High-adaptability injection molding machine

Abstract

The invention relates to the field of injection molding machines, in particular to a high-adaptability injection molding machine which comprises a supporting seat, an injection mechanism and a mold locking mechanism are connected to the supporting seat, the mold locking mechanism comprises a first supporting plate fixed to the supporting seat, a fixed mold mounting plate is fixed to the first supporting plate, and a fixed mold is detachably connected to the fixed mold mounting plate; the fixed mold is connected with the movable mold in an openable and closable manner, the movable mold and the fixed mold are closed to form a mold cavity, the movable mold is detachably connected to the movable mold mounting plate, the movable mold mounting plate is provided with an opening and closing driving mechanism, and the movable mold mounting plate and the fixed mold mounting plate are each provided with a plurality of T-shaped grooves and first threaded holes, so that alignment of the first threaded holes and the second threaded holes is greatly facilitated; in addition, after the T-shaped insertion block is inserted into the T-shaped groove, an operator does not need to support the movable mold or the fixed mold, the operator only needs to directly install screws, the operation is very convenient, and the adaptation degree of the injection molding machine is greatly improved.

Description

Technical Field

[0001] The present invention relates to the field of injection molding machines, and particularly to an injection molding machine with high adaptability. Background Art

[0002] An injection molding machine is also known as an injection molding press or an injection machine. It is the main molding equipment for making various shaped plastic products from thermoplastic or thermosetting plastics using plastic molding dies. It is divided into vertical, horizontal, and all-electric types. The injection molding machine can heat the plastic, apply high pressure to the molten plastic, and inject it to fill the mold cavity.

[0003] A patent with the application number CN202223164831.1 discloses an injection molding machine that is convenient for maintenance. Although this injection molding machine facilitates the disassembly and installation of the fixed mold mounting plate, there are still the following drawbacks when installing the fixed mold on the fixed mold mounting plate and the moving mold on the moving mold mounting plate: 1) When the fixed mold is integrally formed with the fixed mold mounting plate and the moving mold is integrally formed with the moving mold mounting plate, in this case, when it is necessary to replace the fixed mold and the moving mold, it is often necessary to disassemble and replace the entire fixed mold and the fixed mold mounting plate and the moving mold and the moving mold mounting plate, which is not only time-consuming and laborious but also causes a huge waste of materials; 2) When the fixed mold is detachably connected to the fixed mold mounting plate and the moving mold is detachably connected to the moving mold mounting plate, in this case, when it is necessary to replace the fixed mold and the moving mold, it is only necessary to disassemble the fixed mold from the fixed mold mounting plate and the moving mold from the moving mold mounting plate and replace them with new fixed mold and moving mold. This detachable method often uses screws for locking and disassembly. When the operator installs the fixed mold (or moving mold), first, the first threaded holes on the fixed mold (or moving mold) need to be aligned with the first threaded holes on the fixed mold mounting plate (or moving mold mounting plate). When the fixed mold (or moving mold) is small and light in weight, the installation difficulty for the operator is relatively low. When the fixed mold (or moving mold) is large and heavy, the operator not only has to hold the fixed mold (or moving mold) but also align the first threaded holes, and the installation difficulty is very high; 3) When replacing the fixed mold and the moving mold, it is often necessary to replace the cooling mechanism together, which not only causes waste of materials but also greatly increases the cost. Therefore, there is an urgent need for a high-adaptability injection molding machine that is convenient for replacing the fixed mold and the moving mold. Summary of the Invention

[0004] (I) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide an injection molding machine with high adaptability, which solves the problems existing in the prior art. This injection molding machine is not only convenient for installing fixed molds and moving molds of multiple sizes with high adaptability but also saves resources and costs to the greatest extent.

[0006] (II) Technical Solutions

[0007] To achieve the above object, the present invention provides the following technical solution: A high-adaptability injection molding machine, including a support base, an injection mechanism and a mold clamping mechanism are connected to the support base. The mold clamping mechanism includes a first support plate fixed on the support base, a fixed mold mounting plate is fixed on the first support plate, a fixed mold is detachably connected to the fixed mold mounting plate, the fixed mold is connected to a movable mold in an openable and closable manner, a mold cavity is formed after the movable mold and the fixed mold are clamped, the movable mold is detachably connected to a movable mold mounting plate, an opening and closing driving mechanism is provided on the movable mold mounting plate, and a plurality of T-shaped grooves and first threaded holes are provided on both the movable mold mounting plate and the fixed mold mounting plate.

