Injection molding machine

Abstract

The present invention provides an injection molding machine, which includes a melt transmission wheel, a support component, a screw, a transmission shaft, a bearing and a clutch; the melt transmission wheel is rotatably arranged around a preset axis; the melt transmission wheel is fixedly connected to the support component to drive the support component to rotate; the support component has an installation space; the axial direction of the screw is parallel or the same as the axial direction of the transmission shaft; the screw is located outside the installation space and is fixedly connected to the support component; a part of the shaft section of the transmission shaft is located in the installation space, and the transmission shaft is rotatably arranged around its central axis and movably arranged along its axial direction; the bearing is arranged between the transmission shaft and the support component; the clutch is located in the installation space, and the clutch is connected to the support component and the transmission shaft, so that the support component and the transmission shaft are connected or disconnected in transmission under the action of the clutch. The injection molding machine of the present application solves the problem of low equipment reliability of the injection molding machine in the prior art due to poor bearing stress conditions.

Description

Technical Field

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

[0002] In the prior art, the clutch functional component that connects or disconnects the power between the melt driven wheel and the injection driven wheel is located between the two wheels, which requires that one of the driven wheels be moved away from the bearing support point, resulting in poor stress conditions on the bearing, thereby reducing the reliability of the equipment. Summary of the invention

[0003] The main purpose of the present invention is to provide an injection molding machine to solve the problem of low equipment reliability caused by poor bearing stress conditions of the injection molding machine in the prior art.

[0004] In order to achieve the above-mentioned purpose, the present invention provides an injection molding machine, which includes: a melt transmission wheel, which is rotatably arranged around a preset axis; a support component, the melt transmission wheel is fixedly connected to the support component to drive the support component to rotate; the support component has an installation space; a screw, the screw is located outside the installation space and is fixedly connected to the support component, so that the support component drives the screw to rotate; a transmission shaft, part of the shaft section of the transmission shaft is located in the installation space, the transmission shaft is rotatably arranged around its central axis and movably arranged along its axial direction; the central axis of the transmission shaft coincides with the preset axis; a bearing, the bearing is arranged between the transmission shaft and the support component; a clutch, the clutch is located in the installation space, the clutch is connected to the support component and connected to the transmission shaft, so that under the action of the clutch, the support component and the transmission shaft are connected or disconnected.

[0005] Furthermore, the injection molding machine also includes: an injection transmission wheel, which is rotatably arranged around a preset axis, and the injection transmission wheel is fixedly sleeved on the transmission shaft; a fixed seat, which is fixedly arranged; the first end of the transmission shaft extends into the installation space, and the second end of the transmission shaft is threadedly connected to the fixed seat, so that when the injection transmission wheel drives the transmission shaft to rotate, the transmission shaft moves along its axial direction relative to the fixed seat.

[0006] Furthermore, the transmission shaft includes a first shaft body and a second shaft body distributed along its axial direction and connected to each other; the first shaft body is located in the installation space, and the bearing is arranged between the first shaft body and the supporting component; the second shaft body is threadedly connected to the fixing seat; the injection driving wheel fixing sleeve is arranged on the second shaft body.

[0007] Furthermore, the second shaft is a screw rod.

[0008] Furthermore, the injection molding machine also includes a expansion sleeve, which is arranged between the injection molding transmission wheel and the second shaft body to relatively fix the injection molding transmission wheel and the second shaft body.

[0009] Furthermore, the clutch is an electromagnetic clutch.

[0010] Furthermore, the transmission shaft has a penetration channel, and both ends of the penetration channel extend to two end surfaces of the transmission shaft respectively; the penetration channel is used for the wiring harness to pass through, and the wiring harness is used for conductive connection with the electromagnetic clutch.

[0011] Furthermore, the injection molding machine also includes: a first rotating conductive slip ring, the first rotating conductive slip ring includes a first stator and a first rotor, the first stator and the first rotor are arranged to rotate relative to each other; the first stator is connected to the first end of the transmission shaft and is connected to the wiring harness in the passage, and the first rotor is connected to the clutch.

[0012] Furthermore, the injection molding machine also includes: a second rotating conductive slip ring, the second rotating conductive slip ring includes a second stator and a second rotor, the second stator and the second rotor are arranged to rotate relative to each other; the second stator is connected to the second end of the transmission shaft and is connected to the wiring harness in the passage, and the second rotor is used to connect to the power input part.

