A barrel and handle two-color injection mold with in-mold mounting function

Abstract

The present application relates to a kind of barrel and handle double-color injection mold with in-mold installation function, belong to injection mold technical field.It includes top plate, upper mold plate, lower mold plate and foot plate arranged in sequence, the connecting place of upper mold plate and lower mold plate is equipped with barrel forming cavity and handle forming cavity, handle forming cavity is perimetrically arranged in the lateral side of barrel forming cavity, lower mold plate top is equipped with mounting seat, mounting seat is equipped with horizontally slidingly connected forming block and sliding block, one end of forming block extends and inserts into handle forming cavity, and the end portion is equipped with forming groove connected with handle forming cavity, forming block is equipped with slidingly connected forming rod inside, one end of forming rod passes out from the bottom of forming groove and extends to the inside of barrel forming cavity;In the present application, in the demolding process, first cylinder can push forming block to move, forming block can press annular handle into the connecting structure arranged on barrel body lateral wall, so that annular handle and barrel body complete automatic assembly, improve the efficiency of production.

Description

Technical Field

[0001] This invention belongs to the field of injection mold technology and relates to a two-color injection mold for a bucket and a handle with in-mold mounting function. Background Technology

[0002] Injection molds are devices used to produce plastic products, such as plastic buckets and their handles. The working principle of an injection mold is as follows: the plastic raw material is first heated to a molten state, then injected into the pre-set molding cavity inside the mold. After the cavity is filled, the mold is rapidly cooled, and the molten plastic raw material cools and solidifies, forming the desired plastic part. Using injection molds to produce plastic products offers advantages such as high precision and high efficiency.

[0003] However, existing injection molds used for producing buckets and handles still have some shortcomings. After the bucket and handle cool and solidify inside the injection mold, they need to be demolded separately from the molding cavity. Then, workers need to attach both ends of the handle to the outer wall of the bucket body, making the handle rotatably connected to the bucket body for easy lifting during use. However, manually installing the handle reduces production efficiency and increases production costs. Summary of the Invention

[0004] The purpose of this invention is to address the problems existing in the prior art by proposing a two-color injection mold for a bucket and a handle with in-mold installation function. The technical problem to be solved by this invention is: how to automatically assemble the handle and the bucket directly inside the mold.

[0005] The objective of this invention can be achieved through the following technical solution: A two-color injection mold for a bucket and a handle with in-mold mounting function, comprising a top plate, an upper template, a lower template, and a foot plate arranged sequentially. The connection between the upper and lower templates is provided with a bucket forming cavity and a handle forming cavity that are not interconnected. The handle forming cavity is arranged around the periphery of the bucket forming cavity. The top of the lower template is provided with a longitudinally slidably connected mounting seat. The top of the mounting seat is provided with a first cylinder fixedly connected, and the bottom is provided with a second cylinder fixedly connected. The end of the first cylinder is provided with a retractable first piston rod, and the end of the second cylinder is provided with a retractable second piston rod. The mounting seat is provided with a horizontally slidably connected molding block and a slider. The first piston rod is fixedly connected to the molding block, and the second piston rod is fixedly connected to the slider. One end of the molding block extends into the handle forming cavity, and this end is provided with a molding groove connected to the handle forming cavity. The inside of the molding block is provided with a slidably connected molding rod. One end of the molding rod passes through the bottom of the molding groove and extends into the inside of the bucket forming cavity, and the other end of the molding rod is fixedly connected to the slider.

