Automatic forming die

Abstract

The invention relates to the field of injection molding equipment, in particular to an automatic forming mold. Comprising a workbench; a fixed mold is mounted on the workbench; a movable die is slidably connected to the workbench. According to the injection mold, the blowing groove and the exhaust groove of the injection mold (namely the fixed mold) share one channel (namely the vent groove), the mold structure is greatly simplified, through blocking of the vent groove, the size and the position of the vent groove do not need to be strictly controlled, the vent groove of a larger specification can be designed, the blowing demolding effect is improved, and the mold structure is simplified. The die processing difficulty and the manufacturing cost are reduced; the fixing ring is plugged through the sealing ring, so that gas entering the vent groove is blown into a hole of the venting plug, impurities in the hole of the venting plug are blown and cleaned, a needle on the dredging block is pushed to be inserted into the hole of the venting plug, then solidified impurities in the hole are pushed out, automatic dredging of the venting plug is achieved, manual operation is not needed, and the work efficiency is improved. The maintenance efficiency is high, the production process cannot be interrupted, and the production effect is greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of injection molding equipment, in particular to an automatic molding die. BACKGROUND

[0002] With the improvement of global environmental awareness, waste plastic recycling has become one of the key ways to solve the problem of plastic pollution. Among them, the injection molding process can reprocess recycled waste plastic particles into various plastic products, and has been widely used in the field of waste plastic recycling.

[0003] However, during the recycling and crushing process, air, moisture and a small amount of volatile impurities are easily mixed into the waste plastic. During injection molding, if the air in the cavity cannot be discharged in time and smoothly, it will cause the product to have defects such as bubbles, material shortage, burning, surface depression, etc., which will significantly reduce the product pass rate. In order to avoid sticking to the mold during demolding, it is necessary to blow air to assist the product and the mold to separate. In order to realize the above two functions, the existing injection mold needs to separately open an exhaust groove for discharging air in the cavity, and separately open a blowing groove and a matching blowing pipeline for blowing film demolding. In order to avoid the overflow of molten plastic from the exhaust groove or the blowing groove during injection molding, the size and position of the two types of channels need to be strictly controlled, which leads to a complex mold structure, increases the mold processing difficulty and manufacturing cost, and also has the risk of channel layout interference. SUMMARY

[0004] In order to overcome the shortcomings of the existing injection mold that needs to separately set up an exhaust groove and a blowing groove, resulting in a complex mold structure, increasing the mold processing difficulty and manufacturing cost, and also having the risk of channel layout interference, the present application provides an automatic molding die.

[0005] Technical scheme: An automatic molding die, comprising a workbench; a fixed mold mounted on the workbench; a movable mold slidingly connected to the workbench; a plurality of fixed pipes connected in the fixed mold; a cavity opened on the fixed mold; an air inlet pipe provided on the fixed mold; an air passage opened in each fixed pipe; each air passage is in communication with the air inlet pipe in the fixed mold; each air passage is in communication with the cavity; a first electric push rod is fixedly connected in each fixed pipe; a fixed ring is connected to the middle of each fixed pipe; a sealing ring is connected to the extension end of each first electric push rod; a plug is connected to each sealing ring; an exhaust plug is mounted on each plug, and a plurality of holes are opened in each exhaust plug; a dredging assembly for dredging the exhaust plug is connected to each first electric push rod.

[0006] As the improvement of the above-mentioned scheme, the dredging assembly comprises connecting rods connected to the first electric push rods; each connecting rod is slidably connected with a sliding rod; two sliding grooves are formed in each connecting rod; the left end of each sliding rod penetrates the connecting rod; each sliding rod is fixedly connected with a dredging block at the left end, and a plurality of needle heads are arranged on the left side of each dredging block; a spring is fixedly connected between each sliding rod and the connecting rod; two pressure blocks are arranged on each sliding rod; each pressure block penetrates the connecting rod and slides in the corresponding sliding groove; two second electric push rods are fixedly connected in each fixed pipe; and the extension end of each second electric push rod is fixedly connected with a pressing block.

[0007] As the improvement of the above-mentioned scheme, the needle heads on the dredging block are made of hard alloy material.