[0013] Furthermore, the supporting component includes a first end cover portion, a supporting member, and a second end cover portion, and the supporting member is a cylindrical structure; along the axial direction of the supporting member, the first end cover portion and the second end cover portion are respectively fixedly connected to the two ends of the supporting member; the first end cover portion, the supporting member, and the second end cover portion jointly form an installation space; the first end cover portion is used to connect to the clutch and to be fixedly connected to the screw; the bearing is arranged between the transmission shaft and the support member; the second end cover portion is used to be fixedly connected to the melt transmission wheel.

[0014] Applying the technical solution of the present invention, the injection molding machine includes a melt transmission wheel, a support component, a screw, a transmission shaft, a bearing and a clutch; the melt transmission wheel is rotatably arranged around a preset axis; the melt transmission wheel is fixedly connected to the support component to drive the support component to rotate; the support component has an installation space; the axial direction of the screw is parallel to or the same as the axial direction of the transmission shaft; the screw is located outside the installation space and is fixedly connected to the support component so that the support component drives the screw to rotate; part of the shaft section of the transmission shaft is located in the installation space, the transmission shaft is rotatably arranged around its central axis and movably arranged along its axial direction; the central axis of the transmission shaft coincides with the preset axis; the bearing is arranged between the transmission shaft and the support component; the clutch is located in the installation space, the clutch is connected to the support component and to the transmission shaft, so that under the action of the clutch, the support component and the transmission shaft are connected or disconnected.

[0015] When the support component and the transmission shaft are disconnected, the support component and the transmission shaft rotate independently of each other; when the support component and the transmission shaft are in transmission connection, the rotational power of the support component can be transmitted to the transmission shaft, and the rotational power of the transmission shaft can also be transmitted to the support component. It should be noted that no matter whether the support component and the transmission shaft are in a transmission connection state or a disconnected state, the transmission shaft drives the support component and the screw to move axially along the transmission shaft through the bearing.

[0016] The bearing of the present application is arranged between the transmission shaft and the supporting component, which can ensure that the stress condition of the bearing is relatively good, thereby ensuring the reliability of the equipment, and solving the problem of low equipment reliability of the injection molding machine in the prior art due to poor bearing stress condition. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 A cross-sectional structural diagram of an injection molding machine according to the present invention is shown;

[0019] Figure 2 Shows Figure 1 An enlarged view of point A of the injection molding machine.

[0020] The above drawings include the following reference numerals:

[0021] 10. Melt-melt transmission wheel; 20. Support component; 21. First end cover; 22. Support member; 23. Second end cover; 30. Screw; 40. Injection-molding transmission wheel; 50. Transmission shaft; 51. First shaft body; 52. Second shaft body; 53. Expansion sleeve; 54. Passageway; 541. First channel section; 542. Second channel section; 55. First rotating conductive slip ring; 56. Second rotating conductive slip ring; 60. Bearing; 70. Clutch; 80. Fixed seat. DETAILED DESCRIPTION

[0022] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0023] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0024] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0025] The present invention provides an injection molding machine, please refer to Figure 1 and Figure 2 The injection molding machine includes a melt transmission wheel 10, a support component 20, a screw 30, a transmission shaft 50, a bearing 60 and a clutch 70; the melt transmission wheel 10 is rotatably arranged around a preset axis; the melt transmission wheel 10 is fixedly connected to the support component 20 to drive the support component 20 to rotate; the support component 20 has an installation space; the axial direction of the screw 30 is parallel to or the same as the axial direction of the transmission shaft 50; the screw 30 is located outside the installation space and is fixedly connected to the support component 20, so that the support component 20 drives the screw 30 to rotate; a part of the shaft section of the transmission shaft 50 is located in the installation space, and the transmission shaft 50 is rotatably arranged around its central axis and movably arranged along its axial direction; the central axis of the transmission shaft 50 coincides with the preset axis; the bearing 60 is arranged between the transmission shaft 50 and the support component 20; the clutch 70 is located in the installation space, and the clutch 70 is connected to the support component 20 and the transmission shaft 50, so that under the action of the clutch 70, the support component 20 and the transmission shaft 50 are connected or disconnected.

