Injection molding machine nozzle alignment structure

Abstract

The utility model belongs to the technical field of injection molding machines, and particularly relates to an injection molding machine nozzle alignment structure which comprises a workbench, an injection mechanism is arranged on the left side of the workbench, and a mold closing mechanism is arranged on the right side of the workbench. The mold closing mechanism comprises a clamping unit and a mold closing unit; the clamping unit comprises a base, a second sliding groove, an air cylinder, a clamping plate, an anti-skid pad, a rack, a second sliding block, a gear and a bearing, the second sliding groove is formed in the upper surface of the base, the second sliding block is slidably connected to the two sides of the interior of the second sliding groove, and the bottom of the clamping plate is fixedly connected to the upper surface of the second sliding block; the non-slip mats are fixedly connected to the surfaces, close to each other, of the clamping plates. According to the injection molding machine nozzle alignment structure, accurate movement of the clamping plate is achieved through meshing connection of the rack and the gear, when the air cylinder drives the second sliding block on the left side to move, the rack can drive the gear to rotate, so that the sliding block on the other side moves synchronously, and high-precision clamping operation is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding machines, in particular to a nozzle alignment structure for an injection molding machine. Background Art

[0002] The injection molding machine nozzle is used to inject the injection plastic into the injection mold through the nozzle. The injection molding machine is also called injection molding machine or injection machine. It is the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastics or thermosetting plastics. It is divided into vertical, horizontal, and all-electric types. The injection molding machine can heat the plastic and apply high pressure to the molten plastic to make it ejected and fill the mold cavity.

[0003] A Chinese patent with publication number CN218429612U discloses a nozzle alignment device for an injection molding machine, comprising a frame, a mold seat is installed on one side of the top of the frame, a moving seat is slidably connected to the other side of the top of the frame, a nozzle is installed on the top of the moving seat, a slide groove is provided at the top and bottom ends of the nozzle, a positioning rod is slidably connected to the slide groove, the positioning rod and the slide groove are elastically connected by a spring, the top and bottom ends of the nozzle are fixedly connected to brackets, the ends of the two brackets are rotatably connected to brackets, the positioning rod is fixedly connected to a rack through a connecting rod, the rack is meshed with a gear, and the gear is fixedly connected to an indicator rod.

[0004] The above-mentioned prior art solutions have the following drawbacks: the device may require different adaptations for different molds and nozzle sizes, which may limit its applicability in different occasions.

[0005] Therefore, we propose an injection molding machine nozzle alignment structure to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a nozzle alignment structure for an injection molding machine to solve the problem of insufficient applicability proposed in the above background technology.

[0007] To achieve the above object, the utility model provides the following technical solution: a nozzle alignment structure for an injection molding machine, comprising a workbench, an injection mechanism is arranged on the left side of the workbench, and a mold clamping mechanism is arranged on the right side of the workbench;

[0008] The mold clamping mechanism comprises a clamping unit and a mold clamping unit;

[0009] The clamping unit includes a base, a second slide groove, a cylinder, a clamping plate, an anti-skid pad, a rack, a second slider, a gear and a bearing, wherein the second slide groove is opened on the upper surface of the base, the second slider is slidably connected to both sides of the second slide groove, the bottom of the clamping plate is fixedly connected to the upper surface of the second slider, the anti-skid pad is fixedly connected to a side of the clamping plate close to each other, one end of the rack is fixedly connected to one side of the second slider, the other end of the rack is meshedly connected to the gear, the bottom of the bearing is fixedly connected to the middle of the second slide groove, the inside of the bearing is clamped with the middle of the gear, and the output end of the cylinder is fixedly connected to the second slider on the left;

