Robot part injection mold

Abstract

The application provides a robot part injection mold, and relates to the field of injection molds.The robot part injection mold comprises an upper mold and a lower mold, the bottom of the upper mold is provided with a mold cavity, the top of the lower mold is provided with a mold core, the mold core is provided with an ejection mechanism, the ejection mechanism comprises a middle top plate and at least two edge top plates, the middle top plate is movably arranged at the center of the top of the mold core and is perpendicular to the top surface of the mold core, the middle top plate is connected with a driving piece through a first top rod, the two edge top plates are movably arranged at the edges of the top of the mold core and are perpendicular to the tangent plane of the arc-shaped edges of the mold core, the two edge top plates are slidably arranged in an adjusting support through a second top rod, the adjusting support is mounted on the mold core, a connecting rod assembly is connected between the first top rod and the second top rod, the driving piece can drive the first top rod to move upward, and the connecting rod assembly is used for synchronously driving the corresponding edge top plate to move obliquely upward.

Description

Technical Field

[0001] This utility model relates to the field of injection molds, and in particular to an injection mold for robot parts. Background Technology

[0002] Data shows that with the intelligent development of robots, more than 40 service robots of 7 types have entered experimental and semi-commercial applications. Service robots have a wide range of applications, mainly engaged in maintenance, repair, transportation, cleaning, security, rescue, and monitoring.

[0003] Most service robot shells are produced quickly using injection molding. However, because these shells are often thin and typically have curved edges, such as those of robotic vacuum cleaners, existing molds can easily cause unstable stress on the center and edges of the product during demolding. This can damage the product, causing it to deform upon ejection and resulting in a lower yield rate. Utility Model Content

[0004] In view of the above problems, the present invention provides an injection mold for robot parts that overcomes or at least partially solves the above problems.

[0005] A robot component injection mold includes an upper mold and a lower mold. The upper mold is disposed above the lower mold and has a cavity at its bottom. The lower mold has a core adapted to the cavity at its top and an ejection mechanism is disposed within the core.

[0006] The ejection mechanism includes a central top plate and at least two edge top plates. The central top plate is movably disposed at the top center of the mold core and perpendicular to the top surface of the mold core, and is connected to a driving component passing through the lower mold via a first ejector rod. The two edge top plates are movably disposed at the top edge of the mold core and perpendicular to the tangent of the arc-shaped edge of the mold core, and are slidably disposed on an adjusting bracket via a second ejector rod. The adjusting bracket is mounted on the mold core.

[0007] A connecting rod assembly connects the first push rod and the second push rod; the driving component can drive the first push rod to move upward, and synchronously drive the corresponding edge top plate to move obliquely upward through the connecting rod assembly.

[0008] Preferably, the upper mold includes an upper template, and the mold cavity is disposed in a first groove opened at the bottom of the upper template;

[0009] The lower mold includes a lower template, and the mold core is disposed in a second groove opened on the top of the lower template;

[0010] The lower template has positioning posts at the top four corners and positioning grooves at the bottom four corners, with the positioning grooves matching the positioning posts.

[0011] Preferably, the mold core is formed by connecting the upper part and the lower part of the mold core, and the connection forms a cavity for installing the ejection mechanism.

[0012] Preferably, the adjusting bracket includes a sliding plate and a support rod, the sliding plate is inclined and has a sliding hole along its axial direction, and one end of the sliding plate is hinged to the bottom of the cavity;

[0013] The end of the second push rod away from the edge plate is slidably disposed in the sliding hole via a connecting rod;

[0014] The support rod is disposed on one side of the slide plate, and one end of the support rod is hinged to the side wall of the slide plate, while the other end of the support rod is detachably connected to the bottom of the cavity.

[0015] Preferably, the linkage assembly includes a first link, a second link, and a third link.

