Injection mold for air conditioner shutter blades
By introducing a blocking rod structure into the injection mold, the problem of uneven ejection of plastic parts was solved, and the smooth ejection of air conditioner louver blades and the improvement of molding effect were achieved.
Patent Information
- Application Number
- CN202422654719.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-10-31
AI Technical Summary
When ejecting plastic parts from existing injection molds, the plastic parts tend to stick to the inclined ejection mold, resulting in poor ejection, deformation of the plastic parts, and poor molding effects.
A blocking rod structure is adopted. The blocking rod extends into the rear mold when the ejector pin and the forming inclined ejector block eject the air-conditioning louver blades, preventing the plastic parts from sticking to the forming inclined ejector block. The gap between the limiting protrusion and the limiting groove and the cooperation of the delay spring are used to control the synchronous movement of the blocking rod and the forming inclined ejector block to ensure the smooth ejection of the air-conditioning louver blades.
The smooth ejection of the air conditioner louver blades is achieved, deformation is avoided, and the molding effect of the plastic parts is improved.
Smart Images
Figure CN223369927U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of injection molds, in particular to an injection mold for air-conditioning louver blades. Background Art
[0002] Currently, when opening and ejecting plastic parts, existing injection molds use straight ejector pins and inclined ejector molds. When the straight ejector pins eject the plastic part, the straight ejector pin ejects the plastic part straight out. Parts of the plastic part can become stuck to the inclined ejector mold and move in the opposite direction. The inclined ejector mold then pulls the plastic part along with it, causing it to be ejected unsmoothly, become stuck in the mold, and deform, resulting in poor molding results. Therefore, the structure of existing injection molds needs further improvement. Utility Model Content
[0003] The utility model aims to provide an injection mold for air-conditioning louver blades, which has the advantages of easy ejection of plastic parts and good molding effect.
[0004] The purpose of this utility model is achieved in this way:
[0005] An injection mold for air-conditioning louver blades, comprising a base plate, an ejector mounting plate, a rear mold, a rear mold base and a front mold, wherein the rear mold comprises a rear mold and a rear mold base, the rear mold base is arranged on the front side of the base plate and fixedly connected to the base plate, the rear mold is arranged on the rear mold base, the back of the front mold is provided with a front molding groove, the front surface of the rear mold is provided with a rear molding groove corresponding to the position of the front molding groove, the front surface of the rear mold is provided with a plurality of inclined ejector molding grooves corresponding to the positions of the plurality of ejector rods, the inclined ejector molding grooves are connected to the rear molding grooves, the ejector mounting plate is horizontally slidably arranged between the base plate and the rear mold, a plurality of ejector pins are provided on the ejector mounting plate, the ejector cover plate is arranged on the front surface of the ejector mounting plate, the front end of the ejector pin passes through the ejector cover plate, the rear mold base and the rear mold in sequence horizontally and forwardly, and is characterized in that it also comprises a blocking rod, and a plurality of ejector pins are obliquely provided and arranged on the ejector cover plate. The rear ends of the plurality of ejector rods are rotatably connected to the ejector cover plate, and the front ends of the plurality of ejector rods are provided with a forming inclined eject block, which is slidably arranged in the inclined eject block in the inclined ejection groove. The forming inclined eject block is provided with a side forming groove, and the side forming groove is connected to the inclined eject block. The first end of the blocking rod is provided on the ejector cover plate, and the second end of the blocking rod extends forward horizontally and is located at the front side of the forming inclined eject block. The front end of the blocking rod is provided with a connecting slider, which is provided between the ejector mounting plate and the base plate, and a delay spring is provided between the connecting block and the rear surface of the ejector mounting plate. A limiting protrusion is provided on the side wall of the blocking rod, and the limiting protrusion is located between the front surface of the ejector mounting plate and the rear surface of the ejector cover plate. The front surface of the ejector mounting plate is provided with a limiting groove corresponding to the limiting protrusion. When the connecting slider is against the bottom plate, there is a gap between the limiting protrusion and the bottom surface of the limiting groove. The utility model utilizes a blocking rod to prevent the plastic part from adhering to the molding inclined ejector block and to prevent the two from moving synchronously. The blocking rod of the utility model also extends into the rear mold when the ejector pin and the molding inclined ejector block eject the air-conditioning louver blade. The blocking rod prevents the plastic part from adhering to the molding inclined ejector block and moves to one side with the molding inclined ejector block, thereby making the air-conditioning louver blade ejected smoothly without deformation, and the plastic part is separated from the molding inclined ejector block, thereby facilitating the ejection of the air-conditioning louver blade by the ejector pin and the molding inclined ejector block, and ejecting the air-conditioning louver blade smoothly.
