Injection molding structure of injection molding machine

Abstract

The utility model relates to the technical field of injection molding machines, and discloses an injection molding structure of an injection molding machine, which comprises a base, an injection molding barrel arranged on one side of the base and used for injection molding, a charging barrel arranged at the top of the injection molding barrel and used for charging, and a propelling screw rod arranged in the injection molding barrel and used for driving raw materials to be conveyed, a discharging assembly used for discharging is arranged in the feeding cylinder, a discharging opening and a heating groove are formed in the discharging assembly, a plurality of discharging holes which are arranged in a circumferential mode are formed in the bottom of the heating groove, a plurality of heating strips which are arranged in a circumferential mode and used for heating are arranged in the heating groove, and the heating strips are of an annular structure and fixed to the inner wall of the heating groove. The inner wall of the feeding cylinder is fixedly connected with a fixing disc, the bottom of the fixing disc is rotationally connected with a rotating shaft through a motor, and the rotating shaft is provided with a cleaning assembly used for cleaning the discharging opening and the discharging hole. According to the utility model, the blanking port and the heating groove are arranged, so that the blanking port is prevented from being blocked by hardening of raw materials, and the waste of the raw materials can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding machines, in particular to an injection molding structure of an injection molding machine. Background Art

[0002] Injection molding machine is also known as injection molding machine or injection machine. Many factories call it beer machine and injection molded products are called beer parts. It is the main molding equipment for thermoplastic plastics or thermosetting materials using plastic molding molds to make plastic products of various shapes. Injection molding machine can be divided into vertical, horizontal and vertical-horizontal composite types according to the arrangement of injection device and clamping device. Injection molding machine can heat plastic and apply high pressure to molten plastic to make it eject and fill the mold.

[0003] After searching, the application number "201920806477.7" is found. It is an injection molding buffer structure of an injection molding machine, which relates to the field of injection molding machines, including a feeding barrel, an injection molding barrel and a pushing screw rod. The pushing screw rod is arranged in the injection molding barrel. The raw material falls from the feeding barrel into the injection molding barrel and is pushed forward by the pushing screw rod. A buffer device for the falling raw material is detachably arranged in the feeding barrel. The buffer device includes a cylinder, a buffer cap and a buffer eaves. The buffer cap is conical in shape with the tip facing upward. The buffer eaves is funnel-shaped. The periphery of the buffer eaves is connected to the inner wall of the cylinder. The buffer cap is arranged above the buffer eaves. The buffer cap and the buffer eaves are connected by a connecting rod. The buffer cap covers the small middle opening of the buffer eaves in the vertical direction. The utility model provides an injection molding buffer structure of an injection molding machine, which reduces the impact force on the pushing screw rod during the period when the raw material first falls, thereby effectively protecting the pushing screw rod and extending its service life, and will not affect the use and maintenance of the entire injection mechanism.

[0004] When this technical solution is used, when the raw materials are fed, a part of the raw materials are easy to harden during cooling and accumulate at the feeding port, which affects the feeding efficiency of the raw materials and is difficult to clean, resulting in a waste of raw materials.

[0005] To this end, we propose an injection molding structure of an injection molding machine. Utility Model Content

[0006] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides an injection molding structure of an injection molding machine.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an injection molding structure of an injection molding machine, comprising a base, an injection molding cylinder arranged on one side of the base for injection molding, a feeding cylinder arranged on the top of the injection molding cylinder for feeding, and a propulsion screw rod arranged in the injection molding cylinder for driving the raw material transportation, a feeding assembly for feeding is arranged in the feeding cylinder, the feeding assembly includes a feeding port and a heating groove, a plurality of circumferentially arranged feeding holes are opened at the bottom of the heating groove, and a plurality of circumferentially arranged heating strips for heating are arranged in the heating groove, the heating strip is a ring structure fixed on the inner wall of the heating groove, a fixed disk is fixedly connected to the inner wall of the feeding cylinder, a rotating shaft is connected to the bottom of the fixed disk through a motor, a cleaning assembly for cleaning the feeding port and the feeding hole is arranged on the rotating shaft, the cleaning assembly includes a scraper and a cleaning block, and a rotating part for driving the cleaning block to rotate is arranged on the rotating shaft, and the rotating part includes a fixed rod, a transmission rod and a connecting rotating rod.

[0008] Furthermore, the material discharge port is a concave structure, a through hole for material discharge is provided at the bottom end of the fixed plate, the scraper is fixedly connected to the outer wall of the rotating shaft, and the outer wall of the scraper is in contact with the concave surface of the material discharge port.

