Injection molding machine and injection molding system

Abstract

The invention discloses an injection molding machine and an injection molding system.When the injection molding machine works, after a jig loaded with a workpiece is placed in an injection molding area, an upper mold and a lower mold can be driven by a driving module to be close to each other so as to be closed, and then under driving of a first driver, a feeding structure can move downwards so that the workpiece can be fed into the injection molding area; the first driver can drive the feeding structure to move upwards to be separated from the injection molding area before injection molding liquid in the injection molding area is not solidified, so that the problem that a water gap in the jig is too long due to the fact that the water gap in the jig is connected with the injection molding structure can be avoided, and injection molding of a workpiece on the jig is completed. And subsequent water gap separation is facilitated.

Description

Technical Field

[0001] This invention relates to the field of injection molding machine technology, and particularly to an injection molding machine and injection molding system. Background Technology

[0002] Injection molding machines, also known as injection molding machines or injection molding machines, are the main molding equipment used to produce various shapes of plastic products from thermoplastic or thermosetting materials using plastic molds. Injection molding machines can be classified into vertical, horizontal, and vertical-horizontal combined types according to the arrangement of the injection unit and the clamping unit.

[0003] In related technologies, injection molding machines have an upper mold and a lower mold. An injection structure is fixedly installed on the upper mold. After the fixture is sent between the upper mold and the lower mold, the upper mold and the lower mold can close and clamp the fixture. Then, the injection structure can allow liquid injection liquid to flow into the fixture through the injection channel for injection molding. Afterward, the operator can remove the fixture.

[0004] However, since the injection molding structure is fixed on the upper mold, the gate formed after the injection liquid in the fixture solidifies will connect with the injection molding structure, thus affecting the detachment of the gate on the subsequent injection molded parts. Summary of the Invention

[0005] The purpose of this invention is to at least solve one of the technical problems existing in the prior art. A first aspect of this invention provides an injection molding machine, in which the removal of the sprue from the molded part is more convenient after injection molding. A second aspect of this invention also provides an injection molding system.

[0006] According to a first aspect of the present invention, an injection molding machine includes a frame, an injection mold, a feeding module, and a drive module. The injection mold is disposed on the frame and includes an upper mold and a lower mold distributed vertically, with an injection area formed between the upper mold and the lower mold. An clearance hole communicating with the injection area is provided in the upper mold. The feeding module includes a first driver and a feeding structure. The feeding structure is used to supply injection liquid. The first driver is driven to the feeding structure and is used to drive the feeding structure to perform lifting and lowering movements so that the feeding structure extends into or out of the injection area through the clearance hole. The drive module is disposed on the frame and is connected to the upper mold and / or the lower mold. The drive module is used to drive the upper mold and the lower mold to move closer to or further away from each other.

[0007] The injection molding machine described in this invention has at least the following beneficial effects: When the injection molding machine of this application is working, after the fixture loaded with the workpiece is placed into the injection molding area, the upper mold and the lower mold can approach each other under the drive of the drive module to close the mold. Then, under the drive of the first driver, the feeding structure can move downward to extend into the injection molding area through the clearance hole, thereby completing the injection molding of the workpiece on the fixture to form an injection molded part. Then, the first driver can drive the feeding structure upward to detach from the injection molding area before the injection liquid in the injection molding area solidifies, thereby avoiding the problem of excessively long gates caused by the connection between the gate on the fixture and the injection molding structure, and thus facilitating the subsequent detachment of the gate.

[0008] According to the first aspect of the injection molding machine, the feeding module further includes a mounting plate, which is disposed on the upper side of the upper mold. The feeding structure is disposed on the mounting plate, and a first driver is disposed on the mounting plate. The output end of the first driver is connected to the upper mold. Under the drive of the first driver, the mounting plate can drive the feeding structure to perform lifting and lowering movements.

[0009] According to the first aspect of the present invention, the injection molding machine includes a feeding module comprising a plurality of first drivers, which are circumferentially spaced around the feeding structure.

