A compression molding machine for manufacturing plastic products

Abstract

The utility model relates to the technical field of plastic product manufacturing technique discloses a plastic product manufacturing is with pressure plastic machine, including a plurality of support column, the bottom fixed connection of support column is in the top of protection shell, the top fixed connection of support column has drive assembly, the outside rotation of drive assembly is connected with two connecting rods, the inside adjacent side rotation of two connecting rods is connected with the rotating rod, the outside rotation of rotating rod is connected with the screen plate. In the utility model, in the utility model, the connecting rod and rotating shaft connecting point offset drive assembly's centre axle, drive assembly operation to make the screen plate vibrate to the screening of plastic particles to make the more uniform melting of plastic solution, through the drive end drive of motor no.

Description

Technical Field

[0001] This utility model relates to the field of plastic product manufacturing technology, and in particular to a compression molding machine for manufacturing plastic products. Background Technology

[0002] Plastic product manufacturing involves heating granules to melt them into a solution, and then using equipment such as a compression molding machine, a motor-driven component extrudes and pushes the solution into a mold to complete the die casting process. The die casting machine is the core equipment in product manufacturing, which can process molten plastic solution into a fixed shape. It first receives the heated and molten solution, and then the motor-driven push rod extrudes and pushes the solution into the matching mold cavity. After the solution cools and solidifies, the mold is separated and the product is removed.

[0003] In the existing technology, some plastic product compression molding machines mainly consist of three parts: raw material processing, compression molding, and environmental filtration. Raw material processing includes heaters, and compression molding includes motors, push rods, and molds. During operation, plastic granules are first melted into a solution by the heater. The motor drives the push rod to squeeze and push the solution into the mold cavity. The mold closes and applies pressure to form the solution. After cooling, the product is removed.

[0004] In the existing technology, it is difficult to screen plastic particles before heating some plastic product compression molding machines. During the heating process, uneven heating is easy to occur, which reduces the quality of the product. The extrusion strength of the push rod on the plastic solution is small. Harmful gases are easily generated after die casting, which can easily pollute the air and cause harm to the operator's health. Therefore, a compression molding machine for manufacturing plastic products is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a compression molding machine for manufacturing plastic products, aiming to improve the problems in the prior art where it is difficult to screen plastic particles before heating, uneven heating is easy during the heating process, and the extrusion strength of the push rod on the plastic solution is small.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A compression molding machine for manufacturing plastic products includes a protective shell, a feeding mechanism fixedly connected to the top of the protective shell, and a processing mechanism fixedly connected to the inside of the protective shell. The feeding mechanism includes multiple support columns. The bottom of each support column is fixedly connected to the top of the protective shell. A drive assembly is fixedly connected to the top of each support column. Two connecting rods are rotatably connected to the outside of the drive assembly. A rotating rod is rotatably connected to the inner adjacent side of the two connecting rods. A sieve plate is rotatably connected to the outside of the rotating rod. Two connecting rods are rotatably connected to the front and rear sides of the sieve plate. Two connecting rods are rotatably connected to the outer sides of the sieve plate. A connector is fixedly connected to the bottom of the drive assembly. A compression assembly is fixedly connected to the bottom of the connector. As a further description of the above technical solution: The processing mechanism includes two fixed shells. The top of the fixed shell is fixedly connected to the inside of the protective shell. A second motor is fixedly connected inside the fixed shell. A negative pressure fan is fixedly connected to the drive end of the second motor. An air outlet pipe is fixedly connected inside the protective shell. A filter cover is fixedly connected to the left side of the air outlet pipe. Multiple paint mist filter cottons are fixedly connected inside the filter cover. A fixed plate is fixedly connected inside the filter cover. Multiple bag filter cottons are fixedly connected to the outside of the fixed plate. An exhaust pipe is fixedly connected to the outside of the filter cover. As a further description of the above technical solution: Both of the first links are rotatably connected to the outside of the drive assembly, and both of the second links are rotatably connected to the outside of the drive assembly. As a further description of the above technical solution: The drive assembly includes a sieve frame, the bottom of which is fixedly connected to the top of the support column. A baffle is slidably connected inside the sieve frame, and a drive motor is fixedly connected inside the sieve frame. Rotating shafts are fixedly connected to both drive ends of the drive motor. As a further description of the above technical solution: The compression assembly includes a heater, the top of which is fixedly connected to the bottom of the connector, the output end of which is fixedly connected to a transport pipe, the right side of which is fixedly connected to a transport bucket, the top of which is fixedly connected to a motor, the drive end of which is fixedly connected to a rotating rod, and the outside of which is fixedly connected to a spiral blade. As a further description of the above technical solution: The protective shell has multiple screws connected internally by threads, and multiple screws have external threads connected to a recessed template. As a further description of the above technical solution: A controller is fixedly connected inside the protective shell. Two pipelines are fixedly connected to the outside of the controller. Multiple cylinders are fixedly connected to the opposite side of the two pipelines. A telescopic rod is fixedly connected to the drive end of each of the multiple cylinders. A support plate is fixedly connected to the top of the telescopic rod. As a further description of the above technical solution: The support plate has multiple screws connected internally by threads, and the screws are connected externally by threads to a convex template.

