Injection molding machine and injection molding method for injection molding of different products based on different injection molding amounts through same upper mold

Abstract

According to the injection molding machine and the injection molding method for injection molding of different products based on different injection molding amounts through the same upper mold, the upper mold is fixedly connected to the upper mold plate of the injection molding machine, when injection molding needs to be carried out on two products, the lower mold plates can be moved, then the two lower molds are driven to be aligned with the upper mold in sequence, and therefore the injection molding efficiency is improved; in this way, two products with different sizes can be formed in the two lower molds by controlling two different injection molding quantities in sequence, and after cooling and mold opening of the upper mold and the lower molds are achieved, one injection mold body is pulled in the horizontal direction through the transverse moving assembly, so that one injection mold body is separated from the other injection mold body; and then the bearing body is jacked up in the vertical direction through the jacking assembly, so that the supporting convex ring connected to the mold core in a sleeving mode is separated from the mold core, and then the supporting convex ring jacks up the formed product and is separated from the mold core.

Description

Technical Field

[0001] The present invention relates to the technical field of injection molding machines, and in particular to an injection molding machine and an injection molding method for molding different products based on different injection volumes using the same mold. Background Art

[0002] An injection molding machine is the primary device for molding thermoplastics or thermosetting plastics into various shapes. Its core function is to melt granular plastic raw materials and inject them into a mold. After cooling and shaping, the desired shape of the plastic product is obtained. During the injection molding process, the fully molten plastic material is stirred by the screw, injected into the mold cavity at high pressure, and cooled and solidified to obtain a molded product, such as a transparent plastic cup and its plastic cup lid.

[0003] For example, the patent document with Chinese patent application number 202410771818.7 and publication date 2024.11.08 discloses a transparent plastic cup lid injection molding machine and an operating method, including a support base, wherein the upper part of the left side of the support base is fixedly connected to the screw injection molding machine body, the right end of the screw injection molding machine body is fixedly connected to the accumulator, and a one-way valve is fixedly connected between the top of the accumulator and the screw injection molding machine body. The transparent plastic cup lid injection molding machine consists of an extrusion adjustment mechanism and a mold switching mechanism; the mold switching mechanism is driven by a motor to operate, so that the support plate and four sets of upper and lower molds are rotated 90 degrees in stages to switch the positions of the four sets of upper and lower molds. After the upper and lower mold positions are switched, the upper and lower molds on the left side are pressed against the conical nozzle by the circular guide sleeve with the T-shaped pressing plate for injection molding, while the upper and lower molds on the right side of the support tube are opened and unloaded. Through this cyclic division of labor, the injection molding production efficiency is improved.

[0004] In the above-mentioned document, the storage space between the main pressing plate and the sub-pressing plate is adjusted by adjusting the coordination of the screw sleeve, the main pressing plate and the support ring, thereby adjusting the distance between the conical nozzle on the extrusion tube and the upper mold to control the injection volume. However, when it is necessary to complete the injection molding of two combined products, since the two products have different sizes and matching relationships, for example, an inner cup is provided for an outer cup inner sleeve, and an assembly relationship is provided between the inner cup and the outer cup, the injection volume controlled in this way cannot be accurately controlled. In addition, after different products are formed by controlling different injection volumes, the products on different injection molding machines need to be demolded separately, moved and then assembled, which makes the entire injection molding machine larger in size and complex in structure. Summary of the Invention

[0005] The purpose of the present invention is to provide an injection molding machine and an injection molding method for molding different products based on different injection molding quantities using the same upper mold. The machine and the injection molding method can use the same upper mold to inject different injection molding quantities into different lower molds to form a combined product with a simple structure and a small volume, and improve the injection molding efficiency of the combined product.

[0006] On one hand, the present invention provides an injection molding machine for molding different products based on different injection volumes using the same upper mold, including an injection mold arranged on the injection molding machine, the injection mold including an upper mold and two lower molds matching the upper mold, the upper mold being fixedly connected to the upper mold plate of the injection molding machine, the lower mold being fixedly connected to the lower mold plate of the injection molding machine, the two lower mold plates being arranged to move relative to the upper mold plate, the lower mold including a carrier, a mold core body, a support body, a transverse movement assembly, and two injection mold bodies arranged on the carrier, the injection mold bodies arranged relatively to each other and the countersunk holes arranged on the carrier forming an accommodating cavity, A supporting convex ring is provided in the accommodating cavity, and a transverse movement assembly is provided on one side of the supporting body of the lower mold. The transverse movement assemblies of the two lower mold plates are arranged opposite to each other. The transverse movement assembly is connected to the injection mold body and drives the injection mold body to move closer or farther away. A mold core is provided on the mold core body below the supporting body. After the mold core passes through the accommodating cavity, a material cavity is formed between the injection mold body, the supporting convex ring sleeved on the mold core, and the upper mold. The upper material cavities of the two lower molds are different. A lifting assembly is provided on the supporting body below the mold core body. After passing through the mold core body, the lifting assembly abuts against the separation surface formed at the abutment point between the mold core bodies.

[0007] In the above arrangement, since the upper mold is fixedly connected to the upper template of the injection molding machine, and then two lower molds are provided, when two products need to be injection molded, the lower template can be moved relative to the upper template or the upper template can be moved without moving the two lower templates, thereby driving the two lower molds to align with the upper mold in succession. In this way, by controlling the different injection amounts twice in succession, two products of different sizes can be formed in the material cavities of the two lower molds, and after cooling, the upper mold and the lower mold are separated to realize mold opening, and then an injection mold body can be pulled in the horizontal direction by a transverse movement component, so that one injection mold body and the other injection mold body are separated or approached to realize demoulding or mold closing, and then the supporting body is lifted in the vertical direction by the lifting component, so that the supporting convex ring sleeved on the mold core is separated from the mold core, and the mold is closed. The supporting convex ring lifts the molded product and separates it from the mold core. Since one upper mold is matched with two lower molds to form two products of different sizes, and each lower mold is only provided with one transverse movement component, and the transverse movement components of the two lower molds are relatively arranged, and one transverse movement component realizes the separation and approach of the two injection mold bodies, so that the lower mold does not need multiple transverse movement components to realize the separation and approach of the two injection mold bodies, making the entire lower mold smaller in size and simple in structure. At the same time, the transverse movement components on the two lower molds are relatively arranged, which can further reduce the volume of the injection molding machine, and the control of different injection quantities can be achieved by moving an upper mold relative to the lower mold. At the same time, the injection molding of products of different sizes can be achieved only by the relative arrangement of the upper and lower molds, thereby improving the injection molding efficiency.

[0008] Furthermore, a groove is formed between the support body and the mold core body, and a movable plate and a lifting component fixedly connected to the movable plate are provided in the groove.

