TWI394648B - Injection molding method of stone-based composite material and injection molding equipment - Google Patents

Description

Injection molding method and injection molding equipment for stone-based composite material

The invention relates to an injection molding method and device, in particular to an injection molding method for a stone-based composite material.

As we all know, plastic is a petrochemical product, which is obtained from non-renewable petroleum resources. Plastic products have been widely used in various fields of the national economy such as automobiles, home appliances, and daily necessities. Plastic products have become an indispensable product of society.

However, while providing a large amount of organic raw materials and energy, oil also brings about environmental degradation, greenhouse gas effects and white pollution, which are unsustainable development paths at the expense of the environment, and the storage of petroleum resources is limited. Therefore, it is urgent to get rid of the heavy dependence on oil.

At the same time, there are still a large number of stones in nature, especially in the development of various mineral resources, accompanied by many stone materials that cannot be used as target products. These stones need to be excavated and treated in advance, which consumes a lot of manpower and material resources, but these stones are excavated. Not only can't be used, it can only be used as waste, but it also affects the environment.

At present, these stones are also used sporadically. They are used as raw materials for sanitary ware to produce sanitary ware. At present, the more mature molding methods mainly process the finished products by casting vibration method, such as casting vibration method to produce the basin. The process flow: mixing→casting→vibration→curing → Post-processing → surface treatment. Mixing is to mix various additives in different proportions to make them uniform. Casting is the casting of the mixed material into a mold and then shaking to make the material dense in the mold. The curing is carried out by placing the cast mold for 30 minutes to 60 minutes after the raw material is coagulated and formed. Post-processing is the process of trimming the product by opening the mold. The final surface treatment sprays a coating process on the outer surface of the article.

The above method for producing products by using stone has complicated production process, low yield of products, low production efficiency, high production cost, and difficulty in mass production, and utilization of stone materials. The amount is very limited, and it is impossible to consume existing stone materials at the same time, nor can it replace plastic products on a large scale.

The above-mentioned products produced by the method for producing articles by stone have poor quality and are unstable, and cannot be applied to products requiring high quality, and can only be used for low-grade products and products and occasions where product quality is not high, such as sanitary ware.

The above method for producing articles using stone materials is difficult to produce complex structures and special surface treated articles due to the limitations of compacting methods and molds, not to mention the production of precision parts such as automobile parts, electrical parts or parts.

Using stone to produce products, people always think that only by using this casting vibration method can they get such products, so they have been in a stagnant stage and have not made progress. Therefore, it is of great practical significance to develop a new stone forming process instead of plastic. It has great economic value.

The technical problem to be solved by the present invention is to provide an injection molding method for a stone-based composite material in view of the above-mentioned deficiencies of the prior art, so that the product can be produced at low cost and high efficiency, and the quality of the product is stable and reliable. The invention also provides an injection molding device for a stone-based composite material, which can fully realize the above injection molding method, and solves the problems existing in the existing stone material-based composite material forming method.

The technical solution adopted by the patent for solving the above technical problem is: an injection molding method of a stone-based composite material, which is characterized in that it comprises the following steps: a. placing the raw materials used in the feeding device, and then passing the feeding device The inner pressing part pushes the raw material into the pre-molding barrel of the pre-plasticizing device; b. the pre-molding barrel maintains the temperature of 15~55 ° C, and compacts the raw material with the rotation of the pre-plasticized screw Delivery to the injection barrel of the sealing device; c. The injection device injects the raw material in the injection barrel into the mold through the mold gate under the condition of the injection force of 50~180Mpa; d. keeps the mold temperature at 140~200°C, Curing time is 40 seconds to 300 seconds; e. mold opening to remove the product.

In the above injection molding method, the dwell time can also be selected according to actual conditions.

In the above injection molding method, it is preferable that the pressing member is a pressing head, so that the operation is convenient and controllable, and the pressing area is large and the efficiency is high.

After extensive research, in response to major changes in raw materials, the Applicant has found that by studying and changing injection molding methods, it is possible to produce qualified products.

The raw materials used in the present invention are: stone material as a main raw material and then unsaturated polyester, glass fiber and various additives are thoroughly mixed.

In order to better implement the above method, the present invention also provides an injection molding apparatus.

An injection molding apparatus for a stone-based composite material, comprising a pre-plasticizing device, a sealing device and an injection device; the sealing device comprises a collecting block and a sealing rod, and one side of the collecting block is provided with each other a first passage and a second passage, the first passage is connected to the pre-molding device, the second passage is connected to the injection device, and the sealing rod is placed at the communication between the first passage and the second passage; the collecting block A guiding sleeve is also mounted thereon, and the sealing rod passes through the hole in the middle of the guiding sleeve to enter the communication between the first passage and the second passage of the collecting block; the injection device is in contact with the mold gate.

The above-mentioned stone-based composite injection molding apparatus, wherein the injection mechanism further comprises a feeding device fixedly connected to the pre-molding device.

The above-mentioned injection molding equipment for stone-based composite materials, wherein the feeding device package The pressing material driving device, the feeding inclined bucket, the storage cylinder and the pressing material head arranged in sequence are driven by the pressing material driving device, and the pressing material head is sealed and moved in the storage cylinder to press the raw material into the pre-plasticizing device. .

The above-mentioned stone-based composite injection molding apparatus, wherein the charging device further comprises a feeding device bottom plate connected to the pre-plasticizing device.

The above-mentioned stone-based composite injection molding apparatus, wherein the feeding device comprises a storage cylinder, and a feeding bottom plate and a feeding device bottom plate are respectively disposed at two ends thereof; a feeding sliding plate is arranged above the feeding bottom plate, and the feeding bottom plate is The feeding slides are relatively movable; the feeding bottom plates are provided with guiding rails on both sides thereof to guide the feeding slides; and the guiding rails are provided with a flat push cylinder outside, and the feeding slides are translated by the pulling blocks.

