Pick-up clamp for injection molding bumper

Abstract

The invention belongs to the technical field of clamp equipment, and particularly relates to an injection molding bumper taking clamp which comprises an extension frame and a vacuum suction cup arranged on the extension frame. The device further comprises an antifouling maintenance mechanism. According to the anti-fouling maintenance mechanism, in the long-term use process of the part taking clamp, through movement of a piston in an enhanced pump pipe, on one hand, the adsorption stability of a vacuum suction cup to a bumper is enhanced by increasing the negative pressure strength, and on the other hand, the adsorption stability of the bumper is improved by discharging airflow between the vacuum suction cup and the bumper. The influence of particle impurities and the like on the adsorption effect is reduced, the adsorption effect of the vacuum suction cup is further enhanced, meanwhile, under the impact action of airflow, the probability that impurities adhere to the vacuum suction cup can be reduced, the vacuum suction cup can be cleaned through the airflow after the impurities adhere to the vacuum suction cup, and then damage of dirt, impurities and the like to the vacuum suction cup is reduced; the service life of the vacuum chuck is prolonged.

Description

Technical Field

[0001] The invention belongs to the technical field of clamp equipment, in particular to an injection-molded bumper taking-out clamp. Background Art

[0002] Injection molding is a common plastic processing technology. Due to its high production efficiency, high molding precision, and ability to achieve complex shapes, the injection molding process is very suitable for mass production of large plastic parts such as automobile bumpers.

[0003] In the field of injection molding production, especially in the manufacturing process of automobile bumpers, the traditional demoulding and taking out methods mainly rely on manual operation. However, manual demoulding has many disadvantages: low efficiency, high labor intensity, easy to cause product damage or deformation due to improper operation, and high temperature molds also bring certain safety hazards to operators. Therefore, automatic demoulding and taking out of bumper injection molding is not only the development trend of modern injection molding production, but also an important means to improve enterprise production efficiency, product quality and competitiveness.

[0004] In order to realize automatic demoulding and picking of the bumper, the relevant technology usually adopts an automated control program to cooperate with a picking fixture. In actual application, the fixture directly contacts the injection molded bumper and clamps the injection molded bumper. Therefore, the selection of the fixture is not only related to the stability of the bumper transportation, but also affects the safety of the bumper when picking up the bumper. For example, a kind of injection molded bumper picking fixture is disclosed in the relevant technology, and the application number is CN2016101105847. This scheme adopts a pulling part and a picking part made of vacuum suction cups. The pulling part can quickly and effectively pull the bumper out from the buckles on both sides of the mold, and then the picking part and the pulling part work at the same time, so that the injection molded bumper can be quickly and completely removed from the injection mold.

[0005] However, after the solution was actually applied to the injection molding production line, it was found that although the presence of the removal fixture made it easier to remove the bumper injection molded parts, after using it for a period of time, it was found that during the demolding and removal process of the bumper injection molded parts, not only was there high temperature on its surface, but there was also precipitation of additives and oil stains, which made the vacuum suction cup easily adhere to impurities and dirt during use, thereby affecting the connection stability of the vacuum suction cup. At the same time, when oil stains adhere to the vacuum suction cup, they will be easily damaged and the service life of the removal fixture will be short due to corrosion, penetration and other reasons.

[0006] In view of this, the present invention proposes an injection molded bumper removal fixture to solve the above technical problems. Summary of the invention

[0007] In order to make up for the deficiencies of the prior art and solve the above-mentioned technical problems, the present invention proposes a fixture for removing injection-molded bumpers.

[0008] The technical solution adopted by the present invention to solve the technical problem is as follows: the injection molded bumper removal fixture of the present invention comprises an extension frame and a vacuum suction cup arranged on the extension frame;

[0009] It also includes an anti-fouling maintenance mechanism, which is installed on the extension frame and is used to perform anti-fouling and maintenance treatment on the vacuum suction cup;

[0010] The anti-fouling maintenance mechanism comprises:

[0011] A reinforced pump pipe is fixedly mounted on the extension frame, and the reinforced pump pipe is conductively connected to the middle of the vacuum suction cup;

[0012] An electric push rod, the extension frame is fixedly mounted with the electric push rod, the electric push rod extends into the enhanced pump pipe, the electric push rod is located in the enhanced pump pipe and is slidably sealed with a piston;

[0013] A gasket and a support spring, wherein a gasket is fixedly installed at the junction of the enhanced pump pipe and the vacuum suction cup, and a support spring is installed on the gasket;

[0014] The boost drainage plug is elastically connected to the gasket through a supporting spring. The boost drainage plug is a T-shaped structure. The boost drainage plug extends into the vacuum suction cup. The boost drainage plug is used to boost and drain the exhaust of the enhanced pump pipe and then spray it onto the vacuum suction cup.

