A high-efficiency two-color injection mold

Abstract

The present invention relates to the field of injection mold technology, and in particular to a high-efficiency two-color injection mold, the technical solution of which includes a mounting frame, a rotating chassis provided at the bottom of the mounting frame, a plurality of mold lifting control mechanisms provided at the upper end of the mounting frame, a rotating motor connected to the lower end of the rotating chassis, and an inner module injection molding mechanism and an outer module injection molding mechanism provided on both sides of the upper end of the rotating chassis. The present invention is provided with a rotating injection molding module frame, and two groups of injection molds are provided on the rotating chassis respectively. The two injection molds are used to inject the inner mold and the outer mold respectively, and the upper and lower end parts of the injection mold can be separated and reassembled by the mold lifting control mechanism. The overall mechanism realizes rapid two-color injection molding, and realizes the change of the bottom mold cavity and the top mold cavity, avoiding the extra step of taking out the product, and further improving work efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of injection molds, in particular to a high-efficiency two-color injection mold. Background Art

[0002] The demand for plastic products is increasing, especially in the automotive, electronics, and medical fields, where applications are emerging on a large scale. Injection molds are required to be highly precise, efficient, and versatile. With the diversification of plastic materials, mold designs are becoming more sophisticated, and precision requirements are increasing. Two-shot injection molds, equipped with two different injection molding devices, achieve a seamless combination of two materials, or different colors of a single material, in a single molding process, thus meeting the dual demands of functionality and aesthetics.

[0003] The prior art also has the following defects during use:

[0004] In the process of injection molding of the two-color injection mold in the prior art, the products are mainly injection molded products with two colors, inner and outer respectively. If the inner mold of some products is surrounded by the outer mold, the bottom of the molding cavity cannot be set well during the injection molding process. In order to achieve the situation where the inner mold is covered by the outer mold, in addition to changing the upper mold cavity, the lower mold cavity must also be changed. At present, more processing methods are to change the mold for injection molding, which will waste a lot of processing time as a whole, thereby extending the production time of the overall injection molding, which is not conducive to improving the production efficiency of injection molding. In addition, the two-color injection mold is mainly divided into two injection moldings. If there is a defect in the product of the first injection molding, it is not easy to find it. If the product is directly injected for the second time, it is easy to cause the entire product to become waste, wasting the material for the second injection molding. In addition, the injection molded product is directly molded on the bottom surface of the injection molding, which is not conducive to taking it out, and the overall processing efficiency is low.

[0005] In view of this, we propose an efficient two-color injection mold to solve the existing problems. Summary of the Invention

[0006] The object of the present invention is to provide a high-efficiency two-color injection mold to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: an efficient two-color injection mold, comprising a mounting frame, a rotating chassis is provided at the bottom of the mounting frame, a plurality of mold lifting control mechanisms are provided at the upper end of the mounting frame, a rotating motor is connected to the lower end of the rotating chassis, an inner module injection molding mechanism and an outer module injection molding mechanism are respectively provided on both sides of the upper end of the rotating chassis, the inner module injection molding mechanism comprises an inner mold injection layer, an inner mold forming layer and a first bottom mold layer, the outer module injection molding mechanism comprises an outer mold injection layer, an outer mold forming layer and a second bottom mold Layer, the inner mold molding layer and the outer mold molding layer are both provided with an injection molding lower mold, the inner mold injection molding upper mold is provided in the inner mold injection molding layer, the outer mold injection molding upper mold is provided in the outer mold injection layer, the inner mold injection layer is provided with a movable rod pressure piece downward, and the outer mold injection layer is provided with a dynamic rod pressure piece downward, and multiple groups of seesaw mechanisms are provided inside the first bottom mold layer and the second bottom mold layer, the seesaw mechanism is provided with a movable rod upward at one end thereof, and a dynamic rod upward at one end thereof, and the dynamic rod is connected to the injection molding lower mold.

