Spraying nozzle of cut-off type automobile exterior decoration injection molding part

Abstract

The utility model relates to the technical field of automobile injection molding part processing, in particular to a cut-off type injection nozzle of an automobile exterior decoration injection molding part, which comprises a mounting seat, two fixing rods are fixedly connected to the surface of the mounting seat, an injection assembly is arranged at one end of each fixing rod, and the injection assembly comprises two supporting plates. The two supporting plates are fixedly arranged at one ends of the two fixing rods respectively, protractor rulers are fixedly arranged on the upper surfaces of the supporting plates, connecting grooves are formed in the surfaces of the supporting plates and comprise a first positioning groove and a second positioning groove, the first positioning groove is communicated with the second positioning groove, and an adjusting base is arranged between the two connecting grooves in a sliding fit mode. One end of the adjusting seat is fixedly connected with a fixing pipe, one end of the fixing pipe is fixedly connected with an injection nozzle body, the top end of the adjusting seat is fixedly connected with a supporting rod, and according to the injection nozzle body with the adjustable angle, molten plastic can be injected into a mold cavity from different angles according to the mold design requirement so as to reduce internal stress or avoid surface defects.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile injection molding processing, in particular to a truncated injection nozzle for automobile exterior moldings. Background Art

[0002] Truncated automotive exterior injection molded parts generally refer to automotive exterior decorative or functional components manufactured through the injection molding process. These components include rearview mirrors, headlights, seat handles, air intake grilles, sunroofs, etc. Injection molding is a manufacturing process that uses high pressure to inject molten plastic into a mold and cool it into shape. It is suitable for producing plastic parts with complex shapes and precise dimensions.

[0003] The injection nozzle of truncated automobile exterior injection molding parts usually refers to the device used to inject molten plastic into the mold during the production process of automobile exterior injection molding parts. This injection nozzle is one of the key components of the injection molding machine.

[0004] In modern injection molding processes, the injection nozzle of an injection molding machine is usually set to point vertically downward. However, when the mold design requires that the molten plastic be injected into the mold cavity from a specific angle to reduce internal stress or avoid surface defects, the traditional vertical nozzle cannot achieve precise control of the angle, resulting in uneven internal stress, deformation, and surface defects in the product. Therefore, a truncated injection nozzle for automotive exterior injection molding is proposed to address the above problems. Utility Model Content

[0005] The purpose of the present invention is to provide a truncated injection nozzle for automobile exterior injection molding parts, so as to solve the problem in the above background technology that the traditional vertical injection nozzle cannot achieve precise angle control, resulting in uneven internal stress, deformation and surface defects in the product.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A truncated type injection nozzle for an automobile exterior injection molding part comprises a mounting seat, the surface of the mounting seat is fixedly connected to two fixing rods, one end of the two fixing rods is provided with an injection assembly, the injection assembly comprises two support plates, the two support plates are respectively fixedly arranged at one end of the two fixing rods, a protractor is fixedly provided on the upper surface of the support plate, a connecting groove is opened on the surface of the support plate, the connecting groove comprises a first positioning groove and a second positioning groove, the first positioning groove and the second positioning groove are connected, an adjustment seat is slidably fitted between the two connecting grooves, and one end of the adjustment seat is fixedly connected to A fixed tube, one end of the fixed tube is fixedly connected to the injection nozzle body, the top of the adjusting seat is fixedly connected to a support rod, a support shaft is rotatably connected between the two support rods, the surface of the support shaft is fixedly connected to a first connecting arm, and an adjusting component is fixedly provided on the upper surface of one of the support plates, and the adjusting component includes a folding rod, the middle part of the folding rod is rotatably connected to the connecting shaft, one end of the connecting shaft is fixedly connected to a connecting disk, the surface of the connecting disk is fixedly connected to the second connecting arm, the other end of the connecting shaft is fixedly connected to the adjusting wheel, and one end of the folding rod is fixedly provided with a limit assembly.

[0008] As further optimized content of the present invention, the limit assembly includes a fixed block, a sliding groove is provided in the middle of the fixed block, a slider is slidably connected to the inside of the sliding groove, a return spring is fixedly connected between one end of the inner wall of the sliding groove and the rear end face of the slider, the front end face of the slider is fixedly connected to the limit rod through a connecting rod, one end of the limit rod is fixedly connected to the limit block, and a plurality of limit grooves matching the limit block are provided on the outer side of the adjusting wheel.