[0006] In this solution, molten plastic heated to a molten state is injected into the barrel forming cavity and the handle forming cavity respectively. Since the barrel forming cavity and the handle forming cavity are set separately and are not connected to each other, molten plastic of different colors or materials can be injected into the barrel forming cavity and the handle forming cavity respectively, so that the barrel and the handle have different colors to meet the different production needs of customers. After the molten plastic cools and solidifies inside the barrel forming cavity and the handle forming cavity, the lower mold plate is moved to separate it from the upper mold plate. The formed barrel body and the ring handle are adhered to the top surface of the lower mold plate. At this time, the mounting base moves upward first, causing the bottom of the barrel body and the ring handle to separate from the lower mold plate. Then, the first cylinder is controlled to drive the first piston rod to push out. The first piston rod pushes the fixed molding block to one side of the barrel forming cavity. The molding block pushes the ring handle closer to the barrel body and installs the ring handle onto the barrel body. The first cylinder and the second cylinder then simultaneously control the first piston rod and the second piston rod to retract. The first piston rod and the second piston rod pull the molding block and the slider to the side away from the barrel forming cavity. The slider can drive the molding rod to slide inside the molding block, so that the molding rod slides horizontally and retracts into the molding groove, avoiding interference when the barrel body and the ring handle are removed. By setting the handle forming cavity on the outside of the barrel forming cavity in the above manner, during the product demolding process, the first cylinder can push the forming block to move, and the forming block can press the ring handle into the connecting structure set on the side wall of the barrel, so that the ring handle and the barrel are assembled without secondary installation, which improves production efficiency. In addition, the structure of the installation mechanism is simple, occupies less space inside the mold, improves the utilization rate of the internal space of the mold, and can also reduce the manufacturing cost of the mold itself.

[0007] In the aforementioned two-color injection mold for buckets and handles with in-mold mounting function, the top two sides of the lower mold plate are provided with identical mounting seats. These mounting seats are symmetrically arranged on the outside of the handle molding cavity. Each mounting seat on both sides is equipped with a first cylinder, a second cylinder, a molding block, and a slider. The identical mounting mechanisms on both sides of the lower mold plate allow for the simultaneous mounting of both ends of the annular handle to the bucket body.

[0008] In the aforementioned two-color injection mold for a bucket and handle with in-mold mounting function, the bucket molding cavity contains a cooled and formed bucket body, and the handle molding cavity contains a cooled and formed annular handle. The molding groove contains an integrally connected mounting portion for the annular handle, located at both ends of the annular handle. The mounting portion has a central mounting hole, and the bucket body has integrally connected buckles on both sides, which wrap around the outer wall of the molding rod end. The buckles on the outer wall of the bucket body are used to install the annular handle. Because the molding rod end is inserted into the bucket molding cavity, the molded handle wraps around the outer wall of the molding rod. Since the molding rod extends from inside the molding groove, the buckles and the mounting portion inside the molding groove remain horizontal. Under the push of the molding block, the mounting portion inside the molding groove moves towards the buckle, causing the buckle to insert into the central mounting hole of the mounting portion, completing the assembly of the annular handle and the bucket body.

[0009] In the aforementioned two-color injection mold for a bucket and handle with in-mold mounting function, a limiting part is provided on the outer wall of the buckle. The radius of the limiting part near the mounting part is smaller than the radius of the mounting hole, and the radius of the other end of the limiting part is larger than the radius of the mounting hole. Because the radius of the limiting part near the mounting part is smaller than the radius of the mounting hole, the end of the buckle can be inserted into the mounting hole. When the buckle is fully inserted into the mounting hole, the radius of the other end of the limiting part is larger than the radius of the mounting hole, preventing the ring handle from falling off the buckle.

[0010] In the aforementioned two-color injection mold for barrels and handles with in-mold mounting function, the top of the mounting base is provided with an upwardly protruding limiting block, and the bottom of the molding block is provided with an inwardly recessed limiting groove. The limiting block is slidably inserted into the limiting groove, and the limiting block can abut against the inner walls of both ends of the limiting groove. The cooperation between the limiting block and the limiting groove can limit the sliding range of the molding block on the top of the mounting base. When installing the ring handle, it can prevent the molding block from excessively squeezing the ring handle. After installation, it can ensure that the molding block slides to a fixed position, improving the accuracy and yield of the injection molded product.

