Injection molding machine mold structure capable of quickly replacing insert

Abstract

The injection molding machine mold structure comprises a lower mold, a positioning sliding rod, a screw rod, a driving motor, a first transmission gear, a second transmission gear and a threaded sliding seat, an upper mold is installed on the upper end face of the lower mold in an attached mode, the inserts are inserted into the upper mold, connecting rods are fixed to the upper end faces of the inserts, and long plates are fixed to the upper end faces of the connecting rods. A movable limiting plate is connected into the inserting plate in an attached mode. The outer side of the annular face of the movable limiting plate is sleeved with a spring. A positioning sliding rod is fixed to the upper end face of the mounting base. A graduated scale is arranged on the outer side of the annular face of the positioning sliding rod. A top plate is fixed to the upper end face of the positioning sliding rod. According to the design, the motor threaded sliding seat is driven to move up and down to drive the long plate to move up and down, so that the length of the insert extending into the mold cavity is adjusted, the length adjusting precision is high, the working time of workers can be saved, and the practicability is good.

Description

Technical Field

[0001] The utility model discloses a mold structure for an injection molding machine for quickly replacing inserts, belonging to the technical field of injection molding machines. Background Art

[0002] When using plastic molds to process home appliances, due to the complex product structure, it is usually necessary to install multiple inserts on the lower surface of the upper mold to complete the molding of the product. Depending on the type of plastic product produced, inserts of different shapes need to be replaced.

[0003] After searching the Chinese patent number: CN219405044U, a mold with quickly disassembled inserts was found. The design scheme rotates the threaded sleeve to make it move up and down on the threaded rod, thereby driving the sliding sleeve fixedly connected at the lower end to move up and down. When moving down, the long plate will be squeezed downward, and the spring at the lower end of the long plate squeezes to slide on the sliding rod. The long plate moves downward, thereby driving the connecting rod and the insert fixedly connected at the lower end to move downward, so that the length of the insert extended into the mold cavity can be adjusted, thereby improving the adjustment efficiency. By adjusting the insertion length of the insert, the frequency of its replacement can be reduced. During replacement, the mold does not need to be disassembled and assembled, thereby improving the replacement efficiency. However, in this technical scheme, the staff needs to manually rotate the threaded sleeve to adjust the length of the insert extended into the mold cavity. The length adjustment accuracy is low and it wastes working time, and the practicality is poor. Now, there is an urgent need for an injection molding machine mold structure for quickly replacing inserts to solve the above-mentioned problems. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide an injection molding machine mold structure for quickly replacing inserts, so as to solve the problems raised in the above-mentioned background technology. The utility model has a reasonable structure. The design drives the long plate to move up and down by driving the motor threaded slide to achieve the length adjustment of the insert extending into the mold cavity. The length adjustment has high accuracy and can save the working time of the staff, and has good practicality.

[0005] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a mold structure of an injection molding machine for quickly replacing inserts, comprising a lower mold, a positioning slide rod, a screw rod, a driving motor, a first transmission gear, a second transmission gear and a threaded slide seat, the upper end surface of the lower mold is fitted with an upper mold, an insert is inserted inside the upper mold, a connecting rod is fixed to the upper end surface of the insert, a long plate is fixed to the upper end surface of the connecting rod, a mounting base is fixed to the upper end surface of the upper mold, an insert plate is fixed to the lower end surface of the mounting base, a movable limiting plate is fitted inside the insert plate, and a spring is sleeved on the outer side of the ring surface of the movable limiting plate;

[0006] A positioning slide rod is fixed on the upper end surface of the mounting base, a scale is arranged on the outer side of the annular surface of the positioning slide rod, a top plate is fixed on the upper end surface of the positioning slide rod, a screw rod is rotatably connected between the top plate and the upper mold, a driving motor is fixed on the lower end surface of the long plate, a first transmission gear is installed on the output end of the driving motor, the first transmission gear is meshedly connected with the second transmission gear, a threaded slide seat is fixed on the inner wall of the second transmission gear and is meshedly connected with the threaded rod.

[0007] Furthermore, a limiting hole is provided inside the insert plate, the inner diameter of the limiting hole is equal to the outer diameter of the movable limiting plate, and the two can be fitted and connected.

[0008] Furthermore, a positioning sliding hole is opened inside the long plate, the inner diameter of the positioning sliding hole is equal to the outer diameter of the positioning sliding rod, and the two can fit and slide in connection.

