Injection mold for automatically assembling LED (light-emitting diode) light bar

Abstract

The injection mold for automatic assembly of the LED light bars is erected on an automatic assembly production line of the LED light bars and comprises a rack, an upper mold assembly arranged on the rack and a lower mold assembly arranged on the rack and opposite to the upper mold assembly. The lower die assembly comprises a base, a plurality of guide columns arranged on the base, a lower die plate arranged on the guide columns in a sleeving mode, a power assembly arranged in the X direction and connected with the lower die plate and two movable base plate assemblies arranged in the Y direction, and the power assembly pulls the lower die plate in the X direction so that the lower die plate can move up and down along the guide columns. The movable base plate assemblies can move in the Y direction, when the lower die plate moves upwards along the guide columns, the movable base plate assemblies move inwards and are arranged at the bottom of the lower die plate in a cushioned mode, and when the movable base plate assemblies move outwards and are pulled out, the lower die plate moves downwards along the guide columns. According to the injection mold, an existing injection mold is improved, the injection mold can be used in cooperation with an automatic production line, and the injection mold is simple in structure and convenient to use.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of lamp strip processing, and more particularly to an injection mold for automatic assembly of an LED lamp strip. BACKGROUND

[0002] In the current assembly process of an LED lamp strip, various processes such as lamp plate separation, lamp strip handling, wire cutting, wire welding, convex mirror feeding, and injection molding are required. However, the current process steps are completed manually. Therefore, a conventional injection molding machine is used for injection molding. However, with the increasing degree of automation, injection molding needs to be performed on an automated assembly line. When setting up the injection molding machine, the cooperation between the upper and lower molds and the cooperation between the injection molding machine and the fixture on the assembly line need to be considered. CONTENT OF THE UTILITY MODEL

[0003] The purpose of the embodiment of the application is to provide an injection mold for automatic assembly of an LED lamp strip to solve the cooperation problem between the injection mold and the fixture on the automatic assembly line of the LED lamp strip.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the embodiment of the application is to provide an injection mold for automatic assembly of an LED lamp strip, which is erected on an automatic assembly production line of the LED lamp strip and includes a rack, an upper mold assembly arranged on the rack, and a lower mold assembly arranged on the rack and opposite to the upper mold assembly. The lower mold assembly includes a base, a plurality of guide columns arranged on the base, a lower mold plate sleeved on the plurality of guide columns, a power assembly arranged along the X direction and connected with the lower mold plate, and two movable spacer plate assemblies arranged along the Y direction. The power assembly pulls the lower mold plate along the X direction so that the lower mold plate can move up and down along the plurality of guide columns. Each movable spacer plate assembly can move along the Y direction. When the lower mold plate moves up along the guide columns, the movable spacer plate assembly moves inward and is arranged at the bottom of the lower mold plate. When the movable spacer plate assembly moves outward and is extracted, the lower mold plate moves down along the guide columns.

[0005] Specifically, the base includes two bottom plates arranged opposite to each other, and a gap is arranged between the two bottom plates. A first sliding groove is arranged on the inner side of each bottom plate. The power assembly includes two pull rods respectively slidably arranged in the first sliding grooves, a first air cylinder arranged at one end of the two bottom plates, and a first hinge assembly and a second hinge assembly. One end of the pull rod is fixedly connected with the piston of the first air cylinder. The other end of the pull rod is hingedly connected with one end of the lower mold plate through the first hinge assembly. One end of the second hinge assembly is connected with the piston of the first air cylinder. The other end of the second hinge assembly is hingedly connected with the other end of the lower mold plate.

[0006] Specifically, the first hinge assembly comprises a first hinge, a first upper hinge shaft and a first lower hinge shaft horizontally penetrating the top end and the bottom end of the first hinge respectively, both ends of the first upper hinge shaft are rotatably connected to the lower die plate, both the pull rods are provided with a strip-shaped hole respectively, both ends of the first lower hinge shaft are rotatably connected to both the strip-shaped holes.

[0007] Specifically, both the pull rods are further provided with a connecting hole respectively, both the connecting holes are connected by a connecting shaft.