[0008] As the improvement of the above-mentioned scheme, the dredging assembly further comprises a compression ring; each fixed pipe is composed of a disassembly part located at the left part and a connecting part located at the right part; the connecting part is detachably connected with the fixed die; each disassembly part is detachably connected with the corresponding connecting part; each plug is detachably connected with the corresponding sealing ring; each fixed ring is detachably connected with the corresponding connecting part; an installation groove is formed in each plug; the exhaust plug is placed in the installation groove; and the compression ring is fixedly connected in each plug, and the compression ring is used for axially compressing and fixing the exhaust plug placed in the installation groove.

[0009] As the improvement of the above-mentioned scheme, a sealing piece for plugging the sliding groove is fixedly connected to each pressure block.

[0010] As the improvement of the above-mentioned scheme, a rubber layer is arranged on the contact surface of the sealing ring and the fixed ring.

[0011] As the improvement of the above-mentioned scheme, the right side of the fixed ring is in an expanded shape.

[0012] As the improvement of the above-mentioned scheme, the dredging assembly further comprises an outer frame and a sealing frame; the outer frame is fixedly connected to the fixed die; the sealing frame is fixedly connected to the movable die; and the sealing frame and the outer frame are gap-fitted.

[0013] As the improvement of the above-mentioned scheme, a rubber layer is arranged on the contact surface of the outer frame and the sealing frame.

[0014] As the improvement of the above-mentioned scheme, a plurality of pressure relief grooves are formed in the outer frame.

[0015] Beneficial effects: The present application realizes that the blowing groove and the exhaust groove of the injection mold (i.e. the fixed die) share one channel (i.e. the ventilation groove), greatly simplifies the mold structure, and through the plugging effect of the plug and the exhaust plug on the ventilation groove, the size and position of the ventilation groove do not need to be strictly controlled, a larger specification ventilation groove can be designed, the blowing demolding effect is improved, and the mold processing difficulty and manufacturing cost are reduced.

[0016] The first electric push rod is controlled to be fully retracted and reset, the sealing ring is sealed to the fixed ring, and then the gas entering the vent groove enters the plug through the fixed ring and the sealing ring, and then blows into the hole of the exhaust plug to blow and clean the impurities in the hole of the exhaust plug, the second electric push rod is controlled to extend to the left, the needle on the dredging block is inserted into the hole in the exhaust plug, and then the solidified impurities in the hole are pushed out, so that the exhaust plug is automatically dredged without manual operation, the maintenance efficiency is high, the production process is not interrupted, and the production effect is greatly improved;

[0017] The cavity is sealed by the outer frame and the sealing frame during demolding, so that the material is prevented from being blown out of the cavity and falling off, affecting subsequent feeding. When the material is demolded, the movable mold is controlled to move to the right, and then the demolded material is pushed back into the cavity, so that the material is attached to the fixed pipe. Then the external air pump is switched to the suction state, so that the vent groove generates suction force to temporarily adsorb the demolded material. Then the movable mold is controlled to move to the left and reset. At this time, the material will not fall off under the action of the adsorption force, which is convenient for the rapid feeding of the subsequent mechanical hand. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is an automatic forming mold three-dimensional structure schematic diagram of the application;

[0019] Figure 2 It is a fixed mold and outer frame three-dimensional structure schematic diagram of the application;

[0020] Figure 3 It is a fixed mold, fixed pipe and plug combination three-dimensional structure schematic diagram of the application;

[0021] Figure 4 It is a fixed mold and movable mold clamping state diagram of the application;

[0022] Figure 5 It is a vent groove gas blowing demolding state diagram of the application;

[0023] Figure 6 It is a fixed ring sealing state diagram of the application;

[0024] Figure 7 It is an explosion diagram of the plug, exhaust plug and compression ring of the application.

[0025] The figure label name: 1-Workbench, 2-Fixed mold, 2001-Cavity, 3-Moving mold, 101-Fixed pipe, 10101-Dismantling part, 10102-Connecting part, 10103-Air vent groove, 102-Plug, 10201-Mounting groove, 103-Exhaust plug, 104-Compression ring, 105-First electric push rod, 106-Connecting rod, 10601-Sliding groove, 107-Block, 108-Sliding rod, 10801-Pressure block, 10802-Sealing piece, 109-Spring, 201-Fixed ring, 202-Sealing ring, 203-Second electric push rod, 204-Squeezing block, 205-Outer frame, 20501-Pressure relief groove, 206-Sealing frame. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] Embodiment 1: An automatic forming mold, as shown in the figure, comprising a workbench 1, a fixed mold 2 and a moving mold 3; the fixed mold 2 is installed on the workbench 1; the moving mold 3 is slidingly connected on the workbench 1, and the moving mold 3 is driven by a hydraulic push rod to perform mold closing operation; Figures 1-7

