Automatic calibration and adjustment device for plastic mold

Abstract

The utility model discloses an automatic calibrating and adjusting device for a plastic mould, which relates to the technical field of plastic moulds and comprises a mounting frame, a hydraulic cylinder and an upper mould body, the hydraulic cylinder is mounted at the top of the mounting frame, the bottom of the hydraulic cylinder is connected with the upper mould body, and a lower mould body is arranged at the bottom of the upper mould body. According to the automatic calibration and adjustment device for the plastic mold, a servo motor is started to drive a two-way screw rod to rotate through a coupler to perform a thread action with a calibration plate, and a sliding plate on the inner side of the calibration plate is driven to abut against the outer side of a lower mold body; after being adjusted and calibrated by the calibration plate and the sliding plate, the upper mold body and the lower mold body are subjected to butt-joint injection molding, so that the automatic calibration and adjustment device for the plastic mold solves the problem of mold butt-joint deviation caused by loosening and aging of parts after the upper mold and the lower mold are used for a long time in the injection molding process of the plastic mold; and the product quality is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic molds, in particular to an automatic calibration and adjustment device for plastic molds. Background Art

[0002] A plastic mold is the abbreviation of a combined mold used for compression molding, extrusion molding, injection molding, blow molding and low-foaming molding. It is a coordinated change of the mold's convex and concave molds and auxiliary molding systems. Among them, the convex and concave molds are the upper and lower molds, which can process a series of plastic parts of different shapes and sizes. The shape of the plastic mold determines the appearance of the product, and the processing quality and precision of the plastic mold also determine the quality of the product.

[0003] The existing plastic mold consists of an upper mold and a lower mold. During injection molding, the mold is clamped on the injection molding machine, and the molten plastic is injected into the molding cavity and cooled and shaped in the cavity. Then the upper and lower molds are separated, and the product is ejected from the mold cavity by the ejection system. Finally, the mold is closed for the next injection molding. However, during the injection molding process, the upper and lower molds will have mold docking deviation problems due to loose and aging parts after long-term use, which affects the quality of the product. Summary of the invention

[0004] The purpose of the utility model is to provide an automatic calibration and adjustment device for a plastic mold, so as to solve the problem of mold docking deviation caused by loose and aging parts of the upper mold and the lower mold during the injection molding process proposed in the above-mentioned background technology, thereby affecting the quality of the product.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: a plastic mold automatic calibration and adjustment device, including a mounting frame, a hydraulic cylinder and an upper mold body,

[0006] A hydraulic cylinder is installed on the top of the mounting frame, an upper mold body is connected to the bottom of the hydraulic cylinder, a lower mold body is arranged at the bottom of the upper mold body, the outer side of the lower mold body is installed with the mounting frame, and a control box is installed inside the mounting frame.

[0007] Preferably, a calibration mechanism is provided on the outer sides of the upper mold body and the lower mold body, and the calibration mechanism includes a servo motor mounted on a mounting frame via connecting bolts, and one end of the servo motor is connected to one end of a bidirectional screw via a coupling.

[0008] Preferably, the end of the bidirectional screw away from the coupling is rotationally connected to the mounting frame via a bearing seat, the outer side of the bidirectional screw is threadedly connected to the calibration plate via a threaded connection hole, and the two sides of the two calibration plates are slidably connected to the sliding groove opened inside the mounting frame via a sliding block.

[0009] Preferably, a sliding plate is provided inside the calibration plate, and two ends of the sliding plate are slidably connected to guide grooves provided inside the calibration plate via limit blocks.

[0010] Preferably, an extension layer is connected to the top of the sliding plate, a connecting frame is inserted into the extension layer through a groove, a return spring is connected to the outside of the connecting frame, and a mounting block is connected to the upper side of the upper mold body.

[0011] Preferably, the bottom of the connecting frame is plugged into the mounting block, and the slotted hole inside the connecting frame is connected through the locking bolt, and the outer side of the locking bolt is threadedly connected to the threaded hole inside the mounting block.

[0012] Preferably, a buffer spring is connected inside the sliding plate, the bottom of the buffer spring is connected to the upper side of the mounting plate, and the bottom of the mounting plate is connected to the calibration plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are: the automatic calibration and adjustment device for plastic molds starts the servo motor to drive the bidirectional screw to rotate through the coupling to perform threaded action with the calibration plate, driving the sliding plate inside the calibration plate to abut against the outer side of the lower mold body. When the hydraulic cylinder drives the upper mold body to move downward, the upper mold body will be adjusted and calibrated by the calibration plate and the sliding plate, and then docked with the lower mold body for injection molding, which solves the problem of mold docking offset due to loosening and aging of parts after long-term use of the upper and lower molds during the injection molding process, affecting the quality of the product.

