A mold structure driven by hydraulic motor rack
By using a hydraulic motor to drive the rack in the mold to complete the core entry and core extraction operations, and using the limit structure of the gantry stand, the problem of super-height caused by the cylinder core extraction mold structure of the conventional rack core extraction mold structure is solved, and the rational utilization of resources and the reduction of equipment costs are achieved.
Patent Information
- Application Number
- CN202421485767.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-27
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-06-27
AI Technical Summary
The mold structure of conventional rack core extraction uses oil cylinder core extraction, which leads to the high height of the mold, requiring a larger injection molding machine, resulting in waste of resources and increasing equipment procurement costs.
The mold structure of hydraulic motor rack transmission is adopted, and the core-entry and core-extraction actions are completed by driving the rack through the hydraulic motor, and the position limiting structure of the gantry stand ensures the correct movement of the rack.
It reduces the overall height of the mold, rationally utilizes machine resources, reduces equipment investment costs, and solves the problem of super high height of conventional oil cylinder core extraction structures.
Smart Images
Figure CN222697813U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of mold manufacturing, in particular to a mold structure driven by a hydraulic motor rack. Background Art
[0002] Rack core pulling molds often involve a specific mold design that uses a rack and pinion transmission method to achieve the core pulling action in the mold. This design is particularly common in injection molds and is used to process plastic parts with complex shapes and high dimensional accuracy requirements.
[0003] Conventional rack core-pulling mold structures mostly use oil cylinder core-pulling, which causes the mold height to be too high. A larger machine must be used to avoid the oil cylinder from hitting the robot of the machine. For example, a 200T injection molding machine can meet the clamping force and injection volume required by the mold. However, due to the extraordinary mold height, a larger injection molding machine such as 250T or 300T must be used, resulting in a waste of resources and an increase in unnecessary equipment procurement costs. A hydraulic motor rack drive mold structure is proposed to solve the above problems. Utility Model Content
[0004] In order to solve the problems raised in the above background technology, the utility model provides a mold structure with hydraulic motor rack transmission.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mold structure driven by a hydraulic motor and a rack, comprising a gantry frame, one end of the gantry frame is fixedly connected to a hydraulic motor, a rack is arranged on the hydraulic motor, a tooth axis fixing plate is fixedly installed on the bottom of the gantry frame, one side of the tooth axis fixing plate is spliced with a sleeve fixing plate, one side of the sleeve fixing plate is spliced with a first fixing plate, the other side of the tooth axis fixing plate is spliced with a push plate, one side of the push plate is spliced with a cavity plate, one side of the cavity plate is spliced with a rear mold insert fixing plate, one side of the rear mold insert fixing plate is spliced with a pad plate, two mold feet are arranged on one side of the pad plate, a pin plate is arranged in the middle of one side of the pad plate, one side of the pin plate is spliced with a second fixing plate, and two sleeve pin pressure plates are embedded on the second fixing plate.
[0006] Preferably, the bottom of the gantry stand is in contact with the top sides of the cylinder fixing plate, the tooth shaft fixing plate and the push plate respectively, and the tooth shaft fixing plate is provided with a limiting groove for the two racks to move up and down.
[0007] Preferably, the side of the mold foot away from the backing plate is spliced with the second fixed plate, and the tops of the two racks are connected by a limiting column.
[0008] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0009] The utility model installs the mold on an injection molding machine of suitable tonnage. Before the mold is closed, the machine neutron advances, and hydraulic oil enters the hydraulic motor through a high-pressure oil pipe, so that the rack moves downward to complete the core entry action. After the product injection molding is completed, the mold is opened, the machine neutron retreats, and the hydraulic oil enters the hydraulic motor from another high-pressure oil pipe to drive the rack to move upward, and the rack is stopped and no longer moves upward through the limit of the gantry stand to complete the core pulling action. Finally, the product is taken out by a robot, which reduces the overall height of the mold, makes rational use of machine resources, and reduces the investment cost of factory equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 This is a schematic diagram of the structure installation of the utility model;
[0011] Figure 2 This is a schematic diagram of the position relationship between the gantry stand, rack and tooth axis fixing plate of the utility model;
[0012] Figure 3 It is a schematic diagram of the disassembly of the utility model.
[0013] In the figure: 1. gantry frame; 2. hydraulic motor; 3. ejector plate; 4. ejector pin pressure plate; 5. mold foot; 6. first fixed plate; 7. ejector fixed plate; 8. tooth axis fixed plate; 9. push plate; 10. cavity plate; 11. rear mold insert fixed plate; 12. pad plate; 13. rack; 14. second fixed plate. DETAILED DESCRIPTION
[0014] 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.
