High-efficiency injection molding equipment and working method

Abstract

The invention provides high-efficiency injection molding equipment and a working method.The high-efficiency injection molding equipment comprises a first base, a first injection molding device, a feeding device and two or more second injection molding devices and second bases, the first injection molding device is arranged on the first base, and the second bases are arranged on the four sides of the first base; the second injection molding devices arranged on the second base are symmetrically arranged on the four sides of the first injection molding device in pairs, a driving device is arranged on the second base, the output end of the driving device is detachably connected with a mold mounting plate arranged below the second injection molding devices, and the feeding device is arranged on one side of the second base through a fixing frame. A discharging opening of the feeding device is connected with the second injection molding device through a conveying pipe, and a discharging hopper is arranged on one side of the top of the first injection molding device; multi-station continuous alternate injection molding can be achieved, the alternate time among multiple stations is shortened, and then the injection molding efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding feeding, and in particular to a high-efficiency injection molding device and a working method. Background Art

[0002] The injection molding machine uses injection molding equipment to inject special types of rubber (such as polyamide-based rubber, polyolefin-based rubber) into the mold to encapsulate electronic components such as chips, coils, circuit boards, etc. placed in the mold to achieve the effect of waterproofing, shockproofing, and dustproofing of electronic components to extend the service life of electronic products. It is widely used in electronic communications, aerospace, cables, connectors, instruments, automation, sensors, medical, wearable devices, automobiles, digital, home appliances and other industries.

[0003] For example, the patent document with Chinese patent application number 201520517668.3 and announcement date 2015.12.02 discloses a multi-station injection molding machine, including a mold clamping system and a melt glue system, the melt glue system is connected to the glue injection hole at the mold clamping system through a connecting pipe; there are several mold clamping systems, each of which includes an upper mold plate, a lower mold plate, and an upper mold plate support structure and a lower mold plate support structure; the upper mold plate is fixedly arranged on the upper mold plate support structure; it also includes several locking systems, each of which includes a fixed bracket, and the fixed brackets are movably connected to the upper mold plate support structure and the lower mold plate support structure; a first power device is arranged on the upper mold plate support structure, and the first power device realizes mold clamping; a second power device and a third power device are arranged on the fixed bracket, the second power device drives the mold clamping system and the locking system to separate or combine, and the third power device is used to lock the two systems after they are combined.

[0004] The above patent document discloses a separately fixed locking system and a separately movable clamping system, and the separation and combination of the two systems are achieved by the movement of the clamping system. It is mostly used for the injection molding of the same product, and the injection molding time of the same product is the same, thereby saving the time required for the production completion cycle; however, for products that require secondary injection molding, for example, some products have two materials for injection molding, and the injection molding time of these two products is different, if a double-station method is installed for injection molding, it will be necessary to wait for the injection molding with a long injection molding time to complete before the injection molding with a short injection molding time can be injected, and multi-station continuous rotation injection molding cannot be achieved, resulting in low injection efficiency. Summary of the invention

[0005] The purpose of the present invention is to provide a high-efficiency injection molding device and a working method, which can realize multi-station continuous rotation injection molding, reduce the rotation time between multiple stations, and thus improve the injection molding efficiency.

[0006] On one hand, the present invention provides the following technical solutions: a high-efficiency injection molding equipment, comprising a first base, a first injection molding device, a feeding device and more than two second injection molding devices and a second base, wherein the first injection molding device is arranged on the first base, the second base is arranged on four sides of the first base, the second injection molding devices arranged on the second base are arranged at intervals on the four sides of the first injection molding device, a driving device is arranged on the second base, the output end of the driving device is detachably connected to a mounting plate arranged below the second injection molding device, the driving device drives the mounting plate to be moved between the first base and the second base, the feeding device is arranged on one side of the second base through a fixed frame, the discharge port of the feeding device is connected to the second injection molding device through a conveying pipe, and a lower hopper is provided on one side of the top of the first injection molding device.

[0007] According to the above arrangement, after the lower mold is installed on the platen, the first upper mold is installed at the bottom of the first injection molding device, and the second upper mold is installed at the bottom of the second injection molding device, the second injection molding device can move the platen on it to the first injection molding device, and then the first injection molding device performs mold closing to complete the first injection molding, and then the driving device of the second injection molding device moves the platen that has completed the first injection molding to the second injection molding device, and after the mold closing, the material is loaded through the loading device, and then the second injection molding is realized. Since more than two second injection molding devices are arranged at intervals on the outside of the first injection molding device, when a second injection molding device performs the second injection molding, another second injection molding device can be moved to the first injection molding device to realize the first injection molding of another second injection molding device. In this way, after a second injection molding device completes the second injection molding, the platen of another second injection molding device has completed the first injection molding on the first injection molding device and moved out, and then the platen of a second injection molding device can be moved again to the first injection molding device to perform the first injection molding again, thereby realizing continuous rotation injection molding of multiple stations, realizing secondary injection molding of the same product, reducing rotation time, and thus improving the efficiency of secondary injection molding of products.

[0008] Furthermore, the first base includes a first fixing frame, the top of which is fixedly connected to a first boss, the second base includes a second fixing frame, the top of which is fixedly connected to a second boss, the first boss and the second boss are at the same height, and the mounting template is detachably arranged on the second boss.

[0009] The above arrangement facilitates the template to be accurately moved from the second base to the first base.

[0010] Furthermore, the first injection molding device includes a first injection molding component, a first connecting plate, more than two first guide columns, a first guide rod, a first driving member and a second driving member. One end of the first guide column passes through the first fixing frame and is fixedly connected to the first fixing plate arranged in the first fixing frame. The other end of the first guide column is provided with a fifth step. The other end of the first guide column passes through the first connecting plate and is detachably connected to the first connecting plate through the fixing member. The first guide rod, the first driving member and the second driving member are all arranged on the first connecting plate.

