An automatic separation and assembly device for injection-molded products

Abstract

The present invention relates to the technical field of automatic assembly machinery, and particularly relates to an automatic separation and assembly device for injection molded products. The injection molded products include a rotationally connected main body, and the rotationally connected main body is a pair of a box body and a box cover arranged horizontally. The box body and the box cover are connected by a runner forming member. Each of the box body and the box cover is provided with a rotation connecting member, and the rotation connecting member includes a shaft buckle and a shaft respectively arranged on the adjacent sides of a pair of rotationally connected main bodies. A pair of corresponding fastening members are provided on the box body and the box cover; further comprising: a fixed frame, and a limiting groove for receiving the bottom of the box body is provided on the fixed frame; a cutting device for cutting the runner forming member; an assembly device for moving the box cover until the shaft buckle and the shaft are coupled; and a lid closing device for flipping the box cover until a pair of fastening members are coupled. Automatic assembly is realized, and the production efficiency can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of automatic assembly machinery, and particularly relates to an automatic separation and assembly device for injection molded products. Background Art

[0002] The finished product of the injection molded product is a flip-top storage box as shown in Figure 1 After the injection molding process is completed, the box body 11 and the box cover 12 are connected by a pair of runner forming parts 13. In the subsequent production process, the runner forming parts 13 need to be cut off, and then the box body 11 and the box cover 12 are spliced and assembled. The assembly process includes as shown in Figure 2 The rotating connection shafts of the rotating connection members provided on the box body 11 and the box cover 12 are connected, and then as shown in Figure 3 The box body 11 and the box cover 12 are closed. Executing the above process is mostly carried out manually, and the production efficiency is not high. Summary of the Invention

[0003] To overcome the deficiencies of the above prior art, the present invention provides an automatic separation and assembly device for injection molded products, which realizes automatic assembly and can improve production efficiency.

[0004] To achieve the above object, the present invention is realized by the following technical solutions:

[0005] An automatic separation and assembly device for injection molded products, the injection molded product includes a rotating connection main body, the rotating connection main body is a pair of box bodies and box covers arranged in pairs, the box bodies and box covers are arranged horizontally, the box bodies and box covers are connected by a runner forming part, and each of the box bodies and box covers is provided with a rotating connection member, the rotating connection member includes a shaft buckle and a shaft respectively arranged on the adjacent sides of a pair of rotating connection main bodies, and a pair of corresponding buckling members are arranged on the box bodies and box covers;

[0006] It further includes:

[0007] A fixing frame, on which a limiting groove for receiving the bottom of the box body is provided;

[0008] A cutting device for cutting off the runner forming part;

[0009] An assembly device for moving the box cover to couple the shaft buckle and the shaft;

[0010] A lid closing device for flipping the box cover to couple a pair of buckling members.

[0011] Based on the above structure, a working method of an automatic separation and assembly device for injection molded products in the present application includes the following steps:

[0012] S1, placing the injection molded product on a fixed frame, and placing the box body in a limiting groove, wherein the limiting groove is used to position the injection molded product;

[0013] S2, the cutting device is started to cut off the runner molding parts;

[0014] S3, the assembly device is started, so that the box body and the box cover are rotatably connected;

[0015] S4, the cover closing device is started to close the box body and the box cover.

[0016] Furthermore, in the present application, an automatic separation and assembly device for injection molded products, the cutting device includes an ultrasonic cutting table, the ultrasonic cutting table is provided with a convex portion corresponding to the runner molding part one by one, and also includes a first driving component, the first driving component is used to drive the ultrasonic cutting table to move in the vertical direction. As a preferred embodiment of the present application, in the present application, the ultrasonic cutting table is connected to an ultrasonic generator (not shown), the convex portion is the end execution end of the ultrasonic cutting table, and when the first driving component is driven until the convex portion fits the runner molding part, the ultrasonic generator is activated, and the runner molding part can be vibrated off from between the box body and the box cover.

[0017] Furthermore, in the automatic separation and assembly device for injection molding products in the present application, the runner molding parts are arranged in pairs, the material cutting device is arranged below the runner molding parts, and the ultrasonic cutting table is provided with a material blocking rod, the top end of the material blocking rod is higher than the convex part, and when the convex part is in contact with the runner molding part, the material blocking rod is arranged inside the runner molding part. As a preferred solution of the present application, the material blocking rod is used to ensure that the runner molding parts fall outwards, and prevent the runner molding parts from falling inwards, which makes it difficult to discharge the materials.