[0009] Furthermore, the specification of the first transmission gear matches the specification of the second transmission gear, and the two can be closely meshed and connected.

[0010] Furthermore, the inner diameter of the threaded sliding seat is equal to the outer diameter of the screw rod, and the two can fit together and be rotatably connected.

[0011] Furthermore, a rotating hole is opened inside the long plate, the inner diameter of the rotating hole is equal to the outer diameter of the threaded sliding seat, and the two can fit together and be rotatably connected.

[0012] The beneficial effects of the utility model: the utility model provides an injection molding machine mold structure for quickly replacing inserts. Since the utility model adds a positioning slide rod, a screw rod, a drive motor, a first transmission gear, a second transmission gear and a threaded slide seat, the design drives the long plate to move up and down by driving the motor threaded slide seat to achieve the length adjustment of the insert extending into the mold cavity. The length adjustment has high accuracy and can save the working time of the staff, and has good practicality. It solves the problem that the staff of the original mold with quickly disassembled inserts needs to manually rotate the threaded sleeve to achieve the length adjustment of the insert extending into the mold cavity, and the length adjustment accuracy is low and wastes working time, and the practicality is poor. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0014] Figure 1 This is a structural cross-sectional view of a mold structure of an injection molding machine for quickly replacing inserts according to the utility model;

[0015] Figure 2 This is a partial structural diagram of a mold structure of an injection molding machine for quickly replacing inserts according to the utility model;

[0016] Figure 3 This is a partial structural diagram of a mold structure of an injection molding machine for quickly replacing inserts according to the utility model;

[0017] In the figure: 1-lower mold, 2-upper mold, 3-insert, 4-connecting rod, 5-long plate, 6-top plate, 7-positioning slide, 8-scale, 9-screw, 10-mounting base, 11-insert plate, 12-movable limit plate, 13-spring, 14-drive motor, 15-first transmission gear, 16-second transmission gear, 17-threaded slide. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] See also Figure 1-Figure 3 The utility model provides a technical solution: a mold structure of an injection molding machine for quickly replacing inserts, including a lower mold 1, a positioning slide bar 7, a screw rod 9, a driving motor 14, a first transmission gear 15, a second transmission gear 16 and a threaded slide seat 17, the upper end surface of the lower mold 1 is fitted with an upper mold 2, an insert 3 is inserted inside the upper mold 2, a connecting rod 4 is fixed to the upper end surface of the insert 3, a long plate 5 is fixed to the upper end surface of the connecting rod 4, a mounting base 10 is fixed to the upper end surface of the upper mold 2, an insert plate 11 is fixed to the lower end surface of the mounting base 10, a movable limiting plate 12 is fitted inside the insert plate 11, and a spring 13 is sleeved on the outer side of the ring surface of the movable limiting plate 12;

[0020] A positioning slide bar 7 is fixed to the upper end face of the mounting base 10, a scale 8 is arranged on the outer side of the ring surface of the positioning slide bar 7, a top plate 6 is fixed to the upper end face of the positioning slide bar 7, a screw rod 9 is rotatably connected between the top plate 6 and the upper mold 2, a driving motor 14 is fixed to the lower end face of the long plate 5, a first transmission gear 15 is installed at the output end of the driving motor 14, the first transmission gear 15 is meshingly connected to the second transmission gear 16, a threaded slide seat 17 is fixed to the inner wall of the second transmission gear 16 and is meshingly connected to the threaded rod, this design drives the long plate 5 to move up and down by the up and down movement of the threaded slide seat 17 of the driving motor 14 to achieve the length adjustment of the insert 3 extending into the mold cavity, the length adjustment has high precision and can save the working time of the staff, and has good practicality.

[0021] As a first embodiment of the utility model: a limiting hole is provided inside the insert plate 11, the inner diameter of the limiting hole is equal to the outer diameter of the movable limiting plate 12, and the two can be fitted and connected. This design enables the insert plate 11 to be limitedly installed inside the upper mold 2 through the fitting connection between the movable limiting plate 12 and the limiting hole, which is convenient for the staff to disassemble and replace the insert 3;

[0022] A positioning slide hole is provided inside the long plate 5, and the inner diameter of the positioning slide hole is equal to the outer diameter of the positioning slide rod 7, and the two can fit and slide together. This design makes the up and down movement of the long plate 5 more stable through the fitting and sliding connection between the positioning slide hole and the positioning slide rod 7, so that the length of the insert 3 extending into the mold cavity can be uniformly adjusted;