[0026] When the support component 20 and the transmission shaft 50 are disconnected, the support component 20 and the transmission shaft 50 rotate independently of each other; when the support component 20 and the transmission shaft 50 are in transmission connection, the rotational power of the support component 20 can be transmitted to the transmission shaft 50, and the rotational power of the transmission shaft 50 can also be transmitted to the support component 20. It should be noted that no matter the support component 20 and the transmission shaft 50 are in a transmission connection state or a disconnected state, the transmission shaft 50 drives the support component 20 and the screw 30 to move along the axial direction of the transmission shaft 50 through the bearing 60.

[0027] The bearing 60 of the present application is arranged between the transmission shaft 50 and the support component 20, which can ensure that the stress condition of the bearing 60 is relatively good, thereby ensuring the reliability of the equipment, and solving the problem of low equipment reliability of the injection molding machine in the prior art due to poor bearing stress condition.

[0028] At the end of the melt injection, in addition to preventing the melt in the cavity from flowing back, the melt injected into the cavity will cool and shrink, so the screw 30 needs to continue to move forward slowly to allow the melt to continue to be injected into the cavity to replenish the melt required for the product to shrink. This process is called pressure holding. Specifically, the pressure holding of the injection molding machine means that after the injection action is completed, the screw 30 needs to continue to maintain a certain pressure on the melt.

[0029] Specifically, when the injection molding machine is performing pressure maintaining, the support component 20 and the transmission shaft 50 are in transmission connection.

[0030] Specifically, the central axis of the melt transmission wheel 10 coincides with the preset axis.

[0031] In this embodiment, the injection molding machine also includes an injection driving wheel 40 and a fixed seat 80. The injection driving wheel 40 is rotatably arranged around a preset axis, and the injection driving wheel 40 is fixedly sleeved on the transmission shaft 50, and the central axis of the injection driving wheel 40 coincides with the preset axis; the fixed seat 80 is fixedly arranged; the first end of the transmission shaft 50 extends into the installation space, and the second end of the transmission shaft 50 is threadedly connected to the fixed seat 80, so that when the injection driving wheel 40 drives the transmission shaft 50 to rotate, the transmission shaft 50 also moves along its axial direction relative to the fixed seat 80.

[0032] Specifically, the fixing seat 80 has a threaded hole for the transmission shaft 50 to pass through, and the transmission shaft 50 passes through the threaded hole of the fixing seat 80 .

[0033] In this embodiment, the transmission shaft 50 includes a first shaft body 51 and a second shaft body 52 distributed along its axial direction and connected to each other. The axial directions of the first shaft body 51 and the second shaft body 52 are both the same as the axial directions of the transmission shaft 50; the first shaft body 51 is located in the installation space, and the bearing 60 is arranged between the first shaft body 51 and the support component 20; the second shaft body 52 is threadedly connected to the fixing seat 80; the injection driving wheel 40 is fixedly sleeved on the second shaft body 52.

[0034] Specifically, the second shaft 52 is inserted into the threaded hole of the fixing seat 80 .

[0035] Specifically, the second shaft 52 is a screw rod.

[0036] Specifically, the injection molding machine further includes a clamping sleeve 53 , which is disposed between the injection driving wheel 40 and the second shaft 52 to relatively fix the injection driving wheel 40 and the second shaft 52 .

[0037] In this embodiment, the clutch 70 is an electromagnetic clutch; the transmission shaft 50 has a through channel 54, the extension direction of the through channel 54 is the same as the axial direction of the transmission shaft 50, and the two ends of the through channel 54 extend to the two end surfaces of the transmission shaft 50 respectively; the through channel 54 is used for the wiring harness to pass through, and the wiring harness is used to be conductively connected to the electromagnetic clutch.

[0038] Specifically, the through channel 54 includes a first channel section 541 and a second channel section 542 which are distributed along its axial direction and connected to each other. The first channel section 541 and the second channel section 542 are respectively arranged on the first shaft body 51 and the second shaft body 52; the extension direction of the first channel section 541 and the extension direction of the second channel section 542 are both the same as the axial direction of the transmission shaft 50; the two ends of the first channel section 541 respectively extend to the two end surfaces of the first shaft body 51, and the two ends of the second channel section 542 respectively extend to the two end surfaces of the second shaft body 52.