[0009] As a further optimization of the present invention, the first positioning groove is opened at the bottom of the support plate, the second positioning groove is opened at the top of the support plate, one end of the first positioning groove and one end of the second positioning groove are located on the same central axis, and the second positioning groove is a quarter-circular arc.

[0010] As a further optimization of the present invention, a square groove for rotational engagement of the first connecting arm is provided on one side of the middle portion of the adjustment seat, and the width of the square groove is greater than the thickness of the first connecting arm.

[0011] As a further optimization of the present invention, two positioning blocks that slide in cooperation with the connecting groove are fixedly connected to both sides of the adjustment seat, the thickness of the positioning blocks is the same as the thickness of the connecting groove, and the distance between two adjacent positioning blocks is the same as the radius of the second positioning groove.

[0012] As a further optimization of the present invention, the angle between the support rod and the adjustment seat is 90°, the support rod is located in the middle of the adjustment seat, and the two support rods correspond to each other on the left and right.

[0013] As a further optimization of the present invention, one end of the first connecting arm is hingedly connected to one end of the second connecting arm, the length of the first connecting arm is greater than the length of the second connecting arm, and both the first connecting arm and the second connecting arm are made of metal material.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] In the utility model, 1. By setting the injection assembly, the cooperation of the first connecting arm and the support shaft is utilized to drive the support rod and the adjustment seat to move. When the positioning blocks on both sides slide on the inner wall of the first positioning groove, the adjustment seat can move horizontally to realize the up and down adjustment of the injection nozzle body, which is convenient for adapting to mold cavities of different heights. When the positioning block on one side is located at the front end of the first positioning groove, the positioning block on the other side will move along the path of the second positioning groove under the pull of the first connecting arm, and the adjustment seat is flipped to realize the angle adjustment of the injection nozzle body. By cooperating with the protractor and the positioning block, the angle of the injection nozzle body can be accurately controlled. The molten plastic can be injected into the mold cavity from different angles according to the requirements of the mold design to reduce internal stress or avoid surface defects. The operation is relatively convenient.

[0016] 2. Through the setting of the adjustment component, the position of the adjustment seat can be flexibly adjusted by utilizing the cooperation of the adjustment wheel and the second connecting arm. By utilizing the cooperation of the reset spring and the slider, the limit block can automatically limit the rotation of the adjustment wheel, so that the nozzle body will not move during the injection process, thereby ensuring the stability of the injection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a side structural diagram of the utility model;

[0019] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model;

[0020] Figure 4 This is a schematic structural diagram of the adjustment seat of the utility model;

[0021] Figure 5 It is a schematic cross-sectional structure diagram of the limit assembly of the utility model.

[0022] In the figure: 1. Mounting seat; 2. Fixing rod; 3. Injection assembly; 31. Support plate; 311. Protractor; 32. First positioning groove; 33. Second positioning groove; 34. Adjusting seat; 341. Fixing tube; 342. Injection nozzle body; 343. Square groove; 344. Positioning block; 35. Support rod; 36. Support shaft; 37. First connecting arm; 4. Adjusting assembly; 41. Folding rod; 42. Connecting plate; 43. Second connecting arm; 44. Adjusting wheel; 45. Limiting assembly; 451. Fixing block; 452. Slide groove; 453. Slider; 454. Return spring; 455. Limiting rod; 456. Limiting block. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0025] See also Figure 1-5 , the utility model provides a technical solution:

[0026] A truncated automobile exterior injection molding nozzle includes a mounting base 1, the surface of the mounting base 1 is fixedly connected to two fixing rods 2, one end of the two fixing rods 2 is provided with an injection assembly 3, the injection assembly 3 includes two support plates 31, the two support plates 31 are respectively fixedly arranged at one end of the two fixing rods 2, the upper surface of the support plate 31 is fixedly provided with a protractor 311, and the angle of the corresponding positioning block 344 is observed by the protractor 311, so as to accurately control the angle of the nozzle body 342, and the surface of the support plate 31 is provided with a connecting groove, which includes a first positioning groove 32 and a second positioning groove 33, and the first positioning groove 32 is connected to the second positioning groove 33. An adjusting seat 34 is slidably fitted between the two connecting grooves, and the angle between the support rod 35 and the adjusting seat 34 is 90 degrees. The support rod 35 is located at the adjusting position. In the middle of the joint seat 34, two support rods 35 correspond to each other on the left and right. One end of the adjusting seat 34 is fixedly connected to the fixed tube 341, and one end of the fixed tube 341 is fixedly connected to the injection nozzle body 342. The top of the adjusting seat 34 is fixedly connected to the support rod 35, and a support shaft 36 is rotatably connected between the two support rods 35. The surface of the support shaft 36 is fixedly connected to the first connecting arm 37. An adjusting component 4 is fixedly provided on the upper surface of one of the support plates 31. The adjusting component 4 includes a folding rod 41, and the middle part of the folding rod 41 is rotatably connected to the connecting shaft. One end of the connecting shaft is fixedly connected to the connecting disk 42, and the surface of the connecting disk 42 is fixedly connected to the second connecting arm 43. The other end of the connecting shaft is fixedly connected to the adjusting wheel 44, and one end of the folding rod 41 is fixedly provided with a limit assembly 45. This arrangement can limit the movement of the adjusting seat 34.