[0008] Specifically, the second hinge assembly comprises a second hinge, a second upper hinge shaft and a second lower hinge shaft horizontally penetrating the top end and the bottom end of the second hinge respectively, both ends of the second upper hinge shaft are rotatably connected to the lower die plate, both ends of the second lower hinge shaft are rotatably connected to both the pull rods, and the piston of the first cylinder is connected to the middle part of the second lower hinge shaft.

[0009] Specifically, each of the movable spacer plate assemblies comprises a second cylinder and a sliding block driven by the second cylinder, the lower die plate is provided with a second sliding groove, the sliding block is slidably arranged in the second sliding groove, and when the lower die plate moves upwards along the guide column, the sliding block moves inwards and is arranged at the bottom of the lower die plate.

[0010] Specifically, the sliding block is in L-shaped cross section, the L-shaped sliding block comprises a horizontal part slidably arranged in the second sliding groove and a vertical part, and the height of the horizontal part is equal to or less than the depth of the second sliding groove.

[0011] Specifically, both ends of the lower die plate are provided with a connecting lug outwardly penetrating, and the first hinge assembly and the second hinge assembly are hingedly connected to the connecting lug respectively.

[0012] Specifically, the guide column is four, which is arranged at the four corners of the base respectively, and the four corners of the lower die plate are sleeved on the four guide columns.

[0013] Specifically, the rack comprises a bottom base, a plurality of support rods arranged on the bottom base, and a top plate arranged on the top of the plurality of support rods, the lower die assembly is arranged on the bottom base, the lower die plate assembly is arranged at the bottom of the top plate, the bottom base is located below the LED light bar automatic assembly production line, and the support rods are penetrated from the LED light bar automatic assembly production line.

[0014] In the application, the injection mold is located on the LED light bar automatic assembly production line. When the LED light bar is automatically assembled, the LED light plate is located on the clamp. After the injection is completed, it needs to be separated from the clamp. When the injection is in progress, the lower mold plate moves upward along the guide column. The movable gasket assembly moves inward and is provided at the bottom of the lower mold plate, which supports the lower mold plate and facilitates the clamping of the upper mold assembly and the lower mold assembly for injection. After the injection is completed, the movable gasket assembly moves outward and is extracted. The lower mold plate moves downward along the guide column and avoids the clamp, which facilitates the forward movement of the clamp. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0016] Figure 1 The injection mold provided by the embodiments of the present application is used for the structure diagram of the LED light bar automatic assembly;

[0017] Figure 2 The structure diagram of the injection mold provided by the embodiments of the present application;

[0018] Figure 3 The structure diagram of the lower mold assembly in the injection mold provided by the embodiments of the present application;

[0019] Figure 4 Another angle structure diagram of the lower mold assembly in the injection mold provided by the embodiments of the present application;

[0020] Figure 5 The connection diagram of the pull rod, the first hinge assembly and the second hinge assembly in the injection mold provided by the embodiments of the present application;

[0021] In the drawings, various reference signs are:

[0022] 1-LED light bar automatic assembly production line;

[0023] 10-Frame; 11-Bottom base; 12-Supporting rod; 13-Top plate;

[0024] 20-Upper mold assembly;

[0025] 30-Lower mold assembly; 31-Base; 311-Bottom plate; 32-Guide column; 33-Lower mold plate; 331-Connecting lug; 332-Second sliding groove;

[0026] 40 - power assembly; 41 - pull rod; 411 - connecting hole; 412 - strip-shaped hole; 42 - first cylinder; 43 - first hinge assembly; 431 - first hinge; 432 - first upper hinge shaft; 433 - first lower hinge shaft; 44 - second hinge assembly; 441 - second hinge; 442 - second upper hinge shaft; 443 - second lower hinge shaft; 45 - connecting shaft;

[0027] 50 - movable base plate assembly; 51 - second cylinder; 52 - slider; 521 - horizontal part; 522 - vertical part. DETAILED DESCRIPTION

