Oil cylinder structure capable of driving mold core to rotate and pulling core

Abstract

The utility model relates to the technical field of injection molds, in particular to an oil cylinder structure capable of driving mold cores to rotate and pulling cores, which comprises a bottom plate and a top plate, the bottom plate and the top plate are oppositely arranged, the bottom plate can move, a rear mold core A and a rear mold core B are arranged in the bottom plate, a front mold core A and a front mold core B are arranged in the top plate, and the front mold core A and the front mold core B are arranged in the top plate. A sliding block A, a sliding block B and a sliding block C which are matched with the rear mold core A and the front mold core A are arranged in the rear mold core A and the front mold core A. The sliding block A, the sliding block B and the sliding block C can move, and a first mold cavity closed area of a first product can be formed among the rear mold core A, the front mold core A, the sliding block A, the sliding block B and the sliding block C. A rear mold core whole M which can be connected with the rear mold core A and can form a whole structure is arranged in the bottom plate, an ejector plate which can move up and down is arranged below the bottom plate, and a first oil cylinder assembly which can be used for driving the ejector plate to move up and down is arranged outside the bottom plate.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an oil cylinder structure which drives a mold core to rotate and perform a core pulling action. Background Art

[0002] This product is a cover for the high-mounted brake light. The high-mounted brake light is typically located in the center of the rear of a vehicle. It works in conjunction with other lighting devices, such as brake lights, width marker lights, and reverse lights, to provide drivers with comprehensive driving safety. At night or in inclement weather, the high brightness and visibility of the high-mounted brake light help other vehicles more easily detect changes in the vehicle ahead, thereby reducing the risk of accidents.

[0003] After the high-mounted brake light is installed on the vehicle, it needs to be sealed. If the sealing effect is not good, it is easy to cause the LED circuit inside to short-circuit, causing driving risks. The quality of the sealing effect depends on the product quality of the cover.

[0004] The high-mounted brake light cover measures 210*200*44mm (note: 44 is the mold height in the demolding direction). Made of ABS+TPE, it utilizes a two-shot mold structure and two-shot injection molding. The soft rubber primarily serves as a seal. The front and rear mold cores serve as inserts, and the mold is a two-outlet (1+1) configuration. A needle valve hot runner system is used on the HT530-ton injection molding machine. The Green column dimensions are 1170*700*(400-910)mm (400-910 is the mold thickness).

[0005] Currently, there are many common mold structures that rotate the mold core, such as a hydraulic cylinder ejection + motor rotation structure, and there are also injection molding machines specifically designed for this type of mold (all operations are integrated into the injection molding machine). This type of equipment requires additional special equipment, which greatly increases the cost. Therefore, we propose a hydraulic cylinder structure that drives the mold core to rotate and perform core pulling. Utility Model Content

[0006] (1) Technical problems solved

[0007] In view of the deficiencies of the prior art, the present invention provides an oil cylinder structure that drives the mold core to rotate and perform core pulling action, thereby solving the problems raised in the above-mentioned background technology.

[0008] (2) Technical solution

[0009] In order to achieve the above purpose, the utility model is implemented through the following technical solutions: a cylinder structure that drives the mold core to rotate and perform core pulling action, including a bottom plate and a top plate, the bottom plate and the top plate are relatively arranged and the bottom plate can move, the bottom plate is provided with a rear mold core A and a rear mold core B, the top plate is provided with a front mold core A and a front mold core B, the rear mold core A and the front mold core A are provided with a slider A, a slider B and a slider C that match the rear mold core A and the front mold core A, the slider A, the slider B and the slider C are all able to move, the rear mold core A, the front mold core A, the slider A, A first mold cavity closed area of product 1 can be formed between slider B and slider C, and a rear mold core integral body M that can be connected to the rear mold core A and can form an integral structure is provided in the bottom plate, and a pin plate that can be displaced up and down is provided below the bottom plate, and a first cylinder assembly that can be used to drive the pin plate to move up and down is provided on the outside of the bottom plate, and a rotating rod that can drive the rear mold core integral body M to rotate is provided in the pin plate, and the rear mold core integral body M and the rotating rod can move synchronously, and a second cylinder assembly that can be connected to the rotating rod and can drive the rotating rod to rotate is provided in the bottom plate.