[0011] The above arrangement enables the first connecting plate to be connected to the first guide column through the fifth step and the fixing member, and then to be integrated with the first guide column, so that during the lifting and lowering process of the first guide column, the first injection molding component can be driven to move up and down synchronously.

[0012] Furthermore, a first driving device is provided between the first fixing plate and the top of the first fixing frame, and two ends of the first driving device are fixedly connected to the first fixing plate and the top of the first fixing frame respectively.

[0013] The above arrangement facilitates the first driving device to drive the first fixing plate to move, thereby driving the first guide column to move up and down.

[0014] Furthermore, the first injection molding component includes a first injection molding tube, a first discharge nozzle, a first screw and a first driving motor, the first guide rod is fixedly connected to the first connecting plate, the first guide rod is sleeved with a first support plate, the first injection molding tube is fixedly connected to the first support plate, one end of the first driving member arranged on both sides of the first injection molding tube is fixedly connected to the first connecting plate, the other end of the first driving member is fixedly connected to the bottom of the first support plate, one end of the second driving member arranged on both sides of the first injection molding tube is fixedly connected to the top of the first support plate, the other end of the second driving member is fixedly connected to the first connecting block arranged above the first injection molding tube, the first driving motor is fixedly connected to the first connecting block, the output end of the first driving motor passes through the first connecting block and is fixedly connected to the first screw arranged in the first injection molding tube, and the first discharge nozzle is arranged at the bottom of the first injection molding tube.

[0015] According to the above arrangement, after the first injection molding device descends through the first guide column to reach the first lower mold on the mounting plate, the first injection molding component can be driven to slide along the first guide rod through the first driving member, and the height of the first injection molding tube can be adjusted so that the first injection molding tube passes through the through hole on the first connecting plate and abuts against the first lower mold on the mounting plate. Then, the first connecting block and the first driving motor are driven downward by the second driving member, and at the same time, the first driving motor is used to drive the first screw rod to rotate in the first injection molding tube, so that the material in the first injection molding tube is squeezed out from the first discharge nozzle to realize the second injection molding.

[0016] Furthermore, the second injection molding device includes a second injection molding component, a second connecting plate, more than two second guide columns, a second guide rod, a third driving member and a fourth driving member. One end of the second guide column passes through the second fixing frame and is fixedly connected to the second fixing plate arranged in the second fixing frame. The other end of the second guide column is provided with a sixth step. The other end of the second guide column passes through the second connecting plate and is detachably connected to the second connecting plate through the fixing member. The second guide rod, the third driving member and the fourth driving member are all arranged on the second connecting plate.

[0017] The above arrangement enables the second connecting plate to be connected to the second guide column through the sixth step and the fixing member, and then to be integrated with the second guide column, so that during the lifting and lowering process of the second guide column, the second injection molding component can be driven to move up and down synchronously.

[0018] Furthermore, a second driving device is provided between the second fixing plate and the top of the second fixing frame, and two ends of the second driving device are fixedly connected to the second fixing plate and the top of the second fixing frame respectively.

[0019] The above arrangement facilitates the second driving device to drive the second fixing plate to move, thereby driving the second guide column to move up and down.

[0020] Furthermore, the second injection molding assembly includes a second injection molding tube, a second discharge nozzle, a second screw and a second driving motor. The second guide rod is fixedly connected to the second connecting plate, and the second guide rod is sleeved with a second support plate. The second injection molding tube is fixedly connected to the second support plate. One end of a third driving member arranged on both sides of the second injection molding tube is fixedly connected to the second connecting plate, and the other end of the third driving member is fixedly connected to the bottom of the second support plate. One end of a fourth driving member arranged on both sides of the second injection molding tube is fixedly connected to the top of the second support plate, and the other end of the fourth driving member is fixedly connected to the second connecting block arranged above the second injection molding tube. The second driving motor is fixedly connected to the second connecting block, and the output end of the second driving motor passes through the second connecting block and is fixedly connected to the second screw arranged in the second injection molding tube. The second discharge nozzle is arranged at the bottom of the second injection molding tube.

[0021] The above arrangement enables, after the second injection molding device descends through the second guide column to reach the second lower mold on the mounting plate, the third driving member can drive the second injection molding assembly to slide along the second guide rod, and adjust the height of the second injection molding tube so that the second injection molding tube passes through the through hole on the second connecting plate and abuts against the second lower mold on the mounting plate. Then, the second connecting block and the second driving motor are driven downward by the fourth driving member, and at the same time, the second driving motor is used to drive the second screw to rotate in the second injection molding tube, thereby squeezing the material in the second injection molding tube out from the second discharge nozzle to achieve the first injection molding.

[0022] Another aspect of the present invention provides the following technical solution: a working method of a high-efficiency injection molding device, comprising the following steps: S1 installs the lower mold on the mounting plate, installs the first upper mold on the bottom of the first connecting plate of the first injection molding device, installs the second upper mold on the bottom of the second connecting plate of the second injection molding device, and the driving device moves the mounting plate on the second injection molding device to the first base, and then starts the lower hopper to feed materials into the first injection molding assembly; S2: After the first upper mold and the lower mold are molded together, injection molding is performed to achieve the first injection molding; after the injection molding is completed, the first injection molding device opens the mold; S3: the driving device on the second injection molding device moves the upper template of the first injection molding device to the second base, and then starts the loading device to load the second injection molding device; S4: the second injection molding device performs injection molding after the mold is closed to achieve the second injection molding; S5 The driving device of another second injection molding device drives the platen on another second injection molding device to move to the first base and perform injection molding on the first injection molding device. After the first injection molding device completes the injection molding, a second injection molding device moves the platen to the first injection molding device again for the first injection molding.

