Forming die for vacuum cup accessories

Abstract

The invention relates to the technical field of plastic recycling, in particular to a vacuum cup accessory forming mold which comprises a workbench, four electric hydraulic rods are installed at the upper end of the workbench, output shafts of the four electric hydraulic rods are jointly and fixedly connected with an upper convex plate mold, and the lower end of the upper convex plate mold is slidably connected with a lower gravure mold. The lower end of the lower gravure die is fixedly connected with the workbench, an assembling groove is formed in the inner side of the lower gravure die in a clamped mode, a pop-up mechanism used for popping up accessories is arranged on the inner side of the assembling groove, and a material taking mechanism used for processing the formed accessories is arranged at the upper end of the lower gravure die. A flexible gasket and a gradually-changed tripping structure are arranged through the pop-up mechanism, so that the situation that a recycled material buckle is brittle and fractured due to hard ejection is avoided, and the short plate with insufficient toughness of the recycled material is adapted; the problem of local adhesion caused by uneven components of recycled material products is solved, lossless demolding is achieved, and the forming loss of the recycled material products is reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of plastic recycling devices, in particular to a forming die for a thermos cup accessory. BACKGROUND

[0002] In the scenarios of gyms, outdoor frisbees and the like, mobile phones are often placed on the ground due to the lack of a place to put them, and are easy to be damaged or lost. Therefore, a plastic mobile phone support that can be clamped on the outside of a thermos cup has become a necessity. Under the trend of circular economy, the use of recycled polypropylene, polyethylene and other waste plastics for the manufacture of such supports not only reduces costs but also reduces pollution, and is an important application direction in the field of waste plastic recycling and forming.

[0003] However, recycled plastics have defects such as large melt flowability fluctuation, insufficient toughness and easy impurities, and existing injection molding dies are mostly designed for virgin plastics or general parts, and cannot adapt to the characteristics of the support and the shortcomings of recycled materials: insufficient synchronous mold closing precision leads to uneven support wall thickness, affecting the clamping fit; hard top demolding often causes recycled material buckle fracture; lack of special detection mechanism, unable to identify defects such as holes and bubbles brought by recycled materials; the demolding and material taking processes are dispersed, low in efficiency and easy to cause product damage. Therefore, we propose a forming die for a thermos cup accessory. SUMMARY

[0004] In order to make up for the shortcomings of the prior art and solve at least one technical problem proposed in the background art, the application proposes a forming die for a thermos cup accessory.

[0005] The technical scheme adopted by the application to solve its technical problems is: a forming die for a thermos cup accessory, comprising a workbench, the upper end of the workbench is provided with four electric hydraulic rods, the output shafts of the four electric hydraulic rods are fixedly connected together, an upper convex plate die is fixedly connected to the output shafts, an injection pipe is arranged on the inner side of the upper convex plate die, a lower concave plate die is slidably connected to the lower end of the upper convex plate die, the lower end of the lower concave plate die is fixedly connected to the workbench, an assembly groove is arranged on the inner side of the lower concave plate die, a pop-up mechanism for popping out accessories is arranged on the inner side of the assembly groove, three clamping grooves are formed in the inner wall of the assembly groove, a limiting clamping strip is arranged on the inner wall of the assembly groove, and a material taking mechanism for processing formed accessories is arranged on the upper end of the lower concave plate die.

[0006] Preferably, the pop-up mechanism comprises a cylinder mounted at the lower end of the lower recessed die, the output shaft of the cylinder penetrates the lower recessed die, the output shaft of the cylinder is slidingly connected with a bottom plate, the bottom plate is fixedly connected to the inner side of the assembly groove, the output shaft of the cylinder is fixedly connected with a sleeve, the outer side of the sleeve is rotatably connected with two first connecting rods which are symmetrical to each other through pivots, the rear end of the first connecting rod is rotatably connected with a second connecting rod through a pivot, the other end of the second connecting rod is rotatably connected with the bottom plate through a pivot, the front end of the first connecting rod is rotatably connected with a third connecting rod through a pivot, the upper end of the third connecting rod is rotatably connected with an upper pushing block through a pivot, the upper ends of the two upper pushing blocks are fixedly connected with a top plate, and the top plate is slidingly connected to the inner side of the assembly groove.

[0007] Preferably, the same side of the third connecting rod and the second connecting rod is commonly fixedly connected with a flexible gasket.

[0008] Preferably, the outer side of the top plate is rotatably connected with a fourth connecting rod through a pivot, the outer side of the fourth connecting rod is rotatably connected with a fixed block at a position close to the middle, the fixed block is fixedly connected to the inner side of the assembly groove, the front end of the fixed block is rotatably connected with a lower pushing block through a pivot, the front end of the lower pushing block is fixedly connected with a second L-shaped baffle, the second L-shaped baffle is slidingly connected to the inner side of the limiting clamping strip, the inner side of the second L-shaped baffle is slidingly connected with a pushing plate, the rear end of the second L-shaped baffle is provided with a first electric push rod, the output shaft of the first electric push rod is fixedly connected with the pushing plate, and the pushing plate is slidingly connected to the inner side of the clamping groove.