[0007] This utility model has the following beneficial effects: 1. In this utility model, a connecting rod is rotatably connected to the outside of the drive assembly, offset from the center point of the drive assembly. When the drive assembly is running, the connecting rod vibrates, which in turn vibrates the sieve plate, thereby sieving the plastic particles and making the plastic solution melt more evenly. The drive end of the motor drives the rotating rod and the spiral blade to rotate, thereby squeezing and pushing the plastic solution, thus injecting the plastic solution evenly into the mold, resulting in a better quality die-cast mold. 2. In this utility model, under the action of the negative pressure fan driven by the second drive end of the motor, the harmful gas generated by die casting is sent to the inside of the filter cover through the exhaust pipe. The harmful gas is filtered multiple times by paint mist filter cotton and bag filter cotton to solve the problem of harmful gas emission and environmental pollution. Attached Figure Description

[0008] Figure 1 This is a three-dimensional schematic diagram of a compression molding machine for manufacturing plastic products according to the present invention; Figure 2 This is a schematic diagram of the structure of a sieve plate for a compression molding machine used in the manufacture of plastic products, as proposed in this utility model. Figure 3 This is a schematic diagram of the support plate of a compression molding machine for manufacturing plastic products according to the present invention; Figure 4 This is a schematic diagram of the structure of a paint mist filter cotton for a compression molding machine used in the manufacture of plastic products, as proposed in this utility model.

[0009] Legend: 1. Protective shell; 2. Feeding mechanism; 21. Support column; 22. Drive assembly; 221. Screen frame; 222. Baffle; 223. Drive motor; 224. Rotating shaft; 23. Connecting rod; 24. Rotating rod; 25. Screen plate; 26. Connecting rod one; 27. Connecting rod two; 28. Connector; 29. ​​Compression assembly; 291. Heater; 292. Conveying pipe; 293. Conveying barrel; 294. Motor one; 295. Rotating rod; 29 6. Spiral blade; 3. Processing mechanism; 31. Fixed shell; 32. Motor II; 33. Negative pressure fan; 34. Exhaust pipe; 35. Filter cover; 36. Paint mist filter cotton; 37. Fixed plate; 38. Bag filter cotton; 39. Exhaust pipe; 310. Screw I; 311. Concave template; 312. Controller; 313. Pipeline; 314. Cylinder; 315. Telescopic rod; 316. Support plate; 317. Screw II; 318. Convex template. Detailed Implementation

[0010] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0011] Reference Figures 1 to 3 An embodiment of this utility model is provided: a compression molding machine for manufacturing plastic products, including a protective shell 1, a feeding mechanism 2 fixedly connected to the top of the protective shell 1, and a processing mechanism 3 fixedly connected to the inside of the protective shell 1; After the equipment is started, the plastic granules are first screened to remove impurities. The workers pour the plastic granules into the drive assembly 22 of the feeding mechanism 2. The sieve frame 221 of the drive assembly 22 provides temporary storage space for the granules. Its bottom is fixed to the top of the protective shell 1 by support columns 21, which ensure the stability of the sieve frame 221 during subsequent operation. The drive motor 223 fixed inside the sieve frame 221 starts, and its two drive ends drive the rotating shaft 224 to rotate synchronously. Two connecting rods 23 externally connected to the drive assembly 22 have one end connected to the rotating shaft 224, with the connection point offset from the center of the rotating shaft 224. The rotation of the rotating shaft 224 is converted into reciprocating vibration of the connecting rods 23, which in turn drives the rotating rod 24 internally connected to the adjacent side to vibrate. The sieve plate 25 externally connected to the rotating rod 24 vibrates synchronously. At this time, the sieve plate 25 externally connected to the front and rear sides... The connecting rod 26 and the connecting rod 27 are both rotatably connected to the outside of the sieve frame 221 at their other ends. This limits the vibration range of the sieve plate 25 and prevents the particles from spilling due to excessive vibration. Under the vibration of the sieve plate 25, small plastic particles fall through the sieve holes into the connector 28 at the bottom of the sieve frame 221, while large particles remain on the sieve plate 25. After screening, the baffle 222 that is slidably connected inside the sieve frame 221 can be pulled out to clean out large particle impurities from one side of the sieve frame 221, ensuring the purity of the subsequent raw materials. Small plastic particles falling into connector 28 are conveyed through connector 28 to compression assembly 29 fixedly connected at the bottom. The heater 291 of compression assembly 29 is activated to heat and melt the incoming plastic particles, turning them into a flowing plastic solution. The transport pipe 292 fixedly connected to the output end of heater 291 conveys the molten plastic solution to transport tank 293 fixedly connected on the right. Subsequently, motor 294 fixed at the top of transport tank 293 is activated, and its drive end drives rotating rod 295 to rotate. The spiral blade 296 fixed outside rotating rod 295 rotates synchronously. During the rotation, the spiral blade 296 generates a squeezing force on the plastic solution in transport tank 293, continuously and evenly pushing the plastic solution into the internal die-casting area of ​​protective shell 1, preparing for subsequent molding.

