Door driving device and injection molding machine

Abstract

According to the door driving device and the injection molding machine, the enclosure space is formed in the fixing piece through the structural shape of the fixing piece, so that the containing part on the transmission piece moves in the enclosure space to prevent external personnel from touching moving parts of a main body, and the door driving device is convenient to use. Only the extending part on the transmission piece extends out of the enclosure space and drives the door to move, and the risk of hurting people is reduced. In addition, the design that the enclosure space is formed by the fixing piece to partially wrap the transmission piece is also beneficial to improving the integrity and modularization of the door driving device, and an operator can conveniently break away from the injection molding machine, pre-assemble and pre-debug the independent door driving device and then assemble the door driving device with the injection molding machine after debugging is completed.

Description

Technical Field

[0001] The invention relates to the technical field of mold processing, in particular to a door driving device and an injection molding machine. Background Art

[0002] In recent years, injection molding machines have adopted more automated control systems, realized human-machine interactive management, improved the production efficiency of injection molding machines, made them more convenient in operation and maintenance, and improved the safety of operators. In addition, the work of injection molding machines is carried out after the protective door is closed, reducing accidents such as mold collision, high temperature burns and inhalation of toxic mist during production. However, the frequent opening and closing of the protective door before and after production can easily cause harm to personnel.

[0003] In the related technology, among the various driving schemes of automatic doors of injection molding machines, for example, pneumatically driven doors use compressed gas, which has fast speed and poor stability, and is easy to cause harm to operators near the door. For another example, although the electric driven door responds quickly and moves smoothly, it has many parts and a complex structure. The installation location is under the safety pedal of the injection molding machine, which is mostly small and cramped, making the installation and debugging process very difficult. In addition, the synchronous belt and synchronous pulley are exposed to the outside, which poses a risk of pinching hands.

[0004] Therefore, it is necessary to develop a novel door drive device and injection molding machine to improve the above-mentioned partial problems existing in the related art. Summary of the invention

[0005] The object of the present invention is to provide a door drive device and an injection molding machine, which can facilitate the disassembly, assembly and maintenance of the door drive device of the injection molding machine and reduce the risk of injury when driving the door to open and close.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] The door driving device provided by the present invention includes: a driving assembly, a transmission assembly and a power assembly; the driving assembly is connected to the door of the injection molding machine to drive the opening and closing of the door; the transmission assembly includes a fixing part and a transmission part, the transmission part is movably arranged on the fixing part to drive the driving assembly to move; the power assembly is connected to the transmission part to provide power to the transmission part; wherein the structure of the fixing part forms an enclosure space, the transmission part includes a protruding part and a receiving part connected to each other, the receiving part moves in the enclosure space, and the protruding part extends outside the enclosure space and is connected to the driving assembly.

[0008] Compared with the prior art, the door drive device provided by the present invention forms an enclosure space inside the fixing member through the structural shape of the fixing member, so that the receiving part on the transmission member moves within the enclosure space to prevent outsiders from touching the moving parts of the main body. Only the protruding part on the transmission member protrudes out of the enclosure space and drives the door to move, which is conducive to reducing the risk of injury. In addition, the design of the fixing member forming the enclosure space to partially cover the transmission member is also conducive to improving the integrity and modularity of the door drive device, making it easier for operators to detach from the injection molding machine, pre-assemble and pre-debug the independent door drive device, and then assemble it with the injection molding machine after debugging.

[0009] Optionally, the fixing member is a hollow column, the interior of the hollow column forms the enclosing space, the extension direction of the hollow column is the same as the moving direction of the door, and the columnar fixing member can increase the length of the enclosing space to facilitate the linear motion of the transmission member to drive the door to open and close.

[0010] Optionally, a strip opening is provided on one side surface of the fixing member, the extension direction of the strip opening is the same as the extension direction of the fixing member, and the protruding portion extends from the strip opening to the outside of the enclosure. The protruding portion on the transmission member needs to make a linear motion to drive the door to open and close. The strip opening is provided on the fixing member, which can not only facilitate the protruding portion to make a linear motion along the opening, but also improve the sealing of the enclosure as much as possible, and reduce the contact between external personnel or objects and the moving parts inside the enclosure.

