Injection molding machine with quick feeding structure

Abstract

The utility model relates to an injection molding machine with a rapid feeding structure, and relates to the field of injection molding machines. The injection molding machine comprises an injection molding machine body and a feeding device installed on the upper side of the injection molding machine body, the feeding device comprises a charging barrel, a barrel cover is installed at an upper end opening of the charging barrel, a material stirring mechanism is arranged on the inner side of the charging barrel, and a discharging pipe is fixed to the lower end of the charging barrel. When the charging barrel supplies materials to the injection molding machine body, the driving motor drives the transmission rod to drive the crushing core to continuously rotate, and first crushing teeth on the outer side of the rotating crushing core and second crushing teeth in the discharging pipe are mutually staggered and meshed, so that large plastic particles are crushed, and meanwhile, downward flowing of the plastic particles is not influenced; and the crushed plastic particles are quickly discharged downwards under the driving of the spiral blade rod, so that the speed of the plastic particles entering the injection molding machine body is greatly increased while the situation that large particles of the plastic particles fall off is avoided, and the plastic particle discharging efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of injection molding machines, and in particular to an injection molding machine with a fast feeding structure. Background Art

[0002] Injection molding machine, also known as injection molding machine or injection machine, is the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastics or thermosetting plastics. When performing injection molding, the injection molding machine requires a feeding device to feed plastic particles into the injection molding machine. The plastic particles in the feeding device are easily affected by poor feeding, which reduces the conveying efficiency of the molten material and thus reduces the injection efficiency.

[0003] The Chinese patent with announcement number CN221775100U discloses a high-efficiency and energy-saving injection molding machine, including a heat flow tube; a screw is provided inside the heat flow tube, a feed tube is fixedly installed on the top of the heat flow tube, a cutting assembly is provided inside the feed tube, and a blanking assembly is provided inside the feed tube; the utility model cuts the plastic particles entering the feed tube by a blade, so that the plastic particles enter the heat flow tube in a small volume and are heated, avoiding the blockage of large-volume plastic particles in the heat flow tube, resulting in a decrease in the efficiency of conveying plastic particles, thereby increasing the injection molding efficiency and achieving the effect of reducing energy consumption; the driving rod is supported by the connecting rod and the connecting ring, so that the driving rod can rotate stably, and at the same time, the connecting rod drives the rotating rod to rotate inside the feed tube, thereby pushing the plastic particles inside the feed tube to move, avoiding the blockage of plastic particles inside the feed tube and resulting in a decrease in the blanking speed.

[0004] The above-mentioned high-efficiency and energy-saving injection molding machine uses a blade to cut the plastic particles entering the feed pipe, so that the plastic particles enter the interior of the heat flow tube in a small volume and are heated, thereby ensuring smooth discharge. Although the discharge tray set in the feed pipe can block larger plastic particles, it also slows down the efficiency of plastic particle discharge to a certain extent. Utility Model Content

[0005] In order to solve the problem that the feeding efficiency of the feeding device of the high-efficiency and energy-saving injection molding machine is low, the present application provides an injection molding machine with a fast feeding structure.

[0006] The present application provides an injection molding machine with a fast feeding structure adopting the following technical solutions:

[0007] An injection molding machine with a fast feeding structure includes an injection molding machine body and a feeding device installed on the upper side of the injection molding machine body. The feeding device includes a barrel, a barrel cover is installed at the upper end of the barrel, a material diverting mechanism is provided on the inner side of the barrel, and a discharge pipe is fixed at the lower end of the barrel.

[0008] The material-dispensing mechanism includes a vertically arranged transmission rod, a support frame for rotating the transmission rod is installed on the inner side of the barrel, the upper end of the transmission rod passes through the barrel cover and is fixed with a drive motor, the lower end of the transmission rod is fixedly connected to the crushing core, and the lower end of the crushing core is fixed with a spiral blade rod;

[0009] The crushing core and the spiral blade rod are both arranged in the discharge pipe. The outer side surface of the crushing core is provided with a conical surface at the upper end, and the outer surface of the crushing core is fixed with evenly distributed first crushing teeth, and the inner side wall of the discharge pipe is fixed with evenly arranged second crushing teeth.

