, greatly improves the quality and production efficiency of the product. In addition, the turret injection molding machine can realize two-color simultaneous injection, high-quality molding products without color mixing, and can also be used as a single-color machine, so the application range is wide, and the universal performance is good.

[0006] As preferred, the connecting positioning structure is a plurality of mold core connecting grooves arranged on the turret turntable assembly, and a mold core connecting piece is detachably connected to the mold core connecting groove. The plurality of mold core connecting grooves arranged on the turret turntable assembly can facilitate the grouping of the mold cores, the operation of the two groups of mold cores, and the cyclic injection molding of the two groups of mold core spaces. The detachable mold core connecting piece can connect different types of mold cores, facilitate the injection molding requirements of different mold cores for different products, make the injection molding machine more widely applicable, and meet the two-color non-mixed injection molding requirements of more products.

[0007] As preferred, the mold plate assembly includes a lower mold plate, a lower mold plate, and an upper mold plate. The double injection unit is arranged on the upper mold plate, the double injection station is arranged on the lower mold plate, the driving mechanism is arranged below the lower mold plate, and the turret turntable assembly is arranged above the lower mold plate and at the middle position of the lower mold plate. The double injection station is arranged on the lower mold plate, which facilitates the arrangement of the injection mold and the mold opening and closing operation. The turret turntable assembly is arranged at the middle position of the lower mold plate, which can facilitate the connection with the mold cores in the two groups of injection molds and drive the rotation of the mold cores, thereby achieving simplified design of the equipment. A set of turret mechanism can realize the injection molding of two-color non-mixed products.

[0008] As preferred, the mold locking unit includes two groups of mold cylinder assemblies and two groups of quick cylinder assemblies. The two groups of mold cylinder assemblies and the two groups of quick cylinder assemblies are arranged on the lower mold plate and connected with the lower mold plate. The mold locking unit provided with the two groups of mold cylinder assemblies and the two groups of quick cylinder assemblies can realize the simultaneous mold opening and closing operation of the two groups of injection molds, has good stability of the whole machine, consistent mold opening and closing operation, and effectively improves the production efficiency of the products.

[0009] As preferred, a turret mechanism mounting hole is arranged at the center position of the lower mold plate, the injection stations are arranged on both sides of the turret mechanism mounting hole, and a needle cylinder core shaft passing hole is arranged on each injection station. The turret mechanism mounting hole is arranged to facilitate the passing of the turret transmission shaft to facilitate the rotation of the turret turntable. The needle cylinder core shaft passing hole is arranged to facilitate the upward ejection of the needle cylinder assembly to realize the ejection operation of the mold core.

[0010] As preferred, the turret mechanism and the mold core ejection mechanism are integrally arranged on the mold cylinder assembly through a needle cylinder guide plate and a needle cylinder fixed plate. The turret mechanism and the mold core ejection mechanism are integrally arranged on the mold cylinder assembly, which can move together with the mold cylinder during the mold opening and closing process of the mold cylinder assembly, and will not interfere, thereby realizing the integrated design of the whole equipment and making the whole machine more compact.

[0011] As preferred, the mold core ejection mechanism includes two groups of needle cylinder assemblies, and the needle cylinder assembly is provided with a needle cylinder core shaft.

[0012] As preferred, the double injection unit comprises injection unit A and injection unit B, and screw barrel assembly one and screw barrel assembly two are arranged in the injection unit A and injection unit B respectively. The screw barrel assembly one and screw barrel assembly two in the two groups of injection units can realize the storage and injection of two different color injection materials, and of course, the same color can also be realized according to the needs, realizing single machine work.

[0013] As preferred, the injection mold comprises injection mold one and injection mold two, and the mold core moves with the turret mechanism. In order to realize double-color non-mixed injection molding, the double injection unit corresponds to the double injection mold, and different position injection mold cavities are arranged in each injection mold. The different position injection mold cavities can complete the injection molding of different parts of the same product, and then the turret mechanism is used for position changing of the semi-finished product to realize the injection molding of another part, so that the quality and production efficiency of the product are greatly improved.

