Injection molding device for plastic pipeline joint

Abstract

The utility model discloses an injection molding device for plastic pipeline joint, which comprises a first base, a second base, a mould system, an injection molding system, a moving system and a control system, the second base is arranged on one side of the first base, the mould system is arranged on one side of the first base, and the injection molding system is arranged on the other side of the first base. The injection molding system is matched with the mold system, the moving system is installed on the second base and used for moving the plastic pipeline, and the control system is used for controlling the mold system, the injection molding system and the moving system. According to the utility model, the automatic production of the plastic pipeline joint is realized, the production efficiency is greatly improved, meanwhile, the stability of the injection molding process and the consistency of the product quality are ensured through the accurate control of the control system, the error caused by manual operation is reduced, and the sealing performance and the reliability of the plastic pipeline joint are improved.

Description

Technical Field

[0001] This utility model relates to the field of injection molding technology, specifically to an injection molding device for plastic pipe joints. Background Technology

[0002] In the manufacturing process of injection molded products, the screw rotates inside the barrel at a certain temperature, drawing the plastic added from the hopper into the barrel and gradually pushing, compacting, venting, and plasticizing it. The molten plastic continuously accumulates between the top of the screw and the nozzle. When the accumulated molten material reaches the injection volume, the screw stops rotating. During injection, the screw transmits hydraulic or mechanical force to the molten material, causing it to be injected into the mold. The plastic material is formed in the cavity of the injection mold, and after cooling and solidification, the molded injection product is obtained.

[0003] Currently, the production of plastic pipe fittings is mostly done manually or semi-automatically, which results in low production efficiency and poor product quality stability. Manual operation is prone to problems such as inaccurate injection volume and joint size deviation, which affect the sealing and reliability of pipe connections.

[0004] Therefore, the applicant proposes an injection molding device for plastic pipe fittings that can improve production efficiency and product quality. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an injection molding device for plastic pipe joints.

[0006] To achieve the above objectives, this utility model adopts the following technical solution:

[0007] An injection molding apparatus for plastic pipe fittings, comprising:

[0008] First base;

[0009] The second base is located on one side of the first base;

[0010] A mold system, wherein the mold system is mounted on one side of a first base;

[0011] An injection molding system is mounted on the other side of the first base, and the injection molding system cooperates with the mold system;

[0012] A mobile system, mounted on a second base, is used to move plastic pipes;

[0013] Control system, used to control the mold system, injection system and movement system;

[0014] The injection molding system includes:

[0015] Injection molding assembly, which cooperates with the mold system;

[0016] A protective box is located on the side of the injection molding assembly away from the mold system, and the protective box is mounted on a first base;

[0017] A pushing component is installed on one side of the inner cavity of the protective box, and one end of the pushing component penetrates through the side wall of the protective box and cooperates with the injection molding component;

[0018] A transmission gear is installed in the middle of the push assembly and is located inside the protective box. The transmission gear is used to drive the injection molding assembly to rotate.

[0019] A connecting component, which is mounted on the pushing component, is used to facilitate the replacement of the transmission gear;

[0020] A drive assembly is installed on one side of the outer wall of the protective box, and the output end of the drive assembly is meshed with a transmission gear to drive the transmission gear to rotate.

[0021] Furthermore, the mold system includes a fixed mold base plate and a movable mold base plate mounted on a first base. A fixed template and a movable template are respectively mounted on opposite sides of the fixed mold base plate and the movable mold base plate. A core-pulling core is slidably provided on one side between the fixed template and the movable template. A first telescopic member is mounted on the first base. The telescopic end of the first telescopic member is connected to the core-pulling core. An opening for a plastic pipe to pass through is opened on the other side between the fixed template and the movable template. A plastic pipe joint forming cavity communicating with the opening is formed between the fixed template, the movable template and the core-pulling core.

[0022] Furthermore, the injection molding assembly includes a barrel, a feed hopper is installed on one side of the top of the barrel, a nozzle that cooperates with the fixed mold base plate is installed at the output end of the barrel, a screw is installed in the inner cavity of the barrel, and the end of the barrel away from the fixed mold base plate is connected to a protective box.

