A prolonging ejection device for an automobile injection mold

Abstract

The utility model discloses a prolonging ejection device of automobile injection mold relates to the technical field of automobile injection mold. The prolonging ejection device of automobile injection mold, including installation frame and ejection mechanism, the top of installation frame is provided with the hollow block, ejection mechanism sets up at the top of installation frame, and ejection mechanism includes hollow pole, internal thread rod and threaded rod, and the top of hollow block is fixedly connected with one end of a plurality of hollow poles, and the inside bottom of hollow block is rotatably connected with one end of a plurality of threaded rods, and the other end of threaded rod extends to the inside of a group of hollow poles respectively. Can be through the hollow pole and be ejected with the injection molding piece initially, then through the elongation of internal thread rod and eject the injection molding piece completely, prolong the ejection stroke of device, satisfy the ejection demand of the injection molding piece of the greater depth of automobile, guarantee the injection molding piece and come off from the die cavity smoothly, be convenient for collecting, effectively improved production efficiency, reduced the probability of injection molding piece damage, reduced production cost.

Description

Technical Field

[0001] This utility model relates to the field of automotive injection mold technology, and in particular to an extended ejection device for automotive injection molds. Background Technology

[0002] Chinese patent document CN219705967U discloses an automatic ejection device for automotive injection molds, relating to the field of injection mold technology. This automatic ejection device includes a lower mold, to which an upper mold is connected, forming an injection cavity for molding automotive interior trim. A push rod slides through the bottom of the injection cavity, and an elastic mechanism connected to the bottom of the lower mold is mounted on the bottom of the push rod. By installing the elastic mechanism at the bottom of the lower mold, with the push rod mounted on top, and the bottom of the push rod extending into the injection cavity, the elastic mechanism can be pressed downwards after the upper and lower molds are closed, causing it to elastically deform. This moves the top of the push rod into the bottom of the injection cavity. After the automotive interior trim is injection molded in the cavity, the mold can be opened, and the elastic mechanism resets, causing the push rod to automatically move upwards, thus automatically ejecting the molded part from the injection cavity. This method is convenient to operate and reduces energy consumption.

[0003] The ejector rod of the automatic ejection device for the aforementioned automotive injection mold has a fixed ejection stroke. However, some automotive injection mold cavities have a large depth, which may result in insufficient ejection stroke. This can cause the injection molded parts to fail to be ejected smoothly from the mold cavity, affecting production efficiency and potentially damaging the injection molded parts, thus increasing production costs. Utility Model Content

[0004] The purpose of this utility model is to provide an extended ejection device for automotive injection molds, which can solve the problem that the ejection stroke of the ejector rod in the above-mentioned automatic ejection device for automotive injection molds is fixed. However, some automotive injection mold cavities have a large depth, which may result in insufficient ejection stroke, causing the injection molded parts to fail to be ejected smoothly from the mold cavity. This not only affects production efficiency but may also damage the injection molded parts and increase production costs.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an extended ejection device for automotive injection molds, comprising a mounting frame and an ejection mechanism, wherein a hollow block is disposed above the mounting frame; the ejection mechanism is disposed above the mounting frame and includes a hollow rod, an internally threaded rod, and a threaded rod, wherein the top of the hollow block is fixedly connected to one end of a plurality of hollow rods, and the inner bottom of the hollow block is rotatably connected to one end of a plurality of threaded rods, wherein the other end of the threaded rod extends into the interior of a plurality of hollow rods, and a plurality of internally threaded rods are slidably mounted on the inner wall of the hollow rods via strip slide rails, wherein the outer wall of the threaded rod is threadedly connected to the interior of the internally threaded rod.

[0006] Preferably, the ejection mechanism further includes a secondary gear, a rotating rod, a main gear, and a servo motor. The outer wall of the threaded rod is fixedly connected to the interior of a set of secondary gears, which are located inside the hollow block. A rotating rod is rotatably mounted on the inner bottom of the hollow block. The outer wall of the rotating rod is fixedly connected to the interior of the main gear, and the main gear meshes with the secondary gear. A servo motor is fixedly mounted on the bottom of the hollow block, and the output shaft of the servo motor is fixedly connected to one end of the rotating rod. This mechanism can initially eject the injection molded part through the hollow rod, and then completely eject the injection molded part through the extension of the internal threaded rod. This extends the ejection stroke of the device, meets the ejection requirements of deep automotive injection molded parts, ensures that the injection molded part is smoothly ejected from the mold cavity, facilitates collection, effectively improves production efficiency, reduces the probability of damage to the injection molded part, reduces production costs, and improves the flexibility and practicality of the device.