[0008] Preferably, the opening and closing driving mechanism includes a second support plate fixed on the support base, a first oil cylinder is fixedly penetrated through the second support plate, a first moving plate is fixed at the end of the piston rod of the first oil cylinder, the first moving plate is connected to a second moving plate through a plurality of first connecting rods, and the second moving plate is connected to the movable mold mounting plate through a plurality of second connecting rods.

[0009] Preferably, a third support plate is provided between the first moving plate and the second moving plate, the third support plate is fixed on the support base, and the first connecting rod penetrates through the third support plate. A stop block is fixed on the third support plate, a connecting shaft opposite to the stop block is penetrated through the second moving plate, a movable block is fixed at the right end of the connecting shaft, a thimble is fixed on the movable block, the thimble penetrates through a spring, the left end of the spring is fixed on the movable block, and its right end is fixed on the movable mold mounting plate. A first channel and a second channel for the thimble to shuttle are respectively provided on the movable mold mounting plate and the movable mold, and the right end of the second channel is communicated with the mold cavity.

[0010] Preferably, a first cavity is opened at the central position of the movable mold mounting plate, a second cavity communicated with the first cavity is opened on the movable mold, a cooling mechanism is slidably connected in the first cavity and the second cavity, a first rack is fixed on the left side of the cooling mechanism, the first rack meshes with a gear, the gear is rotatably connected to a connecting plate, the connecting plate is fixed on the second connecting rod, and a second rack is fixed on the movable block.

[0011] Preferably, the cooling mechanism includes a cooling block, a cooling circulation pipe is provided on the cooling block, the cooling circulation pipe includes a water inlet section, a bent and circuitous section and a water outlet section, the water inlet section and the water outlet section are both arranged at the left side near the middle position of the cooling block, and the bent and circuitous section is arranged inside the cooling circulation pipe.

[0012] Preferably, two sets of symmetrical T-shaped grooves are provided on each side of the fixed mold mounting plate or the movable mold mounting plate, and the two sets of T-shaped grooves are respectively an inner group and an outer group, wherein the inner group is arranged at the middle position near this side.

[0013] Preferably, the first threaded holes are arranged at the middle position near the fixed mold mounting plate or the movable mold mounting plate.

[0014] Preferably, the injection mechanism includes a motor slidably connected to the support base. A screw rod is connected to the output shaft of the motor. An extrusion head is fixed to the left end of the screw rod. The screw rod is disposed within a barrel. A heating element is fixed to the outer wall of the barrel. A feed hopper is communicated near the right end of the barrel. The left end of the barrel is fixed to the first support plate, and an injection hole is formed at the left end of the barrel. Injection passages communicating with the injection hole are formed in the fixed mold mounting plate and the fixed mold. The left end of the injection passage is communicated with a mold cavity.

[0015] Preferably, the motor is fixed to a housing. The housing is slidably connected to the support base. A second oil cylinder is fixed to the housing. The end of the piston rod of the second oil cylinder is fixed to the first support plate.

[0016] (III) Advantageous Effects

[0017] 1. In the present invention, through the provision of the T-shaped grooves, during the installation process of the moving mold or the fixed mold, the moving mold or the fixed mold is well-positioned, so that the second threaded holes on the moving mold or the fixed mold are aligned with the first threaded holes on the moving mold mounting plate or the fixed mold mounting plate. This greatly facilitates the alignment of the first threaded hole and the second threaded hole, eliminating the need for additional alignment by the operator and ensuring the accuracy of the alignment of the first threaded hole and the second threaded hole. Additionally, through the provision of the T-shaped grooves, after the T-shaped inserts are inserted into the T-shaped grooves, there is no need for the operator to hold the moving mold or the fixed mold anymore. The operator only needs to directly install the screws, which is very convenient. This can adapt to moving molds and fixed molds of different sizes and different masses, greatly improving the adaptability of the injection molding machine.

[0018] 2. In the present invention, through the provision of structures such as the cooling mechanism, the first cavity, the second cavity, the first rack, the gear, the second rack, etc., the reuse of the cooling mechanism is realized without affecting the installation of the moving mold, greatly saving resources. Among them, the cooling mechanism slides within the first channel and the second channel without the need for additional driving power. Instead, like the ejector pin, it utilizes the retraction and ejection of the block on the moving block during the mold closing or mold opening process of the moving mold and the fixed mold to provide the sliding power, greatly saving energy.

[0019] 3. In the present invention, multiple groups of T-shaped grooves are provided on the fixed mold mounting plate or the moving mold mounting plate, which is not limited, has more choices, greater flexibility, and wider adaptability. The first threaded hole is provided at a position close to the middle of the fixed mold mounting plate or the moving mold mounting plate, which can adapt to the fixation of moving molds or fixed molds of different sizes, and there will be no situation where a smaller moving mold or fixed mold cannot be fixed because the position of the first threaded hole is far from the center of the moving mold mounting plate or the fixed mold mounting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is the overall schematic diagram of the present invention.