[0023] According to the above arrangement, after the lower mold is installed on the platen, the first upper mold is installed at the bottom of the first injection molding device, and the second upper mold is installed at the bottom of the second injection molding device, the second injection molding device can move the platen on it to the first injection molding device, and then the first injection molding device performs mold closing to complete the first injection molding, and then the driving device of the second injection molding device moves the platen that has completed the first injection molding to the second injection molding device, and after the mold closing, the material is loaded through the loading device, and then the second injection molding is realized. Since more than two second injection molding devices are arranged at intervals on the outside of the first injection molding device, when a second injection molding device performs the second injection molding, another second injection molding device can be moved to the first injection molding device to realize the first injection molding of another second injection molding device. In this way, after a second injection molding device completes the second injection molding, the platen of another second injection molding device has completed the first injection molding on the first injection molding device and moved out, and then the platen of a second injection molding device can be moved again to the first injection molding device to perform the first injection molding again, thereby realizing continuous rotation injection molding of multiple stations, realizing secondary injection molding of the same product, reducing rotation time, and thus improving the efficiency of secondary injection molding of products.

[0024] Furthermore, S1 also includes: starting a vacuum device connected to the feeding device to transport the material in the barrel to the second injection tube of the second injection device through the feeding device and the feeding pipe; S2 also includes: driving the first guide column to descend through the first driving device, thereby driving the first connecting plate to descend, after the first upper mold and the lower mold are abutted against each other, driving the first injection tube to descend along the first guide rod through the first connecting plate through the first driving member, and then driving the first connecting block to descend through the second driving member, and at the same time driving the first screw rod to rotate in the first injection tube through the first driving motor, thereby extruding the material transported into the first injection tube from the first nozzle to achieve the first injection molding; After the first injection molding is completed, the first guide column is driven to rise by the first driving device, and then the first connecting plate is driven to rise, so that the first upper mold is separated from the lower mold, and then the mounting plate on the first boss is removed by a driving device on the second base; S4 also includes: driving the second guide column to descend by the second driving device, thereby driving the second connecting plate to descend, and after the second upper mold and the lower mold are abutted against each other, driving the second injection tube to descend along the second guide rod through the second connecting plate by the third driving member, and then driving the second connecting block to descend by the fourth driving member, and at the same time driving the second screw rod to rotate in the second injection tube by the second driving motor, thereby extruding the material transported into the second injection tube from the second nozzle to realize the first injection molding; S5 also includes: the driving device on another second base pushes the mounting plate from the second boss on another second base horizontally to the first boss, so that the mounting plate on two adjacent second bases can be continuously pushed to the first boss to realize the first injection molding of continuous rotation.

[0025] The above method, by arranging multiple second injection molding devices and driving devices on the four sides of the first injection molding device, and the clamping method of the first injection molding device and the second injection molding device is achieved by guiding the guide column, thereby ensuring the reliability of the clamping, and enabling the lower mold of the mounting plate on a second base to be moved out from under the first injection molding device after the first injection molding is completed by the first injection molding device, and then the mounting plate can be pushed by the driving device on another second base adjacent to the second base to move into the bottom of the first injection molding device at the same time, thereby realizing the first continuous rotation injection molding of the product, reducing the rotation time between multiple workstations, and thereby improving the efficiency of the secondary injection molding of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the present invention.

[0027] Figure 2 for Figure 1 Enlarged view of point C in the middle.

[0028] Figure 3 for Figure 1 Enlarged view of point D in the middle.

[0029] Figure 4It is a structural schematic diagram of the feeding device in the present invention.

[0030] Figure 5 It is a cross-sectional schematic diagram of the feeding device in the present invention.

[0031] Figure 6 It is a local structure of the feeding device in the present invention.

[0032] Figure 7 It is a partial exploded view of the feeding device in the present invention.

[0033] Figure 8 for Figure 6 Enlarged view of point A in the middle.

[0034] Fig. 9 for Figure 7 Enlarged view of point B in the middle. DETAILED DESCRIPTION

[0035] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] like Figure 1-9 As shown, the present invention provides a high-efficiency injection molding equipment, including a first base 1, a first injection molding device 6, a feeding device and more than two second injection molding devices and a second base 2. In this embodiment, the second injection molding device and the second base 2 are both set to four, the first injection molding device is arranged on the first base 1, the second base 2 is arranged on four sides of the first base, the second injection molding devices arranged on the second base 2 are symmetrically arranged on four sides of the first injection molding device 6, and a driving device 5 is arranged on the second base 2. The output end of the driving device 5 is detachably connected to the mounting plate 4 arranged below the second injection molding device, and the discharge port of the feeding device is connected to the second injection molding device through a feeding pipe (not marked in the figure). A lower hopper 3 is provided on one side of the top of the first injection molding device 6, and the lower end of the lower hopper 3 is connected to the first injection molding tube 221, so that the material in the lower hopper 3 can enter the first injection molding tube. In this embodiment, the driving device 5 is a cylinder.

[0037] like Figure 2 and 3 As shown, the first base 1 includes a first fixing frame 11, and the top of the first fixing frame 11 is fixedly connected to a first boss 12, the second base 2 includes a second fixing frame 21, and the top of the second fixing frame 21 is fixedly connected to a second boss 22, the first boss 12 and the second boss 22 are at the same height, and the mounting plate 4 is detachably arranged on the second boss 22, so that the mounting plate 4 can be horizontally moved from the second base 2 to the first base 1.