[0023] Furthermore, the pushing assembly includes a piston disposed in the inner cavity of the barrel and connected to one end of the screw, and a second telescopic member installed in the inner cavity of the protective box. A connecting assembly is rotatably mounted on the telescopic end of the second telescopic member. A connecting rod is connected to the side wall of the piston away from the screw. The other end of the connecting rod passes through the barrel and the side wall of the protective box and is connected to the connecting assembly. A transmission gear is mounted on the connecting rod.

[0024] Furthermore, the connecting assembly includes a movable limit block rotatably mounted on the telescopic end of the second telescopic member and a fixed limit block mounted on the connecting rod. The transmission gear is mounted on the connecting rod between the movable limit block and the fixed limit block. A plug rod is mounted on the side of the movable limit block away from the second telescopic member. A slot for inserting the plug rod is opened on the end of the connecting rod away from the piston. A first protrusion is connected to the plug rod. A groove for inserting the first protrusion is opened on the inner side wall of the slot. A second protrusion is connected to the connecting rod between the movable limit block and the fixed limit block. A first threaded hole is opened on the movable limit block. A second threaded hole coaxial with the first threaded hole is opened on the first protrusion. A third threaded hole communicating with the groove is opened on the second protrusion. The third threaded hole is coaxial with the first threaded hole and the second threaded hole.

[0025] Furthermore, the drive assembly includes a gearbox mounted on one side of the outer wall of the protective box and a drive gear disposed in the inner cavity of the protective box. A third motor is installed at the input end of the gearbox, and a drive shaft is connected to the output end of the gearbox. The other end of the drive shaft passes through the side wall of the protective box and is connected to the drive gear. The drive gear meshes with the transmission gear.

[0026] Furthermore, the mobile system includes a first lead screw guide rail module mounted on a second base, a second lead screw guide rail module mounted on the first lead screw guide rail module and perpendicular to the moving direction of the first lead screw guide rail module, and a pipe placement platform mounted on the second lead screw guide rail module.

[0027] Furthermore, the first lead screw guide rail module includes a first guide rail frame mounted on a second base, a first lead screw rotatably mounted inside the first guide rail frame, one end of the first lead screw passing through the first guide rail frame and connected to the output end of the first motor, a first slider threadedly connected to the first lead screw, a second lead screw guide rail module mounted on the first slider, and a first guide rod parallel to the first lead screw also mounted inside the first guide rail frame, the first guide rod passing through the first slider, and the first guide rod slidingly engaging with the first slider.

[0028] Furthermore, the second lead screw guide rail module includes a second guide rail frame mounted on the first slider, a second lead screw rotatably mounted inside the second guide rail frame, one end of the second lead screw passing through the second guide rail frame and connected to the output end of the second motor, a second slider threadedly connected to the second lead screw, a pipe placement platform mounted on the second slider, and a second guide rod parallel to the second lead screw also mounted inside the second guide rail frame, the second guide rod passing through the second slider and slidingly engaging with the second slider.

[0029] Furthermore, the control system includes a first controller and a second controller, wherein the first controller is mounted on a first base and the second controller is mounted on a second base.

[0030] Compared with the prior art, the present invention provides an injection molding device for plastic pipe joints, which has the following advantages:

[0031] 1. This utility model uses a moving system to guide one end of a plastic pipe into an open mold system. After the mold system closes, the injection molding system plasticizes the raw material. When the set injection volume is reached, the injection molding system quickly injects the plasticized molten plastic into the cavity of the mold system to form a plastic pipe joint. After the plastic pipe joint cools, the mold system is opened, and then the moving system removes the formed plastic pipe. This utility model realizes the automated production of plastic pipe joints, greatly improving production efficiency. At the same time, the precise control of the control system ensures the stability of the injection molding process and the consistency of product quality, reduces errors caused by manual operation, and improves the sealing performance and reliability of the plastic pipe joint.

