Nut embedding and conveying device for injection-molded parts and working method thereof

Abstract

The application belongs to the technical field of conveying, and particularly relates to a nut conveying and assembling device, and especially relates to a nut embedding conveying device for injection molded parts and a working method thereof. In the nut embedding conveying device for injection molded parts, a heating element is arranged in a feeding block of a vibrating conveying mechanism, so that the nut can be preheated before being grabbed by a mechanical arm, the temperature difference between the nut and the just demolded injection molded part is reduced, the shrink marks and stress cracking of the injection molded part around the nut caused by the temperature difference are avoided, meanwhile, the nut cannot be continuously inserted due to the early cooling shrinkage of the nut caused by the rapid cooling of the contact surface between the injection molded part and the nut after the nut is not completely embedded into the injection molded part, and the success rate of embedding the nut into the injection molded part is improved.

Description

Technical Field

[0001] This invention belongs to the field of conveying technology, specifically relating to equipment for conveying and assembling nuts, and more particularly to a nut-embedding conveying device for injection molded parts and its working method. Background Technology

[0002] During injection molding, it is often necessary to insert metal nuts into the insertion holes of plastic injection molded parts.

[0003] In related technologies, robotic arms are used to directly grab nuts and insert them into the cavity of injection molds or into newly demolded plastic parts. However, during the assembly of nuts and injection molded parts, due to significant temperature differences, internal stress is easily generated at the contact surface between plastic and metal, leading to quality problems such as shrinkage marks and stress cracking around the nuts in the injection molded parts. Moreover, it often happens that some nuts cannot be inserted further after being inserted into the injection molded parts.

[0004] Therefore, how to avoid breakage of injection molded parts when nuts are inserted, while improving the success rate of nut insertion into injection molded parts, is a technical problem that urgently needs to be solved.

[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present application concept, and therefore, the above description is not considered to constitute prior art information. Summary of the Invention

[0006] This disclosure provides a nut-embedding and conveying device for injection molded parts and its working method.

[0007] In a first aspect, embodiments of this disclosure provide a nut-embedding conveying device for injection molded parts, comprising:

[0008] Injection molds are used to inject molded parts;

[0009] A vibratory conveyor mechanism is used to feed nuts.

[0010] A robotic arm is used to grasp nuts and insert them into the mounting holes of injection molded parts;

[0011] The vibratory conveying mechanism includes:

[0012] Vibration feeding assembly;

[0013] A conveyor block having a conveyor groove;

[0014] The feeding block is slidably disposed within the conveying trough;

[0015] The surface of the feeding block is provided with a receiving groove for accommodating nuts conveyed from the vibrating feeding assembly, and a heating element is provided inside the feeding block to heat the nuts in the receiving groove.

[0016] A drive cylinder is used to drive the feed block to move within the conveying trough.

[0017] In one optional embodiment, the side wall of the conveying block is provided with a discharge port;

[0018] The vibrating conveying mechanism also includes:

[0019] A pusher cylinder is provided on the side of the conveying block, and the piston rod and the discharge port of the pusher cylinder are respectively provided on both sides of the conveying groove.

[0020] When the nut inside the feeding block is positioned opposite the discharge port, the piston rod of the pusher cylinder extends to push the nut out of the discharge port.

[0021] In one optional embodiment, a retaining roller is rotatably provided at the bottom of the receiving groove, and the top surface of the retaining roller abuts against a nut inside the receiving groove;

[0022] The feeding block is also provided with an inner cavity;

[0023] A pusher block is slidably disposed within the inner cavity;

[0024] The piston rod of the drive cylinder extends into the inner cavity and connects to the push block;

[0025] The bottom surface of the pushing block abuts against the top surface of the abutting roller;

[0026] When the drive cylinder drives the feeding block to move in the conveying trough, it pushes the push block to move along the inner cavity, so as to drive the nut in the receiving trough to rotate through the abutment roller.