[0018] Furthermore, in the present application, an automatic separation and assembly device for injection molded products, the fixed frame includes a horizontal plate, the ultrasonic cutting table is slidably connected to the horizontal plate in the vertical direction, a transmission convex portion is provided at the bottom of the ultrasonic cutting table, the first driving assembly includes a first driving cylinder and a transmission block, the transmission block is mounted on the movable assembly of the first driving cylinder, the fixed assembly of the first driving cylinder is mounted at the bottom of the horizontal plate, the first driving cylinder is used to drive the transmission block to move laterally, a lifting guide surface is provided on the side of the transmission block near the transmission convex portion, and the transmission convex portion abuts against the upper lifting guide surface. As a preferred embodiment of the present application, based on the above structure, longitudinal space can be saved and compactness can be improved.

[0019] Furthermore, the present application provides an automatic separation and assembly device for injection molded products, the assembly device comprising a push plate and a second drive assembly, the push plate being arranged on a side of the box cover away from the box body, the second drive assembly being in transmission connection with the push plate for driving the push plate to move laterally;

[0020] The fixing frame is provided with a sliding groove for accommodating the lateral movement of the box cover, and the box cover is arranged in the sliding groove. As a preferred solution of the present application, the push plate is driven to move by the second driving assembly to push the box cover to move toward the box body until the shaft buckle is coupled with the shaft, and the sliding groove is used to limit the movement of the box cover in the horizontal direction.

[0021] Furthermore, in the automatic separation and assembly device for injection molded products in the present application, a limiting pressure plate is extended from the upper end of the push plate, and the limiting pressure plate extends from the front end of the push plate to limit the upward movement of the box cover. As a preferred solution of the present application, before the material cutting device is started, the limiting pressure plate moves to the top of the box cover, and after the material cutting device is started, when the runner molding part fits with the convex part, the limiting pressure plate provides a downward reaction force to ensure that the runner molding part and the convex part are effectively fitted. After the material cutting is completed, when the second drive assembly drives the push plate to push the box cover, the limiting pressure plate is used to prevent the box cover from moving too far upward.

[0022] Furthermore, in the present application, an automatic separation and assembly device for injection molded products, the lid closing device includes a third driving assembly and a swing frame rotatably mounted on a fixed frame, the third driving assembly is in transmission connection with the swing frame to drive the swing frame to rotate on the fixed frame, a roller is provided at the end of the swing frame, the roller extends along the width direction of the box cover, and during the rotation of the swing frame, the roller is used to push the box cover to rotate on the box body. As a preferred solution of the present application, the swing frame is driven to flip by the third driving assembly to push the box cover to rotate on the box body, and the roller contacts the box cover during this process.

[0023] Furthermore, in the present application, an automatic separation and assembly device for injection molded products, the swing frame includes a pair of swing arms, the roller body is rotatably mounted between the pair of swing arms, the swing arms are rotatably mounted on the fixed frame, and a transmission gear is mounted on the swing arms corresponding to the rotation axis of the swing arms;

[0024] The third driving assembly includes a third driving cylinder and a rack frame, the rack frame is connected to the movable assembly of the third driving cylinder, the rack frame is provided with a transmission rack, and the transmission rack is meshed with a transmission gear. As a preferred solution of the present application, the rack frame is driven to move by the third driving cylinder to drive the transmission gear to rotate, so as to realize the rotation of the swing frame to push a pair of buckling components to couple. When a pair of buckling components are coupled, the stroke of the third driving cylinder can be limited, which has the advantage of simple control.

[0025] Furthermore, an automatic separation and assembly device for injection molded products in the present application further includes a gap detection device, the gap detection device includes a plug, a pulling driver and a pressure sensor, a limit plate is provided on one side of the box body, and a detection end of the pressure sensor is arranged on the limit plate near the side of the box body;

[0026] Before the lid closing device is started, the plug piece is arranged on the box body. After the lid closing device is started, the plug piece is clamped between the box body and the box cover.

[0027] The pulling driver is in transmission connection with the plug piece, and the pulling driver is used to pull the plug piece from the box body to the limiting plate direction. As a preferred solution of the present application, if the quality of the molded product is poor or the rotating shaft breaks during the assembly process, when a pair of fastening components are coupled, the gap between the box body and the box cover is not tight enough. Therefore, the tightness of the press fit between the box body and the box cover after the box cover is closed on the box body is an important indicator for detecting the product quality. Based on the above device, the principle is that after the lid closing device is started, the plug piece is clamped between the box body and the box cover. By pulling the plug piece with the pulling driver, due to the limitation of the limiting plate, the box body will not move. The pressure sensor is used to detect the pressure generated by the box body during this process to judge whether the box body and the box cover are tightly pressed. If the pressure sensor detects that the pressure is greater than the preset value, it is judged that the box body and the box cover are tightly pressed and the product is qualified. If the pressure sensor detects that the pressure is less than the preset value, it is judged that the product is unqualified.