[0039] In this embodiment, the injection molding machine also includes a first rotating conductive slip ring 55, which includes a first stator and a first rotor, and the first stator and the first rotor are arranged to rotate relative to each other; the first stator is connected to the first end of the transmission shaft 50 and is connected to the wiring harness in the passage 54, and the first rotor is connected to the clutch 70, so that the clutch 70 is conductively connected to the wiring harness in the passage 54.

[0040] It should be noted that the first rotating conductive slip ring 55 only serves as a conductive component between the clutch 70 and the wiring harness passing through the channel 54 , and does not transmit axial force and rotational force between the clutch 70 and the transmission shaft 50 .

[0041] Specifically, the clutch 70 and the transmission shaft 50 are directly connected.

[0042] Specifically, the first rotor is connected to the clutch 70 and to a control line of the clutch 70 .

[0043] In this embodiment, the injection molding machine also includes a second rotating conductive slip ring 56, which includes a second stator and a second rotor, and the second stator and the second rotor are rotatably arranged relative to each other; the second stator is connected to the second end of the transmission shaft 50 and is connected to the wiring harness in the passage 54, and the second rotor is used to connect to the power input part.

[0044] Specifically, the second rotor is connected to the power input part and to a power line of the power input part.

[0045] In this embodiment, the support component 20 includes a first end cover 21, a support member 22, and a second end cover 23. The support member 22 is a cylindrical structure. Along the axial direction of the support member 22, the first end cover 21 and the second end cover 23 are respectively fixedly connected to the two ends of the support member 22. The first end cover 21, the support member 22, and the second end cover 23 together enclose an installation space. The first end cover 21 is used to connect with the clutch 70 and to be fixedly connected with the screw 30. The bearing 60 is arranged between the transmission shaft 50 and the support member 22. The second end cover 23 is used to be fixedly connected with the melt transmission wheel 10. Among them, the axial direction of the support member 22 is the same as or parallel to the axial direction of the transmission shaft 50.

[0046] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0047] In the injection molding machine provided by the present invention, the injection molding machine includes a melt transmission wheel 10, a support component 20, a screw 30, a transmission shaft 50, a bearing 60 and a clutch 70; the melt transmission wheel 10 is rotatably arranged around a preset axis; the melt transmission wheel 10 is fixedly connected to the support component 20 to drive the support component 20 to rotate; the support component 20 has an installation space; the axial direction of the screw 30 is parallel to or the same as the axial direction of the transmission shaft 50; the screw 30 is located outside the installation space and is fixedly connected to the support component 20, so that the support component 20 drives the screw 30 to rotate; a part of the shaft section of the transmission shaft 50 is located in the installation space, and the transmission shaft 50 is rotatably arranged around its central axis and movably arranged along its axial direction; the central axis of the transmission shaft 50 coincides with the preset axis; the bearing 60 is arranged between the transmission shaft 50 and the support component 20; the clutch 70 is located in the installation space, and the clutch 70 is connected to the support component 20 and the transmission shaft 50, so that under the action of the clutch 70, the support component 20 and the transmission shaft 50 are connected or disconnected.

[0048] When the support component 20 and the transmission shaft 50 are disconnected, the support component 20 and the transmission shaft 50 rotate independently of each other; when the support component 20 and the transmission shaft 50 are in transmission connection, the rotational power of the support component 20 can be transmitted to the transmission shaft 50, and the rotational power of the transmission shaft 50 can also be transmitted to the support component 20. It should be noted that no matter the support component 20 and the transmission shaft 50 are in a transmission connection state or a disconnected state, the transmission shaft 50 drives the support component 20 and the screw 30 to move along the axial direction of the transmission shaft 50 through the bearing 60.

[0049] The bearing 60 of the present application is arranged between the transmission shaft 50 and the support component 20, which can ensure that the stress condition of the bearing 60 is relatively good, thereby ensuring the reliability of the equipment, and solving the problem of low equipment reliability of the injection molding machine in the prior art due to poor bearing stress condition.

