An automatic unloading mechanism for the material head of automobile injection molding decorative parts

By designing an automatic discharge mechanism combining handling robots, pneumatic scissors and jaws, the problem of inconvenient processing of material heads during injection molding is solved, and the automatic processing of material heads is realized, and production efficiency and product quality are improved.

CN222697767UActive Publication Date: 2025-04-01WUHAN BOLIDA AUTO ACCESSORIES CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202421319164.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-11
Publication Date
2025-04-01
Estimated Expiration
2034-06-11

AI Technical Summary

Technical Problem

In the process of injection molding, it is difficult to efficiently handle the material head of multi-cavity structure products, resulting in inconvenient redundant parts processing and rely on manual operation efficiency and easy to damage the product.

Method used

An automatic cutting mechanism for the material head of the injection molded decorative parts of automobiles is designed, and a combination of a handling robot, flat-mouth pneumatic scissors, injection molded parts clamping jaws and material head clamping jaws are used to realize automatic grasping, shearing and sorting of material heads.

Benefits of technology

The automatic processing of injection molded parts is realized, the production efficiency is improved, the stability of product quality is ensured, manual operation is reduced, and production costs are reduced.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222697767U_ABST
    Figure CN222697767U_ABST
Patent Text Reader

Abstract

The utility model discloses an automatic unloading mechanism for the head of an automobile injection molding decorative part, comprising a fixed support frame, a handling robot is arranged on one side of the fixed support frame, wherein a mounting frame is arranged at the front end of the movable arm of the handling robot, and a plurality of injection molding part clamps and a plurality of head clamps are arranged on the mounting frame; an injection molding part conveyor belt and a head conveyor belt are arranged side by side at one end of the fixed support frame; a supporting crossbeam is arranged above the fixed support frame, wherein a plurality of flat-mouthed pneumatic scissors are arranged on the supporting crossbeam. The utility model realizes the automatic grabbing, shearing and classified collection of injection molding part head through the coordinated use of the handling robot, the flat-mouthed pneumatic scissors, the injection molding part clamps and the head clamps, thereby greatly improving the production efficiency; through the arrangement of the injection molding part conveyor belt and the head conveyor belt, combined with the injection molding part collection box and the head recovery box, the automatic classified collection of the injection molding parts and the trimmed head is realized, thereby significantly improving the work efficiency.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding processing, in particular to an automatic material unloading mechanism for a material head of an automobile injection molding decorative part. Background Art

[0002] With the rapid development of modern industry and the increasing requirements for product quality, the automotive manufacturing industry has increasingly higher requirements for product quality and production efficiency. As the core process for the production of automotive plastic products, the technological innovation of injection molding technology is crucial to improving overall production efficiency. In the injection molding process, in order to improve production efficiency, the mold design tends to be a multi-cavity structure to achieve simultaneous molding of multiple products. However, this design also brings a significant problem: that is, material heads connecting multiple products will be formed between the product cavities and the gate cup inlet area. These material heads become redundant parts that need to be removed after the injection molded parts are demolded, and because of their complex and diverse shapes, they are extremely inconvenient to handle.

[0003] In the current industry, the processing of injection molded parts slugs mostly relies on manual operation. This method is not only inefficient, but also easily causes unnecessary damage to the injection molded parts during operation, thus affecting the overall quality of the product. Although injection molded parts slug trimming devices have appeared on the market, these devices have achieved automatic shearing of slugs to a certain extent. However, during the trimming process, due to the action of force, the slugs often fly outward, and the existing trimming devices do not have the function of distinguishing and collecting injection molded parts and trimmed slugs. Therefore, workers still need to manually collect these slugs, which greatly reduces the overall work efficiency. Summary of the invention

[0004] The utility model aims to provide an automatic material unloading mechanism for a material head of an automobile injection molding decorative part, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An automatic unloading mechanism for automotive injection molding decorative parts, comprising a fixed support frame; a handling robot is provided on one side of the fixed support frame, wherein a mounting frame is provided at the front end of a movable arm of the handling robot; an injection molding part conveyor belt and a material head conveyor belt are provided at one end of the fixed support frame, wherein the injection molding part conveyor belt and the material head conveyor belt are arranged side by side; two groups of support beams are provided above the fixed support frame, wherein both ends of each support beam are fixedly connected to both sides of the fixed support frame; a plurality of flat-mouthed pneumatic scissors are provided on the inner side of the support beam along its length direction, wherein each flat-mouthed pneumatic scissors is connected to the support beam through a connecting assembly; a plurality of injection molding part clamps and a plurality of material head clamps are provided on the mounting frame, wherein the mounting frame is fixedly connected to the movable arm through a connecting plate.

