A production quality testing system and testing method for automobile instrument panel assembly

Abstract

The present invention relates to the technical field of automobile instrument panels, and in particular to a production quality testing system and a testing method for an automobile instrument panel assembly, comprising a loading tank, a placing plate, a distributing mechanism, a light-shielding cylinder and a hot pressing plate, wherein injection molding particles are placed in the loading tank, a feeding port is provided on one side of the loading tank, one end of the loading tank is fixedly connected to a support column, a feeding pipe is provided on the upper end of the support column, and the feeding pipe is connected to the feeding port, a tapered portion is provided at the lower end of the loading tank, a vertical cylinder is fixedly connected at the lower end of the tapered portion, and the distributing mechanism is provided on the lower side of the vertical cylinder; the distributing mechanism includes a separation plate, the upper end face of the separation plate is in close contact with the lower end face of the vertical cylinder, and when the separation plate is displaced to one side and eccentric to the vertical cylinder, an eccentric dropping port is formed. The present invention realizes the automatic testing function conveniently and efficiently.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile instrument panels, and in particular to a production quality testing system and a testing method for an automobile instrument panel assembly. Background Art

[0002] Automobile instrumentation consists of various instruments and indicators, especially driver warning lights and alarms, which provide the driver with the required information on the vehicle's operating parameters. Automobile instrumentation is installed and integrated on the vehicle dashboard, reflecting the operating status of the vehicle's internal machinery and assisting the driver in driving. Existing automobile instrument panels are generally formed by injection molding. Plastic particles are heated and high pressure is applied to the molten plastic, causing it to be ejected and fill the mold cavity, and then solidified into shape. Therefore, in order to ensure the quality of the instrument panel, the quality of its injection molding raw materials needs to be strictly controlled. However, impurities are inevitably present in the produced plastic particles. Excessive impurities mixed in the plastic particles will affect the performance of the plastic particles, resulting in impurities on the surface of the molded instrument panel and even affecting its process strength quality.

[0003] The existing patent announcement number CN118858231B discloses a quality inspection equipment for PVC plastic particles, which includes a workbench, a rotating disk, a feeding tank, a carrying disk, a forming part and a light source part. The feeding tank is used to place and store the particle body, and the feeding tank is used to unload the particle body into the carrying disk; the carrying disk is provided with at least one group, and the carrying disk can be raised and lowered on the rotating disk, and the rotating disk drives the carrying disk to rotate relative to the workbench; the forming part includes a hot pressing plate, which is used to hot-press the particle body in the carrying disk into a plastic film; a photosensitive unit is provided on the inner side of the carrying disk, and the light source part is used to irradiate the plastic film and cooperate with the photosensitive unit to perform light transmittance detection; the lower side of the feeding tank is provided as an inverted cone, the upper side of the feeding tank is provided with a feed port, and the lower end of the inverted cone is fixedly connected to a feeding barrel.

[0004] In the above technical solution, an inverted cone-shaped feeding tank is provided to store the plastic particles, and the plastic particles are discharged in an orderly manner by controlling the opening and closing of a pair of movable fan-shaped plates. However, the particles that can only fall from both sides will accumulate on both ends of the carrying plate, eventually resulting in uneven thickness of the hot-pressed film and errors in the light transmittance detection.

[0005] Therefore, it is necessary to provide a production quality testing system and testing method for an automobile instrument panel assembly, which can achieve the purpose of automatic testing. Summary of the Invention

[0006] The object of the present invention is to provide a production quality testing system and a testing method for an automobile instrument panel assembly, so as to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a production quality testing system and a testing method for an automobile instrument panel assembly, comprising a feeding tank, a placing tray, a material distribution mechanism, a light shielding tube and a hot pressing plate,

[0008] Injection molding particles are placed in the feeding tank, a feeding port is provided on one side of the feeding tank, one end of the feeding tank is fixedly connected to a support column, a feeding pipe is provided on the upper end of the support column, and the feeding pipe is connected to the feeding port, a tapered portion is provided at the lower end of the feeding tank, a vertical cylinder is fixedly connected to the lower end of the tapered portion, and the material distribution mechanism is provided on the lower side of the vertical cylinder;

[0009] The material distribution mechanism includes a separation disk, the upper end surface of which is in close contact with the lower end surface of the vertical cylinder. When the separation disk is displaced to one side and eccentric to the vertical cylinder, an eccentric discharge port is formed, and the injection molding particles are discharged into the placement disk through the eccentric discharge port. The separation disk in the eccentric state rotates along the axis of the vertical cylinder.