[0010] According to the first aspect of the present invention, the injection molding machine further includes a vertically extending guide rod, and a mounting plate is slidably sleeved on the guide rod in the vertical direction, the lower end of the guide rod being connected to the upper mold.

[0011] According to the first aspect of the present invention, the injection molding machine includes a feeding module comprising multiple guide rods, wherein the guide rods and a first driver are arranged alternately around the feeding structure in a circumferential manner.

[0012] According to the first aspect of the present invention, the injection molding machine includes a drive module including a mounting frame and a second driver. The mounting frame is mounted on the frame and located on the upper side of the upper mold. The second driver is mounted on the mounting frame and connected to the upper mold drive. The second driver can drive the upper mold to perform lifting and lowering movements. The lower mold is fixed on the frame. The injection mold has a first clearance area and a second clearance area on opposite sides in the first horizontal direction to allow the fixture to enter and exit the injection area.

[0013] According to the first aspect of the present invention, the injection molding machine has two sets of drive modules, which are spaced apart along a first horizontal direction, and a feeding module is disposed between the two sets of drive modules.

[0014] According to the first aspect of the present invention, the injection molding machine frame includes a first mounting column and a second mounting column, the first mounting column and the second mounting column are respectively disposed at opposite ends of the injection mold in a second horizontal direction, the second horizontal direction is spaced at a certain angle from the first horizontal direction, and the opposite ends of the mounting frame are detachably connected to the first mounting column and the second mounting column respectively.

[0015] According to the first aspect of the present invention, the injection molding machine has a guide post on the upper mold, and the mounting bracket is slidably sleeved on the guide post in the vertical direction.

[0016] The injection molding system provided according to a second aspect of the present invention includes the injection molding machine provided in the first aspect of the present invention; the injection molding system further includes a conveyor line, which is sequentially disposed in a first clearance area, an injection area and a second clearance area, and the conveyor line is used to transport the injection molding fixture.

[0017] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a schematic diagram of the structure of an injection molding machine according to an embodiment of the present invention; Figure 2 for Figure 1 The diagram shows a partial structural diagram of the injection molding machine.

[0019] Figure label: Frame 100; First clearance zone 101; Second clearance zone 102; First mounting post 110; Second mounting post 120; Injection mold 200; Injection area 201; Upper mold 210; Clearance hole 211; Guide post 212; Lower mold 220; Feeding module 300; First driver 310; Feeding structure 320; Mounting plate 330; Guide rod 340; Drive module 400; mounting bracket 410; second driver 420. Detailed Implementation

[0020] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention 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 overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0021] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0022] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0023] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0024] The following is for reference. Figure 1 and Figure 2 The injection molding machine of the first aspect of this application will be described in detail.

[0025] refer to Figure 1 and Figure 2 According to a first aspect of the present invention, an injection molding machine includes a frame 100, an injection mold 200, a feeding module 300, and a drive module 400. The injection mold 200 is disposed on the frame 100 and includes an upper mold 210 and a lower mold 220 distributed vertically. An injection area 201 is formed between the upper mold 210 and the lower mold 220. An clearance hole 211 communicating with the injection area 201 is provided in the upper mold 210. The feeding module 300 includes a first driver 31. The upper mold 210 and the lower mold 220 are provided with a feeding structure 320 for supplying injection molding liquid. The first driver 310 is driven to the feeding structure 320 and is used to drive the feeding structure 320 to move up and down so that the feeding structure 320 extends into or out of the injection area 201 through the clearance hole 211. The drive module 400 is provided on the frame 100 and is connected to the upper mold 210 and / or the lower mold 220. The drive module 400 is used to drive the upper mold 210 and the lower mold 220 to move closer to or further away from each other.

[0026] Furthermore, when the injection molding machine of this application is working, after the fixture loaded with the workpiece is placed into the injection molding zone 201, the upper mold 210 and the lower mold 220 can approach each other under the drive of the drive module 400 to close the mold. Then, under the drive of the first driver 310, the feeding structure 320 can move downward to extend into the injection molding zone 201 through the clearance hole 211, thereby completing the injection molding of the workpiece on the fixture to form an injection molded part. Then, the first driver 310 can drive the feeding structure 320 upward to disengage from the injection molding zone 201 before the injection liquid in the injection molding zone 201 solidifies.