[0007] Preferably, the injection molding part clamps are provided with four, wherein the injection molding part clamps are grouped in pairs and are respectively arranged at the bottom of both ends of the long side of the mounting frame; a first fixed block is provided at the lower end of the long side of the mounting frame, wherein one end of the first fixed block is movably connected to the long side of the mounting frame, and the other end of the first fixed block is fixedly connected to the injection molding part clamps.

[0008] Preferably, there are three material head clamps, wherein the material head clamps are respectively arranged on the short sides at both ends of the mounting frame and the bottom of the connecting plate; a second fixed block is provided at the lower end of the short side of the mounting frame, wherein one end of the second fixed block is movably connected to the short side of the mounting frame, and the other end of the second fixed block is fixedly connected to the material head clamp.

[0009] Preferably, the width of the mounting frame is smaller than the spacing between the two groups of supporting beams, wherein the mounting frame can move horizontally between the two groups of supporting beams.

[0010] Preferably, three sets of flat-mouth pneumatic scissors are installed on the supporting crossbeam, wherein the flat-mouth pneumatic scissors correspond to the positions of the material head clamping jaws respectively.

[0011] Preferably, the discharge end of the injection molded parts conveyor belt is provided with an injection molded parts collection box, wherein the discharge end of the spool conveyor belt is provided with a spool recovery box; and baffle plates are respectively provided on both sides of the injection molded parts conveyor belt and the spool conveyor belt.

[0012] Preferably, the connecting assembly includes a fixing plate, wherein a fixing hole compatible with the outer wall of the flat-end pneumatic scissors is provided in the middle of the fixing plate; the flat-end pneumatic scissors are arranged in the fixing hole and fixedly connected to the fixing plate; a connecting rod is provided on one side wall of the fixing plate, wherein the connecting rod extends toward the outside of the supporting beam and is fixedly connected to a slider; a vertically arranged waist hole is provided on the slider, wherein a positioning screw is provided in the waist hole; a dovetail groove is provided on one side of the supporting beam close to the slider along its length direction, wherein the front end of the positioning screw passes through the waist hole and extends into the dovetail groove; a limiting block is slidably connected in the dovetail groove, wherein the limiting block is movably connected to the top end of the positioning screw.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the utility model realizes the automatic grabbing, cutting and classified collection of injection molding material heads through the coordinated use of a handling robot, a flat-mouth pneumatic scissors, an injection molding part clamp and a material head clamp, thereby greatly improving production efficiency; through precise mechanical design and operation control, it is ensured that no unnecessary damage is caused to the injection molding parts during the trimming of the material heads, thereby effectively ensuring the overall quality of the product; the setting of the injection molding part conveyor belt and the material head conveyor belt, combined with the injection molding part collection box and the material head recovery box, realizes the automatic classified collection of the injection molding parts and the trimmed material heads, eliminating the tedious steps of manual collection and significantly improving work efficiency; according to actual production needs, by adjusting the number and position of the flat-mouth pneumatic scissors, changing the layout of the injection molding part clamp and the material head clamp, etc., it adapts to the processing needs of injection molding material heads of different shapes and sizes, and through a series of innovations and optimizations, it significantly improves the automation degree and efficiency of the material head processing of automotive injection molding decorative parts, reduces production costs, improves product quality, and has broad market application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the connection between the injection molding clamping jaw and the material head clamping jaw and the mounting frame of the utility model;

[0016] Figure 3 yes Figure 2 An enlarged schematic diagram of the structure at A is shown;

[0017] Figure 4 It is a structural schematic diagram of the flat-mouth pneumatic scissors of the utility model connected with a fixed support frame;

[0018] Figure 5 yes Figure 4 An enlarged schematic diagram of the structure at point B is shown.

