Automobile front bumper mold frame

Abstract

The utility model relates to the technical field of mould frame, concretely relates to a car front bumper mould frame, including two frame bodies that symmetrically set up, two frame body outside middle part position fixed mounting has driving part, driving part is used for adjusting the relative position between two frame body middle part, still include two clamping plates that move and connect in frame body inside position, two clamping plates are used for clamping to mould, and the guide rod is inserted between two clamping plate middle part, two guide rod are engaged and are connected with the nut, the nut is used for fixing the relative position between two clamping plates. Through the plug -in cooperation between the sleeve on the clamping plate and the plug -in rod, when the mould closing trajectory is offset, the corresponding pressure data can be detected by the pressure sensor distributed in the end of the plug -in rod in the ring structure, and the mould closing precision is fed back in time through the mode, so that the probability of defective products in the actual production process is effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of mold frames, and in particular to a front bumper mold frame for automobiles. Background Technology

[0002] A mold frame is the support for a mold. For example, on a die-casting machine, the part that assembles and fixes the various parts of the mold according to a certain pattern and position, and allows the mold to be installed on the die-casting machine, is called the mold frame. It is usually composed of a mold clamping mechanism and a drive mechanism. Car front bumpers are also manufactured by injection molding. In the actual injection molding process, the mold frame drives the mold to close the mold. Since the front bumper is relatively long, the corresponding mold is also relatively long. Therefore, it is necessary to ensure that the mold movement trajectory is fixed during the injection molding process to achieve accurate mold closing. Existing injection molds used in the production of front bumpers usually use guide rods to limit the mold closing trajectory. After long-term use, the corresponding guide rods will wear and produce errors between the guide holes, which will lead to misalignment between the corresponding molds during mold closing, thus affecting the injection molding effect. However, slight deviations are not easy to detect and can easily cause defective products and losses in the actual production process. In view of this, we provide a car front bumper mold frame. Summary of the Invention

[0003] To address the aforementioned shortcomings of existing technologies, this invention provides a front bumper mold base for automobiles. This effectively solves the problem that existing injection molds used in front bumper production typically employ guide rods to limit the mold closing trajectory. After prolonged use, wear and tear can occur between the guide rods and guide holes, leading to misalignment between the corresponding molds during mold closing and affecting the injection molding effect. However, subtle deviations are not easily detected and can easily result in defective products and losses during actual production.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A car front bumper mold frame includes two symmetrically arranged frames, and a driving component is fixedly installed at the middle position of the outer side of the two frames. The driving component is used to adjust the relative position between the middle of the two frames.

[0006] It also includes two clamping plates movably connected to the inner side of the frame, the two clamping plates being used to clamp the mold, and a guide rod inserted between the middle of the two clamping plates, with nuts meshing on the two guide rods for fixing the relative position between the two clamping plates. It also includes a sleeve fixedly installed on one of the clamping plates, and a plug rod movably connected to the other clamping plate, with the plug rod and the sleeve being plugged into each other.

[0007] Preferably, a drive shaft is fixedly installed in the middle of the outer wall of the drive component, and the drive shaft is fixedly connected to the output end of an external hydraulic cylinder.

[0008] Preferably, the frame has two symmetrical adjustment slots, and two limiting plates are symmetrically fixedly connected to the outer wall of the clamping plate. The limiting plates are slidably engaged with the adjustment slots. The frame also includes a circular hole that passes through the clamping plate. The guide rod is slidably engaged with the circular hole. The two clamping plates located on the same side are elastically connected by a spring.

[0009] Preferably, it also includes threaded grooves symmetrically formed on the outer walls of both ends of the guide rod, with the nut engaging with the threaded groove, and a mounting block fixedly installed at the end of the guide rod, the mounting block being detachably connected to the frame.

[0010] Preferably, the end of the plug rod is provided with multiple pressure sensors, which are distributed in a ring at equal intervals at the end of the plug rod, corresponding to the plug rod being inside the sleeve when the mold is closed.

[0011] Preferably, it also includes a plurality of round rods inserted between the middle parts of the two frames, the round rods being slidably engaged with through holes formed on the frames.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This invention utilizes the insertion and connection relationship between the sleeve and the plug rod on the clamping plate. When the mold closing trajectory deviates, the pressure sensor distributed in a ring structure at the end of the plug rod can detect the corresponding pressure data. This method provides timely feedback on the mold closing accuracy and effectively avoids the probability of defective products appearing in the actual production process. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of the mold frame of the present invention;

[0016] Figure 2 This is a schematic diagram of the overall exploded structure of the mold frame of the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of the clamping member of the present invention when it is separated from the frame;

[0018] Figure 4 This is a schematic diagram of the exploded structure of the sleeve and the insertion rod of the present invention.