[0011] Optionally, the transmission assembly further includes an active member and a driven member, the active member is a belt transmission mechanism arranged along the length direction of the fixed member, and two surfaces of the driven member facing each other are respectively connected to the belt of the belt transmission mechanism and the receiving portion. The belt transmission mechanism can realize the linear movement of parts over a long distance, which is convenient for driving the door to open and close in translation. The belt and the receiving portion are respectively arranged on two opposite sides of the driven member, which can reduce the protrusion of the structure in the direction perpendicular to the door, making the structure more compact.

[0012] Optionally, the driving assembly includes a guide rail, a roller and a driving member, the guide rail is arranged between the door and the fixing member, the roller is movably arranged in the guide rail, and the driving member connects the door and the roller.

[0013] Optionally, the driving member includes a first connecting portion and a second connecting portion, wherein the first connecting portion is connected to the door, wherein the first connecting portion is parallel to the door, the first connecting portion and the second connecting portion are arranged perpendicularly, and the second connecting portion is connected to the protruding portion. The first connecting portion is connected to the door in a manner parallel to the door, and can abut against the door with a large area, exerting a force on the door directed to the inside of the injection molding machine to prevent the door from tipping over.

[0014] Optionally, the transmission member further includes a traction part, the traction part is perpendicular to the protruding part, one end of the traction part is connected to the surface of the protruding part facing away from the second connection part, and the other end is connected to a drag chain, which is used to drive the drag chain and move the pipelines in the drag chain. The pipelines required for power supply and control are installed in the drag chain in advance and then fixed in the manner of installing the drag chain, so as to meet the modular installation requirements.

[0015] Optionally, the power assembly includes a drive motor, which is disposed on a side surface of the fixing member where the strip-shaped opening is provided, and a motor shaft of the drive motor extends into the enclosed space and is connected to the belt transmission mechanism.

[0016] Optionally, the door drive device also includes a mounting member, which is arranged on the side of the fixing member opposite to the surface where the strip opening is located. The mounting member is plate-shaped, and the end of the mounting member extends out of the edge of the fixing member. The end is provided with a hole for connection.

[0017] The present invention also provides an injection molding machine, the injection molding machine comprising: a door, a foot support and the above-mentioned door driving device; the foot support is located at the bottom of the injection molding machine, and is used to support the injection molding machine; the door driving device is arranged on the foot support and connected to the door, and is used to drive the door to open and close from below the door. By driving the door to move horizontally through the above-mentioned door driving device, the door driving device of the injection molding machine can be easily disassembled, assembled and maintained, and the risk of injury to people can be reduced when driving the door to open and close. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a partial structural schematic diagram of an injection molding machine in an embodiment of the present invention;

[0019] Figure 2 It is a three-dimensional assembly diagram of the door driving device in the embodiment of the present invention;

[0020] Figure 3 for Figure 1 An enlarged view of point A is shown;

[0021] Figure 4 for Figure 2 The enlarged view of J is shown;

[0022] Figure 5 for Figure 3 The assembly drawing of the driving member and the transmission member shown;

[0023] Figure 6 for Figure 2 Assembly drawing of fixings and mounting parts shown.

[0024] Reference numerals:

[0025] 1. Driving assembly; 101. Guide rail; 102. Driving member; 1021. First connecting part; 1022. Second connecting part; 2. Transmission assembly; 201. Fixing member; 2011. Strip opening; 202. Transmission member; 2021. Accommodating part; 2022. Protruding part; 2023. Traction part; 203. Active member; 2031. Belt; 2032. Pulley; 204. Follower; 3. Driving motor; 4. Door; 5. Foot support; 6. Shielding cover; 7. Drag chain; 8. Mounting member; 801. Hole; 9. Roller. DETAILED DESCRIPTION