[0028] In order to make the technical problems, technical solutions and beneficial effects of the present application more clear, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0029] Referring to Figure 1 , Figure 2 The injection mold for automatic assembly of LED light strips provided by the embodiments of the present application is erected on the LED light strip automatic assembly production line 1 and comprises a rack 10, an upper mold assembly 20 arranged on the rack 10, and a lower mold assembly 30 arranged on the rack 10 and opposite to the upper mold assembly 20. Specifically, the rack 10 comprises a bottom base 11, a plurality of support rods 12 arranged on the bottom base 11, and a top plate 13 arranged on the top of the plurality of support rods 12, the lower mold assembly 30 is arranged on the bottom base 11, the upper mold plate assembly 20 is arranged at the bottom of the top plate 13, the bottom base 11 is located below the LED light strip automatic assembly production line 1, and the support rods 12 are penetrated through the LED light strip automatic assembly production line 1, so that the upper mold assembly 20 and the lower mold assembly 30 can exactly mold and inject the LED light strip on the LED light strip automatic assembly production line 1 in the middle.

[0030] In the embodiment, the lower mold assembly 30 comprises a base 31, a plurality of guide columns 32 arranged on the base 31, a lower mold plate 33 sleeved on the plurality of guide columns 32, a power assembly 40 arranged along the X direction and connected with the lower mold plate 33, and two movable pad assemblies 50 arranged along the Y direction. The power assembly 40 pulls the lower mold plate 33 along the X direction so that the lower mold plate 33 can move up and down along the plurality of guide columns 32. Each movable pad assembly 50 can move along the Y direction. When the lower mold plate 33 moves up along the guide columns 32, the movable pad assembly 50 moves inward and pads on the bottom of the lower mold plate 33. When the movable pad assembly 50 moves outward and is extracted, the lower mold plate 33 moves down along the guide columns 32. In the embodiment, the injection mold is located on the LED light bar automatic assembly production line 1. When the LED light bar is automatically assembled, the LED light plate is located on the clamp. After the injection is completed, the LED light plate needs to be separated from the clamp. When the injection is performed, the lower mold plate 33 moves up along the guide columns 32, and the movable pad assembly 50 moves inward and pads on the bottom of the lower mold plate 33, thereby supporting the lower mold plate 33 and facilitating the clamping injection of the upper mold assembly 20 and the lower mold assembly 30. After the injection is completed, the movable pad assembly 50 moves outward and is extracted, and the lower mold plate 33 moves down along the guide columns 32, thereby avoiding the clamp and facilitating the continuous movement of the clamp.

[0031] Specifically, referring to Figures 3 to 5 , the base 31 comprises two bottom plates 311 arranged oppositely, and a space is arranged between the two bottom plates 311. A first sliding groove (not numbered in the figure) is arranged on the inner side of each bottom plate 311, that is, the two first sliding grooves are located in the space. The power assembly 40 comprises two pull rods 41 respectively slidingly arranged in the first sliding grooves, a first air cylinder 42 arranged at one end of the two bottom plates 311, and a first hinge assembly 43 and a second hinge assembly 44. One end of the pull rod 41 is fixedly connected with the first air cylinder 42, and the other end of the pull rod 41 is hingedly connected with one end of the lower mold plate 33 through the first hinge assembly 43. One end of the second hinge assembly 44 is connected with the piston of the first air cylinder 42, and the other end of the second hinge assembly 44 is hingedly connected with the other end of the lower mold plate 33. The two ends of the lower mold plate 33 respectively pass outwards to connect with the connecting ears 331, and the first hinge assembly 43 and the second hinge assembly 44 are respectively hingedly connected with the connecting ears 331. That is, the two ends of the lower mold plate 33 are respectively connected with the pull rod 41 and the piston of the first air cylinder 42 through the first hinge assembly 43 and the second hinge assembly 44. When the piston of the first air cylinder 42 moves outward, the lower mold plate 33 is pulled outward through the second hinge assembly 44, and the other end of the lower mold plate 33 pushes the pull rod 41 to also move outward through the first hinge assembly 43, at this time, the lower mold plate 33 moves down along the guide columns 32. Similarly, when the piston of the first air cylinder 42 moves inward, the second hinge assembly 44 and the first hinge assembly 43 are retracted inward, and the lower mold plate 33 moves up along the guide columns 32.