[0028] Furthermore, in an automatic separation and assembly device for injection molded products in the present application, the pulling driver includes a pulling drive cylinder and a sliding seat connected to the movable component of the pulling drive cylinder, and the sliding seat is connected to the plug piece. As a preferred solution of the present application, the sliding seat is driven to move by the pulling drive cylinder to drive the plug piece to move.

[0029] From the above technical solutions, it can be seen that the present invention has the following beneficial effects:

[0030] 1. The present invention provides an automatic separation and assembly device for injection molded products, which can realize the automatic separation and assembly of injection molded products, with high automation degree to improve production efficiency.

[0031] 2. The present invention provides an automatic separation and assembly device for injection molded products, which can detect the tightness of the gap between the box body and the box cover to ensure product quality. Description of the Drawings

[0032] Figure 1 Structural schematic diagram of an injection molded product in an embodiment of the present application Figure 1 ;

[0033] Figure 2 Structural schematic diagram of an injection molded product in an embodiment of the present application Figure 2 (State where the rotating shaft buckle and the rotating shaft are coupled to each other);

[0034] Figure 3 Structural schematic diagram of an injection molded product in an embodiment of the present application Figure 3 (State where the fastening components are coupled to each other);

[0035] Figure 4 Schematic diagram of a structure of an automatic separation and assembly device for an injection molded product in an embodiment of the present application;

[0036] Figure 5 Exploded view of components of an automatic separation and assembly device for an injection molded product in an embodiment of the present application;

[0037] Figure 6 Schematic diagram of a cutting device in an embodiment of the present application (with the front shielding components hidden);

[0038] Figure 7 Exploded view of components of a turning frame in an embodiment of the present application;

[0039] Figure 8 Schematic diagram of an open - cover detector in an embodiment of the present application.

[0040] In the figure:

[0041] 1 - Injection molded product; 11 - Box body; 111 - Locking protrusion; 12 - Box cover; 121 - Lock; 1211 - Open - cover groove; 13 - Runner forming part; 141 - Rotating shaft buckle; 142 - Rotating shaft;

[0042] 2 - Fixed frame; 21 - Horizontal plate; 210 - Limiting groove; 211 - Sliding groove; 212 - Limiting flange; 22 - Limiting plate; 23 - Suction nozzle;

[0043] 3 - Cutting device; 31 - Ultrasonic cutting table; 311 - Protrusion; 312 - Material blocking rod; 313 - Driving protrusion; 32 - First driving component; 321 - First driving cylinder; 322 - Driving block; 3221 - Lifting guiding surface;

[0044] 4 - Assembly device; 41 - Pushing plate; 411 - Limiting pressing plate; 42 - Second driving component; 421 - Second driving cylinder;

[0045] 5 - Cover - closing device; 51 - Swing frame; 511 - Roller body; 512 - Swing arm; 5121 - Driving gear; 52 - Third driving component; 521 - Third driving cylinder; 522 - Rack frame; 5221 - Driving rack;

[0046] 6 - Gap detection device; 61 - Plug; 62 - Pulling driver; 621 - Pulling driving cylinder; 622 - Sliding seat; 63 - Turning frame; 631 - Side plate; 632 - Connecting plate; 6321 - Guide rail; 64 - Winding shaft; 65 - Turning frame driving device; 66 - Winding shaft driver; 67 - Positioning roller; 68 - Pressure sensor;

[0047] 7 - Open - cover detector; 71 - Cylinder; 72 - Driving frame; 73 - Pushing frame; 731 - Pushing head; 74 - Return spring. Detailed implementation mode

[0048] An automatic separation and assembly device for injection molded products, the injection molded product 1 is combined Figures 1 to 3 As shown, it includes a rotationally connected main body, which is a pair of box bodies 11 and box covers 12 arranged horizontally. The box body 11 and the box cover 12 are connected by a runner forming part 13. Each of the box body 11 and the box cover 12 is provided with a rotation connecting member. The rotation connecting member includes a shaft buckle 141 and a shaft 142 respectively arranged on the adjacent sides of a pair of rotationally connected main bodies. A pair of corresponding fastening members are provided on the box body 11 and the box cover 12. Specifically, a locking convex 111 is provided on one side of the box body 11 away from the box cover 12, and a locking buckle 121 corresponding to the locking convex 111 is provided on one side of the box cover 12 away from the box body 11. The locking convex 111 and the locking buckle 121 form a pair of fastening members;

[0049] Combined Figure 4 And Figure 5 As shown, it further includes:

[0050] A fixing frame 2, on which a limiting groove 210 for receiving the bottom of the box body 11 is provided;

[0051] A cutting device 3, which is used to cut off the runner forming part 13;

[0052] An assembling device 4, which is used to move the box cover 12 until the shaft buckle 141 and the shaft 142 are coupled;

[0053] A lid closing device 5, which is used to flip the box cover 12 until a pair of fastening members are coupled.