[0028] Further comprising a fixed pipe 101, a plug 102, an exhaust plug 103, a first electric push rod 105, a fixed ring 201, a sealing ring 202 and a dredging assembly; the fixed mold 2 is detachably connected with four fixed pipes 101; the fixed mold 2 is provided with a cavity 2001; the fixed mold 2 is detachably connected with four fixed pipes 101; the fixed mold 2 is provided with an air inlet pipe; each fixed pipe 101 is provided with an air vent groove 10103; each air vent groove 10103 is in communication with the air inlet pipe in the fixed mold 2; each air vent groove 10103 is in communication with the cavity 2001; each fixed pipe 101 is fixedly connected with a first electric push rod 105; each fixed pipe 101 is connected with a fixed ring 201 at the middle part; the telescopic end of each first electric push rod 105 is connected with a sealing ring 202; each sealing ring 202 is connected with a plug 102, and the plug 102 is hollow; each plug 102 is provided with an exhaust plug 103 at the middle part, and the exhaust plug 103 is provided with a plurality of holes; each first electric push rod 105 is connected with a dredging assembly.

[0029] ​The dredging assembly comprises a connecting rod 106, a dredging block 107, a sliding rod 108, a spring 109, a second electric push rod 203 and a pressing block 204; the telescopic end of each first electric push rod 105 is fixedly connected with the connecting rod 106; the sliding rod 108 is slidably connected in each connecting rod 106; two sliding grooves 10601 are formed in each connecting rod 106; the left end of each sliding rod 108 penetrates the connecting rod 106; the left end of each sliding rod 108 is fixedly connected with the dredging block 107, and a plurality of needle heads are arranged on the left side of each dredging block 107; the spring 109 is fixedly connected between each sliding rod 108 and the connecting rod 106; two pressure blocks 10801 are arranged on each sliding rod 108; each pressure block 10801 penetrates the connecting rod 106 and slides in the corresponding sliding groove 10601; two second electric push rods 203 are fixedly connected in each fixed pipe 101; the telescopic end of each second electric push rod 203 is fixedly connected with the pressing block 204.

[0030] In the embodiment, first, the air inlet pipe in the fixed mold 2 is communicated with the external air pump, and when the injection molding operation is performed, as shown in Figure 3 and Figure 4 , the first electric push rod 105 is in the extended state, at this time, the plug 102 blocks the ventilation groove 10103, so that the molten plastic does not overflow through the ventilation groove 10103 during injection molding, and the gas generated in the cavity 2001 can be discharged to the ventilation groove 10103 through the exhaust hole in the exhaust plug 103, and then discharged to the outside through the air inlet pipe in the fixed mold 2, and it is well known that the exhaust plug 103 is a prior art and its specific structure will not be described here; when demolding is performed, as shown in Figure 5 , the first electric push rod 105 is controlled to be retracted to the right, and then the plug 102, the exhaust plug 103 and the sealing ring 202 are moved to the right through the connecting rod 106, and it is well known that the first electric push rod 105 will not be completely retracted and the sealing ring 202 will not be in contact with the fixed ring 201 during this process; as the plug 102 moves to the right, the blocking state of the ventilation groove 10103 is released, and then the external air pump is started to blow air, the airflow enters the ventilation groove 10103 through the air inlet pipe in the fixed mold 2, and then blows into the cavity 2001, thereby blowing the molded material out of the cavity 2001 to complete the demolding operation, thereby making the air blowing groove and the exhaust groove of the injection mold (i.e. the fixed mold 2) share one channel (i.e. the ventilation groove 10103), which greatly simplifies the mold structure, and through the blocking effect of the plug 102 and the exhaust plug 103 on the ventilation groove 10103, the size and position of the ventilation groove 10103 do not need to be strictly controlled, a larger specification of the ventilation groove 10103 can be designed, the air blowing demolding effect is improved, and the mold processing difficulty and manufacturing cost are reduced.