[0008] Preferably, the sides of the first bottom mold layer and the second bottom mold layer are both provided with bottom opening grooves, and the inside of the first bottom mold layer and the second bottom mold layer are both provided with edge connectors, a bottom plate is installed in the edge connector, the upper end of the bottom plate is connected to multiple groups of molding cavity lower end parts, the top of the molding cavity lower end part is provided with a molding product, and the bottom of the mounting frame is provided with two groups of mold auxiliary blocks.

[0009] Preferably, the die lifting control mechanism includes a die lifting control member, a die lifting moving member and a die lifting action member, the die lifting control member is downwardly connected to the die lifting moving member, and the die lifting moving member is downwardly connected to the die lifting action member.

[0010] Preferably, the lower end piece of the molding cavity is provided with multiple groups of molding cavities upward, the interior of the injection molding lower mold is connected with multiple groups of auxiliary bottom cavity pieces, the lower end piece of the molding cavity is provided in the auxiliary bottom cavity piece, and the upper end of the auxiliary bottom cavity piece is provided with a bottom cavity.

[0011] Preferably, an inner mold molding cavity is provided at the lower end of the inner mold injection molding upper mold.

[0012] Preferably, an outer mold molding cavity is provided at the lower end of the outer mold injection molding upper mold.

[0013] Preferably, the seesaw mechanism includes a seesaw mounting seat and a seesaw member, the seesaw mounting seat is provided with a mounting shaft, the seesaw member is connected to the seesaw mounting seat through the mounting shaft, the outer end of the seesaw member is connected to a movable rod connecting block, the movable rod is connected to the seesaw member through the movable rod connecting block, the inner end of the seesaw member is connected to a movable rod connecting block, the movable rod is connected to the seesaw member through the movable rod connecting block.

[0014] Preferably, the upper end of the outer module injection molding mechanism is upwardly connected to a second color injection molding port, and the upper end of the inner module injection molding mechanism is upwardly connected to a first color injection molding port.

[0015] Preferably, the sides of the outer mold injection layer and the inner mold injection layer are both provided with multiple groups of mold lifting holes, and the outer sides of the inner module injection molding mechanism and the outer module injection molding mechanism are both provided with multiple groups of fixing mechanisms.

[0016] Preferably, an annular groove is provided between the rotating chassis and the bottom of the mounting frame, the mounting frame is provided with a sliding groove around the annular groove, the mold-taking auxiliary block is provided in the annular groove, the inner side of the inner module injection molding mechanism and the outer module injection molding mechanism are both provided on the rotating chassis, the outer side of the inner module injection molding mechanism and the outer module injection molding mechanism are downwardly connected with a connecting piece, and the inner module injection molding mechanism and the outer module injection molding mechanism are both slidably installed in the sliding groove through the connecting piece.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention is provided with a rotating injection molding module frame, and two groups of injection molds are respectively provided on the rotating chassis. The two injection molds are used for injection molding of the inner mold and the outer mold respectively, and the upper and lower end parts of the injection mold can be separated and recombined by a mold lifting control mechanism. When the injection molding mechanism of the inner module is performing injection molding, the movable rod will drive the movable rod upward downward, so that the bottom cavity of the injection cavity and the upper end mold cavity fit together. After the injection molding of the inner mold is completed, the lower end module moves with the once-injected product to the mechanism of the injection outer mold. The mechanism of the injection outer mold will drive the movable rod downward and the movable rod upward, so that a certain gap is generated between the injection bottom cavity and the upper end mold cavity, so that the injection outer mold product can completely wrap the inner mold product, so that the overall mechanism realizes rapid two-color injection molding, and realizes the change of the bottom mold cavity and the top mold cavity, avoids the extra step of taking out the product, and further improves work efficiency.