The above-mentioned stone-based composite injection molding apparatus, wherein a large cylinder is provided with a cylinder bracket and a press cylinder above a large hole; the press cylinder is provided with an interconnecting press piston and pressure The piston rod is connected; the bottom end of the pressing piston rod is connected with a pressing head through a flange, and a preparation cylinder is arranged above another large hole of the feeding sliding plate.

The above-mentioned injection molding equipment for stone-based composite materials, wherein the pressing material driving device is a pressing material cylinder, the pressing material piston of the pressing material cylinder is connected with the upper end of the pressing material piston rod, and the pressing end of the pressing material piston rod is connected with the pressing material head The pressure head is sealed and moved when the material is pressed in the storage cylinder.

The above-mentioned injection molding equipment for stone-based composite materials, wherein the pressing piston rod is connected to the pressing head through a flange, and the sealing ring is sealed between the flange and the pressing head.

The above-mentioned stone-based composite injection molding apparatus, wherein the pre-plasticizing device comprises a pre-plasticizing device, a pre-molding barrel and a pre-molding screw; the pre-molded screw is placed in the pre-molding barrel and is pre-formed Plastic drive unit drive; The front end of the pre-molded barrel is provided with a pre-plastic barrel.

The above-mentioned stone-based composite injection molding apparatus, wherein the pre-plasticizing apparatus further comprises a pre-molded support, the pre-molded cylinder is mounted on one side of the pre-formed support, and the feeding in the feeding device The device floor is connected.

The above-mentioned stone-based composite injection molding apparatus, wherein the sealing device further comprises a sealing cylinder front cover, a sealing oil cylinder and a sealing cylinder rear cover disposed above the collecting block; the sealing oil cylinder A sealing piston and a sealing piston rod are arranged inside, and the sealing piston rod is connected with the sealing rod.

The above-mentioned stone-based composite injection molding apparatus, wherein the collecting block is further provided with an adjusting bolt, and the adjusting bolt passes through the sealing cylinder rear cover to enter the sealing piston of the sealing cylinder body.

The above-mentioned injection molding apparatus of a stone-based composite material in which a lower portion of the current collecting block is fixed by a current collecting block support frame.

The above-mentioned stone-based composite injection molding apparatus, wherein the injection device comprises an injection barrel, an injection base, an injection rod and an injection driving device; the injection rod is placed in the injection barrel and driven by the injection driving device The injection barrel is installed in the second passage of the collecting block, the injection barrel and the injection driving device are mounted on the injection seat, and the front barrel and the small nozzle are mounted on the other side of the collecting block, the small nozzle and The mold gates are in contact.

The above-mentioned stone-based composite injection molding apparatus, wherein the current collecting block is movably connected with the pre-plasticizing barrel, the collecting block and the injection barrel.

The above-mentioned stone-based composite material injection molding apparatus, wherein the injection mechanism further comprises a sizing device; the sizing device comprises a guide rod assembly disposed on the frame; The guide rod assembly comprises a guide rod support and a shot guide rod; the guide rod support is fixed on the frame; and the shot guide rod is fixed on the guide rod support.

The above-mentioned stone-based composite injection molding apparatus, wherein the sizing device further comprises a stencil and a screed driving component fixedly connected with the stencil; the swaying drive component comprises a screed cylinder, a splicing joint and a whole Shifting the piston rod; the screed cylinder is fixed on the injection seat; and the swaying piston rod is fixed on the stencil by a staking joint.

An injection molding device for stone-based composite material, comprising: a pre-plasticizing device, a sealing device and an injection device; the pre-plasticizing device comprises a front plate of the shooting platform, a rear plate of the shooting table, a screw rotating mechanism and a screw a moving mechanism; the screw rotating mechanism is fixed on the rear plate of the shooting platform, and is connected to the injection device, and the screw moving mechanism is disposed on the front plate of the shooting platform; the sealing device comprises a thrust ring and a check ring, and the check ring is disposed at At the outlet end of the injection device, the thrust ring is in contact with the check ring, and the two functions as a sealing material; the injection device comprises a barrel, a transition nozzle, a small nozzle, a screw and a screw head, and the barrel is mounted on the shooting stage The front plate is provided with a screw inside, a screw head is arranged at the top end of the screw, a transition nozzle is arranged at the end of the barrel, and a small nozzle is arranged at the end of the transition nozzle.

Compared with the prior art, the invention has the advantages that the method for producing the product of the invention has the advantages of simple production process, high yield of the produced product, high production efficiency and low production cost, mass production, and production of a large number of products.

The method for producing a product of the invention has the advantages of good quality and stability, can be applied to products requiring high quality, can produce complex structures and special surface treatment products, and can completely replace existing automobile parts, electrical parts or parts, etc. Precision parts.

The product prepared by the molding process has the advantages of good mechanical strength, flame retardancy, heat resistance, corrosion resistance, good electrical performance and low cost, and has wide application range, and is suitable for lamp reflectors, electric heating boxes and automobiles. Ignition, hood and other automotive industries; can also be applied to high-voltage devices, relay bases, coil bobbins, knife switch tables, fuse boxes and other electrical components, as well as for microwave oven tableware, electric iron shells, etc., sanitary ware products such as toilets, basins Daily necessities such as bathtubs can replace most thermosetting plastics and thermoplastics, thereby reducing the use of plastic products and providing strong support and protection for creating resource-saving and environment-friendly industries.