[0010] The clamping unit comprises a first fixed plate, a conduit, a second fixed plate, a guide rail, a sliding plate, a fixed mold, a limiting hole 1, a limiting hole 2, a movable mold, a limiting needle 1, a limiting needle 2, an ejector, an electric push rod 1 and an electric push rod 2. The bottom of the first fixed plate is fixedly connected to the right side of the injection mechanism, the conduit is arranged above the first fixed plate, the bottom of the second fixed plate is fixedly connected to the right end of the workbench, the guide rail is fixedly connected to the middle of the first fixed plate and the second fixed plate, the sliding plate is slidably connected to the guide rail, the bottoms of the electric push rods 1 and 2 are fixedly connected to the left side of the second fixed plate, the output ends of the electric push rods 1 and 2 are fixedly connected to the right side of the sliding plate, the movable mold is fixedly connected to the upper left side of the sliding plate, the right ends of the limiting needles 1 and 2 are fixedly connected to the upper and lower sides of the movable mold, the limiting holes 1 and 2 are opened on the upper and lower sides of the fixed mold, the movable mold is clamped in the middle of the clamping plate, the right end of the ejector is fixedly connected to the middle of the left side of the second fixed plate, and the left end of the ejector passes through the sliding plate and the middle of the movable mold.

[0011] Preferably, the injection mechanism includes a first slide, a motor, a screw, an injection molding gun, a limit plate and a first slider, wherein the first slide is provided on the left side of the upper surface of the workbench, the motor is fixedly connected to the upper left end of the first slide, the bottom of the limit plate is fixedly connected to the upper right end of the first slide, the two fixed ends of the screw are movably connected to the two ends inside the first slide, the first slider is threadedly connected to the inside of the screw, the output end of the motor is fixedly connected to the left side of the screw, the bottom of the injection molding gun is fixedly connected to the upper surface of the first slider, and the screw can rotate through the drive of the motor, thereby driving the first slider to slide in the first slide, thereby realizing the horizontal movement of the injection molding gun. The design of the limit plate can prevent the first slider from excessive movement, thereby ensuring the precise positioning of the injection molding gun.

[0012] Preferably, there are two groups of clamping units, which are respectively arranged at the upper and lower positions on the right side of the first fixed plate, and can clamp the fixed mold from both upper and lower directions at the same time, making the clamping more stable.

[0013] Preferably, there are four guide rails, which are respectively arranged around the sides of the first fixed plate and the second fixed plate that are close to each other. The design of the four guide rails makes the sliding plate more stable when moving, and can provide sufficient supporting force to prevent the sliding plate from tilting or shaking during movement.

[0014] Preferably, the second slider and the second slide groove are convex in shape, which increases the contact area between the slider and the slide groove, thereby improving the sliding stability and load-bearing capacity.

[0015] Preferably, the length of the limiting hole is the same as that of the limiting pin, and the length of the limiting hole 1 and the limiting hole 2 is the same as that of the limiting pin 1 and the limiting pin 2. This allows the limiting pin to be accurately inserted into the limiting hole, achieving precise positioning of the movable mold, avoiding mold closing problems caused by inaccurate positioning, and improving product quality and pass rate.

[0016] Preferably, fans are fixedly connected to both sides of the mold clamping mechanism. By fixing the fans on both sides of the mold clamping mechanism, the mold clamping mechanism can be effectively cooled and the cooling can be accelerated.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The nozzle alignment structure of the injection molding machine realizes the precise movement of the clamp through the meshing connection of the rack and the gear. When the cylinder drives the second slider on the left to move, the rack will drive the gear to rotate, so that the slider on the other side moves synchronously, realizing high-precision clamping operation.

[0019] 2. The nozzle alignment structure of the injection molding machine has two sets of clamping units respectively arranged at the upper and lower positions of the first fixed plate, which can clamp the fixed mold from both the upper and lower directions at the same time, further improving the efficiency and stability of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall front structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the overall front structure of the utility model;

[0022] Figure 3 It is a top view of the clamping device of the utility model;

[0023] Figure 4 It is a side sectional view of the clamping device of the utility model;

[0024] Figure 5 This is a front structural diagram of the clamping device of the utility model.