[0019] The present invention provides a mold-taking auxiliary block near the rotating chassis. When the injection molding base drives the primary injection molded product to move to the secondary injection molding station, the mold-taking auxiliary block can lift the lower end part of the molding cavity through the slot on the injection molding base, so that the primary injection molded product moves upward a distance, which is convenient for staff to observe whether there are defects in the product. Because multiple pieces are injection molded at one time, there may be a few defective products in the continuous injection molding process. If there are defective products in the primary injection molding, the primary injection molded product can be directly taken out and put into the primary injection molded sample prepared in advance, avoiding secondary injection molding of the defective product and saving some costs. Moreover, when the injection molding base drives the product to continue to rotate after the secondary injection molding is completed, the mold-taking auxiliary block also lifts the product, which is convenient for staff to remove the mold, thereby improving the overall mold removal work efficiency and making the overall product removal more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front view structural schematic diagram of the present invention;

[0021] Figure 2 Schematic diagram of the three-dimensional structure of the inner and outer module injection molding mechanism of the present invention;

[0022] Figure 3 This is a schematic diagram of the internal three-dimensional structure of the inner and outer module injection molding mechanism of the present invention;

[0023] Figure 4 Schematic diagram of the three-dimensional structure of the seesaw mechanism of part A;

[0024] Figure 5 This is a partial three-dimensional structural diagram of the inner and outer module injection molding mechanism of the present invention;

[0025] Figure 6 Schematic diagram of the three-dimensional structure of the lower mold for injection molding of part B;

[0026] Figure 7 This is a schematic diagram of the positions of the lower mold, product, and lower end piece of the molding cavity during the inner mold injection process;

[0027] Figure 8 This is a schematic diagram of the positions of the lower mold and product as well as the lower end piece of the molding cavity during the external mold injection molding process;

[0028] Figure 9 Schematic diagram of the three-dimensional structure of the rotating chassis of the present invention;

[0029] Figure 10 Schematic diagram of the top view of the rotating chassis and its module injection molding mechanism of the present invention;

[0030] Figure 11 Schematic diagram of part of the internal structure of the bottom mold layer of the present invention.

[0031] In the figure: 1. Mounting frame; 2. Inner module injection molding mechanism; 201. Inner mold injection layer; 202. Inner mold forming layer; 203. First bottom mold layer; 204. Active rod pressure piece; 205. Inner mold injection molding upper mold; 3. Outer module injection molding mechanism; 301. Outer mold injection layer; 302. Outer mold forming layer; 303. Second bottom mold layer; 304. Active rod pressure piece; 305. Outer mold injection molding upper mold; 4. Second color injection port; 5. First color injection port; 6. Mold lifting control mechanism; 601. Mold lifting control member; 602. Mold lifting movable member; 603 , mold lifting action part; 7, mold removal auxiliary block; 8, rotating chassis; 9, rotating motor; 10, fixing mechanism; 11, seesaw mechanism; 1101, movable rod; 1102, movable rod connecting block; 1103, seesaw member; 1104, movable rod connecting block; 1105, movable rod; 1106, seesaw mounting seat; 1107, mounting shaft; 12, injection molding lower mold; 13, auxiliary bottom cavity member; 14, bottom opening groove; 15, molding cavity lower end member; 16, bottom cavity; 17, annular groove; 18, sliding groove; 19, edge connecting member; 20, bottom plate. DETAILED DESCRIPTION

[0032] The technical solution of the present invention is further described below with reference to the accompanying drawings and specific embodiments. Example

[0033] like Figures 1-11 As shown, the present invention proposes an efficient two-color injection mold, including a mounting frame 1, a rotating chassis 8 is provided at the bottom of the mounting frame 1, a plurality of mold lifting control mechanisms 6 are provided at the upper end of the mounting frame 1, a rotating motor 9 is connected to the lower end of the rotating chassis 8, and an inner module injection molding mechanism 2 and an outer module injection molding mechanism 3 are respectively provided on both sides of the upper end of the rotating chassis 8, the inner module injection molding mechanism 2 includes an inner mold injection layer 201, an inner mold forming layer 202 and a first bottom mold layer 203, the outer module injection molding mechanism 3 includes an outer mold injection layer 301, an outer mold forming layer 302 and a second bottom mold layer 303, the inner mold forming layer 202 and the outer mold forming layer An injection molding lower mold 12 is provided inside 302, an inner mold injection molding upper mold 205 is provided inside the inner mold injection molding layer 201, an outer mold injection molding upper mold 305 is provided inside the outer mold injection molding layer 301, the inner mold injection molding layer 201 is provided with a movable rod pressure piece 204 downwardly, and the outer mold injection molding layer 301 is provided with a movable rod pressure piece 304 downwardly, and multiple groups of seesaw mechanisms 11 are provided inside the first bottom mold layer 203 and the second bottom mold layer 303, the seesaw mechanism 11 is provided with a movable rod 1101 at the outer end upwardly, and the seesaw mechanism 11 is provided with a movable rod 1105 at the inner end upwardly, and the movable rod 1105 is connected to the injection molding lower mold 12.

