Cutting device for backlight module production

Abstract

The utility model relates to the technical field of backlight module production, and discloses a cutting device for backlight module production, which comprises a workbench, the top of the workbench is fixedly connected with two mounting boxes, the interiors of the mounting boxes are rotatably connected with rotating rods, the outer sides of the rotating rods are fixedly connected with cylindrical gears, and the outer sides of the cylindrical gears are fixedly connected with the rotating rods. First rack plates are slidably connected into the mounting box, second rack plates are slidably connected into the mounting box, and pressing plates are fixedly connected to the close sides of the two second rack plates. According to the utility model, the backlight module is flatly laid on the top of the workbench, and an electric push rod is started to contract, so that a connecting plate pulls two rack plates I to move and drives a cylindrical gear to rotate, the cylindrical gear enables a rack plate II to drive a pressing plate to move downwards, and at the moment, a pressing roller can roll the surface of the backlight module to be flat; and the pressing plate can tightly press the backlight film set, and then the hydraulic cylinder is started to enable the cutting knife to penetrate through the cutting groove to cut the backlight film set.

Description

Technical Field

[0001] The utility model relates to the technical field of backlight film group production devices, in particular to a cutting device for backlight film group production. Background Art

[0002] The backlight film set is one of the key components of the LCD panel. Its function is to provide sufficient and evenly distributed light sources for the LCD so that it can display images normally. It is usually composed of light sources, light guide plates, optical films, plastic frames, etc. Among them, the light source can be a cold cathode fluorescent lamp, light-emitting diode, etc.; the light guide plate is used to guide the light emitted by the light source to the back of the LCD; the optical film can adjust the brightness and color of the light; the plastic frame is used to fix and protect the entire backlight film set.

[0003] The backlight film group in the prior art is very long after production and cannot be directly assembled and used. It needs to be cut into suitable lengths. However, the existing equipment usually cuts the backlight film group directly, which inevitably leads to wrinkles or tilted cuts, resulting in an increase in the defective rate. Therefore, the technology in the field proposes a cutting device for backlight film group production to solve the above problem. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a cutting device for backlight film group production, aiming to improve the problem in the prior art that wrinkles or tilted cuts will inevitably appear when the backlight film group is cut into suitable lengths after production, resulting in an increase in the defective rate.

[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a cutting device for backlight film group production, comprising a workbench, the top of the workbench is fixedly connected to two installation boxes, the interior of the installation box is rotatably connected to a rotating rod, the outer side of the rotating rod is fixedly connected to a cylindrical gear, the interior of the installation box is slidably connected to a rack plate 1, the interior of the installation box is slidably connected to a rack plate 2, the adjacent sides of the two rack plates 2 are fixedly connected to a pressure plate, a cutting groove is provided inside the pressure plate, an electric push rod is installed on the top of the workbench, the output end of the electric push rod is fixedly connected to a connecting plate, the outer side of the rack plate 1 is fixedly connected to a connecting rod, the adjacent ends of the two connecting rods are rotatably connected to a pressure roller, the tops of the two installation boxes are fixedly connected to an assembly frame, and the bottom of the assembly frame is installed with a tool changing assembly.

[0006] Furthermore, the tool changing assembly comprises a hydraulic cylinder, the top of the hydraulic cylinder is fixedly connected to the bottom of the assembly frame, and the output end of the hydraulic cylinder is fixedly connected to a mounting block.

[0007] Furthermore, two positioning grooves are provided on both sides of the inner wall of the installation block, and an assembly block is slidably connected to the inner side of the installation block.

[0008] Furthermore, two positioning bars are fixedly connected to both sides of the exterior of the assembly block, and the exterior sides of the positioning bars are slidably connected to the interior sides of the positioning grooves.

[0009] Furthermore, a cutting knife is fixedly connected to the bottom of the assembly block, and slots are provided on both sides of the outside of the assembly block.

[0010] Furthermore, two cavities are provided inside the mounting block, and a locking rod is slidably connected to the opening of the cavity, a sliding ring is fixedly connected to the outer side of the locking rod, and one end of the locking rod is engaged in the inside of the slot.

[0011] Furthermore, a spring is sleeved on the outside of the locking rod, one end of the spring is fixedly connected to the inner wall of the cavity, and the other end of the spring is fixedly connected to the outer side of the sliding ring.

[0012] Furthermore, the outer side of the connecting plate is fixedly connected to one end of the two rack plates 1, and the outer side of the cylindrical gear is meshingly connected to the outer sides of the rack plate 1 and the rack plate 2 at the same time.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, the backlight film group is laid flat on the top of the workbench, and the electric push rod is started to shrink, so that the connecting plate pulls the two rack plates 1 to move, and drives the cylindrical gear to rotate. The cylindrical gear will make the rack plate 2 drive the pressure plate to move downward. At this time, the pressure roller will roll the surface of the backlight film group flat, and the pressure plate will press the backlight film group tightly. Then the hydraulic cylinder is started to make the installation block drive the assembly block to move downward, so that the cutting knife will pass through the cutting groove to cut the backlight film group.