[0038] The first injection molding device includes a first injection molding component, a first connecting plate 13, more than two first guide columns 14, a first guide rod 15, a first driving member 16 and a second driving member 17. In the present embodiment, four first guide columns 14 are provided, and the four first guide columns 14 are respectively located at the four corners of the outer side of the first boss 12. One end of the first guide column 14 passes through the first fixing frame 11 and is fixedly connected to a first fixing plate 18 arranged in the first fixing frame 11. A first driving device (not shown in the figure) is provided between the first fixing plate 18 and the top of the first fixing frame 11. The first driving device is a cylinder. Both ends of the first driving device are respectively fixedly connected to the first fixing plate 18 and the top of the first fixing frame 11. The other end of the first guide column 14 is provided with a fifth The first guide post 14 is connected to the first connecting plate 13 through the fixing member 19, and the other end of the first guide post 14 passes through the first connecting plate 13 and is detachably connected to the first connecting plate 13 through the fixing member 19, so that the first connecting plate 13 can be connected to the first guide post 14 through the fifth step and the fixing member 19, and then form an integral body with the first guide post 14. In this way, when the first fixing plate 18 is driven to move by the first driving device, and the first fixing plate 18 is fixedly connected with the first guide post 14, and then the first guide post 14 is driven to move up and down during the lifting process, the first injection molding assembly can be synchronously driven up and down. The first guide rod 15, the first driving member 16 and the second driving member 17 are all arranged on the first connecting plate 13. The first injection molding assembly includes a first injection molding tube 111, a first discharge nozzle 112, and a first screw rod (Figure The first guide rod 15 is fixedly connected to the first connecting plate 13, the first guide rod 15 is sleeved with a first support plate 114, the first support plate 114 is provided with a first through hole (not marked in the figure) matching the first guide rod 15, the first support plate 114 is slidably connected to the first guide rod 15, the first injection tube 111 is fixedly connected to the first support plate 114, one end of the first driving member 16 arranged on both sides of the first injection tube 111 is fixedly connected to the first connecting plate 13, the other end of the first driving member 16 is fixedly connected to the bottom of the first support plate 13, one end of the second driving member 17 arranged on both sides of the first injection tube 111 is fixedly connected to the top of the first support plate 114, the second driving member 17 is fixedly connected to the top of the first support plate 114, and the second driving member 17 is fixedly connected to the bottom of the first support plate 13. The other end is fixedly connected to the first connecting block 115 arranged above the first injection tube 111, the first drive motor 113 is fixedly connected to the first connecting block 115, the output end of the first drive motor 113 passes through the first connecting block 115 and is fixedly connected to the first screw arranged in the first injection tube 111, and the first discharge nozzle 112 is arranged at the bottom of the first injection tube 111, so that after the first injection molding device descends through the first guide column 14 to reach the first lower mold (not shown in the figure) on the mounting plate 4, the first injection molding assembly can be driven to slide along the first guide rod 15 through the first driving member 16, and the height of the first injection tube 111 is adjusted, so that the first injection tube 111 passes through the through hole on the first connecting plate 13 and abuts against the first lower mold on the mounting plate 4.Then, the first connecting block 115 and the first driving motor 113 are driven downward by the second driving member 17, and the first driving motor 113 drives the first screw rod to rotate in the first injection tube 111, so that the material in the first injection tube 111 is squeezed out from the first discharge nozzle 112 to realize the second injection molding. The first driving member 16 and the second driving member 17 are both cylinders.

[0039] like Figure 2As shown, the second injection molding device includes a second injection molding assembly, a second connecting plate 23, more than two second guide columns 24, a second guide rod 25, a third driving member 26 and a fourth driving member 27. In this embodiment, four second guide columns 25 are provided, and the four second guide columns 25 are respectively located at the four corners of the outer side of the second boss 22. One end of the second guide column 25 passes through the second fixing frame 21 and is fixedly connected to a second fixing plate 28 arranged in the second fixing frame 21. A second driving device (not shown in the figure) is provided between the second fixing plate 28 and the top of the second fixing frame 21. The second driving device is a cylinder. Both ends of the second driving device are respectively fixedly connected to the second fixing plate 28 and the top of the second fixing frame 21. 4 is provided with a sixth step (not shown in the figure), and the other end of the second guide column 24 passes through the second connecting plate 23 and is detachably connected to the second connecting plate 23 through the fixing member 19, so that the second connecting plate 23 can be connected to the second guide column 24 through the sixth step and the fixing member 19, and then form an integral body with the second guide column 24, so that when the second fixing plate 28 is driven to move by the second driving device, and then the second guide column 24 is driven to move up and down, the second injection molding assembly can be driven up and down synchronously, the second guide rod 25, the third driving member 26 and the fourth driving member 27 are all arranged on the second connecting plate 23, and the second injection molding assembly includes a second injection molding tube 221, a second discharge nozzle 222, a second screw rod (not shown in the figure) and The second driving motor 223, the second guide rod 25 is fixedly connected to the second connecting plate 23, the second guide rod 25 is sleeved with a second support plate 224, the second support plate 224 is provided with a second through hole (not shown) matching the second guide rod 25, the second support plate 224 is slidably connected to the second guide rod 25, the second injection tube 221 is fixedly connected to the second support plate 224, one end of the third driving member 26 arranged on both sides of the second injection tube 221 is fixedly connected to the second connecting plate 23, the other end of the third driving member 26 is fixedly connected to the bottom of the second support plate 224, one end of the fourth driving member 27 arranged on both sides of the second injection tube 221 is fixedly connected to the top of the second support plate 224, the fourth driving member 27 The other end is fixedly connected to the second connecting block 225 arranged above the second injection tube 221, the second drive motor 223 is fixedly connected to the second connecting block 225, the output end of the second drive motor 223 passes through the second connecting block 225 and is fixedly connected to the second screw arranged in the second injection tube 221, and the second discharge nozzle 222 is arranged at the bottom of the second injection tube 221, so that after the second injection molding device descends through the second guide column 24 to reach the second lower mold on the mounting plate 4, the second injection molding assembly can be driven by the third driving member 26 to slide along the second guide rod 25, and the height of the second injection tube 221 is adjusted, so that the second injection tube 221 passes through the through hole on the second connecting plate 23 and abuts against the second lower mold on the mounting plate 4.Then, the fourth driving member 27 drives the second connecting block 225 and the second driving motor 223 to move downward, and the second driving motor 223 drives the second screw rod to rotate in the second injection tube 221, so that the material in the second injection tube 221 is squeezed out from the second discharge nozzle 222 to realize the first injection. The third driving member 26 and the fourth driving member 27 are both cylinders.