[0014] 1. The automatic calibration and adjustment device for plastic molds is used to prevent the upper mold and the lower mold from aging after long-term use, which leads to the mold docking deviation. The servo motor is started to drive the bidirectional screw to rotate through the coupling to perform threading action with the calibration plate, driving the sliding plate inside the calibration plate to abut against the outer side of the lower mold body. When the hydraulic cylinder drives the upper mold body to move downward, the calibration plate and the sliding plate will adjust and calibrate the upper mold body and then dock with the lower mold body for injection, effectively avoiding the deviation of the upper mold body. The automatic calibration and adjustment device for plastic molds is provided with a calibration plate, which can automatically adjust and calibrate the downward pressing path of the upper mold body, thereby improving the stability and accuracy of the plastic mold during operation.

[0015] 2. The automatic calibration and adjustment device for plastic molds, in which the hydraulic cylinder drives the upper mold body to directly align with the lower mold body for pressing down, will cause a certain impact on the lower mold body. In order to reduce the impact suffered by the lower mold body and increase the service life of the lower mold body, the connecting frame at the downward pressing extension layer squeezes the reset spring until the bottom of the connecting frame is plugged into the mounting block, and the position of the connecting frame is limited by the locking bolt. At this time, the sliding plate can move back and forth with the upper mold body under the sliding action of the guide grooves and the limit blocks on both sides. During the movement, the buffer spring will provide buffering for the downward movement of the upper mold body and slow down the descending speed of the upper mold body. The automatic calibration and adjustment device for plastic molds is provided with a buffer spring and a sliding plate with enhanced guiding function, which can effectively extend the service life of the plastic mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main cross-sectional structure of the mounting frame of the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the mounting frame of the utility model from top view;

[0018] Figure 3 This is a schematic diagram of the side cross-sectional structure of the calibration plate of the utility model;

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the calibration plate of the utility model from top view;

[0020] Figure 5 It is a schematic diagram of the side view structure of the calibration plate of the utility model.

[0021] In the figure: 1. mounting frame; 2. hydraulic cylinder; 3. upper mold body; 4. lower mold body; 101. control box; 5. calibration mechanism; 501. servo motor; 502. bidirectional screw; 503. calibration plate; 504. slide groove; 505. sliding block; 506. sliding plate; 6. guide groove; 601. limit block; 7. extension layer; 701. connecting frame; 702. reset spring; 703. mounting block; 704. locking bolt; 705. mounting plate; 706. buffer spring. 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] See also Figure 1-Figure 5The utility model provides a technical solution: a plastic mold automatic calibration and adjustment device, including a mounting frame 1, a hydraulic cylinder 2 and an upper mold body 3,

[0024] A hydraulic cylinder 2 is installed on the top of the mounting frame 1, and an upper mold body 3 is connected to the bottom of the hydraulic cylinder 2. A lower mold body 4 is arranged at the bottom of the upper mold body 3, and the outer side of the lower mold body 4 is mounted on the mounting frame 1. A control box 101 is installed inside the mounting frame 1, and a calibration mechanism 5 is arranged on the outer sides of the upper mold body 3 and the lower mold body 4. The calibration mechanism 5 includes a servo motor 501 installed with the mounting frame 1 through a connecting bolt, one end of the servo motor 501 is connected to one end of a bidirectional screw 502 through a coupling, and the end of the bidirectional screw 502 away from the coupling is rotatably connected to the mounting frame 1 through a bearing seat, and the outer side of the bidirectional screw 502 is threadedly connected to the calibration plate 503 through a threaded connection hole, and the two sides of the two calibration plates 503 are slidably connected to the slide groove 504 opened in the mounting frame 1 through a sliding block 505, and a sliding plate 506 is arranged inside the calibration plate 503, and the two ends of the sliding plate 506 are slidably connected to the guide groove 6 opened in the calibration plate 503 through a limit block 601.

[0025] During specific implementation, in order to avoid the aging of the parts of the upper and lower molds after long-term use during the injection molding process, which may lead to the mold docking deviation, the servo motor 501 is started to drive the bidirectional screw 502 to rotate through the coupling to perform threading action with the calibration plate 503, thereby driving the sliding plate 506 on the inner side of the calibration plate 503 to abut against the outer side of the lower mold body 4. When the hydraulic cylinder 2 drives the upper mold body 3 to move downward, the upper mold body 3 will be adjusted and calibrated by the calibration plate 503 and the sliding plate 506, and then docked with the lower mold body 4 for injection molding, effectively avoiding the deviation of the upper mold body 3. Among them, the two sides of the calibration plate 503 are slidably connected to the slide groove 504 by sliding blocks 505, which are used to improve the stability of the calibration plate 503 when moving. The automatic calibration and adjustment device for plastic molds is provided with a calibration plate 503, which can automatically adjust and calibrate the downward pressing path of the upper mold body 3, thereby improving the stability and accuracy of the plastic mold when working.