[0015] Preferably, the boost drainage plug is composed of a plug body and a swivel, the plug body is provided with a rotating groove, the rotating groove rotating seal is installed with a swivel, the plug body is provided with a boost flow channel, the boost flow channel connects the inner cavity of the enhanced pump tube with the rotating groove, and the swivel is provided with an injection hole, which is used to inject airflow.

[0016] Preferably, the injection holes include at least one straight injection hole and one oblique injection hole, the straight injection hole extends radially along the vacuum suction cup, and the oblique injection hole extends tangentially along the rotating groove.

[0017] Preferably, a filter ring is fixedly mounted on the inner side of the gasket ring, and the filter ring is slidably connected to the boost drainage plug.

[0018] Preferably, it also includes a film forming component, and the film forming component is used to coat a liquid film on the surface of the vacuum suction cup;

[0019] The biofilm assembly comprises: a rotating core, a biofilm sheet and a liquid pipe;

[0020] A through groove is provided at the center of the boost drainage plug, a rotating core is rotatably installed in the through groove, and the rotating core is fixedly connected to the rotating ring;

[0021] The film-hanging sheet is an elastic metal sheet with a sponge sheet wrapped on the outside, the film-hanging sheet is installed on the rotating core, and the film-hanging sheet extends to the vacuum suction cup;

[0022] A liquid pipe is installed on the rotating core, and the liquid pipe is used to transport the biofilm liquid to the biofilm sheet.

[0023] Preferably, an L-shaped groove is provided on the rotating core, the film hanging sheet is slidably installed in the L-shaped groove, and the liquid pipe is conductively connected to the L-shaped groove;

[0024] A transmission groove is provided in the rotating core, and symmetrically arranged conveying rollers are rotatably installed in the transmission groove, and the film hanging sheet extends between the two conveying rollers;

[0025] A coil spring is fixedly installed on one side of the conveying roller, and an elastic belt is fixedly installed on the other side. The coil spring is fixedly connected to the rotating core, and the elastic belt extends and is fixed on the piston.

[0026] Preferably, a guide groove is provided on the rotating core, one end of the liquid pipe is rotatably installed in the guide groove, the guide groove is conductively connected to the L-shaped groove, a baffle ball is rotatably sealed at the opening of the guide groove, the surface of the baffle ball is provided with evenly distributed grooves, and the baffle ball is in frictional contact with the film hanging sheet.

[0027] Preferably, the baffle ball is rotatably connected to the guide groove via a one-way bearing.

[0028] Preferably, a conical plug is fixedly installed at the bottom end of the L-shaped groove, the conical plug is made of elastic rubber material, the film hanging sheet passes through the conical plug, and one end of the small opening of the conical plug faces the vacuum suction cup.

[0029] Preferably, a control cavity is opened on the rotating core, a control rod is elastically installed in the control cavity through an abutment spring, the control cavity is conductively connected with the guide groove, a diaphragm is fixedly installed in the control cavity, the diaphragm is located on the movement path of the control rod, and the control rod blocks the guide groove by pushing the diaphragm.

[0030] The beneficial effects of the present invention are as follows:

[0031] 1. The injection molded bumper removal fixture of the present invention is provided with an anti-fouling maintenance mechanism. During the long-term use of the removal fixture, the movement of the piston in the enhanced pump tube can, on the one hand, increase the negative pressure strength to enhance the adsorption stability of the vacuum suction cup on the bumper. On the other hand, the airflow is discharged between the vacuum suction cup and the bumper to reduce the influence of particulate impurities on the adsorption effect, thereby further enhancing the adsorption effect of the vacuum suction cup. At the same time, under the impact of the airflow, the probability of impurities adhering to the vacuum suction cup can be reduced, and after impurities are adhered to the vacuum suction cup, the airflow can be used to clean it, thereby reducing the damage to the vacuum suction cup caused by dirt, impurities, etc., and extending the service life of the vacuum suction cup.