[0009] Preferably, the pop-up mechanism further comprises three second electric push rods, the second electric push rods are arranged on the inner side of the lower recessed die, the output shafts of the second electric push rods penetrate the lower recessed die, the output shafts of the second electric push rods are fixedly connected with limiting blocks, and the limiting blocks are aligned with the clamping grooves.

[0010] Preferably, the taking mechanism comprises a moving assembly for taking out the finished accessory, and the taking mechanism comprises a detection assembly for detecting the finished accessory.

[0011] Preferably, the moving assembly comprises two clamping tooth tracks, the two clamping tooth tracks are fixedly connected to the two sides of the lower recessed die respectively, the outer side of the clamping tooth track is slidingly connected with a moving block, one side of the moving block is provided with a first motor, the output shaft of the first motor is fixedly connected with a first gear, and the outer side of the first gear is meshingly connected with the clamping teeth of the clamping tooth track.

[0012] Preferably, the outer side of the moving block is provided with third electric push rods, the output shafts of the two third electric push rods are fixedly connected with a mounting plate, the lower end of the mounting plate is fixedly connected with two slide rails, and the inner side of the slide rails is provided with two vacuum suction cups.

[0013] Preferably, the detection assembly comprises a support shaft fixedly connected with the mounting plate, a slide groove support fixedly connected with the outer side of the support shaft, a plurality of slide grooves in the slide groove support, a slide rod slidingly connected with the inner side of each slide groove, a fixed shaft fixedly connected with the lower end of the slide rod, a push strip fixedly connected with one end of the slide rod, a second gear rotatably connected with the lower end of the support shaft, a plurality of inclined slide grooves formed in the outer side of the second gear, and a third gear fixedly connected with the output shaft of the second motor and meshingly connected with the outer side of the second gear.

[0014] Preferably, the detection assembly further comprises an L-shaped clamping plate fixedly connected with the push strip, two baffle shafts rotatably connected with the inner side of the L-shaped clamping plate, and a plurality of damping cylinders in the baffle shafts, one of the two baffle shafts is arranged at the upper end of the L-shaped clamping plate, the other of the two baffle shafts is arranged at the angle of the L-shaped clamping plate, two third motors are arranged on one side of the L-shaped clamping plate, the output shafts of the two third motors are rotatably fixedly connected with corresponding baffle shafts through damping shafts, a plurality of groups of fiber ropes are arranged around the outer side of the baffle shafts, one end of each fiber rope is fixedly connected with a baffle shaft close to the upper end, and a clamping pin is arranged at the other end of each fiber rope, and a pressure sensor is arranged in the inner side of the clamping pin.

[0015] Compared with the prior art, the present application provides a forming mold for a vacuum cup accessory, which has the following advantages:

[0016] 1. The detection assembly can accurately screen the qualified or unqualified recycled material forming products, the unqualified products can be directly transferred to the recycled material secondary processing area, resource waste is avoided, a closed-loop utilization system of "waste plastic recycling - forming - screening - secondary recycling" is formed, and the comprehensive utilization rate of recycled plastic is improved; the flexible gasket and the gradually changing tripping structure of the ejection mechanism are arranged, the retraction design of the limiting block driven by the second electric push rod is matched, the hard top is avoided to cause the brittle fracture of the recycled material buckle, and the short board of insufficient toughness of the recycled material is adapted; the top plate is stably lifted along the assembly groove, the accurate tripping action of the first L-shaped baffle and the push plate is combined, the local adhesion problem of the recycled material product caused by uneven composition is solved, nondestructive demolding is realized, and the forming loss of the recycled material product is reduced.

[0017] 2、In view of the characteristics of the large fluctuation of the melt flowability of the recycled material, four electric hydraulic rods are used to synchronously drive the mold clamping to ensure the uniformity of the mold clamping gap and avoid the wall thickness deviation of the product, and when the vacuum chuck is adsorbed, the middle stress core area of the product is accurately aligned to prevent the deformation of the recycled material product caused by the local insufficient strength; the short board of the insufficient toughness and easy adhesion of the recycled material is adapted, and through the multidirectional collaborative tripping design of the ejection mechanism, the flexible gasket provides buffer support, the first L-shaped baffle and the push plate respectively realize multidirectional clamping block non-damage tripping, and the top plate is smoothly ejected, which completely avoids the problems of brittle fracture of the recycled material clamping buckle, product adhesion deformation and the like, and guarantees the integrity of the clamping structure of the mobile phone case for the thermal cup.

[0018] 3、The detection assembly accurately identifies the surface holes or internal bubbles of the recycled material caused by impurity residues and incomplete exhaust through the cooperation of the fiber rope and the clamping needle, selects the qualified products, ensures the structural strength and use reliability of the formed accessory, and solves the disadvantages that the traditional mold cannot detect the defects of the recycled material product; without high-precision pretreatment of the recycled plastic, the inherent defects of the recycled material are adapted through the optimization of the mold structure, the cost investment of the pretreatment of the recycled material is reduced, and the non-damage demolding and accurate screening reduce the waste loss. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a whole structure schematic diagram of the application;

[0020] Figure 2 It is a whole structure sectional view schematic diagram of the lower concave mold;

[0021] Figure 3 It is a whole structure sectional view schematic diagram of the lower concave mold;

[0022] Figure 4 It is a whole structure sectional view schematic diagram of the ejection mechanism;

[0023] Figure 5 It is a whole structure sectional view schematic diagram of the ejection mechanism;

[0024] Figure 6 It is a whole structure schematic diagram of the material taking mechanism;

[0025] Figure 7 It is a sectional view schematic diagram of the moving assembly;

[0026] Figure 8 It is a sectional view schematic diagram of the material taking mechanism;

[0027] Figure 9 It is a sectional view schematic diagram of the detection assembly;

[0028] Figure 10 It is a sectional view schematic diagram of the detection assembly;

[0029] Figure 11 It is the partial structure amplification schematic view of the detection assembly of the application;

[0030] Figure 12 It is the whole structure schematic view of the mobile phone shell for the vacuum cup.