[0034] The double-color injection mold is divided into two injections of different colors. The color of the first injection is used to inject the inner mold, and the color of the second injection is used to inject the outer mold. The interior of the injection molding lower mold 12 is provided with an auxiliary bottom cavity part 13, and the top of the auxiliary bottom cavity part 13 is provided with a bottom cavity 16 for molding, and the middle of the auxiliary bottom cavity part 13 is provided with a lower end part of the molding cavity. The top of the molding cavity lower end part 15 is the main molding cavity of the molding. The first injection is used to mold the inner mold. Starting from the inner module injection molding mechanism 2, the inner mold injection layer 201 is partially and The inner mold forming layer 202 and the first bottom mold layer 203 are constructed as the first step of the inner module injection molding mechanism. When the inner mold injection layer 201 is installed into the inner mold forming layer 202, the movable rod pressing piece 204 in the inner mold injection layer 201 will cause the movable rod 1101 to move downward, and through the action of the rocker mechanism 11, the internal movable rod 1105 is lifted upward, and the movable rod 1105 is connected to the injection molding lower mold 12, so the injection molding lower mold 12 will drive The auxiliary bottom cavity part 13 moves upward, and the lower end part 15 of the molding cavity does not move during this process, so the bottom cavity 16 of the auxiliary bottom cavity part 13 moves upward to a certain extent relative to the molding cavity on the lower end part 15 of the molding cavity, and subsequent injection molding is carried out. When the outer module is injected, the movable rod pressure part 304 provided in the outer mold injection layer 301 will cause the movable rod 1105 to move downward. Similarly, one side of the movable rod 1101 will move up, and the outer mold injection layer 301 leaves enough space for the movable rod 1101 to move. When the movable rod 1105 moves downward, it will drive the injection molding lower mold 12 to move downward. Because it has undergone one injection molding, the downward moving injection molding lower mold 12 will drive the internal auxiliary bottom cavity part 13 and the bottom cavity 16 to move downward to a certain extent, so a certain space will be left under the product of the first injection molding. When the second injection molding is carried out, the material of the second injection can wrap the product of the first injection, thereby realizing a complete secondary injection molding. The rotating motor 9 is a servo motor.

[0035] During the overall injection molding process, the inner mold injection layer 201 and its internal injection molding mechanism and the upward part can be separated from the inner mold molding layer 202 and the first bottom mold layer 203 at the lower end. Similarly, the outer mold injection layer 301 and its internal injection molding mechanism and the upward part can be separated from the outer mold molding layer 302 and the second bottom mold layer 303 at the lower end. A rotating disk is provided at the bottom of the overall injection molding mechanism, which will drive the inner mold molding layer 202 and the first bottom mold layer 203 to move to the lower end of the outer mold injection layer 301 after the separation is completed. That is, the inner mold molding layer 202 and the first bottom mold layer 203 and their internal mechanisms and the outer mold molding layer 302 and the second bottom mold layer 303 and their internal structures are essentially the same mechanical components. Go to different places to realize different injection molding functions. One injection molding is carried out in the inner module injection molding mechanism 2. After the first injection molding is completed, the inner module injection molding mechanism 2 is split, and the inner mold forming layer 202 and the first bottom mold layer 203 are transferred to the bottom of the outer mold injection layer 301 and assembled. Similarly, the overall work flow of the outer module injection molding mechanism 3 is similar to that of the inner mold injection molding mechanism. The outer module injection molding mechanism 3 is split into upper and lower molds, and then the outer mold forming layer 302 and the second bottom mold layer 303 are transferred. After unloading during the transfer process, they are transferred to the lower end of the inner mold injection layer 201 for the next injection molding. After all, they are split and then transferred. The whole is recycled and one-color injection molding, two-color injection molding and unloading are performed in turn to complete the entire injection molding step.