[0032] 2. The injection molding system of this utility model drives the transmission gear to rotate via the drive component, which in turn drives the push component to rotate, thereby synchronously driving the screw of the injection molding component to rotate. This allows the screw to deliver the raw material to the end of the injection molding component near the mold system. When the set injection volume is reached, the push component pushes the screw forward, thereby extruding the plastic melt located at the end of the injection molding component near the mold system. This allows the desired plastic pipe joint to be obtained in the mold system. Since the transmission gear is mounted on the push component via the connecting component, when the teeth of the transmission gear wear, the operator can remove the transmission gear from the push component via the connecting component, allowing for individual replacement of the transmission gear and improving the convenience of transmission gear maintenance. Attached Figure Description

[0033] Figure 1 This is a top view of the structure of this utility model;

[0034] Figure 2 This is a right-side structural schematic diagram of the mold system and injection molding system of this utility model;

[0035] Figure 3 This is a schematic diagram of the right-side cross-sectional structure of the mobile system of this utility model;

[0036] Figure 4 This is a schematic diagram of the right-side cross-sectional structure of the injection molding system of this utility model;

[0037] Figure 5 yes Figure 4 Enlarged structural diagram at point A;

[0038] Figure 6 This is a front view structural schematic diagram of the transmission gear of this utility model.

[0039] Markings in the diagram: 1. First base; 2. Second base; 3. Mold system; 31. Fixed mold base plate; 32. Moving mold base plate; 33. Fixed mold plate; 34. Moving mold plate; 35. Core puller; 36. First telescopic component; 37. Molding cavity for plastic pipe joint; 38. Opening; 4. Injection system; 41. Injection assembly; 411. Barrel; 412. Feed hopper; 413. Nozzle; 414. Screw; 42. Pushing assembly; 421. Second telescopic component; 422. Connecting rod; 423. Piston; 43. Connecting assembly; 431. Moving limit stop; 432. Insert rod; 433. Slot; 434. Fixed limit stop; 435. First protrusion; 436. Groove; 437. Second protrusion; 438. First threaded hole; 4 39. Second threaded hole; 440. Third threaded hole; 44. Drive assembly; 441. Third motor; 442. Gearbox; 443. Drive shaft; 444. Drive gear; 45. Transmission gear; 46. Protective box; 47. Bracket; 5. Moving system; 51. First lead screw guide rail module; 511. First guide rail frame; 512. First lead screw; 513. First motor; 514. First slider; 515. First guide rod; 52. Second lead screw guide rail module; 521. Second guide rail frame; 522. Second lead screw; 523. Second motor; 524. Second slider; 525. Second guide rod; 6. Control system; 61. First controller; 62. Second controller; 7. Pipe placement platform; 8. Plastic pipe. Detailed Implementation

[0040] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0041] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0042] It should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0043] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0044] In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0045] This utility model embodiment provides an injection molding device for plastic pipe joints, referring to... Figures 1 to 6 It includes: a first base 1, a second base 2, a mold system 3, an injection molding system 4, a moving system 5, and a control system 6;

[0046] The second base 2 is located on one side of the first base 1, the mold system 3 is installed on one side of the first base 1, the injection system 4 is installed on the other side of the first base 1, the injection system 4 cooperates with the mold system 3, the moving system 5 is installed on the second base 2 and is used to move the plastic pipe 8, and the control system 6 is used to control the mold system 3, the injection system 4 and the moving system 5;

[0047] Specifically, the mold system 3 provides a precise molding space; the injection system 4 plasticizes the raw material, and when the set injection volume is reached, the injection system 4 quickly injects the plasticized molten plastic into the cavity of the mold system 3 to form a plastic pipe joint; the moving system 5 controls the plastic pipe to enter and exit the mold system 3; and the control system 6 ensures the stability and precise control of the entire injection process.

[0048] Reference Figure 4 and Figure 5 The injection molding system 4 includes: an injection molding assembly 41, a protective box 46, a pushing assembly 42, a transmission gear 45, a connecting assembly 43, and a driving assembly 44;

[0049] The injection molding assembly 41 cooperates with the mold system 3. The protective box 46 is located on the side of the injection molding assembly 41 away from the mold system 3. The protective box 46 is mounted on the first base 1. The pushing assembly 42 is mounted on one side of the inner cavity of the protective box 46, and one end of the pushing assembly 42 penetrates through the side wall of the protective box 46 and cooperates with the injection molding assembly 41. The transmission gear 45 is mounted in the middle of the pushing assembly 42 and is located in the inner cavity of the protective box 46. The transmission gear 45 is used to drive the injection molding assembly 41 to rotate. The connecting assembly 43 is mounted on the pushing assembly 42 to facilitate the replacement of the transmission gear 45. The driving assembly 44 is mounted on one side of the outer wall of the protective box 46, and the output end of the driving assembly 44 is meshed with the transmission gear 45 to drive the transmission gear 45 to rotate.