[0021] Figure 2Schematic diagram of the injection mechanism, mold clamping mechanism and part of the support base of the present invention.

[0022] Figure 3 Schematic diagram of the moving mold mounting plate of the present invention.

[0023] Figure 4 Schematic diagram of the injection mechanism, mold clamping mechanism and part of the support base of the present invention.

[0024] Figure 5 Schematic diagram of the cooling mechanism of the present invention.

[0025] Figure 6 Schematic diagram of the cooling circulation pipe of the present invention.

[0026] Figure 7 Schematic diagram of the moving mold mounting plate of the present invention.

[0027] Figure 8 Schematic diagram of the mold clamping mechanism and part of the support base of the present invention.

[0028] Figure 9 Schematic diagram of the injection mechanism of the present invention.

[0029] Figure 10 Schematic diagram of the overall of the present invention.

[0030] Figure 11 Schematic diagram showing that the right end face of the ejector pin, the right end face of the moving mold mounting plate and the right end face of the cooling mechanism of the present invention are aligned vertically.

[0031] Figure 12 Schematic diagram of the positions of the ejector pin, the moving mold mounting plate and the cooling mechanism when the finished product in the mold cavity of the present invention is ejected.

[0032] Figure 13 Schematic diagram of part of the mold clamping mechanism of the present invention.

[0033] In the figure: 1 - support base, 2 - injection mechanism, 3 - mold clamping mechanism, 4 - first support plate, 5 - fixed mold mounting plate, 6 - fixed mold, 7 - moving mold, 8 - mold cavity, 9 - moving mold mounting plate, 10 - opening and closing drive mechanism, 11 - T-shaped groove, 12 - first threaded hole, 13 - second support plate, 14 - first oil cylinder, 15 - first moving plate, 16 - first connecting rod, 17 - second moving plate, 18 - second connecting rod, 19 - third support plate, 20 - stop block, 21 - connecting shaft, 22 - movable block, 23 - ejector pin, 24 - spring, 25 - first channel, 26 - second channel, 27 - first cavity, 28 - second cavity, 29 - cooling mechanism, 30 - first rack, 31 - gear, 32 - connecting plate, 33 - cooling block, 34 - cooling circulation pipe, 35 - water inlet section, 36 - bending and winding section, 37 - water outlet section, 38 - inner group, 39 - outer group, 40 - motor, 41 - screw, 42 - extrusion head, 43 - barrel, 44 - heating element, 45 - feed hopper, 46 - injection hole, 47 - injection passage, 48 - housing, 49 - second oil cylinder, 50 - second rack. Detailed implementation manner

[0034] The following will combine the accompanying drawings in the embodiments of the present invention Figures 1-13 The technical solutions in the embodiments of the present invention will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0035] The present invention provides a technical solution: a high - adaptability injection molding machine, including a support base 1. An injection mechanism 2 and a mold - clamping mechanism 3 are connected to the support base 1. The mold - clamping mechanism 3 includes a first support plate 4 fixed on the support base 1. A fixed - mold mounting plate 5 is fixed on the first support plate 4. A fixed mold 6 is detachably connected to the fixed - mold mounting plate 5. The fixed mold 6 is connected to a movable mold 7 in an open - and - close manner. After the movable mold 7 and the fixed mold 6 are clamped, a mold cavity 8 is formed. The movable mold 7 is detachably connected to a movable - mold mounting plate 9. An opening - and - closing driving mechanism 10 is provided on the movable - mold mounting plate 9. A plurality of T - shaped grooves 11 and first threaded holes 12 are provided on both the movable - mold mounting plate 9 and the fixed - mold mounting plate 5. During operation, first, the required movable mold 7 is installed on the movable - mold mounting plate 9. A T - shaped insert block matching the T - shaped groove 11 is provided on the movable mold 7, and a second threaded hole matching the first threaded hole 12 is also provided on the movable mold 7. During installation, only need to insert the T - shaped insert block into the T - shaped groove 11 until the inner end of the T - shaped insert block abuts against the inner end of the T - shaped groove 11 and cannot move inward any further. At this time, the second threaded hole on the movable mold 7 is exactly aligned with the first threaded hole 12. Then, it only needs to be fixed with screws. The fixed mold 6 is also installed on the fixed - mold mounting plate 5 by the same method. After that, the opening - and - closing driving mechanism 10 is started to push the movable - mold mounting plate 9 towards the fixed - mold mounting plate 5 until the movable mold 7 and the fixed mold 6 reach the mold - clamping position. Then, the injection mechanism 2 injects the molten plastic raw material into the mold cavity 8. After the plastic raw material in the mold cavity 8 is fully cooled and formed, the opening - and - closing driving mechanism 10 is started to separate the movable mold 7 from the fixed mold 6. Then, the finished product in the mold cavity 8 is taken out for the next round of injection molding. Just repeat this process until the required amount of finished products is completed. Through the setting of the T - shaped groove 11 in the present invention, during the installation process of the movable mold 7 or the fixed mold 6, the movable mold 7 or the fixed mold 6 is well - limited, so that the second threaded hole on the movable mold 7 or the fixed mold 6 is aligned with the first threaded hole 12 on the movable - mold mounting plate 9 or the fixed - mold mounting plate 5. This greatly facilitates the alignment of the first threaded hole 12 and the second threaded hole, without the need for operators to align them additionally, and also ensures the alignment accuracy of the first threaded hole 12 and the second threaded hole. In addition, through the setting of the T - shaped groove 11, after the T - shaped insert block is inserted into the T - shaped groove 11, there is no need for operators to hold the movable mold 7 or the fixed mold 6 anymore. Operators only need to directly install the screws, which is very convenient. This can adapt to movable molds 7 and fixed molds 6 of different sizes and different masses, greatly improving the adaptability of the injection molding machine.