[0054] Based on the above structure, an automatic separation and assembly device for injection molded products in this embodiment, its working method includes the following steps:

[0055] S1. Place the injection molded product 1 on the fixing frame 2, and the box body 11 is received in the limiting groove 210, and the limiting groove 210 is used to position the injection molded product 1;

[0056] S2. Start the cutting device 3 to cut off the runner forming part 13;

[0057] S4. Start the assembling device 4 to make the box body 11 and the box cover 12 be rotationally connected;

[0058] S5. Start the lid closing device 5 to make the box body 11 and the box cover 12 be closed.

[0059] Therefore, the automatic separation and assembly of the injection molded product 1 can be realized, with high automation degree, so as to improve production efficiency.

[0060] Combined Figure 5 And Figure 6As shown, in this embodiment, the cutting device 3 includes an ultrasonic cutting platform 31, on which a convex portion 311 corresponding to the flow channel forming member 13 is provided, and also includes a first driving assembly 32, which is used to drive the ultrasonic cutting platform 31 to move in the vertical direction. The ultrasonic cutting platform 31 is connected to an ultrasonic generator (not shown), and the convex portion 311 is the end execution end of the ultrasonic cutting platform 31. When the first driving assembly 32 is driven to the convex portion 311 and the flow channel forming member 13 are attached, the ultrasonic generator is started, and the flow channel forming member 13 can be shaken off from between the box body 11 and the box cover 12. In this embodiment, the flow channel forming member 13 is arranged in pairs, and the cutting device 3 is arranged below the flow channel forming member 13. A material blocking rod 312 is provided on the ultrasonic cutting platform 31, and the top of the material blocking rod 312 is higher than the convex portion 311. When the convex portion 311 and the flow channel forming member 13 are attached, the material blocking rod 312 is arranged on the inner side of the flow channel forming member 13. The material blocking rod 312 is used to ensure that the flow channel forming part 13 falls outwards, and prevent the flow channel forming part 13 from falling inwards, which makes it difficult to discharge the material.

[0061] In addition, in the present embodiment, the fixing frame 2 includes a transverse plate 21, the ultrasonic cutting table 31 is slidably connected to the transverse plate 21 in the vertical direction, the transverse plate 21 is provided with a slide groove adapted to the shape of the protrusion 311, a transmission protrusion 313 is provided at the bottom of the ultrasonic cutting table 31, the first driving component 32 includes a first driving cylinder 321 and a transmission block 322, the transmission block 322 is installed on the movable component of the first driving cylinder 321, the fixed component of the first driving cylinder 321 is installed at the bottom of the transverse plate 21, the first driving cylinder 321 is used to drive the transmission block 322 to move laterally, the transmission block 322 is provided with a lifting guide surface 3221 on the side near the transmission protrusion 313, and the transmission protrusion 313 abuts against the upper part of the lifting guide surface 3221. Based on the above structure, in order to save longitudinal space and improve compactness. Specifically, in combination with Figure 6 As shown, the lifting guide surface 3221 includes a high section and a low section arranged laterally, the high section is located above the low section, and an arc transition surface is provided between the high section and the low section. When the first driving cylinder 321 drives the transmission block 322 to move until the transmission convex portion 313 is in contact with the high section, the ultrasonic cutting table 31 rises until the convex portion 311 contacts the flow channel forming part 13, and when the first driving cylinder 321 drives the transmission block 322 to move until it is in contact with the low section, the convex portion 311 drops below the box cover 12 to make room for the box cover 12 to move laterally.

[0062] Combination Figure 4 and 5 As shown, in this embodiment, the assembly device 4 includes a push plate 41 and a second drive assembly 42. The push plate 41 is arranged on the side of the box cover 12 away from the box body 11. The second drive assembly 42 is transmission-connected with the push plate 41 to drive the push plate 41 to move laterally.