[0019] Drawing number explanation:

[0020] 100. Frame; 101. Through hole; 102. Adjustment slot; 110. Drive component; 120. Drive shaft;

[0021] 200. Round rod;

[0022] 300, clamping plate; 301, round hole; 302, limiting plate; 310, spring; 320, sleeve; 330, plug rod; 331, pressure sensor;

[0023] 400, Guide rod; 401, Threaded groove; 410, Nut; 420, Mounting block;

[0024] 500. Mold. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings.

[0026] The following description is intended to disclose the invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious modifications will be apparent to those skilled in the art. The basic principles of the invention defined in the following description can be used in other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the invention.

[0027] Those skilled in the art should understand that, in the disclosure of this invention, the terms "longitudinal," "lateral," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or position based on the orientation or positional relationship shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing this invention and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this invention.

[0028] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number. Example

[0029] See attached document Figure 1-4As shown, a car front bumper mold frame includes two symmetrically arranged frame bodies 100. A drive member 110 is fixedly installed at the middle position of the outer side of the two frame bodies 100. The drive member 110 is used to adjust the relative position between the middle of the two frame bodies 100. Specifically, in this application, the drive member 110 can be used to adjust the relative position between the two frame bodies 100. In particular, in the actual injection molding process, two molds 500 are fixed on the two frame bodies 100 respectively. When the two frame bodies 100 are close to each other, the two molds 500 can achieve mold closing.

[0030] Specifically, it also includes two clamping plates 300 movably connected to the inner side of the frame 100, the two clamping plates 300 being used to clamp the mold 500, and a guide rod 400 inserted between the middle of the two clamping plates 300. Nuts 410 are engaged on the two guide rods 400, the nuts 410 being used to fix the relative position between the two clamping plates 300. It also includes a sleeve 320 fixedly installed on one of the clamping plates 300, and a plug rod 330 movably connected to the other clamping plate 300, and the plug rod 330 and the sleeve 320 are plugged into each other. Correspondingly, in this application, the two clamping plates 300 set on the frame 100 can stably clamp the mold 500. Specifically, the two clamping plates 300 can be adjusted in position by the guide rod 400, and the corresponding adjustment direction is vertical. The two clamping plates 300 can be adjusted in the vertical direction along the guide rod 400 to achieve stable clamping of the mold 500. Correspondingly, the thickness in the vertical direction varies depending on the mold 500. Therefore, in this application, the two clamping plates 300 can overlap the upper and lower outer walls of the mold 500 to achieve initial fixation of the mold 500. Subsequently, the relative position of the two clamping plates 300 can be fixed by the nut 410 engaged with the outer wall of the guide rod 400, thereby achieving stable clamping of the mold 500 located between the two clamping plates 300.

[0031] In one embodiment, a drive shaft 120 is fixedly installed in the middle of the outer wall of the drive component 110, and the drive shaft 120 is fixedly connected to the output end of an external hydraulic cylinder. By using the drive shaft 120 on the outer wall of the drive component 110, the distance between the two frames 100 can be adjusted, thereby enabling the mold closing operation between the two molds 500.

[0032] Furthermore, in this application, in order to improve the practicality of the mold frame, it is understood that the size of the mold 500 corresponding to different sizes and models of car front bumpers is different. Therefore, in the actual clamping process, the clamping plates 300 need to be able to adjust their positions. Therefore, in this application, the frame 100 is provided with two adjustment grooves 102 in a symmetrical structure, and two limiting plates 302 are symmetrically fixedly connected to the outer wall of the clamping plate 300. The limiting plates 302 and the adjustment grooves 102 are slidably engaged. It also includes a circular hole 301 that passes through the clamping plate 300. The guide rod 400 is slidably engaged with the circular hole 301. The two clamping plates 300 located on the same side are elastically connected by a spring 310. The two clamping plates 300 are elastically connected by a spring 300 located in their middle position. This means that the distance between the two clamping plates 300 can be freely adjusted in the vertical direction. Correspondingly, in order to ensure that the clamping plates 300 can be adjusted stably, the limiting plate 302 on the outer end of the clamping plate 300 and the adjusting groove 102 also maintain a sliding fit. In addition, the guide rod 400 inserted between the middle of the two clamping plates 300 also limits the movement trajectory of the clamping plates 300.

[0033] Specifically, it also includes threaded grooves 401 symmetrically formed on the outer walls of both ends of the guide rod 400, with the nut 410 meshing with the threaded grooves 401, and a mounting block 420 fixedly installed at the end of the guide rod 400. The mounting block 420 is detachably connected to the frame 100, and corresponding to the guide rod 400, a clearance groove is provided on the mold 500. In the actual clamping process, the two clamping plates 300 pre-clamp the mold 500 under the action of the spring 310. The subsequent stable clamping method is to use the nut 410 meshing with the threaded grooves 401. By rotating the nut 410, the clamping plates 300 can achieve stable clamping of the mold 500.