[0032] Specifically, the first hinge assembly 43 comprises a first hinge 431 and a first upper hinge shaft 432 and a first lower hinge shaft 433 horizontally penetrating the top end and the bottom end of the first hinge 431 respectively, both ends of the first upper hinge shaft 432 are rotatably connected to the lower die plate 33, and two strip-shaped holes 412 are respectively arranged on the two bottom plates 311, both ends of the first lower hinge shaft 433 are rotatably connected in the two strip-shaped holes 412. The two strip-shaped holes 412 provide a moving space for the first lower hinge shaft 433, facilitating the outward movement or inward retraction of the first hinge 431.

[0033] Further, the two pull rods 41 are respectively provided with a connecting hole 411 on the opposite side, and the two connecting holes 411 are connected by a connecting shaft 45. The connecting hole 411 is located inside the strip-shaped hole 412. Through the connection of the connecting shaft 45 and the two connecting holes 411, the connection of the two pull rods 41 is strengthened, and the movement of the two pull rods 41 can be better kept consistent.

[0034] Specifically, the second hinge assembly 44 comprises a second hinge 441 and a second upper hinge shaft 442 and a second lower hinge shaft 443 horizontally penetrating the top end and the bottom end of the second hinge 441 respectively, both ends of the second upper hinge shaft 442 are rotatably connected to the lower die plate 33, both ends of the second lower hinge shaft 443 are rotatably connected to the two pull rods 41, and the piston of the first cylinder 42 is connected to the middle part of the second lower hinge shaft 443. In this way, when the piston of the first cylinder 42 is pulled, the second lower hinge shaft 443 is pulled, thereby driving the first upper hinge shaft 442 to rotate, so that the lower die plate 33 moves downward along the guide column 32.

[0035] In the embodiment, each movable backing plate assembly 50 comprises a second cylinder 51 and a sliding block 52 driven by the second cylinder 51. The lower die plate 33 is provided with a second sliding groove 332, and the sliding block 52 is slidably arranged in the second sliding groove 332. When the lower die plate 33 moves upward along the guide column 32 under the action of the power assembly 40, the sliding block 52 moves inward under the action of the second cylinder 51 and is arranged at the bottom of the lower die plate 33. In this way, the sliding block 52 supports the lower die plate 33, so that the lower die plate 33 can bear the pressure of the upper mold assembly 20 when the lower die plate 33 and the upper mold assembly 20 are combined for injection molding. When the combination is completed, the sliding block 52 moves outward to the outside of the lower die plate 33 under the action of the second cylinder 51, at this time, the lower die plate 33 moves downward along the guide column 32 under the action of the power assembly 40, and the lower die plate 33 is lowered to reset. In this way, the lower die plate 33 avoids the clamp on the LED light bar automatic assembly production line 1, facilitating the continuous movement of the clamp.

[0036] In the embodiment, the slider 52 is in L-shaped cross section, and the slider 52 includes a horizontal part 521 and a vertical part 522, wherein the horizontal part 521 is slidably arranged in the second sliding groove 332, and the vertical part 522 serves to support the lower mold plate 33. The height of the horizontal part 521 is equal to or less than the depth of the second sliding groove 332, so that when the vertical part 522 is withdrawn outside the lower mold plate 33, the horizontal part 521 is still located in the second sliding groove 332, the horizontal part 521 does not protrude out of the second sliding groove 332, and does not interfere with the lower mold plate 33, and avoids the horizontal part 521 being completely withdrawn out of the second sliding groove 332.

[0037] In the embodiment, the guide column 32 is four, which are respectively arranged at four corners of the base 31, and the four corners of the lower mold plate 33 are sleeved on the four guide columns 32. Through the four guide columns 32, the lower mold plate 33 can be better guided, and the movement of the lower mold plate 33 is more stable.

[0038] In summary, the injection mold for automatic assembly of the LED light bar provided by the embodiment of the present application improves the existing injection mold, so that it can be used with the automatic production line, and has simple structure and convenient use.