[0010] Furthermore, the first cylinder assembly includes a pin plate driving cylinder, a lower code template is provided below the pin plate and the pin plate driving cylinder is installed in the lower code template, and the pin plate driving cylinder can drive the pin plate to move up and down.

[0011] Furthermore, the ejector plate driving cylinder is symmetrically arranged at both ends of the lower code template, the lower code template is provided with a support column which is hollowly arranged with the ejector plate and the support column is installed in the bottom plate, the ejector plate is provided with a limit block which can contact the bottom plate, and the bottom plate is provided with a guide bar which can guide the synchronous movement of the rear mold core M and rotation, and the guide bar extends upward to the top plate.

[0012] Furthermore, the ejector plate is provided with a rotatable connecting block, the rotating rod is installed in the connecting block, the second cylinder assembly includes a gear, the gear is installed in the rotating rod, the base plate is provided with a cylinder connected to the base plate, and the output end of the cylinder is installed with a rack that can drive the gear to rotate.

[0013] Furthermore, the ejector plate is provided with a connecting block fixing block that can be used to position and install the connecting block, a connecting block bearing is provided between the connecting block fixing block and the connecting block, the top end of the ejector plate is provided with a guide sleeve that can be connected to the base plate, the base plate is provided with a wear-resistant ring that can protect the gear, the base plate is provided with a cylinder fixing block that can position and install the oil cylinder, the output end of the oil cylinder is connected to the rack connecting block that can lock and fix the rack, and the base plate is provided with a guide that can guide the movement of the rack.

[0014] Furthermore, a protruding block is provided on the inner circumference of the gear, and a long groove matching the protruding block is provided on the surface of the rotating rod.

[0015] Furthermore, the top plate is provided with an inclined guide column A connected to the top plate and capable of driving the slider A to move, the bottom plate is provided with an inclined guide column B connected to the bottom plate and capable of driving the slider B to move, and the front mold core A is provided with an inclined guide column C connected to the front mold core A and capable of driving the slider C to move.

[0016] Furthermore, the top plate is provided with a shovel A connected to the top plate and capable of positioning and locking the inclined guide column A, the front mold A is provided with a shovel B connected to the front mold A and capable of positioning and locking the inclined guide column C, the outer side of the bottom plate is provided with a square iron connected to the bottom plate, the bottom end of the inclined guide column B is in contact with the square iron, and wear-resistant plates are provided between the shovel A and the slider A, and between the shovel B and the slider B.

[0017] Furthermore, the rear mold core B in the bottom plate contacts the product one on the rear mold core A and can cooperate with the front mold core B in the top plate to form a second mold cavity closed area for the product two.

[0018] In this solution, after the mold is opened, the ejector plate drives the hydraulic cylinder to move the ejector plate forward. This also moves the rotating rod and the rear mold core M, which are fixed to the ejector plate, forward along the guide strips until the stop block contacts the bottom plate. At the same time, the ejector plate stops moving. At the same time, the height of the rear mold core M exceeds the height of the guide strips. At this point, the hydraulic cylinder drives the rack backward, and the rack drives the gear to rotate 180° around the center of the mold. At this point, the rear mold core M and the product (I) rotate 180° together. The ejector plate then drives the hydraulic cylinder to move the ejector plate and the rear mold core M backward. To ensure mold accuracy, the rear mold core M and the product (I) fixed to it must move backward along the guide strips until the ejector plate contacts the lower mold plate, the rear mold core M is fully in contact with the bottom plate, and the product (I) contacts the rear mold core B. At this point, the mold rotation is complete, and the mold can be closed for injection molding. The action in this solution is simple: the hydraulic cylinder core pulling action.