[0036] Furthermore, the sides of the first bottom mold layer 203 and the second bottom mold layer 303 are both provided with bottom opening grooves 14, and the insides of the first bottom mold layer 203 and the second bottom mold layer 303 are both provided with edge connectors 19, and a bottom plate 20 is installed in the edge connector 19, and the upper end of the bottom plate 20 is connected to multiple groups of molding cavity lower end parts 15, and the top of the molding cavity lower end part 15 is provided with a molding cavity, and two groups of mold auxiliary blocks 7 are provided at the bottom of the mounting frame 1.

[0037] The mold-taking auxiliary block 7 is fixed at the bottom of the mounting frame 1, and the mold-taking auxiliary block 7 is set close to the rotating chassis 8. During the mutual transportation of the first bottom mold layer 203 and the second bottom mold layer 303, during the transportation of the first bottom mold layer 203 to the second bottom mold layer 303 station, under the action of the mold-taking auxiliary block 7 at the front and rear ends of the rotating chassis 8, the mold-taking auxiliary block 7 can pass through the bottom grooves of the first bottom mold layer 203 and the second bottom mold layer 303, and enter the middle of the first bottom mold layer 203 and the second bottom mold layer 303. A bottom plate 20 is provided at the bottom of the first bottom mold layer 203 and the second bottom mold layer 303, and a plurality of molding cavity lower end pieces 15 are provided on the bottom plate 20. When the first bottom mold layer 203 and the second bottom mold layer 303 change stations, the mold-taking auxiliary block 7 will slowly raise the height of the bottom plate 20, and further raise the height of the molding cavity lower end piece 15, so that during the transportation process, the molding cavity lower end piece 15 can be lifted. Part 15 will move upward compared to the auxiliary bottom cavity part 13. Because the injection molded product is set just above the lower end part 15 of the molding cavity, the product of the first injection and the product of the second injection will be ejected along with the lower end part 15 of the molding cavity. By ejecting the product of the first injection, it is possible to detect whether there are any defects in the product of the first injection, because the whole needs internal and external secondary injection. If there are defects in the product of the first injection, there is no need for secondary injection. It can be taken out directly and replaced with the advance sample of the product of the first injection prepared in advance. Because the possibility of defects in the whole first injection is not high, only a small amount of samples need to be prepared for replacement when damage occurs, which can save the cost of the second injection material to a certain extent. The purpose of ejecting the product of the second injection is to separate the completed injection product from the entire lower mold cavity, which is convenient for subsequent material removal, and can make the overall unloading more convenient and the overall equipment work in a cycle.

[0038] In the outer mold injection layer 301 and the outer mold forming layer 302, there will be inner grooves that limit the movable rod 1105 and the active rod 1101 to a certain extent, and the injection molding mechanisms set in the outer mold injection layer 301 and the outer mold forming layer 302 will abut against the molding cavity, and the actual weight of the base plate 20 will not be too low, so after ejecting the injection molded product, in addition to the automatic reset at the descending end of the mold auxiliary block 7, it will also be reset by the downward pressure of the outer mold injection layer 301 and the outer mold forming layer 302, so the overall situation will not affect the subsequent injection molding.

[0039] Furthermore, the die lifting control mechanism 6 includes a die lifting control member 601 , a die lifting moving member 602 and a die lifting actuating member 603 . The die lifting control member 601 is downwardly connected to the die lifting moving member 602 , and the die lifting moving member 602 is downwardly connected to the die lifting actuating member 603 .

[0040] The mold lifting control part 601 controls the mold lifting moving part 602 to move up, down, left and right to a certain extent. When the inner mold forming layer 202, the first bottom mold layer 203 and the outer mold forming layer 302, the second bottom mold layer 303 need to be switched to the working position, the mold lifting control part 601 controls the mold lifting moving part 602 downward, and through the mold lifting moving part 603 inward, it is inserted into the inner mold injection layer 201 and the outer mold injection layer 301, thereby realizing the upward lifting of the mold, so that there is space for the conversion of the module below.

