System and method for testing production quality of automobile instrument panel assembly

Abstract

The invention relates to the technical field of automobile dashboards, in particular to an automobile dashboard assembly production quality test system and a test method thereof.The automobile dashboard assembly production quality test system comprises a feeding tank, a placing disc, a material distributing mechanism, a shading barrel and a hot pressing disc, injection molding particles are placed in the feeding tank, a feeding port is formed in one side of the feeding tank, and a material outlet is formed in the other side of the feeding tank; one end of the feeding tank is fixedly connected with a supporting column, the upper end of the supporting column is provided with a feeding pipeline, the feeding pipeline is communicated with the feeding port, the lower end of the feeding tank is provided with a conical part, the lower end of the conical part is fixedly connected with a vertical cylinder, and the material distributing mechanism is arranged on the lower side of the vertical cylinder; the material distributing mechanism comprises a separating disc, the upper end face of the separating disc is in close contact with the lower end face of the vertical cylinder, when the separating disc moves towards one side and is eccentric to the vertical cylinder, an eccentric material falling opening is formed, and the automatic testing function is conveniently, rapidly and efficiently achieved.

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 instruments are composed of various instruments and indicators, especially warning lights and alarms for drivers, which provide drivers with the required information on automobile operating parameters. Automobile instruments are installed and integrated on the automobile dashboard to reflect the operating status of the internal machinery of the car and assist the driver in driving. Existing automobile dashboards are generally formed by injection molding. Plastic particles are heated and high pressure is applied to the molten plastic to make it ejected and fill the mold cavity and solidify into shape. Therefore, in order to ensure the quality of the dashboard, it is necessary to strictly control the quality of its injection molding raw materials. 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 dashboard after molding, and even affecting its process strength quality.

[0003] The existing patent announcement number CN118858231B discloses a quality inspection device for PVC plastic particles, which includes a workbench, a rotating disk, a feeding tank, a carrying disk, a molding 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 molding part includes a hot pressing plate, and the hot pressing plate 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 with a unloading barrel.

[0004] In the above technical solution, an inverted cone-shaped loading tank is provided to store plastic particles, and a pair of movable fan-shaped plates are controlled to open and close so as to control the orderly discharge of plastic particles. However, particles that can only fall from both sides will accumulate on both ends of the supporting plate, eventually resulting in uneven thickness of the hot-pressed film and errors in light transmittance detection.

[0005] Therefore, it is necessary to provide a production quality testing system and a testing method for an automobile instrument panel assembly, which can achieve the effect 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 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 plate, 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, a support column is fixedly connected to one end of the feeding tank, a feeding pipe is provided at 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 at the lower side of the vertical cylinder;

[0009] The material distribution mechanism includes a separation disk, the upper end surface of the separation disk 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 drop opening is formed, the injection molding particles are dropped into the placement disk through the eccentric drop opening, and the separation disk in the eccentric state rotates along the axis of the vertical cylinder;

[0010] A lifting assembly is arranged on the upper side of the hot pressing plate, a resistance wire is arranged 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 arranged in the light-shielding cylinder, and a light-sensing unit is arranged 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 plate, 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 disk, 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, and both 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 matched with the limiting hole.

[0016] In one embodiment, the brake rod passes through the semicircular plate and slidably cooperates with the semicircular plate, one end of the brake rod is fixedly connected to a cover plate, and a tension spring is arranged 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 outer side of the transmission rod, the two ends of the rotating sleeve are fixedly connected with connecting rods, the lower end of the connecting rod is fixedly connected with a scraper rod, and the outer side of the lower end of the transmission rod is fixedly connected with a plurality of arc-shaped protrusions.

[0019] In one embodiment, the transmission rod is rotatably connected to the rotating sleeve, 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, a plurality of triangular wedge blocks 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 blocks, the helical gear ring is adapted to the triangular wedge blocks, and the transmission rod passes through the helical gear ring and is fixedly connected to the helical gear ring.

[0020] In one embodiment, a plurality of electric telescopic cylinders are disposed 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 limits 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 a circular displacement along the axis of the vertical cylinder, so that the injection molded particles are finally in a ring shape 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 technical solution and other beneficial effects of the present application will be made apparent by describing in detail the specific implementation methods of the present application in conjunction with the accompanying drawings.