[0019] The oil cylinder structure that drives the mold core to rotate and perform core pulling action can meet the needs of most two-color injection molding equipment through the mutual cooperation of structures such as the first oil cylinder assembly and the second oil cylinder assembly, and also avoids the need to add additional special equipment, and has strong mold matching. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the cross-sectional structure of the utility model product;

[0021] Figure 2 It is a cross-sectional view of the mold of the utility model in the mold closing state;

[0022] Figure 3 This is a schematic diagram of the mold structure after the product of the utility model is ejected;

[0023] Figure 4 This is a schematic structural diagram of the first oil cylinder assembly and the second oil cylinder assembly of the utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the rack motion of the utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the second oil cylinder assembly disassembled in the utility model;

[0026] Figure 7 This is a cross-sectional view of the first injection mold closing state of the utility model;

[0027] Figure 8 This is a cross-sectional view of the second injection mold closing state of the utility model.

[0028] In the figure: 4, top plate; 5, bottom plate; 6, ejector plate; 7, lower code template; 12, front mold core A; 13, front mold core B; 14, rear mold core A; 20, guide bar; 22, ejector plate driving cylinder; 24, support column; 33, square iron; 34, guide sleeve; 35, rotating rod; 37, gear; 38, rack; 40, wear-resistant ring; 41, connecting block; 43, connecting block fixing block; 44, connecting block bearing; 45, slider B; 46, inclined guide column B; 47, wear-resistant plate; 48, slider A; 49. Shovel A; 50. Inclined guide column A; 52. Guide; 54. Rack connecting block; 55. Cylinder fixing block; 56. Cylinder; 66. Slider C; 67. Inclined guide column C; 68. Limit block; 69. Rear mold core B; 70. Shovel B; 79. First mold cavity closed area; 80. Product one; 81. Rear mold core as a whole M; 82. Second cylinder assembly; 83. Product two; 85. Second mold cavity closed area; 92. Long groove; 93. Protruding block; 94. First cylinder assembly. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] See also Figures 1 to 7The utility model provides a technical solution: a cylinder structure that drives the mold core to rotate and perform core pulling action, including a bottom plate 5 and a top plate 4, the rear mold core B69 in the bottom plate 5 contacts the product 1 80 on the rear mold core A14 and can cooperate with the front mold core B13 in the top plate 4 to form a second mold cavity closed area 85 of the product 2 83, the top plate 4 is provided with an inclined guide column A50 connected to the top plate 4 and capable of driving the slider A48 to move, the bottom plate 5 is provided with an inclined guide column B46 connected to the bottom plate 5 and capable of driving the slider B45 to move, the front mold core A12 is provided with an inclined guide column C67 connected to the front mold core A12 and capable of driving the slider C66 to move, the top plate 4 is provided with a inclined guide column A50 connected to the top plate 4 and capable of positioning A shovel A49 is provided in the front mold A12, which is connected to the front mold A12 and can position and lock the inclined guide column C67. A square iron 33 is provided on the outer side of the bottom plate 5, and the bottom end of the inclined guide column B46 is in contact with the square iron 33. Wear-resistant plates 47 are provided between the shovel A49 and the slider A48, and between the shovel B70 and the slider B45. The bottom plate 5 and the top plate 4 are arranged relative to each other and the bottom plate 5 can move. A rear mold A14 and a rear mold B69 are provided in the bottom plate 5, and a front mold A12 and a front mold B13 are provided in the top plate 4. Sliders A48, B45 and C66 that cooperate with the rear mold A14 and the front mold A12 are provided in the rear mold A14 and the front mold A12. Sliders A48 and B45 and slider C66 can move, and the first mold cavity closed area 79 of product 180 can be formed between the rear mold core A14, the front mold core A12, the slider A48, the slider B45 and the slider C66. The bottom plate 5 is provided with a rear mold core as a whole M81 that can be connected to the rear mold core A14 and can form an integral structure. A pin plate 6 that can be displaced up and down is provided below the bottom plate 5. The outside of the bottom plate 5 is provided with a first cylinder assembly 94 that can be used to drive the pin plate 6 to move up and down. The first cylinder assembly 94 includes a pin plate driving cylinder 22. A lower code template 7 is provided below the pin plate 6 and the pin plate driving cylinder 22 is installed in the lower code template 7. The pin plate driving cylinder 22 can drive the pin plate 6 to move up and down. The pin plate driving cylinder 22 is symmetrically arranged. At both ends of the lower code template 7, the lower code template 7 is provided with a support column 24 that is set in an empty sleeve with the ejector plate 6 and the support column 24 is installed in the bottom plate 5, and the ejector plate 6 is provided with a limit block 68 that can contact the bottom plate 5, and the bottom plate 5 is provided with a guide bar 20 that can guide the synchronous movement of the rear mold core M81 and the rotation 35, and the guide bar 20 extends upward to the top plate 4, and the ejector plate 6 is provided with a rotating rod 35 that can drive the rear mold core M81 to rotate. The rear mold core M81 and the rotating rod 35 can move synchronously, and the bottom plate 5 is provided with a second cylinder assembly 82 that can be connected to the rotating rod 35 and can drive the rotating rod 35 to rotate. The ejector plate 6 is provided with a rotatable connecting block 41, and the rotating rod 35 is installed in the connecting block 41.The second cylinder assembly 82 includes a gear 37, which is installed in the rotating rod 35. The base plate 5 is provided with a cylinder 56 connected to the base plate 5. The output end of the cylinder 56 is provided with a rack 38 that can drive the gear 37 to rotate. The ejector plate 6 is provided with a connecting block fixing block 43 that can be used to position and install the connecting block 41. A connecting block bearing 44 is provided between the connecting block fixing block 43 and the connecting block 41. The top of the ejector plate 6 is hollowly sleeved with a guide sleeve 34 that can be connected to the base plate 5. The base plate 5 is provided with a wear-resistant ring 40 that can protect the gear 37. The base plate 5 is provided with a cylinder fixing block 55 that can position and install the cylinder 56. The output end of the cylinder 56 is connected to the rack connecting block 54 that can lock and fix the rack 38. The base plate 5 is provided with a guide 52 that can guide the movement of the rack 38. A protruding block 93 is provided on the inner circumference of the gear 37, and a long groove 92 that matches the protruding block 93 is provided on the surface of the rotating rod 35. ,