[0009] Furthermore, the upper mold includes a fixed plate, a positioning ring, a nozzle, an upper mold body, a positioning sleeve and a fixed block. The fixed plate is provided with a first step portion and a second step portion in sequence from the upper end surface to the lower end surface, and the diameter of the first step portion is larger than the diameter of the second step portion. The upper end of the positioning sleeve is provided with a convex ring portion matching the second step portion. The lower end of the positioning sleeve passes through the second step portion and then passes through the fixed plate. The nozzle matching the positioning sleeve is inserted into the positioning sleeve, and the convex ring portion abuts on the second step portion. The lower end of the positioning ring is inserted into the convex ring portion and abuts on the first step portion. The upper end of the positioning ring protrudes from the upper end surface of the fixed plate.

[0010] The above arrangement enables the positioning sleeve to be installed in the upper mold, and the positioning sleeve can be limited by the convex ring portion and the second step portion of the fixing plate.

[0011] Furthermore, the upper mold body is arranged below the fixed plate, and the upper mold body is provided with a receiving groove 1 matching the two oppositely arranged injection mold bodies and a receiving groove 2 matching the fixed block in sequence from the lower end surface to the upper end surface. The diameter of the receiving groove 1 is larger than the diameter of the receiving groove 2. The fixed block is provided with a first countersunk hole matching the positioning sleeve. The lower end of the positioning sleeve arranged through the fixed plate is embedded in the upper mold body and abuts against the first countersunk hole of the fixed block. The lower end of the fixed block extends downward to form a convex ring. The lower end of the nozzle inserted into the positioning sleeve passes through the fixed block and is flush with the convex ring, and is connected to the material cavity.

[0012] The above setting, through the joint action of the positioning ring and the fixed block, can limit the positioning sleeve in the vertical direction after the positioning sleeve is installed and embedded in the fixed plate and the upper mold body, and then after the nozzle is inserted into the positioning sleeve, it can be set flush with the protrusion at the lower end of the fixed block to facilitate the injection of molding material into the material cavity.

[0013] Furthermore, the two lower molds are lower mold 1 and lower mold 2, lower mold 1 includes a carrier body 1, a mold core body 1, a support body 1, a transverse movement assembly 1 and two injection mold bodies 1 arranged on the carrier body 1, the upper end of the carrier body 1 is provided with more than two guide columns, the carrier body 1 is provided with a through groove 1, the injection mold body 1 is arranged in the through groove 1, and the upper ends of the two injection mold bodies 1 after relative movement are formed with a second countersunk hole matching the convex ring, a boss 1 is provided at both ends of the injection mold body 1, and a slide groove 1 matching the boss 1 is provided on both sides of the through groove 1, and the bottom side of the through groove 1 is recessed downward to form a third step portion.

[0014] The above arrangement facilitates the upper mold body to be molded together with the carrier body 1 through the guide column, and the provision of the slide groove 1 facilitates the sliding of the injection mold body 1 in the slide groove 1.

[0015] Furthermore, the transverse movement component is arranged on one side of the carrier, and the transverse movement component includes a driving device, a mounting plate, and two or more connecting rods, a fixing rod, a spring, and a mounting rod. The driving device is fixedly connected to the mounting plate, and the output end of the driving device passes through the mounting plate and is connected to one side of the injection mold body. One end of the fixing rod passes through the mounting plate and is connected to one side of the carrier, and the other end of the fixing rod is provided with a limiting ring, which limits the mounting plate sleeved on the fixing rod, and the spring sleeved on the fixing rod is provided with two limiting rings. The ends are respectively connected to one side of the mounting plate and one side of the carrier. One end of the connecting rod located on both sides of the output end of the driving device passes through the side of the injection molded body close to the driving device to the side of the injection molded body away from the driving device. The connecting rod is connected to the injection molded body in relative sliding connection. The other end of the connecting rod is connected to the mounting plate. The mounting rod passes through the side of the other injection molded body away from the injection molded body to the side of the other injection molded body close to the injection molded body, and is fixedly connected to one end of the connecting rod so that the mounting rod, the connecting rod and the other injection molded body are connected.

[0016] With the above arrangement, after the product has cooled, when the two injection molded bodies need to move relatively away from each other, the driving device pulls the injection molded body to move toward the side close to the mounting plate. Since the driving device is fixed to the mounting plate, and the mounting plate is sleeved on the fixing rod, the compressible spring is slidably arranged on the fixing rod, the driving device moves relative to the injection molded body through the principle of action and reaction, so that the driving device drives the mounting plate to move on the fixing rod toward the direction close to the carrier and compresses the spring, and at the same time drives the other injection molded body to move away from the injection molded body through the connecting rod, thereby causing the injection molded body to move relatively and separate from the other injection molded body, so that the two injection molded bodies can be demoulded. When the two injection molded bodies need to move relative to each other and approach to be combined, the driving device pushes the injection molded body in the opposite direction to move to the side away from the mounting plate, so that the driving device moves in the opposite direction relative to the injection molded body. At the same time, under the joint action of the compression spring, the driving device drives the mounting plate to move on the fixed rod in the direction away from the carrier. During this process, the spring gradually extends and drives the other injection molded body to move in the direction close to the injection molded body through the connecting rod, so that the injection molded body and the other injection molded body move relative to each other and then approach and combine. After the combination, the spring returns to its original length. At the same time, the limiting ring on the fixed rod limits the mounting plate, thereby preventing the combined injection molded body and the other injection molded body from moving in the horizontal direction.

[0017] Furthermore, the lower end surface of the carrier body 1 abuts against the upper end surface of the core body 1 to form a separation surface, the core body 1 is provided with a core 1 and a fourth countersunk hole, one end of the core 1 is embedded in and connected to the fourth countersunk hole, a supporting convex ring 1 is provided in the third step portion, the upper end of the supporting convex ring 1 protrudes and a through groove 1 is provided on the bottom side, and the lower ends of the two injection mold bodies 1 after relative movement are formed with a accommodating cavity 1 matching the supporting convex ring 1, and the other end of the core 1 passes through the carrier body 1 and the supporting convex ring 1 in sequence and is embedded in the two injection mold bodies 1, forming a material cavity 1 with the supporting convex ring 1, the two injection mold bodies 1 and the convex ring respectively.

[0018] According to the above arrangement, after the two injection mold bodies are moved away from each other relative to each other, the supporting body 1 can be lifted up by the lifting component 1 provided on the supporting body 1, thereby driving the supporting convex ring 1 to move upward to generate a force on the cooled product, so that the product moves upward relative to the mold core 1, thereby separating from the mold core 1.

[0019] Furthermore, a groove is formed between the support body and the mold core body, and a movable plate and a lifting assembly fixedly connected to the movable plate are provided in the groove. The lifting assembly includes two or more push rods, a guide rod, a driving member and a spring. One end of the push rod is fixedly connected to the movable plate, and the other end of the push rod passes through the mold core and abuts against the separation surface. The two ends of the spring sleeved on the push rod are respectively connected to the movable plate and the mold core. The two ends of the guide rod arranged through the movable plate are respectively connected to the support body and the mold core. The output end of the driving member passes through the support body and is connected to the movable plate.