[0015] 2. In the utility model, by pulling two pull rings, one end of the locking rod is pulled out from the inside, thereby releasing the restriction on the assembly block. In this way, the assembly block can be removed from the inner side of the mounting block. Compared with the traditional bolt fastening method, which requires the use of other auxiliary tools for disassembly, replacement is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of a cutting device for producing a backlight film group proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of a mounting box of a cutting device for backlight film group production proposed by the utility model;

[0018] Figure 3This is a schematic diagram of the mounting block structure of a cutting device for backlight film group production proposed by the utility model;

[0019] Figure 4 This is a cross-sectional view of a mounting block of a cutting device for backlight film group production proposed by the utility model.

[0020] Legend:

[0021] 1. Workbench; 2. Mounting box; 3. Rotating rod; 4. Cylindrical gear; 5. Rack plate 1; 6. Rack plate 2; 7. Pressing plate; 8. Cutting groove; 9. Electric push rod; 10. Connecting plate; 11. Connecting rod; 12. Pressing roller; 13. Assembly frame; 14. Hydraulic cylinder; 15. Mounting block; 16. Positioning groove; 17. Assembly block; 18. Cutting knife; 19. Positioning strip; 20. Locking rod; 21. Sliding ring; 22. Spring; 23. Slot. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Reference Figure 1-Figure 3The utility model provides an embodiment: a cutting device for backlight film group production, including a workbench 1, a groove is provided on the top of the workbench 1, and a groove is provided just below the cutting groove 8 for convenient cutting. Two mounting boxes 2 are fixedly connected to the top of the workbench 1, and an opening is provided on the outer side of the mounting box 2 for convenient movement of the connecting rod 11. The interior of the mounting box 2 is rotatably connected with a rotating rod 3, and the outer side of the rotating rod 3 is fixedly connected with a cylindrical gear 4. The interior of the mounting box 2 is slidably connected with a rack plate 1 5, and the interior of the mounting box 2 is slidably connected with a rack plate 2 6. The adjacent sides of the two rack plates 2 6 are fixedly connected with a pressing plate 7, and a cutting groove 8 is provided inside the pressing plate 7. An electric push rod 9 is installed on the top of the workbench 1, and the output end of the electric push rod 9 is fixedly connected with a connecting plate 10. The rack plate 1 5 The outer side is fixedly connected with a connecting rod 11, and the proximal ends of the two connecting rods 11 are rotatably connected with a pressure roller 12, so that the backlight film group is spread flat on the top of the workbench 1 and stuffed under the pressure roller 12, and then the electric push rod 9 is started to shrink, so that the connecting plate 10 pulls the two rack plates 1 5 to move, and drives the cylindrical gear 4 to rotate, and the cylindrical gear 4 will make the rack plate 2 6 drive the pressure plate 7 to move downward. At this time, the pressure roller 12 will roll the surface of the backlight film group flat, and the pressure plate 7 will press the backlight film group, and then start the hydraulic cylinder 14 to make the mounting block 15 drive the assembly block 17 to move downward, so that the cutting knife 18 will pass through the cutting groove 8 to cut the backlight film group, and the top of the two mounting boxes 2 is fixedly connected with an assembly frame 13, and the bottom of the assembly frame 13 is installed with a tool changing component.

[0024] Reference Figure 2-Figure 4 The tool changing assembly includes a hydraulic cylinder 14, the top of which is fixedly connected to the bottom of the assembly frame 13, the output end of the hydraulic cylinder 14 is fixedly connected to a mounting block 15, two positioning grooves 16 are provided on both sides of the inner wall of the mounting block 15, an assembly block 17 is slidably connected to the inner side of the mounting block 15, two positioning bars 19 are fixedly connected to the outer sides of the assembly block 17, the outer side of the positioning bar 19 is slidably connected to the inner side of the positioning groove 16, a cutting knife 18 is fixedly connected to the bottom of the assembly block 17, a card slot 23 is provided on both sides of the outer side of the assembly block 17, two cavities are provided inside the mounting block 15, and a locking rod 20 is slidably connected at the opening of the cavity, and the locking rod 2 0 is fixedly connected with a sliding ring 21, one end of the locking rod 20 is engaged in the inside of the slot 23, and the other end of the locking rod 20 is fixedly connected with a pull ring. The outer sleeve of the locking rod 20 is provided with a spring 22, one end of the spring 22 is fixedly connected to the inner wall of the cavity, and the elastic force of the spring 22 can make the sliding ring 21 drive the locking rod 20 to reset quickly, and the other end of the spring 22 is fixedly connected to the outer side of the sliding ring 21. When the cutting knife 18 needs to be replaced, the two pull rings can be pulled at the same time to pull one end of the locking rod 20 out of the inside of the slot 23, thereby releasing the restriction on the assembly block 17, so that the assembly block 17 can be removed from the inner side of the mounting block 15, and the replacement is more convenient.