[0050] Specifically, the push assembly 42 and the transmission gear 45 are protected by the protective box 46; when the teeth of the transmission gear 45 are worn, the operator can remove the transmission gear 45 from the push assembly 42 through the connecting assembly 43, so that the transmission gear 45 can be replaced separately, which improves the convenience of maintenance of the transmission gear 45.

[0051] The injection system 4 also includes a bracket 47, which supports the injection component 41.

[0052] Reference Figure 1 and Figure 2 In this embodiment, the mold system 3 includes a fixed mold base plate 31 and a movable mold base plate 32 mounted on a first base 1. A fixed template 33 and a movable template 34 are respectively mounted on opposite sides of the fixed mold base plate 31 and the movable mold base plate 32. A core-pulling core 35 is slidably provided on one side between the fixed template 33 and the movable template 34. A first telescopic member 36 is mounted on the first base 1. The telescopic end of the first telescopic member 36 is connected to the core-pulling core 35. An opening 38 for a plastic pipe 8 to pass through is opened on the other side between the fixed template 33 and the movable template 34. A plastic pipe joint forming cavity 37 communicating with the opening 38 is formed between the fixed template 33, the movable template 34 and the core-pulling core 35.

[0053] Specifically, the mold system 3 can be an injection molding machine. The fixed mold base plate 31 and the fixed template 33 are installed in the fixed part of the injection molding machine; the moving mold base plate 32 and the moving template 34 are installed in the movable part of the injection molding machine; before injection molding, the moving template 34 and the fixed template 33 close the mold to form a closed mold cavity; the first telescopic member 36 is preferably a hydraulic cylinder; the first telescopic member 36 drives the core puller 35 to move, which facilitates the cooperation with the moving template 34 and the fixed template 33 to form a plastic pipe joint molding cavity 37; the diameter of the opening 38 is slightly smaller than the outer diameter of the plastic pipe 8, and when the mold is closed, a seal is formed between the moving template 34, the fixed template 33 and the plastic pipe 8; before the mold is closed, one end of the plastic pipe 8 is first inserted into the opening 38 to facilitate the injection molding of the pipe joint at the end of the plastic pipe 8 after the mold is closed.

[0054] Reference Figure 4 In this embodiment, the injection molding assembly 41 includes a barrel 411, a feed hopper 412 is installed on one side of the top of the barrel 411, a nozzle 413 that cooperates with the fixed mold base plate 31 is installed at the output end of the barrel 411, a screw 414 is installed in the inner cavity of the barrel 411, and the end of the barrel 411 away from the fixed mold base plate 31 is connected to the protective box 46.

[0055] Specifically, the barrel 411 is mounted on the bracket 47; the raw material can be introduced into the barrel 411 through the feed hopper 412; the fixed mold base plate 31 is provided with an injection port, which passes through the fixed mold plate 33 and communicates with the mold cavity; the nozzle 413 can inject the plastic melt into the mold cavity through the injection port; the feed hopper 412 is installed at the top of the barrel 411 away from the nozzle 413; a space for storing plastic melt is left between the end of the screw 414 away from the feed hopper 412 and the nozzle 413; a heater (not shown) is installed on the surface of the barrel 411 for heating the raw material; the raw material is conveyed to the front end of the barrel 411 through the screw 414.

[0056] Reference Figure 4 In this embodiment, the pushing component 42 includes a piston 423 disposed in the inner cavity of the material cylinder 411 and connected to one end of the screw 414, and a second telescopic member 421 installed in the inner cavity of the protective box 46. A connecting component 43 is rotatably mounted on the telescopic end of the second telescopic member 421. A connecting rod 422 is connected to the side wall of the piston 423 away from the screw 414. The other end of the connecting rod 422 passes through the side wall of the material cylinder 411 and the protective box 46 and is connected to the connecting component 43. A transmission gear 45 is installed on the connecting rod 422.