[0020] The above setting enables the driving member to lift the movable plate 1 up in the groove 1, thereby driving the push rod 1 to rise and lift the carrier 1, so that the supporting protrusion ring 1 on the carrier 1 lifts the product, thereby realizing demoulding, and the spring 2 can reset the push rod 1.

[0021] Furthermore, the lower mold includes a lower mold 2, which includes a carrier 2, a transverse movement component 2 and two injection mold bodies 2 arranged on the carrier 2, and the transverse movement component 2 includes a driving device 2, a mounting plate 2, a mounting rod 2 and two or more connecting rods 2. The driving device 2 is fixedly connected to the mounting plate 2, and the output end of the driving device 2 passes through the mounting plate 2 and is connected to one side of an injection mold body 2. One end of the connecting rod 2 located on both sides of the output end of the driving device 1 passes through the side of an injection mold body 2 close to the driving device 2 to the side of an injection mold body 2 away from the driving device 2. The connecting rod 2 is connected to the injection mold body 2 in relative sliding connection, and the other end of the connecting rod 2 is connected to the mounting plate 2. The mounting rod 2 passes through the side of the other injection mold body 2 away from the injection mold body 2 to the side of the other injection mold body 2 close to the injection mold body 2, and is fixedly connected to one end of the connecting rod 2 so that the mounting rod 2, the connecting rod 2 and the other injection mold body 2 form a whole.

[0022] With the above arrangement, after the product cools down, when the two injection mold bodies need to move away from each other, the driving device 2 pulls the first injection mold body 2 to move toward the side close to the mounting plate 2. Since the driving device 2 is fixed on the mounting plate 2, the driving device 2 moves relative to the first injection mold body 2 through the principle of action and reaction force, so that the driving device 2 drives the mounting plate 2 to move toward the direction close to the carrier 1, and at the same time drives the other injection mold body 2 to move away from the first injection mold body 2 through the connecting rod 2, thereby making the first injection mold body 2 move away from the other injection mold body 2 relative to each other, so that the two injection mold bodies 2 can complete the demoulding. When moving close to the combination, the driving device 2 pushes the first mold body 2 in the opposite direction to move to the side away from the mounting plate 2, so that the driving device 2 moves in the opposite direction relative to the first mold body 2, so that the driving device 2 drives the mounting plate 1 to move on the fixing rod 2 in the direction away from the carrier body 2, and at the same time drives the other injection mold body 2 to move in the direction close to the first mold body 2 through the connecting rod 2, so that the first mold body 2 and the other injection mold body 2 move relative to each other and then approach to be combined, thereby preventing the first mold body 2 and the other injection mold body 2 from moving in the horizontal direction after being combined, so that the two injection mold bodies can be separated and approached by a transverse movement component, and the structure is simple and the reliability is good.

[0023] Another aspect of the present invention provides an injection molding method for molding different products based on different injection molding amounts using the same mold, comprising the following steps: S1, drive the lower mold and the upper mold to move relative to each other, align the lower mold with the upper mold, and then drive the upper mold to move downward to close the mold with the lower mold; S2 controls the injection amount of the nozzle in the upper mold according to the material cavity 1 formed in the lower mold 1, so that the material cavity 1 in the lower mold 1 is just filled after injection, and then drives the upper mold to move upward and separate from the lower mold 1 to realize mold opening; S3 drives the lower mold plate to continue moving in the same direction, so that the lower mold 1 is removed from under the upper mold. At the same time, the lower mold 2 set on the lower mold plate is moved to under the upper mold and aligned with the upper mold. Then, the upper mold is driven to move downward to close the mold with the lower mold 2. S4 controls the injection volume of the nozzle in the upper mold according to the second cavity formed in the second lower mold, so that the second cavity in the second lower mold is just filled after injection, and then drives the upper mold to move upward and separate from the second lower mold to realize mold opening. At the same time, the two injection mold bodies of the first lower mold are demoulded by the transverse moving component of the first lower mold, and the product in the first lower mold is taken out after demoulding; S5 drives the lower mold plate to move in the opposite direction, so that the lower mold 2 is removed from under the upper mold. The two injection mold bodies 2 of the removed lower mold 2 are demoulded by the transverse movement component of the lower mold 2, and the product in the lower mold 2 is taken out after demoulding. At the same time, the lower mold 1 is moved again to the bottom of the upper mold and is molded together with the upper mold. S6 repeats the steps S2-S4, so that the lower mold 1 and the lower mold 2 are continuously and alternately moved and then injected with the upper mold to form a combined product.

[0024] The above method sets two different lower molds on the lower template, and the two lower molds share the same upper mold. After moving, the two different lower molds are alternately docked with the upper mold to achieve mold closing, control different injection volumes according to different material cavities in the lower mold, and open the mold, so that two products that can be matched and combined to form an integrated whole can be alternately injected, thereby improving the injection molding efficiency of the combined product.

[0025] Furthermore, step S4 also includes: after the lower mold is removed from the bottom of the upper mold, after the product in the lower mold is cooled, the driving device drives the other injection mold body to slide along the through groove in the direction away from the injection mold body, so that the two injection mold bodies move relative to each other and separate, and after the distance between the two injection mold bodies is greater than the width of the product, the movement is stopped, and then the driving member lifts the movable plate to rise in the groove, so as to drive the ejector pin to rise and protrude the separation surface to lift the carrier body, so that the supporting protrusion ring connected to the mold core lifts the product to realize demolding, and the demolded product is taken away by the robot. After demolding, the ejector pin and the injection mold body are reset, and the process enters step S5.

[0026] The above arrangement, through the spacing between the two injection mold bodies after movement and separation being greater than the width of the product, facilitates the removal of the horizontal limit of the cooled product, and then facilitates the rise of the ejector pin 1 and the protrusion of the separation surface to lift the carrier body 1, so that the pair of supporting convex rings on the product of the mold core 1 generate a force in the vertical direction, thereby making the product separate from the mold core 1 and achieving demoulding, thereby facilitating the removal of the product from the lower mold 1. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0028] Figure 2 It is a cross-sectional schematic diagram of the upper mold and the lower mold after the mold is closed in the present invention.

[0029] Figure 3 It is a cross-sectional schematic diagram of the lower mold 2 in the present invention.

[0030] Figure 4 It is a partial exploded view of the present invention.

[0031] Figure 5 This is a partial exploded view from another perspective of the present invention.

[0032] Figure 6 for Figure 2 Enlarged view of point A in the middle.

[0033] Figure 7 for Figure 3 Enlarged view of point B in the middle.

[0034] Figure 8 It is a partial exploded view of the present invention.

[0035] Figure 9 This is a cross-sectional view of an injection molded product of the present invention.

[0036] Figure 10 for Figure 8 Enlarged view of point C in the middle.