[0010] By adopting the above technical solution, when the barrel feeds the injection molding machine body, the driving motor drives the transmission rod to drive the crushing core to rotate continuously, and the first crushing teeth on the outer side of the rotating crushing core and the second crushing teeth in the discharge pipe interlock and bite with each other to crush larger plastic particles. The crushed plastic particles are quickly discharged downward under the drive of the spiral blade rod, thereby ensuring that large plastic particles do not fall while greatly accelerating the speed at which the plastic particles enter the injection molding machine body, thereby improving the efficiency of plastic particle discharge.

[0011] Optionally, a plurality of stirring rods are fixed to the outer side of the transmission rod, and a threaded head is fixed to the lower end of the transmission rod.

[0012] By adopting the above technical solution, the transmission rod utilizes the stirring rod to stir the plastic particles in the barrel to put them in a loose state, thereby facilitating the downward flow of the plastic particles.

[0013] Optionally, a threaded hole is provided at the center of the upper end surface of the crushing core, and a positioning socket is provided at the lower end surface of the crushing core.

[0014] By adopting the above technical solution, the crushing core is threadedly connected to the transmission rod through the threaded hole at the upper end, and the crushing core is positioned and plugged into the spiral blade rod using the positioning socket at the lower end.

[0015] Optionally, a fixing plate is fixed to the upper end of the spiral blade rod, and the fixing plate is fixed to the lower end of the crushing core by screws, and a plug post is fixed to the center of the upper surface of the fixing plate.

[0016] By adopting the above technical solution, the spiral blade rod is inserted into the crushing core by using the plug column for positioning connection, and is fixedly installed on the crushing core by using the fixing plate.

[0017] Optionally, a clamping ring is fixed to the upper end of the discharge tube, and a mounting edge is fixed to the lower end of the discharge tube.

[0018] By adopting the above technical solution, the discharge pipe is sleeved and matched with the lower end of the barrel by using a clamping ring, and is fixed to the injection molding machine body by inserting screws on the installation edge.

[0019] Optionally, a mounting sleeve is fixed to the lower end of the barrel, and a plurality of locking screws are installed on the outer thread of the mounting sleeve, and a plurality of vertical slots are opened on the inner wall of the barrel.

[0020] By adopting the above technical solution, the barrel is connected to the discharge pipe through the installation sleeve and is locked and fixed by the locking screw on the outside of the installation sleeve.

[0021] Optionally, the support frame includes a support sleeve, a plurality of support rods are fixed to the outside of the support sleeve, and one end of the support rod away from the support sleeve is clamped in the clamping groove, and a bearing is clamped in the center of the support sleeve.

[0022] By adopting the above technical solution, the support frame uses the support sleeve and the bearing to rotatably install the transmission rod, and uses the support rod to suspend the support sleeve.

[0023] Optionally, a feed pipe is fixed to the upper surface of the cylinder cover, and a clamping table is fixed to the lower side of the cylinder cover, multiple limit blocks are fixed around the outer side of the clamping table, and vertical downward locking plates are fixed on the left and right sides of the cylinder cover, and tightening screws are threaded on the locking plates.

[0024] By adopting the above technical solution, the barrel cover is mounted on the inner side of the upper port of the barrel by using a clamping table, and the clamping table is limited by the limiting blocks around the outer side of the clamping table to achieve the positioning installation of the barrel cover.

[0025] In summary, this application has the following beneficial technical effects:

[0026] When the barrel feeds the injection molding machine body, the driving motor drives the transmission rod to drive the crushing core to rotate continuously. The first crushing teeth on the outer side of the rotating crushing core and the second crushing teeth in the discharge tube interlock and bite with each other to crush larger plastic particles without affecting the downward flow of the plastic particles. The crushed plastic particles are quickly discharged downward under the drive of the spiral blade rod, thereby ensuring that large plastic particles do not fall and greatly accelerating the speed at which the plastic particles enter the injection molding machine body, thereby improving the efficiency of plastic particle discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is an overall schematic diagram of the embodiment of the present application;

[0028] Figure 2 Schematic diagram of the feeding device in the embodiment of the present application;

[0029] Figure 3 Schematic diagram of the material diverting mechanism in the embodiment of the present application;

[0030] Figure 4 Schematic diagram of a crushed core in an embodiment of the present application;

[0031] Figure 5 is a schematic diagram of a spiral blade rod in an embodiment of the present application;

[0032] Figure 6 Schematic diagram of the feed pipe in the embodiment of the present application;

[0033] Figure 7 Schematic diagram of the barrel in the embodiment of the present application;

[0034] Figure 8 is a schematic diagram of a support frame in an embodiment of the present application;

[0035] Figure 9 Schematic diagram of the cylinder cover in the embodiment of the present application.