[0019] Among them: 1. Fixed support frame; 2. Handling robot; 3. Mounting frame; 4. Injection molded parts conveyor belt; 5. Spool conveyor belt; 6. Support beam; 7. Flat-end pneumatic scissors; 8. Connecting assembly; 801. Fixed plate; 802. Fixed hole; 803. Connecting rod; 804. Slider; 9. Injection molded parts clamp; 10. Spool clamp; 11. Connecting plate; 12. Injection molded parts; 13. Spool; 14. First fixed block; 15. Second fixed block; 16. Injection molded parts collection box; 17. Spool recovery box; 18. Material blocking plate; 19. Waist hole; 20. Positioning screw; 21. Dovetail groove. DETAILED DESCRIPTION

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0021] Please refer to Figures 1 to 5 To achieve the above purpose, the utility model provides the following technical solutions:

[0022] An automatic unloading mechanism for automotive injection molding decorative parts comprises a fixed support frame 1; a handling robot 2 is provided on one side of the fixed support frame 1, wherein a mounting frame 3 is provided at the front end of a movable arm of the handling robot 2; an injection molding part conveyor belt 4 and a material head conveyor belt 5 are provided at one end of the fixed support frame 1, wherein the injection molding part conveyor belt 4 and the material head conveyor belt 5 are arranged side by side; two groups of support beams 6 are provided above the fixed support frame 1, wherein both ends of each support beam 6 are fixedly connected to both sides of the fixed support frame 1; a plurality of flat-mouthed pneumatic scissors 7 are provided on the inner side of the support beam 6 along its length direction, wherein each flat-mouthed pneumatic scissors 7 is connected to the support beam 6 via a connecting assembly 8; a plurality of injection molding part clamps 9 and a plurality of material head clamps 10 are provided on the mounting frame 3, wherein the mounting frame 3 is fixedly connected to the movable arm via a connecting plate 11.

[0023] By controlling the handling robot 2, it drives the movable arm to move accurately above the injection molded part 12, wherein the injection molded part clamping claw 9 and the material head clamping claw 10 provided on the mounting frame 3 are opened, and then the injection molded part 12 and the material head 13 are stably clamped respectively; then the handling robot 2 moves the mounting frame 3 holding the injection molded part 12 and the material head 13 to the inner side of one of the supporting beams 6 provided above the fixed supporting frame 1, ensuring that the material head 13 part is aligned with the flat-mouthed pneumatic scissors 7 provided on the supporting beam 6, and then starts the flat-mouthed pneumatic scissors 7 to quickly shear the connection between the material head 13 and the injection molded part 12. When the shearing of the material head 13 on one side is completed, the handling robot 2 controls the mounting frame 3 to translate, so that the mounting frame 3 moves to above the other supporting beam 6, and ensures that the material head 13 on the supporting beam 6 is aligned with the flat-mouthed pneumatic scissors 7 on the supporting beam 6. The scissor head of the flat-mouth pneumatic scissors 7 is aligned with the material head 13, and the flat-mouth pneumatic scissors 7 are started to quickly cut the material head 13; after the shearing is completed, the handling robot 2 moves the injection molded part 12 and the material head 13 to the injection molded part conveyor belt 4 and the material head conveyor belt 5 respectively, wherein the injection molded part conveyor belt 4 transfers the injection molded part 12 to the designated injection molded part collection box 16 for centralized storage; the material head conveyor belt 5 transfers the trimmed material head 13 to the material head recovery box 17 for subsequent processing or recovery. Finally, the handling robot 2 returns to the initial position and prepares for the next material head trimming and transmission work. Under the scheduling of the control system, the entire automatic unloading mechanism realizes a continuous and efficient work flow, greatly improves production efficiency, reduces manual operation, reduces production costs, and ensures the stability of product quality.

[0024] Please refer to Figure 2 , Figure 3As an embodiment of the present utility model, there are four injection molding part clamps 9, wherein the injection molding part clamps 9 are grouped in pairs and are respectively arranged at the bottom of the two ends of the long side of the mounting frame 3; a first fixed block 14 is arranged at the lower end of the long side of the mounting frame 3, wherein one end of the first fixed block 14 is movably connected to the long side of the mounting frame 3, and the other end of the first fixed block 14 is fixedly connected to the injection molding part clamp 9; there are three material head clamps 10, wherein the material head clamps 10 are respectively arranged on the short sides at both ends of the mounting frame 3 and the bottom of the connecting plate 11; a second fixed block 15 is arranged on the short side and the lower end of the mounting frame 3, wherein one end of the second fixed block 15 is movably connected to the short side of the mounting frame 3, and the other end of the second fixed block 15 is fixedly connected to the material head clamp 10; a second fixed block 15 is also installed at the lower end of the connecting plate 11, wherein one end of the second fixed block is movably connected to the connecting plate 11, and the other end of the second fixed block 15 is fixedly connected to the material head clamp 10.