[0011] In the aforementioned two-color injection mold for a bucket and handle with in-mold mounting function, the inner side of the foot plate is provided with a slidingly connected first push plate and second push plate. The first push plate is located on top of the second push plate. The first push plate is provided with several fixed first ejector rods. The top of the first ejector rods slides through the lower mold plate and is fixedly connected to the mounting seat. The top of the lower mold plate is provided with an upper ejector block, which is located directly below the bucket forming cavity. The first push plate is provided with a fixed ejector post, which slides through the lower mold plate and is fixedly connected to the upper ejector block. After the upper mold plate separates from the lower mold plate, the first push plate moves towards the side closer to the lower mold plate, causing the first ejector rods and ejector posts to be ejected longitudinally. The first ejector rods cause the fixed mounting seat to move upward, the mounting seat pushes the annular handle to separate from the lower mold plate, the ejector post causes the fixed upper ejector block to move upward, and the upper ejector block pushes the bucket body to separate from the lower mold plate. This allows the bucket body and the annular handle to move upward by the same distance, keeping the buckle and the mounting part in a horizontal state, facilitating subsequent assembly.

[0012] In the aforementioned two-color injection mold for a bucket and handle with in-mold installation function, a demolding cylinder is fixedly connected inside the foot plate. A demolding piston rod is located at the top of the demolding cylinder and is fixedly connected to the first push plate. A push rod is fixedly connected to the bottom of the second push plate, which also has several fixedly connected second push rods. A lower push block is located at the top of the lower mold plate and at the bottom of the bucket forming cavity and the handle forming cavity. The second push rods slide through the lower mold plate and are fixedly connected to the lower push block. The demolding cylinder independently controls the movement of the first push plate, causing it to push the first push rod and push post upwards. After the ring handle is installed on the molded block, the push rod pushes the second push plate, causing the second push plate to move upwards, thus completely separating the bucket body and ring handle from the lower mold plate for demolding.

[0013] In the aforementioned two-color injection mold for a bucket and handle with in-mold mounting function, a first inlet is provided at the center of the top plate, and a second inlet is provided at the top of the top plate. A first runner plate connected to the first inlet is provided inside the top plate, and a first nozzle is provided at the bottom of the first runner plate. The bottom of the first nozzle passes through the upper mold plate and connects to the bucket forming cavity. A second runner plate connected to the second inlet is provided inside the top plate, and a second nozzle is provided at the bottom of the second runner plate. The bottom of the second nozzle passes through the upper mold plate and connects to the handle forming cavity. Since the bucket forming cavity and the handle forming cavity are separately configured and not interconnected, different colored plastic raw materials can be injected into the first and second inlets. After the flow is diverted by the runner plate, the two colored melts are injected into the bucket forming cavity and the handle forming cavity respectively from the first and second nozzles.

[0014] In the aforementioned two-color injection mold for buckets and handles with in-mold mounting function, several solenoid valves are fixedly connected to the outer wall of the foot plate. Each solenoid valve has several flexible hoses attached to it, and each hose on a single solenoid valve is connected to either a first or second cylinder. The solenoid valves can control the intake or exhaust of air into the hoses, thereby controlling the ejection or retraction of the first and second cylinders, achieving automated production.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] In this solution, since the barrel forming cavity and the handle forming cavity are set up separately and are not connected to each other, different colored or different material plastic melts can be injected into the barrel forming cavity and the handle forming cavity respectively, so that the barrel and the handle have different colors to meet the different production needs of customers.

[0017] In this solution, the handle forming cavity is located on the outside of the barrel forming cavity. During the product demolding process, the first cylinder can push the forming block to move, and the forming block can press the ring handle into the connecting structure set on the side wall of the barrel, so that the ring handle and the barrel are assembled without secondary installation, which improves production efficiency. In addition, the structure of the installation mechanism is simple, occupies less space inside the mold, improves the utilization rate of the internal space of the mold, and can also reduce the manufacturing cost of the mold itself. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0019] Figure 2 This is a frontal half-section structural diagram of the present invention;

[0020] Figure 3 This is a schematic diagram of the left-side cross-sectional structure of the mounting base of the present invention;

[0021] Figure 4 yes Figure 3 A magnified schematic diagram of the local structure;

[0022] Figure 5 This is a schematic diagram of the connection structure between the bucket and the handle of the present invention.