[0057] Specifically, by setting the piston 423, the screw 414 and the connecting rod 422 can be installed, and one end of the barrel 411 can be sealed, thereby preventing the raw material from flowing to the connecting rod 422 side; the connecting rod 422 is movably connected to the barrel 411 and the protective box 46 through a shaft seal (not shown in the figure). By setting the shaft seal, the raw material leakage in the barrel 411 can be prevented; the second telescopic member 421 is preferably a hydraulic cylinder; by pushing the connecting rod 422 to move through the second telescopic member 421, the piston 423 can be moved, so as to adjust the position of the screw 414 and facilitate the front end of the screw 414 to expel the raw material from the nozzle 413.

[0058] Reference Figure 4 and Figure 5 In this embodiment, the connecting assembly 43 includes a movable limit block 431 rotatably mounted on the telescopic end of the second telescopic member 421 and a fixed limit block 434 mounted on the connecting rod 422. The transmission gear 45 is mounted on the connecting rod 422 between the movable limit block 431 and the fixed limit block 434. A insertion rod 432 is mounted on the side of the movable limit block 431 away from the second telescopic member 421. A slot 433 for inserting the insertion rod 432 is provided on the end of the connecting rod 422 away from the piston 423. A first protrusion 435 is connected to the insertion rod 432. The inner wall of the slot 433 is provided with a groove 436 for the insertion of the first protrusion 435. A second protrusion 437 is connected to the connecting rod 422 between the moving limit block 431 and the fixed limit block 434. The moving limit block 431 is provided with a first threaded hole 438. The first protrusion 435 is provided with a second threaded hole 439 coaxial with the first threaded hole 438. The second protrusion 437 is provided with a third threaded hole 440 communicating with the groove 436. The third threaded hole 440 is coaxial with the first threaded hole 438 and the second threaded hole 439.

[0059] Specifically, the shape of the movable limit stop 431 near the fixed limit stop 434 matches the shape of the connecting rod 422 and the second protrusion 437; the shape of the shaft hole in the middle of the transmission gear 45 also matches the shape of the connecting rod 422 and the second protrusion 437, so that when the transmission gear 45 rotates, it can drive the connecting rod 422 to rotate; the insert rod 432 and the first protrusion 435 can be inserted into the slot 433 and the groove 436, so that when the connecting rod 422 rotates, it can drive the insert rod 432 to rotate, thereby driving the movable limit stop 431 to rotate; a first threaded hole 438 is provided on the side of the movable limit stop 431 near the fixed limit stop 434 corresponding to the position of the second protrusion 437; the second threaded hole 439 extends into the insert rod 432; the insert rod 432 is inserted into the slot 433, and the movable limit is achieved. When the stop block 431 engages with the connecting rod 422, the first threaded hole 438, the second threaded hole 439, and the third threaded hole 440 are coaxial. The inserted bolt connects the moving limit stop block 431, the connecting rod 422, and the insert rod 432 together, allowing them to rotate synchronously. The length of the connecting rod 422 between the fixed limit stop block 434 and the moving limit stop block 431 is the same as the axial length of the transmission gear 45. The fixed limit stop block 434 and the moving limit stop block 431 limit the transmission gear 45 mounted on the connecting rod 422, preventing the transmission gear 45 from moving left or right on the connecting rod 422. The insert rod 432 is moved out and away from the slot 433 by the second telescopic member 421, allowing the operator to disassemble and assemble the transmission gear 45, improving the convenience of maintenance of the transmission gear.

[0060] Reference Figure 4 In this embodiment, the drive assembly 44 includes a gearbox 442 installed on one side of the outer wall of the protective box 46 and a drive gear 444 disposed in the inner cavity of the protective box 46. A third motor 441 is installed at the input end of the gearbox 442, and a drive shaft 443 is connected to the output end of the gearbox 442. The other end of the drive shaft 443 passes through the side wall of the protective box 46 and is connected to the drive gear 444. The drive gear 444 meshes with the transmission gear 45.

[0061] Specifically, the drive shaft 443 is connected to the side wall of the protective box 46 via a bearing (not shown in the figure); by starting the third motor 441, the drive shaft 443 is driven to rotate via the gearbox 442, and the drive shaft 443 synchronously drives the drive gear 444 to rotate, thereby causing the drive gear 444 to drive the transmission gear 45 to rotate, the transmission gear 45 to drive the connecting rod 422 to rotate, and the connecting rod 422 to drive the screw 414 to rotate.