[0027] In one optional embodiment, a first return spring is further provided inside the cavity;

[0028] The push block abuts against the side wall of the inner cavity via the first reset spring;

[0029] The bottom of the conveying trough is provided with an elastic protrusion;

[0030] When the drive cylinder drives the feeding block to move in the conveying groove and pass over the elastic protrusion, the drive cylinder first pushes the push block to compress the first return spring, so that the nut rotates in the first direction. When the first return spring is compressed to the limit position, the drive cylinder pushes the feeding block 230 to pass over the elastic protrusion. At this time, the first return spring pushes the push block to reset, so that the nut rotates in the second direction, so that the side wall of the nut is heated evenly.

[0031] In one optional implementation, the number of the elastic protrusions is multiple;

[0032] Along the conveying direction of the conveying block, a plurality of the elastic protrusions are arranged in front of the discharge port.

[0033] In one optional embodiment, the side wall of the conveying block is provided with a feed inlet communicating with the conveying groove;

[0034] The location of the feed inlet is adapted to the discharge end of the vibrating feeding assembly;

[0035] The width of the feed inlet is greater than the width of the nut conveyed by the vibratory feeding assembly.

[0036] In one optional embodiment, the feed inlet is provided with a clamping plate;

[0037] The clamping plate is slidably connected to the sliding hole on the side wall of the feed inlet via a connecting rod;

[0038] A push plate is provided on the piston rod of the drive cylinder;

[0039] When the drive cylinder drives the feeding block to move in the conveying trough, it pushes the clamping plate to clamp the nut in the feed port to avoid the nut in the feeding block being scratched due to tilting when the feeding block moves.

[0040] In one alternative embodiment, the push plate is provided with an inclined surface;

[0041] The clamping plate is provided with a mating surface at the location where it is adapted to the inclined surface;

[0042] The mounting surfaces of the clamping plate and the connecting rod are provided with sliding grooves;

[0043] The connecting rod is slidably connected within the slide groove, and the connecting rod is elastically connected to the slide groove via a second return spring.

[0044] In one optional embodiment, an elastic limiting member is provided on the clamping surface of the clamping plate and the nut;

[0045] When the drive cylinder drives the feeding block to move in the conveying groove and pushes the clamping plate to clamp the nut in the feed port, the clamping plate is pushed to move in the opposite direction of the feed port so that the elastic limiting member abuts against the groove wall of the central groove of the nut.

[0046] Secondly, this disclosure also provides a working method for using the nut-embedding conveying device described above, the working method comprising:

[0047] Injection molding is performed on injection molds to mold parts;

[0048] The vibratory conveyor feeds the nuts and heats them using a heating element.

[0049] Open the injection mold to expose the molded part;

[0050] The heated nut is inserted into the newly exposed injection molded part by a robotic arm, thus completing the nut installation.

[0051] The beneficial effects of this invention are that the nut embedding conveying device and its working method for injection molded parts, by setting a heating element in the feeding block of the vibrating conveying mechanism, can preheat the nut before it is grasped by the robotic arm, reducing the temperature difference between the nut and the newly demolded injection molded part. This avoids shrinkage marks and stress cracking around the nut in the injection molded part caused by temperature difference. At the same time, it also avoids the nut being unable to be inserted due to premature cooling and shrinkage of the nut before it is fully embedded in the injection molded part caused by rapid cooling of the contact surface between the injection molded part and the nut, thus improving the success rate of nut embedding in the injection molded part.

[0052] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention are realized and obtained through the structures particularly pointed out in the description and the drawings.

[0053] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0054] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0055] Figure 1 This is a schematic diagram of the structure of a nut-embedding conveying device for injection molded parts provided in an embodiment of this disclosure;

[0056] Figure 2 This is a schematic diagram of the structure of the vibrating conveyor mechanism provided in the embodiments of this disclosure;

[0057] Figure 3 A cross-sectional view of a vibrating conveyor mechanism provided in an embodiment of this disclosure;

[0058] Figure 4 This is a schematic diagram illustrating the cooperation between the feeding block and the clamping plate provided in an embodiment of this disclosure.