[0063] The fixing bracket 2 is provided with a sliding groove 211 for the transverse movement of the storage box cover 12, and the box cover 12 is arranged in the sliding groove 211. The push plate 41 is driven by the second driving assembly 42 to move, so as to push the box cover 12 towards the box body 11 until the rotating shaft buckle 141 and the rotating shaft 142 are coupled. The sliding groove 211 is used to limit the over-position movement of the box cover 12 in the horizontal direction. Specifically, the sliding groove 211 is arranged on the fixing bracket 2. In this embodiment, a limiting pressing plate 411 is extended at the upper end of the push plate 41, and the limiting pressing plate 411 extends out of the front end of the push plate 41 to limit the upward movement of the box cover 12. Before the cutting device 3 is started, the limiting pressing plate 411 moves above the box cover 12. When the runner forming part 13 is in contact with the convex part 311 after the cutting device 3 is started, the limiting pressing plate 411 provides a downward reaction force to ensure the effective contact between the runner forming part 13 and the convex part 311. After the cutting is completed, during the process of the second driving assembly 42 driving the push plate 41 to push the box cover 12, the limiting pressing plate 411 is used to prevent the box cover 12 from moving upward over-position. In this embodiment, the second driving assembly 42 includes a second driving cylinder 421. The cylinder body of the second driving cylinder 421 is installed on the push plate 41, and the telescopic rod of the second driving cylinder 421 is connected to the fixing bracket 2.

[0064] Combined Figure 4 with 5 As shown, in this embodiment, the lid closing device 5 includes a third driving assembly 52 and a swing frame 51 rotatably installed on the fixing bracket 2. The third driving assembly 52 is in transmission connection with the swing frame 51 to drive the swing frame 51 to rotate on the fixing bracket 2. A roller body 511 is provided at the end of the swing frame 51. The roller body 511 extends along the width direction of the box cover 12. During the rotation of the swing frame 51, the roller body 511 is used to push the box cover 12 to rotate on the box body 11. The swing frame 51 is driven by the third driving assembly 52 to flip to push the box cover 12 to rotate on the box body 11. During this process, the roller body 511 is in contact with the box cover 12.

[0065] In this embodiment, the swing frame 51 includes a pair of swing arms 512, the roller body 511 is rotatably mounted between the pair of swing arms 512, the swing arm 512 is rotatably mounted on the fixed frame 2, and a transmission gear 5121 is mounted on the swing arm 512 corresponding to the rotation axis of the swing arm 512; the third driving assembly 52 includes a third driving cylinder 521 and a rack frame 522, the rack frame 522 is connected to the movable assembly of the third driving cylinder 521, and a transmission rack 5221 is arranged on the rack frame 522, and the transmission rack 5221 is meshed with the transmission gear 5121. The rack frame 522 is driven to move by the third driving cylinder 521 to drive the transmission gear 5121 to rotate, so as to realize the rotation of the swing frame 51 to push a pair of buckling components to couple. When the pair of buckling components are coupled, the stroke of the third driving cylinder 521 can be limited, which has the advantage of simple control. In this embodiment, the rotating axis of the swing frame 51 is not concentric with the rotating axis of the box cover 12. Therefore, when the roller 511 pushes the box cover 12 to flip, relative sliding occurs between the roller 511 and the box cover 12. The roller 511 is arranged on the swing arm 512 for rotation to prevent the box cover 12 from being scratched during this process. Preferably, a flexible pad can be coated on the surface of the roller 511.

[0066] Combination Figure 4 , Figure 5 and Figure 7 As shown, in this embodiment, a gap detection device 6 is also included, and the gap detection device 6 includes a plug 61, a pulling driver 62 and a pressure sensor 68. A limit plate 22 is provided on one side of the box body 11, and the detection end of the pressure sensor 68 is arranged on the limit plate 22 near the box body 11; before the cover closing device 5 is started, the plug 61 is arranged on the box body 11, and after the cover closing device 5 is started, the plug 61 is clamped between the box body 11 and the box cover 12; the pulling driver 62 is connected to the plug 61 in a transmission manner, and the pulling driver 62 is used to pull the plug 61 from the box body 11 to the limit plate 22. If the quality of the molded product is poor or the rotating shaft 142 is broken during the assembly process, the gap between the box body 11 and the box cover 12 will not be tight enough when a pair of snap-fitting components are coupled. Therefore, the tightness of the press fit between the box body 11 and the box cover 12 after the box cover 12 is closed on the box body 11 is an important indicator for detecting product quality. Based on the above device, the principle is that after the cover closing device 5 is started, the plug 61 is sandwiched between the box body 11 and the box cover 12. The plug 61 is pulled by the pull driver 62. Due to the limit of the limit plate 22, the box body 11 will not move. The pressure generated by the box body 11 in this process is detected by the pressure sensor 68 to determine whether the box body 11 and the box cover 12 are tightly pressed. If the pressure sensor 68 detects that the pressure is greater than the preset value, it is determined that the box body 11 and the box cover 12 are tightly pressed and the product is qualified. If the pressure sensor 68 detects that the pressure is less than the preset value, it is determined that the product is unqualified. In this embodiment, the thickness of the plug 61 is 0.2 mm.