[0040] like Figure 1 , Figure 4-9 As shown, the feeding device z01 is arranged on one side of the second base through a fixing frame z02, and the feeding device z01 includes a feeding cylinder, which is connected to the barrel cover z1 of the barrel (not marked in the figure), and the feeding cylinder includes a feeding cylinder body z2 and a discharging cylinder body z3, wherein a drawing shaft z4 and a connecting ring z5 are arranged in the feeding cylinder body z2, and a feeding cavity z6 is formed between the feeding cylinder body z2 and the drawing shaft z4, and a switch valve is arranged in the discharging cylinder body z2, and a storage cavity is formed between the switch valve and the discharging cylinder body z3, one end of the drawing shaft z4 is connected to the switch valve, and the bottom of the drawing shaft z4 is elastically connected to the piston, one end of the limit valve body is connected to the discharging cavity, and the other end of the limit valve body is fixedly connected to a connecting block z7, and a buffer device is arranged on the connecting block z7, and the buffer device generates an upward buffer force on the limit valve body when the limit valve body moves downward. In this embodiment, the switch valve is a one-way valve body, and the buffer device is a swing block.

[0041] A feeding cavity z6 is formed between the feeding cylinder z2 and the drawing shaft z4, the lower end of the connecting ring z5 abuts against the second step portion (not shown in the figure) on the inner side of the feeding cylinder z2, the upper end of the connecting ring z5 abuts against the lower end of the discharging cylinder z3, a sealing ring is provided on the outer side of the connecting ring z5 and the sleeve, the upper end of the drawing shaft z4 is sleeved with a limiting valve body, the limiting valve body passes through the middle part of the connecting ring z5 to the inside of the discharging cylinder z3, the bottom of the limiting valve body is fixedly connected with a connecting block z7, the limiting valve body includes a connecting body z11, a connecting body z12 and a connecting body z13, the connecting body z11, the connecting body z12 and the connecting body z13 are connected to each other, and the connecting body z13 is connected to each other. The connecting body z13 is provided with a through hole (not marked in the figure) matching the material extraction shaft z4, the two ends of the connecting body z12 are respectively connected to the connecting body z11 and the connecting body z13, the outer edge of the connecting body z11 is chamfered to abut against the upper end of the connecting ring z5, and the connecting ring z5 is provided with a second through hole (not marked in the figure) matching the connecting body z12, the connecting body z13 is fixedly connected to the connecting block z7, so that the connecting block z7 is connected to the limit valve body to form an integral body, and the outer side of the connecting block z7 is provided with more than two recessed sides z71, in this embodiment, the recessed side z71 is set Three, the concave side z71 is concave inwardly arranged along the radial direction of the material extraction axis z4, one end of the concave side z71 protrudes outwardly to form a support portion z9, there is a gap between the concave side Z71 and the swing block, a gasket ring z10 is sleeved on the fixed column z8, one end of the swing block z21 deviating from the center of the swing block z21 is sleeved on the fixed column z8 and is rotatably connected to the fixed column z8, the upper end of the guide column z22 arranged on the outer side of the swing block z21 is embedded in the countersunk hole (not marked in the figure) of the connecting ring z5, the lower end of the guide column z22 is sleeved on the fixed column z8 and fixed by the limiter z23, so that the swing block z21 Located between the gasket z10 and the guide column z22, a notch z211 is provided at one end of the swing block z21 close to the connection between the swing block z21 and the fixed column z8. When the swing block z21 is in a horizontal state, the notch abuts against the support part z9, so that in the process of the material flowing from the feed cylinder z2 to the discharge cylinder z3, the swing block z21 can be pushed to rotate to a horizontal state, and then the swing block z21 is supported by the support part z9, so that the swing block z21 is in a horizontal state, and in the process of the limit valve body and the connecting block z7 being lowered, the swing block z21 can rotate itself due to the offset of the center of gravity.

[0042] The outer side of the second connector z12 is provided with more than two second recessed sides z122 which are recessed inwardly in the radial direction of the extraction axis z4, and a second protrusion z1222 is formed between adjacent second recessed sides z122. The inner side of the second through hole is provided with a slide groove (not marked in the figure) matching the second protrusion z1222. The second protrusion z1222 is slidably connected to the slide groove, so that the slide groove can guide the second connector z12 during its up and down movement in the second through hole. At the same time, when the connector z11 is detached from the upper end of the connecting ring z5, the material in the feed cylinder z2 can pass through the second recessed side z1222 and through the second through hole into the discharge cylinder z3.