[0027] As a further implementation of this solution, the limiting assembly 45 includes a fixed block 451, a sliding groove 452 is provided in the middle of the fixed block 451, a slider 453 is slidably connected to the inside of the sliding groove 452, a return spring 454 is fixedly connected between one end of the inner wall of the sliding groove 452 and the rear end surface of the slider 453, the front end surface of the slider 453 is fixedly connected to the limiting rod 455 through a connecting rod, and one end of the limiting rod 455 is fixedly connected to the limiting block 456, and a plurality of limiting grooves matching the limiting block 456 are provided on the outer side of the adjusting wheel 44. The limiting block 456 can limit the rotation of the adjusting wheel 44, so that the nozzle body 342 will not rotate during the injection process, thereby ensuring stability during the injection process;

[0028] As a further implementation of this solution, a first positioning groove 32 is provided at the bottom of the support plate 31, and a second positioning groove 33 is provided at the top of the support plate 31. One end of the first positioning groove 32 and one end of the second positioning groove 33 are located on the same central axis. The second positioning groove 33 is in the shape of a quarter arc, and the second positioning groove 33 provides a path for the rotation of the adjustment seat 34.

[0029] As a further implementation of this solution, a square groove 343 is opened on one side of the middle portion of the adjustment seat 34 for the first connecting arm 37 to rotate with. The width of the square groove 343 is greater than the thickness of the first connecting arm 37 and will not hinder the rotation of the first connecting arm 37. One end of the first connecting arm 37 is hingedly connected to one end of the second connecting arm 43. The length of the first connecting arm 37 is greater than the length of the second connecting arm 43. The first connecting arm 37 and the second connecting arm 43 are both made of metal materials. This arrangement occupies less space and is suitable for injection molding machines with limited space.

[0030] As a further optimization of this utility model, two positioning blocks 344 that slide in cooperation with the connecting groove are fixedly connected to both sides of the adjustment seat 34. The thickness of the positioning block 344 is the same as the thickness of the connecting groove, and the distance between two adjacent positioning blocks 344 is the same as the radius of the second positioning groove 33. This arrangement facilitates the movement of the adjustment seat 34.

[0031] Working process: The injection nozzle of the truncated automobile exterior injection molding part is fixed to the bottom of the injection molding machine through the cooperation of the mounting holes on the surface of the mounting seat 1 and the bolt and nut group. The injection hose of the injection molding machine is fixedly connected to the liquid inlet end of the injection nozzle body 342 to transport molten plastic to the injection nozzle body 342. When the adjusting wheel 44 is not in use, it is limited by the limit block 456 at one end of the limit rod 455. The return spring 454 in the contracted state pulls the limit rod 455 through the cooperation of the slider 453 and the connecting rod, so that the limit block 456 is stuck in the corresponding limit groove on the surface of the adjusting wheel 44, restricting the rotation of the adjusting wheel 44. When the adjusting wheel 44 is rotated, the connecting rod is pulled to move the limit rod 455 outward, and the limit block 456 is disengaged from the corresponding limit groove.