[0015] like Figures 1 to 3 As shown, the utility model provides a mold structure with hydraulic motor rack drive, including a gantry frame 1, one end of the gantry frame 1 is fixedly connected to a hydraulic motor 2, a rack 13 is arranged on the hydraulic motor 2, a tooth shaft fixing plate 8 is fixedly installed on the bottom of the gantry frame 1, one side of the tooth shaft fixing plate 8 is spliced with a sleeve fixing plate 7, one side of the sleeve fixing plate 7 is spliced with a first fixing plate 6, the other side of the tooth shaft fixing plate 8 is spliced with a push plate 9, one side of the push plate 9 is spliced with a cavity plate 10, one side of the cavity plate 10 is spliced with a rear mold insert fixing plate 11, one side of the rear mold insert fixing plate 11 is spliced with a pad plate 12, one side of the pad plate 12 is provided with two mold feet 5, a middle part of one side of the pad plate 12 is provided with an ejector plate 3, one side of the ejector plate 3 is spliced with a second fixing plate 14, and two ejector pin pressure plates 4 are embedded in the second fixing plate 14;
[0016] By installing the mold on an injection molding machine of suitable tonnage, before the mold is closed, the machine core is advanced, and the hydraulic oil enters the hydraulic motor 2 through the high-pressure oil pipe, so that the rack 13 moves downward to complete the core entry action. After the product injection molding is completed, the mold is opened, the machine core is retreated, and the hydraulic oil enters the hydraulic motor 2 from another high-pressure oil pipe to drive the rack 13 to move upward, and the rack 13 is stopped and no longer moves upward through the limit of the gantry stand 1, completing the core pulling action. The final product is taken out by the manipulator, which solves the problem of the mold height being too high in the conventional oil cylinder core pulling structure, and also solves the technical problem that the conventional oil motor structure cannot limit and adjust the product screw thread direction;
[0017] It is worth noting that the machine neutrons and high-pressure oil pipes mentioned in this specific implementation are existing structures on the injection molding machine and will not be described in detail.
[0018] like Figures 1 to 3 As shown, the bottom of the gantry stand 1 is in contact with the top sides of the cylinder fixing plate 7, the tooth shaft fixing plate 8 and the push plate 9 respectively, and the tooth shaft fixing plate 8 is provided with a limiting groove for the two racks 13 to move up and down. The side of the mold foot 5 away from the backing plate 12 is spliced with the second fixing plate 14, and the tops of the two racks 13 are connected by limiting columns;
[0019] The gantry frame 1 can be supported and fixed by the sleeve fixing plate 7, the tooth shaft fixing plate 8 and the push plate 9, and the rack 13 can be limited by the limiting groove. When the rack 13 moves upward, it can be limited by contacting with the top of the gantry frame 1 through the limiting column, so that the rack 13 stops moving upward.
[0020] The working principle and use process of this utility model:
[0021] By installing the mold on an injection molding machine of suitable tonnage, before the mold is closed, the machine neutron advances, and the hydraulic oil enters the hydraulic motor 2 through the high-pressure oil pipe, so that the rack 13 moves downward to complete the core entry action. After the product injection molding is completed, the mold is opened, the machine neutron retreats, and the hydraulic oil enters the hydraulic motor 2 from another high-pressure oil pipe to drive the rack 13 to move upward, and the rack 13 is stopped and no longer moves upward through the limit of the gantry stand 1, completing the core pulling action. Finally, the product is taken out by the robot to complete the operation.
[0022] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A mold structure driven by a hydraulic motor rack, comprising a gantry stand (1), characterized in that: One end of the gantry frame (1) is fixedly connected to a hydraulic motor (2), a rack (13) is provided on the hydraulic motor (2), a tooth axis fixing plate (8) is fixedly installed on the bottom of the gantry frame (1), one side of the tooth axis fixing plate (8) is spliced with a sleeve fixing plate (7), one side of the sleeve fixing plate (7) is spliced with a first fixing plate (6), the other side of the tooth axis fixing plate (8) is spliced with a push plate (9), one side of the push plate (9) is spliced with a cavity plate (10), one side of the cavity plate (10) is spliced with a rear mold insert fixing plate (11), one side of the rear mold insert fixing plate (11) is spliced with a pad plate (12), one side of the pad plate (12) is provided with two mold feet (5), a pin plate (3) is provided in the middle of one side of the pin plate (12), one side of the pin plate (3) is spliced with a second fixing plate (14), and two sleeve pin pressure plates (4) are embedded in the second fixing plate (14).
2. The mold structure of the hydraulic motor rack transmission according to claim 1 is characterized in that: The bottom of the gantry stand (1) is in contact with the top side of the cylinder fixing plate (7), the tooth axis fixing plate (8) and the push plate (9) respectively, and the tooth axis fixing plate (8) is provided with a limit groove for the two racks (13) to move up and down.
3. The mold structure of the hydraulic motor rack transmission according to claim 1 is characterized in that: The side of the mold foot (5) away from the backing plate (12) is spliced with the second fixed plate (14), and the tops of the two racks (13) are connected via a limiting column.