[0043] The upper end of the connector three z13 is fixedly connected to the connector two z12, and the lower end of the connector three z13 is fixedly connected to the connecting block z7. The outer side of the connector three z13 is provided with more than two inwardly recessed settings along the radial direction of the extraction axis z4 to form a third recessed side z133, and a third protrusion z1333 is formed between adjacent third recessed sides z133, so that the third recessed side z133 can accommodate the guide column z22, so that the guide column z22 can be embedded in the connecting ring z5, thereby preventing the limit valve body and the connecting block z7 from interfering with the up and down movement of the guide column z22.

[0044] In this embodiment, the second recessed side z122 and the third recessed side z133 are both set to three, and the distance from the outer side of the third protrusion z1333 to the center of the connector z13 is greater than the diameter of the second through hole. In this way, when the limit valve body moves upward along the axial direction, the third protrusion z1333 can limit the limit valve body.

[0045] In this embodiment, a step portion z20 is provided on the side of the guide column z22 close to the swing block z21, and a first step portion z24 is provided on the side of the guide column z22 away from the swing block z21. After the limiter z23 is sleeved on the fixed column z8, it is located on the first step portion z24. The end of the fixed column z8 away from the recessed side z71 is provided with a thread, and the limiter z23 is spirally connected to the fixed column z8. The limiter is a nut. In this way, after the gasket z10, the swing block z21 and the guide column z22 are sleeved on the fixed column z8, they can be locked by the limiter z23.

[0046] A fixed shaft z31 and a one-way valve body z32 are provided in the discharge cylinder z3. The lower end of the fixed shaft z31, which is sleeved with a spring z33, is embedded in the upper cavity at the upper end of the one-way valve body z32 and is connected to the upper end of the one-way valve body z32. A valve core z34 is provided on the spring z33. The lower end of the one-way valve body z32 abuts against a connecting body z11. A lower cavity is provided at the lower end of the one-way valve body z32. The valve core z34 abuts against the connection between the upper cavity and the lower cavity. This facilitates the upward movement of the extraction shaft z4 along the axial direction and is embedded in the lower cavity at the lower end of the one-way valve body z32, thereby lifting the valve core z34 at the connection between the upper cavity and the lower cavity, so that the upper cavity is connected to the lower cavity. After the extraction shaft z4 moves downward along the axial direction, the valve core z34 is reset under the action of the spring z33.

[0047] The outer side of the upper cavity is provided with more than two upper cavity openings z35 arranged in a circumference, and the fixed shaft z31 is connected to the upper end of the one-way valve body z32 to form a discharge cavity z36 with the discharge cylinder z3, and the discharge cavity z36 is connected with the upper cavity through the upper cavity opening z35, and the upper end of the discharge cavity z36 is provided with a discharge port z37, and the outer side of the lower cavity is provided with more than two lower cavity openings z38 arranged in a circumference, and a discharge cavity z36 is formed between the lower end of the one-way valve body z32 and the discharge cylinder z3. The material storage chamber z39 is connected with the lower cavity through the lower cavity opening z38, so that the material enters the material storage chamber z39 from the feeding cylinder z2 through the connecting ring z5, and then enters the lower cavity through the lower cavity opening z38. After the valve core z34 is lifted by the material extraction shaft z4, the material can flow from the lower cavity to the upper cavity, and then flow to the discharge chamber z36 through the upper cavity opening z35, and finally flow out from the discharge opening z37 to realize material extrusion and transportation. In this embodiment, the volume of the feeding chamber z6 is greater than the volume of the material storage chamber z39, so as to ensure that the material drawn into the feeding chamber z6 in each feeding process can fill the material storage chamber z39 after passing through the connecting ring z5. The volume of the storage chamber z39 is greater than the volume of the discharge chamber z36, thereby ensuring that each discharge process can fill the discharge chamber z36 after passing through the one-way valve body z32 from the storage chamber z39, thereby ensuring that the material in the discharge chamber z36 can be discharged from the discharge port z37.

[0048] The upper end of the fixed shaft z31 is connected to the connection port z40, and the connection port z40 and the discharge cylinder z3 are sealed at their abutment. One end of the connection port z40 is connected to the discharge chamber z36, and the other end of the connection port z40 is connected to an external vacuum pumping device to achieve vacuum pumping, thereby extracting the material.

[0049] A piston z41 is provided at the lower end of the drawing shaft z4, and an opening is provided on the piston z41 (not marked in the figure). A cover plate z42 is provided at the upper end of the opening. The cover plate z42 is connected to a spring z43 which is sleeved on the drawing shaft z4. A sealing ring is provided at the connection between the feeding cylinder z2 and the barrel cover z1 to facilitate the drawing shaft z4 to extend into the barrel through the barrel cover z1, and after vacuuming, the material in the barrel is squeezed into the feeding chamber z6 through the piston z41.

[0050] A working method of a high-efficiency injection molding device comprises the following specific steps: S1 installs the lower mold on the mounting plate 4, installs the first upper mold on the bottom of the first connecting plate 13 of the first injection molding device, and installs the second upper mold on the bottom of the second connecting plate 23 of the second injection molding device. The driving device moves the mounting plate on the second injection molding device to the first base 1, and then starts the lower hopper to feed the material into the first injection molding assembly; S2: After the first upper mold and the lower mold are molded together, injection molding is performed to achieve the first injection molding; after the injection molding is completed, the first injection molding device 6 opens the mold; S3: the driving device on the second injection molding device moves the upper template of the first injection molding device 6 to the second base 2, and then starts the feeding device to feed the second injection molding device 6; S4: the second injection molding device 6 performs injection molding after the mold is closed to achieve the second injection molding; S5 The driving device of another second injection molding device 6 drives the loading plate on another second injection molding device 6 to move to the first base 1 and perform injection molding on the first injection molding device. After the first injection molding device 6 completes the injection molding, a second injection molding device 6 moves the loading plate to the first injection molding device again for the first injection molding.