[0012] Reference Figure 1 , Figure 2 and Figure 3After the plastic solution enters the protective shell 1, the processing mechanism 3 begins the die-casting operation. Inside the protective shell 1, a concave template 311, connected by multiple screws 310, is positioned opposite a convex template 318 on the support plate 316, connected by multiple screws 317. The detachable design of screws 310 and 317 allows for easy replacement of different specifications of the concave template 311 and convex template 318 according to production needs. At this time, a controller 312 fixed inside the protective shell 1 sends commands to multiple cylinders 314 fixedly connected to the opposite side of two externally fixed pipelines 313. After the cylinders 314 are activated, their drive ends drive the extension... The telescopic rod 315 extends upward, and the support plate 316 fixedly connected to the top of the telescopic rod 315 moves upward accordingly, thereby driving the convex template 318 to move upward synchronously until the convex template 318 and the concave template 311 are tightly fitted together. After fitting together, the plastic solution pushed from the transport tank 293 will enter the cavity of the concave template 311, filling the gap between the concave template 311 and the convex template 318. After the plastic solution cools and solidifies in the cavity, the controller 312 controls the cylinder 314 to drive the telescopic rod 315 to retract, driving the support plate 316 and the convex template 318 to return downward and separate from the concave template 311. Finally, the molded plastic product is taken out, completing one die-casting process. During the plastic die-casting process, the high-temperature molten plastic generates harmful gases. The exhaust gas purification components of the treatment unit 3 are activated simultaneously. Two fixed shells 31 are fixed inside the protective shell 1, with the top of the fixed shell 31 fixed inside the protective shell 1. The motor 32 fixed inside the fixed shell 31 is activated, and the drive end drives the negative pressure fan 33 to rotate at high speed, generating negative pressure suction. The harmful gases inside the protective shell 1 are drawn into the filter cover 35 through the internally fixed exhaust pipe 34. After entering the filter cover 35, the harmful gases first pass through multiple paint mist filter cottons 36 fixed inside the filter cover 35. The paint mist filter cottons 36 will perform preliminary filtration of large particulate impurities in the harmful gases. Subsequently, the gas continues to flow through multiple bag filter cottons 38 fixed outside the fixed plate 37 inside the filter cover 35. The bag filter cottons 38, through their porous structure, perform secondary filtration and purification of fine harmful particles and some harmful components in the gas. Finally, the purified harmless gas is discharged from the equipment through the exhaust pipe 39 fixed outside the filter cover 35, avoiding environmental pollution by harmful gases.