[0050] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0051] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An injection molding machine, It is characterized in that include: A melt-adhesive transmission wheel (10), wherein the melt-adhesive transmission wheel (10) is rotatably arranged around a preset axis; A supporting component (20), the melt transmission wheel (10) is fixedly connected to the supporting component (20) to drive the supporting component (20) to rotate; the supporting component (20) has an installation space; a screw rod (30), the screw rod (30) being located outside the installation space and being fixedly connected to the support component (20), so that the support component (20) drives the screw rod (30) to rotate; A transmission shaft (50), a partial shaft section of the transmission shaft (50) is located in the installation space, the transmission shaft (50) is rotatably arranged around its central axis and movably arranged along its axial direction; the central axis of the transmission shaft (50) coincides with the preset axis; a bearing (60), wherein the bearing (60) is disposed between the transmission shaft (50) and the support component (20); A clutch (70), the clutch (70) being located in the installation space, the clutch (70) being connected to the support component (20) and to the transmission shaft (50), so that under the action of the clutch (70), the support component (20) and the transmission shaft (50) are connected or disconnected in transmission.

2. The injection molding machine according to claim 1, It is characterized in that The injection molding machine also includes: An injection driving wheel (40), the injection driving wheel (40) being rotatably arranged around the preset axis, and the injection driving wheel (40) being fixedly sleeved on the driving shaft (50); A fixing seat (80) is fixedly arranged; the first end of the transmission shaft (50) extends into the installation space, and the second end of the transmission shaft (50) is threadedly connected to the fixing seat (80), so that when the injection driving wheel (40) drives the transmission shaft (50) to rotate, the transmission shaft (50) moves relative to the fixing seat (80) along its axial direction.

3. The injection molding machine according to claim 2, It is characterized in that The transmission shaft (50) comprises a first shaft body (51) and a second shaft body (52) which are distributed along the axial direction and connected to each other; the first shaft body (51) is located in the installation space, and the bearing (60) is arranged between the first shaft body (51) and the supporting component (20); the second shaft body (52) is threadedly connected to the fixing seat (80); and the injection driving wheel (40) is fixedly sleeved on the second shaft body (52).

4. The injection molding machine according to claim 3, It is characterized in that The second shaft (52) is a screw rod.

5. The injection molding machine according to claim 3, It is characterized in that The injection molding machine further comprises a clamping sleeve (53), wherein the clamping sleeve (53) is arranged between the injection driving wheel (40) and the second shaft body (52) so as to relatively fix the injection driving wheel (40) and the second shaft body (52).

6. The injection molding machine according to claim 1, It is characterized in that The clutch (70) is an electromagnetic clutch.

7. The injection molding machine according to claim 6, It is characterized in that The transmission shaft (50) has a penetration channel (54), and two ends of the penetration channel (54) respectively extend to two end surfaces of the transmission shaft (50); the penetration channel (54) is used for passing a wire harness, and the wire harness is used for conductive connection with the electromagnetic clutch.

8. The injection molding machine according to claim 7, It is characterized in that The injection molding machine also includes: A first rotating conductive slip ring (55), the first rotating conductive slip ring (55) comprising a first stator and a first rotor, the first stator and the first rotor being arranged to be rotatable relative to each other; the first stator being connected to a first end of the transmission shaft (50) and to a wiring harness in the penetration channel (54), and the first rotor being connected to the clutch (70).

9. The injection molding machine according to claim 7, It is characterized in that The injection molding machine also includes: A second rotating conductive slip ring (56), the second rotating conductive slip ring (56) comprises a second stator and a second rotor, the second stator and the second rotor are arranged to be rotatable relative to each other; the second stator is connected to the second end of the transmission shaft (50) and is connected to the wiring harness in the penetration channel (54), and the second rotor is used to be connected to a power input part.

10. The injection molding machine according to claim 1, It is characterized in that The support component (20) comprises a first end cover portion (21), a support member (22), and a second end cover portion (23); the support member (22) is a cylindrical structure; along the axial direction of the support member (22), the first end cover portion (21) and the second end cover portion (23) are respectively fixedly connected to two ends of the support member (22); the first end cover portion (21), the support member (22), and the second end cover portion (23) together enclose an installation space; The first end cover portion (21) is used to be connected to the clutch (70) and to be fixedly connected to the screw rod (30); the bearing (60) is arranged between the transmission shaft (50) and the support member (22); and the second end cover portion (23) is used to be fixedly connected to the melt transmission wheel (10).

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