[0031] Furthermore, considering that during the injection molding process, molten plastic can easily enter the vent holes of the vent plug 103 due to factors such as injection pressure and injection volume, long-term use can lead to blockage of the vent plug 103 and loss of its venting function. Therefore, it is necessary to regularly clean and unclog the vent plug 103. However, in the existing technology, cleaning the blocked vent plug 103 requires stopping the machine and disassembling the mold, which is not only cumbersome and inefficient, but also interrupts the production process and increases production time costs. Therefore, if... Figure 6 As shown, in the initial state, the sliding rod 108 is located inside the connecting rod 106 under the pressure of the spring 109. At this time, the needle on the unblocking block 107 is not inserted into the hole of the vent plug 103. Therefore, the vent plug 103 can perform venting operations normally during injection molding. When it is necessary to unblock and clean the vent plug 103, the first electric push rod 105 is fully retracted and reset, thereby driving the plug 102, vent plug 103, connecting rod 106 and sealing ring 202 to move to the right, and causing the sealing ring 202 to insert into the inner side of the fixing ring 201. Then, the sealing ring 202 seals the fixing ring 201. Then, the gas entering the venting groove 10103 will enter the plug 102 through the fixing ring 201 and sealing ring 202, and then be blown into the hole of the vent plug 103 to blow away and clean the impurities in the hole of the vent plug 103. Furthermore, considering that the molten plastic entering the hole will solidify and adhere to the hole after cooling, forming solidified impurities, it is difficult to blow out these solidified impurities by blowing air. Therefore, the second electric push rod 203 is controlled to extend to the left, thereby driving the extrusion block 204 to move to the left. Then, the extrusion block 204 will contact the pressure block 10801 and push the pressure block 10801, the sliding rod 108, and the unblocking block 107 to move to the left. At this time, the pressure block 10801 slides to the left in the slide groove 10601, the spring 109 is compressed and contracts, and then the needle on the unblocking block 107 will insert into the hole in the vent plug 103, thereby pushing out the solidified impurities in the hole. In summary, this method realizes automatic unblocking of the vent plug 103 without manual operation, with high maintenance efficiency and no interruption of the production process, which greatly improves the production effect.

[0032] In a further preferred embodiment of the present invention, the needle on the unblocking block 107 is made of hard alloy.

[0033] In this embodiment, the hardness of the cemented carbide needle is much higher than that of the cured plastic, making it less prone to wear and deformation even after repeated cleaning, resulting in a long service life and eliminating the need for frequent replacement.

[0034] The further preferred embodiment of the present application further comprises a pressing ring 104; each fixed pipe 101 is composed of a left dismounting part 10101 and a right connecting part 10102; the connecting part 10102 is threadedly connected with the fixed mold 2; each dismounting part 10101 is threadedly connected with the corresponding connecting part 10102; each plug 102 is threadedly connected with the corresponding sealing ring 202; each fixed ring 201 is threadedly connected with the corresponding connecting part 10102; each plug 102 is provided with an installation groove 10201; the exhaust plug 103 is placed in the installation groove 10201; and each plug 102 is boltedly connected with the pressing ring 104.

[0035] In the embodiment, considering that the waste plastics of different materials (such as PP, PE, ABS, TPE, etc.) have large differences in melt viscosity and fluidity when injection molding, different aperture specifications of the exhaust plug 103 need to be matched to ensure the exhaust effect, too large aperture is easy to cause the molten plastic to overflow, and too small aperture is not easy to exhaust; but the installation structure of the exhaust plug 103 in the existing mold is mostly an integral fixed design, which needs to disassemble the mold body when disassembling, the operation steps are complicated and time-consuming, which seriously affects the production change efficiency, and the cleaning of the ventilation channel is also inconvenient when the mold is maintained; based on this, when the exhaust plug 103 needs to be replaced, the worker does not need to disassemble the whole fixed mold 2, only needs to twist the dismounting part 10101 from the connecting part 10102, then twist the plug 102 from the sealing ring 202, then dismount the bolt in the plug 102 for fixing the pressing ring 104, then take out the pressing ring 104, and the exhaust plug 103 can be replaced, which is simple, and the exhaust plug 103 is fixed by the pressing ring 104, which greatly improves the fixing effect of the exhaust plug 103, avoids that the exhaust plug 103 is loosened and displaced by airflow during the exhaust and blowing process, and affects the subsequent injection molding operation; and after the dismounting part 10101 is dismounted, the worker can directly visually clean the inside of the ventilation groove 10103.