[0013] Working principle: First, plastic granules are placed into the drive assembly 22. The support column 21 supports the drive assembly 22. The drive motor 223 included in the drive assembly 22 starts to operate. The drive end of the drive motor 223 drives the rotating shaft 224 to rotate. The connecting rod 23 is rotatably connected to the outside of the rotating shaft 224. The connection point is off-center from the central axis of the rotating shaft 224, thereby causing the connecting rod 23 to vibrate, which in turn causes the rotating rod 24 to vibrate, which in turn causes the sieve plate 25 to vibrate. Connecting rod 1 26 and connecting rod 27 provide certain support for the sieve plate 25, enabling the sieve plate 25 to vibrate within a certain range. 5. The granular plastic raw material is sieved by vibration. The sieve plate 25 has a certain inclination, which can sieve the large granular raw material to the left side of the sieve frame 221. After sieving, the baffle 222 can be removed to clean the large granular raw material. The small granular raw material falls into the connector 28. The heater 291 included in the compression assembly 29 heats the raw material and transports it to the transport tank 293 through the transport pipe 292. At this time, the motor 294 starts to run and drives the rotating rod 295 to start rotating, thereby driving the spiral blade 296 to start rotating, thereby pushing the plastic solution into the interior of the protective shell 1 and pressurizing the plastic solution. The processing mechanism 3 includes a concave template 311 threadedly connected to the inside of the protective shell 1 by a screw 310, and a convex template 318 threadedly connected to the inside of the support plate 316 by a screw 317, so that the concave template 311 and the convex template 318 can be disassembled and replaced. The controller 312 triggers the cylinder 314 to operate through the pipeline 313, so that the drive end of the cylinder 314 drives the telescopic rod 315 to extend and retract, thereby pushing the convex template 318 and the support plate 316 to move upward, so that the concave template 311 and the convex template 318 are in close contact. At this time, the plastic solution enters the connection hole of the concave template 311 through the inside of the protective shell 1, thereby filling the gap between the concave template 311 and the convex template 318, thereby performing die casting on the plastic solution. After die casting, a large amount of toxic gas is generated. At this time, the motor 32 fixed inside the fixed shell 31 starts to run. The drive end of the motor 32 drives the negative pressure fan 33 to rotate, thereby introducing the harmful gas into the filter cover 35 through the exhaust pipe 34. The gas is initially filtered by multiple paint mist filter cottons 36 inside the filter cover 35, and then filtered again by bag filter cotton 38, thereby completing the purification of the harmful gas. Finally, the gas is discharged through the exhaust pipe 39. Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A compression molding machine for manufacturing plastic products, comprising a protective shell (1), characterized in that: The top of the protective shell (1) is fixedly connected to a feeding mechanism (2), and the inside of the protective shell (1) is fixedly connected to a processing mechanism (3). The feeding mechanism (2) includes multiple support columns (21). The bottom of the support column (21) is fixedly connected to the top of the protective shell (1). The top of the support column (21) is fixedly connected to a drive assembly (22). The drive assembly (22) is rotatably connected to two connecting rods (23). The two connecting rods (23) are rotatably connected to adjacent sides inside. The rotating rods (24) are rotatably connected to a screen plate (25). The screen plate (25) is rotatably connected to two connecting rods (26) on both sides outside. The screen plate (25) is rotatably connected to two connecting rods (27) on the front and rear sides outside. The bottom of the drive assembly (22) is fixedly connected to a connector (28). The bottom of the connector (28) is fixedly connected to a compression assembly (29).

2. The compression molding machine for manufacturing plastic products according to claim 1, characterized in that: The processing mechanism (3) includes two fixed shells (31). The top of the fixed shell (31) is fixedly connected to the inside of the protective shell (1). A second motor (32) is fixedly connected inside the fixed shell (31). A negative pressure fan (33) is fixedly connected to the drive end of the second motor (32). An air outlet pipe (34) is fixedly connected inside the protective shell (1). A filter cover (35) is fixedly connected to the left side of the outside of the air outlet pipe (34). Multiple paint mist filter cottons (36) are fixedly connected inside the filter cover (35). A fixed plate (37) is fixedly connected inside the filter cover (35). Multiple bag filter cottons (38) are fixedly connected to the outside of the fixed plate (37). An exhaust pipe (39) is fixedly connected to the outside of the filter cover (35).

3. A compression molding machine for manufacturing plastic products according to claim 1, characterized in that: Both of the first two links (26) are rotatably connected to the outside of the drive assembly (22), and both of the second two links (27) are rotatably connected to the outside of the drive assembly (22).

4. A compression molding machine for manufacturing plastic products according to claim 1, characterized in that: The drive assembly (22) includes a sieve frame (221), the bottom of which is fixedly connected to the top of the support column (21). A baffle (222) is slidably connected inside the sieve frame (221), and a drive motor (223) is fixedly connected inside the sieve frame (221). A rotating shaft (224) is fixedly connected to both drive ends of the drive motor (223).

5. A compression molding machine for manufacturing plastic products according to claim 1, characterized in that: The compression assembly (29) includes a heater (291), the top of which is fixedly connected to the bottom of the connector (28). The output end of the heater (291) is fixedly connected to a transport pipe (292). The right side of the transport pipe (292) is fixedly connected to a transport bucket (293). The top of the transport bucket (293) is fixedly connected to a motor (294). The drive end of the motor (294) is fixedly connected to a rotating rod (295). The outside of the rotating rod (295) is fixedly connected to a spiral blade (296).

6. A compression molding machine for manufacturing plastic products according to claim 2, characterized in that: The protective shell (1) has multiple screws (310) internally threadedly connected to it, and multiple screws (310) have external threads connected to a recessed template (311).

7. A compression molding machine for manufacturing plastic products according to claim 2, characterized in that: The protective shell (1) is fixedly connected to a controller (312), and the controller (312) is fixedly connected to two pipelines (313). Multiple cylinders (314) are fixedly connected to the opposite side of the two pipelines (313). The drive end of each of the multiple cylinders (314) is fixedly connected to a telescopic rod (315), and a support plate (316) is fixedly connected to the top of the telescopic rod (315).

8. A compression molding machine for manufacturing plastic products according to claim 7, characterized in that: The support plate (316) has multiple screws (317) internally threadedly connected, and the multiple screws (317) have a protruding template (318) externally threadedly connected.

Images