[0062] Reference Figure 1 and Figure 3In this embodiment, the moving system 5 includes a first lead screw guide rail module 51 mounted on the second base 2, a second lead screw guide rail module 52 mounted on the first lead screw guide rail module 51 and perpendicular to the moving direction of the first lead screw guide rail module 51, and a pipe placement platform 7 mounted on the second lead screw guide rail module 52.

[0063] Specifically, the second lead screw guide module 52 is positioned so that the second base 2 faces the first base 1, meaning that the direction of movement of the second lead screw guide module 52 is parallel to the direction of movement of the second base 2 towards the first base 1; the pipe placement platform 7 is U-shaped, and an arc groove is provided on the top surface of the pipe placement platform 7 to facilitate the placement of the plastic pipe 8; the direction in which the plastic pipe 8 is placed on the pipe placement platform 7 is parallel to the direction of movement of the second lead screw guide module 52.

[0064] Reference Figure 1 and Figure 3 In this embodiment, the first lead screw guide module 51 includes a first guide frame 511 mounted on the second base 2. A first lead screw 512 is rotatably mounted inside the first guide frame 511. One end of the first lead screw 512 passes through the first guide frame 511 and is connected to the output end of the first motor 513. A first slider 514 is threadedly connected to the first lead screw 512. A second lead screw guide module 52 is mounted on the first slider 514. A first guide rod 515, which is parallel to the first lead screw 512, is also mounted inside the first guide frame 511. The first guide rod 515 passes through the first slider 514, and the first guide rod 515 and the first slider 514 are in sliding engagement.

[0065] Specifically, the first guide rail frame 511 is a sealed frame structure with an internal groove; the first lead screw 512 is rotatably installed in the groove; the top surface of the first slider 514 can be slightly higher than the top surface of the first guide rail frame 511; by setting the first guide rod 515, the stability of the movement of the first slider 514 is improved.

[0066] Start the first motor 513, which drives the first lead screw 512 to rotate, thereby moving the first slider 514 and then moving the second lead screw guide module 52.

[0067] Reference Figure 1 and Figure 3In this embodiment, the second lead screw guide module 52 includes a second guide frame 521 mounted on the first slider 514. A second lead screw 522 is rotatably mounted inside the second guide frame 521. One end of the second lead screw 522 passes through the second guide frame 521 and is connected to the output end of the second motor 523. A second slider 524 is threaded onto the second lead screw 522. A pipe placement platform 7 is mounted on the second slider 524. A second guide rod 525, which is parallel to the second lead screw 522, is also mounted inside the second guide frame 521. The second guide rod 525 passes through the second slider 524, and the second guide rod 525 and the second slider 524 are in sliding engagement.

[0068] Specifically, the second lead screw guide module 52 has the same structure as the first lead screw guide module 51; the second lead screw guide module 52 is also a bottom-sealed frame structure with an internal groove; the second lead screw 522 is rotatably installed in the groove; the top surface of the second slider 524 can be slightly higher than the top surface of the second guide frame 521; by setting the second guide rod 525, the stability of the movement of the second slider 524 is improved.

[0069] Start the second motor 523, which drives the second lead screw 522 to rotate, thereby moving the second slider 524, and in turn moving the pipe placement platform 7.

[0070] Reference Figure 1 In this embodiment, the control system 6 includes a first controller 61 and a second controller 62. The first controller 61 is mounted on a first base 1, and the second controller 62 is mounted on a second base 2.

[0071] Specifically, the first controller 61 controls the mold system 3 and the injection system 4; the second controller 62 controls the moving system 5; the first controller 61 controls the mold opening and closing, the first telescopic component 36, the third motor 441, the gearbox 442 and the second telescopic component 421; and the second controller 62 controls the first motor 513 and the second motor 523.

[0072] The sensor collects parameters such as temperature and pressure of the injection molding system 4 and information such as the opening and closing positions of the mold system 3 in real time, and transmits this data to the first controller 61. The first controller 61 precisely controls the rotation speed and temperature of the screw 414 of the injection molding system 4 and the opening and closing actions of the mold system 3 according to preset parameters.

[0073] In this embodiment, the mold opening and closing action of the mold system 3, the first telescopic component 36, the third motor 441, the gearbox 442, the second telescopic component 421, the first motor 513 and the second motor 523 are all existing technologies and will not be described in detail here.

