Feeding equipment for injection molding machine
By introducing unblocking and conveying components into the injection molding machine's feeding equipment, the problem of material blockage is solved by utilizing airflow and mechanical force, thereby improving the effectiveness and practicality of the feeding equipment and ensuring the stability and efficiency of injection molding.
Patent Information
- Application Number
- CN202520397113.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-08
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-08
AI Technical Summary
The material inlet of the feeding equipment of existing injection molding machines is prone to blockage and is inconvenient to clear, resulting in poor performance and insufficient practicality.
A feeding device comprising a feed cylinder, a dredging component, and a conveying component was designed. It utilizes a small air pump and a motor-driven dredging nozzle and a spiral conveying rod to solve blockage problems through airflow dredging and mechanical conveying.
It effectively clears blockages at the material inlet, improves the stability and practicality of the feeding equipment, and ensures the quality and efficiency of injection molding.
Smart Images

Figure CN223934034U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of injection molding machine feeding technology, specifically a feeding device for injection molding machines. Background Technology
[0002] The feeding device is a crucial component of an injection molding machine, its primary function being to transport raw materials into the mold. This device typically consists of components such as a hopper, screw, and barrel. During the injection molding process, the feeding device delivers heated and molten raw materials into the mold through the rotation and propulsion of the screw. The stability and reliability of the feeding device directly affect the quality and efficiency of the injection molding process, making it one of the most critical components of an injection molding machine.
[0003] However, when most existing injection molding machines use screws as feeding devices to transport materials such as plastics, blockages easily occur at the material inlet, and it is inconvenient to clear the blockages. As a result, the feeding device is not effective enough and not practical enough. Therefore, a feeding device for injection molding machines is proposed to address the above problems. Utility Model Content
[0004] To overcome the shortcomings of existing technologies and solve the problem that most existing injection molding machines typically use screws as feeding devices for conveying plastics and other materials, which are prone to blockage at the material inlet and are difficult to clear, resulting in poor performance and limited practicality of the feeding device, this utility model proposes a feeding device for injection molding machines.
[0005] The technical solution adopted by this utility model to solve its technical problem is: the feeding device for injection molding machine of this utility model includes a feeding cylinder, and an inner groove is opened inside the feeding cylinder;
[0006] A feed pipe is fixedly installed on the bottom left side of the feed cylinder, and the inside of the feed pipe is connected to the inside of the inner tank. A connecting pipe is fixedly installed on the top right side of the feed cylinder, and the inside of the connecting pipe is connected to the inside of the inner tank. A conveying assembly is provided inside the inner tank. A feed hopper is fixedly connected to the top of the connecting pipe, and the inside of the feed hopper is connected to the inside of the connecting pipe. Unblocking components are provided on both the left and right sides of the feed hopper.
[0007] Preferably, the unblocking component includes a housing, which is fixedly connected to the feed hopper. A through-hole is formed on one side of the feed hopper, and a baffle is inserted into the through-hole. A sliding groove is formed inside the housing, and the interior of the sliding groove communicates with the interior of the through-hole. An electric push rod is fixedly installed on one side of the interior of the sliding groove. A slider is slidably connected inside the sliding groove, and the slider is fixedly connected to the baffle. The electric push rod is fixedly connected to the slider. An air jet component is provided between the interior of the slider and the outer surface of the housing.
[0008] Preferably, the jet assembly includes a small air pump, which is fixedly connected to the housing. A telescopic hose is fixedly installed at the output end of the small air pump. A through-type mounting groove is opened inside the slider. A dredging nozzle is fixedly connected inside the mounting groove. A through-type through hole is opened on the upper surface inside the slider. One end of the telescopic hose passes through the through hole and is fixedly installed to the dredging nozzle.
[0009] Preferably, the conveying assembly includes a slot, which is located on the left side inside the inner groove. A through hole is located on the right side inside the inner groove. A spiral conveying rod is rotatably connected between the through hole and the slot via a bearing. A motor is fixedly installed on the right side of the feed cylinder, and the output end of the motor is fixedly connected to the right end of the spiral conveying rod.
[0010] Preferably, the side of the baffle near the center of the inside of the feed hopper is on the same plane as the inclined side inside the feed hopper.
[0011] Preferably, the baffle is slidably connected to the through groove, and the side of the baffle away from the center of the feed hopper is in contact with the outer surface of the outer shell.
[0012] Preferably, a handle is fixedly connected to the top left side of the outer surface of the feed cylinder.