[0036] The opening and closing drive mechanism 10 includes a second support plate 13 fixed to the support base 1. A first oil cylinder 14 is fixedly penetrated through the second support plate 13. The end of the piston rod of the first oil cylinder 14 is fixed with a first moving plate 15. The first moving plate 15 is connected with a second moving plate 17 through a plurality of first connecting rods 16. The second moving plate 17 is connected with a moving mold mounting plate 9 through a plurality of second connecting rods 18. This is the specific structure of the opening and closing drive mechanism 10. When it is necessary to close the moving mold 7 and the fixed mold 6, the first oil cylinder 14 is started, and its piston rod extends, so that the first moving plate 15 moves in a direction away from the first oil cylinder 14, and then drives the second moving plate 17 to move in a direction away from the first oil cylinder 14, and then drives the moving mold mounting plate 9 and the moving mold 7 fixed thereon to move in a direction away from the first oil cylinder 14, and finally the moving mold 7 and the fixed mold 6 are closed. When it is necessary to separate the moving mold 7 and the fixed mold 6, the piston rod of the first oil cylinder 14 only needs to move in the reverse direction. The second connecting rod 18 is fixedly connected with the moving mold mounting plate 9. The second connecting rod 18 penetrates through the fixed mold mounting plate 5 and the first support plate 4 and is movably connected with the fixed mold mounting plate 5 and the first support plate 4. This setting plays a good guiding role, enabling the moving mold 7 and the fixed mold 6 to be accurately closed. Four second connecting rods 18 are provided, which are respectively connected to four pairs of opposite corners of the second moving plate 17 and the moving mold mounting plate 9. This not only greatly improves the stability of mold closing and mold opening, but also makes the reserved installation positions on the moving mold mounting plate 9 and the fixed mold mounting plate 5 as large as possible, so that the moving mold mounting plate 9 and the fixed mold mounting plate 5 can be adapted to a wider range of sizes of the moving mold 7 and the fixed mold 6. Four first connecting rods 16 are provided, which are respectively connected to four pairs of opposite corners of the first moving plate 15 and the second moving plate 17.

[0037] A third support plate 19 is provided between the first moving plate 15 and the second moving plate 17. The third support plate 19 is fixed on the support base 1, and the first connecting rod 16 passes through the third support plate 19. A stop block 20 is fixed on the third support plate 19. A connecting shaft 21 opposite to the stop block 20 is penetrated through the second moving plate 17. A movable block 22 is fixed to the right end of the connecting shaft 21. A thimble 23 is fixed to the movable block 22. The thimble 23 penetrates through a spring 24. The left end of the spring 24 is fixed to the movable block 22, and its right end is fixed to the moving die mounting plate 9. A first channel 25 and a second channel 26 through which the thimble 23 shuttles are respectively provided on the moving die mounting plate 9 and the moving die 7. The right end of the second channel 26 is communicated with the mold cavity 8. Since the finished product formed from the plastic raw material in the mold cavity 8 often adheres to the mold cavity 8, it is often time-consuming and laborious to take out the finished product in the mold cavity 8. Therefore, the setting facilitates the taking out of the finished product in the mold cavity 8. The specific process is as follows: After the plastic raw material in the mold cavity 8 is fully cooled and formed, the opening and closing driving mechanism 10 is started to separate the moving die 7 from the fixed die 6. During the process of the moving die 7 moving away from the fixed die 6, when the connecting shaft 21 touches the stop block 20, the movable block 22 will be pushed to the right, and then the thimble 23 will be pushed to the right, and then the finished product in the mold cavity 8 will be pushed out, greatly improving the efficiency of taking out the finished product in the mold cavity 8. The bottoms of the first moving plate 15 and the second moving plate 17 are slidably connected to the support base 1.