[0041] Furthermore, the lower end piece 15 of the molding cavity is provided with multiple groups of molding cavities upward, and the interior of the injection molding lower mold 12 is connected to multiple groups of auxiliary bottom cavity pieces 13. The lower end piece 15 of the molding cavity is provided in the auxiliary bottom cavity piece 13, and the upper end of the auxiliary bottom cavity piece 13 is provided with a bottom cavity 16.

[0042] Above the lower end piece 15 of the molding cavity is the main molding cavity. The injection molding lower mold 12 is fixedly connected to the auxiliary bottom cavity piece 13, which will drive the auxiliary bottom cavity piece 13 to move when it moves. Therefore, the movement of the injection molding lower mold 12 will further control the height of the bottom cavity 16, and the height of the bottom cavity 16 will determine the bottom shape of the injection molded product.

[0043] Furthermore, an inner mold molding cavity is provided at the lower end of the inner mold injection molding upper mold 205, and the molding cavity, the bottom cavity 16 in the inner module injection molding mechanism 2 and the inner mold molding cavity are combined to form an inner mold product molding cavity.

[0044] Furthermore, an outer mold molding cavity is provided at the lower end of the outer mold injection molding upper mold 305, and the molding cavity, the bottom cavity 16 in the outer module injection molding mechanism 3 and the outer mold molding cavity are combined to form an outer mold product molding cavity for injection molding outside the product.

[0045] Furthermore, the seesaw mechanism 11 includes a seesaw mounting seat 1106 and a seesaw member 1103, the seesaw mounting seat 1106 is provided with a mounting shaft 1107, the seesaw member 1103 is connected to the seesaw mounting seat 1106 through the mounting shaft 1107, the outer end of the seesaw member 1103 is connected to a movable rod connecting block 1102, the movable rod 1101 is connected to the seesaw member 1103 through the movable rod connecting block 1102, the inner end of the seesaw member 1103 is connected to a movable rod connecting block 1104, and the movable rod 1105 is connected to the seesaw member 1103 through the movable rod connecting block 1104.

[0046] The movable rod 1101 will press the outer end of the seesaw piece 1103 downward, thereby lifting the inner end of the seesaw piece 1103, that is, lifting the movable rod 1105. The movable rod 1105 drives the injection molding lower mold 12 upward. The movable rod 1105 will press the inner end of the seesaw piece 1103 downward. At the same time, the movable rod 1105 drives the injection molding lower mold 12 downward, thereby lifting the outer end of the seesaw piece 1103, that is, lifting the movable rod 1101.

[0047] Furthermore, the upper end of the outer module injection molding mechanism 3 is upwardly connected to a second color injection molding port 4 , and the upper end of the inner module injection molding mechanism 2 is upwardly connected to a first color injection molding port 5 .

[0048] The first color injection port 5 is used to inject the inner mold of this color and perform molding, and the second color injection port 4 is used to inject the outer mold of the second color, which is wrapped around the outside of the inner mold and performed molding.

[0049] Furthermore, multiple sets of mold lifting holes are provided on the side surfaces of the outer mold injection layer 301 and the inner mold injection layer 201 , and multiple sets of fixing mechanisms 10 are provided on the outer sides of the inner module injection mechanism 2 and the outer module injection mechanism 3 .

[0050] The mold lifting hole is used to assist the mold lifting control component 601, so that the mold lifting control component 601 can control the inner mold injection layer 201 or the outer mold injection layer 301 and its upper end mechanism to separate, and the fixing mechanism 10 can be removed when the upper and lower molds need to be separated. When the upper and lower molds are closed, the fixing mechanism 10 can stabilize the closing mechanism.