[0032] 2. The injection molded bumper removal fixture described in the present invention pressurizes and guides the airflow through a pressurized drainage plug. On the one hand, the reaction force of the airflow injection is used to cause the swivel to rotate, thereby making the airflow impact on the vacuum suction cup more comprehensive, thereby enhancing the cleaning effect of the airflow on the vacuum suction cup. On the other hand, the change in airflow pressure is used to increase the impact force of the airflow on the vacuum suction cup, thereby further enhancing the cleaning effect of the vacuum suction cup. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The present invention will be further described below in conjunction with the accompanying drawings.

[0034] Figure 1 It is an overall stereogram of the present invention;

[0035] Figure 2 It is a three-dimensional diagram of the assembly of the anti-fouling maintenance mechanism, the extension frame, and the vacuum suction cup;

[0036] Figure 3 It is a structural diagram of the anti-fouling maintenance mechanism;

[0037] Figure 4 It is a stereoscopic diagram of the assembly of the pressurized drainage plug and the membrane assembly;

[0038] Figure 5 It is a three-dimensional diagram of the film-hanging assembly;

[0039] Figure 6 This is a diagram of the internal structure of the boost drain plug;

[0040] Figure 7 It is a schematic diagram of the distribution of the injection holes on the swivel;

[0041] Figure 8 is a cross-sectional view of the pressurized drainage plug and the biofilm assembly;

[0042] Fig. 9 yes Figure 8 A partial enlarged view of the middle A;

[0043] Fig.10 yes Figure 8 A partial enlarged view of point B in the middle;

[0044] Fig.11 yes Figure 8 A partial enlarged view of point C in the middle;

[0045] In the figure: 1. extension frame; 11. vacuum suction cup; 2. enhanced pump tube; 21. electric push rod; 22. gasket; 23. support spring; 24. plug body; 25. swivel; 26. rotating groove; 27. booster flow channel; 28. injection hole; 3. filter ring; 4. rotating core; 41. film hanging sheet; 42. through groove; 43. liquid pipe; 5. L-shaped groove; 51. transmission groove; 52. conveying roller; 53. coil spring; 54. elastic belt; 6. guide groove; 61. flow-blocking ball; 62. conical plug; 63. control chamber; 64. control rod; 65. abutment spring; 66. diaphragm. DETAILED DESCRIPTION

[0046] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0047] like Figures 1 to 11 As shown, the injection molded bumper removal fixture of the present invention comprises an extension frame 1 and a vacuum suction cup 11 arranged on the extension frame 1;

[0048] It also includes an anti-fouling maintenance mechanism, which is installed on the extension frame 1 and is used to perform anti-fouling and maintenance treatment on the vacuum suction cup 11;

[0049] The anti-fouling maintenance mechanism comprises:

[0050] A reinforced pump tube 2 is fixedly mounted on the extension frame 1, and the reinforced pump tube 2 is conductively connected to the middle of the vacuum suction cup 11;

[0051] An electric push rod 21 is fixedly mounted on the extension frame 1, and the electric push rod 21 extends into the enhanced pump tube 2. The electric push rod 21 is located in the enhanced pump tube 2 and is slidably and sealably mounted with a piston;

[0052] A gasket 22 and a support spring 23, wherein a gasket 22 is fixedly installed at the junction of the enhanced pump tube 2 and the vacuum suction cup 11, and a support spring 23 is installed on the gasket 22;

[0053] The boost drainage plug is elastically connected to the gasket 22 through a support spring 23. The boost drainage plug is a T-shaped structure. The boost drainage plug extends into the vacuum suction cup 11. The boost drainage plug is used to boost and drain the exhaust of the enhancement pump pipe 2 and then spray it onto the vacuum suction cup 11.

[0054] When an intelligent control system is used to control the picking fixture to demold and transport the bumper injection molded parts for a long time, in order to reduce the rate at which dirt, additives, etc. cause irreversible damage to the vacuum suction cup 11 and extend the service life of the vacuum suction cup 11, an anti-fouling maintenance mechanism is provided in the present invention to perform anti-fouling and maintenance treatments on the vacuum suction cup 11, thereby reducing the rate at which the vacuum suction cup 11 is damaged due to reagent corrosion, oil infiltration, etc.