[0025] In the figure: 1 workbench, 201 first slide, 202 motor, 203 screw, 204 injection gun, 205 limit plate, 206 first slider, 3 first fixed plate, 301 guide tube, 4 sliding plate, 5 base, 501 second slide, 502 cylinder, 503 splint, 504 anti-skid pad, 505 rack, 506 second slider, 507 gear, 508 bearing, 6 guide rail, 7 second fixed plate, 801 electric push rod 1, 802 electric push rod 2, 9 fan, 10 fixed mold, 1001 limit hole 1, 1002 limit hole 2, 11 movable mold, 1101 limit needle 1, 1102 limit needle 2, 13 ejector pin. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-Figure 5 , the utility model provides a technical solution: a nozzle alignment structure of an injection molding machine, comprising a workbench 1, an injection mechanism is arranged on the left side of the workbench 1, and a mold clamping mechanism is arranged on the right side of the workbench 1;

[0028] The mold clamping mechanism includes a clamping unit and a mold clamping unit; fans 9 are fixedly connected to both sides of the mold clamping mechanism;

[0029] The clamping unit includes a base 5, a second slide 501, a cylinder 502, a clamping plate 503, an anti-skid pad 504, a rack 505, a second slider 506, a gear 507 and a bearing 508. The base 5 provides stable support for the clamping unit. The second slide 501 is provided on the upper surface of the base 5. The second slider 506 is slidably connected to both sides of the second slide 501, and cooperates with the cylinder 502 to achieve smooth movement and precise clamping of the clamping plate. The second slider 506 and the second slide 501 are convex in shape. The bottom of the clamping plate 503 is fixedly connected to the upper surface of the second slider 506, and the anti-skid pad 504 is fixedly connected to the side of the clamping plate 503 that is close to each other, directly clamping the fixed mold, and protecting the surface of the fixed mold through the anti-skid pad 504 to ensure the stability and safety of the clamping. One end of the rack 505 is fixedly connected to one side of the second slider 506, and the other end of the rack 505 is meshedly connected to the gear 507. The bottom of the bearing 508 is fixedly connected to the middle of the second slide 501, and the inside of the bearing 508 is engaged with the middle of the gear 507. The gear 507 and the rack 505 mechanism are used to achieve synchronous movement of the clamping plate 503, thereby improving the clamping accuracy and efficiency. The output end of the cylinder 502 is fixedly connected to the second slider 506 on the left side, providing power to drive the opening and closing of the clamping plate 503, thereby achieving fast and stable clamping of the fixed mold; there are two groups of clamping units, which are respectively arranged at the upper and lower positions on the right side of the first fixed plate 3.

[0030] The mold clamping unit includes a first fixed plate 3, a guide tube 301, a second fixed plate 7, a guide rail 6, a sliding plate 4, a fixed mold 10, a limit hole 1001, a limit hole 1002, a movable mold 11, a limit needle 1101, a limit needle 1102, a push pin 13, an electric push rod 1 801 and an electric push rod 2 802. The bottom of the first fixed plate 3 is fixedly connected to the right side of the injection mechanism. The first fixed plate 3 and the second fixed plate 7 provide a stable installation base for the mold clamping unit. The guide tube 301 is arranged above the first fixed plate 3, the bottom of the second fixed plate 7 is fixedly connected to the right end of the workbench 1, the guide rail 6 is fixedly connected to the middle of the first fixed plate 3 and the second fixed plate 7, ensuring that the movable mold can move and position smoothly, the sliding plate 4 is slidably connected to the guide rail 6, the bottom of the electric push rod 1 801 and the electric push rod 2 802 are fixedly connected to the left side of the second fixed plate 7, and the output ends of the electric push rod 1 801 and the electric push rod 2 802 are fixedly connected to the right side of the sliding plate 4, providing power for the sliding plate 4 to achieve accurate movement and mold closing of the movable mold. The movable mold 11 is fixedly connected to the upper left side of the sliding plate 4, the right ends of the limit pin 1101 and the limit pin 2 1102 are fixedly connected to the upper and lower sides of the movable mold 11, the limit hole 1001 and the limit hole 2 1002 are opened on the upper and lower sides of the fixed mold 10, and the limit hole is the same length as the limit pin, ensuring the accurate alignment of the movable mold 11 and the fixed mold 10 during the mold closing process, and improving the qualified rate of the product. The movable mold 11 is clamped in the middle of the clamping plate 503, and the right end of the ejector pin 13 is fixedly connected to the middle of the left side of the second fixed plate 7. The left end of the ejector pin 13 passes through the sliding plate 4 and the middle of the movable mold 11, which is used to eject the product from the movable mold 11 during demolding, making it convenient to take out the finished product.