[0038] A first cavity 27 is formed at the central position of the moving die mounting plate 9. A second cavity 28 communicating with the first cavity 27 is formed on the moving die 7. A cooling mechanism 29 is slidably connected in the first cavity 27 and the second cavity 28. A first rack 30 is fixed to the left side of the cooling mechanism 29. The first rack 30 meshes with a gear 31. The gear 31 is rotatably connected to a connecting plate 32. The connecting plate 32 is fixed to the second connecting rod 18. A second rack 50 is fixed to the movable block 22. The cooling mechanism 29 can quickly cool the high-temperature molten plastic raw material in the mold cavity 8, improving the cooling efficiency. However, in the prior art, the cooling mechanism 29 is often not arranged in the moving die mounting plate 9 and the fixed die mounting plate 5 because the above arrangement is far from the mold cavity 8, resulting in poor cooling efficiency and effect. Therefore, the cooling mechanism 29 is often arranged at a position close to the mold cavity 8 in the moving die 7 or at a position close to the mold cavity 8 in the fixed die 6, or arranged at positions close to the mold cavity 8 in both the moving die 7 and the fixed die 6. Therefore, when replacing the moving die 7 and the fixed die 6, the cooling mechanism 29 arranged therein needs to be replaced together. This not only wastes materials and is not conducive to resource conservation, but also greatly increases the cost of mold replacement. Therefore, through the arrangement of the movable cooling mechanism 29, the reuse of the cooling mechanism 29 is realized. Without affecting the replacement of the moving die 7 and the fixed die 6, resources are greatly saved and the reuse of the cooling mechanism 29 is achieved. A slider is provided at the top of the cooling mechanism 29. Matching chutes are provided on the top surfaces of the first cavity 27 and the second cavity 28 for the slider. After the moving die 7 and the fixed die 6 are clamped, the cooling mechanism 29 abuts against the right side wall of the second cavity 28, that is, close to the mold cavity 8. In this way, after the plastic raw material is injected into the mold cavity 8, the mold cavity 8 and the plastic raw material therein can be quickly and efficiently cooled. The right end of the ejector pin 23 is located at the left end of the first channel 25 when the moving die 7 and the fixed die 6 are in the clamped state. The right end of the second rack 50 approaches the gear 31 but does not contact it. The specific working principle is as follows: When the plastic raw material in the mold cavity 8 is fully cooled and formed, the opening and closing driving mechanism 10 is activated to separate the moving die 7 and the fixed die 6, and then synchronously drive the cooling mechanism 29, the first rack 30 and the gear 31 to move away from the fixed die 6 to the left together. When the connecting shaft 21 touches the stop block 20, the movable block 22 will be pushed to the right, and then the ejector pin 23 and the second rack 50 will be pushed to the right. The ejector pin 23 moves to the right along the first channel 25. During the rightward movement of the second rack 50, it will mesh with the gear 31, pushing the gear 31 to rotate counterclockwise. The counterclockwise rotation of the gear 31 drives the first rack 30 to move to the left, and then drives the cooling mechanism 29 fixed to the first rack 30 to slide to the left. When the right end face of the cooling mechanism 29 slides to be flush with the right end face of the moving die mounting plate 9, the ejector pin 23 just runs to the right until its right end face is flush with the right end face of the moving die mounting plate 9, as shown in Figure 11As shown, that is, the right end faces of the ejector pin 23, the moving die mounting plate 9, and the cooling mechanism 29 are all located on the same vertical plane. Then, the ejector pin 23 is pushed to continue moving rightward into the second channel 26 until it enters the mold cavity 8 to eject the finished product inside. During the process when the ejector pin 23 enters the second channel 26 and ejects the finished product, the cooling mechanism 29 continues to be pulled leftward. When the ejector pin 23 ejects the finished product in the mold cavity 8, the positional relationship among the ejector pin 23, the moving die mounting plate 9, and the cooling mechanism 29 is as Figure 12 shown. Then, the opening and closing drive mechanism 10 moves in the reverse direction, causing the moving die 7 to move towards the fixed die 6. During this process, the ejector pin 23 will retract leftward, and the cooling mechanism 29 will slide rightward until the right end faces of the ejector pin 23, the moving die mounting plate 9, and the cooling mechanism 29 are aligned. At this time, the opening and closing drive mechanism 10 stops operating. At this time, the moving die 7 can be replaced. First, the old moving die 7 is disassembled from the moving die mounting plate 9. At this time, since both the ejector pin 23 and the cooling mechanism 29 are located within the moving die mounting plate 9, it does not affect the insertion of the T-shaped insert block on the new moving die 7 into the T-shaped groove 11. Then, the moving die 7 is fixed to the moving die mounting plate 9 with screws. After that, the fixed die 6 is replaced, and then the opening and closing drive mechanism 10 is started again for mold closing. Through this setting, the present invention realizes the reuse of the cooling mechanism 29 without affecting the installation of the moving die 7, greatly saving resources. Among them, the cooling mechanism 29 slides within the first channel 25 and the second channel 26 without the need to provide additional driving power. Instead, like the ejector pin 23, it utilizes the retraction and ejection of the stopper 20 on the movable block 22 during the mold closing or mold opening process between the moving die 7 and the fixed die 6 to provide the sliding power, greatly saving energy. To ensure that the first rack 30 is not blocked by the movable block 22 and the second moving plate 17 during its leftward movement, a through slot through which the first rack 30 can pass can be opened thereon. Among them, in the mold closed state of the moving die 7 and the fixed die 6, the distance A from the right end face of the ejector pin 23 to the right end face of the moving die mounting plate 9 is slightly greater than the distance B from the right end face of the cooling mechanism 29 to the right end face of the moving die mounting plate 9 because the second rack 50 needs to move rightward a certain distance when contacting the gear 31, and the sum of this distance and the length of B is equal to the length of A. When the right end face of the cooling mechanism 29 is flush with the right end face of the moving die mounting plate 9, the distance between the left end face of the cooling mechanism 29 and the left end face of the moving die mounting plate 9 is greater than the length of the second channel 26, so as to ensure that the ejector pin 23 can eject the finished product in the mold cavity 8 on the premise that the cooling mechanism 29 does not slide out of the first cavity 27.