[0055] Specifically, after the injection molding equipment is turned on, there are mold release agents, raw material impurities, lubricating oil and other dirt on the surface of the injection-molded bumper. When the fixture is controlled by the intelligent control system, it adsorbs to the surface of the bumper injection molded part and contacts the bumper injection molded part through the vacuum suction cup 11. Therefore, after the transportation is completed, dirt will remain on the surface of the vacuum tube suction cup. The vacuum suction cup 11 is mostly made of silicone, rubber and other materials. The presence of dirt may not only corrode the vacuum suction cup 11, but the presence of oil will also penetrate into the rubber, causing damage to the vacuum suction cup 11. At the same time, the presence of granular impurities will also reduce the adsorption performance of the vacuum suction cup 11. In the present invention, the pick-up fixture includes an extension frame 1 and a vacuum suction cup 11 on the extension frame 1. The extension frame 1 is installed on a robot arm and other equipment, and the vacuum suction cup 11 is installed on the extension frame 1. When the picking fixture picks up the bumper, the robot arm drives the picking fixture to move above the bumper and drives the fixture to gradually move closer to the bumper. During this process, the vacuum suction cup 11 is attached to the surface of the bumper. Under the action of pressure, the air in the vacuum suction cup 11 is discharged, and at the same time, the electric push rod 21 installed on the extension frame 1 is started, and the output end of the electric push rod 21 pushes the piston to move in the enhanced pump tube 2. With the continuous movement of the piston, the volume of the chamber of the enhanced pump tube 2 close to the vacuum suction cup 11 is gradually reduced, causing the pressure in the enhanced pump tube 2 to increase. Under the action of pressure, the air pushes the booster drainage plug toward the gasket 22. As the gasket 22 and the booster The supporting spring 23 between the boost drainage plugs is gradually compressed, and the gasket 22 fits with the boost drainage plug, so that the air can only flow into the boost drainage plug, and under the guidance of the boost drainage plug, it is sprayed between the vacuum suction cup 11 and the bumper. Under the impact of the airflow, the granular impurities with a low degree of fixation on the surface of the bumper are discharged, while the liquid oil and the like have a tendency to move away from the center of the vacuum suction cup 11. With the continuous movement of the piston, when the piston fits with the boost drainage plug, the electric push rod 21 contracts in the opposite direction under the control of a preset program, so that the piston moves away from the boost drainage plug. At this time, the chamber of the boost pump tube 2 close to the vacuum suction cup 11 gradually increases, and a negative pressure is formed. However, due to the vacuum suction cup 1 1 is attached to the surface of the bumper, so that the outside air cannot enter the enhanced pump tube 2, thereby effectively enhancing the adsorption strength between the vacuum suction cup 11 and the bumper. When the transportation is completed, the electric push rod 21 is extended again, causing the negative pressure in the vacuum suction cup 11 to gradually increase, thereby causing the vacuum suction cup 11 to separate from the bumper. When the vacuum suction cup 11 is in the gap between adsorption and removal, the pre-set program controls the electric push rod 21 to perform repeated telescopic movements. During this process, the piston reciprocates in the booster pump tube. When the electric push rod 21 is shortened, air flows from the outside into the vacuum suction cup 11 and pushes the booster drainage plug away from the gasket 22. The air flows into the enhanced pump tube 2. When the electric push rod 21 is extended, the air pushes the booster drainage plug to block the opening of the gasket 22.The airflow is pressurized and guided by the pressurized drainage plug and then sprayed on the vacuum suction cup 11. The airflow impacts the vacuum suction cup 11, thereby causing dirt and impurities adhering to the wall of the vacuum suction cup 11 to fall off.

[0056] The present invention provides an anti-fouling maintenance mechanism. During the long-term use of the pickup fixture, the piston moves in the enhanced pump tube 2. On the one hand, the adsorption stability of the vacuum suction cup 11 on the bumper is enhanced by increasing the negative pressure strength. On the other hand, the airflow is discharged between the vacuum suction cup 11 and the bumper to reduce the influence of particulate impurities on the adsorption effect, thereby further enhancing the adsorption effect of the vacuum suction cup 11. At the same time, under the impact of the airflow, the probability of impurities adhering to the vacuum suction cup 11 can be reduced, and after impurities are adhered to the vacuum suction cup 11, the airflow can be used to clean it, thereby reducing the damage to the vacuum suction cup 11 caused by dirt, impurities, etc., and extending the service life of the vacuum suction cup 11.

[0057] As a preferred embodiment of the present invention, the boost drainage plug is composed of a plug body 24 and a swivel 25, the plug body 24 is provided with a rotating groove 26, the rotating groove 26 is rotatably sealed with a swivel 25, the plug body 24 is provided with a boost flow channel 27, the boost flow channel 27 connects the inner cavity of the enhanced pump tube 2 with the rotating groove 26, and the swivel 25 is provided with a spray hole 28, the spray hole 28 is used to spray airflow.