[0023] In the diagram, 1. Top plate; 1a. First glue inlet; 1a1. First flow channel plate; 1a2. First nozzle; 1b. Second glue inlet; 1b1. Second flow channel plate; 1b2. Second nozzle; 2. Upper template; 3. Lower template; 3a. Upper top block; 3b. Lower top block; 4. Foot plate; 4a. Solenoid valve; 4a1. Hose; 4b. First push plate; 4b1. Top column; 4b2. First push rod; 4b3. Second push rod; 4c. Second push plate; 4c1. Push rod; 4d. Demolding cylinder; 4d1, Demolding piston rod; 5, Mounting base; 5a, First cylinder; 5a1, First piston rod; 5b, Second cylinder; 5b1, Second piston rod; 5c, Forming block; 5c1, Forming rod; 5c2, Limiting groove; 5c3, Forming groove; 5d, Slider; 5e, Limiting block; 6, Barrel forming cavity; 6a, Barrel body; 6a1, Bucket; 6a2, Limiting part; 7, Handle forming cavity; 7a, Ring handle; 7a1, Mounting part; 7a2, Mounting hole. Detailed Implementation

[0024] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings to further illustrate the technical solutions of the present invention. However, the present invention is not limited to these embodiments. Example

[0025] like Figure 1 As shown, a two-color injection mold for a bucket and handle with in-mold mounting function includes a top plate 1, an upper template 2, a lower template 3, and a foot plate 4 arranged in sequence. The lower template 3 has a longitudinally sliding mounting seat 5 at its top. The mounting seat 5 has a first cylinder 5a fixedly connected at its top and a second cylinder 5b fixedly connected at its bottom. The foot plate 4 has several fixedly connected solenoid valves 4a on its outer wall. The solenoid valves 4a have several hoses 4a1. The hoses 4a1 on a single solenoid valve 4a are connected to the first cylinder 5a or the second cylinder 5b. The top plate 1 has a first inlet 1a at its center and a second inlet 1b at its top.

[0026] like Figure 2As shown, the connection between the upper template 2 and the lower template 3 is provided with a non-communicating barrel forming cavity 6 and a handle forming cavity 7. The handle forming cavity 7 is arranged around the periphery of the barrel forming cavity 6. The top plate 1 is provided with a first flow channel plate 1a1 connected to the first glue inlet 1a. The bottom of the first flow channel plate 1a1 is provided with a first nozzle 1a2. The bottom of the first nozzle 1a2 passes through the upper template 2 and connects to the barrel forming cavity 6. The top plate 1 is provided with a second flow channel plate 1b1 connected to the second glue inlet 1b. The bottom of the second flow channel plate 1b1 is provided with a second nozzle 1b2. The bottom of the second nozzle 1b2 passes through the upper template 2 and connects to the handle forming cavity 6. The handle forming cavity 7 is connected to the lower template 3. The upper template 3 is provided with an upper top block 3a, which is located directly below the barrel forming cavity 6. The lower template 3 is provided with a lower top block 3b, which is located at the bottom of the barrel forming cavity 6 and the handle forming cavity 7. The foot plate 4 is provided with a slidingly connected first push plate 4b and second push plate 4c. The first push plate 4b is located on top of the second push plate 4c. The foot plate 4 is provided with a demolding cylinder 4d fixedly connected inside. The top of the demolding cylinder 4d is provided with a demolding piston rod 4d1, which is fixedly connected to the first push plate 4b. The bottom of the second push plate 4c is provided with a fixed push rod 4c1.