[0032] When the adjusting wheel 44 rotates, the connecting plate 42 is driven to rotate through the connecting shaft, and the connecting plate 42 drives the second connecting arm 43 to rotate. The second connecting arm 43 drives the first connecting arm 37 to move. The first connecting arm 37 drives the support rod 35 and the adjusting seat 34 to move through the support shaft 36. When the positioning block 344 slides on the inner wall of the first positioning groove 32, the adjusting seat 34 can move horizontally to achieve up and down adjustment of the nozzle body 342. When the positioning block 344 on one side is located at the front end of the first positioning groove 32, the positioning block 344 on the other side will move along the path of the second positioning groove 33 under the pull of the first connecting arm 37, flipping the adjusting seat 34, and the adjusting seat 34 drives the nozzle body 342 to rotate synchronously through the fixing tube 341 to achieve angle adjustment of the nozzle body 342, and the angle adjustment and height adjustment of the nozzle body 342 cannot be performed at the same time.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A truncated type injection nozzle for automobile exterior molding, comprising a mounting seat (1), characterized in that: Two fixing rods (2) are fixedly connected to the surface of the mounting seat (1), and one end of the two fixing rods (2) is provided with a spraying assembly (3); The injection assembly (3) comprises two support plates (31), the two support plates (31) are respectively fixedly arranged at one end of the two fixed rods (2), a protractor (311) is fixedly provided on the upper surface of the support plate (31), a connection groove is provided on the surface of the support plate (31), the connection groove comprises a first positioning groove (32) and a second positioning groove (33), the first positioning groove (32) and the second positioning groove (33) are connected, an adjustment seat (34) is slidably fitted between the two connection grooves, one end of the adjustment seat (34) is fixedly connected to a fixing pipe (341), one end of the fixing pipe (341) is fixedly connected to the injection nozzle body (342), the top end of the adjustment seat (34) is fixedly connected to a support rod (35), a support shaft (36) is rotatably connected between the two support rods (35), the surface of the support shaft (36) is fixedly connected to a first connecting arm (37), and an adjustment assembly (4) is fixedly provided on the upper surface of one of the support plates (31); The adjustment assembly (4) comprises a folding rod (41), the middle portion of the folding rod (41) is rotatably connected to a connecting shaft, one end of the connecting shaft is fixedly connected to a connecting disk (42), a surface of the connecting disk (42) is fixedly connected to a second connecting arm (43), the other end of the connecting shaft is fixedly connected to an adjusting wheel (44), and one end of the folding rod (41) is fixedly provided with a limit assembly (45).

2. The injection nozzle for a truncated automobile exterior injection molded part according to claim 1, characterized in that: The limiting assembly (45) includes a fixed block (451), a sliding groove (452) is provided in the middle of the fixed block (451), a slider (453) is slidably connected inside the sliding groove (452), a return spring (454) is fixedly connected between one end of the inner wall of the sliding groove (452) and the rear end surface of the slider (453), the front end surface of the slider (453) is fixedly connected to the limiting rod (455) through a connecting rod, one end of the limiting rod (455) is fixedly connected to the limiting block (456), and a plurality of limiting grooves matching the limiting block (456) are provided on the outer side of the adjusting wheel (44).

3. The injection nozzle for a truncated automobile exterior injection molded part according to claim 1, characterized in that: The first positioning groove (32) is provided at the bottom of the support plate (31), and the second positioning groove (33) is provided at the top of the support plate (31). One end of the first positioning groove (32) and one end of the second positioning groove (33) are located on the same central axis, and the second positioning groove (33) is in the shape of a quarter circular arc.

4. The injection nozzle for a truncated automobile exterior injection molded part according to claim 1, characterized in that: A square groove (343) for rotational engagement with the first connecting arm (37) is provided on one side of the middle portion of the adjusting seat (34), and the width of the square groove (343) is greater than the thickness of the first connecting arm (37).

5. The injection nozzle for a truncated automobile exterior injection molded part according to claim 1, characterized in that: Two positioning blocks (344) that slide in cooperation with the connecting groove are fixedly connected to both sides of the adjustment seat (34); the thickness of the positioning blocks (344) is the same as the thickness of the connecting groove; and the distance between two adjacent positioning blocks (344) is the same as the radius of the second positioning groove (33).

6. The injection nozzle for a truncated automobile exterior injection molded part according to claim 1, characterized in that: The included angle between the support rod (35) and the adjustment seat (34) is 90°. The support rod (35) is located in the middle of the adjustment seat (34), and the two support rods (35) correspond to each other on the left and right.

7. The injection nozzle for a truncated automobile exterior injection molded part according to claim 4, characterized in that: One end of the first connecting arm (37) is hingedly connected to one end of the second connecting arm (43); the length of the first connecting arm (37) is greater than the length of the second connecting arm (43); and both the first connecting arm (37) and the second connecting arm (43) are made of metal material.

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