[0051] Furthermore, an annular groove 17 is provided between the rotating chassis 8 and the bottom of the mounting frame 1, and the mounting frame 1 is provided with a sliding groove 18 around the annular groove 17. The mold-taking auxiliary block 7 is provided in the annular groove 17. The inner side of the inner module injection molding mechanism 2 and the outer module injection molding mechanism 3 are both provided on the rotating chassis 8, and the outer side of the inner module injection molding mechanism 2 and the outer module injection molding mechanism 3 are downwardly connected with a connecting piece, and the inner module injection molding mechanism 2 and the outer module injection molding mechanism 3 are both slidably installed in the sliding groove 18 through the connecting piece.

[0052] After demolding, the lower end portion of the inner module injection molding mechanism 2 and the lower end portion of the outer module injection molding mechanism 3 are exchanged with each other. During the movement, the inner side is installed on the rotating chassis 8, so it moves with the middle rotating chassis 8, and the outer side is slidably installed in the sliding groove 18 through the connecting piece. Therefore, even if the outer part does not move, it can also be moved in the outer sliding groove 18 through the connecting piece, and in the process of movement, it can smoothly contact the mold auxiliary block 7.

[0053] Working principle: Start to perform injection molding on the inner module injection molding mechanism 2, and then after the injection molding is completed, the mold lifting control mechanism 6 controls the upper half of the inner module injection molding mechanism 2 and the upper half of the outer module injection molding mechanism 3 to separate from the lower half, and the inner mold molding layer 202 with the completed inner mold is transferred to the position of the outer mold molding layer 302, and then merged with the outer mold injection molding layer 301 to form a new outer mold molding layer 302, and then the workpiece that has been completed by the first injection molding is subjected to secondary injection molding, and in order to achieve the wrapping of the first injection molding by the secondary injection molding, mainly for the injection molding of the bottom surface, first, when the inner module is injected, the active rod pressing piece 204 provided in the inner mold injection molding layer 201 presses down the active rod 1101, as shown Figure 7 As shown, the movable rod 1105 is then lifted upward by the seesaw mechanism 11, further driving the lifting of the injection molding lower mold 12 and the auxiliary bottom cavity member 13. The lower end member 15 of the molding cavity does not change during this process, and forms a one-time injection molding product cavity with the cavity in the upper inner mold injection layer 201. When the outer module is injected after the transfer, the movable rod pressing member 304 provided in the outer mold injection layer 301 presses the movable rod 1105 downward, and then the movable rod 1101 is lifted upward by the seesaw mechanism 11, as shown. Figure 8 As shown, when the movable rod 1105 moves downward, it can drive the injection molding lower mold 12 and the auxiliary bottom cavity part 13 to shift relative to the lower end part 15 of the molding cavity that does not move, leaving space for the lower end of the primary product, and then cooperate with the cavity in the upper end of the outer mold injection layer 301 to form a secondary injection molding product cavity, thereby realizing secondary wrapping injection molding of the product. After the overall one-time inner mold injection is completed and transferred to the injection outer mold, the new inner module injection molding mechanism can simultaneously perform inner mold injection, and the outer mold injection and inner mold injection of the entire mechanism can be carried out simultaneously afterwards.