[0067] In this embodiment, the pulling driver 62 includes a pulling drive cylinder 621 and a sliding seat 622 movably connected to the moving component of the pulling drive cylinder 621. The sliding seat 622 is connected to the plug piece 61. The pulling drive cylinder 621 drives the sliding seat 622 to move so as to drive the plug piece 61 to move.

[0068] In addition, in this embodiment, the gap detection device 6 further includes a turning frame 63 rotatably mounted on the fixed frame 2, and further includes a turning frame drive device 65 drivingly connected to the turning frame 63. The plug piece 61 and the pulling driver 62 are mounted on the turning frame 63. The turning frame drive device 65 is configured to drive the turning frame 63 to rotate so that the turning frame 63 switches between a first posture and a second posture. In the first posture, the plug piece 61 abuts against the upper end of the box body 11. In the second posture, the plug piece 61 is located outside the box body 11. In the initial state, the turning frame 63 is in the second posture, and the box body 11 is placed in the limiting groove 210 to make room for placing the box body 11 in the limiting groove 210. After the box body 11 is placed in the limiting groove 210, the turning frame drive device 65 drives the turning frame 63 to rotate to the first posture, and the plug piece 61 presses against the upper end of the box body 11. The turning frame drive device 65 is a motor, and the turning frame 63 and the turning frame drive device 65 are drivingly connected through a sprocket-chain.

[0069] In this embodiment, a limiting portion is provided on the fixed frame 2. When the turning frame 63 is in the first posture, the turning frame 63 abuts against the limiting portion. The limiting portion is used to position the turning frame 63, and after the pulling driver 62 is started, it ensures that the turning frame 63 stops at the second posture. In this embodiment, the limiting portion is the upper end surface of the cross plate 21.

[0070] In this embodiment, a winding shaft 64 is rotatably provided on the flipping frame 63. The winding shaft 64 is arranged on the side of the box body 11 away from the limiting plate 22. One end of the plug piece 61 is wound around the winding shaft 64 and the other end is connected to the pulling driver 62. A winding shaft driver 66 is installed on the flipping frame 63, and the winding shaft driver 66 is in transmission connection with the winding shaft 64. In this embodiment, the winding shaft 64 can, to a certain extent, store the plug piece 61. After the front plug piece 61 is used a certain number of times, it will be worn, affecting the detection accuracy. At this time, the front plug piece 61 is cut off, and then the unworn rear plug piece 61 is connected to the limiting plate 22. In addition, before the pulling driver 62 is started, the winding shaft driver 66 locks the winding shaft 64 to prevent the winding shaft 64 from rotating; during the process of the pulling driver 62 pulling the plug piece 61, the winding shaft driver 66 is in an unlocked state, and as the plug piece 61 is pulled, the winding shaft 64 rotates in the R direction following it; when the plug piece 61 is reset, the winding shaft driver 66 drives the winding shaft 64 to rotate to pull the sliding seat 622 to reset, and during this process, the pulling drive cylinder 621 is in an ineffective state. In this embodiment, the winding shaft driver 66 is a stepping motor, and the winding shaft driver 66 and the winding shaft 64 are in transmission connection through a synchronous pulley - synchronous belt. In other embodiments, a tension controller can be provided on the winding shaft 64 to prevent the winding shaft 64 from rotating excessively when following the rotation of the plug piece 61. Specifically, the tension controller can be a coil spring (not shown), and the coil spring is arranged between the winding shaft 64 and the flipping frame 63 and is used to apply an elastic force in the direction opposite to the R direction to the winding shaft 64 to ensure the synchronism of the rotation of the winding shaft 64 when it is pulled and rotated.

[0071] In this embodiment, a positioning roller 67 is provided on the flipping frame 63. When the flipping frame 63 is in the first posture, the positioning roller 67 is arranged on the side of the box body 11 away from the limiting plate 22, and the positioning roller 67 is pressed on the plug piece 61. The extending direction of the plug piece 61 between the positioning roller 67 and the sliding seat 622 is parallel to the upper end surface of the box body 11.

[0072] In this embodiment, the flipping frame 63 includes a pair of side plates 631. A pair of connecting plates 632 are fixedly provided between the side plates 631. The connecting plates 632 extend along the sliding direction of the sliding seat 622. A guide rail installation surface is provided on the connecting plates 632. The pair of guide rail installation surfaces are perpendicular to each other, and a guide rail 6321 is installed on the guide rail installation surface. The sliding seat 622 is slidably installed on the guide rail 6321. That is, a pair of vertically arranged connecting plates 632 are slidably connected to the sliding seat 622 to ensure the stability of the connection between the sliding seat 622 and the flipping frame 63 during the flipping and switching process of the flipping frame 63. Specifically, when the flipping frame 63 is in the first posture, one of the connecting plates 632 is below the sliding seat 622.