[0037] Figure 11 This is a schematic structural diagram of the transverse movement component 1 of the present invention. DETAILED DESCRIPTION

[0038] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0039] like Figure 1-11 As shown, the present invention provides an injection molding machine for molding different products based on different injection volumes with the same upper mold, including an injection mold arranged on the injection molding machine, the injection mold including an upper mold 1 and two lower molds matching the upper mold 1. In this embodiment, the two lower molds are lower mold 1 21 and lower mold 2 22. The upper mold 1 is fixedly connected to an upper mold plate (not shown) of the injection molding machine, and the upper mold plate is connected to the output end of a driving cylinder 3 arranged in the vertical direction. The upper mold plate is driven to move up and down in the vertical direction by the driving cylinder 3. The lower mold 1 21 and the lower mold 2 22 arranged in the same straight line are fixedly connected to a lower mold plate (not shown) of the injection molding machine. The lower mold plate is installed on a workbench (not shown) of the injection molding machine and is connected to the output end of an electric telescopic cylinder (not shown) arranged on the workbench. The workbench is provided with a slide rail (not shown) matching the lower mold plate, and the lower mold plate is driven by the electric telescopic cylinder to achieve horizontal movement on the slide rail of the workbench.

[0040] like Figure 1 、 Figure 2 ,and Figure 4As shown, the upper mold 1 includes a fixed plate 11, a positioning ring 12, a nozzle 13, an upper mold body 14, a positioning sleeve 15 and a fixed block 16. The fixed plate 11 is matched with the upper mold plate. The fixed plate 11 is provided with a first step portion 17 and a second step portion 18 in sequence from the upper end surface to the lower end surface, and the diameter of the first step portion 17 is larger than the diameter of the second step portion 18. The upper end of the positioning sleeve 15 is provided with a convex ring portion 19 that matches the second step portion 18. The lower end of the positioning sleeve 15 passes through the second step portion 18 and then passes through the fixed plate 11. The nozzle 13 that matches the positioning sleeve 15 is inserted into the fixed plate. In the positioning sleeve 15, the convex ring portion 19 abuts against the second step portion 18, and the lower end of the positioning ring 12 is inserted into the convex ring portion 19 and abuts against the first step portion 17. In this way, the positioning sleeve 15 and the nozzle 13 inserted into the positioning sleeve 15 can be limited by the positioning ring 12 and fixed in the upper mold 1. The upper end of the positioning ring 12 protrudes from the upper end surface of the fixing plate 11. After the fixing plate 11 is matched and connected with the upper template, the upper end of the positioning ring 12 is matched and connected with the material barrel (not marked in the figure) provided on the upper template, so that the material in the barrel can be punched into the upper mold 1.

[0041] For reference Figure 6 As shown, the upper mold body 14 is arranged below the fixed plate 11, and the upper mold body 14 is provided with a receiving groove 20 matching the two oppositely arranged injection mold bodies 28 and a receiving groove 23 matching the fixed block 16 in sequence from the lower end surface to the upper end surface. The diameter of the receiving groove 20 is larger than the diameter of the receiving groove 23. The fixed block 16 is provided with a first countersunk hole (not marked in the figure) matching the positioning sleeve 15. The lower end of the positioning sleeve 15 provided through the fixed plate 11 is embedded in the upper mold body 14 and abuts against the first countersunk hole of the fixed block 16, and fixed The lower end of the block 16 extends downward to form a convex ring 24. The lower end of the nozzle 13 inserted into the positioning sleeve 15 passes through the fixed block 16 and is flush with the convex ring 24, and is connected to the material cavity 45. Through the joint action of the positioning ring 12 and the fixed block 16, after the positioning sleeve 15 is installed and embedded in the fixed plate 11 and the upper mold body 14, the positioning sleeve 15 can be limited in the vertical direction, and then after the nozzle 13 is inserted into the positioning sleeve 15, it can be just flush with the convex block at the lower end of the fixed block 16, so as to facilitate the injection of molding materials into the material cavity 45.

[0042] In this embodiment, if Figure 1 and Figure 2 、 Figure 4As shown, the lower mold 21 includes a carrier 25, a mold core 26, a support 27, a lateral movement assembly 1 and two injection mold bodies 28 arranged on the carrier 25. The upper end of the carrier 25 is provided with two or more guide pillars 29, and the upper mold body 14 is provided with a guide hole 1 (not marked in the figure) that matches the guide pillar 29. During the mold closing process between the upper mold 1 and the lower mold 21, the guide pillar 29 is inserted into the guide hole 1 to play a guiding role, so that the upper mold body 14 can pass through the guide pillar 29 and The carrier 25 is used for mold closing. A through groove 30 is provided on the carrier 25. The injection mold body 28 is arranged in the through groove 30. A second countersunk hole 32 matching the convex ring 24 is formed at the upper ends of the two injection mold bodies 28 after relative movement. A boss 1 (not marked in the figure) is provided at both ends of the injection mold body 28. A slide groove 31 matching the boss 1 is provided on both sides of the through groove 30, which can facilitate the sliding of the injection mold body 28 in the slide groove 31. The bottom side of the through groove 30 is recessed downward to form a third step portion 33.

[0043] like Figure 1 、 Figure 4 and Figure 8 、 11As shown, the transverse moving assembly is arranged on one side of the carrier 25, the injection mold body 28 includes two injection mold bodies 281 and another injection mold body 282 arranged opposite to each other, the transverse moving assembly includes a driving device 34, a mounting plate 35 and two or more connecting rods 36, a fixing rod 37, a spring 38, and a mounting rod 361. The driving device 34 is fixedly connected to the mounting plate 35. The output end of the driving device 34 passes through the mounting plate 35 and is fixedly connected to one side of the injection mold body 28. One end of the fixing rod 37 passes through the mounting plate 35 and is fixedly connected to one side of the carrier 25. The other end of the fixing rod 37 is provided with a limiting ring 39. The ring 39 limits the mounting plate 35 sleeved on the fixing rod 37. The two ends of the spring 38 sleeved on the fixing rod 37 are respectively connected to one side of the mounting plate 35 and one side of the carrier 25. One end of the connecting rod 36 located on both sides of the output end of the driving device 34 passes through the side of the injection mold body 281 close to the driving device 34 to the side of the injection mold body 281 away from the driving device 34, so that the connecting rod 36 and the injection mold body 281 are connected in a relative sliding manner. The other end of the connecting rod 36 is fixedly connected to the mounting plate 35. The mounting rod 361 passes through the side of the other injection mold body 282 away from the injection mold body 281. The side of the injection mold body 282 passes through the side of the other injection mold body 282 close to the injection mold body 281, and is spirally connected to one end of the connecting rod 36 by a thread. After the connection, two step surfaces 362 are formed on the installation rod 361 and the connecting rod 36 respectively. The two step surfaces 362 limit and lock the other injection mold body 282, so that the installation rod 361 passes through the other injection mold body 282 and is connected to the connecting rod 36. The three are connected to form a whole. In this way, after the product is cooled, when the two injection mold bodies 28 need to move away from each other, the driving device 34 pulls the injection mold body 281 to move to the side close to the mounting plate 35. Since the driving device 34 is fixed on The mounting plate 35 is sleeved on the fixing rod 37, and the spring 38 is compressed and slidably arranged on the fixing rod 37. Through the principle of action and reaction, the driving device 34 moves relative to the first injection mold body 281, so that the driving device 34 drives the mounting plate 35 to move on the fixing rod 37 in the direction of approaching the carrier body 25 and compressing the spring 38. At the same time, the connecting rod 36 drives the other injection mold body 282 to move away from the first injection mold body 281, thereby causing the first injection mold body 281 to move relative to and separate from the other injection mold body 282, so that the two injection mold bodies 28 can be demoulded.When the two injection mold bodies 28 need to move relative to each other and be close to each other, the driving device 34 pushes the injection mold body 281 to move to the side away from the mounting plate 35, so that the driving device 34 moves in the opposite direction relative to the injection mold body 281. At the same time, under the joint action of the compression spring 38, the driving device 34 drives the mounting plate 35 to move on the fixing rod 37 in the direction away from the carrier 25. During this process, the spring 38 gradually extends, and at the same time, the other injection mold body 282 is driven by the mounting plate 35 through the connecting rod 36 to move towards the injection mold body 281, thereby The first molded body 281 and the second molded body 282 are moved relative to each other and then brought together for bonding. After bonding, the spring 38 returns to its original length, and the limiting ring 39 on the fixing rod 37 limits the mounting plate 35, thereby preventing the two molded bodies 281 and 282 from moving horizontally. This allows a single drive device to move the two molded bodies closer or farther from each other, eliminating the need for two separate drive devices. This reduces the weight of the entire device. In this embodiment, the drive device 1 is a drive cylinder or a drive motor, and the mounting rod 1 is a threaded rod.