[0027] It should be noted that if the feeding structure 320 is fixed on the upper mold 210, after the feeding structure 320 supplies injection liquid to the fixture in the injection area 201, the injection liquid on the fixture is still connected to the feeding structure 320. As a result, when the upper mold 210 and the lower mold 220 are opened, the injection liquid is in a semi-solid state, and the feeding structure 320 will pull the injection liquid on the fixture, resulting in a longer gate on the fixture, which is not convenient for subsequent removal of the gate.

[0028] It is understood that in this application, by setting the first driver 310, after the upper mold 210 and the lower mold 220 cooperate to close the mold, the first driver 310 can drive the feeding structure 320 to extend into the injection area 201 through the clearance hole 211 to complete the supply of injection liquid to the fixture. Then, before the injection liquid on the fixture solidifies, the first driver 310 can drive the feeding structure 320 to move upward away from the injection area 201 to separate the feeding structure 320 from the injection liquid on the fixture. As a result, after the upper mold 210 and the lower mold 220 are opened, the length of the gate on the fixture can be smaller, so as to facilitate the removal of the gate.

[0029] In some embodiments of the present invention, reference is made to Figure 1 The feeding module 300 also includes a mounting plate 330, which is located on the upper side of the upper mold 210. The feeding structure 320 is located on the mounting plate 330, and the first driver 310 is located on the mounting plate 330. The output end of the first driver 310 is connected to the upper mold 210. Under the drive of the first driver 310, the mounting plate 330 can drive the feeding structure 320 to move up and down.

[0030] It is understandable that, since the first driver 310 is located on the mounting plate 330 and the output end of the first driver 310 is connected to the upper mold 210, the first driver 310 can drive the mounting plate 330 to move up and down under the drive of the first driver 310, thereby causing the feeding module 300 on the mounting plate 330 to move up and down.

[0031] It is understandable that by placing the first driver 310 on the mounting plate 330, it is possible to avoid placing the first driver 310 on the upper mold 210, thereby reducing the structure installed on the upper mold 210.

[0032] Specifically, the first driver 310 is a cylinder, which is mounted on the mounting plate 330, and the extension rod of the cylinder is connected to the upper end of the upper mold 210.

[0033] In some embodiments of the present invention, reference is made to Figure 1 The feeding module 300 includes a plurality of first drivers 310, which are circumferentially spaced around the feeding structure 320.

[0034] It is understandable that by setting multiple first drivers 310, the upper mold 210 can be subjected to more uniform force, and the mounting plate 330 can be subjected to more uniform force, reducing the probability of the mounting plate 330 tilting horizontally during the lifting process, so that the mounting plate 330 can drive the feeding structure 320 to lift stably.

[0035] For details, please refer to Figure 1 The first driver 310 has two.

[0036] It should be noted that the first driver 310 can not only be configured to have two; depending on actual needs, the first driver 310 can also be configured to have three, four, or even more.

[0037] In some embodiments of the present invention, referring to the figures, the feeding module 300 further includes a vertically extending guide rod 340, and the mounting plate 330 is slidably sleeved on the guide rod 340 in the vertical direction. The lower end of the guide rod 340 is connected to the upper mold 210.

[0038] It is understandable that by setting the guide rod 340, the first driver 310 can drive the mounting plate 330 to move up and down accurately along the guide rod 340 under the guidance of the guide rod 340.

[0039] In some embodiments of the present invention, reference is made to Figure 1 and Figure 2 The feeding module 300 includes multiple guide rods 340, and the guide rods 340 and the first driver 310 are arranged alternately around the feeding structure 320.

[0040] Understandably, the arrangement of multiple guide rods 340 allows for higher precision in the vertical movement of the mounting plate 330.

[0041] It is understandable that, since the guide rods 340 and the first driver 310 are arranged alternately around the feeding structure 320, the force on each guide rod 340 is more uniform, thereby improving the vertical movement accuracy of the mounting plate 330.