[0025] In the above scheme, there are four injection molding part clamps 9, wherein the four injection molding part clamps 9 are divided into two groups, and are respectively installed at the bottom of the two ends of the long side of the mounting frame 3. This design allows the injection molding part clamps 9 to simultaneously grasp and fix the two ends of the injection molding part 12, ensuring that the injection molding part 12 remains stable when the slug 13 is trimmed; there are three slug clamps 10, which are respectively installed at the short sides at both ends of the mounting frame 3 and the bottom of the connecting plate 11. Such a layout ensures that the slug 13 can be quickly captured by the slug clamps 10 after being trimmed, preventing the slug 13 from scattering everywhere; a first fixing block 14 is provided at the lower end of the long side of the mounting frame 3, wherein One end of the first fixed block 14 is movably connected to the long side of the mounting frame 3, and the other end of the first fixed block 14 is fixedly connected to the injection molding jaw 9. This movable connection method allows the injection molding jaw 9 to adjust its position when needed, so that the injection molding jaw 9 can clamp and fix different injection moldings 12; a second fixed block 15 is provided at the lower end of the short side of the mounting frame 3, wherein the second fixed block 15 is movably connected to the short side of the mounting frame 3, and the second fixed block 15 is fixedly connected to the slug jaw 10, which is similar to the injection molding jaw 9. The slug jaw 10 is adapted to the injection molding jaw 9 and is used to clamp and fix injection moldings 12 and slugs 13 of different sizes.

[0026] Furthermore, when the handling robot 2 moves the mounting frame 3 to the top of the injection molded part 12, the injection molded part clamp 9 and the material head clamp 10 are opened respectively under the command of the control system, and then clamp the two ends of the injection molded part 12 and multiple material heads 13, so that the injection molded part 12 is stably fixed on the mounting frame 3; then, the handling robot 2 is driven to control the mounting frame 3 to move to the top of one group of supporting beams 6 of the fixed support frame 1, ensuring that the material head 13 connected to the injection molded part 12 is aligned with the flat-mouthed pneumatic scissors 7 provided on the supporting beam 6, and then the flat-mouthed pneumatic scissors 7 are started to quickly cut the material head 13. When the cutting of the material head 13 on one side is completed, the handling robot 2 will control the mounting frame 3 to translate, so that the mounting frame 3 moves to the other supporting beam 6, and ensure that the scissor heads of the flat-mouth pneumatic scissors 7 on the supporting crossbeam 6 are aligned with the material head 13, and start the flat-mouth pneumatic scissors 7 to quickly cut the material head 13; after the shearing is completed, the handling robot 2 moves the injection molded parts 12 and the material heads 13 to the injection molded parts conveyor belt 4 and the material head conveyor belt 5 respectively, wherein the injection molded parts conveyor belt 4 transfers the injection molded parts 12 to the designated injection molded parts collection box 16 for centralized storage; the material head conveyor belt 5 transfers the trimmed material heads 13 to the material head recovery box 17 for subsequent processing or recovery. Through this specific clamp layout and connection method, the automatic unloading mechanism can efficiently and accurately complete the trimming and classified collection of the injection molded parts 12 and the material heads 13, thereby greatly improving the production efficiency and product quality.

[0027] Please refer to Figure 1 , Figure 2 As an embodiment of the utility model, the width of the mounting frame 3 is smaller than the spacing between the two groups of supporting beams 6, wherein the mounting frame 3 can move horizontally between the two groups of supporting beams 6; three groups of flat-mouthed pneumatic scissors 7 are respectively installed on each supporting beam 6, wherein the flat-mouthed pneumatic scissors 7 correspond to the positions of the material head clamps 10 respectively.

[0028] In the above-described scheme, the width of the mounting frame 3 is designed to be smaller than the spacing between the two groups of supporting beams 6, which enables the mounting frame 3 to move horizontally between the two groups of supporting beams 6. This design allows the material head clamp 10 on the mounting frame 3 to be accurately aligned with the flat-mouth pneumatic scissors 7, thereby achieving effective shearing of the material head 13; by installing three groups of flat-mouth pneumatic scissors 7 on the supporting beams 6, wherein the flat-mouth pneumatic scissors 7 correspond to the positions of the material head clamp 10 on the mounting frame 3 respectively, this position correspondence ensures that when shearing the material head 13, the material head clamp 10 can accurately clamp the material head 13, and the flat-mouth pneumatic scissors 7 can accurately shear off the material head 13.

[0029] See also Figure 1As an embodiment of the utility model, an injection molding part collection box 16 is provided at the discharge end of the injection molding part conveyor belt 4, wherein a material head recovery box 17 is provided at the discharge end of the material head conveyor belt 5; and baffle plates 18 are provided on both sides of the injection molding part conveyor belt 4 and the material head conveyor belt 5 respectively.