[0027] like Figure 3 As shown, the lower template 3 has mounting seats 5 with the same structure on both sides of its top. The mounting seats 5 are symmetrically arranged on the outside of the handle forming cavity 7. The first push plate 4b has several first push rods 4b2 fixedly connected. The top of the first push rods 4b2 slides through the lower template 3 and is fixedly connected to the mounting seats 5. The second push plate 4c has several second push rods 4b3 fixedly connected. The second push rods 4b3 slide through the lower template 3 and are fixedly connected to the lower top block 3b. The first push plate 4b has a fixed top column 4b1 fixedly connected. The top column 4b1 slides through the lower template 3 and is fixedly connected to the upper top block 3a.

[0028] like Figure 3 Combination Figure 4As shown, the first cylinder 5a has a retractable first piston rod 5a1 at its end, and the second cylinder 5b has a retractable second piston rod 5b1 at its end. The mounting base 5 has a horizontally slidably connected molding block 5c and slider 5d. The first piston rod 5a1 is fixedly connected to the molding block 5c, and the second piston rod 5b1 is fixedly connected to the slider 5d. One end of the molding block 5c extends into the handle molding cavity 7, and this end has a molding groove 5c3 connected to the handle molding cavity 7. The molding block 5c has a slidably connected molding rod 5c1 inside. One end of the molding rod 5c1 passes through the bottom of the molding groove 5c3 and extends into the barrel molding cavity 6. The other end of the molding rod 5c1 is fixedly connected to the slider 5d. The top of the mounting base 5 has an upwardly protruding limiting block 5e, and the bottom of the molding block 5c has an inwardly recessed limiting groove 5c2. The limiting block 5e is slidably inserted into the limiting groove 5c2, and the limiting block 5e can abut against the inner walls of both ends of the limiting groove 5c2.

[0029] like Figure 5 As shown, the barrel forming cavity 6 has a cooled and formed barrel body 6a inside, the handle forming cavity 7 has a cooled and formed annular handle 7a inside, the forming groove 5c3 has a mounting part 7a1 integrally connected to the annular handle 7a inside, the mounting part 7a1 is located at both ends of the annular handle 7a, the mounting part 7a1 has a mounting hole 7a2 at its center, the barrel body 6a has buckles 6a1 integrally connected on both sides, the outer wall of the buckle 6a1 has a limiting part 6a2, the radius of the limiting part 6a2 near the mounting part 7a1 is smaller than the radius of the mounting hole 7a2, and the radius of the other end of the limiting part 6a2 is larger than the radius of the mounting hole 7a2.

[0030] The working principle of this solution is as follows: Figure 1-5As shown, different colored plastic raw materials can be injected into the first inlet 1a and the second inlet 1b. After being diverted by the first flow channel plate 1a1 and the second flow channel plate 1b1, the two colored melts are injected into the barrel forming cavity 6 and the handle forming cavity 7 from the first nozzle 1a2 and the second nozzle 1b2, respectively. After the molten plastic cools and solidifies inside the barrel forming cavity 6 and the handle forming cavity 7, the lower mold plate 3 is moved to separate it from the upper mold plate 2. The formed barrel body and the ring handle 7a adhere to the top surface of the lower mold plate 3. At this time, the demolding cylinder 4d pushes the first push plate 4b upward, and the first push plate 4b pushes the first push rod 4b2 and the push column 4b1 upward. The first push rod 4b2 and the push column 4b1 drive the fixed mounting base 5 and the upper push block 3a upward, pushing the bottom of the barrel body and the ring handle 7a to separate from the lower mold plate 3. Then, the first cylinder 5a is controlled to drive the first piston rod 5a1 to push out. The first piston rod 5a1 pushes the fixed molding block 5c to move towards one side of the barrel forming cavity 6. Under the guidance of the molding rod 5c1, the molding block 5c pushes the ring handle 7a to move towards the top surface of the barrel forming cavity 6. The handle 7a is brought closer to the barrel body, so that the buckle 6a1 is horizontally inserted into the mounting hole 7a2 in the center of the mounting part 7a1, thus assembling the ring handle 7a with the barrel body. The first cylinder 5a and the second cylinder 5b then control the first piston rod 5a1 and the second piston rod 5b1 to retract. The first piston rod 5a1 and the second piston rod 5b1 pull the forming block 5c and the slider 5d to move away from the barrel forming cavity 6. The slider 5d can drive the forming rod 5c1 to slide inside the forming block 5c, so that the forming rod 5c1 slides horizontally and retracts into the forming groove 5c3. Finally, the push rod 4c1 pushes the second push plate 4c to move. The second push plate 4c drives the lower top block 3b to move upward, so that the barrel body and the ring handle 7a are completely separated from the lower template 3 and demolded.