[0044] like Figure 1 and Figure 2 As shown, the lower end surface of the carrier body 25 abuts against the upper end surface of the core body 26 to form a separation surface 40. The core body 26 is provided with a core 41 and a fourth countersunk hole 42. One end of the core 41 is embedded in the fourth countersunk hole 42. A supporting protrusion 43 is provided in the third step portion 33. The upper end of the supporting protrusion 43 is protruding from the bottom side of the through groove 30. After the two injection mold bodies 28 move closer to each other, a receiving cavity 44 is formed at the lower end thereof to match the supporting protrusion 43. The other end of the core 41 is sequentially After passing through the carrier body 25 and the supporting convex ring 43, it is embedded in the two injection mold bodies 28. The mold core 41 forms a material cavity 45 with the supporting convex ring 43, the two injection mold bodies 28 and the convex ring 24 respectively. In this way, after the two injection mold bodies 28 move away from each other relative to each other, the carrier body 25 can be lifted up by the lifting component set on the support body 27, and then the supporting convex ring 43 is driven to move upward to generate a force on the cooled product, so that the product moves upward relative to the mold core 41, thereby separating from the mold core 41.

[0045] like Figure 1 and 2As shown, the support body 27 is fixedly connected to the lower template, and a groove 46 is formed between the support body 27 and the mold core body 26. A movable plate 47 and a lifting component 1 fixedly connected to the movable plate 47 are provided in the groove 46. The lifting component 1 includes more than two push rods 48, a guide rod 49, a driving member 1 (not marked in the figure) and a spring 2 50. One end of the push rod 48 is fixedly connected to the movable plate 47, and the other end of the push rod 48 passes through the mold core body 26 and abuts against the separation surface 40. The two ends of the spring 2 50 sleeved on the push rod 48 are respectively connected to the movable plate 47 and the guide rod 49. The mold core is connected to the mold core 26. A guide rod 49, which runs through the movable plate 47, connects to the support 27 and the mold core 26 at both ends. The output end of the driver 1, located below the support 27, passes through the support 27 and connects to the movable plate 47. The driver 1 is connected to the lower mold plate, enabling the driver 1 to lift the movable plate 47 within the groove 46. This in turn drives the ejector 1 48 to lift the carrier 25, causing the support protrusion 43 on the carrier 25 to lift the product, thereby achieving demolding. A spring 2 50 drives the ejector 1 48 back to its original position. In this embodiment, the driver 1 is a pneumatic cylinder.

[0046] like Figure 1 、 Figure 3 and Figure 4 As shown, the lower mold 22 includes a carrier 2 51, a mold core 2 52, a support 2 53, a transverse moving assembly 2 and two injection mold bodies 2 57 arranged on the carrier 2 51. The upper end of the carrier 2 51 is provided with two or more guide posts 2 54, and the upper mold body 14 is provided with a guide hole 2 (not marked in the figure) matching the guide posts 2 54. During the mold closing process between the upper mold 1 and the lower mold, the guide posts 2 54 are inserted into the guide holes 2 to play a guiding role, so that the upper mold body 14 can pass through the guide posts 2 54 and The carrier body 2 51 is used for mold closing. A through groove 2 55 is provided on the carrier body 2 51. The injection mold body 2 57 is arranged in the through groove 2 55. The upper ends of the two injection mold bodies 2 57 that move closer to each other are formed with a fifth countersunk hole 58 that matches the convex ring 24. Bosses 2 59 are provided at both ends of the injection mold body 2 57. Both sides of the through groove 2 55 are provided with slide grooves 2 56 that match the bosses 2 59, which can facilitate the sliding of the injection mold body 2 57 in the slide grooves 2 56. The bottom side of the through groove 2 55 is recessed downward to form a sixth step portion 60.