[0031] In the figure: 1, workbench; 2, electric hydraulic rod; 3, upper convex plate mold; 4, lower concave mold; 41, assembly groove; 42, clamping groove; 43, limiting clamping strip; 5, ejection mechanism; 51, air cylinder; 52, sleeve; 53, first connecting rod; 54, second connecting rod; 55, bottom plate; 56, third connecting rod; 57, upper push block; 58, top plate; 59, first L-shaped baffle; 510, fourth connecting rod; 511, fixed block; 512, lower push block; 513, second L-shaped baffle; 514, push plate; 515, first electric push rod; 516, second electric push rod; 517, limiting block; 518, flexible gasket; 6, material taking mechanism; 61, moving assembly; 611, clamping tooth track; 612, moving block; 613, first motor; 614, first gear; 615, third electric push rod; 616, mounting plate; 617, sliding rail; 618, vacuum chuck; 62, detection assembly; 621, supporting shaft; 622, sliding groove support; 623, sliding rod; 624, fixed shaft; 625, push strip; 626, second gear; 627, second motor; 628, third gear; 629, L-shaped clamping plate; 6210, partition shaft; 6211, third motor; 6212, fiber rope; 6213, clamping needle; 7, mobile phone shell for vacuum cup. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application.

[0033] The following electrical elements are electrically connected through the PLC controller of the peripheral device.

[0034] Please refer to Figures 1-12 A forming mold for vacuum cup accessories, comprising a workbench 1, four electric hydraulic rods 2 are installed at the upper end of the workbench 1, the output shafts of the four electric hydraulic rods 2 are fixedly connected together and have an upper convex plate mold 3 installed at the inner side, the lower end of the upper convex plate mold 3 is slidably connected with a lower concave mold 4, the lower end of the lower concave mold 4 is fixedly connected with the workbench 1, an assembly groove 41 is clamped at the inner side of the lower concave mold 4, an ejection mechanism 5 for ejecting accessories is arranged at the inner side of the assembly groove 41, three clamping grooves 42 are formed in the inner wall of the assembly groove 41, a limiting clamping strip 43 is arranged on the inner wall of the assembly groove 41, and a material taking mechanism 6 for processing formed accessories is arranged at the upper end of the lower concave mold 4.

[0035] In this embodiment, the ejection mechanism 5 includes a cylinder 51 mounted at the lower end of the lower recessed die 4, the output shaft of the cylinder 51 penetrates the lower recessed die 4, the output shaft of the cylinder 51 is slidingly connected with a bottom plate 55, the bottom plate 55 is fixedly connected to the inner side of the assembly groove 41, the output shaft of the cylinder 51 is fixedly connected with a sleeve 52, the outer side of the sleeve 52 is rotatably connected with two first connecting rods 53 which are symmetrical to each other through a rotating shaft, the rear end of the first connecting rod 53 is rotatably connected with a second connecting rod 54 through a rotating shaft, the other end of the second connecting rod 54 is rotatably connected with the bottom plate 55 through a rotating shaft, the front end of the first connecting rod 53 is rotatably connected with a third connecting rod 56 through a rotating shaft, the upper end of the third connecting rod 56 is rotatably connected with an upper pushing block 57, the upper ends of the two upper pushing blocks 57 are fixedly connected with a top plate 58, and the top plate 58 is slidingly connected to the inner side of the assembly groove 41.

[0036] Specifically, the cylinder 51 provides core power for the ejection mechanism 5, and the output shaft thereof slides along the bottom plate 55 guide hole after penetrating the lower recessed die 4, thereby ensuring the stability of power output; the bottom plate 55 is fixed to the inner side of the assembly groove 41, which not only provides a guide and limit for the output shaft of the cylinder 51, but also serves as a fixed fulcrum of the second connecting rod 54, thereby ensuring the precise action of the connecting rod mechanism; the sleeve 52 is fixed to the top end of the output shaft of the cylinder 51, which is used to synchronously drive the deflection of the two symmetrical first connecting rods 53, thereby realizing uniform transmission of power; the first connecting rod 53 serves as an intermediate transmission component, and is connected with the second connecting rod 54 and the third connecting rod 56 through rotating shafts respectively, thereby converting the linear motion of the cylinder 51 into the deflection motion of the connecting rod; the second connecting rod 54 only makes deflection with the bottom plate 55 as the fulcrum, and forms lateral support in cooperation with the flexible gasket 518, thereby avoiding uneven stress when the recycled material buckle is buckled and unbuckled; the third connecting rod 56 is lifted upward during deflection, thereby providing upward driving force for the upper pushing block 57; the upper pushing block 57 drives the first L-shaped baffle 59 to slide along the limiting clamping strip 43 to realize unbuckling on one hand, and synchronously drives the top plate 58 to lift on the other hand; the top plate 58 slides along the inner side of the assembly groove 41, thereby stably ejecting the recycled plastic travel mug with mobile phone case 7 as a whole, and avoiding ejection deformation of the recycled material product caused by local adhesion.