[0014] As preferred, the driving mechanism comprises a servo motor, a speed reducer and a turret transmission shaft, and the turret turntable assembly is connected with the turret transmission shaft.

[0015] The double-color turret injection molding machine can realize the step-by-step molding of different parts of different colors through the double injection unit and two different injection molds, and the mold core is directly driven by the turret mechanism for position changing and cooling of the semi-finished product before injection molding, so that the occurrence of color mixing phenomenon in the injection molding process is avoided, and the full-automatic operation from injection, mold opening and closing, ejection, position changing, color separation injection to demolding is realized, and the quality and production efficiency of the product are greatly improved. In addition, the turret injection molding machine can realize double-color simultaneous injection molding without color mixing, and can also be used as a single-color machine, so that the use range is wide and the general performance is good. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structural schematic view of the double-color turret injection molding machine.

[0017] Figure 2 is a rear view of the double-color turret injection molding machine.

[0018] Figure 3 is a left view of the double-color turret injection molding machine.

[0019] Figure 4 is a partial structural schematic view of the double-color turret injection molding machine.

[0020] Figure 5 is a structural schematic view of the mold core ejection mechanism and the turret mechanism.

[0021] Figure 6 is a kind of application structure schematic diagram of the transfer tower mechanism and injection mold in the utility model.

[0022] Figure 7 is Figure 6 top view.

[0023] Figure 8 is Figure 7 A-A section view in

[0024] In the figure: 1, double injection unit, 2, mold locking unit, 3, transfer tower mechanism;

[0025] 4, mold plate assembly, 41, lower mold plate of cylinder, 42, lower mold plate, 43, upper mold plate, 44, mold cylinder column, 45, mold cylinder installation site, 46, injection unit installation site, 47, needle cylinder core shaft passes through movable hole, 48, transfer tower mechanism installation hole;

[0026] 5, mold cylinder assembly, 51, mold cylinder sleeve, 52, mold cylinder core shaft;

[0027] 6, fast cylinder assembly;

[0028] 7, mold core ejection mechanism, 71, needle cylinder guide plate, 72, needle cylinder fixed plate, 73, needle cylinder assembly, 74, needle cylinder sleeve, 75, needle cylinder rear cover, 76, needle cylinder front cover, 77, needle cylinder core shaft, 78, needle cylinder guide rod, 79, transfer tower transmission shaft installation hole;

[0029] 8, drive mechanism, 81, servo motor, 82, speed reducer, 83, transfer tower transmission shaft;

[0030] 9, transfer tower turntable assembly, 91, transfer tower turntable, 92, turntable core shaft, 93, mold core connecting groove, 94, mold core connecting piece;

[0031] 10, injection mold, 101, mold core, 102, injection mold one, 103, injection mold two;

[0032] 11, screw barrel assembly one, 12, screw barrel assembly two;

[0033] 20, automatic demolding cylinder pulling assembly, 21, cylinder pulling fixed seat, 22, cylinder pulling, 23, cylinder pulling guide rod, 24, cylinder pulling guide rod fixed plate one, 25, cylinder pulling guide rod fixed plate two, 26, cylinder pulling support plate;

[0034] 30, guide rail assembly;

[0035] 40, finished product discharge chute;

[0036] Injection unit A, injection unit B. DETAILED DESCRIPTION

[0037] The technical scheme of the utility model will be explained in further detail below by specific embodiments and in conjunction with the drawings.

[0038] Embodiment 1

[0039] In Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 In the embodiment shown, a two-color rotary table injection molding machine comprises a double injection unit 1, a mold clamping unit 2, a rotary table mechanism 3, a mold plate assembly 4 and a mold core ejection mechanism 7 arranged on a machine frame.

[0040] The double injection unit 1 can realize separate injection operation of different color injection materials, and the mold core ejection mechanism 7 is used to realize ejection operation of semi-finished products or finished products and mold cores. The rotary table mechanism 3 is arranged to drive the mold cores in the injection mold and the semi-finished products or finished products thereon to rotate and change position, so as to realize different color injection molding of different positions of the products and ensure that no color mixing phenomenon occurs.