[0047] See also Figure 5 、 Figure 8 and Figure 10As shown, in this embodiment, the transverse movement component 2 is arranged opposite to the transverse movement component 1, the injection mold body 2 includes two injection mold bodies 571 and another injection mold body 572 arranged opposite to each other, the transverse movement component 2 is arranged on one side of the carrier body 2 51, the transverse movement component 2 includes a driving device 2 61, a mounting plate 2 62 and two or more connecting rods 2 63, a fixing rod 2 64, a spring 3 65, and a mounting rod 2 631. The driving device 2 61 is fixedly connected to the mounting plate 2 62, and the output end of the driving device 2 61 passes through the mounting plate 2 62 and is fixedly connected to one side of the injection mold body 2 57. One end of the fixing rod 2 64 passes through the mounting plate 2 62 and is fixedly connected to one side of the carrier body 2 51. The other end is provided with a limiting ring 2 66, which limits the mounting plate 2 62 sleeved on the fixing rod 2 64. The two ends of the spring 3 65 sleeved on the fixing rod 2 64 are respectively connected to one side of the mounting plate 2 62 and one side of the carrier 2 51. One end of the connecting rod 2 63 located on both sides of the output end of the driving device 2 61 passes through the side of the injection mold 2 571 close to the driving device 2 61 to the side of the injection mold 2 571 away from the driving device 2 61, so that the connecting rod 2 63 and the injection mold 2 571 are connected in a relative sliding manner. The other end of the connecting rod 2 63 is fixedly connected to the mounting plate 2 62, and the mounting rod 2 631 passes from the other injection mold 2 572 away from the one One side of the second injection mold body 571 passes through the side of the other second injection mold body 572 close to the first injection mold body 571, and is spirally connected to one end of the second connecting rod 63 by a thread. After the connection, two step surfaces 633 are formed on the second mounting rod 631 and the second connecting rod 63 respectively. The two step surfaces 633 limit and lock the other second injection mold body 572, so that the second mounting rod 631 passes through the other second injection mold body 572 and is connected to the second connecting rod 63. After that, the three are connected to form a whole. In this way, after the product cools down, when the two second injection mold bodies 57 need to move away from each other, the driving device 61 pulls the second injection mold body 571 to move to the side close to the second mounting plate 62. The second drive device 61 is fixed to the second mounting plate 62, and the second mounting plate 62 is sleeved on the second fixing rod 64, and the third spring 65 is compressed and slidably arranged on the second fixing rod 64. Through the principle of action and reaction, the second drive device 61 is moved relative to the first injection mold body 571, so that the second drive device 61 drives the second mounting plate 62 to move on the second fixing rod 64 in the direction of approaching the second carrier body 51 and compressing the third spring 65. At the same time, the second injection mold body 572 is driven by the second connecting rod 63 to move away from the first injection mold body 571, thereby causing the first injection mold body 571 to move relative to and separate from the other second injection mold body 572, so that the two second injection mold bodies 57 are demoulded.When the two injection mold bodies 57 need to move relatively close to each other, the driving device 61 pushes the first injection mold body 571 in the opposite direction to move away from the mounting plate 62, so that the driving device 61 moves in the opposite direction relative to the first injection mold body 571. At the same time, under the joint action of the compression spring 65, the driving device 61 drives the mounting plate 62 on the fixing rod 64 to move away from the carrier body 51. During this process, the spring 65 gradually extends and drives the other injection mold body 572 to move closer to the first injection mold body 571 through the connecting rod 63 under the drive of the mounting plate 62, so that the first injection mold body 571 is relative to the other injection mold body 572. After movement, they approach and engage. After engagement, spring three 65 returns to its original length, and simultaneously, retaining ring two 66 on fixing rod two 64 limits mounting plate two 62, thereby preventing horizontal movement of one second injection mold body 571 and the other second injection mold body 572 after engagement. This allows a single drive device two to move the two second injection mold bodies closer together or farther apart, eliminating the need for separate drive devices. This reduces the overall weight of the device. Furthermore, drive device one and drive device two are positioned relative to each other, enabling the two lower molds to be positioned closer together, facilitating movement of the upper mold between the two lower molds. In this embodiment, drive device two is a drive cylinder or a drive motor, and mounting rod two is a threaded rod.

[0048] like Figure 3 and Figure 7 As shown, the lower end surface of the second carrier body 51 abuts against the upper end surface of the second core body 52 to form a separation surface 67. The second core body 52 is provided with a second core 68 and a fifth countersunk hole 69. One end of the second core 68 is embedded in the fifth countersunk hole 69. A second supporting convex ring 70 is provided in the sixth step portion 60. The upper end of the second supporting convex ring 70 is provided on the bottom side of the second through groove 55. After the two injection mold bodies 57 move closer to each other, a second accommodating cavity 71 matching the second supporting convex ring 70 is formed at the lower end. The other end of the second core 68 is sequentially After passing through the carrier body 2 51 and the supporting convex ring 2 70, it is embedded in the two injection mold bodies 2 57. The mold core 2 68 forms a material cavity 2 72 with the supporting convex ring 2 70, the two injection mold bodies 2 57 and the convex ring 24 respectively. In this way, after the two injection mold bodies 2 57 move away from each other relative to each other, the carrier body 2 51 can be lifted up by the lifting component 2 set on the supporting body 2 53, and then the supporting convex ring 2 70 is driven to move upward to generate a force on the cooled product, so that the product moves upward relative to the mold core 2 68, thereby separating from the mold core 2 68.

[0049] like Figure 3 and Figure 4As shown, a groove 2 73 is formed between the support body 2 53 and the mold core body 2 52, and a movable plate 2 74 and a lifting assembly 2 fixedly connected to the movable plate 2 74 are provided in the groove 2 73. The lifting assembly 2 includes more than two ejector rods 2 75, a guide rod 2 76, a driving member 2 (not shown in the figure) and a spring 4 77. One end of the ejector rod 2 75 is fixedly connected to the movable plate 2 74, and the other end of the ejector rod 2 75 passes through the mold core body 2 52 and abuts against the separation surface 2 67. The two ends of the spring 4 77 sleeved on the ejector rod 2 75 are respectively connected to the movable plate The second guide rod 76 is connected to the second mold core body 52. ​​The two ends of the second guide rod 76 provided through the second movable plate 74 are respectively connected to the second support body 53 and the second mold core body 52. ​​The output end of the second driving member passes through the second support body 53 and is connected to the second movable plate 74. This enables the second driving member to lift the second movable plate 74 upward within the second groove 73, thereby driving the second push rod 75 to lift the second carrier body 51, so that the second support protrusion 70 on the second carrier body 51 lifts the product, thereby achieving demolding. The fourth spring 77 can drive the second push rod 75 to return. In this embodiment, the second driving member is a driving cylinder.

[0050] In this embodiment, if Figure 9 As shown, the lower mold 22 is used to form the outer cup body 100, and the lower mold 1 21 is used to form the inner cup body 101. The outer cup body 100 includes an outer cup body 1001 and a step portion 79 arranged on the outer side of the top of the outer cup body 1001. The inner cup body 101 includes an inner cup body 1010 and a boss 3 1012 arranged on the outer side of the top of the outer cup body 1010. The difference between the lower mold 22 and the lower mold 1 21 lies in the size and shape of the material cavity 2 72 formed in the lower mold 22, and the product formed by the material cavity 2 72 in the lower mold 22 matches the product formed by the material cavity 1 45 in the lower mold 1 21. After the combination, they form an integral body, and a groove three 78 is formed at the lower end of the material cavity one 45, so that a boss three 1012 matching the groove three 78 is formed at the lower end of the product formed after injection molding in the material cavity one 45, and a fifth step portion 79 matching the boss three is formed at the lower end of the material cavity two 72, so that the product formed after injection molding in the material cavity one 45 can be sleeved in the product formed after injection molding in the material cavity two 72, and the boss three is clamped with the fifth step portion 79 through the principle of thermal expansion and contraction, so that the product formed after injection molding in the material cavity one 45 and the product formed after injection molding in the material cavity two 72 are combined to form an integral body.