[0037] In this embodiment, the side away from each other of the two upper pushing blocks 57 is fixedly connected with the first L-shaped baffle 59, the first L-shaped baffle 59 is slidingly connected to the inner side of the limiting clamping strip 43, and the same side of the third connecting rod 56 and the second connecting rod 54 is fixedly connected with the flexible gasket 518.

[0038] Specifically, the first L-shaped baffle 59 is fixed outside the pushing block 57 and can be precisely offset from the clamping groove 42 when sliding along the limiting clamping strip 43, thereby achieving lossless tripping of the horizontal clamping block of the recycled plastic vacuum cup mobile phone shell 7. The limiting clamping strip 43 provides sliding guidance for the first L-shaped baffle 59, ensuring the accuracy of the tripping action. The flexible gasket 518 is fixed on the same side of the third connecting rod 56 and the second connecting rod 54 and forms a buffer support when adhering to the inner wall of the clamping groove 42, thereby avoiding hard contact that causes the recycled material clamping buckle to crack and adapting to the characteristics of insufficient toughness of the recycled material.

[0039] In this embodiment, the outer side of the top plate 58 is rotatably connected with a fourth connecting rod 510 through a rotating shaft. The outer side of the fourth connecting rod 510 is rotatably connected with a fixed block 511 near the middle position. The fixed block 511 is fixedly connected to the inner side of the assembly groove 41. The front end of the fixed block 511 is rotatably connected with a pushing block 512 through a rotating shaft. The front end of the pushing block 512 is fixedly connected with a second L-shaped baffle 513. The second L-shaped baffle 513 is slidably connected to the inner side of the limiting clamping strip 43. The inner side of the second L-shaped baffle 513 is slidably connected with a push plate 514. The rear end of the second L-shaped baffle 513 is installed with a first electric push rod 515. The output shaft of the first electric push rod 515 is fixedly connected with the push plate 514. The push plate 514 is slidably connected to the inner side of the clamping groove 42.

[0040] Specifically, the fourth connecting rod 510 is connected with the top plate 58 and the pushing block 512 through a rotating shaft, forming a lever structure with the fixed block 511 as the fulcrum, and converting the upward movement of the top plate 58 into the downward movement of the pushing block 512. The fixed block 511 is fixed to the inner side of the assembly groove 41, providing a stable fulcrum for the fourth connecting rod 510 and ensuring the reliability of the lever transmission. The pushing block 512 drives the second L-shaped baffle 513 to slide along the limiting clamping strip 43, achieving precise alignment of the push plate 514 with the clamping groove 42. The second L-shaped baffle 513 provides sliding guidance for the push plate 514, ensuring smooth extension and retraction of the push plate 514 along the clamping groove 42. The push plate 514 is driven by the first electric push rod 515 to extend along the clamping groove 42, pushing the remaining clamping block of the recycled plastic vacuum cup mobile phone shell 7 to complete tripping, avoiding the fracture of the recycled material clamping block caused by jamming. The first electric push rod 515 provides extension power for the push plate 514, achieving precise pushing of the clamping block.

[0041] In this embodiment, the ejection mechanism 5 further includes three second electric push rods 516. The second electric push rods 516 are arranged on the inner side of the lower recessed die 4. The output shafts of the second electric push rods 516 penetrate the lower recessed die 4. The output shafts of the second electric push rods 516 are fixedly connected with limiting blocks 517. The limiting blocks 517 are aligned with the clamping grooves 42.

[0042] Specifically, the second electric push rod 516 is arranged inside the lower concave die 4, and an output shaft of the second electric push rod 516 drives the limiting block 517 to stretch out and retract; the limiting block 517 is aligned with the clamping groove 42, and when the mold is closed, the limiting block 517 limits the clamping block of the recycled plastic vacuum cup mobile phone shell 7 in the circumferential direction, so as to ensure the forming precision of the product; when the mold is opened, the limiting block 517 retracts into the mold, and is completely disengaged from the clamping block, so as to avoid the hard top from causing the clamping buckle of the recycled material to crack, and to reserve space for the subsequent unclamping action.

[0043] In the embodiment, the taking mechanism 6 includes a moving assembly 61 for taking out the finished accessory, and the taking mechanism 6 includes a detection assembly 62 for detecting the finished accessory.

[0044] Specifically, the moving assembly 61 is used to realize the horizontal movement and lifting of the finished accessory, and to complete the transfer of the product from the upper end of the lower concave die 4 to a specified position, so as to adapt to the requirement that the recycled material product needs to be transferred smoothly; the detection assembly 62 is used to detect the surface holes or internal bubbles of the recycled plastic vacuum cup mobile phone shell 7 caused by impurity residues or incomplete exhaust, so as to ensure the quality of the recycling of the recycled material by screening qualified products, and unqualified products can be transferred to a recycled material secondary processing area to realize closed-loop utilization.

