A mold locking device for a two-color injection mold

Abstract

This application provides a clamping device for a two-color injection mold, used to clamp the upper and lower molds. It includes a support frame disposed at the bottom of the lower mold, a driving component at the bottom of the support frame, and two support plates connected to the driving component. A clamping frame is fixedly connected to each of the two support plates. The clamping frame is disposed between the lower and upper molds. The clamping frame is used to clamp the upper and lower molds after they are closed, and also to support and limit the upper mold after they are separated. By providing a movable clamping frame, which clamps the upper and lower molds after they are closed and supports and limits the upper mold after they are separated, this application reduces the possibility of the upper mold accidentally falling, provides safety for the mold, and improves the functionality of this application.

Description

Technical Field

[0001] This invention relates to the field of injection mold clamping technology, and more specifically, to a clamping device for a two-color injection mold. Background Technology

[0002] In the field of plastic product molding and processing, two-color injection molding technology is widely used in many industries due to its significant advantage of being able to mold two different colors or materials of plastic products in one step. In the working process of two-color injection molds, the mold clamping device plays a crucial role. It is mainly responsible for firmly locking the upper mold and the lower mold during the injection process to prevent the mold from separating due to internal pressure during high-pressure injection. However, most existing mold-locking devices for two-color injection molds are single-function, focusing only on locking the mold during the mold closing and injection stage. In actual production, when the upper mold opens and rises, the mold remains in the open state, at which point the upper mold is at risk of falling due to gravity or other unforeseen factors. Therefore, we have made improvements to address this issue and proposed a mold-locking device for two-color injection molds. Summary of the Invention

[0003] This invention provides a clamping device for a two-color injection mold, used to achieve clamping of the upper mold and the lower mold. It includes a support frame disposed at the bottom of the lower mold, a driving component disposed at the bottom of the support frame, and two support plates connected to the driving component. A clamping frame is fixedly connected to each of the two support plates. The clamping frame is disposed between the lower mold and the upper mold. The clamping frame is used to clamp the upper mold and the lower mold after they are closed. The clamping frame is also used to support and limit the upper mold after they are separated.

[0004] As a preferred technical solution of this application, the driving component includes a plurality of bearing seats installed at the bottom of the support frame, and a bidirectional screw is rotatably connected between the plurality of bearing seats through bearings, and both support plates are threadedly connected to the outer surface of the bidirectional screw.

[0005] As a preferred technical solution of this application, handwheels are fixedly connected to both ends of the bidirectional screw.

[0006] As a preferred technical solution of this application, a connecting member is provided between the bottom of the support frame and the extension plate and the support plate.

[0007] As a preferred technical solution of this application, the connecting member includes a slide rail installed at the bottom of the support frame and a connecting plate installed on the side of the support plate. Both the connecting plate and the support plate are equipped with sliders, which are slidably connected to the outer surface of the slide rail.

[0008] As a preferred technical solution of this application, extension plates are fixedly installed on both sides of the support frame, and the bottom of the extension plates is connected to the slide rail.

[0009] As a preferred technical solution of this application, the bottom of the support frame is provided with a support member, which is used to support the support frame.

[0010] As a preferred technical solution of this application, the support member includes a plurality of support seats, and the plurality of support seats are all installed at the bottom of the support frame.

[0011] As a preferred technical solution of this application, a support wheel is installed at the bottom of the support plate, and the bottom of the support wheel and the bottom of the support base are located on the same plane.

[0012] As a preferred technical solution of this application, the support frame and the side of the upper mold are both provided with grooves, and the grooves are inserted into the outer surface of the mold locking frame.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: In the scheme of this application: This application provides a movable mold locking frame, which locks the upper and lower molds after they are closed. The mold locking frame also supports and limits the upper mold after it is separated from the lower mold. This reduces the possibility of the upper mold falling accidentally, provides safety for the mold, and improves the functionality of this application. Attached Figure Description

[0014] Figure 1 A schematic diagram of the clamping device for the two-color injection mold provided in this application; Figure 2 Another structural schematic diagram of the clamping device for the two-color injection mold provided in this application; Figure 3 A schematic diagram of the bearing housing and the double-acting screw provided in this application; Figure 4 A schematic diagram of the structure of the connecting plate provided in this application; Figure 5 This is a schematic diagram of the structure of the mold clamping frame provided in this application when it supports and limits the upper mold.