[0010] A lifting assembly is provided on the upper side of the hot pressing plate, a resistance wire is provided on the inner side of the hot pressing plate, and the hot pressing plate is adapted to the placement plate;

[0011] A light-emitting unit is provided in the light-shielding cylinder, and a light-sensing unit is provided in the placement plate;

[0012] The placing trays are provided in three groups, and a rotating tray is provided at the lower end of the placing trays.

[0013] In one embodiment, a displacement groove is provided at the lower end of the separation disc, a gear is provided in the displacement groove, a rack is fixedly connected to one side of the displacement groove, a transverse hole is provided through the upper end of the displacement groove, a rotating rod is provided in the transverse hole, the lower end of the rotating rod is fixedly connected to the gear, and the gear and the rack are meshed with each other;

[0014] A semi-arc plate is fixedly connected to one side of the separation disc, and a plurality of guide rods are passed through and slidably fitted on the upper end of the semi-arc plate. A transfer ring is fixedly connected to the inner side of the guide rod, and the transfer ring is rotatably connected to the vertical cylinder. A baffle is fixedly connected to the outer end of the guide rod, and a tension spring is sleeved on the outer side of the guide rod. The two ends of the tension spring are respectively connected to the transfer ring and the semi-arc plate.

[0015] In one embodiment, a brake rod is provided on the inner side of the semicircular arc plate, and a limiting hole is provided on one side of the vertical cylinder, and the brake rod is adapted to the limiting hole.

[0016] In one embodiment, the brake rod passes through the semicircular plate and is slidably engaged therewith, one end of the brake rod is fixedly connected to a cover plate, and a tension spring is provided between the cover plate and the semicircular plate.

[0017] In one embodiment, the upper end of the feeding tank is fixedly connected to a motor, the lower end of the motor drives a transmission rod, the lower end of the transmission rod is fixedly connected to a rotating rod, and the outer side of the lower end of the transmission rod is rotatably connected to a baffle plate, which blocks the horizontal hole.

[0018] In one embodiment, a rotating sleeve is provided on the outside of the transmission rod, both ends of the rotating sleeve are fixedly connected to connecting rods, the lower end of the connecting rod is fixedly connected to a scraper rod, and the outer side of the lower end of the transmission rod is fixedly connected to a plurality of arc-shaped protrusions.

[0019] In one embodiment, the transmission rod is rotatably connected to the rotating sleeve, and a plurality of spring telescopic rods are provided at the upper end of the rotating sleeve. A rotating ring is provided at the upper end of the spring telescopic rods, and a plurality of triangular wedges are fixedly connected to the upper end of the rotating ring. A helical gear ring is provided on the upper side of the triangular wedge, and the helical gear ring is adapted to the triangular wedge, and the transmission rod passes through the helical gear ring and is fixedly connected to it.

[0020] In one embodiment, a plurality of electric telescopic cylinders are provided at the lower end of the rotating disk, and the electric telescopic cylinders are used to drive the placement disk to vibrate up and down.

[0021] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the present invention restricts the outlet at the lower end of the vertical cylinder by setting a separation disk; when unloading is required, the separation disk is displaced to one side relative to the vertical cylinder, thereby being eccentric to the vertical cylinder, forming an eccentric discharge port on the lower side of the vertical cylinder, and the injection molded particles begin to be unloaded through the eccentric discharge port; at the same time, the eccentric separation disk rotates along the axis of the vertical cylinder, so that the eccentric discharge port also performs an annular displacement along the axis of the vertical cylinder, so that the injection molded particles are finally annular and fall evenly into the placement disk, thereby ensuring the uniformity of the film forming thickness in subsequent tests and improving the accuracy of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The following detailed description of the specific embodiments of the present application in conjunction with the accompanying drawings will make the technical solutions and other beneficial effects of the present application apparent.