[0051] An injection molding method for molding different products based on different injection volumes using the same mold as above includes the following specific steps: S1. Drive the lower mold plate to move so that the two lower molds disposed on the lower mold plate and in the same straight line are sequentially moved to below the upper mold 1 and aligned with the upper mold 1. Then, drive the upper mold 1 downward to close the mold with the lower mold 21. In another embodiment, the two lower molds are also kept stationary, and the upper mold plate is moved to move relative to the two lower mold plates to achieve relative movement.

[0052] S2 controls the injection amount of the nozzle 13 in the upper mold 1 according to the material cavity 45 formed in the lower mold 21, so that the material cavity 45 in the lower mold 21 is just filled after injection, and then drives the upper mold 1 to move upward and separate from the lower mold 21 to realize mold opening.

[0053] S3 drives the lower template to continue moving in the same direction, so that the lower mold 1 21 is removed from under the upper mold 1, and at the same time, the lower mold 2 22 set on the lower template is moved to under the upper mold 1 and aligned with the upper mold 1, and then the upper mold 1 is driven to move downward to close the mold with the lower mold 2 22.

[0054] S4 controls the injection amount of the nozzle 13 in the upper mold 1 according to the material cavity 2 72 formed in the lower mold 2 22, so that the material cavity 2 72 in the lower mold 2 22 is just filled after injection, and then drives the upper mold 1 to move upward and separate from the lower mold 2 22 to realize mold opening, and at the same time demoulds the removed lower mold 1 21, and takes out the product in the lower mold 1 21 after demoulding. In this embodiment, after the product in the lower mold 1 21 cools down, the driving device 1 34 drives the other injection mold body 1 282 along the through groove 1 30 away from the injection mold body 1 The mold body 28 is moved relative to each other and separated by sliding in the direction of a 281. When the distance between the two mold bodies 28 is greater than the width of the product, the movement is stopped. Then, the movable plate 47 is lifted up in the groove 46 by the driving member to drive the ejector pin 48 to rise and bulge out the separation surface to lift the carrier 25, so that the supporting protrusion ring 43 sleeved on the mold core 41 lifts the product to realize demoulding. The demoulded inner cup body is taken away and placed by the robot. After demoulding, the ejector pin 48 and the mold body 28 are reset; then the process goes to step S5.

[0055] S5 drives the lower template to move in the opposite direction, so that the lower mold 22 is removed from the bottom of the upper mold 1. After the product in the lower mold 22 is cooled, the driving device 2 61 drives the other injection mold body 2 572 to slide along the through groove 2 55 in the direction away from the injection mold body 2 571, so that the two injection mold bodies 2 57 move relative to each other and separate. After the distance between the two injection mold bodies 2 57 is greater than the width of the product, the movement is stopped. Then, the driving member lifts the movable plate 2 74 to rise in the groove 2 73 to drive the push rod 2 75 to rise and lift the supporting body 2 51 on the protruding separation surface, so that the supporting convex ring 2 70 connected to the mold core 2 68 lifts the product to realize demoulding. The demoulded outer cup body is taken away by the robot and put on the inner cup body. After demoulding, the push rod 2 75 and the injection mold body 2 57 are reset; then the outer cup body and the inner cup body are completely cooled to form an injection molding combined product.

[0056] The lower mold 21 is moved again to the bottom of the upper mold 1 and is closed with the upper mold 1 .

[0057] S6 repeats steps S2 to S4, so that the lower mold 1 21 and the lower mold 2 22 are continuously moved alternately and then injected into the upper mold 1 to form a combined product.

[0058] The above method sets two different lower molds on the lower template, and the two lower molds share the same upper mold. After moving, the two different lower molds are alternately docked with the upper mold to achieve mold closing, control different injection volumes according to different material cavities in the lower mold, and open the mold, so that two products that can be matched and combined to form an integral whole can be alternately injected, thereby improving the injection molding efficiency of the combination product, and injection molding is performed through the same upper mold, and after the inner cup body is cooled, the demolded outer cup body is placed on the inner cup body, so that the step three of the outer cup body and the boss of the inner cup body are fitted and then cooled again to make the formed combination product better fitting, and the two products can also be separated after cooling.

[0059] The working principle of the present invention is as follows: the upper mold is fixedly connected to the upper mold plate of the injection molding machine. When two products need to be injection molded, the lower mold plate can be moved, and then the two lower molds can be driven to align with the upper mold in succession. In this way, by controlling the different injection amounts twice in succession, two products of different sizes can be formed in the two lower molds. After cooling and the upper mold and the lower mold are opened, an injection mold body is pulled in the horizontal direction by the transverse movement component to separate one injection mold body from the other injection mold body. Then, the supporting body is lifted in the vertical direction by the lifting component, so that the supporting convex ring sleeved on the mold core is separated from the mold core, and then the supporting convex ring lifts the molded product and separates it from the mold core.

Claims

1. An injection molding machine for molding different products based on different injection volumes, comprising an injection mold provided on the injection molding machine, the injection mold comprising an upper mold fixedly connected to an upper mold plate of the injection molding machine, characterized in that: The cam is provided with a plurality of support members, each of which is provided with a plurality of support members, and the plurality of support members are provided with a plurality of support members, each of which is provided with a plurality of support members, and the plurality of support members are provided with a plurality of support members.

2. The injection molding machine for molding different products based on different injection volumes according to claim 1, characterized in that: The upper mold includes a fixed plate, a positioning ring, a nozzle, an upper mold body, a positioning sleeve and a fixed block. The fixed plate is provided with a first step portion and a second step portion in sequence from the upper end surface to the lower end surface, and the diameter of the first step portion is larger than the diameter of the second step portion. The upper end of the positioning sleeve is provided with a convex ring portion matching the second step portion. The lower end of the positioning sleeve passes through the second step portion and then passes through the fixed plate. The nozzle matching the positioning sleeve is inserted into the positioning sleeve, and the convex ring portion abuts on the second step portion. The lower end of the positioning ring is inserted into the convex ring portion and abuts on the first step portion. The upper end of the positioning ring protrudes from the upper end surface of the fixed plate.

3. The injection molding machine for molding different products based on different injection volumes according to claim 2, characterized in that: The upper mold body is arranged below the fixed plate, and the upper mold body is provided with a receiving groove 1 matching the two oppositely arranged injection mold bodies and a receiving groove 2 matching the fixed block in sequence from the lower end surface to the upper end surface. The diameter of the receiving groove 1 is larger than the diameter of the receiving groove 2. The fixed block is provided with a first countersunk hole matching the positioning sleeve. The lower end of the positioning sleeve arranged through the fixed plate is embedded in the upper mold body and abuts against the first countersunk hole of the fixed block. The lower end of the fixed block extends downward to form a convex ring. The lower end of the nozzle inserted into the positioning sleeve passes through the fixed block and is flush with the convex ring and is connected to the material cavity.