[0006] The present invention can also be further improved as follows.
[0007] A small forming groove is provided on the side surface of the first end of the blocking rod, and the small forming groove is communicated with the front portion of the side forming groove.
[0008] The beneficial effects of the utility model are as follows:
[0009] The blocking rod is used to prevent the plastic part from adhering to the molding inclined ejector block and to prevent the two from moving synchronously. The blocking rod of the utility model also extends into the rear mold when the ejector pin and the molding inclined ejector block eject the air-conditioning louver blade. The blocking rod prevents the plastic part from adhering to the molding inclined ejector block and moves to one side with the molding inclined ejector block, thereby making the air-conditioning louver blade ejected smoothly without deformation. The plastic part is separated from the molding inclined ejector block, thereby facilitating the ejection of the air-conditioning louver blade by the ejector pin and the molding inclined ejector block. The ejection is smooth, and because there is a gap between the limiting protrusion and the bottom surface of the limiting groove, when the ejector pin, the molding inclined ejector block and the blocking rod eject the air-conditioning louver blade, the spring presses the blocking rod downward, so that the molding inclined ejector block and the blocking rod move asynchronously, the blocking rod is ejected with a delayed ejection, and the ejection speeds of the molding inclined ejector block and the blocking rod are inconsistent, the blocking rod will neither hit the molding inclined ejector block nor block the air-conditioning louver blade. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a structural schematic diagram of an injection mold for air-conditioning louver blades of the utility model.
[0011] Figure 2 It is a structural schematic diagram of the injection mold of the air conditioner louver blades of the utility model from another angle.
[0012] Figure 3 It is an exploded view of the injection mold of the air conditioner louver blades of the utility model.
[0013] Figure 4 It is a cross-sectional view of an injection mold for air-conditioning louver blades of the utility model.
[0014] Figure 5 The utility model is a structural schematic diagram of the injection mold of the air conditioner louver blade after omitting the front mold, the rear mold, the rear mold base, the ejector rod and the molding inclined ejector block.
[0015] Figure 6 The utility model is a structural schematic diagram of the injection mold of the air conditioner louver blade after omitting the front mold, the rear mold and the rear mold base.
[0016] Figure 7 The utility model is a top view of the injection mold of the air conditioner louver blade, omitting the front mold, the rear mold and the rear mold base.
[0017] Figure 8 yes Figure 7 side view.
[0018] Figure 9 yes Figure 7 Cross-sectional view at AA in the middle.
[0019] Figure 10 yes Figure 9 Enlarged view of point A in the middle.
[0020] Figure 11 yes Figure 7 Cross-sectional view at the middle BB.
[0021] Figure 12 yes Figure 7 Cross-sectional view at CC.
[0022] Figure 13 yes Figure 12 Enlarged view of point B in the middle.