[0007] Preferably, a set of connecting blocks are threadedly installed on the inner wall of the internally threaded rod. One end of the connecting block extends to the top of the internally threaded rod and is fixedly installed with a top material block. A sealing gasket is provided on the outer wall of the top material block.

[0008] Preferably, a protective cover is fixedly installed at the bottom of the hollow block, and the servo motor is located inside the protective cover.

[0009] Preferably, a servo electric cylinder is fixedly installed on the inner bottom of the mounting frame, and the free end of the servo electric cylinder is fixedly connected to the bottom of the protective cover.

[0010] Preferably, fixing blocks are fixedly installed on the inner walls of both sides of the mounting frame, and sliding rods are fixedly installed on the bottom of the hollow blocks, with the outer wall of the sliding rods slidably connected to the inside of the fixing blocks.

[0011] Preferably, bolt holes are provided on the inner bottom of the mounting frame.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This extended ejection device for automotive injection molds, through the coordinated use of a hollow rod, an internal threaded rod, a threaded rod, a secondary gear, a rotating rod, a main gear, and a servo motor, can initially eject the injection part through the hollow rod, and then completely eject the injection part through the extension of the internal threaded rod. This extended ejection stroke meets the ejection requirements of deep automotive injection parts, ensuring that the injection part smoothly exits the mold cavity for easy collection. This effectively improves production efficiency, reduces the probability of injection part damage, lowers production costs, and enhances the flexibility and practicality of the device. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the hollow block of this utility model viewed from below; Figure 3 This is a schematic diagram of the three-dimensional structure of the hollow block of this utility model; Figure 4 This is a schematic diagram of the three-dimensional structure of the hollow rod of this utility model.

[0014] Reference numerals: 1. Mounting frame; 2. Ejection mechanism; 201. Hollow rod; 202. Internally threaded rod; 203. Threaded rod; 204. Secondary gear; 205. Rotating rod; 206. Main gear; 207. Servo motor; 3. Protective cover; 4. Connecting block; 5. Ejector block; 6. Servo electric cylinder; 7. Fixing block; 8. Sliding rod; 9. Bolt hole; 10. Hollow block. Detailed Implementation

[0015] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0016] Please see Figure 1-4 This utility model provides a technical solution: an extended ejection device for an automotive injection mold, comprising a mounting frame 1 and an ejection mechanism 2. A hollow block 10 is disposed above the mounting frame 1. The ejection mechanism 2 is disposed above the mounting frame 1 and includes a hollow rod 201, an internally threaded rod 202, and a threaded rod 203. The top of the hollow block 10 is fixedly connected to one end of a plurality of hollow rods 201, and the bottom inner side of the hollow block 10 is rotatably connected to one end of a plurality of threaded rods 203. The other end of each threaded rod 203 extends into the interior of a set of hollow rods 201. A set of internally threaded rods 202 are slidably mounted on the inner wall of the hollow rod 201 via a strip slide rail. The outer wall of the threaded rod 203 is connected to the internally threaded rod 203. 02 has an internal threaded connection; a set of connecting blocks 4 are threadedly installed on the inner wall of the internal threaded rod 202, one end of the connecting block 4 extends to the top of the internal threaded rod 202 and is fixedly installed with a top material block 5, and a sealing gasket is provided on the outer wall of the top material block 5; a protective cover 3 is fixedly installed on the bottom of the hollow block 10, and the servo motor 207 is located inside the protective cover 3; a servo electric cylinder 6 is fixedly installed on the inner bottom of the mounting frame 1, and the free end of the servo electric cylinder 6 is fixedly connected to the bottom of the protective cover 3; a fixing block 7 is fixedly installed on the inner walls of both sides of the mounting frame 1, and a sliding rod 8 is fixedly installed on the bottom of the hollow block 10, and the outer wall of the sliding rod 8 is slidably connected to the inside of the fixing block 7; a bolt hole 9 is opened on the inner bottom of the mounting frame 1.