[0036] In the further preferred embodiment of the present application, as shown in Figure 5 and Figure 6 each pressure receiving block 10801 is fixedly connected with a sealing piece 10802.

[0037] In the embodiment, the sliding groove 10601 is blocked by the pressure receiving block 10801, so that when the ventilation groove 10103 exhausts and blows, the impurities carried in the airflow do not enter the connecting rod 106, which affects the normal sliding of the sliding rod 108.

[0038] In the further preferred embodiment of the present application, the contact surfaces of the sealing ring 202 and the fixed ring 201 are provided with rubber layers.

[0039] In this embodiment, the sealing ring 202 and the fixed ring 201 contact surface on the rubber layer, improve the sealing ring 202 to the fixed ring 201 plugging effect.

[0040] In the further preferred embodiment of the application, the right side of the fixed ring 201 is flared.

[0041] In this embodiment, after the sealing ring 202 plugging the fixed ring 201, the gas entering the vent groove 10103 will pass through the fixed ring 201 and the sealing ring 202 into the plug 102, and then blow into the hole of the exhaust plug 103. At this time, the flared fixed ring 201 improves the guiding effect of the gas flow, making the gas flow converge from the flared end to the narrow end, forming a concentrated gas flow, greatly enhancing the blowing force of the gas flow on the residual impurities in the hole of the exhaust plug 103, and improving the cleaning degree and efficiency.

[0042] Example 2: based on example 1, as shown in Figures 2-4 The outer frame 205 is fixed on the fixed mold 2, and the sealing frame 206 is fixed on the movable mold 3. The sealing frame 206 and the outer frame 205 are gap fitted.

[0043] In this embodiment, considering that traditional demolding requires separating the movable mold 3 from the fixed mold 2, and then demolding by blowing film, but after the movable mold 3 moves, the sealing of the cavity 2001 fails, and the material is easily blown out of the cavity 2001 and falls randomly, which cannot be accurately positioned, causing great inconvenience to subsequent feeding; therefore, as shown in Figure 4 When the fixed mold 2 and the movable mold 3 are closed, the sealing frame 206 will be inserted into the outer frame 205, and at this time, the fixed mold 2, the movable mold 3 and the sealing frame 206 form a cavity 2001. When demolding after injection molding, control the movable mold 3 to move left, and then drive the sealing frame 206 to move left. At this time, the sealing frame 206 will not slide out of the outer frame 205, so the cavity 2001 can continue to be sealed and then the external air pump blows air into the vent groove 10103, thereby demolding the material. During the demolding process, after the movable mold 3 moves left, the space of the cavity 2001 becomes larger, the movable mold 3 is no longer in contact with the material, and the movable mold 3 hinders the demolding of the material. At the same time, the sealing frame 206 continues to seal the cavity 2001, thereby preventing the material from being blown out of the cavity 2001 and falling, affecting the subsequent feeding. When the material is demolded, control the movable mold 3 to move right, and then push the demolded material back into the cavity 2001, so that the material is in contact with the fixed tube 101. Then switch the external air pump to the suction state, so that the vent groove 10103 generates suction force to temporarily adsorb the demolded material. Then control the movable mold 3 to move left to reset. At this time, the material will not fall under the action of the adsorption force, which is convenient for the subsequent rapid feeding of the mechanical hand.

[0044] The contact surface of the outer frame 205 and the sealing frame 206 is provided with a rubber layer.

[0045] In the embodiment, the rubber layer on the contact surface of the outer frame 205 and the sealing frame 206 improves the sealing effect of the sealing ring 202 on the fixed ring 201.

[0046] In the further preferred embodiment of the present application, as shown in Figures 2-4 A plurality of pressure relief grooves 20501 are formed on the outer frame 205.

[0047] In the embodiment, after the fixed die 2 and the movable die 3 are closed, the sealing frame 206 is inserted into the outer frame 205, at this time, the pressure relief grooves 20501 are separated from the cavity 2001, therefore, when the injection molding is performed, the molten plastic will not enter the pressure relief grooves 20501, when the injection molding is completed and the demolding is performed, the movable die 3 is controlled to move to the left, at this time, the space between the movable die 3 and the cavity 2001 is enlarged, which is convenient for the material to be demolded, and the pressure relief grooves 20501 are in communication with the cavity 2001, therefore, when the material is demolded by blowing air through the air vent groove 10103, if the material is separated from the cavity 2001, the gas blown out by the air vent groove 10103 will flow to the pressure relief grooves 20501 through the gap between the material and the cavity 2001, and then be discharged through the pressure relief grooves 20501, thereby avoiding the situation that the gas continuously blows into the cavity 2001 from the air vent groove 10103 during the demolding process, the air pressure in the cavity 2001 is increased, and then the material is extruded, which causes the molded material to be damaged.