[0059] Figure 5 A schematic diagram of a portion of the structure of the vibrating conveyor mechanism provided in an embodiment of this disclosure;

[0060] Figure 6 A flowchart illustrating the working method of the nut-embedding conveying device for injection molded parts provided in the embodiments of this disclosure.

[0061] In the diagram: 100, injection mold; 200, vibratory conveyor mechanism; 210, vibratory feeding assembly; 220, conveyor block; 221, conveyor trough; 222, discharge port; 230, feeding block; 231, receiving trough; 232, abutting roller; 233, inner cavity; 234, pushing block; 235, first return spring; 236, elastic protrusion; 240, drive cylinder; 250, pushing cylinder; 260, feed port; 261, clamping plate; 261a, inclined surface; 262, connecting rod; 263, elastic limiting element; 310, execution end; 400, nut. Detailed Implementation

[0062] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0063] In this document, when it is mentioned that a first component is located on a second component, this can mean that the first component can be directly formed on the second component, or that a third component can be inserted between the first and second components. Furthermore, in the accompanying drawings, the thickness of the components may be exaggerated or reduced for the purpose of effectively describing the technical content.

[0064] In this document, when an element or layer is referred to as “located,” “joined to,” “connected to,” “attached to,” or “coupled to” another element or layer, it may be directly located, joined, connected, attached to, or coupled to the other element or layer, or there may be intermediate elements or layers present. Conversely, when an element is referred to as “directly on another element or layer,” “directly joined to,” “directly connected to,” “directly attached to,” or “directly coupled to” another element or layer, there may be no intermediate elements or layers present. Other terms used to describe relationships between elements should be interpreted in a similar manner (e.g., “between” versus “directly between,” “adjacent” versus “directly adjacent,” etc.). As used herein, the term “and / or” includes any and all combinations of one or more of the related listed items.

[0065] In this document, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as “at least one of…” modify the entire list of elements when following a list of elements, rather than individual elements in the list. For example, the expression “at least one of a, b, and c” should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

[0066] The terminology used herein is for the purpose of describing specific exemplary configurations only and is not intended to be limiting. As used herein, the singular articles “a,” “an,” and “the” may also be intended to include plural forms unless otherwise expressly stated herein. The terms “comprising,” “including,” and “having” are inclusive and thus specify the presence of features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein should not be construed as requiring them to be performed in the specific order discussed or shown, unless specifically identified as such. Additional or alternative steps may be employed.

[0067] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.

[0068] Research has found that using a robotic arm to directly grab nuts and insert them into the injection mold cavity or the newly demolded plastic part can lead to several problems. During assembly, the significant temperature difference between the nut and the injection part can easily generate internal stress at the contact surface between the plastic and the metal, resulting in quality issues such as shrinkage marks and stress cracking around the nut in the injection part. Moreover, it is common for some nuts to be inserted into the injection part but then become impossible to insert further.

[0069] Based on the above research, this disclosure provides a conveying device and its working method for embedding a nut 400 in an injection molded part. By setting a heating element in the feeding block 230 of the vibrating conveying mechanism 200, the nut 400 can be preheated before being grasped by the robotic arm, reducing the temperature difference between the nut 400 and the newly demolded injection molded part. This avoids shrinkage marks and stress cracking around the nut 400 in the injection molded part caused by temperature difference. At the same time, it also avoids the nut 400 being unable to be inserted due to premature cooling and shrinkage of the contact surface between the injection molded part and the nut 400 before it is fully embedded in the injection molded part, thus improving the success rate of embedding the nut 400 into the injection molded part.

[0070] The shortcomings of the above solutions are the result of the inventor's practical experience and careful research. Therefore, the discovery process of the above problems and the solutions proposed in this disclosure should be considered as the inventor's contribution to this disclosure.