Since the product obtained by the invention can reduce the amount of plastic products used, the amount of petroleum used can be reduced, thereby contributing to saving petroleum resources.

The application of the invention can turn waste stone into waste, which will inevitably generate huge economic and social benefits.

Also, since the main component of the product is stone, since the density and strength of the stone are higher than that of the plastic, the product has better performance than the plastic, so the product can also open up more uses.

The present invention will be described in detail below with reference to the accompanying drawings.

Example 1: Injection molding of a lamp reflector using a stone-based composite material

The prepared raw materials are placed in the storage cylinder of the injection molding equipment, and the pressing material is driven by the pressing material piston to press the raw materials into the preforming cylinder. The pre-molding barrel is set to a temperature of 25 ° C, and then the raw material is forwarded to the injection barrel by the rotation of the pre-plastic screw, and the pre-plastic screw is rotated while retreating. The injection device has an injection pressure of 68-80 MPa and an injection speed of 15 The injection was carried out under the condition of ~25 mm/s, and the raw material was injected into the mold through a mold gate, and the pressure was maintained for 3 seconds, the mold temperature was 160 ° C, and the material was solidified in the mold for 65 seconds. Finally, the mold is taken out to remove the product.

The above products have been tested and have a bending strength of 130 MPa and a tensile strength of 29 MPa. The impact strength is 29KJ/M2, which fully meets the requirements for use.

Example 2: Injection molding of an iron base using a stone-based composite material

The prepared raw materials are placed in the storage cylinder of the injection molding equipment, and the pressing material is driven by the pressing material piston to press the raw materials into the preforming cylinder. The pre-molding barrel is set at a temperature of 17 ° C, and the raw material is forwarded to the injection barrel by the rotation of the pre-plastic screw. The pre-plastic screw is rotated and retracted. The injection device has an injection pressure of 42-52 MPa and an injection speed of 55. The injection was carried out under the condition of ~70 mm/s, and the raw material was injected into the mold through a mold gate, and the pressure was maintained for 2 seconds, the mold temperature was 180 ° C, and the material was solidified in the mold for 35 seconds. Finally, the mold is taken out to remove the product.

The above products were tested to have a flexural strength of 132 MPa, a tensile strength of 31 MPa, and an impact strength of 32 KJ/M2.

Example 3: Injection molding of a car cigarette lighter base using a stone-based composite material

The prepared raw materials are placed in the storage cylinder of the injection molding equipment, and the pressing material is driven by the pressing material piston to press the raw materials into the preforming cylinder. The pre-molding barrel is set to a temperature of 25 ° C, and then the raw material is forwarded to the injection barrel by the rotation of the pre-plastic screw, and the pre-plastic screw is rotated while retreating. The injection device has an injection pressure of 52-63 MPa and an injection speed of 8 The injection was carried out under the condition of ~15 mm/s, and the raw material was injected into the mold through the mold gate. There was no holding time, the mold temperature was 175 ° C, and the material was solidified in the mold for 147 seconds. Finally open the molded product.

The above products were tested to have a flexural strength of 129 MPa, a tensile strength of 28 MPa, and an impact strength of 27 KJ/M2.

Example 4: Injection molding of electrical connectors using composite materials based on stone materials

The prepared raw materials are placed in the storage cylinder of the injection molding equipment, and the pressing material is driven by the pressing material piston to press the raw materials into the preforming cylinder. The pre-molding barrel is set at a temperature of 20 ° C, and the raw material is forwarded to the injection barrel by the rotation of the pre-plastic screw. The pre-plastic screw is rotated and retracted. The injection device has an injection pressure of 26-32 MPa and an injection speed of 8 Injection under ~10mm/s, the original The material was injected into the mold through a mold gate, held for 7 seconds, the mold temperature was 168 ° C, and the material was cured in the mold for 60 seconds. Finally, the mold is taken out to remove the product.

The above products have been tested to have a flexural strength of 135 MPa, a tensile strength of 33 MPa, and an impact strength of 32 KJ/M2, which fully meets the requirements of electrical connectors.

Example 5: Injection molding of an electric kettle base using a stone-based composite material

The prepared raw materials are placed in the storage cylinder of the injection molding equipment, and the pressing material is driven by the pressing material piston to press the raw materials into the preforming cylinder. The pre-molding barrel is set at a temperature of 25 ° C, and the raw material is forwarded to the injection barrel by the rotation of the pre-plastic screw. The pre-plastic screw is rotated and retracted. The injection device has an injection pressure of 40-50 MPa and an injection speed of 18 The injection was carried out under the condition of ~25 mm/s, and the raw material was injected into the mold through a mold gate, and the pressure was maintained for 1 second, the mold temperature was 150 ° C, and the material was solidified in the mold for 45 seconds. Finally, the mold is taken out to remove the product.

The above products were tested to have a flexural strength of 132 MPa, a tensile strength of 30 MPa, and an impact strength of 31 KJ/M2.

It can be proved from the above embodiments that the present invention uniquely creates a stone-based composite material injection molding method to form a stone-based product, and the method adopted is completely feasible, and the object of the present invention is achieved.

The present invention only exemplifies the above-mentioned typical product injection molding method, and can further expand and change the production conditions and the produced products under the same molding mechanism, and these can be changed by these methods, and still belong to the present invention. The scope of protection.

The present invention also provides a production apparatus designed in accordance with the above injection molding method.

An injection molding apparatus for a stone-based composite material, as shown in Figs. 1 and 2, includes a feeding device 2, a pre-plasticizing device 3, a sealing device 4, an injection device 5, a finishing device 6, and a cleaning device 7.