[0041] A double injection station is arranged in the mold plate assembly 4, and a mold core ejection mechanism 7 is arranged below the double injection station corresponding to the double injection station. A rotary table mechanism 3 for driving the mold cores of the injection mold to rotate and change position is arranged at the middle position of the double injection station. The rotary table mechanism 3 comprises a driving mechanism 8 and a rotary table turntable assembly 9. A plurality of connection positioning structures are arranged on the rotary table turntable assembly 9. An automatic demolding and cylinder pulling assembly 20 is further arranged on the mold plate assembly 4.

[0042] The connection positioning structure is a plurality of mold core connection grooves 93 arranged on the rotary table turntable assembly 9. A mold core connecting piece 94 is detachably connected to the mold core connection groove 93.

[0043] The mold clamping unit 2 comprises two groups of mold cylinder assemblies 5 and two groups of quick cylinder assemblies 6.

[0044] The mold plate assembly 4 comprises a cylinder lower mold plate 41, a lower mold plate 42, an upper mold plate 43 and a mold cylinder machine column 44. Two mold cylinder mounting positions 45 are arranged on the cylinder lower mold plate 41. Two injection unit mounting positions 46 are arranged on the upper mold plate 43. Two needle cylinder core shaft penetrating movable holes 47 and a rotary table mechanism mounting hole 48 are arranged on the lower mold plate 42.

[0045] A finished product discharge chute 40 is further arranged on the front side of the lower mold plate 42. The finished product discharge chute 40 is used to realize collection of finished products.

[0046] The mold cylinder mounting position 45, the injection unit mounting position 46 and the needle cylinder core shaft penetrating movable hole 47 are coaxially arranged, thereby forming a double injection mechanism.

[0047] The double injection unit 1 comprises injection unit A and injection unit B which are independently arranged and can work independently or simultaneously.

[0048] The turret mechanism 3 is connected with the mold cylinder assembly 5 and moves with the mold cylinder assembly 5.

[0049] The mold cylinder assembly 5 is arranged between the lower mold plate and the lower cylinder plate, and the two groups of quick cylinder assemblies 6 are arranged at the two ends of the lower cylinder plate outside the mold cylinder assembly and are connected with the lower mold plate.

[0050] Specifically, the mold cylinder assembly 5 comprises a mold cylinder sleeve 51 and a mold cylinder shaft 52, the bottom of the mold cylinder sleeve 51 is connected with the lower mold surface of the lower mold plate 42, and the mold cylinder shaft 52 is fixedly connected with the lower cylinder plate 41, so that the mold locking and opening operation is realized through the movement of the mold cylinder assembly 5.

[0051] The mold core ejection mechanism 7 is arranged inside the needle cylinder shaft passing movable hole 47 and is connected with the mold cylinder assembly 5.

[0052] As shown in Figure 5 The mold core ejection mechanism 7 comprises a needle cylinder guide plate 71, a needle cylinder fixed plate 72, and two groups of needle cylinder assemblies 73 arranged on the needle cylinder guide plate 71, the needle cylinder guide plate 71 and the needle cylinder fixed plate 72 are arranged in parallel and are fixedly connected with the outer wall of the mold cylinder sleeve 51 respectively, and the needle cylinder fixed plate 72 is arranged above the needle cylinder guide plate 71.

[0053] Each group of the needle cylinder assembly 73 comprises a needle cylinder sleeve 74, a needle cylinder rear cover 75, a needle cylinder front cover 76, and a needle cylinder shaft 77.

[0054] The needle cylinder rear cover 75 is fixed on the needle cylinder guide plate 71, the needle cylinder front cover 76 is connected on the lower plate surface of the needle cylinder fixed plate 72, the needle cylinder shaft 77 extends upward through the needle cylinder fixed plate 72, and the needle cylinder shaft passing movable hole is arranged on the lower mold plate 42, when the ejection operation of the injection product in the injection mold is needed, the needle cylinder assembly 73 works, the needle cylinder shaft 77 ejects upward, the injection product with the mold core is ejected from the injection mold, the mold core is connected with the turret mechanism, the turret mechanism drives the rotation by a certain angle, and the next color injection or finished product is offline.