[0009] Furthermore, a connecting plate is fixedly connected to the outer wall of the rotating shaft, a plurality of linearly arranged first rotating holes are opened at the bottom end of the connecting plate, a connecting rotating rod is rotatably connected to the inner wall of the first rotating hole, a cleaning seat is arranged at the bottom end of the connecting rotating rod, and the cleaning seat contacts the inner wall of the bottom of the heating tank.

[0010] Furthermore, a through hole is opened at the bottom end of the cleaning seat, the cleaning block is slidably connected to the inner wall of the through hole, a return spring connected to the top inner wall of the through hole is arranged on the top of the cleaning block, the cross-section of the bottom of the cleaning block is arc-shaped, and the cleaning block and the feed hole are located on the same axis.

[0011] Furthermore, a through groove is opened at the bottom end of the rotating shaft, which passes through the rotating shaft and extends to the inner wall of the bottom of the heating tank. The fixed rod is arranged on the inner wall of the through groove. The bottom end of the fixed rod is fixedly connected to the inner wall of the bottom of the heating tank. The top end of the fixed rod is rotatably connected to the inner wall of the top of the rotating shaft, and the outer wall of the fixed rod is fixedly connected to the first bevel gear.

[0012] Furthermore, a second rotating hole is opened at one end of the connecting plate near the rotating shaft, the second rotating hole extends to the inner wall of the rotating shaft, and the transmission rod is rotatably connected to the inner wall of the second rotating hole, one end of the transmission rod is rotatably connected to the inner wall of the connecting plate away from the rotating shaft, and the other end of the transmission rod is fixedly connected to the second bevel gear meshing with the first bevel gear.

[0013] Furthermore, a plurality of third bevel gears arranged linearly are fixedly connected to the outer wall of the transmission rod, and a fourth bevel gear meshing with the third bevel gears is fixedly connected to the axial position of the top of the connecting rod.

[0014] Beneficial Effects

[0015] The utility model provides an injection molding structure of an injection molding machine, which has the following beneficial effects:

[0016] (1) The injection molding structure of the injection molding machine can scrape the hardened raw material into the heating tank through the provided feed port and heating tank, and then re-load the raw material through the heating strip in the heating tank, thereby avoiding blockage of the feed port due to hardening of the raw material and avoiding waste of raw materials.

[0017] (2) The injection molding structure of the injection molding machine can conveniently clean the bottom of the heating tank through the cleaning component, thereby avoiding the accumulation of raw materials at the bottom of the heating tank and affecting the feeding efficiency, and can clean the discharge hole to avoid clogging of the discharge hole and further affecting the feeding efficiency of the raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is the front view of the utility model;

[0019] Figure 2 This is a cross-sectional view of the utility model;

[0020] Figure 3 For this utility model Figure 2 A magnified view of part A;

[0021] Figure 4 For this utility model Figure 3 A magnified view of part B;

[0022] Figure 5 For this utility model Figure 3 Enlarged view of part C.

[0023] Legend: 1. Base; 2. Injection cylinder; 3. Feeding cylinder; 4. Pushing screw rod; 5. Fixed plate; 6. Feeding port; 7. Heating groove; 8. Feeding hole; 9. Heating strip; 10. Rotating shaft; 11. Scraper; 12. Connecting plate; 13. Fixed rod; 14. First bevel gear; 15. Second bevel gear; 16. Transmission rod; 17. Third bevel gear; 18. Fourth bevel gear; 19. Connecting rotating rod; 20. Cleaning seat; 21. Reset spring; 22. Cleaning block. DETAILED DESCRIPTION

[0024] Embodiment 1: An injection molding structure of an injection molding machine, such as Figure 1 , Figure 2 and Figure 3As shown, it includes a base 1, an injection cylinder 2 for injection molding arranged on one side of the base 1, a feeding cylinder 3 for feeding arranged on the top of the injection cylinder 2, and a propulsion screw rod 4 arranged in the injection cylinder 2 for driving the raw material transportation. A feeding assembly for feeding is arranged in the feeding cylinder 3, and the feeding assembly includes a feeding port 6 and a heating groove 7. A plurality of feeding holes 8 arranged in a circumferential manner are opened at the bottom of the heating groove 7, and a plurality of heating strips 9 for heating arranged in a circumferential manner are arranged in the heating groove 7. The heating strips 9 are annular structures fixed on the inner wall of the heating groove 7. A fixed disk 5 is fixedly connected to the inner wall of the feeding cylinder 3. A rotating shaft 10 is connected to the bottom of the fixed disk 5 through a motor. A cleaning assembly for cleaning the feeding port 6 and the feeding hole 8 is arranged on the rotating shaft 10. The cleaning assembly includes a scraper 11 and a cleaning block 22, and a rotating part for driving the cleaning block 22 to rotate is arranged on the rotating shaft 10, and the rotating part includes a fixed rod 13, a transmission rod 16 and a connecting rotating rod 19.