[0023] Figure 14 It is a structural schematic diagram of the front mold of the utility model. DETAILED DESCRIPTION
[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0025] Example 1, as Figures 1 to 14 As shown, an injection mold for air-conditioning louver blades includes a base plate 3, an ejector mounting plate 5, a rear mold 2 and a front mold 1. The rear mold 2 includes a rear mold 23, a plurality of blocking rods 6 and a rear mold base 20. The rear mold base 20 is arranged on the front side of the base plate 3 and is fixedly connected to the base plate 3. The rear mold 23 is arranged on the rear mold base 20. The front mold 1 is provided with a glue inlet 11, a hot runner 13 and a glue outlet 12. The back of the front mold 1 is provided with a front molding groove 10. The front surface of the rear mold 23 is provided with a rear molding groove 22 corresponding to the position of the front molding groove 10. The front surface of the rear mold 23 is provided with a plurality of inclined top molding grooves 21 corresponding to the position of the plurality of ejector rods 8. The inclined top molding groove 21 is connected to the rear molding groove 22. The ejector mounting plate 5 is horizontally slidably arranged between the base plate 3 and the rear mold 23. A plurality of ejector pins 7 are provided on the ejector mounting plate 5, and an ejector cover plate 4 is provided on the front surface of the ejector mounting plate 5. The front ends of the ejector pins 7 extend horizontally forward and sequentially through the ejector cover plate 4, the rear mold base 20, and the rear mold 23. The utility model is characterized in that it also includes a blocking rod 6. A plurality of ejector pins 8 are obliquely provided and arranged on the ejector cover plate 4. The rear ends of the plurality of ejector pins 8 are rotatably connected to the ejector cover plate 4. The front ends of the plurality of ejector pins 8 are provided with a forming inclined ejector block 81. The forming inclined ejector block 81 is slidably provided in the inclined ejector forming groove 21. The forming inclined ejector block 81 is provided with a side forming groove 82, which is connected to the inclined ejector forming groove 21. The first end of the blocking rod 6 is provided on the ejector cover plate 4, and the second end of the blocking rod 6 extends horizontally forward and is located in front of the forming inclined ejector block 81. The structure of the front mold 1 of the present utility model is prior art, and its structure and working principle are not described in detail here.
[0026] As a more specific technical solution of the utility model.
[0027] A small molding groove 60 is provided on the side surface of the first end of the blocking rod 6 , and the small molding groove 60 is communicated with the front portion of the side molding groove 82 .
[0028] The inclined top forming groove 21 is an inclined groove.
[0029] A connecting slider 61 is provided at the front end of the blocking rod 6 . The connecting slider 61 is provided between the ejector mounting plate 5 and the bottom plate 3 . A delay spring 63 is provided between the connecting block and the rear surface of the ejector mounting plate 5 .
[0030] A limiting protrusion 62 is provided on the side wall of the blocking rod 6. The limiting protrusion 62 is located between the front surface of the ejector mounting plate 5 and the rear surface of the ejector cover plate 4. A limiting groove 65 is provided on the front surface of the ejector mounting plate 5 corresponding to the limiting protrusion 62. When the connecting slider 61 abuts against the bottom plate 3, a gap 64 exists between the limiting protrusion 62 and the bottom surface of the limiting groove 65.
[0031] A first clearance hole 51 is provided at the position of the ejector mounting plate 5 corresponding to the blocking rod 6, a second clearance hole 41 is provided at the position of the ejector cover plate 4 corresponding to the blocking rod 6, and a third clearance hole 29 is provided at the position of the rear mold base 20 corresponding to the blocking rod 6. The front end of the ejector 7 passes through the rear mold 23 horizontally forward through the second clearance hole 41, and the front end of the blocking rod 6 passes through the ejector mounting plate 5, the ejector cover plate 4, and the rear mold base 20 horizontally in sequence.
[0032] The air conditioner louver blade 9 of the present invention includes a horizontal arm 91 and a plurality of longitudinal arms 92 , and the plurality of longitudinal arms 92 are vertically connected to the horizontal arm 91 .