[0042] For details, please refer to Figure 1 and Figure 2 There are two guide rods 340 and two first drivers 310. The two guide rods 340 and the two first drivers 310 are arranged alternately around the feeding structure 320.

[0043] In some embodiments of the present invention, the drive module 400 includes a mounting frame 410 and a second driver 420. The mounting frame 410 is disposed on the frame 100 and located above the upper mold 210. The second driver 420 is disposed on the mounting frame 410 and is drivenly connected to the upper mold 210. The second driver 420 can drive the upper mold 210 to perform lifting and lowering movements. The lower mold 220 is fixed on the frame 100. The injection mold 200 has a first clearance area 101 and a second clearance area 102 on opposite sides in the first horizontal direction to allow the fixture to enter and exit the injection area 201.

[0044] For example, such as Figure 1 As shown, the first horizontal direction is the left and right direction. The area on the left side of the injection mold 200 is the first clearance area 101, and the area on the right side of the injection mold 200 is the second clearance area 102. The drive module 400 includes a mounting frame 410 and a second driver 420. The mounting frame 410 is disposed on the frame 100 and located directly above the upper mold 210. The second driver 420 is disposed on the mounting frame 410 and is drivenly connected to the upper end of the upper mold 210. The lower mold 220 is fixed on the frame 100.

[0045] It should be noted that in traditional injection molding machine designs, the second driver 420 is typically located on the lower side of the lower mold 220. A vertically extending transmission rod runs through the lower mold 220, and the second driver 420 is connected to the upper mold 210 via this transmission rod, enabling the second driver 420 to smoothly drive the upper mold 210 to move up and down. However, this design results in some transmission rods being obstructed between the first clearance area 101 and the injection area 201, and some transmission rods being obstructed between the second clearance area 102 and the injection area 201. When the injection molding machine is used in an injection molding system, the conveyor line cannot directly pass through the injection area 201. Fixtures on the conveyor line often need to be moved into the injection area 201 via an additional handling mechanism, resulting in poor compatibility between the injection molding machine and the injection molding system.

[0046] It is understood that in this application, by placing the drive module 400 directly above the upper mold 210, the injection molding machine does not need to have an additional transmission rod. The injection area 201 can be directly connected to the first clearance area 101 and the second clearance area 102. After the injection molding machine of this application is applied to the injection molding system, the conveyor line can pass through the first clearance area 101, the injection area 201 and the second clearance area 102 in sequence, so that the conveyor line can directly transport the fixture into the injection area 201. The injection molding system does not need to have an additional handling mechanism. The injection molding machine of this application has higher compatibility with the injection molding system.

[0047] In some embodiments of the present invention, reference is made to Figure 1 The drive module 400 is provided in two sets, which are spaced apart along the first horizontal direction, and the feeding module 300 is located between the two sets of drive modules 400.

[0048] Understandably, by setting up two sets of drive modules 400, it is possible to select a lower power model for each individual drive module 400.

[0049] Understandably, since the feeding module 300 is located between the two drive modules 400, the upper mold 210 is subjected to more uniform force in the horizontal direction. Furthermore, the feeding module 300 can be located in the extra space between the two drive modules 400, making the structure of the entire injection molding machine more compact.

[0050] In some embodiments of the present invention, the frame 100 includes a first mounting post 110 and a second mounting post 120. The first mounting post 110 and the second mounting post 120 are respectively disposed at opposite ends of the injection mold 200 in a second horizontal direction. The second horizontal direction is set at a certain angle from the first horizontal direction. The opposite ends of the mounting frame 410 are detachably connected to the first mounting post 110 and the second mounting post 120 respectively.

[0051] For example, such as Figure 1 and Figure 2 As shown, the frame 100 includes a first mounting post 110 and a second mounting post 120. The first mounting post 110 and the second mounting post 120 are respectively located on the front and rear sides of the injection mold 200. The front and rear ends of the mounting frame 410 are respectively connected to the first mounting post 110 and the second mounting post 120 through threaded connectors.