[0016] One end of the first connecting rod is hinged to the side wall of the first top rod, and the other end of the first connecting rod is hinged to one end of the second connecting rod; and the first connecting rod and the second connecting rod form an acute angle;

[0017] The second connecting rod is V-shaped, and its corner is hinged to the support frame; the support frame is installed at the bottom of the cavity;

[0018] One end of the third link is hinged to the other end of the second link, and the other end of the third link is hinged to the connecting rod.

[0019] Preferably, the driving component includes a hydraulic cylinder.

[0020] The hydraulic cylinder is inserted into the lower mold and connected to the bottom end of the first push rod through a limiting plate;

[0021] A compression spring is sleeved on the outside of the first push rod, and the compression spring abuts between the limiting plate and the bottom of the cavity.

[0022] Preferably, the bottom of the lower mold is further provided with a base, and the hydraulic cylinder is mounted on the base.

[0023] Preferably, the lower mold is further provided with a cooling mechanism, which includes cooling pipes and a fan.

[0024] The inlet and outlet of the cooling pipe are located on one side of the lower template, and the cooling pipe is arranged in a ring inside the lower part of the mold core;

[0025] The bottom of the cavity has multiple fan slots communicating with the cavity, and the fan is installed in the fan slot; and the cooling pipe passes through the fan slot.

[0026] Preferably, a sealing ring is provided on the top edge of the mold core, and a sealing groove is provided on the bottom edge of the mold cavity, wherein the sealing ring can be embedded in the sealing groove to achieve a sealing fit.

[0027] This application specifically includes the following advantages:

[0028] In the embodiments of this application, an upper mold and a lower mold are used. The upper mold is positioned above the lower mold and has a cavity at its bottom. The lower mold has a core adapted to the cavity at its top and an ejection mechanism is provided inside the core. The ejection mechanism includes a central top plate and at least two edge top plates. The central top plate is movably disposed at the center of the top of the core and perpendicular to the top surface of the core. The central top plate is connected to a driving component passing through the lower mold via a first ejector rod. The two edge top plates are movably disposed at the top edge of the core and perpendicular to the tangent of the curved edge of the core. The two edge top plates are slidably disposed on an adjusting bracket via a second ejector rod. The adjusting bracket is installed on the core. A connecting rod assembly connects the first ejector rod and the second ejector rod. The driving component can drive the first ejector rod to move upward and simultaneously drive the corresponding edge top plate to move obliquely upward via the connecting rod assembly. By setting a central top plate and edge top plates, the central top plate is directly driven to move up and down by a drive component, realizing the ejection and resetting of the middle part of the product. The edge top plates are inclined and perpendicular to the tangent of the curved edge, which can eject the curved edge of the product vertically, ensuring stability during ejection and avoiding edge warping, deformation, etc. The edge top plates are synchronously driven by the linkage assembly, so that the central top plate and the edge top plates move synchronously, ejecting the middle and edge of the product simultaneously, ensuring the stability of product ejection. At the same time, due to the friction loss of the linkage assembly, the edge top plates are subjected to less force than the central top plate. During ejection, it acts as an auxiliary force, which can ensure the synchronous and stable ejection of the middle and edge while reducing the force on the thin-walled edge, avoiding warping and deformation of the product edge, protecting the product from damage, and improving the product yield. Attached Figure Description

[0029] To more clearly illustrate the technical solution of this application, the drawings used in the description of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the internal structure of the injection mold for robot parts of this utility model;

[0031] Figure 2 This is a schematic diagram of the internal structure of the lower mold of this utility model;