[0048] The above embodiments are only the preferred embodiments of the present application, and are not used to limit the scope of the present application, therefore, equivalent changes made according to the content described in the claims of the present application should be included in the scope of the claims of the present application.

Claims

1. An automated molding die, comprising a worktable (1); a fixed die (2) mounted on the worktable (1); and a movable die (3) slidably connected to the worktable (1); characterized in that, It also includes several fixed tubes (101) connected within the fixed mold (2); the fixed mold (2) has a cavity (2001); the fixed mold (2) is provided with an air inlet pipe; each fixed tube (101) has a ventilation groove (10103); each ventilation groove (10103) is connected to the air inlet pipe within the fixed mold (2); each ventilation groove (10103) is connected to the cavity (2001); each fixed tube (101) is fixedly connected with a first electric push rod (105). Each fixed tube (101) is connected to a fixed ring (201) in the middle; each first electric push rod (105) is connected to a sealing ring (202) at its telescopic end; each sealing ring (202) is connected to a plug (102); each plug (102) is equipped with an exhaust plug (103), and each exhaust plug (103) has several holes; each first electric push rod (105) is connected to a dredging component for dredging the exhaust plug (103).

2. The automated molding die according to claim 1, characterized in that, The unblocking assembly includes a connecting rod (106) connected to a first electric push rod (105); a sliding rod (108) is slidably connected within each connecting rod (106); two sliding grooves (10601) are provided on each connecting rod (106); the left end of each sliding rod (108) passes through the connecting rod (106); an unblocking block (107) is fixedly connected to the left end of each sliding rod (108), and several needles are provided on the left side of each unblocking block (107); each sliding rod... A spring (109) is fixedly connected between the moving rod (108) and the connecting rod (106); two pressure blocks (10801) are provided on each sliding rod (108); each pressure block (10801) passes through the connecting rod (106) and slides in the corresponding groove (10601); two second electric push rods (203) are fixedly connected in each fixed tube (101); a pressing block (204) is fixedly connected to the telescopic end of each second electric push rod (203).

3. The automated molding die according to claim 2, characterized in that, The needles on the unblocking block (107) are made of hard alloy.

4. The automated molding die according to claim 1, characterized in that, It also includes a clamping ring (104); each fixed tube (101) consists of a disassembly part (10101) on the left and a connecting part (10102) on the right; the connecting part (10102) is detachably connected to the fixed mold (2); each disassembly part (10101) is detachably connected to the corresponding connecting part (10102); each plug (102) is detachably connected to the corresponding sealing ring (202); each fixed ring (201) is detachably connected to the corresponding connecting part (10102); each plug (102) has an installation groove (10201); the vent plug (103) is placed in the installation groove (10201); each plug (102) is fixedly connected to a clamping ring (104), which is used to axially clamp and fix the vent plug (103) placed in the installation groove (10201).

5. An automated molding die according to claim 2, characterized in that, Each pressure block (10801) is fixed with a sealing plate (10802) for sealing the groove (10601).

6. An automated molding die according to claim 4, characterized in that, Both the sealing ring (202) and the fixing ring (201) have a rubber layer on their contact surfaces.

7. An automated molding die according to claim 6, characterized in that, The right side of the fixing ring (201) is flared.

8. An automated molding die according to claim 1, characterized in that, It also includes an outer frame (205) and a sealing frame (206); the outer frame (205) is fixedly connected to the fixed mold (2); the sealing frame (206) is fixedly connected to the moving mold (3); the sealing frame (206) and the outer frame (205) are fitted with a clearance.

9. An automated molding die according to claim 8, characterized in that, The contact surfaces of the outer frame (205) and the sealing frame (206) are both provided with a rubber layer.

10. An automated molding die according to claim 9, characterized in that, Several pressure relief grooves (20501) are provided on the outer frame (205).

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