As shown in Figures 3 and 4, the storage cylinder 301 in the charging device 2 is used for holding The stone-based composite material 300 has a storage cylinder liner 302 outside the storage cylinder 301, and a spiral groove between the storage cylinder 301 and the storage cylinder liner 302 can pass a temperature control liquid to control the temperature. Below the storage cylinder 301 is a feeding device bottom plate 303. Above the storage cylinder 301 is a feeding inclined bottom plate 304, and a feeding inclined bowl 305 is fixed on the feeding inclined bottom plate 304. Above the feed ramp 305 there is a feed cylinder bottom plate 306. The loading device bottom plate 303, the feed ramp bottom plate 304, and the feed cylinder bottom plate 306 are connected in series by a tie rod 315. Above the feed cylinder bottom plate 306, there are a press cylinder front cover 308, a press cylinder 309, and a press cylinder rear cover 310, respectively. The press cylinder 309 has a press piston 311 and a press piston rod 312 therein. Below the binder piston rod 312 is connected to the binder head 314 via a binder connection flange 313.

The press cylinder front cover 308 and the press cylinder rear cover 310 respectively have through holes for allowing oil to enter and exit the press cylinder 309. When the oil enters the lower portion of the press cylinder 309 through the press cylinder front cover 308, the press piston 311 is raised, and the oil of the upper portion of the press cylinder 309 flows out through the press cylinder rear cover 310. The rise of the binder piston 311 causes the binder piston rod 312, the binder connection flange 313, the binder head 314, and the like to rise, and finally causes the binder head 314 to exit the cartridge 301. At this time, the stone-based composite material 300 can be placed in the storage cylinder 301 through the feeding inclined bucket 305.

When the oil enters the upper portion of the press cylinder 309 through the press cylinder rear cover 310, the press piston 311 is lowered, and the oil of the lower portion of the press cylinder 309 flows out through the press cylinder front cover 308. The lowering of the binder piston 311 causes the binder piston rod 312, the binder connection flange 313, the binder head 314, and the like to descend, and finally the binder head 314 enters the cartridge 301. Thus, the binder head 314 will squeeze the stone-based composite material 300 in the magazine 301 to allow the stone-based composite material 300 to enter the pre-plasticizing device 3 below the charging device 2.

There is a sealing ring 316 on the outer edge of the binder connecting flange 313. When the pressing head 314 enters the storage cylinder 301 and presses the stone-based composite material 300, the sealing ring 316 closely matches the storage cylinder 301 to prevent The stone-based composite material 300 passes over the outer edge of the seal ring 316.

There is a feeding inclined bucket cover 319 at the mouth of the feeding inclined bucket 305, and the feeding inclined bucket cover 319 can be turned up and down to play the role of safety and dustproof.

In the present embodiment, the binder piston 311 is used to drive the binder head 314 to move, and the motor or other means can be used to drive the binder head 314 to move, which is also within the protection scope of the present invention.

As shown in Figs. 5 and 6, the charging device 2 has another structure. The storage drum 301 in the charging device 2 is used to hold a stone-based composite material 300. Below the storage cylinder 301 is a feeding device bottom plate 303. Above the storage cylinder 301 is a feeding bottom plate 501. Above the feeding bottom plate 501 is a feeding slide 502. The feed base plate 501 and the feed slide 502 are relatively movable. Guide rails 503 are provided on both sides of the feed bottom plate 501 to guide the feed slide 502. There is a push cylinder 504 outside the guide rail 503, and the feed slide 502 can be translated by the pull block 505. Above one of the large holes of the feeding slide 502, there are a cylinder bracket 307, a cylinder front cover 308, a press cylinder 309, and a press cylinder rear cover 310. The press cylinder 309 has a press piston 311 and a press piston rod 312 therein. Below the binder piston rod 312 is connected to the binder head 314 via a binder connection flange 313. Above the other large hole of the loading slide 502 is a preparation cylinder 506.

The press cylinder front cover 308 and the press cylinder rear cover 310 respectively have through holes for allowing oil to enter and exit the press cylinder 309. When the oil enters the lower portion of the press cylinder 309 through the press cylinder front cover 308, the press piston 311 is raised, and the oil of the upper portion of the press cylinder 309 flows out through the press cylinder rear cover 310. The rise of the binder piston 311 causes the binder piston rod 312, the binder connection flange 313, the binder head 314, and the like to rise, and finally causes the binder head 314 to exit the cartridge 301. A stone-based composite material 300 may be placed in advance in the preparation cylinder 506. The feed slide 502 is pulled by the push cylinder 504 to move the preparation cylinder 506 above the storage drum 301, at which time the stone-based composite material 300 in the preparation cylinder 506 falls into the storage drum 301.

The feed slide 502 is then pulled through the push cylinder 504 to move the press head 314 above the storage drum 301. When the oil passes through the press cylinder back cover 310, it enters the upper portion of the press cylinder 309. The pressure piston 311 is lowered, and the oil of the lower portion of the pressure cylinder 309 is caused to flow out through the cylinder front cover 308. The lowering of the binder piston 311 causes the binder piston rod 312, the binder connection flange 313, the binder head 314, and the like to descend, and finally the binder head 314 enters the cartridge 301. Thus, the binder head 314 will squeeze the stone-based composite material 300 in the magazine 301 to allow the stone-based composite material 300 to enter the pre-plasticizing device 3 below the charging device 2.

The outer edge of the binder connection flange 313 has a sealing ring 316. When the binder head 314 enters the storage cylinder 301 and presses the stone-based composite material 300, the sealing ring 316 closely matches the storage cylinder 301 to prevent The stone-based composite material 300 passes over the outer edge of the seal ring 316.