[0031] The injection mechanism includes a first slide 201, a motor 202, a screw 203, an injection gun 204, a limit plate 205 and a first slider 206. The first slide 201 is provided on the left side of the upper surface of the workbench 1, and provides a moving track for the motor 202, the screw 203 and the first slider 206, so as to ensure that the injection gun 204 can move smoothly and accurately along a straight line. The motor 202 is fixedly connected to the upper left end of the first slide 201, provides power for the screw 203, drives the horizontal movement of the first slider 206 and the injection gun 204, and realizes the automation and precise control of the injection process. The bottom of the limit plate 205 is fixedly connected to the upper right end of the first slide 201 to prevent the first slider 206 from excessive movement, ensure that the injection gun 204 works within a predetermined range, and improve the safety and stability of the operation. The two fixed ends of the screw rod 203 are movably connected to the two ends inside the first slide groove 201, and the first slider 206 is threadedly connected to the inside of the screw rod 203, connecting the injection gun 204 and the screw rod 203, realizing the linear movement of the injection gun 204, and converting the rotary motion into the linear motion of the first slider 206, ensuring that the injection gun 204 can accurately reach the specified position. The output end of the motor 202 is fixedly connected to the left side of the screw rod 203, and the bottom of the injection gun 204 is fixedly connected to the upper surface of the first slider 206, which is responsible for injecting the molten plastic into the mold through the conduit 301, and is the core component of the injection molding process.

[0032] Working principle: Check whether all parts of the injection molding machine are intact and ensure that the power supply, air pressure, etc. are normally supplied. Put the plastic raw material to be injected into the hopper of the injection molding machine. The motor 202 drives the screw rod 203 to rotate, and the rotational motion of the screw rod 203 is converted into the linear motion of the first slider 206 through the threaded connection. The first slider 206 drives the injection molding gun 204 to move smoothly along the first slide 201, ensuring that the injection molding gun 204 can accurately reach the designated position. The injection molding gun 204 injects the molten plastic into the mold through the conduit 301 at the predetermined position.