[0023] The specifications of the first transmission gear 15 match those of the second transmission gear 16, and the two can be fitted and meshed together. The inner diameter of the threaded slide 17 is equal to the outer diameter of the screw 9, and the two can be fitted and rotatably connected. A rotating hole is opened inside the long plate 5, and the inner diameter of the rotating hole is equal to the outer diameter of the threaded slide 17, and the two can be fitted and rotatably connected. This design drives the first transmission gear 15 to rotate by driving the motor 14, so that the first transmission gear 15 can be meshed and connected with the second transmission gear 16, so that the second transmission gear 16 can drive the threaded slide 17 to rotate, so that the threaded slide 17 is rotatably connected with the screw 9, thereby driving the long plate 5 to move up and down, and realizing the length adjustment of the insert 3 extending into the mold cavity.

[0024] As the second embodiment of the utility model: the staff first electrically connects the driving motor 14 to the external power supply and the external controller through the wire, and drives the first transmission gear 15 to rotate through the driving motor 14, so that the first transmission gear 15 can be meshed and connected with the second transmission gear 16, so that the second transmission gear 16 can drive the threaded slide 17 to rotate, so that the threaded slide 17 is rotatably connected with the screw 9, and the fitting sliding connection between the positioning slide hole and the positioning slide rod 7 makes the up and down movement of the long plate 5 more stable, so that the length of the insert 3 extending into the mold cavity can be uniformly adjusted. When it is necessary to disassemble and replace the insert 3, it is only necessary to pull the movable limit plate 12 so that the movable limit plate 12 can leave the limit hole of the insertion plate 11. At this time, the long plate 5 can be lifted upward, that is, the disassembly of the insert 3 can be completed. The installation is carried out in the opposite process, which is convenient for the staff to disassemble and replace the insert 3.

[0025] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0026] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. The standard parts used in this utility model can be purchased from the market, and the special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt the conventional means such as screws, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A mold structure for an injection molding machine for quickly replacing inserts, comprising a lower mold, a positioning slide rod, a screw, a driving motor, a first transmission gear, a second transmission gear and a threaded slide seat, Features: The upper die is fitted on the upper end surface of the lower die, an insert is inserted inside the upper die, a connecting rod is fixed on the upper end surface of the insert, a long plate is fixed on the upper end surface of the connecting rod, a mounting base is fixed on the upper end surface of the upper die, an insert plate is fixed on the lower end surface of the mounting base, a movable limit plate is fitted inside the insert plate, and a spring is sleeved on the outer side of the ring surface of the movable limit plate; A positioning slide rod is fixed on the upper end surface of the mounting base, a scale is arranged on the outer side of the annular surface of the positioning slide rod, a top plate is fixed on the upper end surface of the positioning slide rod, a screw rod is rotatably connected between the top plate and the upper mold, a driving motor is fixed on the lower end surface of the long plate, a first transmission gear is installed on the output end of the driving motor, the first transmission gear is meshedly connected with the second transmission gear, a threaded slide seat is fixed on the inner wall of the second transmission gear and is meshedly connected with the threaded rod.

2. According to claim 1, a mold structure for an injection molding machine with a quick replacement of inserts, Features: A limiting hole is provided inside the insert plate, the inner diameter of the limiting hole is equal to the outer diameter of the movable limiting plate, and the two can be fitted and connected.

3. The mold structure of an injection molding machine for quickly replacing inserts according to claim 1, Features: A positioning sliding hole is provided inside the long plate, the inner diameter of the positioning sliding hole is equal to the outer diameter of the positioning sliding rod, and the two can fit and slide in connection.

4. The mold structure of an injection molding machine for quickly replacing inserts according to claim 1, Features: The specification of the first transmission gear matches that of the second transmission gear, and the two can be closely meshed and connected.

5. The mold structure of an injection molding machine for quickly replacing inserts according to claim 1, Features: The inner diameter of the threaded sliding seat is equal to the outer diameter of the screw rod, and the two can be fitted and rotatably connected.

6. The mold structure of an injection molding machine for quickly replacing inserts according to claim 1, Features: A rotating hole is provided inside the long plate, the inner diameter of the rotating hole is equal to the outer diameter of the threaded sliding seat, and the two can fit together and be rotatably connected.

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