[0058] The spray holes 28 at least include a straight spray hole and an oblique spray hole. The straight spray hole extends radially along the vacuum suction cup 11 , and the oblique spray hole extends tangentially along the rotating groove 26 .

[0059] A filter ring 3 is fixedly mounted inside the gasket ring 22 , and the filter ring 3 is slidably connected to the boost drainage plug.

[0060] In the present invention, the boost drainage plug is composed of a plug body 24 and a rotating ring 25. When the piston moves toward the vacuum suction cup 11, as the air pressure in the enhanced pump tube 2 increases, the air pressure pushes the boost drainage plug to fit the gasket ring 22. At this time, the airflow can only flow into the boost flow channel 27. In the present invention, the boost flow channel 27 has a larger diameter close to the piston end and gradually decreases in diameter away from the piston end. After the airflow enters the boost flow channel 27, as the diameter of the boost flow channel 27 decreases, the airflow velocity will increase. When the airflow enters the rotating groove 26, it is ejected outward through the injection hole 28 on the rotating ring 25. Since the injection hole 28 includes at least a straight injection hole and an inclined injection hole, when the piston movement rate is constant, the fewer the injection holes 28 are, the greater the airflow injection intensity. In this embodiment, the straight injection hole and the inclined injection hole are There are two spray holes, which are evenly distributed around the rotating ring 25. When the airflow is sprayed onto the vacuum suction cup 11 from the oblique spray hole, the rotating ring 25 rotates around the rotating groove 26 under the reaction force of the airflow. At the same time, the airflow sprayed through the straight spray hole also acts on the vacuum suction cup 11 from left to right. After the airflows sprayed from the straight spray hole and the oblique spray hole act on the vacuum suction cup 11 at different angles, the surface of the vacuum suction cup 11 is effectively cleaned under the impact of the airflow, causing the dirt attached to the vacuum suction cup 11 to fall off. When the piston moves away from the vacuum suction cup 11, the airflow pushes the boost drainage plug away from the gasket 22, and the airflow flows through the gap between the boost drainage plug and the gasket 22, and is filtered by the filter ring 3, so that the air is cleaned to a certain extent, thereby reducing the probability of impurities entering the enhanced pump pipe 2.

[0061] The present invention uses a pressurized drainage plug to pressurize and guide the airflow. On the one hand, the reaction force of the airflow injection is used to cause the swivel 25 to rotate, so that the airflow impacts the vacuum suction cup 11 more comprehensively, thereby enhancing the cleaning effect of the airflow on the vacuum suction cup 11. On the other hand, the change in airflow pressure is used to increase the impact force of the airflow on the vacuum suction cup 11, further enhancing the cleaning effect of the vacuum suction cup 11.

[0062] As a preferred embodiment of the present invention, it also includes a film-forming component, and the film-forming component is used to coat a liquid film on the surface of the vacuum suction cup 11;

[0063] The biofilm assembly comprises: a rotating core 4, a biofilm sheet 41 and a liquid pipe 43;

[0064] A through groove 42 is provided at the center of the boost and drainage plug, a rotating core 4 is rotatably installed in the through groove 42, and the rotating core 4 is fixedly connected to the rotating ring 25;

[0065] The film-hanging sheet 41 is an elastic metal sheet with a sponge sheet wrapped on the outside. The film-hanging sheet 41 is installed on the rotating core 4 and extends to the vacuum suction cup 11.

[0066] A liquid pipe 43 is installed on the rotating core 4 , and the liquid pipe 43 is used to transport the biofilm forming liquid to the biofilm forming sheet 41 .