[0032] Figure 3 This is a utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0033] Reference numerals: 1. Upper mold; 11. Upper template; 12. Mold cavity; 13. Positioning groove; 14. Sealing groove; 2. Lower mold; 21. Lower template; 22. Mold core; 221. Upper part of mold core; 222. Lower part of mold core; 223. Cavity; 224. Fan groove; 23. Positioning pin; 24. Sealing ring; 3. Ejection mechanism; 31. Middle top plate; 32. Edge top plate; 33. First ejector rod; 34. Driving component; 35. Second ejector rod; 36. Compression spring; 37. Limiting plate; 4. Adjusting bracket; 41. Slide plate; 411. Sliding hole; 42. Support rod; 43. Connecting rod; 5. Linkage assembly; 51. First connecting rod; 52. Second connecting rod; 53. Third connecting rod; 54. Support frame; 6. Base; 7. Cooling pipe; 8. Fan. Detailed Implementation

[0034] To make the objectives, features, and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0035] Reference Figures 1-3 The diagram shows a structural schematic of a robot component injection mold according to the present invention. Specifically, it may include the following structure: an upper mold 1 and a lower mold 2, wherein the upper mold 1 is disposed above the lower mold 2, and the bottom of the upper mold 1 is provided with a mold cavity 12; the top of the lower mold 2 is provided with a mold core 22 adapted to the mold cavity 12, and an ejection mechanism 3 is provided inside the mold core 22.

[0036] The ejection mechanism 3 includes a central top plate 31 and at least two edge top plates 32. The central top plate 31 is movably disposed at the top center of the mold core 22 and perpendicular to the top surface of the mold core, and the central top plate 31 is connected to the driving component 34 passing through the lower mold 2 via a first ejector rod 33. The two edge top plates 32 are movably disposed at the top edge of the mold core 22 and perpendicular to the tangent of the arc-shaped edge of the mold core, and the two edge top plates 32 are slidably disposed on the adjusting bracket 4 via a second ejector rod 35. The adjusting bracket 4 is installed on the mold core 22.

[0037] A connecting rod assembly 5 is connected between the first top rod 33 and the second top rod 35; the driving member 34 can drive the first top rod 33 to move upward, and synchronously drive the corresponding edge top plate 32 to move obliquely upward through the connecting rod assembly 5.

[0038] In the embodiments of this application, an upper mold 1 and a lower mold 2 are used. The upper mold 1 is disposed opposite to the lower mold 2, and a mold cavity 12 is provided at the bottom of the upper mold 1. A mold core 22 adapted to the mold cavity 12 is provided at the top of the lower mold 2, and an ejection mechanism 3 is provided inside the mold core 22. The ejection mechanism 3 includes a central top plate 31 and at least two edge top plates 32. The central top plate 31 is movably disposed at the top center of the mold core 22 and perpendicular to the top surface of the mold core. The central top plate 31 is connected to the mold core 22 by a first ejector rod 33. The driving component 34 of the lower mold 2 is connected; the two edge top plates 32 are movably disposed on the top edge of the mold core 22 and perpendicular to the tangent of the arc edge of the mold core, and the two edge top plates 32 are slidably disposed on the adjusting bracket 4 through the second push rod 35; the adjusting bracket 4 is installed on the mold core 22; a connecting rod assembly 5 is connected between the first push rod 33 and the second push rod 35; the driving component 34 can drive the first push rod 33 to move upward, and synchronously drive the corresponding edge top plate 32 to move obliquely upward through the connecting rod assembly 5. By setting a central top plate 31 and an edge top plate 32, the central top plate 31 is directly driven up and down by the driving component 34 to achieve ejection and resetting of the middle part of the product. The edge top plate 32 is inclined and perpendicular to the tangent of the arc edge, which can eject the arc edge of the product vertically, ensuring stability during ejection and avoiding warping, deformation, etc. The edge top plate 32 is synchronously driven by the connecting rod assembly 5, so that the central top plate 31 and the edge top plate 32 move synchronously, ejecting the middle and edge of the product synchronously, ensuring the stability of the product ejection. At the same time, due to the frictional wear of the connecting rod assembly 5, the edge top plate 32 is subjected to less force than the central top plate 31. During ejection, it acts as an auxiliary force, which can ensure the synchronous and stable ejection of the middle and edge while reducing the force on the thin-walled edge, avoiding warping and deformation of the product edge.