[0025] The material discharge port 6 is a concave structure. A through hole for material discharge is provided at the bottom end of the fixed plate 5 . The scraper 11 is fixedly connected to the outer wall of the rotating shaft 10 , and the outer wall of the scraper 11 contacts the concave surface of the material discharge port 6 .

[0026] By setting the feed port 6 and the heating tank 7, the hardened raw material can be scraped off by the scraper 11 and dropped into the heating tank 7. The material can be loaded again by heating the heating strip 9 in the heating tank 7, thus avoiding the blockage of the feed port 6 caused by the hardening of the raw material and avoiding the waste of raw materials.

[0027] like Figure 3 , Figure 4 and Figure 5 As shown, a connecting plate 12 is fixedly connected to the outer wall of the rotating shaft 10, and a plurality of linearly arranged first rotating holes are opened at the bottom end of the connecting plate 12. A connecting rotating rod 19 is rotatably connected to the inner wall of the first rotating hole, and a cleaning seat 20 is arranged at the bottom end of the connecting rotating rod 19, and the cleaning seat 20 is in contact with the inner wall of the bottom of the heating tank 7.

[0028] A through hole is opened at the bottom end of the cleaning seat 20, and the cleaning block 22 is slidably connected to the inner wall of the through hole. A return spring 21 connected to the inner wall of the top of the through hole is arranged on the top of the cleaning block 22. The cross-section of the bottom of the cleaning block 22 is arc-shaped, and the cleaning block 22 and the feed hole 8 are located on the same axis.

[0029] A through groove is opened at the bottom end of the rotating shaft 10, which passes through the rotating shaft 10 and extends to the bottom inner wall of the heating tank 7. A fixed rod 13 is arranged on the inner wall of the through groove. The bottom end of the fixed rod 13 is fixedly connected to the bottom inner wall of the heating tank 7. The top end of the fixed rod 13 is rotatably connected to the top inner wall of the rotating shaft 10, and the outer wall of the fixed rod 13 is fixedly connected with a first bevel gear 14.

[0030] A second rotating hole is opened at one end of the connecting plate 12 close to the rotating shaft 10, and the second rotating hole extends to the inner wall of the rotating shaft 10, and the transmission rod 16 is rotatably connected to the inner wall of the second rotating hole, and one end of the transmission rod 16 is rotatably connected to the inner wall of the connecting plate 12 away from the rotating shaft 10, and the other end of the transmission rod 16 is fixedly connected to the second bevel gear 15 meshing with the first bevel gear 14.

[0031] A plurality of third bevel gears 17 arranged linearly are fixedly connected to the outer wall of the transmission rod 16 , and a fourth bevel gear 18 meshing with the third bevel gears 17 is fixedly connected to the top axial position of the connecting rotating rod 19 .

[0032] In summary, through the setting of the cleaning component, the bottom of the heating tank 7 can be cleaned conveniently to avoid the accumulation of raw materials at the bottom of the heating tank 7 and affect the feeding efficiency, and the discharge hole 8 can be cleaned to avoid the discharge hole 8 from being blocked and further affecting the feeding efficiency of the raw materials.

[0033] The working principle of the utility model is as follows: when it is necessary to load materials, the raw materials are added into the feeding barrel 3, and the materials are discharged through the discharge port 6 and the discharge hole 8 on the heating tank 7. A part of the raw materials cools and hardens and adheres to the concave surface of the discharge port 6. At this time, the motor on the rotating shaft 10 can be turned on to drive the rotating shaft 10 and the scraper 11 thereon to rotate, and the scraper 11 can scrape the raw materials on the concave surface of the discharge port 6 and drop them through the through hole at the bottom thereof, and the materials are heated and softened by the heating strip 9 in the heating tank 7 and loaded through the discharge hole 8; and when the rotating shaft 10 rotates, the connecting plate 12 can be driven to rotate synchronously, and the connecting plate 12 drives the connecting rotating rod 19 and the cleaning seat 20 thereon to rotate synchronously to clean the bottom of the heating tank 7, and the fixing rod 13 is a fixed structure, which then rotates with the transmission rod 1 on the connecting plate 12 6, the transmission rod 16 can be driven to rotate under the action of the first bevel gear 14 and the second bevel gear 15 which are meshed with each other, and the transmission rod 16 can drive the fourth bevel gear 18 to rotate through the third bevel gear 17, and then drive the cleaning seat 20 to rotate through the connecting rotating rod 19; and when the connecting plate 12 rotates with the rotating shaft 10, when the cleaning block 22 on the connecting plate 12 rotates to the feeding hole 8, the cleaning block 22 can be driven to fall into the feeding hole 8 under the elastic force of the reset spring 21, and clean the feeding hole 8 with the self-rotation of the cleaning seat 20. When the cleaning block 22 is misaligned with the feeding hole 8, the cleaning block 22 can be driven to move back into the cleaning seat 20 by squeezing the bottom arc surface of the cleaning block 22 by the inner wall of the feeding hole 8, and then the feeding holes 8 can be cleaned in sequence.