[0067] After the pick-up fixture moves closer to the bumper and the vacuum suction cup 11 is attached to the bumper, with the movement of the piston, the air flow is ejected through the injection hole 28 on the rotating ring 25. Under the action of the reaction force, the rotating ring 25 rotates and synchronously drives the rotating core 4 to rotate. The film-hanging piece 41 installed on the rotating core 4 rotates synchronously. During the rotation process, the film-hanging piece 41 contacts the vacuum suction cup 11 and the bumper at the same time. On the one hand, during the rotation process, the rotation of the film-hanging piece 41 causes a gap to be formed between the vacuum suction cup 11 and the bumper, and with the action of air pressure, an air flow channel connected to the outside is formed, which enhances the effect of discharging impurities between the bumper and the vacuum suction cup 11. At the same time, the liquid film The existence of the liquid film can also cool the bumper, thereby slowing down the rate at which the temperature on the bumper is transferred to the vacuum suction cup 11. On the other hand, since the liquid pipe 43 transports the film-hanging liquid to the film-hanging sheet 41, during the rotation of the film-hanging sheet 41, the liquid remains on the vacuum suction cup 11 and the bumper, and then the gap between the vacuum suction cup 11 and the bumper is filled with the liquid. Combined with the subsequent negative pressure traction effect, the connection effect between the vacuum suction cup 11 and the bumper is enhanced. At the same time, the existence of the liquid film can also effectively reduce the probability of oil stains and the like directly adhering to the vacuum suction cup 11. In the subsequent airflow cleaning, the effect of removing impurities such as oil stains adhering to the vacuum suction cup 11 is enhanced.

[0068] It should be noted that, in this embodiment, the biofilm forming liquid is 0.1%-0.2% soapy water. In other embodiments of the present invention, the biofilm forming liquid may also be pure water or other aqueous solutions.

[0069] The rotating core 4 is provided with an L-shaped groove 5, the film hanging sheet 41 is slidably installed in the L-shaped groove 5, and the liquid pipe 43 is conductively connected to the L-shaped groove 5;

[0070] A transmission groove 51 is provided in the rotating core 4, and symmetrically arranged conveying rollers 52 are rotatably installed in the transmission groove 51, and the film hanging sheet 41 extends between the two conveying rollers 52;

[0071] The conveying roller 52 has a coil spring 53 fixedly mounted on one side and an elastic band 54 fixedly mounted on the other side. The coil spring 53 is fixedly connected to the rotating core 4, and the elastic band 54 extends and is fixed on the piston.

[0072] In order to prevent the film-hanging sheet 41 from affecting the sealing effect of the vacuum suction cup 11 during the vacuum adsorption process, in the present invention, when the piston moves away from the vacuum suction cup 11, as the piston moves, the elastic belt 54 wound on one side of the conveying roller 52 in the initial state gradually straightens and pulls the conveying roller 52 to rotate. When the conveying roller 52 rotates, the film-hanging sheet 41 clamped between the conveying rollers 52 is conveyed upward, so that the film-hanging sheet 41 gradually shrinks into the L-shaped groove 5. At this time, the coil spring 53 is deformed, and then when the piston moves toward the vacuum suction cup 11, as the piston and the plug body 24 gradually approach each other, the elastic belt 54 is gradually stretched. The belt 54 gradually relaxes, and under the elastic action of the coil spring 53, the conveying roller 52 rotates in the opposite direction, thereby pushing the film-hanging sheet 41 to move outward along the L-shaped groove 5. After contacting the vacuum suction cup 11, the film-hanging sheet 41 extends radially along the vacuum suction cup 11 under the obstruction of the vacuum suction cup 11, thereby realizing the telescopic storage of the film-hanging sheet 41. During the air flow injection process, the film-hanging sheet 41 fits the vacuum suction cup 11, and can clean and hang film on the vacuum suction cup 11. During vacuum adsorption, the film-hanging sheet 41 is stored, which can effectively avoid the influence of the film-hanging sheet 41 on the adsorption effect of the vacuum suction cup 11.

[0073] A guide groove 6 is provided on the rotating core 4, one end of the liquid pipe 43 is rotatably installed in the guide groove 6, the guide groove 6 is conductively connected to the L-shaped groove 5, a baffle ball 61 is rotatably sealed and installed at the opening of the guide groove 6, the surface of the baffle ball 61 is provided with evenly distributed grooves, and the baffle ball 61 is in frictional contact with the film hanging sheet 41.

[0074] The baffle ball 61 is rotatably connected to the guide groove 6 via a one-way bearing.

[0075] In order to control the outflow of the biofilm liquid more orderly, in actual application, the liquid pipe 43 of the present invention is rotatably sealed and connected to the guide groove 6, and the biofilm liquid in the liquid pipe 43 flows directly into the guide groove 6, and then flows along the guide groove 6 under the action of gravity, and is finally blocked by the blocking ball 61. When the biofilm sheet 41 moves toward the outside of the L-shaped groove 5, under the action of friction, the biofilm sheet 41 drives the blocking ball 61 to rotate, and the biofilm liquid flows into the L-shaped groove 5 through the groove on the blocking ball 61, and is absorbed by the biofilm sheet 41, replenishing the biofilm liquid for the biofilm sheet 41. At the same time, since the blocking ball 61 rotates through the one-way bearing, when the biofilm sheet 41 shrinks back into the L-shaped groove 5, the blocking ball 61 cannot rotate, thereby blocking the guide groove 6.