[0055] Four needle cylinder guide rods 78 are further arranged on the needle cylinder fixed plate 72.

[0056] The turret transmission shaft mounting hole 79 is arranged at the middle position of the needle cylinder fixed plate 72.

[0057] The turret mechanism 3 is arranged in the middle of the double injection molding station to drive the rotation of the mold core of the injection mold.

[0058] The driving mechanism 8 comprises a servo motor 81 and a speed reducer 82 connected with the servo motor, the output shaft of the speed reducer 82 is connected with a turret transmission shaft 83, the turret transmission shaft 83 is connected with a turret turntable assembly 9,

[0059] As shown in Figure 6 , Figure 7 , Figure 8 The turret turntable assembly 9 comprises a turret turntable 91 and a turntable shaft 92. The turntable shaft 92 is in transmission connection with the turret transmission shaft 83, and the turret turntable 91 is arranged on the turntable shaft 92 and is driven to rotate by the turntable shaft 92.

[0060] In this embodiment, the turret turntable 91 is provided with four mold core connecting grooves 93 in a cross structure. The mold core connecting grooves 93 can be arranged on the upper disc surface of the turret turntable or on the lower disc surface of the turret turntable.

[0061] The mold core connecting grooves 93 are detachably mounted with mold core connecting pieces 94 inside, the mold core connecting pieces 94 are used to connect with the mold core 101 in the injection mold 10 and can drive the mold core 101 to move and rotate. In this embodiment, the mold core connecting piece 94 adopts a mold core connecting block, of course, the mold core connecting piece 94 can also adopt other structures, which are used to realize the connection with the mold core assembly and drive the mold core assembly to move. The mold core connecting piece 94 can be replaced as needed to realize the connection with different mold cores and drive the mold core to move up and down and rotate.

[0062] As shown in Figure 3 , Figure 4 It also comprises an automatic demolding pulling cylinder assembly 20 for realizing the demolding of the injection product, the automatic demolding pulling cylinder assembly 20 is arranged on the lower mold plate through a guide rail assembly 30.

[0063] The automatic demolding pulling cylinder assembly 20 comprises a pulling cylinder fixing seat 21, a pulling cylinder 22, a pulling cylinder guide rod 23, a pulling cylinder guide rod fixing plate one 24, a pulling cylinder guide rod fixing plate two 25 and a group of pulling cylinder support plates 26, the pulling cylinder fixing seat 21 is arranged on the rear side of the lower mold plate 42 and faces the turret mechanism, the pulling cylinder 22 comprises a pulling cylinder sleeve, a pulling cylinder shaft and a pulling cylinder front cover, the pulling cylinder front cover is fixed on the pulling cylinder fixing seat, the pulling cylinder shaft is arranged horizontally and perpendicularly to the pulling cylinder fixing seat 21, the pulling cylinder fixing seat 21 and the pulling cylinder guide rod fixing plate one 24 and the pulling cylinder guide rod fixing plate two 15 are respectively provided with pulling cylinder shaft stroke holes.

[0064] The pulling cylinder guide rod fixing plate two 25 is connected with the pulling cylinder fixing seat 21, and the pulling cylinder guide rod fixing plate one 24 is arranged on the front side of the lower die plate 42 facing the discharging.

[0065] The pulling cylinder guide rod 23 is slidably arranged between the pulling cylinder guide rod fixing plate one 24 and the pulling cylinder guide rod fixing plate two 25, and two pulling cylinder support plates 26 are arranged on the lower die plate where the turret mechanism is located, and the pulling cylinder guide rod 23 is slidably arranged in the pulling cylinder support plate 26.