[0074] Working principle: In use, the plastic pipe 8 is first placed on the pipe placement platform 7. The first motor 513 and the second motor 523 drive one end of the plastic pipe 8 into the mold system 3. Then, the first telescopic component 36 moves the core-pulling core 35, and the fixed mold plate 33 and the moving mold plate 34 close. The third motor 441 is started, which drives the drive shaft 443 to rotate via the gearbox 442. The drive shaft 443 synchronously drives the drive gear 444 to rotate, which in turn drives the transmission gear 45 to rotate. The transmission gear 45 drives the connecting rod 422 to rotate, and the connecting rod 422 drives the screw 414 to rotate, causing the screw 414 to transport the raw material to the front end of the barrel 411. When the set injection volume is reached, the second telescopic component... The component 421 pushes the connecting rod 422, which in turn pushes the piston 423, which in turn pushes the screw 414 forward, thereby extruding the plastic melt located at the front end of the barrel 411, so that the required plastic pipe joint can be obtained in the plastic pipe joint molding cavity 37. After the plastic pipe joint cools down, the fixed mold plate 33 and the moving mold plate 34 are opened, and then the molded plastic pipe is moved out by the first motor 513 and the second motor 523. This utility model realizes the automated production of plastic pipe joints, which greatly improves production efficiency. At the same time, the precise control of the control system 6 ensures the stability of the injection molding process and the consistency of product quality, reduces the error caused by manual operation, and improves the sealing performance and reliability of plastic pipe joints.

[0075] When the teeth of the transmission gear 45 wear out, the bolts are unscrewed, and then the second telescopic member 421 retracts, causing the insertion rod 432 to move out and away from the slot 433, allowing the operator to disassemble and assemble the transmission gear 45, thus improving the convenience of maintenance of the transmission gear.

[0076] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0077] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. An injection molding apparatus for a plastic pipe joint, characterized in that, include: First base (1); The second base (2) is located on one side of the first base (1); A mold system (3) is mounted on one side of a first base (1); Injection system (4), which is mounted on the other side of the first base (1), and cooperates with mold system (3); A moving system (5), which is mounted on a second base (2), is used to move the plastic pipe (8); The control system (6) is used to control the mold system (3), the injection system (4) and the moving system (5); The injection molding system (4) includes: Injection molding assembly (41), which cooperates with mold system (3); A protective box (46) is located on the side of the injection molding assembly (41) away from the mold system (3), and the protective box (46) is mounted on the first base (1); A pushing component (42) is installed on one side of the inner cavity of the protective box (46), and one end of the pushing component (42) penetrates the side wall of the protective box (46) and cooperates with the injection molding component (41); A transmission gear (45) is installed in the middle of the push assembly (42) and is located in the inner cavity of the protective box (46). The transmission gear (45) is used to drive the injection molding assembly (41) to rotate. A connecting component (43) is mounted on the pushing component (42) for facilitating the replacement of the transmission gear (45); A drive assembly (44) is installed on one side of the outer wall of the protective box (46), and the output end of the drive assembly (44) is meshed with the transmission gear (45) to drive the transmission gear (45) to rotate.

2. The injection molding apparatus for plastic pipe joints according to claim 1, characterized in that, The mold system (3) includes a fixed mold base plate (31) and a moving mold base plate (32) mounted on a first base (1). A fixed template (33) and a moving template (34) are respectively mounted on opposite sides of the fixed mold base plate (31) and the moving mold base plate (32). A core-pulling core (35) is slidably provided on one side between the fixed template (33) and the moving template (34). A first telescopic member (36) is mounted on the first base (1). The telescopic end of the first telescopic member (36) is connected to the core-pulling core (35). An opening (38) for a plastic pipe (8) to pass through is opened on the other side between the fixed template (33) and the moving template (34). A plastic pipe joint forming cavity (37) communicating with the opening (38) is formed between the fixed template (33), the moving template (34) and the core-pulling core (35).

3. The injection molding apparatus for plastic pipe joints according to claim 2, characterized in that, The injection molding assembly (41) includes a barrel (411), a feed hopper (412) is installed on one side of the top of the barrel (411), a nozzle (413) that cooperates with the fixed mold base plate (31) is installed at the output end of the barrel (411), a screw (414) is installed in the inner cavity of the barrel (411), and the end of the barrel (411) away from the fixed mold base plate (31) is connected to the protective box (46).