[0031] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

[0032] Although this article frequently uses the following terms: 1. Top plate; 1a. First sprue; 1a1. First runner plate; 1a2. First nozzle; 1b. Second sprue; 1b1. Second runner plate; 1b2. Second nozzle; 2. Upper mold plate; 3. Lower mold plate; 3a. Upper ejector block; 3b. Lower ejector block; 4. Foot plate; 4a. Solenoid valve; 4a1. Hose; 4b. First push plate; 4b1. Ejector column; 4b2. First ejector rod; 4b3. Second ejector rod; 4c. Second push plate; 4c1. Ejector rod; 4d. Demolding cylinder; 4 d1, demolding piston rod; 5, mounting base; 5a, first cylinder; 5a1, first piston rod; 5b, second cylinder; 5b1, second piston rod; 5c, forming block; 5c1, forming rod; 5c2, limiting groove; 5c3, forming groove; 5d, slider; 5e, limiting block; 6, barrel forming cavity; 6a, barrel body; 6a1, buckle; 6a2, limiting part; 7, handle forming cavity; 7a, annular handle; 7a1, mounting part; 7a2, mounting hole, etc., but the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of the invention; interpreting them as any additional limitation would contradict the spirit of the invention.

Claims

1. A two-color injection mold for a bucket and a handle with in-mold mounting function, comprising a top plate (1), an upper mold plate (2), a lower mold plate (3), and a foot plate (4) arranged sequentially, wherein the connection between the upper mold plate (2) and the lower mold plate (3) is provided with a bucket forming cavity (6) and a handle forming cavity (7) that are not interconnected, and the handle forming cavity (7) is arranged around the periphery of the bucket forming cavity (6), characterized in that, The lower template (3) is provided with a longitudinally sliding mounting seat (5) at the top. The mounting seat (5) is provided with a first cylinder (5a) fixed at the top and a second cylinder (5b) fixed at the bottom. The end of the first cylinder (5a) is provided with a retractable first piston rod (5a1), and the end of the second cylinder (5b) is provided with a retractable second piston rod (5b1). The mounting seat (5) is provided with a horizontally sliding forming block (5c) and a slider (5d). The first piston rod (5a1) and the forming block (5d) are connected in a horizontally sliding manner. The block (5c) is fixedly connected, the second piston rod (5b1) is fixedly connected to the slider (5d), one end of the molding block (5c) extends into the handle molding cavity (7), and the end is provided with a molding groove (5c3) connected to the handle molding cavity (7). The molding block (5c) is provided with a slidably connected molding rod (5c1) inside, one end of the molding rod (5c1) passes through the bottom of the molding groove (5c3) and extends into the barrel molding cavity (6), and the other end of the molding rod (5c1) is fixedly connected to the slider (5d).

2. The two-color injection mold for a bucket and handle with in-mold mounting function according to claim 1, characterized in that, The lower template (3) has mounting seats (5) with the same structure on both sides of the top. The mounting seats (5) are symmetrically arranged on the outside of the handle forming cavity (7). The mounting seats (5) on both sides are equipped with a first cylinder (5a), a second cylinder (5b), a forming block (5c) and a slider (5d).