[0051] S1 also includes: starting a vacuum device connected to the feeding device to transport the material in the barrel to the second injection tube 221 of the second injection device through the feeding device and the feeding pipe; S4 also includes: driving the second guide column 24 to descend through the second driving device, thereby driving the second connecting plate 23 to descend, and after the second upper mold and the lower mold are abutted against each other, driving the second injection tube 221 to descend along the second guide rod 25 through the second connecting plate 23 through the third driving member 26, and then driving the second connecting block 225 to descend through the fourth driving member 27, and at the same time driving the second screw rod to rotate in the second injection tube 221 through the second driving motor 223, thereby extruding the material transported to the second injection tube 221 from the second nozzle 222 to achieve the second injection molding; After the second injection molding is completed, the second guide column 24 is driven up by the second driving device, and then the second connecting plate 23 is driven up, so that the second upper mold is separated from the lower mold, and then the mounting plate 4 is horizontally pushed from the second boss 21 on the second base 2 to the first boss 11 adjacent to the second boss 21 by the driving device 5 on the second base 2; S2 also includes: driving the first guide column 14 to descend through the first driving device, thereby driving the first connecting plate 13 to descend, and after the first upper mold and the lower mold are abutted against each other, driving the first injection tube 111 to descend along the first guide rod 14 through the first driving member 16 and passing through the first connecting plate 13, and then driving the first connecting block 115 to descend through the second driving member 17, and at the same time driving the first screw rod to rotate in the first injection tube 111 through the first driving motor 113, thereby extruding the material transported into the first injection tube 111 from the first nozzle 112 to achieve the first injection molding; After the first injection molding is completed, the first guide column 14 is driven upward by the first driving device, thereby driving the first connecting plate 13 upward, so that the first upper mold is separated from the lower mold.

[0052] S5 also includes: removing the mounting plate 4 on the first boss 11 by a driving device on a second base 2, and at the same time, pushing the mounting plate 4 horizontally from the second boss 21 on the other second base 2 to the first boss 11 by a driving device 5 on another second base 2 adjacent to the second base 2 in a clockwise or counterclockwise direction with multiple second bases arranged with the first boss 11 as the center, so that the mounting plate 4 on two adjacent second bases 2 can be continuously pushed to the first boss 11 to realize the first injection molding of continuous rotation.

[0053] In this embodiment, the first injection molding time is shorter than the second injection molding time, and the injection molding time includes: the time used for mold closing, injection molding, cooling and mold opening, among which the cooling time is mainly different. For example, for plastic and silicone materials, the cooling time of plastic is shorter than the cooling time of silicone, so the injection molding time is short. In this way, after the first injection molding device completes the first injection molding, it can move to a second injection molding device for the second injection molding. Since the second injection molding time is long, after the second injection molding device completes the first injection molding and moves out, the second injection molding device completes the unloading and other operations, so that the second injection molding device can uninterruptedly enter the first injection molding device for the first injection molding.

[0054] The working principle of the present invention is as follows: after installing the lower mold on the platen, installing the first upper mold at the bottom of the first injection molding device and installing the second upper mold at the bottom of the second injection molding device 6, the second injection molding device 6 can move the platen on it to the first injection molding device, and then the first injection molding device performs mold closing to complete the first injection molding, and then the driving device of the second injection molding device 6 moves the platen that has completed the first injection molding to the second injection molding device, and after the mold closing, the material is loaded through the loading device, and then the second injection molding is realized. Since more than two second injection molding devices are arranged at intervals on the outside of the first injection molding device , so that when a second injection molding device is performing a second injection molding, another second injection molding device can be moved to the first injection molding device to perform a first injection molding of another second injection molding device. In this way, after a second injection molding device completes the second injection molding, the mounting plate of another second injection molding device has completed the first injection molding on the first injection molding device and moved out, and then the mounting plate of the second injection molding device can be moved again to the first injection molding device to perform the first injection molding again, thereby realizing continuous rotation injection molding of multiple stations, realizing secondary injection molding of the same product, reducing rotation time, and thereby improving the efficiency of secondary injection molding of products.

Claims

1. A high-efficiency injection molding equipment, comprising a first base, a first injection molding device, a feeding device, and two or more second injection molding devices and a second base, characterized in that: The first injection molding device is arranged on the first base, the second base is arranged on the four sides of the first base, the second injection molding devices arranged on the second base are arranged at intervals on the four sides of the first injection molding device, a driving device is arranged on the second base, the output end of the driving device is detachably connected to the mounting plate arranged below the second injection molding device, the driving device drives the mounting plate to be moved between the first base and the second base, the feeding device is arranged on one side of the second base through a fixed frame, the discharge port of the feeding device is connected to the second injection molding device through a conveying pipe, and a lower hopper is provided on one side of the top of the first injection molding device.

2. A high-efficiency injection molding equipment according to claim 1, characterized in that: The first base includes a first fixing frame, the top of which is fixedly connected to a first boss, the second base includes a second fixing frame, the top of which is fixedly connected to a second boss, the first boss and the second boss are at the same height, and the mounting template is detachably arranged on the second boss.

3. A high-efficiency injection molding equipment according to claim 1, characterized in that: The first injection molding device includes a first injection molding component, a first connecting plate, more than two first guide columns, a first guide rod, a first driving member and a second driving member. One end of the first guide column passes through the first fixing frame and is fixedly connected to the first fixing plate arranged in the first fixing frame. The other end of the first guide column is provided with a fifth step. The other end of the first guide column passes through the first connecting plate and is detachably connected to the first connecting plate through the fixing member. The first guide rod, the first driving member and the second driving member are all arranged on the first connecting plate.