[0039] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A injection mold for automatic assembly of LED light bar, which is erected on an automatic assembly production line of LED light bar, comprising a frame, an upper mold assembly arranged on the frame, and a lower mold assembly arranged on the frame and opposite to the upper mold assembly, characterized in that: The lower die assembly comprises a base, a plurality of guide columns arranged on the base, a lower die plate sleeved on the guide columns, a power assembly arranged along the X direction and connected with the lower die plate, and two movable pad plate assemblies arranged along the Y direction. The power assembly pulls the lower die plate along the X direction so that the lower die plate can move up and down along the guide columns. Each movable pad plate assembly can move along the Y direction. When the lower die plate moves up along the guide columns, the movable pad plate assemblies move inward to pad the bottom of the lower die plate. When the movable pad plate assemblies move outward to withdraw, the lower die plate moves down along the guide columns.

2. The injection mold for automatic assembly of LED light bars of claim 1, wherein: The base comprises two bottom plates arranged oppositely, and a space is arranged between the two bottom plates. The inner side of each bottom plate is provided with a first sliding groove. The power assembly comprises two pull rods respectively sliding in the first sliding grooves, a first air cylinder arranged at one end of the two bottom plates, and a first hinge assembly and a second hinge assembly. One end of the pull rod is fixedly connected with the piston of the first air cylinder, and the other end of the pull rod is hingedly connected with one end of the lower die plate through the first hinge assembly. One end of the second hinge assembly is connected with the piston of the first air cylinder, and the other end of the second hinge assembly is hingedly connected with the other end of the lower die plate.

3. The injection mold for automatic assembly of LED light bars of claim 2, wherein: The first hinge assembly comprises a first hinge, a first upper hinge shaft and a first lower hinge shaft horizontally penetrating the top end and the bottom end of the first hinge respectively. The two ends of the first upper hinge shaft are rotatably connected with the lower die plate. The two pull rods are respectively provided with a strip-shaped hole. The two ends of the first lower hinge shaft are rotatably connected in the two strip-shaped holes.

4. The injection mold for automatic assembly of LED light bars of claim 3, wherein: The two pull rods are respectively provided with a connecting hole oppositely. The two connecting holes are connected by a connecting shaft.

5. The injection mold for automatic assembly of LED light bars of claim 2, wherein: The second hinge assembly comprises a second hinge, a second upper hinge shaft and a second lower hinge shaft horizontally penetrating the top end and the bottom end of the second hinge respectively. The two ends of the second upper hinge shaft are rotatably connected with the lower die plate. The two ends of the second lower hinge shaft are rotatably connected with the two pull rods. The piston of the first air cylinder is connected with the middle part of the second lower hinge shaft.

6. The injection mold for automatic assembly of LED light bars of claim 2, wherein: Each movable pad plate assembly comprises a second air cylinder and a sliding block driven by the second air cylinder. The lower die plate is provided with a second sliding groove. The sliding block slides in the second sliding groove. When the lower die plate moves up along the guide columns, the sliding block moves inward to pad the bottom of the lower die plate.

7. The injection mold for automatic assembly of LED light bars of claim 6, wherein: The cross section of the sliding block is L-shaped. The L-shaped sliding block comprises a horizontal part sliding in the second sliding groove and a vertical part. The height of the horizontal part is equal to or less than the depth of the second sliding groove.

8. The injection mold for automatic assembly of LED light bars of claim 2, wherein: The two ends of the lower die plate are respectively outwardly connected with connecting ears. The first hinge assembly and the second hinge assembly are respectively hingedly connected with the connecting ears.

9. The injection mold for automatic assembly of LED light bars of claim 2, wherein: The guide columns are four, arranged at the four corners of the base. The four corners of the lower die plate are sleeved on the four guide columns.

10. The injection mold for automatic assembly of LED light bars of claim 2, wherein: The rack comprises a bottom base, a plurality of support rods arranged on the bottom base, and a top plate arranged on the top of the plurality of support rods, the lower die assembly is arranged on the bottom base, the lower die plate assembly is arranged on the bottom of the top plate, the bottom base is located below the LED light bar automatic assembly production line, and the support rods are penetrated out of the LED light bar automatic assembly production line.

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