[0033] The working principle of this utility model is:
[0034] When the utility model is working, the front mold 1 and the rear mold 23 are closed, and the front molding groove 10 and the rear molding groove 22 are closed front and back. Then the molten plastic raw material is injected into the mold from the glue inlet 11, and then enters the hot runner to continue heating, and then flows from the glue outlet 12 to the front molding groove 10 and the rear molding groove 22, and then flows into the inclined top molding groove 21, the side molding groove 82 and the molding small groove 60. The molten plastic raw material begins to form and then cools. Then the front mold 1 and the rear mold 23 are opened. After that, the oil cylinder starts to drive the ejector mounting plate 5 and the ejector cover plate 4 to move forward, and the ejector 7 and the inclined top molding block start to eject the air conditioner louver blade 9. Since there is a gap 64 between the limiting protrusion 62 and the bottom surface of the limiting groove 65, the extension The delayed spring 63 still presses the connecting slider 61 and the blocking rod 6, and the blocking rod 6 does not move forward until there is no gap 64 between the limiting protrusion 62 and the limiting groove 65. The ejector mounting plate 5 drives the blocking rod 6 to move forward, and the blocking rod 6 extends forward into the inclined top forming groove 21. The blocking rod 6 just blocks the longitudinal arm 92 of the air-conditioning louver blade 9. The longitudinal arm 92 will no longer stick to the inclined top forming block, and the longitudinal arm 92 will not move to one side with the inclined top forming block. Therefore, the air-conditioning louver blade 9 of the utility model is ejected smoothly, the air-conditioning louver blade 9 is not deformed, and the plastic part is separated from the forming inclined top block 81, thereby facilitating the ejection of the ejector 7 and the forming inclined top block 81 to eject the air-conditioning louver blade 9 smoothly.
Claims
1. An injection mold for an air conditioner louver blade, comprising a base plate (3), an ejector pin mounting plate (5), a rear mold (2), a rear mold base (20), and a front mold (1), wherein the rear mold (2) comprises a rear mold (23) and a rear mold base (20), wherein the rear mold base (20) is arranged on the front side of the base plate (3) and is fixedly connected to the base plate (3), and the rear mold (23) is arranged on the rear mold base (20), and a front molding groove (10) is provided on the back side of the front mold (1), and a rear molding groove (22) is provided on the front surface of the rear mold (23) at a position corresponding to the front molding groove (10). ), a plurality of inclined top forming grooves (21) are provided on the front surface of the rear mold (23) corresponding to the positions of the plurality of ejector pins (8), the inclined top forming grooves (21) are connected to the rear forming grooves (22), the ejector mounting plate (5) is horizontally slidably arranged between the bottom plate (3) and the rear mold (23), a plurality of ejector pins (7) are provided on the ejector mounting plate (5), the ejector cover plate (4) is arranged on the front surface of the ejector mounting plate (5), the front end of the ejector pin (7) passes through the ejector cover plate (4), the rear mold base (20) and the rear mold (23) in sequence horizontally and forwardly, and is characterized in that, The invention also includes a blocking rod (6), a plurality of ejector rods (8) are arranged on the ejector cover plate (4) in an inclined manner, the rear ends of the plurality of ejector rods (8) are rotatably connected to the ejector cover plate (4), the front ends of the plurality of ejector rods (8) are provided with a forming inclined ejector block (81), the forming inclined ejector block (81) is slidably arranged in the inclined ejector forming groove (21), a side forming groove (82) is provided on the forming inclined ejector block (81), the side forming groove (82) is communicated with the inclined ejector forming groove (21), the first end of the blocking rod (6) is provided on the ejector cover plate (4), the second end of the blocking rod (6) extends horizontally forward and is located on the front side of the forming inclined ejector block (81), and the blocking rod (6) A connecting slider (61) is provided at the front end thereof, the connecting slider (61) is provided between the ejector mounting plate (5) and the bottom plate (3), a delay spring (63) is provided between the connecting block and the rear surface of the ejector mounting plate (5), a limiting protrusion (62) is provided on the side wall of the blocking rod (6), the limiting protrusion (62) is located between the front surface of the ejector mounting plate (5) and the rear surface of the ejector cover plate (4), a limiting groove (65) is provided on the front surface of the ejector mounting plate (5) corresponding to the limiting protrusion (62), and when the connecting slider (61) and the bottom plate (3) are in contact, a gap (64) exists between the limiting protrusion (62) and the bottom surface of the limiting groove (65).
2. The injection mold for air conditioner louver blades according to claim 1, characterized in that: A small forming groove (60) is provided on the side surface of the first end of the blocking rod (6), and the small forming groove (60) is communicated with the front portion of the side forming groove (82).