[0071] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0072] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0073] Please see Figure 1 and Figure 2 At least one embodiment provides a nut 400 embedding and conveying device for injection molded parts, comprising: an injection mold 100 for injection molding of injection molded parts; a vibrating conveying mechanism 200 for feeding the nut 400; and a robotic arm for gripping the nut 400 and inserting it into a mounting hole in the injection molded part; wherein the vibrating conveying mechanism 200 includes: a vibrating feeding assembly 210; a conveying block 220 having a conveying groove 221; a feeding block 230 slidably disposed within the conveying groove 221; the surface of the feeding block 230 having a receiving groove 231 for receiving the nut conveyed from the vibrating feeding assembly 210, and the feeding block 230 having a heating element for heating the nut 400 within the receiving groove 231; and a driving cylinder 240 for driving the feeding block 230 to move within the conveying groove 221.

[0074] By installing a heating element in the feeding block 230 of the vibrating conveyor mechanism 200, the nut 400 can be preheated before being grasped by the robotic arm, reducing the temperature difference between the nut 400 and the newly demolded injection molded part. This avoids shrinkage marks and stress cracking around the nut 400 in the injection molded part caused by temperature difference. At the same time, it also avoids the nut 400 being unable to be inserted due to premature cooling and shrinkage of the contact surface between the injection molded part and the nut 400 before it is fully embedded in the injection molded part, thus improving the success rate of the nut 400 being embedded in the injection molded part.

[0075] It should be noted that, Figure 1 Only the end effector 310 of the robotic arm is shown; the structure of the gliding joint is not shown.

[0076] Please see Figure 2 and Figure 3 The conveying block 220 has a discharge port 222 on its side wall; the vibrating conveying mechanism 200 also includes a pushing cylinder 250, which is disposed on the side of the conveying block 220, and the piston rod of the pushing cylinder 250 and the discharge port 222 are respectively disposed on both sides of the conveying groove 221; when the nut 400 in the feeding block 230 is disposed opposite to the discharge port 222, the piston rod of the pushing cylinder 250 extends to push the nut 400 out of the discharge port 222.

[0077] The receiving groove 231 has a rotatable abutment roller 232 at its bottom, the top surface of which abuts against the nut 400 inside the receiving groove 231. The feeding block 230 also has an inner cavity 233. A pushing block 234 is slidably disposed inside the inner cavity 233. The piston rod of the driving cylinder 240 extends into the inner cavity 233 and connects to the pushing block 234. The bottom surface of the pushing block 234 abuts against the top surface of the abutment roller 232. When the driving cylinder 240 drives the feeding block 230 to move in the conveying groove 221, it pushes the pushing block 234 to move along the inner cavity 233, thereby driving the nut 400 inside the receiving groove 231 to rotate through the abutment roller 232.

[0078] By linking the pushing block 234 with the holding roller 232, the nut 400 rotates during the heating process, thereby driving the nut 400 to distribute heat evenly on the side wall of the nut 400, preventing insufficient heating and further optimizing the preheating effect. At the same time, uniform preheating helps to more thoroughly reduce the temperature difference between the nut 400 and the injection molded part.

[0079] It should be noted that a first return spring 235 is also provided in the inner cavity 233; the pushing block 234 abuts against the side wall of the inner cavity 233 through the first return spring 235; an elastic protrusion 236 is provided at the bottom of the conveying groove 221; when the driving cylinder 240 drives the feeding block 230 to move in the conveying groove 221 and pass the elastic protrusion 236, the driving cylinder 240 first pushes the pushing block 234 to compress the first return spring 235, so that the nut 400 rotates in the first direction. When the first return spring 235 is compressed to the limit position, the driving cylinder 240 pushes the feeding block 230 past the elastic protrusion 236. At this time, the first return spring 235 pushes the pushing block 234 to reset, so that the nut 400 rotates in the second direction, so that the side wall of the nut 400 is heated evenly.