[0023] In the attached picture:

[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 loading 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 cross-sectional schematic diagram of a feeding tank of the present invention;

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

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

[0032] In the figure: 1, feeding tank; 101, vertical cylinder; 102, separation plate; 103, displacement groove; 104, rack; 105, gear; 106, semicircular arc 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. Baffle plate; 203. Rotating sleeve; 204. Connecting rod; 205. Scraping rod; 206. Arc-shaped protruding 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 to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the various specific processes and material examples provided by the present application, but those of ordinary skill in the art can 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 loading tank 1, a feeding port is provided on one side of the loading tank 1, a support column 8 is fixedly connected to one end of the loading tank 1, a feeding pipe 801 is provided on the upper end of the support column 8, and the feeding pipe 801 is connected to the feeding port, a tapered portion is provided at the lower end of the loading tank 1, a vertical cylinder 101 is fixedly connected to the lower end of the tapered portion, and a material distribution mechanism is provided at 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 drop opening is formed, and the injection molding particles are dropped into the placement disc 3 through the eccentric drop opening, and the separation disc 102 in the eccentric state rotates along the axis of the vertical cylinder 101;

[0043] A lifting assembly is arranged on the upper side of the hot pressing plate 5, a resistance wire is arranged inside the hot pressing plate 5, and the hot pressing plate 5 is adapted to the placement plate 3;

[0044] A light-emitting unit is arranged in the light-shielding tube 7, and a light-sensing unit is arranged in the placement plate 3;

[0045] Three groups of placement trays 3 are provided, 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 feed pipe 801, and the injection molding particles fall into the loading tank 1 through the feed pipe 801, and fall into the vertical cylinder 101 along the cone, and the lower end outlet 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 film forming thickness in the subsequent test and improving the accuracy of the test results;

[0047] Then, the placing plate 3 is driven to rotate intermittently by the rotating plate 4, and the injection-molded particles after loading are driven to the lower side of the hot pressing plate 5. The hot pressing plate 5 is driven down by the lifting component, and the resistance wire heats the hot pressing plate 5. The injection-molded particles are hot-pressed to form a test film in cooperation with the placing plate 3. The lifting component includes but is not limited to a lead screw mechanism, a cylinder or a hydraulic cylinder, etc.;

[0048] Then the test film is moved to the lower side of the light-shielding tube 7, and the internal light-emitting unit illuminates the test film. The penetrating light is received by the photosensitive unit, and compared with the standard value to detect 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 plurality 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. 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. Both 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 guiding action of the guide rod 107, the rack 104 drives the separation disc 102 and the semi-circular arc plate 106 to deflect linearly to one side until the semi-circular arc 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 semicircular plate 106 to rotate, and the transfer ring 108 rotates along the outer side of the vertical cylinder 101, so as to further improve the rotation stability of the separation disc 102, and realize the annular displacement of the eccentric blanking port, so as to carry out 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, under the resetting action of the tension spring, the separation disc 102 is reset, and the vertical cylinder 101 is blocked, so that a circle of annular uniform blanking of injection molded particles can be completed, which has a high degree of automation and strong practicality.

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

[0053] Preferably, since it is necessary to first offset the separation disc 102 to form an eccentric blanking port and then drive it to move in an annular manner, in order to avoid the separation disc 102 being driven to move 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, so that the semi-circular arc plate 106 and the vertical cylinder 101 are stuck to 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 offset to one side until the brake rod 112 is separated from the limiting hole 111, and the semi-circular arc plate 106 contacts the baffle 110 and stops. At this time, the gear 105 can rotate to drive the separation disc 102 to move in an annular manner. After one rotation, 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 and further improves the stability of the annular blanking.

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

[0055] Preferably, since the thickness of the vertical cylinder 101 is relatively thin, the depth of the limiting hole 111 is relatively small. Therefore, the separation disc 102 may not completely open the eccentric blanking opening, and the brake rod 112 may 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 only after the eccentric blanking opening is opened to a certain size, a cover plate 113 is provided. The brake rod 112 passes through the semicircular plate 106 and slidably cooperates with it. A tension spring is provided so that in the absence of external force, the cover plate 113 is tightly attached to the semicircular plate 106. In the initial state, the brake rod 112 is only partially stuck. The semicircular plate 106 is inserted 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 and pushes the cover plate 113, thereby driving the brake rod 112 to disengage from the limiting hole 111, until the semicircular plate 106 contacts and the baffle 110, and the brake rod 112 is completely out of the limiting hole 111, and the rotation and unloading work can begin.

[0056] The upper end of the feeding tank 1 is fixedly connected to a motor 2, and the lower end of the motor 2 drives a 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 a 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 shielding plate 202 is provided to block the transverse hole, thereby preventing the injection molding particles from falling therefrom and causing internal jamming.