[0030] In the above-described scheme, the injection molded part conveyor belt 4 is used to receive the trimmed injection molded parts 12 from the injection molded part clamping claws 9 and convey them to the discharge end along a preset track. When the injection molded parts 12 reach the discharge end of the injection molded part conveyor belt 4, the injection molded parts 12 will be accurately placed in the injection molded parts collection box 16, wherein the injection molded parts collection box 16 is located at a suitable position at the discharge end to ensure that the injection molded parts 12 can fall into it smoothly and facilitate subsequent classification, packaging or further processing; the material head conveyor belt 5 is responsible for receiving the trimmed material head 13 from the material head clamping claws 10. When the material head reaches the discharge end of the material head conveyor belt 5, the material head 13 will be put into the material head recovery box 17, which is also located at a suitable position at the discharge end of the material head conveyor belt 5 to ensure that the material heads 13 can be collected smoothly for subsequent reuse, recycling or treatment; whether it is the injection molding conveyor belt 4 or the material head conveyor belt 5, both sides of them are provided with baffle plates 18, the main function of these baffle plates 18 is to prevent the injection molding parts 12 or the material heads 13 from sliding off or deviating from the predetermined track due to inertia or other reasons during the transmission process, and the height and position of the baffle plates 18 are carefully designed to ensure that they can effectively prevent objects from sliding off without affecting the normal transmission process.

[0031] Furthermore, during the entire unloading process, the injection molding part clamp 9 and the material head clamp 10 are responsible for grabbing the injection molding part 12 and the trimmed material head 13, respectively, and placing them on the injection molding part conveyor belt 4 and the material head conveyor belt 5, respectively; the injection molding part conveyor belt 4 and the material head conveyor belt 5 then convey the injection molding part 12 and the material head 13 to the discharge end respectively, and when they arrive at the discharge end, they will be placed in the injection molding part collection box 16 and the material head recovery box 17 respectively, wherein the baffle plate 18 plays a protective role in the entire transmission process, ensuring that the items can be stably and orderly transmitted to the designated location, through this series of carefully designed components and processes, the automatic unloading mechanism can ensure that the injection molding part 12 and the trimmed material head 13 can be efficiently collected and recycled, greatly improving production efficiency and resource utilization.

[0032] Please refer to Figure 4 , Figure 5As an embodiment of the present utility model, the connecting component 8 includes a fixing plate 801, wherein a fixing hole 802 adapted to the outer wall of the flat-end pneumatic scissors 7 is provided in the middle of the fixing plate 801; the flat-end pneumatic scissors 7 are arranged in the fixing hole 802 and fixedly connected to the fixing plate 801; a connecting rod 803 is provided on one side wall of the fixing plate 801, wherein the connecting rod 803 extends toward the outside of the supporting beam 6 and is fixedly connected to a slider 804; a vertically arranged waist hole 19 is provided on the slider 804, wherein a positioning screw 20 is provided in the waist hole 19; a dovetail groove 21 is provided along the length direction of the supporting beam 6 on one side close to the slider 804, wherein the front end of the positioning screw 20 passes through the waist hole 19 and extends into the dovetail groove 21; a limiting block (not shown) is slidably connected in the dovetail groove 21, wherein the limiting block is movably connected to the top end of the positioning screw 20.

[0033] In the above-described scheme, after the flat-end pneumatic scissors 7 are placed in the fixing hole 802, they are fixedly connected to the fixing plate 801 by bolts, welding or other connection methods, ensuring that the flat-end pneumatic scissors 7 will not shake or fall off during operation; a vertically arranged waist hole 19 is provided on the slider 804, wherein the waist hole 19 allows the positioning screw 20 to move up and down therein, but restricts its left and right movement; a dovetail groove 21 is provided along the length direction of the supporting crossbeam 6 on one side close to the slider 804, and the design of the dovetail groove 21 allows the positioning screw 20 matched therewith to slide stably therein, and by adjusting the position of the positioning screw 20 in the waist hole 19, the position of the slider 804 in the supporting crossbeam 6 can be changed. The position of the flat-end pneumatic scissors 7 is realized by supporting the crossbeam 6, thereby realizing fine adjustment of the flat-end pneumatic scissors 7; a limiting block is slidably connected in the dovetail groove 21, and the limiting block is movably connected to the top end of the positioning screw 20, wherein the function of the limiting block is to ensure that the positioning screw 20 does not accidentally slide out of the dovetail groove 21, thereby ensuring the stability of the flat-end pneumatic scissors 7. When the position of the flat-end pneumatic scissors 7 needs to be adjusted, the connection of the positioning screw 20 can be loosened, and fixed again after the adjustment is completed, so as to realize the locking of the position of the flat-end pneumatic scissors 7; through the above structure and working process, the connecting component provides a stable and adjustable installation environment for the flat-end pneumatic scissors 7, thereby ensuring the efficient and accurate operation of the automatic unloading mechanism.