4. A high-efficiency injection molding equipment according to claim 3, characterized in that: A first driving device is provided between the first fixing plate and the top of the first fixing frame, and two ends of the first driving device are fixedly connected to the first fixing plate and the top of the first fixing frame respectively.

5. The high-efficiency injection molding equipment according to claim 3, characterized in that: The first injection molding component includes a first injection molding tube, a first discharge nozzle, a first screw and a first driving motor. The first guide rod is fixedly connected to the first connecting plate, the first guide rod is sleeved with a first support plate, the first injection molding tube is fixedly connected to the first support plate, one end of the first driving member arranged on both sides of the first injection molding tube is fixedly connected to the first connecting plate, the other end of the first driving member is fixedly connected to the bottom of the first support plate, one end of the second driving member arranged on both sides of the first injection molding tube is fixedly connected to the top of the first support plate, the other end of the second driving member is fixedly connected to the first connecting block arranged above the first injection molding tube, the first driving motor is fixedly connected to the first connecting block, the output end of the first driving motor passes through the first connecting block and is fixedly connected to the first screw arranged in the first injection molding tube, and the first discharge nozzle is arranged at the bottom of the first injection molding tube.

6. The high-efficiency injection molding equipment according to claim 1, characterized in that: The second injection molding device includes a second injection molding assembly, a second connecting plate, more than two second guide columns, a second guide rod, a third driving member and a fourth driving member. One end of the second guide column passes through the second fixing frame and is fixedly connected to the second fixing plate arranged in the second fixing frame. The other end of the second guide column is provided with a sixth step. The other end of the second guide column passes through the second connecting plate and is detachably connected to the second connecting plate through the fixing member. The second guide rod, the third driving member and the fourth driving member are all arranged on the second connecting plate.

7. A high-efficiency injection molding equipment and working method according to claim 6, characterized in that: A second driving device is disposed between the second fixing plate and the top of the second fixing frame, and two ends of the second driving device are fixedly connected to the second fixing plate and the top of the second fixing frame respectively.

8. The high-efficiency injection molding equipment according to claim 6, characterized in that: The second injection molding assembly includes a second injection molding tube, a second discharge nozzle, a second screw and a second driving motor. The second guide rod is fixedly connected to the second connecting plate, and the second guide rod is sleeved with a second support plate. The second injection molding tube is fixedly connected to the second support plate. One end of the third driving member arranged on both sides of the second injection molding tube is fixedly connected to the second connecting plate, and the other end of the third driving member is fixedly connected to the bottom of the second support plate. One end of the fourth driving member arranged on both sides of the second injection molding tube is fixedly connected to the top of the second support plate, and the other end of the fourth driving member is fixedly connected to the second connecting block arranged above the second injection molding tube. The second driving motor is fixedly connected to the second connecting block, and the output end of the second driving motor passes through the second connecting block and is fixedly connected to the second screw arranged in the second injection molding tube. The second discharge nozzle is arranged at the bottom of the second injection molding tube.

9. A working method of a high-efficiency injection molding device, characterized in that: The following steps are involved: S1 installs the lower mold on the mounting plate, installs the first upper mold on the bottom of the first connecting plate of the first injection molding device, installs the second upper mold on the bottom of the second connecting plate of the second injection molding device, and the driving device moves the mounting plate on the second injection molding device to the first base, and then starts the lower hopper to feed materials into the first injection molding assembly; S2: After the first upper mold and the lower mold are molded together, injection molding is performed to achieve the first injection molding; after the injection molding is completed, the first injection molding device opens the mold; S3: the driving device on the second injection molding device moves the upper template of the first injection molding device to the second base, and then starts the loading device to load the second injection molding device; S4: the second injection molding device performs injection molding after the mold is closed to achieve the second injection molding; S5 The driving device of another second injection molding device drives the platen on another second injection molding device to move to the first base and perform injection molding on the first injection molding device. After the first injection molding device completes the injection molding, a second injection molding device moves the platen to the first injection molding device again for the first injection molding.

10. The working method of a high-efficiency injection molding device according to claim 9, characterized in that: The following steps are involved: S1 also includes: starting a vacuum device connected to the feeding device to transport the material in the barrel to the second injection molding tube of the second injection molding device through the feeding device and the feeding pipe; S2 also includes: driving the first guide column to descend through the first driving device, thereby driving the first connecting plate to descend, after the first upper mold and the lower mold are abutted against each other, driving the first injection tube to descend along the first guide rod through the first connecting plate through the first driving member, and then driving the first connecting block to descend through the second driving member, and at the same time driving the first screw rod to rotate in the first injection tube through the first driving motor, thereby extruding the material transported into the first injection tube from the first nozzle to achieve the first injection molding; After the first injection molding is completed, the first guide column is driven to rise by the first driving device, and then the first connecting plate is driven to rise, so that the first upper mold is separated from the lower mold, and then the mounting plate on the first boss is removed by a driving device on the second base; S4 also includes: driving the second guide column to descend by the second driving device, thereby driving the second connecting plate to descend, and after the second upper mold and the lower mold are abutted against each other, driving the second injection tube to descend along the second guide rod through the second connecting plate by the third driving member, and then driving the second connecting block to descend by the fourth driving member, and at the same time driving the second screw rod to rotate in the second injection tube by the second driving motor, thereby extruding the material transported into the second injection tube from the second nozzle to realize the second injection molding; S5 also includes: a driving device on another second base pushes the mounting plate from the second boss on another second base horizontally to the first boss, so that the mounting plate on two adjacent second bases can be continuously pushed to the first boss to realize the first injection molding of continuous rotation.

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