[0023] In the attached figure:

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is an overall cross-sectional schematic diagram of the present invention;

[0026] Figure 3 yes Figure 2 A local enlarged schematic diagram of area B;

[0027] Figure 4It is a three-dimensional schematic diagram of the bottom of the feeding tank of the present invention;

[0028] Figure 5 It is a partial cross-sectional schematic diagram of the material distribution mechanism of the present invention;

[0029] Figure 6 It is a schematic cross-sectional view of the feeding tank of the present invention;

[0030] Figure 7 It is a three-dimensional schematic diagram of the scraper rod of the present invention;

[0031] Figure 8 yes Figure 7 A local enlarged schematic diagram of area A;

[0032] In the figure: 1, feeding tank; 101, vertical cylinder; 102, separation plate; 103, displacement groove; 104, rack; 105, gear; 106, semicircular plate; 107, guide rod; 108, transfer ring; 109, rotating rod; 110, baffle; 111, limit hole; 112, brake rod; 113, cover plate;

[0033] 2. Motor; 201. Transmission rod; 202. Shielding plate; 203. Rotating sleeve; 204. Connecting rod; 205. Scraping rod; 206. Arc-shaped raised block; 207. Spring telescopic rod; 208. Rotating ring; 210. Bevel gear ring;

[0034] 3. Place the plate;

[0035] 4. Rotating plate; 401. Electric telescopic cylinder;

[0036] 5. Hot pressing plate;

[0037] 7. Shading tube;

[0038] 8. Support column; 801. Feed pipe. DETAILED DESCRIPTION

[0039] The disclosure below provides many different embodiments or examples for realizing different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present application. In addition, the present application may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplicity and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art will appreciate the application of other processes and / or the use of other materials.

[0040] See also Figure 1-8The present invention provides a technical solution: a production quality testing system and a testing method for an automobile instrument panel assembly, comprising a feeding tank 1, a placing plate 3, a material distribution mechanism, a light shielding tube 7 and a hot pressing plate 5.

[0041] Injection molding particles are placed in the feeding tank 1, and a feeding port is provided on one side of the feeding tank 1. One end of the feeding tank 1 is fixedly connected to a support column 8, and a feeding pipe 801 is provided on the upper end of the support column 8. The feeding pipe 801 is connected to the feeding port, and a tapered portion is provided at the lower end of the feeding tank 1. The lower end of the tapered portion is fixedly connected to a vertical cylinder 101, and a material distribution mechanism is provided on the lower side of the vertical cylinder 101;

[0042] The material distribution mechanism includes a separation disc 102. The upper end surface of the separation disc 102 is in close contact with the lower end surface of the vertical cylinder 101. When the separation disc 102 is displaced to one side and eccentric to the vertical cylinder 101, an eccentric discharge port is formed. The injection molding particles are discharged into the placement tray 3 through the eccentric discharge port. The separation disc 102 in the eccentric state rotates along the axis of the vertical cylinder 101.

[0043] The upper side of the hot pressing plate 5 is provided with a lifting assembly, the inner side of the hot pressing plate 5 is provided with a resistance wire, and the hot pressing plate 5 is adapted to the placement plate 3;

[0044] A light-emitting unit is provided in the light-shielding cylinder 7, and a light-sensing unit is provided in the placement tray 3;

[0045] There are three sets of placement trays 3 , and a rotating tray 4 is provided at the lower end of the placement tray 3 .

[0046] The injection molding particles are manually added into the feeding pipe 801, and the injection molding particles fall into the feeding tank 1 through the feeding pipe 801, and fall into the vertical cylinder 101 along the cone, and the outlet at the lower end of the vertical cylinder 101 is restricted by setting a separation plate 102; when it is necessary to discharge the material, the separation plate 102 is displaced to one side relative to the vertical cylinder 101, so that it is eccentric to the vertical cylinder 101, and an eccentric discharge port is formed on the lower side of the vertical cylinder 101, and the injection molding particles begin to be discharged through the eccentric discharge port; at the same time, the eccentric separation plate 102 rotates along the axis of the vertical cylinder 101, so that the eccentric discharge port is also displaced in a ring shape along the axis of the vertical cylinder 101, so that the injection molding particles are finally in a ring shape and fall evenly into the placement plate 3, thereby ensuring the uniformity of the thickness of the film formed in the subsequent test and improving the accuracy of the test results;