[0025] Reference Figure 1-Figure 3 The outer side of the connecting plate 10 is fixedly connected to one end of the two rack plates 1 5, and the outer side of the cylindrical gear 4 is meshed with the outer sides of the rack plates 1 5 and 2 6 at the same time. The rotation of the cylindrical gear 4 can make the rack plates 1 5 and 2 6 move simultaneously.

[0026] Working principle: First, lay the backlight film group flat on the top of the workbench 1 and stuff it under the pressure roller 12, then start the electric push rod 9 to shrink, so that the connecting plate 10 pulls the two rack plates 1 5 to move, and drives the cylindrical gear 4 to rotate, and the cylindrical gear 4 will make the rack plate 2 6 drive the pressure plate 7 to move downward, at this time the pressure roller 12 will roll the surface of the backlight film group flat, and the pressure plate 7 will press the backlight film group, and then start the hydraulic cylinder 14 to make the mounting block 15 drive the assembly block 17 to move downward, so that the cutting knife 18 will pass through the cutting groove 8 to cut the backlight film group. When the cutting knife 18 needs to be replaced, the two pull rings can be pulled at the same time to pull one end of the locking rod 20 out of the inside of the slot 23 to release the restriction on the assembly block 17. In this way, the assembly block 17 can be removed from the inner side of the mounting block 15, which is more convenient to replace.

[0027] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cutting device for backlight film assembly production, comprising a workbench (1), characterized in that: The top of the workbench (1) is fixedly connected to two installation boxes (2), the interior of the installation box (2) is rotatably connected to a rotating rod (3), the outer side of the rotating rod (3) is fixedly connected to a cylindrical gear (4), the interior of the installation box (2) is slidably connected to a rack plate 1 (5), the interior of the installation box (2) is slidably connected to a rack plate 2 (6), the adjacent sides of the two rack plates 2 (6) are fixedly connected to a pressure plate (7), a cutting groove (8) is provided inside the pressure plate (7), an electric push rod (9) is installed on the top of the workbench (1), the output end of the electric push rod (9) is fixedly connected to a connecting plate (10), the outer side of the rack plate 1 (5) is fixedly connected to a connecting rod (11), the adjacent ends of the two connecting rods (11) are rotatably connected to a pressure roller (12), the tops of the two installation boxes (2) are fixedly connected to an assembly frame (13), and a tool changing assembly is installed at the bottom of the assembly frame (13).

2. The cutting device for producing a backlight film assembly according to claim 1, characterized in that: The tool changing assembly comprises a hydraulic cylinder (14), the top of the hydraulic cylinder (14) is fixedly connected to the bottom of the assembly frame (13), and the output end of the hydraulic cylinder (14) is fixedly connected to a mounting block (15).

3. The cutting device for producing a backlight film assembly according to claim 2, characterized in that: Two positioning grooves (16) are provided on both sides of the inner wall of the installation block (15), and an assembly block (17) is slidably connected to the inner side of the installation block (15).

4. The cutting device for producing a backlight film assembly according to claim 3, characterized in that: Two positioning strips (19) are fixedly connected to both sides of the outside of the assembly block (17), and the outer sides of the positioning strips (19) are slidably connected to the inner sides of the positioning grooves (16).

5. The cutting device for producing backlight film assembly according to claim 4, characterized in that: A cutting knife (18) is fixedly connected to the bottom of the assembly block (17), and slots (23) are provided on both sides of the outside of the assembly block (17).

6. The cutting device for producing backlight film groups according to claim 5, characterized in that: Two cavities are provided inside the mounting block (15), and a locking rod (20) is slidably connected to the openings of the cavities. A sliding ring (21) is fixedly connected to the outside of the locking rod (20), and one end of the locking rod (20) is engaged in the inside of the slot (23).

7. The cutting device for producing backlight film groups according to claim 6, characterized in that: The lock rod (20) is sleeved with a spring (22) on its exterior, one end of the spring (22) is fixedly connected to the inner wall of the cavity, and the other end of the spring (22) is fixedly connected to the outer side of the sliding ring (21).

8. The cutting device for producing a backlight film assembly according to claim 1, characterized in that: The outer side of the connecting plate (10) is fixedly connected to one end of the two rack plates (5), and the outer side of the cylindrical gear (4) is meshingly connected to the outer sides of the rack plate (5) and the rack plate (6).

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