[0045] In the embodiment, the moving assembly 61 includes two clamping tooth tracks 611, the two clamping tooth tracks 611 are respectively fixedly connected to the two sides of the lower concave die 4, a moving block 612 is slidably connected to the outside of the clamping tooth track 611, a first motor 613 is installed on one side of the moving block 612, a first gear 614 is fixedly connected to an output shaft of the first motor 613, and the outside of the first gear 614 is meshingly connected with the clamping teeth of the clamping tooth track 611.

[0046] Specifically, the clamping tooth track 611 is fixed to the two sides of the lower concave die 4, and provides a sliding track and a meshing basis for the moving block 612; the moving block 612 slides along the clamping tooth track 611, and drives the related components for taking and detecting to realize horizontal displacement; the first motor 613 provides power for the movement of the moving block 612, and the output shaft of the first motor 613 drives the first gear 614 to rotate; the first gear 614 is meshingly connected with the clamping teeth of the clamping tooth track 611, and converts the rotary motion of the first motor 613 into the linear motion of the moving block 612, so as to ensure the accurate positioning of the taking mechanism 6, and to avoid damage to the recycled material product caused by displacement deviation when the product is taken.

[0047] In the embodiment, a third electric push rod 615 is installed on the outside of the moving block 612, and an installation plate 616 is fixedly connected to the output shafts of the two third electric push rods 615, two slide rails 617 are fixedly connected to the lower end of the installation plate 616, and two vacuum suction cups 618 are installed on the inside of the slide rails 617.

[0048] Specifically, the third electric push rod 615 is used to adjust the height of the mounting plate 616, so as to realize the attachment and separation of the vacuum chuck 618 and the recycled plastic vacuum cup mobile phone case 7; the mounting plate 616 is fixedly connected with the slide rail 617 and the support shaft 621, so as to realize the integrated installation of the moving assembly 61 and the detection assembly 62; the slide rail 617 provides a mounting basis for the vacuum chuck 618, so as to ensure the mounting stability of the vacuum chuck 618; the vacuum chuck 618 adsorbs the recycled plastic vacuum cup mobile phone case 7 through negative pressure adsorption, adapts to the micro shrinkage marks possibly existing on the surface of the recycled material product, ensures the adsorption stability, and avoids product deformation caused by excessive local stress during material taking.

[0049] In the embodiment, the detection assembly 62 includes a support shaft 621 fixedly connected with the mounting plate 616, a sliding groove support 622 fixedly connected to the outer side of the support shaft 621, a plurality of sliding grooves in the sliding groove support 622, a sliding rod 623 slidably connected to the inner side of each sliding groove, a fixed shaft 624 fixedly connected to the lower end of the sliding rod 623, a push strip 625 fixedly connected to one end of the sliding rod 623, a second gear 626 rotatably connected to the lower end of the support shaft 621, a plurality of inclined sliding grooves formed in the outer side of the second gear 626, and a second motor 627 mounted on the outer side of the sliding groove support 622. The output shaft of the second motor 627 is fixedly connected with a third gear 628, and the outer side of the third gear 628 is engagedly connected with the second gear 626.

[0050] Specifically, the support shaft 621 is fixed to the mounting plate 616, and provides mounting support for the sliding groove support 622 and the second gear 626; the sliding groove support 622 is provided with a plurality of sliding grooves for slidingly guiding the sliding rod 623, so as to ensure the accuracy of the extension and retraction movement of the sliding rod 623; the sliding rod 623 is connected with the second gear 626 through the fixed shaft 624, and extends and retracts along the sliding groove under the drive of the second gear 626, so as to drive the push strip 625 to move; the fixed shaft 624 is slidably connected in the inclined sliding groove of the second gear 626, so as to convert the rotary motion of the second gear 626 into the linear motion of the sliding rod 623; the push strip 625 is fixed to one end of the sliding rod 623, and drives the L-shaped clamping plate 629 to move away from or close to the product, so as to ensure the accurate alignment of the clamping needle 6213 with the product during detection and the smooth separation after detection; the second gear 626 drives the fixed shaft 624 to move through the inclined sliding groove, and provides power for the extension and retraction of the sliding rod 623; the second motor 627 provides power for the extension and retraction movement of the detection assembly 62, and the output shaft of the second motor 627 drives the third gear 628 to rotate; the third gear 628 is engaged with the second gear 626, so as to transmit the rotary motion of the second motor 627 to the second gear 626, and realize the synchronous extension and retraction of the detection assembly 62.

[0051] In this embodiment, the detection assembly 62 further comprises an L-shaped clamping plate 629 fixedly connected with the push strip 625, the inner side of the L-shaped clamping plate 629 is rotatably connected with two baffle shafts 6210, the baffle shafts 6210 comprise a plurality of damping cylinders, one of the two baffle shafts 6210 is arranged at the upper end of the L-shaped clamping plate 629, the other of the two baffle shafts 6210 is arranged at the angle of the L-shaped clamping plate 629, one side of the L-shaped clamping plate 629 is provided with two third motors 6211, the output shafts of the two third motors 6211 are rotatably and fixedly connected with the corresponding baffle shaft 6210 through damping shafts, the outer side of the baffle shaft 6210 is provided with a plurality of groups of fiber ropes 6212, one end of the fiber rope 6212 is fixedly connected with a baffle shaft 6210 close to the upper end, the other end of the fiber rope 6212 is provided with a clamping needle 6213, the inner side of the clamping needle 6213 is provided with a pressure sensor.