[0026] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0027] The embodiment of the present invention provides a door driving device, referring to Figure 1 , Figure 2 and Figure 4 The door driving device includes: a driving component 1, a transmission component 2 and a power component; the driving component 1 is connected to the door 4 of the injection molding machine, and is used to drive the opening and closing of the door 4; the transmission component 2 includes a fixing member 201 and a transmission member 202, and the transmission member 202 is movably arranged on the fixing member 201, and is used to drive the driving component 1 to move; the power component is connected to the transmission member 202, and is used to provide power to the transmission member 202; wherein the structure of the fixing member 201 forms an enclosure space, and the transmission member 202 includes a protruding portion 2022 and a receiving portion 2021 that are connected to each other, and the receiving portion 2021 moves in the enclosure space, and the protruding portion 2022 extends outside the enclosure space and is connected to the driving component 1.

[0028] In some embodiments of the present invention, referring to Figure 1 The door driving device is applied to an injection molding machine, which includes a foot support 5 located at the bottom and in contact with the ground, the shielding cover 6 is arranged on the foot support 5, the door 4 is located above the foot support 5 and is arranged in the hollow area on the shielding cover 6, the door 4 is a sliding door 4, and the moving direction of the door 4 is the H direction shown in the figure or the opposite direction thereof.

[0029] In some embodiments of the present invention, referring to Figure 1 The shape of the foot support 5 can be a hollow rectangle formed by combining four columnar parts. On one side of the injection molding machine, at least two foot supports 5 are arranged in parallel to support the parts of the injection molding machine.

[0030] In some specific embodiments, referring to Figure 1 and Figure 3 The transmission assembly 2 includes the fixing member 201 , and the two ends of the fixing member 201 are respectively installed in the inner hollow parts of the two foot supports 5 .

[0031] In some embodiments of the present invention, referring to Figure 2 and Figure 3 The fixing member 201 is a hollow column, the interior of the hollow column forms the enclosed space, and the extending direction of the hollow column is the same as the moving direction of the door 4.

[0032] In some specific embodiments, referring to Figure 2 and Figure 3 The cross-sectional shape of the hollow column is rectangular, and a rectangular enclosed space is formed inside the hollow column. The extension direction of the hollow column is the same as the moving direction of the door 4, that is, the direction H shown in the figure or its opposite direction. The receiving portion 2021 makes a linear motion inside the hollow column along the direction H shown in the figure or its opposite direction.

[0033] In some embodiments of the present invention, referring to Figure 2 and Figure 5 A strip-shaped opening 2011 is provided on one side surface of the fixing member 201, and the extending direction of the strip-shaped opening 2011 is the same as the extending direction of the fixing member 201, and the protruding portion 2022 extends from the strip-shaped opening 2011 to the outside of the enclosed space.

[0034] In some specific embodiments, referring to Figure 4 and Figure 5 The cross-sectional shape of the fixing member 201 is rectangular, and the fixing member 201 is arranged below the door 4. The strip opening 2011 is arranged on the side surface of the fixing member 201 parallel to the door 4, and the extension direction of the strip opening 2011 is the H direction shown in the figure or the opposite direction. The part of the transmission member 202 that moves inside the fixing member 201, that is, within the enclosed space is the accommodating portion 2021, and the part of the transmission member 202 that extends from the strip opening 2011 is the protruding portion 2022, and the protruding portion 2022 makes a linear motion in the extension direction of the strip opening 2011.

[0035] In some specific embodiments, referring to Figure 3 and Figure 4The receiving portion 2021 and the protruding portion 2022 are both plate-shaped parts, and the receiving portion 2021 and the protruding portion 2022 are both perpendicular to the surface of the fixing member 201 parallel to the door 4.

[0036] In some embodiments of the present invention, referring to Figure 2 and Figure 4 The transmission assembly 2 also includes an active member 203 and a driven member 204. The active member 203 is a belt 2031 transmission mechanism arranged along the length direction of the fixed member 201. The two opposite surfaces on the driven member 204 are respectively connected to the belt 2031 of the belt 2031 transmission mechanism and the accommodating portion 2021.