4. The injection molding machine for molding different products based on different injection volumes according to the same mold as claimed in claim 1, characterized in that: The lower mold includes a lower mold 1, which includes a carrier 1, a mold core body 1, a support body 1, a transverse movement assembly 1 and two injection mold bodies 1 arranged on the carrier 1. The upper end of the carrier 1 is provided with more than two guide columns, and the carrier 1 is provided with a through groove 1. The injection mold body 1 is arranged in the through groove 1. After relative movement, the upper ends of the two injection mold bodies 1 are formed with a second countersunk hole matching the convex ring, and both ends of the injection mold body 1 are provided with a boss 1, and both sides of the through groove 1 are provided with a slide groove matching the boss 1, and the bottom side of the through groove 1 is recessed downward to form a third step portion.

5. The injection molding machine for molding different products based on different injection volumes according to claim 4, characterized in that: The transverse moving assembly is arranged on one side of the carrier, and the transverse moving assembly includes a driving device, a mounting plate, two or more connecting rods, a fixing rod, a spring, and a mounting rod. The driving device is fixedly connected to the mounting plate, and the output end of the driving device passes through the mounting plate and is connected to one side of the injection mold body. One end of the fixing rod passes through the mounting plate and is connected to one side of the carrier. The other end of the fixing rod is provided with a limiting ring, and the limiting ring is used to limit the mounting plate sleeved on the fixing rod. The two ends of the spring sleeved on the fixing rod are respectively connected One end of a connecting rod connected to one side of the mounting plate and one side of the carrier, located on both sides of the output end of the driving device, passes through from a side of the injection molded body close to the driving device to a side of the injection molded body away from the driving device, the connecting rod is connected to the injection molded body for relative sliding, the other end of the connecting rod is connected to the mounting plate, the mounting rod passes through from a side of the other injection molded body away from the injection molded body to a side of the other injection molded body close to the injection molded body, and is fixedly connected to one end of the connecting rod so that the mounting rod, the connecting rod and the other injection molded body form a whole.

6. The injection molding machine for molding different products based on different injection volumes according to claim 4, characterized in that: The lower end surface of the carrier body 1 abuts against the upper end surface of the core body 1 to form a separation surface, the core body 1 is provided with a core 1 and a fourth countersunk hole, one end of the core 1 is embedded in and connected to the fourth countersunk hole, a supporting convex ring 1 is provided in the third step portion, the upper end of the supporting convex ring 1 is protruding and a through groove 1 is provided on the bottom side, and the lower ends of the two injection mold bodies 1 that move closer to each other are formed with a accommodating cavity 1 that matches the supporting convex ring 1, and the other end of the core 1 passes through the carrier body 1 and the supporting convex ring 1 in sequence and is embedded in the two injection mold bodies 1, forming a material cavity 1 with the supporting convex ring 1, the two injection mold bodies 1 and the convex rings respectively.

7. The injection molding machine for molding different products based on different injection volumes according to claim 4, characterized in that: A groove is formed between the support body and the mold core body, and a movable plate and a lifting assembly fixedly connected to the movable plate are provided in the groove. The lifting assembly includes two or more push rods, a guide rod, a driving member and a spring. One end of the push rod is fixedly connected to the movable plate, and the other end of the push rod passes through the mold core body and abuts against the separation surface. The two ends of the spring sleeved on the push rod are respectively connected to the movable plate and the mold core body. The two ends of the guide rod arranged through the movable plate are respectively connected to the support body and the mold core body. The output end of the driving member passes through the support body and is connected to the movable plate.

8. The injection molding machine for molding different products based on different injection volumes according to claim 1, characterized in that: The lower mold includes a lower mold 2, which includes a carrier 2, a transverse movement component 2 and two injection mold bodies 2 arranged on the carrier 2. The transverse movement component 2 includes a driving device 2, a mounting plate 2, a mounting rod 2 and two or more connecting rods 2. The driving device 2 is fixedly connected to the mounting plate 2. The output end of the driving device 2 passes through the mounting plate 2 and is connected to one side of an injection mold body 2. One end of the connecting rod 2 located on both sides of the output end of the driving device passes through the side of the injection mold body 2 close to the driving device 2 to the side of the injection mold body 2 away from the driving device 2. The connecting rod 2 is connected to the injection mold body 2 in relative sliding connection. The other end of the connecting rod 2 is connected to the mounting plate 2. The mounting rod 2 passes through the side of the other injection mold body 2 away from the injection mold body 2 to the side of the other injection mold body 2 close to the injection mold body 2, and is fixedly connected to one end of the connecting rod 2 so that the mounting rod 2, the connecting rod 2 and the other injection mold body 2 form a whole.

9. The injection molding method of the injection molding machine for molding different products based on different injection volumes according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1, drive the lower mold and the upper and lower molds to move relative to each other, align the lower mold with the upper mold, and then drive the upper mold to move downward to close the mold with the lower mold; S2 controls the injection amount of the nozzle in the upper mold according to the material cavity 1 formed in the lower mold 1, so that the material cavity 1 in the lower mold 1 is just filled after injection, and then drives the upper mold to move upward and separate from the lower mold 1 to realize mold opening; S3 drives the lower mold plate to continue moving in the same direction, so that the lower mold 1 is removed from under the upper mold. At the same time, the lower mold 2 set on the lower mold plate is moved to under the upper mold and aligned with the upper mold. Then, the upper mold is driven to move downward to close the mold with the lower mold 2. S4 controls the injection volume of the nozzle in the upper mold according to the second cavity formed in the second lower mold, so that the second cavity in the second lower mold is just filled after injection, and then drives the upper mold to move upward and separate from the second lower mold to realize mold opening. At the same time, the two injection mold bodies of the first lower mold are demoulded by the transverse moving component of the first lower mold, and the product in the first lower mold is taken out after demoulding; S5 drives the lower mold plate to move in the opposite direction, so that the lower mold 2 is removed from under the upper mold. The two injection mold bodies 2 of the removed lower mold 2 are demoulded by the transverse movement component of the lower mold 2, and the product in the lower mold 2 is taken out after demoulding. At the same time, the lower mold 1 is moved again to the bottom of the upper mold and is molded together with the upper mold. S6 repeats the steps S2-S4, so that the lower mold 1 and the lower mold 2 are continuously moved alternately and then injected with the upper mold to form a combined product.

10. The injection molding method of the injection molding machine for molding different products based on different injection volumes according to the same mold as in claim 9, characterized in that: Step S4 also includes: after the lower mold 1 is removed from the bottom of the upper mold, after the product in the lower mold 1 is cooled, the driving device 1 drives the other injection mold body 1 to slide along the through groove 1 in the direction away from the injection mold body 1, so that the two injection mold bodies 1 move relative to each other and separate, and after the distance between the two injection mold bodies 1 is greater than the width of the product, the movement is stopped, and then the driving member lifts the movable plate 1 in the groove 1 to drive the ejector rod 1 to rise and protrude the separation surface to lift the carrier body 1, so that the supporting protrusion ring 1 connected to the mold core 1 lifts the product to achieve demolding, and the demolded product is taken away by the robot arm. After demolding, the ejector rod 1 and the injection mold body 1 are reset, and the process enters step S5.

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