[0080] The work process is as follows: Figure 3 As shown, the drive cylinder 240 pushes the push block 234 to move. Since the push block 234 is connected to the feeding block 230 through the first return spring 235, the drive cylinder 240 pushes the push block 234 to move, that is, it simultaneously pushes the feeding block 230 to move. After the feeding block 230 abuts against the elastic protrusion 236, the drive cylinder 240 first pushes the push block 234 to compress the first return spring 235, causing the nut 400 to rotate in the first direction. At this time, the feeding block 230 remains stationary. When the first return spring 235 is compressed to its limit position, the drive cylinder 240 pushes the feeding block 230 past the elastic protrusion 236, the first return spring 235 resets, and pushes the push block 234 back relative to the feeding block 230, causing the nut 400 to rotate in the second direction.

[0081] The cooperation between the elastic protrusion 236 and the first return spring 235 enables the nut 400 to rotate automatically in both directions, thereby ensuring that all sides of the nut 400 are heated evenly, eliminating the heating blind spots that may be left by unidirectional rotation, and making the side walls of the nut 400 heated more evenly.

[0082] In a preferred embodiment, there are multiple elastic protrusions 236; along the conveying direction of the conveying block 220, the multiple elastic protrusions 236 are all arranged in front of the discharge port 222. The multiple elastic protrusions 236 form multiple trigger points on the conveying path, so that the nut 400 can undergo multiple bidirectional rotations before reaching the discharge port 222, ensuring that the nut 400 is continuously and fully heated throughout the conveying process.

[0083] Please see Figure 1 and Figure 3The side wall of the conveying block 220 is provided with a feed inlet 260 that communicates with the conveying groove 221; the position of the feed inlet 260 is adapted to the discharge end of the vibrating feeding assembly 210; the width of the feed inlet 260 is greater than the width of the nut 400 conveyed by the vibrating feeding assembly 210.

[0084] Specifically, the feed inlet 260 is provided with a clamping plate 261; the clamping plate 261 is slidably connected to the sliding hole on the side wall of the feed inlet 260 via a connecting rod; a push plate is provided on the piston rod of the drive cylinder 240; when the drive cylinder 240 drives the feeding block 230 to move in the conveying groove 221, it pushes the clamping plate 261 to clamp the nut 400 in the feed inlet 260, so as to avoid the nut 400 in the feed block 230 being scratched due to tilting when the feeding block 230 moves.

[0085] The clamping plate 261 fixes the nut 400 in the feed port 260 when the feed block 230 moves, preventing it from tilting, shaking or falling off due to inertia or vibration, thereby avoiding possible scratches when the nut 400 slides in the conveying groove 221.

[0086] Please see Figure 3 and Figure 4 The push plate is provided with an inclined surface 261a; the clamping plate 261 is provided with a mating surface at the adaptation point with the inclined surface 261a; the assembly surface of the clamping plate 261 and the connecting rod 262 is provided with a sliding groove; the connecting rod is slidably connected in the sliding groove, and the connecting rod is elastically connected to the sliding groove through a second return spring.

[0087] Please see Figure 5 An elastic limiting member 263 is provided on the clamping surface of the clamping plate 261 and the nut 400. When the driving cylinder 240 drives the feeding block 230 to move in the conveying groove 221 and pushes the clamping plate 261 to clamp the nut 400 in the feed port 260, the clamping plate 261 is pushed to move in the opposite direction of the feed in the feed port 260 so that the elastic limiting member 263 abuts against the groove wall of the central groove of the nut 400.

[0088] When the feeding block 230 conveys the nut 400, the elastic limiting member 263 on the clamping plate 261 moves the nut 400 in the opposite direction of the feed port 260, so that the nut 400 in the feed port 260 is separated from the nut 400 in the feeding block 230, further preventing the nut 400 in the feeding block 230 from being scratched.