[0047] Then, the rotating disk 4 drives the placement disk 3 to rotate intermittently, and the loaded injection molded particles are driven to the lower side of the hot pressing plate 5. The hot pressing plate 5 is driven down by the lifting component. The resistance wire heats the hot pressing plate 5, and cooperates with the placement disk 3 to hot press the injection molded particles to form a test film. The lifting component includes but is not limited to a screw mechanism, a cylinder or a hydraulic cylinder.

[0048] Then the test film is moved to the lower side of the light-shielding tube 7, and the test film is illuminated by the internal light-emitting unit, and the penetrating light is received by the photosensitive unit. By comparing and analyzing it with the standard value, it is detected whether the light transmittance of the tested injection-molded particles is qualified. Finally, the staff removes the tested test film to complete the quality inspection of the injection-molded particles.

[0049] A displacement groove 103 is provided at the lower end of the separation disc 102, a gear 105 is provided in the displacement groove 103, a rack 104 is fixedly connected to one side of the displacement groove 103, a transverse hole is provided through the upper end of the displacement groove 103, a rotating rod 109 is provided in the transverse hole, the lower end of the rotating rod 109 is fixedly connected to the gear 105, and the gear 105 and the rack 104 are meshed with each other;

[0050] A semi-circular plate 106 is fixedly connected to one side of the separation disc 102, and a number of guide rods 107 are passed through and slidably fitted on the upper end of the semi-circular plate 106. A transit ring 108 is fixedly connected to the inner side of the guide rod 107, and the transit ring 108 is rotatably connected to the vertical cylinder 101. The outer end of the guide rod 107 is fixedly connected to a baffle 110, and a tension spring is sleeved on the outer side of the guide rod 107. The two ends of the tension spring are respectively connected to the transit ring 108 and the semi-circular plate 106.

[0051] Preferably, when it is necessary to drive the separation disc 102 to deflect to one side, a gear 105 and a rack 104 are provided, and the two mesh with each other. When the rotating rod 109 drives the gear 105 to rotate, the gear 105 drives the rack 104 to move. Under the guidance of the guide rod 107, the rack 104 drives the separation disc 102 and the semi-circular plate 106 to deflect linearly to one side until the semi-circular plate 106 contacts the baffle 110 and stops, thereby forming an eccentric blanking port on the other side. Then, the gear 105 continues to rotate. Since the separation disc 102 cannot continue to deflect at this time, the gear 105 will directly rotate again. The separation disc 102 is driven to rotate as a whole, thereby driving the semi-circular plate 106 to rotate, and the transfer ring 108 rotates along the outer side of the vertical cylinder 101, further improving the rotation stability of the separation disc 102, and realizing the annular displacement of the eccentric blanking port, and performing uniform blanking. That is to say, through the rotation of the gear 105, the separation disc 102 can be driven to deviate to one side first, and then move in an annular manner. After the separation disc 102 rotates one circle, the separation disc 102 is reset under the resetting action of the tension spring, and the vertical cylinder 101 is blocked, thereby completing a circle of uniform annular blanking of injection molded particles, with a high degree of automation and strong practicality.

[0052] A brake rod 112 is provided on the inner side of the semicircular plate 106 , and a limiting hole 111 is provided on one side of the vertical cylinder 101 , and the brake rod 112 is adapted to the limiting hole 111 .

[0053] Preferably, since it is necessary to offset the separation disc 102 first to form an eccentric blanking port and then drive it to move in an annular manner, in order to prevent the separation disc 102 from moving in an annular manner when the gear 105 initially rotates, a brake rod 112 is provided. In the initial state, the brake rod 112 is stuck in the limiting hole 111, thereby locking the semi-circular plate 106 and the vertical cylinder 101 with each other, and the separation disc 102 cannot rotate. The gear 105 rotates to drive the rack 104 to move, and the brake rod 112 slides with the limiting hole 111 for guidance, so that the separation disc 102 must be deflected to one side until the brake rod 112 separates from the limiting hole 111 and the semi-circular plate 106 contacts the baffle 110 and stops. At this time, the gear 105 rotates to drive the separation disc 102 to move in an annular manner. After rotating one circle, it can be reset under the action of the tension spring, and the brake rod 112 is re-engaged in the limiting hole 111, which is convenient for the next blanking work, further improving the stability of the annular blanking.