[0013] The advantages of this utility model are:
[0014] 1. This utility model uses a small air pump to deliver airflow, which enters the unblocking nozzle through a telescopic hose and is then sprayed out through the nozzle. This allows the airflow from the nozzle to unblock the inside of the feed hopper and connecting pipe. The airflow can directly impact the blockage, resulting in a good unblocking effect. The telescopic hose can also be used in conjunction with the sliding of the slider and can be used and stored in conjunction with the extension of the nozzle.
[0015] 2. This utility model uses a motor to make the motor work when it is powered on, and the motor drives the screw conveyor to rotate. After the screw conveyor rotates, the material can be conveyed. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the three-dimensional structure in Example 1;
[0018] Figure 2 This is a partial cross-sectional view of the feed cylinder in Example 1;
[0019] Figure 3 This is a partial cross-sectional view of the unblocking component in Embodiment 1;
[0020] Figure 4 As in Example 1 Figure 3 Enlarged structural diagram at point A in the middle;
[0021] Figure 5 This is a schematic diagram of the handle structure in Embodiment 2.
[0022] In the diagram: 1. Feed cylinder; 2. Feed pipe; 3. Feed hopper; 4. Connecting pipe; 5. Motor; 6. Unblocking component; 61. Telescopic hose; 62. Small air pump; 63. Housing; 64. Slide; 65. Electric push rod; 66. Slider; 67. Unblocking nozzle; 68. Baffle; 69. Through groove; 610. Mounting groove; 611. Through hole; 7. Slot; 8. Spiral conveyor rod; 9. Through hole; 10. Handle. Detailed Implementation
[0023] 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.
[0024] Example 1
[0025] Please see Figure 1-4 As shown, a feeding device for an injection molding machine includes a feeding cylinder 1, wherein an inner groove is provided inside the feeding cylinder 1;
[0026] A feed pipe 2 is fixedly installed on the bottom left side of the feed cylinder 1, and the inside of the feed pipe 2 communicates with the inside of the inner groove. A connecting pipe 4 is fixedly installed on the top right side of the feed cylinder 1, and the inside of the connecting pipe 4 communicates with the inside of the inner groove. A conveying component is provided inside the inner groove. A feed hopper 3 is fixedly connected to the top of the connecting pipe 4, and the inside of the feed hopper 3 communicates with the inside of the connecting pipe 4. Unblocking components 6 are provided on both the left and right sides of the feed hopper 3. During operation, the injection molding machine is fed through the feed hopper 3 and the connecting pipe 4, and the feed cylinder 1 and the feed pipe 2. During the feeding process, the material is conveyed by the conveying component inside the feed cylinder 1. When blockage occurs inside the feed hopper 3 and the connecting pipe 4 during the feeding process, it can be unblocked by the unblocking components 6. This allows the equipment to meet more usage needs and is highly practical.
[0027] The unblocking component 6 includes a housing 63, which is fixedly connected to the feed hopper 3. A through-hole 69 is formed on one side of the feed hopper 3, and a baffle 68 is inserted into the through-hole 69. A sliding groove 64 is formed inside the housing 63, communicating with the through-hole 69. An electric push rod 65 is fixedly installed on one side of the sliding groove 64, and a slider 66 is slidably connected inside the sliding groove 64. The slider 66 is fixedly connected to the baffle 68. Block 66 is fixedly connected, and an air jet assembly is provided between the inside of the slider 66 and the outer surface of the outer shell 63. During operation, the electric push rod 65 is energized to drive the slider 66 to slide inside the slide groove 64. After the slider 66 slides, it can drive the baffle 68 to move out of the through groove 69. After the baffle 68 moves out of the through groove 69, the air jet assembly can extend to unclog the blockage. When the air jet assembly is not in use, it can be stored inside the outer shell 63, which makes it convenient to use and highly practical.
[0028] The jet assembly includes a small air pump 62, which is fixedly connected to the housing 63. A telescopic hose 61 is fixedly installed at the output end of the small air pump 62. A through-hole 610 is opened inside the slider 66, and a cleaning nozzle 67 is fixedly connected inside the mounting groove 610. A through-hole 611 is opened on the upper surface of the inner side of the slide groove 64. One end of the telescopic hose 61 passes through the through-hole 611, and the other end of the telescopic hose 61 is fixedly installed to the cleaning nozzle 67. During operation, the small air pump 62 is powered on to deliver airflow, which enters the cleaning nozzle 67 through the telescopic hose 61 and is sprayed out through the cleaning nozzle 67. In this way, the airflow sprayed out by the cleaning nozzle 67 can unclog the inside of the feed hopper 3 and the connecting pipe 4. The airflow can directly impact the blockage, resulting in a better unblocking effect. At the same time, the telescopic hose 61 can cooperate with the sliding of the slider 66 and can be used and stored in conjunction with the extension of the nozzle.