[0089] Please see Figure 6This disclosure also provides a working method for using the nut 400 embedded in the conveying device as described above. By setting a heating element in the feeding block 230 of the vibrating conveying mechanism 200, the nut 400 can be preheated before being grasped by the robotic arm, reducing the temperature difference between the nut 400 and the newly demolded injection molded part. This avoids shrinkage marks and stress cracking around the nut 400 in the injection molded part caused by temperature difference. At the same time, it also avoids the nut 400 being unable to continue to be inserted due to premature cooling and shrinkage of the contact surface between the injection molded part and the nut 400 before it is fully embedded in the injection molded part, thus improving the success rate of embedding the nut 400 into the injection molded part.

[0090] Specifically, the working method includes:

[0091] S110: Injection molding of the part is performed using injection mold 100;

[0092] S120: The vibratory conveyor 200 feeds the nut 400 and heats the nut 400 through the heating element;

[0093] S130: Open the injection mold 100 to expose the injection molded part;

[0094] S140: The heated nut 400 is inserted into the injection molded part that has just been opened by the robotic arm, thus completing the installation of the nut 400.

[0095] In summary, the present invention provides a conveying device for embedding a nut 400 in an injection molded part and its working method. The conveying device for embedding a nut 400 in an injection molded part preheats the nut 400 before it is grasped by the robotic arm by incorporating a heating element within the feeding block 230 of the vibrating conveying mechanism 200. This reduces the temperature difference between the nut 400 and the newly demolded injection molded part, thereby preventing shrinkage marks and stress cracking around the nut 400 in the injection molded part due to temperature differences. Simultaneously, it also avoids the premature cooling and shrinkage of the nut 400 before it is fully embedded in the injection molded part due to rapid cooling of the contact surface between the injection molded part and the nut 400, thus improving the success rate of embedding the nut 400 into the injection molded part.

[0096] In the description of the embodiments of the present invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0097] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the 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, and therefore should not be construed as a limitation of the invention. Furthermore, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence unless expressly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed above may be referred to as a second element, component, region, layer, or segment.

[0098] Spatially relative terms, such as “inside,” “outside,” “below,” “below,” “down,” “above,” “up,” etc., may be used herein to describe the relationship between one element or feature illustrated in the figures and another element or feature. In addition to the orientations depicted in the figures, spatially relative terms may be intended to cover different orientations of the device in use or operation. For example, if the device in the figure is flipped, an element described as “below” or “below” other elements or features would be oriented as “above” other elements or features. Thus, the example term “below” can cover both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0099] In the above discussion, unless otherwise stated, when used to describe numerical values, the terms “about,” “approximately,” “basically,” etc., indicate a change of + / - 10% in that value.

[0100] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A nut-embedding conveying device for injection molded parts, characterized in that, include: Injection mold (100), which is used to injection mold parts; A vibratory conveyor (200) is used to feed nuts (400); A robotic arm is used to grasp a nut (400) and insert the nut (400) into the mounting hole of the injection molded part; The vibratory conveying mechanism (200) includes: Vibratory feeding assembly (210); The conveyor block (220) has a conveyor groove (221); The feeding block (230) is slidably disposed within the conveying groove (221); The surface of the feeding block (230) is provided with a receiving groove (231) for receiving nuts conveyed from the vibrating feeding assembly (210), and a heating element is provided inside the feeding block (230) to heat the nuts (400) in the receiving groove (231); A drive cylinder (240) is used to drive the feed block (230) to move within the conveying trough (221); The side wall of the conveying block (220) is provided with a discharge port (222); The vibratory conveying mechanism (200) further includes: A pusher cylinder (250) is provided on the side of the conveying block (220), and the piston rod of the pusher cylinder (250) and the discharge port (222) are respectively provided on both sides of the conveying groove (221); When the nut (400) inside the feeding block (230) is positioned opposite the discharge port (222), the piston rod of the push cylinder (250) extends to push the nut (400) out of the discharge port (222); The bottom of the receiving groove (231) is rotatably provided with a retaining roller (232), and the top surface of the retaining roller (232) abuts against the nut (400) inside the receiving groove (231); The feeding block (230) is also provided with an inner cavity (233); A pusher block (234) is slidably disposed inside the inner cavity (233); The piston rod of the drive cylinder (240) extends into the inner cavity (233) and connects to the push block (234); The bottom surface of the pushing block (234) abuts against the top surface of the abutting roller; When the drive cylinder (240) drives the feeding block (230) to move in the conveying groove (221), it pushes the push block (234) to move along the inner cavity (233) so as to drive the nut (400) in the receiving groove (231) to rotate through the abutment roller; The inner cavity (233) is also provided with a first return spring (235); The push block (234) abuts against the side wall of the inner cavity (233) via the first return spring (235); The bottom of the conveying trough (221) is provided with an elastic protrusion (236).