[0054] The brake rod 112 passes through the semicircular plate 106 and is slidably engaged therewith. One end of the brake rod 112 is fixedly connected to the cover plate 113 . A tension spring is provided between the cover plate 113 and the semicircular plate 106 .

[0055] Preferably, due to the thin thickness of the vertical cylinder 101, the depth of the limiting hole 111 is small. Therefore, the separation disc 102 will not be completely opened to the eccentric blanking port, and the brake rod 112 will be separated from the limiting hole 111, causing the separation disc 102 to start rotating. Therefore, in order to ensure that the brake rod 112 is separated from the limiting hole 111 after the eccentric blanking port is opened to a certain size, a cover plate 113 is provided. The brake rod 112 passes through the semi-circular plate 106 and slides with it. A tension spring is provided so that the cover plate 113 is tightly attached to the semi-circular plate 106 without external force. In the initial state, the brake rod 112 is only partially stuck. The semicircular plate 106 is moved into the limiting hole 111, and there is a distance difference between the cover plate 113 and the semicircular plate 106 (the tension spring is in a stretched state at this time). Then, when the separation disc 102 is offset, the semicircular plate 106 moves under the contraction of the tension spring, while the cover plate 113 remains stationary, and the brake rod 112 remains stuck in the limiting hole 111 and does not move until the semicircular plate 106 contacts the cover plate 113 and pushes it, thereby driving the brake rod 112 to disengage from the limiting hole 111, until the semicircular plate 106 contacts the baffle 110, and the brake rod 112 is completely out of the limiting hole 111, and the rotary blanking work can begin.

[0056] The upper end of the feeding tank 1 is fixedly connected to the motor 2, and the lower end of the motor 2 drives the transmission rod 201. The lower end of the transmission rod 201 is fixedly connected to the rotating rod 109, and the outer side of the lower end of the transmission rod 201 is rotatably connected to the baffle plate 202, which blocks the horizontal hole.

[0057] Preferably, the motor 2 drives the transmission rod 201 to drive the rotating rod 109 to rotate, which can drive the gear 105 to rotate, and a baffle 202 is provided to block the transverse hole, thereby preventing the injection molding particles from falling therethrough and causing internal jamming.

[0058] A rotating sleeve 203 is provided on the outside of the transmission rod 201 , and connecting rods 204 are fixedly connected to both ends of the rotating sleeve 203 . The lower end of the connecting rod 204 is fixedly connected to a scraper rod 205 . Several arc-shaped protrusions 206 are fixedly connected to the outer side of the lower end of the transmission rod 201 .

[0059] Preferably, in order to avoid smooth discharge of the injection-molded particles inside the loading tank 1 and to prevent them from getting stuck in the vertical cylinder 101, a scraper rod 205 and an arc-shaped protrusion block 206 are provided. When the transmission rod 201 rotates, the rotating sleeve 203 is driven to rotate, thereby driving the connecting rod 204, the scraper rod 205 and the arc-shaped protrusion block 206 to rotate, stirring the internal injection-molded particles to prevent blockage when discharging from the vertical cylinder 101. Only the motor 2 is used to drive the transmission rod 201, and the separation disk 102 can be rotated and discharged synchronously without the need for additional drive components, saving costs.

[0060] The transmission rod 201 is rotatably connected to the rotating sleeve 203. A plurality of spring telescopic rods 207 are provided at the upper end of the rotating sleeve 203. A rotating ring 208 is provided at the upper end of the spring telescopic rod 207. A plurality of triangular wedges are fixedly connected to the upper end of the rotating ring 208. A bevel gear ring 210 is provided on the upper side of the triangular wedges. The bevel gear ring 210 is adapted to the triangular wedges. The transmission rod 201 passes through the bevel gear ring 210 and is fixedly connected to it.