[0039] The cooling mechanism 29 includes a cooling block 33, on which a cooling circulation pipe 34 is provided. The cooling circulation pipe 34 includes a water inlet section 35, a bent and circuitous section 36, and a water outlet section 37. Both the water inlet section 35 and the water outlet section 37 are arranged at the left side near the middle position of the cooling block 33, and the bent and circuitous section 36 is arranged inside the cooling circulation pipe 34. The water inlet section 35 and the water outlet section 37 are connected to a cooling tank to achieve circulating cooling. The arrangement of the bent and circuitous section 36 can achieve full and comprehensive cooling, enhancing the cooling effect. The water inlet section 35 and the water outlet section 37 are arranged at the left side near the middle position of the cooling block 33, which does not affect the sliding of the cooling block 33 in the first cavity 27 and the second cavity 28, and a margin for the sliding of the cooling block 33 is left in the water inlet section 35 and the water outlet section 37.

[0040] Two sets of symmetrical T-shaped grooves 11 are provided on each side of the fixed mold mounting plate 5 or the movable mold mounting plate 9. The two sets of T-shaped grooves 11 are respectively an inner group 38 and an outer group 39, and the inner group 38 is arranged at the middle position near this side. When installing the movable mold 7 and the fixed mold 6, only one set of T-shaped grooves on one side is selected. Therefore, when producing the movable mold 7 and the fixed mold 6, only one set of T-shaped inserts is selectively produced. When the movable mold 7 or the fixed mold 6 is larger, a set of T-shaped inserts matching one of the outer groups 39 is arranged on the movable mold 7 and the fixed mold 6. When the movable mold 7 or the fixed mold 6 is smaller, a set of T-shaped inserts matching one of the inner groups 38 is arranged on the movable mold 7 and the fixed mold 6. After the T-shaped inserts on the movable mold 7 and the fixed mold 6 are inserted into the T-shaped grooves 11, the center of the movable mold 7 is aligned with the center of the movable mold mounting plate 9, and the center of the fixed mold 6 is aligned with the center of the fixed mold mounting plate 5. The arrangement of multiple sets of T-shaped grooves 11 on the fixed mold mounting plate 5 or the movable mold mounting plate 9 is not limited, providing more choices, greater flexibility, and wider adaptability.