[0066] The automatic injection molding process of the double-color turret injection molding machine is illustrated by taking the injection molded product having a blue main body and black main bodies at both ends of the blue main body as an example.

[0067] Two sets of injection molds 10 are arranged on the lower die plate 42, and the two sets of injection molds 10 are respectively arranged as injection mold one 102 and injection mold two 103, the injection mold one is used for molding the blue main body part of the injection molded product, and therefore, a mold cavity for molding the blue main body part of the injection molded product is arranged in the injection mold one, and the injection mold two is used for molding the black main body part at both ends of the injection molded product, and therefore, a mold cavity for molding the black main body part of the injection molded product is arranged in the injection mold two.

[0068] Four mold core connecting pieces 94 are connected in the mold core connecting groove 93 of the turret turntable 91, and a plurality of mold cores 101 for a plurality of injection molded products are respectively connected to the four mold core connecting pieces 94, and the plurality of mold cores can realize one-time injection molding of a plurality of products.

[0069] Different colors of injection molding materials are respectively added to the injection unit A and the injection unit B, that is, blue injection molding materials are added to the injection unit A, and black injection molding materials are added to the injection unit B.

[0070] The injection molding machine is started, and the two sets of injection molds are simultaneously clamped and locked, and then the blue injection molding materials and the black injection molding materials are respectively injected into the injection mold one 102 and the injection mold two 103 through the injection unit A and the injection unit B, and the blue main body and the black main body of the injection molded product are respectively molded in the injection mold A and the injection mold B.

[0071] After the pressure molding, the mold is opened at the same time, the ejector pin cylinder assembly 73 acts to eject the mold cores 101 with semi-finished products in the injection mold A and the injection mold B, the turret mechanism 3 acts to drive the mechanism 8 to rotate the turret turntable 91, thereby driving the mold cores 101 thereon to rotate by 90 degrees, at this time, the two mold cores 101 in the empty position are respectively rotated to the injection mold one and the injection mold two, and the two mold cores 101 with semi-finished products are in the empty position to cool the semi-finished products. Since the semi-finished products are cooled before the next color injection, there is no color mixing phenomenon.

[0072] The next set of semi-products is injection molded with the mold closed and locked, and then the mold is opened and the turret mechanism 3 is rotated 90 degrees.

[0073] At this time, the black body semi-product in the first set of semi-products is rotated into injection mold one for blue body injection molding, and the blue body semi-product is rotated into injection mold two B for black body injection molding. The mold is closed, locked, and injection molded.

[0074] The mold is opened, and at this time, the injection mold one and the injection mold two have molded double-color injection molded products.

[0075] The turret mechanism is rotated 90 degrees, and the double-color injection molded products are rotated to the neutral position, and the other set of semi-products is rotated to the corresponding color injection mold that is not injection molded, and the mold is closed and locked for injection molding.

[0076] At the same time, the molded two sets of double-color injection molded products are demolded from the mold core 101 under the action of the automatic demolding and cylinder pulling assembly 20 and are pushed out of the mold core, and are discharged through the product discharge chute 40 for collection, thereby completing the rapid injection molding of two colors of a product and realizing non-mixed color injection molding.

[0077] In another embodiment, when the same color injection molded product needs to be produced, the same color injection material can be added to the injection unit A and the injection unit B respectively to realize the injection molding of the same color product.

[0078] In another embodiment, the double-color turret injection molding machine can also realize the simultaneous injection molding of the same color and different products, that is, different product forming cavities can be arranged in the injection mold one and the injection mold two, and the mold is closed and injection molded and opened at the same time, and different products are injection molded at one time, which is applied to the simultaneous molding of different parts in different equipment, greatly saving the production time and the injection molding process.

[0079] The double-color turret injection molding machine realizes non-mixed color injection molding and full automation, saves labor, reduces cost, realizes automatic material taking, can more widely meet the needs of customers, has a wider application market. Moreover, the double-color turret injection molding machine can be used for two single-station machines and non-mixed color injection molding of a double-color machine, realizes one machine with multiple uses, improves production efficiency, and also meets the requirements of different needs and configurations of customers.