4. The injection molding apparatus for plastic pipe joints according to claim 3, characterized in that, The pushing assembly (42) includes a piston (423) disposed in the inner cavity of the barrel (411) and connected to one end of the screw (414) and a second telescopic member (421) installed in the inner cavity of the protective box (46). A connecting assembly (43) is rotatably mounted on the telescopic end of the second telescopic member (421). A connecting rod (422) is connected to the side wall of the piston (423) away from the screw (414). The other end of the connecting rod (422) passes through the side wall of the barrel (411) and the protective box (46) and is connected to the connecting assembly (43). A transmission gear (45) is installed on the connecting rod (422).

5. The injection molding apparatus for plastic pipe joints according to claim 4, characterized in that, The connecting assembly (43) includes a movable limit block (431) rotatably mounted on the telescopic end of the second telescopic member (421) and a fixed limit block (434) mounted on the connecting rod (422). The transmission gear (45) is mounted on the connecting rod (422) between the movable limit block (431) and the fixed limit block (434). A plug (432) is mounted on the side of the movable limit block (431) away from the second telescopic member (421). A slot (433) for inserting the plug (432) is provided on the end of the connecting rod (422) away from the piston (423). A first protrusion (435) is connected to the plug (432). 433) A groove (436) is provided on the inner side wall for the insertion of the first protrusion (435). A second protrusion (437) is connected to the connecting rod (422) between the moving limit block (431) and the fixed limit block (434). A first threaded hole (438) is provided on the moving limit block (431). A second threaded hole (439) coaxial with the first threaded hole (438) is provided on the first protrusion (435). A third threaded hole (440) communicating with the groove (436) is provided on the second protrusion (437). The third threaded hole (440) is coaxial with the first threaded hole (438) and the second threaded hole (439).

6. The injection molding apparatus for plastic pipe joints according to claim 5, characterized in that, The drive assembly (44) includes a gearbox (442) installed on one side of the outer wall of the protective box (46) and a drive gear (444) disposed in the inner cavity of the protective box (46). A third motor (441) is installed at the input end of the gearbox (442), and a drive shaft (443) is connected to the output end of the gearbox (442). The other end of the drive shaft (443) passes through the side wall of the protective box (46) and is connected to the drive gear (444). The drive gear (444) meshes with the transmission gear (45).

7. The injection molding apparatus for plastic pipe joints according to claim 1, characterized in that, The moving system (5) includes a first lead screw guide module (51) mounted on a second base (2), a second lead screw guide module (52) mounted on the first lead screw guide module (51) and perpendicular to the moving direction of the first lead screw guide module (51), and a pipe placement platform (7) mounted on the second lead screw guide module (52).

8. The injection molding apparatus for plastic pipe joints according to claim 7, characterized in that, The first lead screw guide module (51) includes a first guide frame (511) mounted on the second base (2). A first lead screw (512) is rotatably mounted inside the first guide frame (511). One end of the first lead screw (512) passes through the first guide frame (511) and is connected to the output end of the first motor (513). A first slider (514) is threadedly connected to the first lead screw (512). A second lead screw guide module (52) is mounted on the first slider (514). A first guide rod (515) is also installed inside the first guide frame (511) and is parallel to the first lead screw (512). The first guide rod (515) passes through the first slider (514) and slides with the first slider (514).

9. The injection molding apparatus for plastic pipe joints according to claim 8, characterized in that, The second lead screw guide module (52) includes a second guide frame (521) mounted on the first slider (514). A second lead screw (522) is rotatably mounted inside the second guide frame (521). One end of the second lead screw (522) passes through the second guide frame (521) and is connected to the output end of the second motor (523). A second slider (524) is threaded onto the second lead screw (522). A pipe placement platform (7) is mounted on the second slider (524). A second guide rod (525) is also installed inside the second guide frame (521) and is parallel to the second lead screw (522). The second guide rod (525) passes through the second slider (524) and slides with the second slider (524).

10. The injection molding apparatus for plastic pipe joints according to claim 1, characterized in that, The control system (6) includes a first controller (61) and a second controller (62), wherein the first controller (61) is mounted on a first base (1) and the second controller (62) is mounted on a second base (2).

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