[0052] Specifically, the L-shaped clamping plate 629 provides a mounting basis for the baffle shaft 6210 and the third motor 6211, and provides support for the arrangement of the fiber rope 6212; the baffle shaft 6210 comprises a plurality of damping cylinders, one of which is arranged at the upper end of the L-shaped clamping plate 629 for winding and fixing the fiber rope 6212, and the other is arranged at the angle for turning and tension buffering of the fiber rope 6212, so as to avoid the fiber rope 6212 from being hung off by the edge burr of the recycled product; the third motor 6211 provides power for the rotation of the baffle shaft 6210, and the output shaft thereof is connected with the baffle shaft 6210 through a damping shaft to form a tension buffer and prevent the fiber rope 6212 from being pulled off; the fiber rope 6212 is used to connect the baffle shaft 6210 and the clamping needle 6213 to realize the release and recovery of the clamping needle 6213; the clamping needle 6213 is used to be clamped into the hole of the recycled plastic vacuum cup mobile phone shell 7, and the clamping quantity is used to judge whether the product is qualified; the pressure sensor is arranged on the inner side of the clamping needle 6213 to feedback the clamping state of the clamping needle 6213, improve the detection accuracy, and adapt to the demand of recycled product defect detection.

[0053] Working principle, this mold is specially designed for recycling polypropylene, polyethylene and other waste plastics, aiming at the characteristics of large fluctuation of recycled material melt flowability, easy to produce bubbles / shrinking marks after cooling, easy to adhere to the mold cavity, etc., through the coordinated action of the ejection mechanism 5 and the material taking mechanism 6, the efficient forming, damage-free demolding and quality selection of the recycled plastic vacuum cup mobile phone shell 7 are realized, and the specific working principle is as follows;

[0054] In use, first, the four electric hydraulic rods 2 at the upper end of the workbench 1 are started, and the output shafts thereof synchronously drive the upper convex plate mold 3 to move linearly downward in the vertical direction until the lower concave plate mold 4 fixed to the workbench 1 is precisely fitted. The synchronous driving design can ensure uniform mold gap and avoid product wall thickness deviation caused by uneven filling of the recycled material melt. After the mold is closed, the pre-processed waste plastic melt is injected into the closed cavity formed by the upper convex plate mold 3 and the lower concave plate mold 4 through the injection tube inside the upper convex plate mold 3, and after the melt is cooled and shaped, the electric hydraulic rods 2 are started again to drive the upper convex plate mold 3 to lift and reset, completing the preliminary forming;

[0055] After the recycled plastic travel mug mobile phone case 7 is cooled and shaped, it is easy to be locally adhered to the cavity due to uneven composition of the recycled material, and the multidirectional buckle structure is easy to be stuck in the clamping groove 42 of the lower concave plate mold 4, so the pop-up mechanism 5 is needed to realize multidirectional coordinated unbuckling and ejection;

[0056] The three second electric push rods 516 inside the lower concave plate mold 4 are started, the output shafts thereof drive the limiting blocks 517 to synchronously retract into the mold, completely disengage from the clamping blocks outside the travel mug mobile phone case 7, release the circumferential limitation of the product, reserve space for subsequent unbuckling, and avoid hard ejection causing the recycled material clamping block to be brittle;

[0057] The cylinder 51 installed at the lower end of the lower concave plate mold 4 is started, the output shaft thereof penetrates through the lower concave plate mold 4 and extends upward along the guide hole of the bottom plate 55 fixed inside the assembly groove 41. The output shaft of the cylinder 51 drives the two symmetrically distributed first connecting rods 53 to deflect around the rotating shaft through the sleeve 52, the first connecting rods 53 synchronously drive the second connecting rods 54 at the rear end and the third connecting rods 56 at the front end to unfold - the second connecting rods 54 only deflect around the bottom plate 55 as a fixed fulcrum, and form lateral support by adhering to the inner wall of the clamping groove 42 through the flexible gasket 518 outside; the third connecting rods 56 are lifted upward during the deflection process, drive the upper push blocks 57 and the first L-shaped baffle 59 fixed thereto to slide upward along the limiting clamping strip 43, make the first L-shaped baffle 59 completely disengage from the clamping groove 42, and realize the unbuckling of the lateral clamping blocks of the product;

[0058] While the sleeve 52 moves upward, the fourth connecting rod 510 outside the top plate 58 is deflected around the fixed block 511, and the fourth connecting rod 510 at the other end is pulled downward by the lever principle to drive the lower push block 512, drive the second L-shaped baffle 513 to slide downward along the limiting clamping strip 43, until the push plate 514 inside the second L-shaped baffle 513 is precisely aligned with the remaining clamping groove 42. Then the first electric push rod 515 is started to drive the push plate 514 to extend along the clamping groove 42, and the corresponding clamping blocks of the product are unbuckled by pushing, completely avoiding the breakage of the recycled material clamping block due to insufficient toughness. When the two upper push blocks 57 synchronously move upward, the top plate 58 is stably lifted along the inside of the assembly groove 41 to lift the travel mug mobile phone case 7 to the upper end surface of the lower concave plate mold 4, completing the demolding action;