[0061] Preferably, since the transmission rod 201 can drive the rotating sleeve 203 to rotate synchronously, when the separation disc 102 completes the rotation and unloading, the separation disc 102 needs to move linearly to reset and block the vertical cylinder 101 again. At this time, the rack 104 will drive the gear 105 to rotate in the opposite direction. However, the scraper rod 205 and the arc-shaped protrusion block 206 are buried in the injection molded particles at this time, and there is a large friction force. It is difficult to drive the transmission rod 201 to reverse by relying solely on the reset force of the tension spring, which will cause the separation disc 102 to get stuck and unable to reset smoothly. Therefore, a rotating ring 208 and a triangular wedge are provided. Specifically, the triangular wedge is engaged with the helical gear ring 210 in one direction. When unloading is required, the motor 2 drives the transmission rod 201 to rotate forward (such as Figure 8The spring retractable rod 207 is adapted to retract the transmission rod 201 so that the transmission rod 201 can rotate relative to the rotating sleeve 203, so that the scraper rod 205 and the arc-shaped protrusion block 206 can remain stationary, and the separation disc 102 can be smoothly reset.

[0062] A plurality of electric telescopic cylinders 401 are provided at the lower end of the rotating disk 4 , and the electric telescopic cylinders 401 are used to drive the placement disk 3 to vibrate up and down.

[0063] Preferably, in order to further improve the uniformity of the spreading of the injection-molded particles after unloading, an electric telescopic cylinder 401 is provided. Specifically, after the placement plate 3 receives the injection-molded particles, the electric telescopic cylinder 401 drives the placement plate 3 to shake up and down continuously, so that the injection-molded particles are subjected to continuous vibration and gradually spread out, thereby ensuring the uniformity of the thickness of the test film molding, which is highly practical.

[0064] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections, electrical connections, or interconnected connections; they can refer to direct connections, internal connectivity between two components, or an interaction between two components. A person of ordinary skill in the art will be able to understand the meaning of the above terms in this application based on the specific circumstances.

[0065] The above is a detailed introduction to a production quality testing system and testing method for an automobile instrument panel assembly provided in an embodiment of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solutions and core ideas of the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A production quality testing system for an automobile instrument panel assembly, comprising a feeding tank (1), a placement plate (3), a material distribution mechanism, a light shielding cylinder (7) and a hot pressing plate (5), characterized in that: Injection molding particles are placed in the feeding tank (1), a feeding port is provided on one side of the feeding tank (1), one end of the feeding tank (1) is fixedly connected to a support column (8), an upper end of the support column (8) is provided with a feeding pipe (801), the feeding pipe (801) is connected to the feeding port, a tapered portion is provided at the lower end of the feeding tank (1), a vertical cylinder (101) is fixedly connected to the lower end of the tapered portion, and the material distribution mechanism is provided on the lower side of the vertical cylinder (101); The material distribution mechanism includes a separation disk (102), the upper end surface of the separation disk (102) is in close contact with the lower end surface of the vertical cylinder (101), and when the separation disk (102) is displaced to one side and eccentric to the vertical cylinder (101), an eccentric discharge port is formed, and the injection molding particles are discharged into the placement disk (3) through the eccentric discharge port, and the separation disk (102) in the eccentric state rotates along the axis of the vertical cylinder (101); A lifting assembly is provided on the upper side of the hot pressing plate (5), a resistance wire is provided on the inner side of the hot pressing plate (5), and the hot pressing plate (5) is adapted to the placement plate (3); A light-emitting unit is provided in the light-shielding cylinder (7), and a light-sensing unit is provided in the placement plate (3); The placement trays (3) are provided in three groups, and a rotating tray (4) is provided at the lower end of the placement trays (3); A displacement groove (103) is provided at the lower end of the separation disc (102), a gear (105) is provided in the displacement groove (103), a rack (104) is fixedly connected to one side of the displacement groove (103), a transverse hole is provided through the upper end of the displacement groove (103), a rotating rod (109) is provided in the transverse hole, the lower end of the rotating rod (109) is fixedly connected to the gear (105), and the gear (105) and the rack (104) are meshed with each other; A semicircular plate (106) is fixedly connected to one side of the separation disc (102), and a plurality of guide rods (107) are passed through and slidably fitted on the upper end of the semicircular plate (106). A transfer ring (108) is fixedly connected to the inner side of the guide rod (107), and the transfer ring (108) is rotatably connected to the vertical cylinder (101). A baffle (110) is fixedly connected to the outer end of the guide rod (107), and a tension spring is sleeved on the outer side of the guide rod (107). The two ends of the tension spring are respectively connected to the transfer ring (108) and the semicircular plate (106).