[0073] Combined Figure 3 As shown, in this embodiment, an opening slot 1211 is provided on the box cover 12;

[0074] It also includes, as shown in Figure 4 , 5 and 8, an open - cover detector 7. The open - cover detector 7 includes an open - cover driver, a transmission frame 72 and a push frame 73. The transmission frame 72 is rotatably installed on the fixed frame 2. The transmission frame 72 is rotatably connected to the push frame 73. At one end of the push frame 73 away from the transmission frame 72, there is a push head 731 adapted to the open - cover groove 1211. When the box cover 12 and the box body 11 are closed, the push head 731 abuts against the inner side of the open - cover groove 1211. The open - cover driver is in transmission connection with the transmission frame 72, and the open - cover driver is used to apply a preset driving force to the transmission frame 72. In this embodiment, the quality of the product also includes the firmness of the coupling of a pair of fastening members when the box cover 12 is closed on the box body 11. If the coupling is not firm, it can be determined that the product is unqualified. Based on the above structure, the transmission frame 72, the push frame 73 and the box cover 12 form three movable links of a four - bar mechanism. By applying a preset first driving force to the transmission frame 72 through the open - cover driver, the push frame 73 conducts the force to the open - cover groove 1211 through the push head 731. If the box cover 12 is opened at this time, it is determined that the fastening members are not firmly coupled and the product is unqualified; otherwise, the product is judged to be qualified. After the detection is completed, the open - cover driver applies a preset second driving force to ensure that the box cover 12 is opened. At this time, the flip - frame driving device 65 can drive the flip - frame 63 to reset from the first posture to the second posture.

[0075] In this embodiment, the push head 731 is cylindrical with its axis parallel to the open - cover groove 1211 and is rotatably installed at the end of the push frame 73.

[0076] In this embodiment, the open - cover driver is a cylinder 71. A pair of relatively telescopic movable components of the cylinder 71 are respectively rotatably connected to the fixed frame 2 and the transmission frame 72. The cylinder 71 is arranged on the fixed frame 2 on the side of the box body 11 away from the box cover 12. By controlling the driving air pressure of the cylinder 71, the stability of the driving force generated by the open - cover driver can be ensured. In this embodiment, the cylinder body of the cylinder 71 is rotatably installed on the fixed frame 2, and the telescopic rod of the cylinder 71 is rotatably connected to the transmission frame 72.

[0077] In this embodiment, it also includes a return spring 74. The return spring 74 is elastically connected to the push frame 73, and there is a limit flange 212 on the fixed frame 2. When the open - cover driver is not activated, the return spring 74 presses the push frame 73 against the limit flange 212. In this embodiment, the limit flange 212 is used to position the push frame 73 in the reset state. In the reset state, the push frame 73 is pressed against the limit flange 212 by the elastic force exerted by the return spring 74 to ensure that the push head 731 on the push frame 73 can be within the open - cover groove 1211. In this embodiment, the limit flange 212 is arranged on the cross - plate 21.

[0078] In this embodiment, the return spring 74 is a tension spring, and the return spring 74 is connected between the push frame 73 and the fixed frame 2.

[0079] Combination Figure 5 As shown, in this embodiment, a suction nozzle 23 is further included, which is arranged on the bottom surface of the limiting groove 210, and the suction nozzle 23 is connected to the vacuum generator (not shown) through an air path. The suction nozzle 23 is used to apply a downward suction force to the box body 11 to prevent the box body 11 from being pushed out of the limiting groove 210 by an external force.

[0080] The technical principles of the present invention are described above in conjunction with specific embodiments. These descriptions are only for explaining the principles of the present invention and cannot be interpreted as limiting the scope of protection of the present invention in any way. Based on the explanations herein, those skilled in the art can associate other specific implementations of the present invention without creative work, and these methods will fall within the scope of protection of the present invention.