As shown in Figs. 7 and 8, the pre-formed support 701 in the pre-molding device 3 is directly below the charging device 2. The pre-molding seat 702 is mounted on a pre-molded support 701 having a coupling 703, a bearing 704, a bearing 705, a bearing 706, and an oil seal cover 707 therein. The oil motor 708 is mounted on the preform 702 and the shaft of the oil motor 708 is coupled to the coupling 703. The pre-molding barrel 709 is mounted on the other side of the pre-formed support 701. The pre-molded barrel 709 has a pre-molded barrel liner 710, a spiral groove between the pre-molded barrel 709 and the pre-molded barrel liner 710. Temperature control solution can be used to control the temperature. The front end of the pre-molding barrel 709 has a pre-plasticizing barrel 711, and the pre-molding barrel 709 has a pre-molded screw 712 therein. The pre-molding screw 712 is coupled to the coupling 703.

The oil motor 708 is rotated by the pressure oil, and the oil motor 708 drives the pre-plastic screw 712 to rotate by the coupling 703. The stone-based composite material 300 is pressed into the feed port of the pre-molding barrel 709 by the feeding device 2 through the pre-molding support 701. The stone-based composite material 300 entering the feed port of the preform cylinder 709 will advance along the pre-plastic cylinder 709 due to the rotation of the pre-plastic screw 712, and enters the seal through the pre-plastic cylinder 711. In the material device 4.

In the present embodiment, the oil motor 708 is used to pre-mold the screw 712, and the screw 712 may also be pre-molded by a motor or other means, which is also within the scope of the present invention.

As shown in Figures 9 and 10, the sealing device 4 includes a current collecting block 901 and a sealing member. The material rod 909, one side of the current collecting block 901 is provided with a first passage 914 and a second passage 915 communicating with each other, the first passage 914 is connected with the pre-plastic device 3, and the second passage 915 is connected with the injection device 5, and the sealing material is sealed. The rod 909 is placed in communication with the first passage 914 and the second passage 915; the current collecting block 901 in the sealing device 4 is connected to the pre-plastic front barrel 711 in the pre-plasticizing device 3. Above the current collecting block 901, there are a pillar 902, a sealing cylinder front cover 903, a sealing cylinder 904, and a sealing cylinder rear cover 905. The sealing cylinder 904 has a sealing piston 906 and a sealing piston rod 907 therein. The sealing piston rod 907 is connected to the sealing rod 909 by Huff 908.

The guiding block 901 is further provided with a guiding sleeve 910. The sealing rod 909 passes through the hole in the middle of the guiding sleeve 910 and enters the communication between the first passage 914 and the second passage 915 inside the collecting block 901, which is better. Guide the sealing rod 909.

The sealing cylinder front cover 903 and the sealing cylinder rear cover 905 respectively have through holes (not shown) to allow oil to enter and exit the sealing cylinder 904. When the oil enters the lower portion of the sealing cylinder 904 through the sealing cylinder front cover 903, the sealing piston 906 is raised, and the oil of the upper portion of the sealing cylinder 904 is caused to flow out through the sealing cylinder rear cover 905. The rise of the sealing piston 906 causes the Huff 908, the sealing rod 909, and the like to rise, and finally the sealing rod 909 no longer blocks the lower discharge hole of the collecting block 901. At this time, the stone-based composite material 300 of the pre-plasticizing device 3 can enter the lower hole of the collecting block 901. When the machine is pre-molded, the lower discharge hole of the current collecting block 901 is opened, so that the stone-based composite material 300 enters the lower hole of the current collecting block 901.

When the oil passes through the sealing cylinder rear cover 905 into the upper portion of the sealing cylinder 904, the sealing piston 906 is lowered, and the oil of the lower portion of the sealing cylinder 904 is discharged through the sealing cylinder front cover 903. The lowering of the sealing piston 906 causes the Huff 908, the sealing rod 909, and the like to descend, and finally the sealing rod 909 blocks the lower discharge hole of the collecting block 901. At this time, the stone-based composite material 300 in the pre-plasticizing device 3 cannot enter the lower hole of the collecting block 901, and the stone-based composite material 300 in the lower hole of the collecting block 901 cannot be reversed. When the machine is injected, it can be prevented The stone-based composite material 300 in the lower hole of the stop sump 901 flows back to the pre-plasticizing device 3.

A sealing ring 911 and a sealing ring gland 912 are also mounted over the guide sleeve 910. The sealing ring 911 and the sealing rod 909 are tightly fitted to prevent the stone-based composite material 300 from crossing the outer edge of the sealing ring 911.

An adjusting bolt 913 is mounted on the sealing cylinder rear cover 905. The adjusting bolt 913 passes through the sealing cylinder rear cover 905 and enters the sealing cylinder 906 of the sealing cylinder 904. The adjusting bolt 913 can limit the rising of the sealing piston 906. The highest position. Rotating the adjusting bolt 913, adjusting the position of the adjusting bolt 913 on the sealing cylinder rear cover 905, can adjust the highest position of the rising of the sealing piston 906, and correspondingly adjust the highest position of the rising of the sealing rod 909, that is, the sealing rod 909 and The distance of the opening of the current collecting block 901, that is, the size of the flow channel opening is adjusted.

As shown in Figs. 11 and 12, the injection device 5 is below the sealing device 4. An injection barrel 1101 is mounted in the second passage 915 on the collecting block 901. An injection barrel bushing 1102 is arranged outside the injection barrel 1101, and a spiral groove between the injection barrel 1101 and the injection barrel bushing 1102 can be warmed. Control the liquid to control the temperature. The injection barrel 1101 is mounted on the injection base 1104 using a nut 1103. An injection cylinder front cover 1105, an injection cylinder 1106, and an injection cylinder rear cover 1107 are also mounted on the injection base 1104. The injection cylinder 1106 has an injection piston 1108 and an injection piston rod 1109 therein. The injection piston rod 1109 is coupled to the injection rod 1111 by a Hough 1110. The other side of the current collecting block 901 is attached with a front barrel 1112, a transition nozzle 1113, a transition nozzle bushing 1114, and a small nozzle 1115. The spiral groove between the transition nozzle 1113 and the transition nozzle bushing 1114 can pass a temperature control fluid to control the temperature.