[0039] The following will further describe an injection mold for a robot component in this exemplary embodiment.

[0040] In this embodiment, the upper mold 1 is positioned above the lower mold 2. The upper mold 1 includes an upper template 11, and the mold cavity 12 is disposed within a first groove at the bottom of the upper template 11. The lower mold 2 includes a lower template 21, and the mold core 22 is disposed within a second groove at the top of the lower template 21. Positioning posts 23 are respectively provided at the four corners of the top of the lower template 21, and positioning grooves 13 are respectively provided at the four corners of the bottom of the upper template 11. The positioning grooves 13 are adapted to the positioning posts 23. By providing the positioning posts 23 and the positioning grooves 13, positioning and guiding functions can be achieved when the mold cavity 12 and the mold are merged, reducing alignment errors and improving injection molding accuracy.

[0041] As an example, the mold core 22 is formed by connecting an upper part 221 and a lower part 222, which together form a cavity 223 for mounting the ejector mechanism 3. This facilitates the installation and maintenance of the ejector mechanism 3 inside the mold core 22.

[0042] In this embodiment, the ejection mechanism 3 includes a central top plate 31 and at least two edge top plates 32. The central top plate 31 is movably disposed at the top center of the mold core 22 and perpendicular to the top surface of the mold core. The central top plate 31 is connected to a driving member 34 passing through the lower mold 2 via a first ejector rod 33. It should be noted that the area of ​​the central top plate 31 should be as large as possible, close to the arc-shaped edge of the mold core 22, so that the product has a large force-bearing area and uniform force distribution during ejection. During ejection, the driving member 34 directly drives the first ejector rod 33 upward, thereby causing the central top plate 31 to move upward and eject the product.

[0043] The two edge top plates 32 are movably disposed on the top edge of the mold core 22 and perpendicular to the tangent of the arc-shaped edge of the mold core, stabilizing the arc-shaped edge of the product under force and enabling stable ejection, preventing warping, cracking, etc. The two edge top plates 32 are slidably disposed on the adjusting bracket 4 via the second ejector rod 35. The adjusting bracket 4 is installed on the mold core 22, thus supporting and fixing the edge ejector rod, allowing it to move for ejection and resetting. A connecting rod assembly 5 connects the first ejector rod 33 and the second ejector rod 35. The driving component 34 can drive the first ejector rod 33 upward, and simultaneously drive the corresponding edge top plate 32 obliquely upward through the connecting rod assembly 5, thus simultaneously ejecting the middle and edge of the product, ensuring stable overall force on the product and enabling stable ejection. Furthermore, due to frictional wear of the connecting rod assembly 5, the edge top plate 32 experiences less force than the middle top plate 31, preventing excessive force on the thin-walled edge of the product, which could lead to deformation or breakage at the middle of the product.

[0044] As an example, the adjusting bracket 4 includes a sliding plate 41 and a support rod 42. The sliding plate 41 is inclined and has a sliding hole 411 along its axial direction. One end of the sliding plate 41 is hinged to the bottom of the cavity 223. The end of the second top rod 35 away from the edge top plate 32 is slidably disposed in the sliding hole 411 via a connecting rod 43. The support rod 42 is disposed on one side of the sliding plate 41, and one end of the support rod 42 is hinged to the side wall of the sliding plate 41. The other end of the support rod 42 is detachably connected to the bottom of the cavity 223. The bottom end of the support rod 42 can be connected via a connecting plate and detachable connectors such as bolts for easy assembly and disassembly. Through the above structural design, the adjusting bracket 4 can adjust the tilt angle. Specifically, during adjustment, the bottom end of the connecting rod 43 is disassembled and moved to adjust the support angle between it and the sliding plate 41, thereby adjusting the tilt angle of the sliding plate 41. Thus, the adjusting bracket 4 can be applied to any mold core 22, suitable for mold cores 22 with different curvature edges, and is also easy to manufacture, without needing to be manufactured at a specific tilt angle. In actual use, the adjusting bracket 4 is connected to the edge top plate 32 and the second top rod 35, and after being adjusted to a suitable angle, it is installed in the cavity 223 of the mold core 22. The hinged connection structure at each point is a conventional connection method well known to those skilled in the art.