[0058] A rotating sleeve 203 is arranged outside the transmission rod 201 , and connecting rods 204 are fixedly connected to both ends of the rotating sleeve 203 . A scraper rod 205 is fixedly connected to the lower end of the connecting rod 204 . A plurality of arc-shaped protruding blocks 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 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, so as to stir the internal injection-molded particles and prevent blockage when discharging from the vertical cylinder 101. The transmission rod 201 is driven by the motor 2 only, and the separation disk 102 can be rotated and discharged synchronously without the need for additional drive components, thus 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 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.

[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 will be difficult to drive the transmission rod 201 to reverse only by 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 block are provided. Specifically, the triangular wedge block 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 8As shown), the separation disc 102 is driven to deflect and rotate to discharge materials. At the same time, the transmission rod 201 pushes the triangular wedge block and the rotating ring 208 to rotate through the bevel gear ring 210, which can drive the rotating sleeve 203 to rotate, so that the scraper rod 205 and the arc-shaped protrusion block 206 stir the injection molded particles, so that auxiliary feeding is performed while discharging materials. The two have good synchronization and strong practicality; after the separation disc 102 rotates one circle, the motor 2 is turned off, and the separation disc 102 is reset under the resetting action of the tension spring member, and the transmission rod 201 is driven to reverse at the same time. At this time, the bevel gear ring 210 will continuously push the rotating ring 208 downward along the inclined surface of the triangular wedge block, and the spring telescopic rod 207 is telescopically adapted, 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 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 continuously shake up and down, so that the injection-molded particles are gradually spread out after being subjected to continuous vibration, thereby ensuring the uniformity of the molding thickness of the test film, and having strong practicality.

[0064] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, internal communication between two elements, or an interaction relationship between two elements. For ordinary technicians in this field, the meanings of the above terms in this application can be understood according to specific circumstances.

[0065] The above is a detailed introduction to a production quality testing system and a testing method for an automobile instrument panel assembly provided in an embodiment of the present application. Specific examples are used in this article 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 solution and its core idea 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 replace some of the technical features therein with equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions 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 placing 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), a feeding pipe (801) is provided at the upper end of the support column (8), and the feeding pipe (801) is connected to the feeding port, a conical 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 conical portion, and the material distribution mechanism is provided at the lower side of the vertical cylinder (101); The material distribution mechanism comprises 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), when the separation disk (102) is displaced to one side and eccentric to the vertical cylinder (101), an eccentric material drop opening is formed, the injection molded particles are dropped into the placement disk (3) through the eccentric material drop opening, and the separation disk (102) in the eccentric state rotates along the axis of the vertical cylinder (101); A lifting assembly is arranged on the upper side of the hot pressing plate (5), a resistance wire is arranged on the inner side of the hot pressing plate (5), and the hot pressing plate (5) is adapted to the placement plate (3); The light-shielding cylinder (7) is provided with a light-emitting unit, and the placement plate (3) is provided with a light-sensing unit; 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).

2. The production quality testing system for an automobile instrument panel assembly according to claim 1, characterized in that: A displacement groove (103) is provided at the lower end of the separation disc (102), a gear (105) is arranged in the displacement groove (103), a rack (104) is fixedly connected to one side of the displacement groove (103), a transverse hole is penetrated through the upper end of the displacement groove (103), a rotating rod (109) is arranged 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); a plurality of guide rods (107) penetrate through and slidably fit the upper end of the semicircular plate (106); a transfer ring (108) is fixedly connected to the inner side of the guide rod (107); 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); a tension spring is sleeved on the outer side of the guide rod (107); and two ends of the tension spring are respectively connected to the transfer ring (108) and the semicircular plate (106).

3. The production quality testing system of an automobile instrument panel assembly according to claim 2, characterized in that: A brake rod (112) is arranged 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 matched with the limiting hole (111).

4. The production quality testing system for an automobile instrument panel assembly according to claim 3, 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).

5. The production quality testing system for an automobile instrument panel assembly according to claim 2, characterized in that: The upper end of the loading 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.

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

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

8. 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 arranged 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.

9. 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 adding injection molding particles into the feeding pipe (801), and dropping 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 drop opening is formed at the lower side of the vertical cylinder (101), and the injection molded particles are dropped into the placement plate (3) through the eccentric drop opening; S3, the separation plate (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 plate (3); S4, driving the placement plate (3) to rotate intermittently through the rotating plate (4), driving the injection-molded particles that have been loaded 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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