[0052] It is understandable that, since the first mounting post 110 and the second mounting post 120 are respectively located on the front and rear sides of the injection mold 200, the first mounting post 110 and the second mounting post 120 can cooperate to smoothly support the drive module 400, while avoiding the first mounting post 110 and the second mounting post 120 being located in the first clearance area 101 or the second clearance area 102.

[0053] It should be noted that when there are multiple drive modules 400, there are also multiple sets of first mounting posts 110 and second mounting posts 120.

[0054] In some embodiments of the present invention, reference is made to Figure 1 and Figure 2 The upper mold 210 is provided with guide posts 212, and the mounting bracket 410 is slidably sleeved on the guide posts 212 in the vertical direction.

[0055] Understandably, by setting the guide post 212, the upper mold 210 can accurately move up and down along the guide post 212 under the drive of the drive module 400, thus improving the accuracy of the upper mold 210's up and down movement.

[0056] The injection molding system provided according to a second aspect of the present invention includes the injection molding machine provided in the first aspect of the present invention; the injection molding system further includes a conveyor line, which is sequentially disposed in a first clearance area 101, an injection area 201 and a second clearance area 102, and the conveyor line is used to transport the injection molding fixture.

[0057] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An injection molding machine, characterized in that, include: Frame; An injection mold is provided on the frame. The injection mold includes an upper mold and a lower mold distributed vertically. An injection area is formed between the upper mold and the lower mold. An avoidance hole communicating with the injection area is provided in the upper mold. The feeding module includes a first driver and a feeding structure. The feeding structure is used to supply injection molding liquid. The first driver is driven to the feeding structure and is used to drive the feeding structure to perform lifting and lowering movements so that the feeding structure extends into or out of the injection area through the clearance hole. A drive module is disposed on the frame and connected to the upper mold and / or the lower mold. The drive module is used to drive the upper mold and the lower mold to move closer to or further away from each other.

2. The injection molding machine according to claim 1, characterized in that, The feeding module also includes a mounting plate, which is located on the upper side of the upper mold. The feeding structure is located on the mounting plate, and the first driver is located on the mounting plate. The output end of the first driver is connected to the upper mold. Under the drive of the first driver, the mounting plate can drive the feeding structure to move up and down.

3. The injection molding machine according to claim 2, characterized in that, The feeding module includes a plurality of first drivers, which are arranged circumferentially around the feeding structure.

4. An injection molding machine according to claim 3, characterized in that, The feeding module also includes a vertically extending guide rod, and the mounting plate is slidably sleeved on the guide rod in the vertical direction. The lower end of the guide rod is connected to the upper mold.

5. An injection molding machine according to claim 4, characterized in that, The feeding module includes multiple guide rods, and the guide rods and the first driver are arranged alternately around the feeding structure in a circumferential direction.

6. An injection molding machine according to any one of claims 1 to 5, characterized in that, The drive module includes a mounting frame and a second driver. The mounting frame is mounted on the frame and located above the upper mold. The second driver is mounted on the mounting frame and connected to the upper mold. The second driver can drive the upper mold to move up and down. The lower mold is fixed on the frame. The injection mold has a first clearance area and a second clearance area on opposite sides in the first horizontal direction to allow the fixture to enter and exit the injection area.

7. An injection molding machine according to claim 6, characterized in that, The drive module is provided in two sets, which are spaced apart along the first horizontal direction, and the feeding module is located between the two sets of drive modules.

8. An injection molding machine according to claim 6, characterized in that, The frame includes a first mounting column and a second mounting column, which are respectively located at opposite ends of the injection mold in a second horizontal direction. The second horizontal direction is set at a certain angle to the first horizontal direction. The opposite ends of the mounting frame are detachably connected to the first mounting column and the second mounting column, respectively.

9. An injection molding machine according to claim 6, characterized in that, The upper mold is provided with guide posts, and the mounting bracket is slidably sleeved on the guide posts in the vertical direction.

10. An injection molding system, characterized in that, The system includes an injection molding machine as described in any one of claims 6 to 9; the injection molding system further includes a conveyor line, which is sequentially disposed in the first clearance area, the injection area and the second clearance area, and the conveyor line is used to transport the injection molding fixture.

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