[0036] Explanation of the accompanying reference numerals: 1. Injection molding machine body; 2. Feeding device; 21. Material dispensing mechanism; 211. Driving motor; 212. Transmission rod; 213. Agitating rod; 214. Crushing core; 2141. Conical surface; 2142. First crushing tooth; 215. Spiral blade rod; 2151. Fixing plate; 2152. Insert column; 22. Cylinder cover; 221. Feeding pipe; 222. Locking plate; 223. Tightening screw; 224. Card table; 225. Limit block; 23. Cylinder; 231. Mounting sleeve; 232. Locking screw; 233. Card slot; 24. Feeding pipe; 241. Second crushing tooth; 242. Clamping ring; 243. Mounting edge; 25. Support frame; 251. Support sleeve; 252. Bearing; 253. Support rod. DETAILED DESCRIPTION

[0037] The present application is further described in detail below with reference to the accompanying drawings.

[0038] The embodiment of the present application discloses an injection molding machine with a fast feeding structure. Figure 1 and Figure 2 , including an injection molding machine body 1 and a feeding device 2 installed on the upper side of the injection molding machine body 1, the feeding device 2 includes a barrel 23, a barrel cover 22 is installed at the upper end of the barrel 23, and a material-dispensing mechanism 21 is provided on the inner side of the barrel 23, and a discharge pipe 24 is fixed at the lower end of the barrel 23. The barrel 23 is used to add plastic particles, and is continuously fed into the injection molding machine body 1 through the discharge pipe 24 under the continuous displacement of the material-dispensing mechanism 21, thereby completing the injection molding feeding;

[0039] Reference Figure 3The material-feeding mechanism 21 includes a vertically arranged transmission rod 212, and a support frame 25 for rotatably supporting the transmission rod 212 is installed on the inner side of the barrel 23. The upper end of the transmission rod 212 passes through the barrel cover 22 and is fixed with a driving motor 211. The lower end of the transmission rod 212 is fixedly connected to a crushing core 214, and the lower end of the crushing core 214 is fixed with a spiral blade rod 215. The plastic particles crushed by the crushing core 214 are quickly discharged downward under the drive of the spiral blade rod 215, thereby ensuring that large plastic particles do not fall and greatly accelerating the speed at which the plastic particles enter the injection molding machine body 1, thereby improving the efficiency of plastic particle discharge;

[0040] Reference Figure 4 and Figure 6 The outer side surface of the crushing core 214 is provided with a conical surface 2141 at the upper end. The conical surface 2141 provided on the outer side of the crushing core 214 makes the distance between the crushing core 214 and the inner wall of the discharge pipe 24 decrease from large to small from top to bottom, thereby ensuring that the plastic particles flow downward and are crushed. At the same time, the small gap between the crushing core 214 and the inner wall of the discharge pipe 24 is used to control the size of the plastic particles. Larger plastic particles cannot pass through the small gap and will continue to be crushed, thereby ensuring that the plastic particles are discharged in small sizes.

[0041] The crushing core 214 and the spiral blade rod 215 are both arranged in the discharge tube 24, and the outer surface of the crushing core 214 is fixed with evenly distributed first crushing teeth 2142, and the inner wall of the discharge tube 24 is fixed with evenly arranged second crushing teeth 241. When the barrel 23 feeds the injection molding machine body 1, the drive motor 211 drives the transmission rod 212 to drive the crushing core 214 to rotate continuously. The first crushing teeth 2142 on the outer side of the rotating crushing core 214 and the second crushing teeth 241 in the discharge tube 24 interlock and bite with each other, thereby crushing larger plastic particles without affecting the downward flow of the plastic particles.

[0042] The outer diameter of the spiral blade rod 215 is the same as the inner diameter of the discharge tube 24, so that the original material can be better pushed downward. At the same time, the blades on the spiral blade rod 215 can scrape the inner surface of the discharge tube 24, thereby preventing the plastic particles from melting and sticking to the inner wall of the discharge tube 24 due to high temperature.

