An injection mold

Abstract

The utility model discloses an injection mold, and relates to the technical field of molds. The injection mold comprises an upper mold body and a lower mold body, and also comprises: a base, wherein the upper end of the base is provided with two groups of support blocks near the bottom of the lower mold body, and the middle part of the base is provided with an auxiliary plate, a support plate and a guide column; an injection mold, through the setting of a ejection component, drives the active gear and the driven gear to mesh through the output end of a driving motor, further drives the outer side of a threaded barrel to rotate along a bearing seat, and at the same time, the inner part thereof rotates along the outer side of a supporting threaded rod, so that the threaded barrel is threadedly connected with the supporting threaded rod, drives the supporting threaded rod, the auxiliary plate and the supporting plate to move upward, and during the movement of the supporting plate, drives a plurality of groups of ejectors to slowly eject, thereby ejecting the plastic product, facilitating automatic unloading of the mold, and avoiding damage to the outer surface of the product.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to an injection mold. Background Art

[0002] Injection molds are tools for producing plastic products; they are also tools that give plastic products a complete structure and precise dimensions. Injection molding is a processing method used in mass production of certain parts with complex shapes. Specifically, it refers to the process of injecting heated and melted plastic into the mold cavity under high pressure by an injection molding machine, and then cooling and solidifying to obtain a molded product;

[0003] After injection molding is completed, the existing injection mold needs to use an ejector to eject the plastic product for unloading. However, when the ejector is driven, it is driven by the cylinder to rise and eject the material. Due to the large impact force, it is easy to damage the plastic product and affect the appearance of the plastic product. Therefore, the utility model proposes an injection mold, which can slowly raise the ejector to unload the plastic product without affecting its appearance. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an injection mold to solve the problems in the above-mentioned background technology.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: an injection mold, including an upper mold body and a lower mold body, and also includes:

[0006] A base, wherein the upper end of the base is provided with two groups of support blocks near the bottom of the lower mold body, the middle part of the base is provided with an auxiliary plate, a support plate and a guide column, and the middle parts of the auxiliary plate and the support plate are provided with guide holes adapted to the guide columns;

[0007] The ejector assembly includes an ejector pin, a movable hole, a supporting threaded rod, a threaded cylinder, a bearing seat, a driven gear, a driving motor arranged at the bottom of the base, and a driving gear arranged at the output end of the driving motor.

[0008] Furthermore, an injection mold further comprises:

[0009] The injection port is located in the middle of the upper mold body and extends through the upper mold body to the lower end of the upper mold body.

[0010] Furthermore, an injection mold further comprises:

[0011] The sleeves are four in number and are located at the corners of the upper mold body; the upper end of the lower mold body is connected with a positioning column that is adapted to the sleeves.

[0012] Furthermore, the number of the guide columns is four and they are distributed in an array, and both ends of the guide columns are respectively connected to the lower mold body and the base.

[0013] Furthermore, the number of the ejector pins is several groups, and the auxiliary plate, the support plate and the lower mold body are all provided with matching holes that match the ejector pins.

[0014] Furthermore, the movable hole is adapted to the supporting threaded rod, the supporting threaded rod is adapted to the threaded barrel, the bearing seats are in two groups and are symmetrically distributed, the driven gear is arranged in the middle of the threaded barrel, and the driven gear is meshed with the driving gear.

[0015] Furthermore, the driving motor is connected to the inside of the base via bolts, and a fixed connection is formed between the output end of the driving motor and the driving gear.

[0016] Compared with the above-mentioned background technology, the injection mold provided by the present application includes an upper mold body, a lower mold body, a base, an injection port, and, in order to achieve the slow discharge of plastic products, a driving motor drives the driving gear to engage with the driven gear, further drives the threaded barrel to rotate along the outer side of the supporting threaded rod, and then drives the supporting plate, the auxiliary plate and the ejector pin to push up, thereby slowly discharge the plastic products.

[0017] The utility model provides an injection mold. Compared with the prior art, it has the following beneficial effects:

[0018] An injection mold, through the setting of the ejection component, drives the active gear and the driven gear to mesh through the output end of the driving motor, further drives the outer side of the threaded barrel to rotate along the bearing seat, and at the same time, the inner part thereof rotates along the outer side of the supporting threaded rod, so that the threaded barrel and the supporting threaded rod are threadedly connected, driving the supporting threaded rod, the auxiliary plate and the supporting plate to move upward, and during the movement of the supporting plate, drives several groups of ejectors to slowly eject, thereby ejecting the plastic product, facilitating the automatic unloading of the mold, and avoiding damage to the outer surface of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of an injection mold;

[0020] Figure 2 This is a partial exploded view of an injection mold;

[0021] Figure 3 A top view of an injection mold;

[0022] Figure 4 For an injection mold Figure 3 Side cross-sectional view of AA.

[0023] In the figure: 1. upper mold body; 2. lower mold body; 3. base; 4. auxiliary plate; 5. support plate; 6. guide column; 7. injection port; 8. sleeve; 9. positioning column; 10. ejector assembly; 101. ejector pin; 102. moving hole; 103. supporting threaded rod; 104. threaded cylinder; 105. bearing seat; 106. driven gear; 107. driving motor; 108. driving gear. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1-4 The utility model provides a technical solution for an injection mold: an injection mold, comprising an upper mold body 1 and a lower mold body 2, and also comprising: a base 3, wherein the upper end of the base 3 is provided with two groups of support blocks near the bottom of the lower mold body 2, the middle part of the base 3 is provided with an auxiliary plate 4, a support plate 5 and a guide column 6, and the middle parts of the auxiliary plate 4 and the support plate 5 are provided with guide holes that are compatible with the guide column 6; a ejector assembly 10, wherein the ejector assembly 10 comprises an ejector pin 101, a moving hole 102, a supporting threaded rod 103, a threaded cylinder 104, a bearing seat 105, a driven gear 106, a driving motor 107 provided at the bottom of the base 3, and a driving gear 108 provided at the output end of the driving motor 107.