2. The nut-embedding conveying device for injection molded parts as described in claim 1, characterized in that, When the drive cylinder (240) drives the feeding block (230) to move in the conveying groove (221) and pass the elastic protrusion (236), the drive cylinder (240) first pushes the push block (234) to compress the first return spring (235), so that the nut (400) rotates in the first direction. When the first return spring (235) is compressed to the limit position, the drive cylinder (240) pushes the feeding block (230) to pass the elastic protrusion (236). At this time, the first return spring (235) pushes the push block (234) to reset, so that the nut (400) rotates in the second direction, so that the side wall of the nut (400) is heated evenly.

3. The nut-embedding conveying device for injection molded parts as described in claim 2, characterized in that, The number of the elastic protrusions (236) is multiple; Along the conveying direction of the conveying block (220), a plurality of elastic protrusions (236) are provided in front of the discharge port (222).

4. The nut-embedding conveying device for injection molded parts as described in claim 1, characterized in that, The side wall of the conveying block (220) is provided with a feed inlet (260) that communicates with the conveying groove (221). The opening position of the feed inlet (260) is adapted to the discharge end of the vibrating feeding assembly (210); The width of the feed inlet (260) is greater than the width of the nut (400) conveyed by the vibratory feeding assembly (210).

5. The nut-embedding conveying device for injection molded parts as described in claim 4, characterized in that, The feed inlet (260) is provided with a clamping plate (261); The clamping plate (261) is slidably connected to the sliding hole on the side wall of the feed port (260) via the connecting rod (262); A push plate is provided on the piston rod of the drive cylinder (240); When the drive cylinder (240) drives the feeding block (230) to move in the conveying groove (221), it pushes the clamping plate (261) to clamp the nut (400) in the feed port (260) to avoid the nut (400) in the feeding block (230) being scratched due to the tilting of the nut (400) in the feed port (260) when the feeding block (230) moves.

6. The nut-embedding conveying device for injection molded parts as described in claim 5, characterized in that, The push plate is provided with an inclined surface (261a). The clamping plate (261) and the inclined surface (261a) are provided with a mating surface at the fitting point; The mounting surfaces of the clamping plate (261) and the connecting rod (262) are provided with sliding grooves; The connecting rod is slidably connected within the slide groove, and the connecting rod is elastically connected to the slide groove via a second return spring.

7. The nut-embedding conveying device for injection molded parts as described in claim 6, characterized in that, An elastic limiting member (263) is provided on the clamping surface of the clamping plate (261) and the nut (400). When the drive cylinder (240) drives the feeding block (230) to move in the conveying groove (221) and pushes the clamping plate (261) to clamp the nut (400) in the feed port (260), the clamping plate (261) is pushed to move in the opposite direction of the feed port (260) so that the elastic limiting member (263) abuts against the groove wall of the central groove of the nut (400).

8. A method for using a conveying device for embedding nuts in injection molded parts as described in claim 1, characterized in that, The working method includes: The injection molded part is injection molded using an injection mold (100); The vibratory conveyor (200) feeds the nut (400) and heats the nut (400) through the heating element; Open the injection mold (100) to expose the injection molded part; The heated nut (400) is inserted into the injection molded part that has just been opened by the robotic arm, thus completing the nut (400) installation.

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