[0015] The image shows: 1. Support frame; 101. Support base; 102. Extension plate; 103. Slide rail; 104. Slider; 105. Connecting plate; 2. Bearing seat; 201. Support plate; 202. Mold locking frame; 203. Support wheel; 204. Double-acting screw; 205. Handwheel. Detailed Implementation

[0016] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0017] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0018] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0019] For an example, please refer to... Figures 1-4 A locking device for a two-color injection mold is disclosed, used to lock the upper mold and the lower mold. It includes a support frame 1 located at the bottom of the lower mold, a driving component at the bottom of the support frame 1, and two support plates 201 connected to the driving component. A locking frame 202 is fixedly connected to each of the two support plates 201. The locking frame 202 is connected to the support plates 201 by bolts or welding. The locking frame 202 is located between the lower mold and the upper mold. The locking frame 202 is used to lock the upper mold and the lower mold after they are closed. The locking frame 202 also supports and limits the upper mold after they are separated, reducing the possibility of the upper mold falling accidentally, providing safety for the mold, and improving the functionality of this application.

[0020] Furthermore, the driving component includes several bearing seats 2 mounted on the bottom of the support frame 1. The several bearing seats 2 are rotatably connected by a bidirectional screw 204 through bearings. Both support plates 201 are threadedly connected to the outer surface of the bidirectional screw 204. The bearing seats 2 are mounted on the bottom of the support frame 1 by bolts. During the rotation of the bidirectional screw 204, it can drive the two support plates 201 to move closer or further away from each other, thereby adjusting the position of the two mold-locking frames 202.

[0021] Furthermore, handwheels 205 are fixedly connected to both ends of the bidirectional screw 204. The handwheels 205 are connected to the bidirectional screw 204 by bolts. The presence of handwheels 205 at both ends of the bidirectional screw 204 facilitates operation by the staff.

[0022] Furthermore, a connector is provided between the bottom of the support frame 1 and the extension plate 102 and the support plate 201; the connector includes a slide rail 103 installed at the bottom of the support frame 1 and a connecting plate 105 installed on the side of the support plate 201. A slider 104 is installed on both the connecting plate 105 and the support plate 201. The slider 104 is slidably connected to the outer surface of the slide rail 103. The connecting plate 105 is welded to the support plate 201. The slide rail 103 is connected to the support frame 1 by bolts. The connecting plate 105 and the support plate 201 are also connected to the slider 104 by bolts. The slider 104 and the slide rail 103 cooperate with each other to limit the movement trajectory of the support plate 201, so as to improve the stability of the support plate 201 and the mold clamping frame 202 when they move.

[0023] Furthermore, extension plates 102 are fixedly installed on both sides of the support frame 1. The bottom of the extension plate 102 is connected to the slide rail 103. The extension plate 102 is welded to the support frame 1 and is used to support the slide rail 103.

[0024] Furthermore, a support member is provided at the bottom of the support frame 1, which is used to support the support frame 1. The support member includes several support seats 101, which are all installed at the bottom of the support frame 1. The support seats 101 are provided with mounting holes. When in use, the support seats 101 are installed on the support surface by bolts and mounting holes.

[0025] Furthermore, a support wheel 203 is installed at the bottom of the support plate 201. The bottom of the support wheel 203 is on the same plane as the bottom of the support base 101, and the support wheel 203 can support the support plate 201.