[0076] A conical plug 62 is fixedly mounted at the bottom end of the L-shaped groove 5 . The conical plug 62 is made of elastic rubber material. The film hanging sheet 41 passes through the conical plug 62 . One end of the small opening of the conical plug 62 faces the vacuum suction cup 11 .

[0077] When the film sheet 41 is reversely recovered, the presence of the conical plug 62 scrapes the film sheet 41, so that the film liquid contained on the film sheet 41 is separated from the film sheet 41 under the action of the scraping force and discharged outward along the L-shaped groove 5. In actual application, when the retrieval fixture is in a cleaning state, the retrieval fixture is controlled to spray paint and clean the film in a specific area, so that the discharged and contaminated film liquid can be discharged to the designated area.

[0078] A control chamber 63 is provided on the rotating core 4, and a control rod 64 is elastically installed in the control chamber 63 through an abutment spring 65. The control chamber 63 is conductively connected to the guide groove 6. A diaphragm 66 is fixedly installed in the control chamber 63. The diaphragm 66 is located on the movement path of the control rod 64. The control rod 64 blocks the guide groove 6 by pushing the diaphragm 66.

[0079] When the object removal fixture is performing adsorption and removal, in order to prevent the film-forming liquid from dripping, after the vacuum suction cup 11 contacts the bumper, as the vacuum suction cup 11 gradually fits, the control rod 64 contacts the bumper and causes the control rod 64 to be pushed. The control rod 64 pushes the diaphragm 66 through the control chamber 63, causing the diaphragm 66 to block the guide groove 6. Subsequently, when the piston moves downward and discharges the airflow, the film-forming sheet 41 moves toward the outside of the L-shaped groove 5. At this time, since the guide groove 6 is blocked, although the blocking ball 61 can rotate, the content of the film-forming liquid discharged into the L-shaped groove 5 is extremely limited. Therefore, when the film-forming sheet 41 rotates in the gap between the vacuum suction cup 11 and the bumper, it can only play a slightly moistening role. At the same time, when the film-forming sheet 41 rotates in the gap between the vacuum suction cup 11 and the bumper, it can only play a slightly moistening role. During the process of reverse contraction of 41 into the L-shaped groove 5, due to the small amount of liquid in the film-hanging sheet 41, the film-hanging liquid can be effectively prevented from dripping under the scraping of the conical plug 62. When the picking fixture is not picking up items, under the action of the abutment spring 65, the diaphragm 66 does not block the guide groove 6. Therefore, when the film-hanging sheet 41 moves toward the outside of the L-shaped groove 5, the groove on the baffle ball 61 can continuously transfer the film-hanging liquid to the film-hanging sheet 41, making the film-hanging sheet 41 relatively moist. When the film-hanging sheet 41 rotates, it can not only enhance the cleaning effect of the vacuum suction cup 11, but also attach a layer of relatively obvious water marks to the vacuum suction cup 11, thereby reducing the aging rate of the vacuum suction cup 11 in the high temperature environment formed by injection molding.

[0080] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A plastic injection bumper removal fixture, comprising an extension frame (1) and a vacuum suction cup (11) arranged on the extension frame (1); Features: It also includes an anti-fouling maintenance mechanism, which is installed on the extension frame (1) and is used to perform anti-fouling and maintenance treatment on the vacuum suction cup (11); The anti-fouling maintenance mechanism comprises: A reinforced pump tube (2), the extension frame (1) is fixedly mounted with the reinforced pump tube (2), and the reinforced pump tube (2) is conductively connected to the middle of the vacuum suction cup (11); An electric push rod (21), the extension frame (1) is fixedly mounted with the electric push rod (21), the electric push rod (21) extends into the enhanced pump pipe (2), the electric push rod (21) is located in the enhanced pump pipe (2) and is slidably and sealably mounted with a piston; A gasket (22) and a support spring (23), wherein a gasket (22) is fixedly installed at the junction of the enhanced pump tube (2) and the vacuum suction cup (11), and a support spring (23) is installed on the gasket (22); A booster drainage plug, wherein the booster drainage plug is elastically connected to the gasket (22) via a support spring (23), the booster drainage plug is a T-shaped structure, the booster drainage plug extends into the vacuum suction cup (11), and the booster drainage plug is used to boost and drain the exhaust gas of the booster pump pipe (2) and then spray it onto the vacuum suction cup (11).