[0043] Reference Figure 3 A plurality of stirring rods 213 are fixed to the outside of the transmission rod 212. The transmission rod 212 uses the stirring rods 213 to stir the plastic particles in the barrel 23 to make them in a loose state, which is conducive to the downward flow of the plastic particles. The plastic particles in a loose state avoid agglomeration and congestion due to mutual squeezing, thereby ensuring better material discharge. A threaded head is fixed to the lower end of the transmission rod 212, and the transmission rod 212 is threadedly connected to the crushing core 214 using the threaded head.

[0044] Reference Figure 4 A threaded hole is provided at the center of the upper end surface of the crushing core 214, and the crushing core 214 is threadedly connected to the transmission rod 212 through the threaded hole at the upper end, and a positioning socket is provided at the lower end surface of the crushing core 214, and the crushing core 214 is positioned and plugged into the spiral blade rod 215 using the positioning socket at the lower end.

[0045] Reference Figure 5 A fixing plate 2151 is fixed to the upper end of the spiral blade rod 215, and the spiral blade rod 215 is fixedly installed on the crushing core 214 using the fixing plate 2151. The fixing plate 2151 is fixed to the lower end of the crushing core 214 by screws. A plug post 2152 is fixed to the center of the upper surface of the fixing plate 2151, and the spiral blade rod 215 is inserted into the crushing core 214 using the plug post 2152 for positioning and connection.

[0046] Reference Figure 6 The upper end of the discharge tube 24 is fixed with a clamping ring 242, and the discharge tube 24 uses the clamping ring 242 to accurately fit with the lower end of the barrel 23, thereby achieving a more stable connection. The lower end of the discharge tube 24 is fixed with a mounting edge 243, and the discharge tube 24 uses the clamping ring 242 to fit with the lower end of the barrel 23, and is fixed to the injection molding machine body 1 by inserting screws on the mounting edge 243.

[0047] Reference Figure 7 The lower end of the barrel 23 is fixed with a mounting sleeve 231. The inner diameter of the mounting sleeve 231 is the same as the outer diameter of the clamping ring 242 for tight fitting, and the outer thread of the mounting sleeve 231 is installed with multiple locking screws 232. The barrel 23 is connected to the discharge pipe 24 through the mounting sleeve 231 and is locked and fixed by the locking screws 232 on the outside of the mounting sleeve 231. A plurality of vertical card grooves 233 are provided on the inner wall of the barrel 23. The vertical card grooves 233 facilitate the installation of the support frame 25 from the upper port of the barrel 23 to the inside.

[0048] Reference Figure 8 The support frame 25 includes a support sleeve 251, and multiple support rods 253 are fixed to the outside of the support sleeve 251, and the end of the support rod 253 away from the support sleeve 251 is clamped in the clamping groove 233, and the end of the support rod 253 away from the support sleeve 251 is clamped in the clamping groove 233 for installation, thereby realizing a suspended installation in the barrel 23. A bearing 252 is clamped in the center of the support sleeve 251. The support frame 25 uses the support sleeve 251 and the bearing 252 to rotatably install the transmission rod 212, and uses the support rod 253 to suspend and support the support sleeve 251.

[0049] Reference Figure 9A feed pipe 221 is fixed to the upper surface of the cylinder cover 22, and a clamping platform 224 is fixed to the lower side of the cylinder cover 22. A plurality of limit blocks 225 are fixed around the outer side of the clamping platform 224. The cylinder cover 22 is clamped on the inner side of the upper port of the barrel 23 by the clamping platform 224, and the limit blocks 225 around the outer side of the clamping platform 224 are used to limit the position of the clamping platform 224 after clamping, thereby realizing the positioning and installation of the cylinder cover 22;

[0050] The left and right sides of the barrel cover 22 are fixed with vertical downward locking plates 222, and the locking plates 222 are threaded with tightening screws 223. The barrel cover 22 is tightened on the barrel 23 by the tightening screws 223 on the locking plates 222, thereby achieving locking and fixing of the barrel cover 22 after installation.