[0045] As an example, the linkage assembly 5 includes a first linkage 51, a second linkage 52, and a third linkage 53. One end of the first linkage 51 is hinged to the side wall of the first top rod 33, and the other end of the first linkage 51 is hinged to one end of the second linkage 52. The first linkage 51 and the second linkage 52 form an acute angle. The second linkage 52 is V-shaped, and its corner is hinged to a support frame 54. The support frame 54 is installed at the bottom of the cavity 223. One end of the third linkage 53 is hinged to the other end of the second linkage 52, and the other end of the third linkage 53 is hinged to the connecting rod 43. During ejection, the drive member 34 drives the first push rod 33 upward, which in turn pushes out the central top plate 31. Simultaneously, the upward movement of the first push rod 33 causes the first connecting rod 51 to move upward, which in turn causes one end of the second connecting rod 52 to move upward. Since the second connecting rod 52 is fixed to the support frame 54 in the middle, its other end moves downward (like a seesaw structure). The second connecting rod 52 pulls one end of the third connecting rod 53 downward. The other end of the third connecting rod 53 is hinged to the connecting rod 43, which pushes the connecting rod 43 upward along the sliding hole 411. This, in turn, causes the connecting rod 43 to push the second push rod 35 upward at an angle, thus ejecting the edge top plate 32. In this way, the ejection of the central top plate 31 and the edge top plate 32 can be achieved simultaneously.

[0046] As an example, the driving component 34 includes a hydraulic cylinder that passes through the lower mold 2 and is connected to the bottom end of the first ejector rod 33 via a limiting plate 37. A compression spring 36 is sleeved on the outside of the first ejector rod 33, and the compression spring 36 abuts against the limiting plate 37 and the bottom of the cavity 223. By providing the compression spring 36, the first ejector rod 33 can be reset after being ejected and when the hydraulic cylinder retracts, and the edge top plate 32 can be reset simultaneously.

[0047] As an example, the lower mold 2 is also provided with a base 6 at its bottom, and the hydraulic cylinder is mounted on the base 6. An inspection window is also provided on one side of the base 6 to facilitate the installation and maintenance of the hydraulic cylinder.

[0048] As an example, the lower mold 2 is also equipped with a cooling mechanism, which includes a cooling pipe 7 and a fan 8. The inlet and outlet of the cooling pipe 7 are located on one side of the lower mold plate 21, and the cooling pipe 7 is arranged in a ring shape inside the lower part 222 of the mold core. The bottom of the cavity 223 has multiple fan slots 224 communicating with the cavity 223, and the fan 8 is located in the fan slots 224. The cooling pipe 7 passes through the fan slots 224. After injection molding, cooling water is circulated into the cooling pipe 7 to cool the mold core 22, and the low temperature is transferred to the product through the mold core 22 to cool the product. At the same time, by using the fan 8 located at the bottom of the cavity 223, and with the cooling pipe 7 passing above the fan 8, starting the fan 8 can blow the cold air upwards to the product, accelerating the cooling of the product. Furthermore, since the mold core 22 has a cavity 223, the heat exchange area can be reduced during cooling. At the same time, the cooling energy can be quickly applied to the product under the action of the fan 8, thus improving the cooling effect.

[0049] As an example, a sealing ring 24 is provided on the top edge of the mold core 22, and a sealing groove 14 is provided on the bottom edge of the mold cavity 12. The sealing ring 24 can be embedded in the sealing groove 14 to achieve a sealing fit, thereby improving the sealing effect when the upper mold 1 and the lower mold 2 are combined.