3. A two-color injection mold for a bucket and handle with in-mold mounting function according to claim 2, characterized in that, The barrel forming cavity (6) is provided with a cooled and formed barrel body (6a), the handle forming cavity (7) is provided with a cooled and formed annular handle (7a), the forming groove (5c3) is provided with an installation part (7a1) integrally connected to the annular handle (7a), the installation part (7a1) is located at both ends of the annular handle (7a), the installation part (7a1) is provided with an installation hole (7a2) in the center, and the barrel body (6a) is provided with buckles (6a1) integrally connected on both sides, the buckles (6a1) are wrapped around the outer side wall of the end of the forming rod (5c1).

4. A two-color injection mold for a bucket and handle with in-mold mounting function according to claim 3, characterized in that, The buckle (6a1) has a limiting part (6a2) on its outer side wall. The radius of the limiting part (6a2) near the mounting part (7a1) is smaller than the radius of the mounting hole (7a2), and the radius of the other end of the limiting part (6a2) is larger than the radius of the mounting hole (7a2).

5. A two-color injection mold for a bucket and handle with in-mold mounting function according to claim 1, characterized in that, The mounting base (5) has an upwardly protruding limiting block (5e) at the top and an inwardly recessed limiting groove (5c2) at the bottom of the molding block (5c). The limiting block (5e) is slidably inserted into the limiting groove (5c2) and the limiting block (5e) can abut against the inner walls of both ends of the limiting groove (5c2).

6. A two-color injection mold for a bucket and handle with in-mold mounting function according to claim 1, characterized in that, The foot plate (4) is provided with a slidingly connected first push plate (4b) and second push plate (4c) on the inner side. The first push plate (4b) is located on the top of the second push plate (4c). The first push plate (4b) is provided with a plurality of fixed first top rods (4b2). The top of the first top rods (4b2) slides through the lower template (3) and is fixedly connected to the mounting base (5). The lower template (3) is provided with an upper top block (3a) on the top. The upper top block (3a) is located directly below the barrel forming cavity (6). The first push plate (4b) is provided with a fixed top column (4b1). The top column (4b1) slides through the lower template (3) and is fixedly connected to the upper top block (3a).

7. A two-color injection mold for a bucket and handle with in-mold mounting function according to claim 6, characterized in that, The foot plate (4) is provided with a demolding cylinder (4d) fixed inside. The top of the demolding cylinder (4d) is provided with a demolding piston rod (4d1). The demolding piston rod (4d1) is fixedly connected to the first push plate (4b). The bottom of the second push plate (4c) is provided with a push rod (4c1) fixedly connected. The second push plate (4c) is provided with several second push rods (4b3) fixedly connected. The top of the lower template (3) is provided with a lower push block (3b). The lower push block (3b) is located at the bottom of the barrel forming cavity (6) and the handle forming cavity (7). The second push rods (4b3) slide through the lower template (3) and are fixedly connected to the lower push block (3b).

8. A two-color injection mold for a bucket and handle with in-mold mounting function according to claim 1, characterized in that, The top plate (1) is provided with a first glue inlet (1a) at the center and a second glue inlet (1b) at the top of the top plate (1). The top plate (1) is provided with a first flow channel plate (1a1) connected to the first glue inlet (1a). The bottom of the first flow channel plate (1a1) is provided with a first nozzle (1a2). The bottom of the first nozzle (1a2) passes through the upper template (2) and is connected to the barrel forming cavity (6). The top plate (1) is provided with a second flow channel plate (1b1) connected to the second glue inlet (1b). The bottom of the second flow channel plate (1b1) is provided with a second nozzle (1b2). The bottom of the second nozzle (1b2) passes through the upper template (2) and is connected to the handle forming cavity (7).

9. A two-color injection mold for a bucket and handle with in-mold mounting function according to claim 1, characterized in that, The foot plate (4) has several fixed solenoid valves (4a) on its outer wall. Each solenoid valve (4a) has several hoses (4a1) on it. The hoses (4a1) on a single solenoid valve (4a) are connected to the first cylinder (5a) or the second cylinder (5b).

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