[0080] The double-color rotary tower injection molding machine is designed newly based on the existing double-color injection molding machine, different color parts are respectively formed by double injection units and two different injection molds in step, the mold core is directly driven by the rotary tower mechanism to carry out semi-finished product transposition cooling and re-injection, so that the color mixing phenomenon of different colors in the injection molding process is avoided.

[0081] The above embodiments are only part of the embodiments of the present application, but not all the embodiments. Meanwhile, based on the embodiments described in the present application, all other embodiments obtained by those skilled in the art on the basis of the technical solutions of the present application without creative labor should belong to the protection scope of the present application.

Claims

1. A two-color transfer-mold machine comprising a double injection unit (1), a clamping unit (2) and a mold plate assembly (4), characterized in that: The double injection position is arranged in the template assembly (4), the mold core ejection mechanism (7) is arranged below the double injection position, the turret mechanism (3) for rotating and switching the mold core of the injection mold is arranged at the middle position of the double injection position, the turret mechanism (3) comprises a driving mechanism (8) and a turret turntable assembly (9), a plurality of connecting and positioning structures are arranged on the turret turntable assembly (9), and the automatic demolding and cylinder pulling assembly (20) is further arranged on the template assembly (4).

2. The two-color turntable injection molding machine according to claim 1, characterized by: The connecting and positioning structure is a plurality of mold core connecting grooves (93) arranged on the turret turntable assembly (9), and the mold core connecting piece (94) is detachably connected on the mold core connecting groove (93).

3. The two-color turntable injection molding machine according to claim 1, characterized in that: The template assembly (4) comprises a cylinder lower template (41), a lower template (42) and an upper template (43), the double injection unit (1) is arranged on the upper template (43), the double injection position is arranged on the lower template (42), the driving mechanism (8) is arranged below the lower template (42), and the turret turntable assembly (9) is arranged above the lower template (42) and at the middle position of the lower template.

4. The two-color turntable injection molding machine according to claim 3, characterized in that: The mold locking unit (2) comprises two groups of mold cylinder assemblies (5) and two groups of quick cylinder assemblies (6), the two groups of mold cylinder assemblies (5) and the two groups of quick cylinder assemblies (6) are arranged on the cylinder lower template (41) and connected with the lower template (42).

5. The two-color turntable injection molding machine according to claim 3, characterized in that: The turret mechanism mounting hole (48) is arranged at the center position of the lower template (42), the injection positions are arranged on both sides of the turret mechanism mounting hole (48), and the needle cylinder core shaft penetrating movable holes (47) are arranged on the two injection positions respectively.

6. The two-color rotary injection molding machine according to claim 5, characterized in that: The turret mechanism (3) and the mold core ejection mechanism (7) are integrally arranged on the mold cylinder assembly (5) through a needle cylinder guide plate (71) and a needle cylinder fixed plate (72).

7. A two-color turntable injection molding machine according to any one of claims 1 to 6, characterized in that: The mold core ejection mechanism (7) comprises two groups of needle cylinder assemblies (73), and the needle cylinder core shaft (77) is arranged in the needle cylinder assembly (73).

8. A two-color turntable injection molding machine according to any one of claims 1 to 6, characterized in that: The double injection unit (1) comprises an injection unit A and an injection unit B, and screw barrel assembly one (11) and screw barrel assembly two (12) are arranged in the injection unit A and the injection unit B respectively.

9. The dual color turntable injection molding machine according to any one of claims 1 to 6, characterized in that: The injection mold (10) is arranged on the double injection position, the injection mold (10) comprises an injection mold one (102) and an injection mold two (103), and the mold core (101) moves together with the turret mechanism in the injection mold one (102) and the injection mold two (103).

10. The dual color turntable injection molding machine according to any one of claims 1 to 6, characterized in that: The driving mechanism (8) comprises a servo motor (81), a speed reducer (82) and a turret transmission shaft (83), and the turret turntable assembly (9) is connected with the turret transmission shaft (83).

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