[0034] Although the specific embodiments of the present invention are described above, those skilled in the art should understand that these are only examples, and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications fall within the protection scope of the present invention.

Claims

1. An automatic unloading mechanism for a material head of an automobile injection molding decorative part, comprising a fixed support frame (1); characterized in that: A handling robot (2) is provided on one side of the fixed support frame (1), wherein a mounting frame (3) is provided at the front end of the movable arm of the handling robot (2); an injection molded part conveyor belt (4) and a material head conveyor belt (5) are provided on one end of the fixed support frame (1), wherein the injection molded part conveyor belt (4) and the material head conveyor belt (5) are arranged side by side; two groups of support beams (6) are provided above the fixed support frame (1), wherein the two ends of each support beam (6) are fixedly connected to the two sides of the fixed support frame (1); a plurality of flat-mouthed pneumatic scissors (7) are provided on the inner side of the support beam (6) along its length direction, wherein each flat-mouthed pneumatic scissors (7) is respectively connected to the support beam (6) via a connecting assembly (8); a plurality of injection molded part clamps (9) and a plurality of material head clamps (10) are provided on the mounting frame (3), wherein the mounting frame (3) is fixedly connected to the movable arm via a connecting plate (11).

2. The automatic unloading mechanism for the injection molding of automotive decorative parts according to claim 1, characterized in that: Four injection molding part clamping jaws (9) are provided, wherein the injection molding part clamping jaws (9) are respectively arranged at the bottom of both ends of the long side of the mounting frame (3); a first fixing block (14) is provided at the lower end of the long side of the mounting frame (3), wherein one end of the first fixing block (14) is movably connected to the long side of the mounting frame (3), and the other end of the first fixing block (14) is fixedly connected to the injection molding part clamping jaw (9).

3. The automatic unloading mechanism for the injection molding of automotive decorative parts according to claim 1, characterized in that: The material head clamping jaws (10) are provided in three pieces, wherein the material head clamping jaws (10) are respectively arranged at the short sides at both ends of the mounting frame (3) and at the bottom of the connecting plate (11); a second fixing block (15) is provided at the lower end of the short side of the mounting frame (3), wherein one end of the second fixing block (15) is movably connected to the short side of the mounting frame (3), and the other end of the second fixing block (15) is fixedly connected to the material head clamping jaw (10).

4. The automatic unloading mechanism for the injection molding of automotive decorative parts according to claim 1, characterized in that: The width of the mounting frame (3) is smaller than the distance between the two groups of supporting beams (6).

5. The automatic unloading mechanism for the injection molding of automotive decorative parts according to claim 1, characterized in that: Three sets of flat-mouthed pneumatic scissors (7) are installed on the supporting crossbeam (6), wherein the flat-mouthed pneumatic scissors (7) correspond to the positions of the material head clamping jaws (10) respectively.

6. The automatic unloading mechanism for automotive injection molding decorative parts according to claim 1, characterized in that: The discharge end of the injection molded part conveyor belt (4) is provided with an injection molded part collection box (16), wherein the discharge end of the material head conveyor belt (5) is provided with a material head recovery box (17); and both sides of the injection molded part conveyor belt (4) and the material head conveyor belt (5) are respectively provided with material blocking plates (18).

7. The automatic unloading mechanism for automotive injection molding decorative parts according to claim 1, characterized in that: The connecting assembly (8) comprises a fixing plate (801), wherein a fixing hole (802) is provided in the middle of the fixing plate (801); a connecting rod (803) is provided on one side wall of the fixing plate (801), wherein the other end of the connecting rod (803) is fixedly connected to a slider (804); a vertically arranged waist hole (19) is provided on the slider (804), wherein a positioning screw (20) is provided in the waist hole (19); a dovetail groove (21) is provided on the side of the supporting crossbeam (6) close to the slider (804) along its length direction, wherein the front end of the positioning screw (20) passes through the waist hole (19) and extends into the dovetail groove (21).