2. The production quality testing system for an automobile instrument panel assembly according to claim 1, characterized in that: A brake rod (112) is provided on the inner side of the semicircular arc plate (106), a limiting hole (111) is provided on one side of the vertical cylinder (101), and the brake rod (112) is adapted to the limiting hole (111).

3. The production quality testing system for an automobile instrument panel assembly according to claim 2, characterized in that: The brake rod (112) passes through the semicircular plate (106) and is slidably matched therewith. One end of the brake rod (112) is fixedly connected to a cover plate (113). A tension spring is provided between the cover plate (113) and the semicircular plate (106).

4. The production quality testing system for an automobile instrument panel assembly according to claim 1, characterized in that: The upper end of the feeding tank (1) is fixedly connected to a motor (2), the lower end of the motor (2) drives a transmission rod (201), the lower end of the transmission rod (201) is fixedly connected to a rotating rod (109), and the outer side of the lower end of the transmission rod (201) is rotatably connected to a shielding plate (202), and the shielding plate (202) shields the transverse hole.

5. The production quality testing system for an automobile instrument panel assembly according to claim 4, characterized in that: A rotating sleeve (203) is provided on the outside of the transmission rod (201), the two ends of the rotating sleeve (203) are fixedly connected to connecting rods (204), the lower end of the connecting rod (204) is fixedly connected to a scraper rod (205), and the outer side of the lower end of the transmission rod (201) is fixedly connected to a plurality of arc-shaped protruding blocks (206).

6. The production quality testing system for an automobile instrument panel assembly according to claim 5, characterized in that: The transmission rod (201) is rotatably connected to the rotating sleeve (203); a plurality of spring telescopic rods (207) are provided at the upper end of the rotating sleeve (203); a rotating ring (208) is provided at the upper end of the spring telescopic rods (207); a plurality of triangular wedge blocks are fixedly connected to the upper end of the rotating ring (208); a helical gear ring (210) is provided on the upper side of the triangular wedge blocks; the helical gear ring (210) is adapted to the triangular wedge blocks; the transmission rod (201) passes through the helical gear ring (210) and is fixedly connected to the helical gear ring (210).

7. The production quality testing system for an automobile instrument panel assembly according to claim 1, characterized in that: A plurality of electric telescopic cylinders (401) are provided at the lower end of the rotating disk (4), and the electric telescopic cylinders (401) are used to drive the placement disk (3) to vibrate up and down.

8. The testing method of the production quality testing system of the automobile instrument panel assembly according to claim 1, characterized in that The following steps are involved: S1. Manually add injection molding particles into the feeding pipe (801) and drop them into the feeding tank (1); S2, the separation plate (102) is displaced to one side relative to the vertical cylinder (101), thereby being eccentric to the vertical cylinder (101), and an eccentric blanking port is formed on the lower side of the vertical cylinder (101), and the injection molded particles are discharged into the placement plate (3) through the eccentric blanking port; S3, the separation disc (102) in an eccentric state is rotated along the axis of the vertical cylinder (101), so that the injection molded particles fall evenly into the placement disc (3); S4, driving the placement plate (3) to rotate intermittently through the rotating plate (4), driving the loaded injection-molded particles to the lower side of the hot pressing plate (5), driving the hot pressing plate (5) to descend through the lifting assembly, and cooperating with the placement plate (3) to hot-press the injection-molded particles to form a test film; S5. Then the test film is moved to the lower side of the light shielding tube (7), the test film is illuminated by the light emitting unit, and the penetrating light is received by the photosensitive unit. By comparing and analyzing with the standard value, it is detected whether the light transmittance of the tested injection molded particles is qualified.

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