[0059] The recycled plastic is prone to surface holes or internal bubbles due to residual impurities and incomplete melt exhaust, which directly affects the strength of the product, and the product transfer and quality detection need to be completed synchronously by the taking mechanism 6; the third electric push rod 615 in the moving assembly 61 is started, and the height of the mounting plate 616 is adjusted to the adaptive position; then the first motor 613 on both sides of the concave die 4 is started, the output shaft of the first motor 613 drives the first gear 614 to rotate, and the first gear 614 is meshed with the ratchet track 611 to drive the moving block 612 to move horizontally along the ratchet track 611, so that the vacuum chuck 618 inside the lower end sliding rail 617 of the mounting plate 616 is aligned with the middle area of the mobile phone case 7 for the heat preservation cup, which is the core stress area of the product, and deformation of the recycled material product caused by local insufficient strength can be avoided; the third electric push rod 615 is started again to make the mounting plate 616 descend until the vacuum chuck 618 is tightly attached to the surface of the product, and the product is fixed by negative pressure adsorption, which can adapt to the possible micro shrinkage marks on the surface of the recycled material product and ensure the adsorption stability;

[0060] The two third motors 6211 in the detection assembly 62 are started synchronously to drive the partition shaft 6210 inside the L-shaped clamping plate 629 to rotate and release the wound fiber rope 6212 - the partition shaft 6210 at the angle of the L-shaped clamping plate 629 is responsible for the turning and tension buffering of the fiber rope 6212, which can avoid the fiber rope 6212 from being broken by the edge burr of the recycled material product. The clamping needles 6213 at the end of the fiber rope 6212 are evenly distributed on the outside of the product, and then the third motor 6211 is reversely rotated to retract the fiber rope 6212: if the product has holes caused by defects of the recycled material, the clamping needles 6213 will be clamped into the holes, at which time the damping cylinder in the partition shaft 6210 and the damping shaft of the output shaft of the third motor 6211 form a buffer to prevent the fiber rope 6212 from being broken; the clamping needles 6213 that are not clamped into the holes are retracted smoothly along with the fiber rope 6212. Finally, the number of clamping needles 6213 and the pressure sensor feedback are used to judge whether the product is qualified or not, and the number of holes exceeding the threshold is unqualified;

[0061] After the quality detection is completed, the moving assembly 61 moves the vacuum chuck 618 that adsorbs the qualified product to the designated storage position through the transmission of the ratchet track 611 and the first gear 614; if it is unqualified, it is moved to the recycled material secondary processing area to realize the closed-loop utilization of waste plastics;

[0062] After the product is transferred, the second motor 627 of the detection assembly 62 is started, the output shaft of the second motor 627 drives the third gear 628 to rotate, and the second gear 626 is driven to rotate around the support shaft 621 through gear meshing. The second gear 626 pushes the fixed shaft 624 through the inner inclined surface sliding groove, so that the sliding rod 623 extends outward along the sliding groove of the sliding groove support 622, and then the L-shaped clamping plate 629 is driven by the push bar 625 to move away from the product, so that the card needle 6213 is completely separated from the product. Finally, the taking mechanism 6 and the ejection mechanism 5 are reset to the initial state, preparing for the next recycling of the plastic melt injection molding, forming a continuous production cycle.

[0063] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, the scope of the present application being defined by the appended claims and their equivalents.

Claims

1. A forming die for a thermos flask accessory, comprising a worktable (1), characterised in that: The upper end of the workbench (1) is provided with four electric hydraulic rods (2), the output shafts of the four electric hydraulic rods (2) are fixedly connected with an upper convex plate mold (3), an injection tube is arranged on the inner side of the upper convex plate mold (3), a lower concave plate mold (4) is slidably connected to the lower end of the upper convex plate mold (3), the lower end of the lower concave plate mold (4) is fixedly connected with the workbench (1), an assembly groove (41) is arranged on the inner side of the lower concave plate mold (4), a pop-up mechanism (5) for popping up accessories is arranged on the inner side of the assembly groove (41), three clamping grooves (42) are arranged on the inner wall of the assembly groove (41), and a limiting clamping strip (43) is arranged on the inner wall of the assembly groove (41). An accessory taking mechanism (6) for processing formed accessories is arranged on the upper end of the lower concave plate mold (4).

2. The forming mold of a vacuum cup accessory according to claim 1, wherein: The pop-up mechanism (5) comprises a pneumatic cylinder (51) arranged on the lower end of the lower concave plate mold (4), the output shaft of the pneumatic cylinder (51) penetrates the lower concave plate mold (4), a bottom plate (55) is slidably connected to the output shaft of the pneumatic cylinder (51), the bottom plate (55) is fixedly connected to the inner side of the assembly groove (41), a sleeve (52) is fixedly connected to the output shaft of the pneumatic cylinder (51), two first connecting rods (53) that are symmetrical to each other are rotatably connected to the outer side of the sleeve (52) through pivots, a second connecting rod (54) is rotatably connected to the rear end of the first connecting rod (53) through a pivot, the other end of the second connecting rod (54) is rotatably connected with the bottom plate (55) through a pivot, a third connecting rod (56) is rotatably connected to the front end of the first connecting rod (53) through a pivot, an upper pushing block (57) is rotatably connected to the upper end of the third connecting rod (56) through a pivot, two upper pushing blocks (57) are fixedly connected with a top plate (58) at the upper ends thereof, and the top plate (58) is slidably connected to the inner side of the assembly groove (41).