[0029] The conveying assembly includes a slot 7, which is located on the left side inside the inner groove. A through hole 9 is located on the right side inside the inner groove. A spiral conveying rod 8 is rotatably connected between the through hole 9 and the slot 7 via a bearing. A motor 5 is fixedly installed on the right side of the feed cylinder 1. The output end of the motor 5 is fixedly connected to the right end of the spiral conveying rod 8. During operation, the motor 5 is energized to drive the spiral conveying rod 8 to rotate, thereby conveying the material.
[0030] The side of the baffle 68 near the center of the inside of the feed hopper 3 is on the same plane as the inclined side inside the feed hopper 3. During operation, the baffle 68 is in a closed state when the inside of the feed hopper 3 does not need to be cleared, and it will not affect the feeding.
[0031] The baffle 68 is slidably connected to the through groove 69, and the side of the baffle 68 away from the center of the inside of the feed hopper 3 is in contact with the outer surface of the outer shell 63; during operation, it is convenient for the baffle 68 to slide open and close inside the through groove 69.
[0032] Example 2
[0033] Please see Figure 5 As shown in the first embodiment, as another implementation of this utility model, a handle 10 is fixedly connected to the top left side of the outer surface of the feed cylinder 1; during operation, the handle 10 facilitates the movement and handling of the device.
[0034] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A feeding device for an injection molding machine, comprising a feeding cylinder (1), wherein an inner groove is provided inside the feeding cylinder (1); Its features are: A feed pipe (2) is fixedly installed on the bottom left side of the feed cylinder (1). The inside of the feed pipe (2) is connected to the inside of the inner groove. A connecting pipe (4) is fixedly installed on the top right side of the feed cylinder (1). The inside of the connecting pipe (4) is connected to the inside of the inner groove. A conveying component is provided inside the inner groove. A feed hopper (3) is fixedly connected to the top of the connecting pipe (4). The inside of the feed hopper (3) is connected to the inside of the connecting pipe (4). Unblocking components (6) are provided on both the left and right sides of the feed hopper (3).
2. The feeding device for an injection molding machine according to claim 1, characterized in that: The unblocking component (6) includes a housing (63), which is fixedly connected to the feed hopper (3). A through-hole groove (69) is provided on one side of the feed hopper (3). A baffle (68) is inserted into the through-hole groove (69). A sliding groove (64) is provided inside the housing (63). The inside of the sliding groove (64) is connected to the inside of the through-hole groove (69). An electric push rod (65) is fixedly installed on one side of the inside of the sliding groove (64). A slider (66) is slidably connected inside the sliding groove (64). The slider (66) is fixedly connected to the baffle (68). The electric push rod (65) is fixedly connected to the slider (66). An air jet component is provided between the inside of the slider (66) and the outer surface of the housing (63).
3. The feeding device for an injection molding machine according to claim 2, characterized in that: The jet assembly includes a small air pump (62), which is fixedly connected to the outer casing (63). A telescopic hose (61) is fixedly installed at the output end of the small air pump (62). A through-type mounting groove (610) is opened inside the slider (66). A dredging nozzle (67) is fixedly connected inside the mounting groove (610). A through-type through hole (611) is opened on the upper surface inside the slide groove (64). One end of the telescopic hose (61) passes through the through hole (611) and is fixedly installed to the dredging nozzle (67).
4. The feeding device for an injection molding machine according to claim 3, characterized in that: The conveying assembly includes a slot (7), which is located on the left side inside the inner groove. A through hole (9) is provided on the right side inside the inner groove. A spiral conveying rod (8) is rotatably connected between the through hole (9) and the slot (7) via a bearing. A motor (5) is fixedly installed on the right side of the feed cylinder (1). The output end of the motor (5) is fixedly connected to the right end of the spiral conveying rod (8).
5. A feeding device for an injection molding machine according to claim 4, characterized in that: The side of the baffle (68) near the center of the inside of the feed hopper (3) is on the same plane as the inclined side inside the feed hopper (3).
6. The feeding device for an injection molding machine according to claim 5, characterized in that: The baffle (68) is slidably connected to the through groove (69), and the side of the baffle (68) away from the center of the feed hopper (3) is in contact with the outer surface of the outer shell (63).
7. A feeding device for an injection molding machine according to claim 6, characterized in that: A handle (10) is fixedly connected to the top left side of the outer surface of the feed cylinder (1).