[0034] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An injection molding structure of an injection molding machine, comprising a base (1), an injection molding cylinder (2) disposed on one side of the base (1) for injection molding, a feeding cylinder (3) disposed on the top of the injection molding cylinder (2) for feeding materials, and a propulsion screw (4) disposed in the injection molding cylinder (2) for driving the raw material transportation, characterized in that: The feeding barrel (3) is provided with a feeding assembly for feeding, the feeding assembly includes a feeding port (6) and a heating groove (7), a plurality of feeding holes (8) arranged in a circumferential manner are provided at the bottom of the heating groove (7), and a plurality of heating strips (9) arranged in a circumferential manner for heating are provided in the heating groove (7), the heating strips (9) are annular structures fixed on the inner wall of the heating groove (7), a fixed disk (5) is fixedly connected to the inner wall of the feeding barrel (3), the bottom of the fixed disk (5) is connected to a rotating shaft (10) through a motor, a cleaning assembly for cleaning the feeding port (6) and the feeding hole (8) is provided on the rotating shaft (10), the cleaning assembly includes a scraper (11) and a cleaning block (22), and a rotating part for driving the cleaning block (22) to rotate is provided on the rotating shaft (10), and the rotating part includes a fixing rod (13), a transmission rod (16) and a connecting rotating rod (19).

2. The injection molding structure of the injection molding machine according to claim 1, characterized in that: The material discharge port (6) is a concave structure, a through hole for material discharge is provided at the bottom end of the fixed plate (5), the scraper (11) is fixedly connected to the outer wall of the rotating shaft (10), and the outer wall of the scraper (11) is in contact with the concave surface of the material discharge port (6).

3. The injection molding structure of the injection molding machine according to claim 1, characterized in that: The outer wall of the rotating shaft (10) is fixedly connected to a connecting plate (12), a plurality of linearly arranged first rotating holes are opened at the bottom end of the connecting plate (12), a connecting rotating rod (19) is rotatably connected to the inner wall of the first rotating hole, a cleaning seat (20) is arranged at the bottom end of the connecting rotating rod (19), and the cleaning seat (20) is in contact with the inner wall of the bottom of the heating tank (7).

4. The injection molding structure of the injection molding machine according to claim 3, characterized in that: A through hole is formed at the bottom end of the cleaning seat (20), a cleaning block (22) is slidably connected to the inner wall of the through hole, a return spring (21) connected to the inner wall of the top of the through hole is arranged at the top of the cleaning block (22), the bottom cross-section of the cleaning block (22) is arc-shaped, and the cleaning block (22) and the feed hole (8) are located on the same axis.

5. The injection molding structure of the injection molding machine according to claim 4, characterized in that: A through slot is formed at the bottom end of the rotating shaft (10), the through slot passes through the rotating shaft (10) and extends to the bottom inner wall of the heating tank (7), a fixing rod (13) is arranged on the inner wall of the through slot, the bottom end of the fixing rod (13) is fixedly connected to the bottom inner wall of the heating tank (7), the top end of the fixing rod (13) is rotatably connected to the top inner wall of the rotating shaft (10), and the outer wall of the fixing rod (13) is fixedly connected to a first bevel gear (14).

6. The injection molding structure of the injection molding machine according to claim 5, characterized in that: A second rotating hole is formed at one end of the connecting plate (12) close to the rotating shaft (10), the second rotating hole extends to the inner wall of the rotating shaft (10), and a transmission rod (16) is rotatably connected to the inner wall of the second rotating hole, one end of the transmission rod (16) is rotatably connected to the inner wall of the connecting plate (12) away from the rotating shaft (10), and the other end of the transmission rod (16) is fixedly connected to a second bevel gear (15) meshing with the first bevel gear (14).

7. The injection molding structure of the injection molding machine according to claim 6, characterized in that: The outer wall of the transmission rod (16) is fixedly connected to a plurality of third bevel gears (17) arranged in a linear manner, and the top axial position of the connecting rotating rod (19) is fixedly connected to a fourth bevel gear (18) meshing with the third bevel gears (17).

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