[0017] Secondly, the ejection mechanism 2 also includes a secondary gear 204, a rotating rod 205, a main gear 206, and a servo motor 207. The outer wall of the threaded rod 203 is fixedly connected to the interior of a set of secondary gears 204. The secondary gears 204 are located inside the hollow block 10. The rotating rod 205 is rotatably mounted on the inner bottom of the hollow block 10. The outer wall of the rotating rod 205 is fixedly connected to the interior of the main gear 206. The main gear 206 meshes with the secondary gear 204. The servo motor 207 is fixedly mounted on the bottom of the hollow block 10. The output shaft of the servo motor 207 is fixedly connected to one end of the rotating rod 205. The hollow rod 201 can initially eject the injection molded part, and then the extension of the internal threaded rod 202 can completely eject the injection molded part, extending the ejection stroke of the device to meet the ejection requirements of automotive injection molded parts with large depths. This ensures that the injection molded part can be smoothly ejected from the mold cavity for easy collection, effectively improving production efficiency, reducing the probability of damage to the injection molded part, reducing production costs, and improving the flexibility and practicality of the device.

[0018] Working principle: When using this device, the mounting frame 1 is fixed below the mold. Then, the hollow rod 201 and the internal threaded rod 202 are passed through the matching holes reserved in the matching mold. The connecting block 4 is screwed into the internal threaded rod 202, so that the ejector block 5 is installed on the internal threaded rod 202. After the automotive injection molded part is formed, the servo electric cylinder 6 is activated to extend. Through the sliding guide of the sliding rod 8 in the fixed block 7, the hollow block 10 is pushed to move upward, driving the hollow rod 201 to extend from the bottom of the mold. The ejector block 5 initially lifts the injection molded part. Then, the servo motor 207 is activated to drive the rotating rod 205 to rotate, driving the main gear 206 to rotate. Under the meshing transmission of the main gear 206 to each secondary gear 204, multiple sets of threaded rods 203 are driven to rotate synchronously. Under the limit of the inner wall of the hollow rod 201, the internal threaded rod 202 is driven to slide upward inside the hollow rod 201, driving the ejector block 5 to completely eject the injection molded part.

[0019] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An extended ejection device for an automotive injection mold, characterized in that, include: Mounting frame (1), with a hollow block (10) on top of the mounting frame (1); The ejection mechanism (2) is located above the mounting frame (1). The ejection mechanism (2) includes a hollow rod (201), an internal thread rod (202), and a threaded rod (203). The top of the hollow block (10) is fixedly connected to one end of multiple sets of hollow rods (201). The bottom of the inner side of the hollow block (10) is rotatably connected to one end of multiple sets of threaded rods (203). The other end of the threaded rod (203) extends into the interior of a set of hollow rods (201). A set of internal threaded rods (202) is slidably installed on the inner wall of the hollow rod (201) through a strip slide rail. The outer wall of the threaded rod (203) is connected to the internal thread of the internal threaded rod (202).

2. The automotive injection mold extension ejection device according to claim 1, characterized in that: The ejection mechanism (2) also includes a secondary gear (204), a rotating rod (205), a main gear (206), and a servo motor (207). The outer wall of the threaded rod (203) is fixedly connected to the interior of a set of secondary gears (204). The secondary gears (204) are located inside the hollow block (10). The rotating rod (205) is rotatably installed on the bottom inner side of the hollow block (10). The outer wall of the rotating rod (205) is fixedly connected to the interior of the main gear (206). The main gear (206) meshes with the secondary gear (204). The servo motor (207) is fixedly installed on the bottom of the hollow block (10). The output shaft of the servo motor (207) is fixedly connected to one end of the rotating rod (205).

3. The automotive injection mold extension ejection device according to claim 2, characterized in that: The inner wall of the internal threaded rod (202) is threaded with a set of connecting blocks (4). One end of the connecting block (4) extends to the top of the internal threaded rod (202) and is fixedly installed with a top material block (5). The outer wall of the top material block (5) is provided with a sealing gasket.

4. The extended ejection device for an automotive injection mold according to claim 3, characterized in that: A protective cover (3) is fixedly installed at the bottom of the hollow block (10), and the servo motor (207) is located inside the protective cover (3).

5. The automotive injection mold extension ejection device according to claim 4, characterized in that: A servo electric cylinder (6) is fixedly installed on the bottom inner side of the mounting frame (1), and the free end of the servo electric cylinder (6) is fixedly connected to the bottom of the protective cover (3).

6. The extended ejection device for an automotive injection mold according to claim 5, characterized in that: The mounting frame (1) has fixed blocks (7) fixedly installed on both sides of the inner wall, and a sliding rod (8) fixedly installed on the bottom of the hollow block (10). The outer wall of the sliding rod (8) is slidably connected to the inside of the fixed block (7).

7. The automotive injection mold extension ejection device according to claim 6, characterized in that: Bolt holes (9) are provided on the bottom inner side of the mounting frame (1).

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