[0031] In the description of this specification, the terms "connect", "install", "fix", "set", etc. are understood in a broad sense. For example, "connection" can be a fixed connection or an indirect connection through an intermediate component without affecting the relationship between components and the technical effect. It can also be an integral connection or a partial connection. As in this example, for ordinary technicians in this field, the specific meanings of the above terms in this utility model or utility model can be understood according to specific circumstances.

[0032] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cylinder structure for driving a mold core to rotate and perform a core pulling action, comprising a bottom plate (5) and a top plate (4), wherein the bottom plate (5) and the top plate (4) are arranged relative to each other and the bottom plate (5) can move, and is characterized in that: The bottom plate (5) is provided with a rear mold core A (14) and a rear mold core B (69), the top plate (4) is provided with a front mold core A (12) and a front mold core B (13), the rear mold core A (14) and the front mold core A (12) are provided with a slider A (48), a slider B (45) and a slider C (66) that match the rear mold core A (14) and the front mold core A (12), the slider A (48), the slider B (45) and the slider C (66) are all movable, and a first mold cavity closed area (79) of a product one (80) can be formed between the rear mold core A (14), the front mold core A (12), the slider A (48), the slider B (45) and the slider C (66), The bottom plate (5) is provided with a rear mold core integral body M (81) that can be connected to the rear mold core A (14) and can form an integral structure. A pin plate (6) that can be moved up and down is provided below the bottom plate (5). A first oil cylinder assembly (94) that can be used to drive the pin plate (6) to move up and down is provided on the outside of the bottom plate (5). A rotating rod (35) that can drive the rear mold core integral body M (81) to rotate is provided in the pin plate (6). The rear mold core integral body M (81) and the rotating rod (35) can move synchronously. A second oil cylinder assembly (82) that can be connected to the rotating rod (35) and can drive the rotating rod (35) to rotate is provided in the bottom plate (5).