[0037] In some specific embodiments, referring to Figure 2 and Figure 4 The active member 203 can be a belt 2031 transmission mechanism, and the belt 2031 transmission mechanism includes a belt 2031 and a belt 2031 wheel. The axis of the belt 2031 wheel is set at the two end areas inside the fixed member 201 to maximize the travel of the belt 2031 transmission. The driven member 204 is a plate-shaped part, and one side surface of the driven member 204 is connected to the surface of the belt 2031. During the rotation of the belt 2031 around the wheel, the driven member 204 performs a linear motion; the driven member 204, the receiving portion 2021 and the protruding portion 2022 are fixedly connected in sequence, so that the protruding portion 2022 performs a linear motion with the driven member 204.

[0038] In some specific embodiments, the follower 204 and the receiving portion 2021 are connected via threads.

[0039] In some specific embodiments, the receiving portion 2021 and the protruding portion 2022 may be connected by fasteners or may be integrally formed, and the present invention is not limited thereto.

[0040] In some embodiments of the present invention, referring to Figure 3 and Figure 5 The driving assembly 1 includes a guide rail 101, a roller 9 and a driving member 102. The guide rail 101 is arranged between the door 4 and the fixing member 201. The roller 9 is movably arranged in the guide rail 101. The driving member 102 connects the door 4 and the roller 9.

[0041] In some embodiments of the present invention, referring to Figure 5The driving member 102 includes a first connecting portion 1021 and a second connecting portion 1022, wherein the first connecting portion 1021 is connected to the door 4, wherein the first connecting portion 1021 is parallel to the door 4, the first connecting portion 1021 and the second connecting portion 1022 are vertically arranged, and the second connecting portion 1022 is connected to the protruding portion 2022.

[0042] In some specific embodiments, referring to Figure 3 and Figure 5 The first connecting part 1021 and the second connecting part 1022 are both plate-like parts, and the first connecting part 1021 and the second connecting part 1022 are "L"-shaped. The second connecting part 1022 and the surface of the protruding part 2022 abut against each other and are fixedly connected. A guide rail 101 is arranged at the gap between the driving member 102, the door 4 and the fixing member 201, and the roller 9 is connected to the driving member 102. When the protruding part 2022 makes a linear motion, it drives the driving member 102 to make a linear motion, and the roller 9 rolls linearly in the guide rail 101 to realize the translation of the door 4 along the H direction shown in the figure or in the opposite direction.

[0043] In some embodiments of the present invention, referring to Figure 4 and Figure 5 The transmission member 202 also includes a traction portion 2023, which is perpendicular to the protruding portion 2022. One end of the traction portion 2023 is connected to the surface of the protruding portion 2022 facing away from the second connecting portion 1022, and the other end is connected to the drag chain 7 for driving the drag chain 7 to move the pipeline in the drag chain 7.

[0044] In some specific embodiments, referring to Figure 4 and Figure 5 The traction part 2023 is perpendicular to the protruding part 2022 and the receiving part 2021. The extending direction of the traction part 2023 is the direction away from the door 4. One end of the traction part 2023 is connected to the protruding part 2022, and the other end is connected to the lower drag chain 7 for driving the drag chain 7 and moving the pipeline in the drag chain 7.

[0045] In some embodiments of the present invention, referring to Figure 1 and Figure 2 The power assembly includes a driving motor 3, and the driving motor 3 is arranged on a side surface of the fixing member 201 having the strip opening 2011. The motor shaft of the driving motor 3 extends into the enclosed space and is connected to the belt 2031 transmission mechanism.

[0046] In some embodiments of the present invention, referring to Figure 3 and Figure 6The door drive device also includes a mounting member 8, which is arranged on the side of the fixing member 201 opposite to the surface where the strip opening 2011 is located. The mounting member 8 is a plate-shaped part, and the end of the mounting member 8 extends out of the edge of the top of the fixing member 201 shown in the figure, and the end is provided with a hole 801 for connection.