When pre-molded, the outlet of the small nozzle 1115 is sealed by a mold (not shown). The stone-based composite material 300 in the pre-plasticizing device 3 enters the lower hole of the collecting block 901, and pushes the injection rod 1111 to the right. The injection rod 1111 will drive Huff 1110, injection The piston 1108 and the like are all shifted to the right. The left side of the injection cylinder 1106 and the injection cylinder rear cover 1107 have through holes, respectively, so that the oil can enter and exit the injection cylinder 1106. When the injection piston 1108 is moved to the right, the oil on the right side of the injection cylinder 1106 will flow out through the injection cylinder rear cover 1107, and the left side will have oil flowing through the hole of the injection cylinder 1106.

When injecting, when the oil enters the right side of the injection cylinder 1106 through the injection cylinder back cover 1107, the injection piston 1108 is moved to the left, and the oil on the left side of the injection cylinder 1106 flows out through the injection cylinder front cover 1105. The left shift of the injection piston 1108 drives the Huff 1110, the injection rod 1111, and the like to the left, and finally causes the injection rod 1111 to push the stone-based composite material 300 in the injection barrel 1101. The stone-based composite material 300 is finally passed into the mold (not shown) through the front barrel 1112, the transition nozzle 1113, and the small nozzle 1115 under the thrust of the injection rod 1111.

In the present embodiment, the injection piston 111 is used to drive the injection rod 1111 to move, and the motor or other means can be used to drive the injection rod 1111 to move, which is also within the protection scope of the present invention.

As shown in Figs. 13 and 14, the above-described preplasticizing device 3, sealing device 4, and injection device 5 are combined to form another structure. A barrel 1302, a transition nozzle 1304, and a small nozzle 1305 are attached to the stage front plate 1301. The front end of the screw 1306 inside the barrel 1302 has a thrust ring 1307, a check ring 1308, and a screw head 1309. The other end of the screw 1306 is connected to the oil motor 1311 via a coupling 1310. The oil motor is mounted on the rear stage plate 1312. The front plate 1301 of the shooting table has a cylinder 1313, and the piston rod 1314 is connected to the rear plate 1312.

During the pre-molding, the oil motor 1311 rotates the screw 1306 through the coupling 1310, so that the stone-based composite material 300 enters the front end of the barrel 1302 along the groove on the screw 1306. At the time of injection, the oil pushes the piston rod 1314, and the screw 1306 is moved by the rear stage plate 1312 and the coupling 1310, so that the stone-based composite material 300 passes through the transition nozzle 1304 and is small. The nozzle 1305 finally enters the mold (not shown). The check ring 1308 acts as a sealant upon injection.

As shown in Fig. 15, the shifting device 6 includes a full-moving cylinder 1501, a shifting joint 1502, a guide rod holder 1503, a shot guide rod 1504, and a piston rod 1505. The adjusting piston rod 1505 is fixed on the template 1506 by the adjusting joint 1502, the guiding rod support 1503 is fixed on the frame (not shown), and the shooting table guide 1504 is fixed on the guiding rod support 1503, and the moving cylinder is moved. 1501 is fixed to the injection seat 1104. The injection seat 1104 and the stage guide 1504 are relatively movable, and the adjustment piston rod 1505 is relatively movable with the adjustment cylinder 1501. When the oil-driven traverse cylinder 1501 moves relative to the aligning piston rod 1505, the injection seat 1104 moves over the gantry guide 1504.

As shown in Fig. 16, a cleaning device 7 is attached to a frame (not shown), and the cleaning device 7 is a header support frame 1601. The filling system is moved using the shifting device 6 so that the current collecting block 901 reaches above the current collecting block support frame 1601.

The current collecting block 901 is fixed to the current collecting block support frame 1601, and the screw between the current collecting block 901 and the pre-molding front barrel 711 is removed, and the screw between the current collecting block 901 and the injection barrel 1101 is removed. At this time, by using the entire shifting device 6, the injection mechanism can be separated, and the residual stone-based composite material 300 in the injection cylinder 1101 and the preformed cylinder 709 can be easily cleaned.