Claims

1. An automatic separation and assembly device for injection molded products, characterized in that: The injection molded product (1) comprises a rotating connection body, wherein the rotating connection body is a box body (11) and a box cover (12) arranged in a pair, the box body (11) and the box cover (12) being arranged in a transverse arrangement, the box body (11) and the box cover (12) being connected via a flow channel molding (13), the box body (11) and the box cover (12) each being provided with a rotating connection member, the rotating connection member comprising a rotating shaft buckle (141) and a rotating shaft (142) respectively arranged on adjacent sides of a pair of rotating connection bodies, and the box body (11) and the box cover (12) being provided with a pair of mutually corresponding buckling components; Also includes: A fixing frame (2), wherein the fixing frame (2) is provided with a limiting groove (210) at the bottom of the storage box body (11); A cutting device (3), the cutting device (3) being used to cut off the flow channel forming part (13); An assembly device (4), the assembly device (4) being used to move the box cover (12) to couple the rotating shaft buckle (141) and the rotating shaft (142); A cover closing device (5), the cover closing device (5) being used to flip the box cover (12) to couple with a pair of snap-fit components; The cutting device (3) comprises an ultrasonic cutting table (31), the ultrasonic cutting table (31) being provided with convex portions (311) corresponding one-to-one to the flow channel forming parts (13), and further comprising a first driving component (32), the first driving component (32) being used to drive the ultrasonic cutting table (31) to move in a vertical direction; The flow channel forming parts (13) are arranged in pairs, the cutting device (3) is arranged below the flow channel forming parts (13), the ultrasonic cutting table (31) is provided with a material blocking rod (312), the top end of the material blocking rod (312) is higher than the convex part (311), and when the convex part (311) is in contact with the flow channel forming part (13), the material blocking rod (312) is arranged on the inner side of the flow channel forming part (13); The fixing frame (2) comprises a transverse plate (21), the ultrasonic cutting platform (31) is slidably connected to the transverse plate (21) in a vertical direction, a transmission convex portion (313) is provided at the bottom of the ultrasonic cutting platform (31), the first driving assembly (32) comprises a first driving cylinder (321) and a transmission block (322), the transmission block (322) is mounted on a movable assembly of the first driving cylinder (321), the fixed assembly of the first driving cylinder (321) is mounted at the bottom of the transverse plate (21), the first driving cylinder (321) is used to drive the transmission block (322) to move laterally, a lifting guide surface (3221) is provided on a side of the transmission block (322) near the transmission convex portion (313), and the transmission convex portion (313) abuts against the upper side of the lifting guide surface (3221).

2. The automatic separation and assembly device for an injection molded product according to claim 1, wherein: The assembling device (4) comprises a push plate (41) and a second driving assembly (42), wherein the push plate (41) is arranged on a side of the box cover (12) away from the box body (11), and the second driving assembly (42) is drivingly connected to the push plate (41) for driving the push plate (41) to move laterally; The fixing frame (2) is provided with a sliding groove (211) for accommodating the box cover (12) to move horizontally, and the box cover (12) is arranged in the sliding groove (211).

3. The automatic separation and assembly device for an injection molded product according to claim 2, characterized in that: The upper end of the push plate (41) extends to be provided with a limit pressing plate (411), and the limit pressing plate (411) extends out of the front end of the push plate (41) to limit the upward movement of the box cover (12).

4. An automatic separation and assembly device for an injection molded product according to claim 1, characterized in that: The lid closing device (5) includes a third driving assembly (52) and a swing frame (51) rotatably mounted on the fixed frame (2). The third driving assembly (52) is in transmission connection with the swing frame (51) to drive the swing frame (51) to rotate on the fixed frame (2). A roller body (511) is provided at the end of the swing frame (51), and the roller body (511) extends along the width direction of the box cover (12). During the rotation of the swing frame (51), the roller body (511) is used to push the box cover (12) to rotate on the box body (11).

5. The automatic separation and assembly device for an injection-molded product according to claim 4, characterized in that: The swing frame (51) includes a pair of swing arms (512). The roller body (511) is rotatably mounted between the pair of swing arms (512). The swing arms (512) are rotatably mounted on the fixed frame (2), and a transmission gear (5121) is mounted on the swing arms (512) corresponding to the rotation axis of the swing arms (512). The third driving assembly (52) includes a third driving cylinder (521) and a rack frame (522). The rack frame (522) is connected to the movable assembly of the third driving cylinder (521). A transmission rack (5221) is provided on the rack frame (522), and the transmission rack (5221) is meshed with the transmission gear (5121).

6. The automatic separation and assembly device for an injection molded product according to claim 1, wherein: It further includes a gap detection device (6). The gap detection device (6) includes a plug piece (61), a pulling driver (62), and a pressure sensor (68). A limit plate (22) is provided on one side of the box body (11), and the detection end of the pressure sensor (68) is arranged on the limit plate (22) near the box body (11). Before the lid closing device (5) is started, the plug piece (61) is arranged on the box body (11). After the lid closing device (5) is started, the plug piece (61) is clamped between the box body (11) and the box cover (12). The pulling driver (62) is in transmission connection with the plug piece (61), and the pulling driver (62) is used to pull the plug piece (61) from the box body (11) to the limit plate (22).

7. An automatic separation and assembly device for injection molded products according to claim 6, characterized in that: The pulling driver (62) includes a pulling driving cylinder (621) and a sliding seat (622) connected to the movable assembly of the pulling driving cylinder (621), and the sliding seat (622) is connected to the plug piece (61).

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