[0054] The above specific embodiments are only several preferred embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A high-efficiency two-color injection mold, comprising a mounting frame (1), characterized in that: The bottom of the mounting frame (1) is provided with a rotating chassis (8), the upper end of the mounting frame (1) is provided with multiple sets of mold lifting control mechanisms (6), the lower end of the rotating chassis (8) is connected to a rotating motor (9), and the two sides of the upper end of the rotating chassis (8) are respectively provided with an inner module injection molding mechanism (2) and an outer module injection molding mechanism (3), the inner module injection molding mechanism (2) includes an inner mold injection layer (201), an inner mold forming layer (202) and a first bottom mold layer (203), the outer module injection molding mechanism (3) includes an outer mold injection layer (301), an outer mold forming layer (302) and a second bottom mold layer (303), and the inner mold forming layer (202) and the outer mold forming layer (302) are both provided with an injection molding bottom mold. The mold (12) comprises an inner mold injection molding upper mold (205) provided in the inner mold injection molding layer (201), an outer mold injection molding upper mold (305) provided in the outer mold injection molding layer (301), a movable rod pressure piece (204) provided downwardly of the inner mold injection molding layer (201), and a movable rod pressure piece (304) provided downwardly of the outer mold injection molding layer (301), and a plurality of sets of seesaw mechanisms (11) are provided inside the first bottom mold layer (203) and the second bottom mold layer (303), and the seesaw mechanism (11) is provided with a movable rod (1101) facing upwardly at one end near the outer side, and a movable rod (1105) facing upwardly at one end near the inner side, and the movable rod (1105) is connected to the injection molding lower mold (12); The sides of the first bottom mold layer (203) and the second bottom mold layer (303) are both provided with bottom opening grooves (14), the insides of the first bottom mold layer (203) and the second bottom mold layer (303) are both provided with edge connectors (19), a bottom plate (20) is installed in the edge connector (19), the upper end of the bottom plate (20) is connected to a plurality of groups of molding cavity lower end pieces (15), the top of the molding cavity lower end pieces (15) is provided with a molded product, and the bottom of the mounting frame (1) is provided with two groups of mold-taking auxiliary blocks (7); The molding cavity lower end piece (15) is provided with a plurality of molding cavities upward, the interior of the injection molding lower mold (12) is connected to a plurality of auxiliary bottom cavity pieces (13), the molding cavity lower end piece (15) is provided in the auxiliary bottom cavity piece (13), and the upper end of each of the auxiliary bottom cavity pieces (13) is provided with a bottom cavity (16).

2. The high-efficiency two-color injection mold according to claim 1, characterized in that: The die lifting control mechanism (6) comprises a die lifting control member (601), a die lifting moving member (602) and a die lifting action member (603), wherein the die lifting control member (601) is downwardly connected to the die lifting moving member (602), and the die lifting moving member (602) is downwardly connected to the die lifting action member (603).

3. The high-efficiency two-color injection mold according to claim 1, characterized in that: The lower end of the inner mold injection molding upper mold (205) is provided with an inner mold molding cavity.

4. The high-efficiency two-color injection mold according to claim 1, characterized in that: The lower end of the outer mold injection molding upper mold (305) is provided with an outer mold molding cavity.

5. The high-efficiency two-color injection mold according to claim 1, characterized in that: The seesaw mechanism (11) comprises a seesaw mounting seat (1106) and a seesaw member (1103); a mounting shaft (1107) is provided on the seesaw mounting seat (1106); the seesaw member (1103) is connected to the seesaw mounting seat (1106) via the mounting shaft (1107); an outer end of the seesaw member (1103) is connected to a movable rod connecting block (1102); the movable rod (1101) is connected to the seesaw member (1103) via the movable rod connecting block (1102); an inner end of the seesaw member (1103) is connected to a movable rod connecting block (1104); and the movable rod (1105) is connected to the seesaw member (1103) via the movable rod connecting block (1104).

6. The high-efficiency two-color injection mold according to claim 1, characterized in that: The upper end of the outer module injection molding mechanism (3) is upwardly connected to a second color injection molding port (4), and the upper end of the inner module injection molding mechanism (2) is upwardly connected to a first color injection molding port (5).

7. The high-efficiency two-color injection mold according to claim 1, characterized in that: The side surfaces of the outer mold injection layer (301) and the inner mold injection layer (201) are both provided with multiple sets of mold lifting holes, and the outer sides of the inner module injection mechanism (2) and the outer module injection mechanism (3) are both provided with multiple sets of fixing mechanisms (10).

8. The high-efficiency two-color injection mold according to claim 1, characterized in that: An annular groove (17) is provided between the rotating chassis (8) and the bottom of the mounting frame (1); a sliding groove (18) is provided on the mounting frame (1) in a circle outward of the annular groove (17); the mold-taking auxiliary block (7) is provided in the annular groove (17); the inner side of the inner module injection molding mechanism (2) and the outer module injection molding mechanism (3) are both provided on the rotating chassis (8); the outer side of the inner module injection molding mechanism (2) and the outer module injection molding mechanism (3) are connected downwardly with a connecting piece; the inner module injection molding mechanism (2) and the outer module injection molding mechanism (3) are both slidably installed in the sliding groove (18) through the connecting piece.

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