2‧‧‧Feeding device

3‧‧‧Preformed device

4‧‧‧Filling device

5‧‧‧Injection device

6‧‧‧Removal device

7‧‧‧Drawing device

300‧‧‧Composite materials

301‧‧‧ storage barrel

302‧‧‧There is a storage tank bushing on the outside

303‧‧‧Feeding device bottom plate

304‧‧‧Feeding bucket bottom plate

305‧‧‧feeding bucket

306‧‧‧Feeding cylinder bottom plate

307‧‧‧cylinder bracket

308‧‧‧Pressure cylinder front cover

309‧‧‧Pressure cylinder

310‧‧‧press cylinder back cover

311‧‧‧Pressure piston

312‧‧‧Pressure piston rod

313‧‧‧Block connection flange

314‧‧‧ Pressing head

315‧‧‧ lever

316, 911 ‧ ‧ sealing ring

319‧‧‧Feeding bucket cover

501‧‧‧Feeding plate

502‧‧‧Feed skateboard

503‧‧‧ Guide rail

504‧‧‧Pushing cylinder

505‧‧‧ can be pulled through the block

506‧‧‧ Preparation cylinder

701‧‧‧ support

702‧‧‧Preformed seat

703, 1310‧‧‧ coupling

704, 705, 706‧ ‧ bearings

707‧‧‧ oil cover

708, 1311‧‧‧ oil motor

709‧‧‧Preformed barrel

710‧‧‧Preformed cylinder liner

711‧‧‧Pre-plastic barrel

712‧‧‧Preformed screw

901‧‧‧ Collector

902‧‧‧ pillar

903‧‧‧Filling cylinder front cover

904‧‧‧Filling cylinder

905‧‧‧Filling cylinder back cover

906‧‧‧Cylinder seal piston

907‧‧‧Filling piston rod

908, 1110‧‧‧ Huff

909‧‧‧Corresponding adjustment of the sealing rod

910‧‧‧ Guide sets

912‧‧‧ sealing ring gland

913‧‧‧Adjustment bolts

914‧‧‧ first channel

915‧‧‧second channel

1101‧‧Injection barrel

1102‧‧Injection barrel bushing

1103‧‧‧ Nuts

1104‧‧‧ fixed in the injection seat

1106‧‧Injection Cylinder

1107‧‧‧Injection cylinder back cover

1111‧‧‧Injection rod

1112‧‧‧ front barrel

1113‧‧‧Transition nozzle

1114‧‧‧Transition nozzle bushing

1115, 1305‧‧‧ small nozzle

1301‧‧‧Front front panel

1302‧‧‧Machine

1304‧‧‧Transition nozzle

1305‧‧‧Small nozzle

1306‧‧‧ screw

1307‧‧‧ thrust ring

1308‧‧‧Reverse ring

1309‧‧‧ screw head

1312‧‧‧ screw head

1313‧‧‧Cylinder

1314‧‧‧ piston rod

1501‧‧‧Removing cylinder

1502‧‧‧Move joint

1503‧‧‧Guide rod support

1504‧‧‧Target guide

1505‧‧‧Removing piston rod

1506‧‧‧ template

1601‧‧‧ Collector block support

Fig. 1 is a view showing the overall outline of the injection system of the present invention.

Fig. 2 is a cross-sectional view showing the overall shape of the shot filling system of the present invention.

Figure 3 is an assembled view of the charging device of the present invention.

Figure 4 is a cross-sectional view of the charging device of the present invention.

Figure 5 is an assembled view of another charging device of the present invention.

Figure 6 is a cross-sectional view showing another feeding device of the present invention.

Figure 7 is an assembled view of the preforming apparatus of the present invention.

Figure 8 is a cross-sectional view of the preforming apparatus of the present invention.

Figure 9 is an assembled view of the sealing device of the present invention.

Figure 10 is a cross-sectional view of the sealing device of the present invention.

Figure 11 is an assembled view of the injection device of the present invention.

Figure 12 is a cross-sectional view of the injection device of the present invention.

Figure 13 is an assembled view of the mechanism for combining preforming and injection of the present invention.

Fig. 14 is a cross-sectional view showing the other direction of Fig. 13.

Figure 15 is an assembled view of the entire shifting device of the present invention.

Figure 16 is an assembled view of the cleaning device of the present invention.

2‧‧‧Feeding device

3‧‧‧Preformed device

4‧‧‧Filling device

5‧‧‧Injection device

6‧‧‧Removal device

7‧‧‧Drawing device

Claims (18)