[0047] In some specific embodiments, referring to Figure 6 The hole 801 may be a semi-waist hole.

[0048] The preferred specific embodiments of the present invention are described in detail above. It should be understood that a person skilled in the art can make many modifications and changes based on the concept of the present invention without creative work. Therefore, any technical solution that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. A door drive device for an injection molding machine, characterized in that: include: A driving assembly (1) connected to a door (4) of the injection molding machine and used for driving the door (4) to open and close; A transmission component (2) comprises a fixing member (201) and a transmission member (202), wherein the transmission member (202) is movably arranged on the fixing member (201) and is used to drive (2031) the driving component (1) to move; A power assembly connected to the transmission member (202) and used to provide power to the transmission member (202); The structure of the fixing member (201) forms an enclosure space, the transmission member (202) comprises a protruding portion (2022) and a receiving portion (2021) which are connected to each other, the receiving portion (2021) moves within the enclosure space, and the protruding portion (2022) extends outside the enclosure space and is connected to the driving assembly (1).

2. The door drive device according to claim 1, characterized in that: The fixing member (201) is a hollow column, the interior of the hollow column forms the enclosed space, and the extension direction of the hollow column is the same as the movement direction of the door (4).

3. The door drive device according to claim 2, characterized in that: A strip-shaped opening (2011) is provided on one side surface of the fixing member (201), the extension direction of the strip-shaped opening (2011) is the same as the extension direction of the fixing member (201), and the protruding portion (2022) extends from the strip-shaped opening (2011) to the outside of the enclosed space.

4. The door drive device according to claim 2, characterized in that: The transmission assembly (2) further comprises an active member (203) and a driven member (204); the active member (203) is a belt (2031) transmission mechanism arranged along the length direction of the fixed member (201); and two surfaces of the driven member (204) facing away from each other are respectively connected to the belt (2031) of the belt (2031) transmission mechanism and the accommodating portion (2021).

5. The door drive device according to claim 1, characterized in that: The driving assembly (1) comprises a guide rail (101), a roller (9) and a driving member (102); the guide rail (101) is arranged between the door (4) and the fixing member (201); the roller (9) is movably arranged in the guide rail (101); and the driving member (102) connects the door (4) and the roller (9).

6. The door drive device according to claim 5, characterized in that: The driving member (102) comprises a first connecting portion (1021) and a second connecting portion (1022), wherein the first connecting portion (1021) is connected to the door (4), wherein the first connecting portion (1021) is parallel to the door (4), the first connecting portion (1021) and the second connecting portion (1022) are arranged vertically, and the second connecting portion (1022) is connected to the protruding portion (2022).

7. The door drive device according to claim 6, characterized in that: The transmission member (202) further comprises a traction portion (2023), wherein the traction portion (2023) is perpendicular to the protruding portion (2022), one end of the traction portion (2023) is connected to a surface of the protruding portion (2022) facing away from the second connecting portion (1022), and the other end is connected to the drag chain (7) for driving (2031) the drag chain (7) to move the pipeline in the drag chain (7).

8. The door driving device according to claim 3, characterized in that: The power assembly comprises a drive motor (3), the drive motor (3) being arranged on a side surface of the fixing member (201) on which the strip-shaped opening (2011) is provided, the motor shaft of the drive motor (3) extending into the enclosed space and being connected to the belt (2031) transmission mechanism.

9. The door driving device according to claim 3, characterized in that: It also comprises a mounting member (8) which is arranged on the side of the fixing member (201) opposite to the surface where the strip-shaped opening (2011) is located, the mounting member (8) is plate-shaped, the end of the mounting member (8) extends beyond the edge of the fixing member (201), and the end is provided with a hole (801) for connection.

10. An injection molding machine, characterized in that: include: A door (4), a foot support (5) and a door driving device as described in any one of claims 1 to 9; the foot support (5) is located at the bottom of the injection molding machine and is used to support the injection molding machine; the door driving device is arranged on the foot support (5) and is connected to the door (4) and is used to drive (2031) the door (4) from the bottom of the door (4) to open and close.

Images