[0026] Furthermore, the support frame 1 and the side of the upper mold are provided with grooves, and the grooves are inserted into the outer surface of the mold clamping frame 202. After the mold is clamped, the mutual cooperation between the grooves and the mold clamping frame 202 can reduce the offset between the upper mold and the lower mold.

[0027] For ease of understanding, this application uses A to represent the lower mold and B to represent the upper mold, and these are labeled in the figure. Initially, the distance between the two mold-locking frames 202 is at its maximum. After the upper mold descends, it closes with the lower mold. Then, the handwheel 205 is rotated to rotate the bidirectional screw 204. During the rotation of the bidirectional screw 204, the two support plates 201 are driven closer together, which in turn drives the two mold-locking frames 202 closer together, i.e., as shown... Figure 1 As shown, to perform the mold-locking operation, after injection molding is completed, the handwheel 205 is rotated in the reverse direction to separate the mold-locking frame 202 from the upper mold, and the upper mold rises to open. When the upper mold moves above the mold-locking frame 202, the handwheel 205 is rotated to bring the two mold-locking frames 202 closer together and move them below the upper mold, as shown. Figure 5As shown, at this time, the mold clamping frame 202 can support and limit the upper mold.

[0028] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0029] Obviously, the embodiments described above are merely some embodiments of the present invention, not all embodiments. The accompanying drawings show preferred embodiments of the present invention, but do not limit the patent scope of the present invention. The present invention can be implemented in many different forms; rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this invention.

Claims

1. A clamping device for a two-color injection mold, used to achieve clamping of the upper mold and the lower mold, characterized in that, The device includes a support frame (1) located at the bottom of the lower mold. A driving component is provided at the bottom of the support frame (1). The driving component is connected to two support plates (201). A mold locking frame (202) is fixedly connected to each of the two support plates (201). The mold locking frame (202) is located between the lower mold and the upper mold. The mold locking frame (202) is used to lock the upper mold and the lower mold after they are closed. The mold locking frame (202) is also used to support and limit the upper mold after it is separated from the lower mold.

2. The clamping device for a two-color injection mold according to claim 1, characterized in that, The driving component includes several bearing seats (2) installed at the bottom of the support frame (1), and a bidirectional screw (204) is rotatably connected between the several bearing seats (2) through bearings. Both support plates (201) are threadedly connected to the outer surface of the bidirectional screw (204).

3. The clamping device for a two-color injection mold according to claim 2, characterized in that, Handwheels (205) are fixedly connected to both ends of the bidirectional screw (204).

4. The clamping device for a two-color injection mold according to claim 1, characterized in that, A connector is provided between the bottom of the support frame (1) and the extension plate (102) and the support plate (201).

5. The clamping device for a two-color injection mold according to claim 4, characterized in that, The connector includes a slide rail (103) installed at the bottom of the support frame (1) and a connecting plate (105) installed on the side of the support plate (201). A slider (104) is installed on both the connecting plate (105) and the support plate (201). The slider (104) is slidably connected to the outer surface of the slide rail (103).

6. The clamping device for a two-color injection mold according to claim 5, characterized in that, Extension plates (102) are fixedly installed on both sides of the support frame (1), and the bottom of the extension plates (102) is connected to the slide rail (103).

7. The clamping device for a two-color injection mold according to claim 1, characterized in that, The bottom of the support frame (1) is provided with a support member, which is used to support the support frame (1).

8. The clamping device for a two-color injection mold according to claim 7, characterized in that, The support includes a plurality of support seats (101), and the plurality of support seats (101) are all installed at the bottom of the support frame (1).

9. The clamping device for a two-color injection mold according to claim 1, characterized in that, The bottom of the support plate (201) is equipped with a support wheel (203), and the bottom of the support wheel (203) is on the same plane as the bottom of the support base (101).

10. The clamping device for a two-color injection mold according to claim 1, characterized in that, The support frame (1) and the side of the upper mold are both provided with grooves, and the grooves are inserted into the outer surface of the mold locking frame (202).

Images