2. The oil cylinder structure for driving the mold core to rotate and perform core pulling according to claim 1, characterized in that: The first oil cylinder assembly (94) includes a pin plate driving oil cylinder (22), a lower code template (7) is provided below the pin plate (6), and the pin plate driving oil cylinder (22) is installed in the lower code template (7), and the pin plate driving oil cylinder (22) can drive the pin plate (6) to move up and down.

3. The oil cylinder structure for driving the mold core to rotate and perform core pulling according to claim 2, characterized in that: The ejector plate driving oil cylinder (22) is symmetrically arranged at both ends of the lower code template (7); the lower code template (7) is provided with a support column (24) which is hollowly arranged with the ejector plate (6), and the support column (24) is installed in the bottom plate (5); the ejector plate (6) is provided with a limit block (68) which can contact the bottom plate (5); the bottom plate (5) is provided with a guide bar (20) which can guide the synchronous movement of the rear mold core M (81) and the rotation (35), and the guide bar (20) extends upward to the ejector plate (4).

4. The oil cylinder structure for driving the mold core to rotate and perform core pulling according to claim 1, characterized in that: The ejector plate (6) is provided with a rotatable connecting block (41), the rotating rod (35) is installed in the connecting block (41), the second oil cylinder assembly (82) includes a gear (37), the gear (37) is installed in the rotating rod (35), the bottom plate (5) is provided with an oil cylinder (56) connected to the bottom plate (5), and the output end of the oil cylinder (56) is provided with a rack (38) that can drive the gear (37) to rotate.

5. The oil cylinder structure for driving the mold core to rotate and perform core pulling according to claim 4, characterized in that: The ejector plate (6) is provided with a connecting block fixing block (43) that can be used to position and install the connecting block (41), a connecting block bearing (44) is provided between the connecting block fixing block (43) and the connecting block (41), the top end of the ejector plate (6) is hollowly sleeved with a guide sleeve (34) that can be connected to the base plate (5), the base plate (5) is provided with a wear-resistant ring (40) that can protect the gear (37), the base plate (5) is provided with an oil cylinder fixing block (55) that can position and install the oil cylinder (56), the output end of the oil cylinder (56) is connected to a rack connecting block (54) that can lock and fix the rack (38), and the base plate (5) is provided with a guide (52) that can guide the movement of the rack (38).

6. The oil cylinder structure for driving the mold core to rotate and perform core pulling according to claim 5, characterized in that: A protruding block (93) is provided on the inner circumference of the gear (37), and a long groove (92) adapted to the protruding block (93) is provided on the surface of the rotating rod (35).

7. The oil cylinder structure for driving the mold core to rotate and perform core pulling according to claim 1, characterized in that: The top plate (4) is provided with an inclined guide column A (50) connected to the top plate (4) and capable of driving the slider A (48) to move, the bottom plate (5) is provided with an inclined guide column B (46) connected to the bottom plate (5) and capable of driving the slider B (45) to move, and the front mold core A (12) is provided with an inclined guide column C (67) connected to the front mold core A (12) and capable of driving the slider C (66) to move.

8. The oil cylinder structure for driving the mold core to rotate and perform core pulling according to claim 7, characterized in that: The top plate (4) is provided with a shovel A (49) connected to the top plate (4) and capable of positioning and locking the inclined guide column A (50); the front mold core A (12) is provided with a shovel B (70) connected to the front mold core A (12) and capable of positioning and locking the inclined guide column C (67); the outer side of the bottom plate (5) is provided with a square iron (33) connected to the bottom plate (5); the bottom end of the inclined guide column B (46) is in contact with the square iron (33); and wear-resistant plates (47) are provided between the shovel A (49) and the slider A (48) and between the shovel B (70) and the slider B (45).

9. The oil cylinder structure for driving the mold core to rotate and perform core pulling according to claim 1, characterized in that: The rear mold core B (69) in the bottom plate (5) contacts the product one (80) on the rear mold core A (14) and can cooperate with the front mold core B (13) in the top plate (4) to form a second mold cavity closed area (85) of the product two (83).

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