[0034] Under the premise of ensuring that the mold 500 and the frame 100 are relatively fixed, the mold closing and demolding operations can be realized by adjusting the distance between the frames 100. Correspondingly, in order to ensure the stability of the mold closing process, multiple round rods 200 are inserted between the middle of the two frames 100. The round rods 200 slide with the through holes 101 opened on the frame 100. In the actual mold closing process, the sliding relationship between the through holes 101 opened on the frame 100 and the round rods 200 can limit the movement trajectory of the frame 100. However, after long-term use, friction will occur between the round rods 200 and the through holes 101, which will cause the inner wall of the through holes 101 to be worn. The movement trajectory of the frame 100 will deviate, resulting in poor sealing of the mold 500 at the mold closing position and affecting the injection molding quality of the subsequent bumper.

[0035] Furthermore, in order to ensure timely feedback and adjustment when the above-mentioned errors occur, in this application, a plurality of pressure sensors 331 are provided at the end of the plug rod 330. The pressure sensors 331 are distributed in a ring at equal intervals at the end of the plug rod 330. When the mold is closed, the plug rod 330 is located inside the sleeve 320. First, through the insertion relationship between the plug rod 330 and the sleeve 320, during each mold closing, the corresponding plug rod 330 will be located inside the sleeve 320, and the multiple pressure sensors 331 set at the end of the plug rod 330 will not contact the inner wall of the sleeve 320. At this time, the corresponding pressure sensors 331 cannot detect pressure data. As the mold 500 is used continuously, the reciprocating movement between the two frames 100 and the wear caused by the frictional contact between the through hole 101 and the round rod 200 will cause the clamping plate 300 to shift synchronously with the mold 500. Therefore, the outer wall of the plug rod 330 will contact the inner wall of the sleeve 320. At this time, the pressure sensor 331 can contact the inner wall of the sleeve 320 and detect pressure data. When pressure data is received, it can be understood that the molds 500 are not in a precise mold closing state during this mold closing.

[0036] In particular, since multiple pressure sensors 331 are arranged in a ring shape and distributed at the end of the plug rod 330, this layout allows for the detection of any angular deviation of the mold 500 during the mold closing stage. In actual injection molding, especially in assembly line operations, simply monitoring whether pressure data is generated is sufficient to determine whether the mold 500 is closing accurately, facilitating subsequent adjustments.

[0037] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments, and any modifications or variations of the embodiments of the present invention may be made without departing from the stated principles.

Claims

1. A car front bumper mold frame, characterized in that, include: Two symmetrically arranged frames (100) are provided, and a driving component (110) is fixedly installed at the middle position of the outer side of the two frames (100). The driving component (110) is used to adjust the relative position between the middle of the two frames (100). It also includes two clamping plates (300) movably connected to the inner side of the frame (100), the two clamping plates (300) being used to clamp the mold (500), and a guide rod (400) inserted between the middle of the two clamping plates (300), with nuts (410) meshing on the two guide rods (400), the nuts (410) being used to fix the relative position between the two clamping plates (300), and a sleeve (320) fixedly installed on one of the clamping plates (300), and a plug rod (330) movably connected to the other clamping plate (300), and the plug rod (330) and the sleeve (320) being plugged into each other.

2. The automobile front bumper mold frame according to claim 1, characterized in that: A drive shaft (120) is fixedly installed in the middle of the outer wall of the drive component (110), and the drive shaft (120) is fixedly connected to the output end of the external hydraulic cylinder.

3. The automobile front bumper mold frame according to claim 2, characterized in that: The frame (100) has two symmetrical adjustment slots (102). Two limiting plates (302) are symmetrically fixed on the outer wall of the clamping plate (300). The limiting plates (302) and the adjustment slots (102) are slidably engaged. The frame also includes a circular hole (301) that passes through the clamping plate (300). The guide rod (400) is slidably engaged with the circular hole (301). The two clamping plates (300) located on the same side are elastically connected by a spring (310).

4. The automobile front bumper mold frame according to claim 3, characterized in that: It also includes threaded grooves (401) that are symmetrically formed on the outer walls of both ends of the guide rod (400), the nut (410) and the threaded groove (401) being engaged and connected, and a mounting block (420) fixedly installed at the end of the guide rod (400), the mounting block (420) being detachably connected to the frame (100).

5. The automobile front bumper mold frame according to claim 4, characterized in that: Multiple pressure sensors (331) are provided at the end of the plug rod (330). The pressure sensors (331) are distributed in a ring at equal intervals at the end of the plug rod (330). When the mold is closed, the plug rod (330) is located inside the sleeve (320).

6. The automobile front bumper mold frame according to claim 5, characterized in that: It also includes a plurality of round rods (200) inserted between the middle of the two frames (100), the round rods (200) slidingly engaging with through holes (101) opened on the frames (100).

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