[0050] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0051] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

[0052] The above provides a detailed description of an injection mold for robot parts provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. An injection mold for robot parts, characterized in that, It includes an upper mold and a lower mold, the upper mold being disposed above the lower mold and having a mold cavity at its bottom; the lower mold has a mold core adapted to the mold cavity at its top, and an ejection mechanism is disposed inside the mold core; The ejection mechanism includes a central top plate and at least two edge top plates. The central top plate is movably disposed at the top center of the mold core and perpendicular to the top surface of the mold core, and is connected to a driving component passing through the lower mold via a first ejector rod. The two edge top plates are movably disposed at the top edge of the mold core and perpendicular to the tangent of the arc-shaped edge of the mold core, and are slidably disposed on an adjusting bracket via a second ejector rod. The adjusting bracket is mounted on the mold core. A connecting rod assembly connects the first push rod and the second push rod; the driving component can drive the first push rod to move upward, and synchronously drive the corresponding edge top plate to move obliquely upward through the connecting rod assembly.

2. The injection mold for robot parts according to claim 1, characterized in that, The upper mold includes an upper template, and the mold cavity is disposed in a first groove opened at the bottom of the upper template; The lower mold includes a lower template, and the mold core is disposed in a second groove opened on the top of the lower template; The lower template has positioning posts at the top four corners and positioning grooves at the bottom four corners, with the positioning grooves matching the positioning posts.

3. The injection mold for robot parts according to claim 2, characterized in that, The mold core is formed by connecting the upper part and the lower part of the mold core, and after docking, a cavity is formed for installing the ejection mechanism.

4. The injection mold for robot parts according to claim 3, characterized in that, The adjustment bracket includes a sliding plate and a support rod. The sliding plate is inclined and has a sliding hole along its axial direction. One end of the sliding plate is hinged to the bottom of the cavity. The end of the second push rod away from the edge plate is slidably disposed in the sliding hole via a connecting rod; The support rod is disposed on one side of the slide plate, and one end of the support rod is hinged to the side wall of the slide plate, while the other end of the support rod is detachably connected to the bottom of the cavity.

5. The injection mold for robot parts according to claim 4, characterized in that, The linkage assembly includes a first link, a second link, and a third link. One end of the first connecting rod is hinged to the side wall of the first top rod, and the other end of the first connecting rod is hinged to one end of the second connecting rod; and the first connecting rod and the second connecting rod form an acute angle; The second connecting rod is V-shaped, and its corner is hinged to the support frame; the support frame is installed at the bottom of the cavity; One end of the third link is hinged to the other end of the second link, and the other end of the third link is hinged to the connecting rod.

6. The injection mold for robot parts according to claim 3, characterized in that, The driving component includes a hydraulic cylinder. The hydraulic cylinder is inserted into the lower mold and connected to the bottom end of the first push rod through a limiting plate; A compression spring is sleeved on the outside of the first push rod, and the compression spring abuts between the limiting plate and the bottom of the cavity.

7. The injection mold for robot parts according to claim 6, characterized in that, The bottom of the lower mold is also provided with a base, and the hydraulic cylinder is installed on the base.

8. The injection mold for robot parts according to any one of claims 3-7, characterized in that, The lower mold is also equipped with a cooling mechanism, which includes cooling pipes and a fan. The inlet and outlet of the cooling pipe are located on one side of the lower template, and the cooling pipe is arranged in a ring inside the lower part of the mold core; The bottom of the cavity has multiple fan slots communicating with the cavity, and the fan is installed in the fan slot; and the cooling pipe passes through the fan slot.

9. The injection mold for robot parts according to claim 1, characterized in that, A sealing ring is provided on the top edge of the mold core, and a sealing groove is provided on the bottom edge of the mold cavity. The sealing ring can be embedded in the sealing groove to achieve a sealing fit.

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