[0041] The first threaded holes 12 are arranged at the middle position near the fixed mold mounting plate 5 or the movable mold mounting plate 9. The first threaded holes 12 on the movable mold mounting plate 9 are arranged around the first cavity 27, and the positions of the first threaded holes 12 on the fixed mold mounting plate 9 are the same as those of the first threaded holes 12 on the movable mold mounting plate 9. This setting can adapt to the fixation of movable molds 7 or fixed molds 6 of different sizes, and there will be no situation where the movable mold 7 or the fixed mold 6 with a smaller size cannot be fixed because the positions of the first threaded holes 12 are far from the center positions of the movable mold mounting plate 9 or the fixed mold mounting plate 5.

[0042] The injection mechanism 2 includes a motor 40 slidably connected to the support base 1. A screw rod 41 is connected to the output shaft of the motor 40. An extrusion head 42 is fixed to the left end of the screw rod 41. The screw rod 41 is arranged inside a barrel 43. A heating body 44 is fixed to the outer wall of the barrel 43. A feed hopper 45 is communicated with the right end of the barrel 43. The left end of the barrel 43 is fixed to the first support plate 4, and an injection hole 46 is formed at the left end of the barrel 43. An injection passage 47 communicated with the injection hole 46 is formed on the fixed mold mounting plate 5 and the fixed mold 6. The left end of the injection passage 47 is communicated with a mold cavity 8. The motor 40 is fixed to a housing 48. The housing 48 is slidably connected to the support base 1. A second oil cylinder 49 is fixed to the housing 48. The end of the piston rod of the second oil cylinder 49 is fixed to the first support plate 4. This is the specific structure of the injection mechanism 2. When it is necessary to heat the granular plastic raw material to a molten plastic raw material and inject it into the mold cavity 8, first add the granular plastic raw material into the feed hopper 45. Then the motor 40 is started to drive the screw rod 41 to rotate, thereby transporting and stirring the granular plastic raw material. At the same time, the granular plastic raw material in the barrel 43 is heated to a molten state by the heating body 44 outside the barrel 43. Then the second oil cylinder 49 is started, and its piston rod contracts, thereby driving the motor 40 to slide leftward, driving the screw rod 41 to move leftward, and driving the extrusion head 42 to quickly extrude and inject the molten plastic raw material in the space between the extrusion head 42 and the left end of the barrel 43 into the mold cavity 8. The molten plastic raw material enters the mold cavity 8 through the injection hole 46 and the injection passage 47 in sequence. Two sets of the second oil cylinders 49 are symmetrically arranged up and down on the housing 48.

[0043] Working principle: During operation, first install the required moving mold 7 onto the moving mold mounting plate 9. There is a T-shaped insert block on the moving mold 7 that matches the T-shaped groove 11, and there is also a second threaded hole on the moving mold 7 that matches the first threaded hole 12. During installation, just insert the T-shaped insert block into the T-shaped groove 11 until the inner end of the T-shaped insert block abuts against the inner end of the T-shaped groove 11 and cannot move inward any further. At this time, the second threaded hole on the moving mold 7 is exactly aligned with the first threaded hole 12, and then it can be fixed with screws. The stationary mold 6 is also installed onto the stationary mold mounting plate 5 in the same way. After that, the opening and closing drive mechanism 10 is activated to push the moving mold mounting plate 9 closer to the stationary mold mounting plate 5 until the moving mold 7 and the stationary mold 6 reach the mold closing position. Then, the injection mechanism 2 injects the molten plastic raw material into the mold cavity 8. After the plastic raw material in the mold cavity 8 is fully cooled and formed, the opening and closing drive mechanism 10 is activated to separate the moving mold 7 from the stationary mold 6. Then, take out the finished product in the mold cavity 8 for the next round of injection molding. This process repeats until the required quantity of finished products is completed. Through the setting of the T-shaped groove 11 in the present invention, during the installation process of the moving mold 7 or the stationary mold 6, the moving mold 7 or the stationary mold 6 is well-positioned, so that the second threaded hole on the moving mold 7 or the stationary mold 6 is aligned with the first threaded hole 12 on the moving mold mounting plate 9 or the stationary mold mounting plate 5. This greatly facilitates the alignment of the first threaded hole 12 and the second threaded hole, without the need for operators to align them additionally, and also ensures the accuracy of the alignment of the first threaded hole 12 and the second threaded hole. In addition, through the setting of the T-shaped groove 11, after the T-shaped insert block is inserted into the T-shaped groove 11, there is no need for operators to hold the moving mold 7 or the stationary mold 6 anymore. Operators only need to directly install the screws, which is very convenient. This can adapt to moving molds 7 and stationary molds 6 of different sizes and different masses, greatly improving the adaptability of the injection molding machine.