[0026] In addition, the injection port 7 is located in the middle of the upper mold body 1, and extends through the upper mold body 1 to the lower end of the upper mold body 1, so as to facilitate the injection molding of plastic products; the sleeve 8, the number of the sleeve 8 is four groups and is located at the corner of the upper mold body 1, and the upper end of the lower mold body 2 is connected with a positioning column 9 that is compatible with the sleeve 8, which is conducive to the positioning of the upper mold body 1.

[0027] Among them, the number of the guide columns 6 is four and they are distributed in an array. The two ends of the guide columns 6 are respectively connected to the lower mold body 2 and the base 3, so as to facilitate the guiding role during the rising and falling process of the auxiliary plate 4 and the support plate 5 to maintain the stability of the movement of the ejector 101.

[0028] Among them, the number of the ejector pins 101 is several groups, and the auxiliary plate 4, the support plate 5 and the lower mold body 2 are all provided with matching holes that are compatible with the ejector pins 101, the moving hole 102 is compatible with the supporting threaded rod 103, the supporting threaded rod 103 is compatible with the threaded barrel 104, the number of the bearing seats 105 is two groups and they are symmetrically distributed, the driven gear 106 is arranged in the middle of the threaded barrel 104, and the driven gear 106 is meshed with the driving gear 108, the driving motor 107 is connected to the inside of the base 3 by bolts, and the output end of the driving motor 107 is fixedly connected to the driving gear 108, which is conducive to slowly pushing up the ejector pin 101 and slowly ejecting the plastic product, thereby unloading.

[0029] During operation of the injection mold, the user injects the plastic solution from the injection port 7 into the middle of the upper mold body 1 and the lower mold body 2, and the corresponding product is molded according to the internal shape. After cooling and forming, the upper mold body 1 is lifted, and then the product is slowly ejected through the ejection assembly 10, so that the product falls, avoiding rapid ejection and causing damage to the outer surface of the product.

[0030] It should be noted that, through the setting of the ejection component 10, during the unloading process of the plastic product, the output end of the driving motor 107 drives the active gear 108 to mesh with the driven gear 106, and further drives the outer side of the threaded barrel 104 to rotate along the bearing seat 105, and at the same time, its interior rotates along the outer side of the supporting threaded rod 103, so that the threaded barrel 104 is threadedly connected with the supporting threaded rod 103, driving the supporting threaded rod 103 to rise along the inside of the moving hole 102, and at the same time driving the auxiliary plate 4 and the support plate 5 to move upward, and at the same time, the guide holes inside the two slide along the outer side of the guide column 6. During the movement of the support plate 5, it drives several groups of ejector pins 101 to slowly push up, thereby ejecting the plastic product, which is convenient for automatic unloading of the mold.

Claims

1. An injection mold, comprising an upper mold body (1) and a lower mold body (2), characterized in that: Also includes: A base (3), wherein the upper end of the base (3) is provided with two groups of support blocks near the bottom of the lower mold body (2), the middle part of the base (3) is provided with an auxiliary plate (4), a support plate (5) and a guide column (6), and the middle parts of the auxiliary plate (4) and the support plate (5) are both provided with guide holes that are compatible with the guide column (6); A material ejection assembly (10), the material ejection assembly (10) comprising an ejector pin (101), a movable hole (102), a supporting threaded rod (103), a threaded cylinder (104), a bearing seat (105), a driven gear (106), a driving motor (107) disposed at the bottom of a base (3), and a driving gear (108) disposed at the output end of the driving motor (107).

2. An injection mold according to claim 1, characterized in that: Also includes: An injection port (7), wherein the injection port (7) is located in the middle of the upper mold body (1) and extends through the upper mold body (1) to the lower end of the upper mold body (1).

3. An injection mold according to claim 1, characterized in that: Also includes: The sleeves (8) are four in number and are located at the corners of the upper mold body (1); the upper end of the lower mold body (2) is connected to a positioning column (9) that is compatible with the sleeves (8).

4. The injection mold according to claim 1, characterized in that: The number of the guide columns (6) is four and they are distributed in an array, and the two ends of the guide columns (6) are respectively connected to the lower mold body (2) and the base (3).

5. The injection mold according to claim 1, characterized in that: The ejector pins (101) are provided in a plurality of groups, and the auxiliary plate (4), the support plate (5) and the lower mold body (2) are all provided with matching holes that match the ejector pins (101).

6. The injection mold according to claim 1, characterized in that: The movable hole (102) is matched with the supporting threaded rod (103), the supporting threaded rod (103) is matched with the threaded barrel (104), the bearing seats (105) are provided in two groups and are symmetrically distributed, the driven gear (106) is arranged in the middle of the threaded barrel (104), and the driven gear (106) is meshed with the driving gear (108).

7. The injection mold according to claim 1, characterized in that: The driving motor (107) is connected to the interior of the base (3) via bolts, and a fixed connection is formed between the output end of the driving motor (107) and the driving gear (108).

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