[0033] Start the cylinder 502, which pushes the second slider 506 to move along the second slide groove 501, driving the clamping plate 503 to clamp the fixed mold. At the same time, through the meshing of the gear 507 and the rack 505, the synchronous movement of the clamping plate is achieved to ensure the accuracy and stability of the clamping. The electric push rod 1 801 and the electric push rod 2 802 drive the sliding plate 4 to move along the guide rail 6, thereby driving the movable mold 11 to approach the fixed mold 10 to complete the mold closing action. During the mold closing process, the cooperation between the limit pin 1 1101 and the limit pin 2 1102 and the limit hole 1001 and the limit hole 2 1002 ensures the precise alignment of the movable mold and the fixed mold. After the movable mold 11 and the fixed mold 10 are closed, they are kept for a period of time to allow the plastic to cool and solidify in the mold. After cooling and solidification, the electric push rod 1 801 and the electric push rod 2 802 are controlled to separate the movable mold 11 from the fixed mold 10. The ejector pin 13 ejects the product from the movable mold 11, making it easy to take out the finished product. The fans 9 on both sides of the mold clamping mechanism dissipate heat from the mold clamping mechanism, reduce the heat generated during the working process, and ensure the continuity and efficiency of the injection molding process.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A nozzle alignment structure for an injection molding machine, comprising a workbench (1), characterized in that: An injection mechanism is arranged on the left side of the workbench (1), and a mold clamping mechanism is arranged on the right side of the workbench (1); The mold clamping mechanism comprises a clamping unit and a mold clamping unit; The clamping unit comprises a base (5), a second slide groove (501), a cylinder (502), a clamping plate (503), an anti-slip pad (504), a rack (505), a second slider (506), a gear (507) and a bearing (508), wherein the second slide groove (501) is provided on the upper surface of the base (5), the second slider (506) is slidably connected to both sides of the second slide groove (501), and the bottom of the clamping plate (503) is fixedly connected to the upper surface of the second slider (506). The anti-skid pad (504) is fixedly connected to the side of the clamping plate (503) that is close to each other, one end of the rack (505) is fixedly connected to one side of the second slider (506), the other end of the rack (505) is meshedly connected to the gear (507), the bottom of the bearing (508) is fixedly connected to the middle of the second slide groove (501), the inside of the bearing (508) is clamped with the middle of the gear (507), and the output end of the cylinder (502) is fixedly connected to the second slider (506) on the left side; The clamping unit comprises a first fixed plate (3), a guide tube (301), a second fixed plate (7), a guide rail (6), a sliding plate (4), a fixed mold (10), a limiting hole 1 (1001), a limiting hole 2 (1002), a movable mold (11), a limiting needle 1 (1101), a limiting needle 2 (1102), an ejector pin (13), an electric push rod 1 (801) and an electric push rod 2 (802), wherein the bottom of the first fixed plate (3) is fixedly connected to the right side of the injection mechanism, the guide tube (301) is arranged above the first fixed plate (3), the bottom of the second fixed plate (7) is fixedly connected to the right end of the workbench (1), the guide rail (6) is fixedly connected to the middle of the first fixed plate (3) and the second fixed plate (7), the sliding plate (4) is slidably connected to the guide rail (6), and the The bottom of the electric push rod 1 (801) and the electric push rod 2 (802) are fixedly connected to the left side of the second fixed plate (7); the output ends of the electric push rod 1 (801) and the electric push rod 2 (802) are fixedly connected to the right side of the sliding plate (4); the movable mold (11) is fixedly connected to the upper left side of the sliding plate (4); the right ends of the limit pin 1 (1101) and the limit pin 2 (1102) are fixedly connected to the upper and lower sides of the movable mold (11); the limit hole 1 (1001) and the limit hole 2 (1002) are opened on the upper and lower sides of the fixed mold (10); the movable mold (11) is clamped in the middle of the clamping plate (503); the right end of the ejector pin (13) is fixedly connected to the middle of the left side of the second fixed plate (7); and the left end of the ejector pin (13) passes through the middle of the sliding plate (4) and the movable mold (11).

2. The nozzle alignment structure for an injection molding machine according to claim 1, characterized in that: The injection mechanism comprises a first slide groove (201), a motor (202), a screw rod (203), an injection molding gun (204), a limit plate (205) and a first slider (206); the first slide groove (201) is opened on the left side of the upper surface of the workbench (1); the motor (202) is fixedly connected to the upper left end of the first slide groove (201); the bottom of the limit plate (205) is fixedly connected to the upper right end of the first slide groove (201); the fixed ends of the screw rod (203) are movably connected to the two ends inside the first slide groove (201); the first slider (206) is threadedly connected to the inside of the screw rod (203); the output end of the motor (202) is fixedly connected to the left side of the screw rod (203); and the bottom of the injection molding gun (204) is fixedly connected to the upper surface of the first slider (206).

3. The nozzle alignment structure for an injection molding machine according to claim 1, characterized in that: The clamping units have two groups, which are respectively arranged at upper and lower positions on the right side of the first fixing plate (3).

4. The nozzle alignment structure for an injection molding machine according to claim 1, characterized in that: There are four guide rails (6), which are respectively arranged around the sides of the first fixing plate (3) and the second fixing plate (7) that are close to each other.

5. The nozzle alignment structure for an injection molding machine according to claim 1, characterized in that: The second sliding block (506) and the second sliding groove (501) are convex in shape.

6. The nozzle alignment structure for an injection molding machine according to claim 1, characterized in that: The lengths of the limiting hole 1 (1001) and the limiting hole 2 (1002) are the same as the lengths of the limiting needle 1 (1101) and the limiting needle 2 (1102).

7. The nozzle alignment structure for an injection molding machine according to claim 1, characterized in that: Fans (9) are fixedly connected to both sides of the mold clamping mechanism.

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