[0051] The implementation principle of an injection molding machine with a fast feeding structure in the embodiment of the present application is as follows: plastic particles are fed into the barrel 23 through the feed pipe 221, and at this time the driving motor 211 drives the transmission rod 212 to rotate, and the rotating transmission rod 212 drives the crushing core 214 to rotate, and at the same time the stirring rod 213 on the transmission rod 212 stirs the plastic particles in the barrel 23 so that the plastic particles are always in a loose state, and the plastic particles downwardly enter the gap between the crushing core 214 and the inner side wall of the discharge pipe 24 and flow downwardly. The plastic particles flowing downwardly are broken into larger particles by the interaction of the first crushing teeth 2142 on the crushing core 214 and the second crushing teeth 241 in the discharge pipe 24, and the qualified plastic particles flow downwardly and flow downwardly rapidly under the stirring of the spiral blade rod 215 until they are fed into the injection molding machine body 1, thereby completing the feeding of the injection molding machine body 1.

[0052] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An injection molding machine with a fast feeding structure, comprising an injection molding machine body (1) and a feeding device (2) installed on the upper side of the injection molding machine body (1), characterized in that: The feeding device (2) comprises a barrel (23), a barrel cover (22) is installed at the upper end of the barrel (23), a material-dispensing mechanism (21) is provided on the inner side of the barrel (23), and a discharge pipe (24) is fixed at the lower end of the barrel (23); The material-dispensing mechanism (21) comprises a vertically arranged transmission rod (212); a support frame (25) for rotatably supporting the transmission rod (212) is installed on the inner side of the barrel (23); the upper end of the transmission rod (212) passes through the barrel cover (22) and is fixed with a drive motor (211); the lower end of the transmission rod (212) is fixedly connected to a crushing core (214); and the lower end of the crushing core (214) is fixed with a spiral blade rod (215); The crushing core (214) and the spiral blade rod (215) are both arranged in a discharge tube (24); a conical surface (2141) is provided on the outer side surface of the crushing core (214) at the upper end thereof; and uniformly distributed first crushing teeth (2142) are fixed to the outer surface of the crushing core (214); and uniformly arranged second crushing teeth (241) are fixed to the inner side wall of the discharge tube (24).

2. The injection molding machine with a fast feeding structure according to claim 1, characterized in that: A plurality of stirring rods (213) are fixed to the outer side of the transmission rod (212), and a threaded head is fixed to the lower end of the transmission rod (212).

3. The injection molding machine with a fast feeding structure according to claim 2, characterized in that: A threaded hole is provided at the center of the upper end surface of the crushing core (214), and a positioning socket is provided at the lower end surface of the crushing core (214).

4. The injection molding machine with a fast feeding structure according to claim 3, characterized in that: A fixing plate (2151) is fixed to the upper end of the spiral blade rod (215), and the fixing plate (2151) is fixed to the lower end of the crushing core (214) by screws. A plug post (2152) is fixed to the center of the upper surface of the fixing plate (2151).

5. The injection molding machine with a fast feeding structure according to claim 4, characterized in that: A clamping ring (242) is fixed to the upper end of the discharge tube (24), and a mounting edge (243) is fixed to the lower end of the discharge tube (24).

6. The injection molding machine with a fast feeding structure according to claim 5, characterized in that: A mounting sleeve (231) is fixed to the lower end of the barrel (23), and a plurality of locking screws (232) are threadedly mounted on the outer side of the mounting sleeve (231). A plurality of vertical slots (233) are formed on the inner side wall of the barrel (23).

7. The injection molding machine with a fast feeding structure according to claim 6, characterized in that: The support frame (25) comprises a support sleeve (251), a plurality of support rods (253) are fixed to the outside of the support sleeve (251), and one end of the support rod (253) away from the support sleeve (251) is clamped in the clamping groove (233), and a bearing (252) is clamped in the center of the support sleeve (251).

8. The injection molding machine with a fast feeding structure according to claim 7, characterized in that: A feed pipe (221) is fixed to the upper surface of the cylinder cover (22), and a clamping platform (224) is fixed to the lower side of the cylinder cover (22). A plurality of limit blocks (225) are fixed around the outer side of the clamping platform (224). Vertically downward locking plates (222) are fixed to the left and right sides of the cylinder cover (22), and a tightening screw (223) is threadedly installed on the locking plate (222).

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