[0026] See also Figure 1-Figure 3 and Figure 5It can be seen that the top of the sliding plate 506 is connected to the extension layer 7, and a connecting frame 701 is inserted into the extension layer 7 through a groove. The outer side of the connecting frame 701 is connected to the reset spring 702, and the upper side of the upper mold body 3 is connected to the mounting block 703. The bottom of the connecting frame 701 is inserted into the mounting block 703, and the slot hole inside the connecting frame 701 is connected with the locking bolt 704 through it. The outer side of the locking bolt 704 is threadedly connected to the threaded hole inside the mounting block 703, and the sliding plate 506 is connected to the buffer spring 706. The bottom of the buffer spring 706 is connected to the upper side of the mounting plate 705, and the bottom of the mounting plate 705 is connected to the calibration plate 503.

[0027] During the specific implementation, the hydraulic cylinder 2 drives the upper mold body 3 to directly align with the lower mold body 4 to press down, which will cause a certain impact on the lower mold body 4. In order to reduce the impact suffered by the lower mold body 4 and improve the service life of the lower mold body 4, the connecting frame 701 at the downward extension layer 7 is pressed to squeeze the reset spring 702 until the bottom of the connecting frame 701 is plugged into the mounting block 703 on the upper side of the upper mold body 3. The position of the connecting frame 701 is limited by the locking bolt 704. At this time, the sliding plate 506 can slide in the guide grooves 6 on both sides and the limit blocks 601. The lower mold body 3 moves back and forth with the upper mold body 3, and during the movement, the buffer spring 706 connected to the mounting plate 705 inside the sliding plate 506 will provide buffering for the downward movement of the upper mold body 3, thereby slowing down the descending speed of the upper mold body 3 and reducing the impact on the lower mold body 4, wherein the reset spring 702 is used for resetting the connecting frame 701 to facilitate the replacement of the upper mold body 3. The plastic mold automatic calibration and adjustment device is provided with a buffer spring 706 and a sliding plate 506 with enhanced guiding function, which can effectively extend the service life of the plastic mold.

[0028] To sum up, when using the automatic calibration and adjustment device for plastic molds, the control box 101 controls the hydraulic cylinder 2 to start and drive the upper mold body 3 to move downward. After the upper mold body 3 is adjusted and calibrated by the calibration plate 503 and the sliding plate 506, it is docked with the lower mold body 4 for injection molding. During the movement, the buffer spring 706 will provide a buffer for the downward movement of the upper mold body 3 and slow down the speed of the upper mold body 3. The contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may 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 shall be included in the protection scope of the present invention.

Claims

1. A plastic mold automatic calibration and adjustment device, comprising a mounting frame (1), a hydraulic cylinder (2) and an upper mold body (3), characterized in that: A hydraulic cylinder (2) is installed on the top of the mounting frame (1); an upper die body (3) is connected to the bottom of the hydraulic cylinder (2); a lower die body (4) is arranged at the bottom of the upper die body (3); the outer side of the lower die body (4) is mounted on the mounting frame (1); and a control box (101) is installed inside the mounting frame (1).

2. The automatic calibration and adjustment device for plastic mold according to claim 1, characterized in that: A calibration mechanism (5) is provided outside the upper mold body (3) and the lower mold body (4), and the calibration mechanism (5) comprises a servo motor (501) mounted on the mounting frame (1) via connecting bolts, and one end of the servo motor (501) is connected to one end of a bidirectional screw (502) via a coupling.

3. The automatic calibration and adjustment device for plastic mold according to claim 2, characterized in that: One end of the bidirectional screw (502) away from the coupling is rotatably connected to the mounting frame (1) via a bearing seat, the outer side of the bidirectional screw (502) is threadedly connected to the calibration plate (503) via a threaded connection hole, and the two sides of the two calibration plates (503) are slidably connected to the sliding groove (504) provided inside the mounting frame (1) via a sliding block (505).

4. The automatic calibration and adjustment device for plastic mold according to claim 3, characterized in that: A sliding plate (506) is provided inside the calibration plate (503), and two ends of the sliding plate (506) are slidably connected to guide grooves (6) provided inside the calibration plate (503) via limit blocks (601).

5. The automatic calibration and adjustment device for plastic mold according to claim 4, characterized in that: The top of the sliding plate (506) is connected to an extension layer (7), a connecting frame (701) is inserted into the extension layer (7) through a groove, a return spring (702) is connected to the outside of the connecting frame (701), and a mounting block (703) is connected to the upper side of the upper mold body (3).

6. The automatic calibration and adjustment device for plastic mold according to claim 5, characterized in that: The bottom of the connecting frame (701) is plugged into the mounting block (703), and the slotted hole inside the connecting frame (701) is connected through the locking bolt (704), and the outer side of the locking bolt (704) is threadedly connected to the threaded hole inside the mounting block (703).

7. The automatic calibration and adjustment device for plastic mold according to claim 5, characterized in that: A buffer spring (706) is connected inside the sliding plate (506), the bottom of the buffer spring (706) is connected to the upper side of the mounting plate (705), and the bottom of the mounting plate (705) is connected to the calibration plate (503).

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