An injection molding method for a stone-based composite material, comprising: the following steps: a. placing the raw materials used in a feeding device (2), and then passing the pressing members in the feeding device (2) The raw material is pushed into a pre-molding barrel (709) of a pre-plasticizing device (3); the pressing member of the feeding device (2) is a pressing head (314); b. the pre-molded barrel (709) is maintained The temperature is 15~55 ° C, and the raw material is compacted and conveyed into an injection barrel (1101) of a material device (4) with the rotation of a pre-plastic screw (712); c. an injection device (5) is Under the condition of 50~180Mpa, the raw material in the injection barrel (1101) is injected into the mold through the mold gate; d. The mold temperature is maintained at 140~200°C, and the curing time is 40 seconds to 300 seconds; e. Remove the product. An injection molding apparatus for a stone-based composite material, comprising: a feeding device (2), a pre-plasticizing device (3), a material feeding device (4) and an injection device (5); The device (2) is fixedly connected to the pre-plastic device (3); the sealing device (4) comprises a current collecting block (901) and a material rod (909), and one side of the current collecting block (901) is arranged There is a first passage (914) and a second passage (915) connected to each other, the first passage (914) being connected to the pre-plastic device (3), the second passage (915) and the injection device ( 5) connecting, the sealing rod (909) is placed at a communication between the first passage (914) and the second passage (915); A guiding sleeve (910) is further mounted on the collecting block (901), and the sealing rod (909) passes through a hole in the middle of the guiding sleeve (910) to enter the first portion of the collecting block (901). The passage of the passage (914) with the second passage (915); the injection device (5) is in contact with the mold gate. An injection molding apparatus for a stone-based composite material according to claim 2, characterized in that the feeding device (2) comprises a pressing material driving device arranged in order from top to bottom, and a feeding inclined bucket (305) a hopper (301) and a ram (314), under the driving of the ram drive, the ram (314) is sealed in the hopper (301) to press the material into the container In the pre-plastic device (3). An injection molding apparatus for a stone-based composite material according to claim 3, characterized in that the charging device (2) further comprises a feeding device bottom plate (303), and the pre-plasticizing device (3) )connection. An injection molding apparatus for a stone-based composite material according to claim 2, wherein the feeding device (2) comprises a storage cylinder (301), and a feeding bottom plate is respectively disposed at both ends thereof ( 501) and a feeding device bottom plate (303); a feeding slide plate (502) is disposed above the feeding bottom plate (501), and the feeding bottom plate (501) and the feeding sliding plate (502) are relatively movable; the feeding bottom plate (501) A guide rail (503) is disposed on both sides to guide the feeding slide plate (502); a flat push cylinder (504) is disposed outside the guide rail (503), which passes A pull block (505) translates the feed slide (502). An injection molding apparatus for a stone-based composite material according to claim 5, characterized in that: a cylinder bracket (307) and a press cylinder are respectively disposed above a large hole of the feeding slide plate (502). (309); the press cylinder (309) is provided with a binder piston (311) connected to each other and connected to a binder piston rod (312); the bottom end of the binder piston rod (312) passes through a flange (313) A pressure head (314) is connected, and a preparation cylinder (506) is disposed above the other large hole of the feeding slide (502). An injection molding apparatus for a stone-based composite material according to the fourth or sixth aspect of the invention, characterized in that the pressure material driving device is the pressure material cylinder (309), and the pressure material cylinder (309) The press piston (311) is connected to the upper end of the press piston rod (312), and the press head (314) is connected to the lower end of the press piston rod (312), and the press head (314) is in the storage The cylinder (301) is sealed and moved when the material is pressed. An injection molding apparatus for a stone-based composite material according to claim 7, characterized in that the pressure piston rod (312) is connected to the pressure head (314) through the flange (313). The flange (313) is sealed from the binder head (314) by a sealing ring (316). An injection molding apparatus for a stone-based composite material according to claim 8 is characterized in that the pre-plasticizing device (3) comprises a pre-plasticizing device, a pre-molding barrel (709) and a a pre-molding screw (712); the pre-plastic screw (712) is placed in the pre-molding barrel (709) and driven by the pre-molding drive; A front pre-plastic barrel (711) is disposed at the front end of the pre-molded barrel (709). An injection molding apparatus for a stone-based composite material according to claim 9 is characterized in that the pre-plasticizing device (3) further comprises a pre-plasticized support (701), the pre-molded barrel ( 709) is mounted on one side of the pre-formed support (701) that is coupled to the feeder floor (303) in the charging device (2). An injection molding apparatus for a stone-based composite material according to claim 10, characterized in that the sealing device (4) further comprises a material cylinder disposed above the current collecting block (901). a front cover (903), a material cylinder (904) and a tank rear cover (905); the seal cylinder (904) is provided with a material piston (906) and a material piston rod (907). The seal piston rod (907) is coupled to a feed rod (909). An injection molding apparatus for a stone-based composite material according to claim 11, wherein the current collecting block (901) is further provided with an adjusting bolt (913), and the adjusting bolt (913) is worn. The sealing cylinder back cover (905) passes over the sealing piston (906) in the cylinder of the sealing cylinder (904). An injection molding apparatus for a stone-based composite material according to claim 12, wherein the current collecting block (901) is fixed by a collecting block support frame (1601). An injection molding apparatus for a stone-based composite material according to claim 13 is characterized in that the injection device (5) comprises an injection barrel (1101), an injection seat (1104), and an injection. a rod (1111) and an injection drive device; The injection rod (1111) is placed in the injection barrel (1101) and driven by the injection driving device; the injection barrel (1101) is mounted in the second passage (915) of the collecting block (901), The injection barrel (1101) and the injection driving device are mounted on the injection seat (1104), and a front barrel (1112) and a small nozzle (1115) are mounted on the other side of the current collecting block (901). The small nozzle (1115) is in contact with the mold gate. An injection molding apparatus for a stone-based composite material according to claim 14 is characterized in that: the current collecting block (901) and the pre-plasticizing barrel (711), the current collecting block (901) ) an active connection with the injection barrel (1101). An injection molding apparatus for a stone-based composite material according to claim 2, characterized in that the injection mechanism further comprises a relocation device (6); the reshaping device (6) comprises a guide rod assembly on the frame; the guide rod assembly includes a guide rod support (1503) and a shot guide rod (1504); the guide rod support (1503) is fixed on the frame; A rod (1504) is secured to the rod support (1503). The injection molding apparatus for stone-based composite material according to claim 16 is characterized in that the sizing device (6) further comprises a template (1506) and a fixed connection with the template (1506). a shifting drive component; the shifting drive assembly includes a full shift cylinder (1501), a full shift joint (1502), and a full displacement piston rod (1505); the full shift cylinder (1501) is fixed to an injection seat ( 1104) The screed piston rod (1505) is secured to the template (1506) by the splicing joint (1502). An injection molding apparatus for stone-based composite material, comprising: a pre-plasticizing device (3), a material feeding device (4) and an injection device (5); the pre-plasticizing device (3) comprises a a front table (1301), a rear plate (1312), a screw rotating mechanism and a screw moving mechanism; the screw rotating mechanism is fixed on the rear plate (1312) of the shooting table, and the injection device (5) Connecting, the screw moving mechanism is disposed on the front plate (1301) of the shooting table; the sealing device (4) comprises a thrust ring (1307) and a check ring (1308), and the check ring (1308) is disposed At the outlet end of the injection device (5), the thrust ring (1307) is in contact with the check ring (1308), and the thrust ring (1307) cooperates with the check ring (1308) to function as a sealing material. The injection device (5) comprises a barrel (1302), a transition nozzle (1304), a small nozzle (1305), a screw (1306) and a screw head (1309), the barrel (1302) is mounted on The screw front plate (1301) is internally provided with the screw (1306), and a screw head (1309) is disposed at a top end of the screw (1306), and the transition nozzle (1304) is disposed at an end of the barrel (1302). ), in the transition spray (1304) provided with the small end of the nozzle (1305).