3. The forming mold of a vacuum cup accessory according to claim 2, wherein: First L-shaped baffles (59) are fixedly connected to the sides, away from each other, of the two upper pushing blocks (57), and the first L-shaped baffles (59) are slidably connected to the inner side of the limiting clamping strip (43). The same side of the third connecting rod (56) and the second connecting rod (54) is fixedly connected with a flexible gasket (518).

4. The forming mold of a vacuum cup accessory according to claim 2, wherein: A fourth connecting rod (510) is rotatably connected to the outer side of the top plate (58) through a pivot, a fixed block (511) is rotatably connected to the outer side of the fourth connecting rod (510) near the middle position, the fixed block (511) is fixedly connected to the inner side of the assembly groove (41), a lower pushing block (512) is rotatably connected to the front end of the fixed block (511) through a pivot, a second L-shaped baffle (513) is fixedly connected to the front end of the lower pushing block (512), the second L-shaped baffle (513) is slidably connected to the inner side of the limiting clamping strip (43), a pushing plate (514) is slidably connected to the inner side of the second L-shaped baffle (513), a first electric push rod (515) is arranged on the rear end of the second L-shaped baffle (513), the output shaft of the first electric push rod (515) is fixedly connected with the pushing plate (514), and the pushing plate (514) is slidably connected to the inner side of the clamping groove (42).

5. The forming mold of a vacuum cup accessory according to claim 1, wherein: The ejection mechanism (5) further comprises three second electric push rods (516) arranged on the inner side of the lower intaglio die (4), the output shafts of the second electric push rods (516) penetrating through the lower intaglio die (4), the output shafts of the second electric push rods (516) being fixedly connected with limiting blocks (517) aligned with the clamping grooves (42).

6. The forming mold of a vacuum cup accessory according to claim 1, wherein: The material taking mechanism (6) comprises a moving assembly (61) for taking out the finished accessory and a detection assembly (62) for detecting the finished accessory.

7. The forming mold of a vacuum cup accessory according to claim 6, characterized in that: The moving assembly (61) comprises two clamping tooth tracks (611) fixedly connected on the two sides of the lower intaglio die (4), the outer side of each clamping tooth track (611) being slidably connected with a moving block (612), one side of the moving block (612) being provided with a first motor (613), the output shaft of the first motor (613) being fixedly connected with a first gear (614), the outer side of the first gear (614) being meshingly connected with the clamping teeth of the clamping tooth track (611).

8. The forming mold of a vacuum cup accessory according to claim 7, characterized in that: The outer side of the moving block (612) is provided with a third electric push rod (615), the output shafts of the two third electric push rods (615) being fixedly connected with a mounting plate (616), the lower end of the mounting plate (616) being fixedly connected with two slide rails (617), the inner side of each slide rail (617) being provided with a vacuum suction disc (618).

9. The forming mold of a vacuum cup accessory of claim 6, wherein: The detection assembly (62) comprises a support shaft (621) fixedly connected with the mounting plate (616), the outer side of the support shaft (621) being fixedly connected with a sliding groove support (622), the inner side of each sliding groove of the sliding groove support (622) being slidably connected with a sliding rod (623), the lower end of the sliding rod (623) being fixedly connected with a fixed shaft (624), one end of the sliding rod (623) being fixedly connected with a push strip (625), the lower end of the support shaft (621) being rotatably connected with a second gear (626), the outer side of the second gear (626) being provided with a plurality of inclined sliding grooves, the fixed shaft (624) being slidably connected on the inner side of the second gear (626), the outer side of the sliding groove support (622) being provided with a second motor (627), the output shaft of the second motor (627) being fixedly connected with a third gear (628), the outer side of the third gear (628) being meshingly connected with the second gear (626).

10. The forming mold of a vacuum cup accessory according to claim 6, wherein: The detection assembly (62) further includes an L-shaped clamping plate (629) fixedly connected with the push rod (625), the inner side of the L-shaped clamping plate (629) is rotatably connected with two partition shafts (6210), the partition shaft (6210) includes a plurality of damping cylinders, one of the two partition shafts (6210) is arranged at the upper end of the L-shaped clamping plate (629), the other of the two partition shafts (6210) is arranged at the angle of the L-shaped clamping plate (629), one side of the L-shaped clamping plate (629) is provided with two third motors (6211), the output shafts of the two third motors (6211) are rotatably and fixedly connected with corresponding one of the partition shafts (6210) through damping shafts, the outer side of the partition shaft (6210) is surrounded by a plurality of groups of fiber ropes (6212), one end of the fiber rope (6212) is fixedly connected with one of the partition shafts (6210) close to the upper end, the other end of the fiber rope (6212) is provided with a clamping needle (6213), the inner side of the clamping needle (6213) is provided with a pressure sensor.

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