2. The injection molded bumper removal fixture according to claim 1, characterized in that: The boost drainage plug is composed of a plug body (24) and a rotating ring (25); the plug body (24) is provided with a rotating groove (26); the rotating groove (26) is rotationally sealed with a rotating ring (25); the plug body (24) is provided with a boost flow channel (27); the boost flow channel (27) conducts and connects the inner cavity of the boost pump pipe (2) with the rotating groove (26); the rotating ring (25) is provided with a spray hole (28); the spray hole (28) is used to spray airflow.

3. The injection molded bumper removal fixture according to claim 2, characterized in that: The spray holes (28) include at least a straight spray hole and an oblique spray hole, the straight spray hole extends radially along the vacuum suction cup (11), and the oblique spray hole extends tangentially along the rotating groove (26).

4. The injection molded bumper removal fixture according to claim 3, characterized in that: A filter ring (3) is fixedly mounted on the inner side of the gasket ring (22), and the filter ring (3) is slidably connected to the boost drainage plug.

5. The injection molded bumper removal fixture according to claim 2, characterized in that: It also includes a film forming component, which is used to coat a liquid film on the surface of the vacuum suction cup (11); The biofilm forming assembly comprises: a rotating core (4), a biofilm forming sheet (41) and a liquid pipe (43); A through groove (42) is provided at the center of the boost and drainage plug, a rotating core (4) is rotatably installed in the through groove (42), and the rotating core (4) is fixedly connected to the rotating ring (25); The film-hanging sheet (41) is an elastic metal sheet with a sponge sheet wrapped on the outside, and the film-hanging sheet (41) is installed on the rotating core (4), and the film-hanging sheet (41) extends to the vacuum suction cup (11); A liquid pipe (43) is installed on the rotating core (4), and the liquid pipe (43) is used to transport biofilm liquid to the biofilm sheet (41).

6. The injection molded bumper removal fixture according to claim 5, characterized in that: The rotating core (4) is provided with an L-shaped groove (5), the film hanging sheet (41) is slidably installed in the L-shaped groove (5), and the liquid pipe (43) is conductively connected to the L-shaped groove (5); A transmission groove (51) is provided in the rotating core (4), and symmetrically arranged conveying rollers (52) are rotatably installed in the transmission groove (51), and the film hanging sheet (41) extends between the two conveying rollers (52); A coil spring (53) is fixedly mounted on one side of the conveying roller (52), and an elastic band (54) is fixedly mounted on the other side; the coil spring (53) is fixedly connected to the rotating core (4), and the elastic band (54) extends and is fixed on the piston.

7. The injection molded bumper removal fixture according to claim 6, characterized in that: The rotating core (4) is provided with a flow guide groove (6), one end of the liquid pipe (43) is rotatably mounted in the flow guide groove (6), the flow guide groove (6) is conductively connected to the L-shaped groove (5), a flow blocking ball (61) is rotatably sealed and mounted at the opening of the flow guide groove (6), the surface of the flow blocking ball (61) is provided with evenly distributed grooves, and the flow blocking ball (61) is in frictional contact with the film hanging sheet (41).

8. The injection molded bumper removal fixture according to claim 7, characterized in that: The flow-blocking ball (61) is rotatably connected to the flow guide groove (6) via a one-way bearing.

9. The injection molded bumper removal fixture according to claim 7, characterized in that: A conical plug (62) is fixedly mounted at the bottom end of the L-shaped groove (5). The conical plug (62) is made of elastic rubber material. The film hanging sheet (41) passes through the conical plug (62). One end of the small opening of the conical plug (62) faces the vacuum suction cup (11).

10. The injection molded bumper removal fixture according to claim 9, characterized in that: The rotating core (4) is provided with a control chamber (63), a control rod (64) is elastically installed in the control chamber (63) via an abutting spring (65), the control chamber (63) is conductively connected to the guide groove (6), a diaphragm (66) is fixedly installed in the control chamber (63), the diaphragm (66) is located on the movement path of the control rod (64), and the control rod (64) blocks the guide groove (6) by pushing the diaphragm (66).

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