[0044] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-adaptability injection molding machine, characterized in that: The invention comprises a support seat (1), the support seat (1) is connected to an injection mechanism (2) and a clamping mechanism (3), the clamping mechanism (3) comprises a first support plate (4) fixed to the support seat (1), a fixed mold mounting plate (5) is fixed to the first support plate (4), a fixed mold (6) is detachably connected to the fixed mold mounting plate (5), the fixed mold (6) is openably connected to a movable mold (7), the movable mold (7) and the fixed mold (6) are combined to form a mold cavity (8), the movable mold (7) is detachably connected to the movable mold mounting plate (9), an opening and closing driving mechanism (10) is provided on the movable mold mounting plate (9), and a plurality of T-slots (11) and a first threaded hole (12) are provided on both the movable mold mounting plate (9) and the fixed mold mounting plate (5).

2. A high adaptability injection molding machine according to claim 1, characterized in that: The opening and closing drive mechanism (10) comprises a second support plate (13) fixed on the support seat (1), a first oil cylinder (14) passing through and fixed on the second support plate (13), a first movable plate (15) being fixed to the end of the piston rod of the first oil cylinder (14), the first movable plate (15) being connected to the second movable plate (17) via a plurality of first connecting rods (16), and the second movable plate (17) being connected to the movable mold mounting plate (9) via a plurality of second connecting rods (18).

3. A high-adaptability injection molding machine according to claim 2, characterized in that: A third support plate (19) is provided between the first movable plate (15) and the second movable plate (17); the third support plate (19) is fixed on the support seat (1), and the first connecting rod (16) passes through the third support plate (19); a stopper (20) is fixed on the third support plate (19); a connecting shaft (21) opposite to the stopper (20) is passed through the second movable plate (17); a movable block (22) is fixed to the right end of the connecting shaft (21); an ejector pin (23) is fixed to the movable block (22); the ejector pin (23) passes through a spring (24); the left end of the spring (24) is fixed to the movable block (22), and the right end of the spring (24) is fixed to the movable block (22); a first channel (25) and a second channel (26) for the ejector pin (23) to pass through are respectively provided on the movable mold mounting plate (9) and the movable mold (7); the right end of the second channel (26) is communicated with the mold cavity (8).

4. A high adaptability injection molding machine according to claim 3, characterized in that: A first cavity (27) is provided at the center of the movable mold mounting plate (9); a second cavity (28) connected to the first cavity (27) is provided on the movable mold (7); a cooling mechanism (29) is slidably connected in the first cavity (27) and the second cavity (28); a first rack (30) is fixed on the left side of the cooling mechanism (29); the first rack (30) is meshed with a gear (31); the gear (31) is rotatably connected to a connecting plate (32); the connecting plate (32) is fixed to the second connecting rod (18); and a second rack (50) is fixed to the movable block (22).

5. A high adaptability injection molding machine according to claim 4, characterized in that: The cooling mechanism (29) comprises a cooling block (33), a cooling circulation pipe (34) is provided on the cooling block (33), the cooling circulation pipe (34) comprises a water inlet section (35), a curved section (36) and a water outlet section (37), the water inlet section (35) and the water outlet section (37) are both arranged on the left side of the cooling block (33) near the middle position, and the curved section (36) is arranged inside the cooling circulation pipe (34).

6. A high adaptability injection molding machine according to claim 1, characterized in that: Two symmetrical groups of T-slots (11) are provided on each side of the fixed mold mounting plate (5) or the movable mold mounting plate (9), and the two groups of T-slots (11) are respectively an inner group (38) and an outer group (39), wherein the inner group (38) is provided at a middle position close to the side.

7. The high-adaptability injection molding machine according to claim 1, characterized in that: The first threaded hole (12) is arranged at a middle position close to the fixed mold mounting plate (5) or the movable mold mounting plate (9).

8. The high-adaptability injection molding machine according to claim 1, characterized in that: The injection mechanism (2) comprises a motor (40) slidably connected to the support seat (1), a screw (41) being connected to the output shaft of the motor (40), an extrusion head (42) being fixed to the left end of the screw (41), the screw (41) being arranged in a barrel (43), a heating body (44) being fixed to the outer wall of the barrel (43), a feed hopper (45) being connected to the right end of the barrel (43), the left end of the barrel (43) being fixed to the first support plate (4), an injection hole (46) being provided at the left end of the barrel (43), an injection passage (47) being connected to the injection hole (46) being provided on the fixed mold mounting plate (5) and the fixed mold (6), and the left end of the injection passage (47) being connected to the mold cavity (8).

9. The high-adaptability injection molding machine according to claim 7, characterized in that: The motor (39) is fixed on a cover shell (48), the cover shell (48) is slidably connected to the support seat (1), a second oil cylinder (49) is fixed on the cover shell (48), and the end of the piston rod of the second oil cylinder (49) is fixed on the first support plate (4).

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