CN212948765U

CN212948765U - Plastic mold for lower casing of electric tool

Info

Publication number: CN212948765U
Application number: CN202021820882.3U
Authority: CN
Inventors: 戚腾春; ***
Original assignee: Kunshan Beite Precision Mould Co ltd
Current assignee: Kunshan Beite Precision Mould Co ltd
Priority date: 2020-08-27
Filing date: 2020-08-27
Publication date: 2021-04-13
Anticipated expiration: 2030-08-27

Abstract

The utility model discloses an electric tool lower casing plastic mould, including cover half, cylinder, movable mould, montant and terrace die, the die cavity has been seted up to the top inside of cover half, the below internally mounted of cover half has the spring, the top of connecting rod is fixed with the kicking block, the passageway has been seted up to the inside of cover half, the top of cover half is provided with the movable mould, the middle part of movable mould is fixed with the montant, the surface of movable mould is seted up flutedly, the top of terrace die is fixed with the inserted block, the conveying pipeline has all been seted up to the inside of inserted block and movable mould, the bolt is installed to the top of movable mould. This electric tool lower casing plastic mould, the inside symmetry of cover half is provided with the die cavity, and every die cavity all corresponds and is equipped with the inlet pipe, through pour into the blank into the die cavity that corresponds from the inlet pipe inside, can carry out the production work of a plurality of electric tool lower casings between the unit, has effectively improved the production efficiency of electric tool lower casing.

Description

Plastic mold for lower casing of electric tool

Technical Field

The utility model relates to an electric tool correlation technique field specifically is an electric tool lower casing plastic mould.

Background

The electric tool is a tool indispensable to human labor, three major product series of industrial, maintenance and household are formed at present, along with the high-speed development of electronic technology, various electronic control technologies are widely applied to the electric tool, the performance of the electric tool is improved, the processing quality, the use flexibility and the product added value are improved, meanwhile, the electric tool is pushed to a brand-new development stage, the electric tool is firstly made of cast iron as a shell and then made of aluminum alloy, slow thermoplastic engineering plastics are applied to the electric tool, the double insulation of the electric tool is realized, the use safety of the electric tool is guaranteed, a plastic mold is required to be used when a lower shell of the electric tool is produced, and the existing plastic mold has certain defects.

Most of the existing plastic molds are only provided with one mold cavity, and the molds can not be reused after being injected with blanks before demolding, so that the production work of only one electric tool lower shell can be carried out in unit time, the production efficiency of the electric tool lower shell is reduced, the phenomenon of incomplete demolding is easy to occur in a few plastic molds with multiple mold cavities, manual assistance is needed for buckling out the forming shell inside the mold, and the operation is very complicated.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electric tool lower casing plastic mould to propose the production work that current plastic mould only was provided with a die cavity mostly among the solution above-mentioned background art, can only carry out an electric tool lower casing in the unit interval, reduced the production efficiency of electric tool lower casing, the not thorough phenomenon of drawing of patterns easily appears, need artifical supplementary to detain the inside shaping casing of mould and get, operate very loaded down with trivial details problem.

In order to achieve the above object, the utility model provides a following technical scheme: a plastic mould for a lower shell of an electric tool comprises a fixed mould, a cylinder, a movable mould, a vertical rod and a convex mould, wherein a mould cavity is formed in the upper portion of the fixed mould, a clamping groove is formed in the surface of the inner wall of the mould cavity, a spring is arranged in the lower portion of the fixed mould, a connecting rod is connected above the spring, a top block is fixed above the connecting rod and is positioned in the mould cavity, a channel is formed in the fixed mould, the cylinder is arranged on each of two sides of the fixed mould, a fixed block is connected above the cylinder, the movable mould is arranged above the fixed mould, the fixed blocks are arranged on two sides of the movable mould, the vertical rod is fixed in the middle of the movable mould, the tail end of the vertical rod is embedded in the channel, a groove is formed in the surface of the movable mould, the convex mould is arranged below the movable mould, an inlet, and the inserted block is embedded and installed in the inside of recess, the conveying pipeline has all been seted up to the inside of inserted block and movable mould, and the conveying pipeline is located the below of inlet pipe, the bolt is installed to the top of movable mould, and the terminal embedded the installing in the inside of inserted block of bolt.

Preferably, the connecting rod is set to be a U-shaped structure, the connecting rod and the fixed die form a telescopic structure through a spring, and the springs are arranged in the fixed die at equal intervals.

Preferably, the top block is connected with the clamping groove in a clamping manner, and the number of the top blocks is 2 about the center point of the connecting rod.

Preferably, the vertical rod and the channel form a sliding structure, and the vertical rod and the connecting rod are connected in a clamping manner.

Preferably, the male die and the movable die form a disassembly and assembly structure, and the central line of the material conveying pipe inside the male die and the central line of the material feeding pipe are located on the same vertical longitudinal line.

Preferably, the inserted block is connected with the groove in a clamping manner, the inserted block is in threaded connection with the bolt, and 2 inserted blocks are symmetrically arranged around the center point of the male die.

Compared with the prior art, the beneficial effects of the utility model are that: the plastic mold for the lower housing of the electric tool,

1. the die cavities are symmetrically arranged in the fixed die, each die cavity is correspondingly provided with the feeding pipe, and the blank is injected into the corresponding die cavity from the feeding pipes, so that the production work of the lower machine shell of the electric tool can be carried out in units, and the production efficiency of the lower machine shell of the electric tool is effectively improved;

2. the ejector block is arranged in the die cavity, the formed shell can be stably pushed out by utilizing the elastic force of the spring on one side of the connecting rod when the die is opened, the phenomenon that the shell is adhered in the die cavity is avoided, the stability of the movable die during up-and-down movement can be improved by the vertical rod arranged in the channel, and the phenomenon of position deviation during die closing is avoided;

3. the terrace die is whole can follow the surface dismantlement of movable mould and get off, through carrying out the dismouting between terrace die and the movable mould, is convenient for carry out the production work of casing under the electric tool of different shape size, has increased the flexibility in the device use, adopts the mounting means of inserted block in the recess inside, can increase the terrace die in movable mould surface mounting's stability, avoids appearing becoming flexible in the use.

Drawings

FIG. 1 is a schematic front sectional view of the present invention;

FIG. 2 is a schematic view of the structure of the movable mold and the male mold of the present invention;

FIG. 3 is a schematic view of the top view structure of the mold cavity and the top block of the present invention;

fig. 4 is the schematic view of the three-dimensional structure of the male die and the insert block.

In the figure: 1. fixing a mold; 2. a mold cavity; 3. a card slot; 4. a spring; 5. a connecting rod; 6. a top block; 7. a channel; 8. a cylinder; 9. a fixed block; 10. moving the mold; 11. a vertical rod; 12. a groove; 13. a male die; 14. Inserting a block; 15. a feed pipe; 16. a delivery pipe; 17. and (4) bolts.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a plastic mould for a lower machine shell of an electric tool comprises a fixed mould 1, a mould cavity 2, a clamping groove 3, a spring 4, a connecting rod 5, a top block 6, a channel 7, a cylinder 8, a fixed block 9, a movable mould 10, a vertical rod 11, a groove 12, a male mould 13, an inserting block 14, a feeding pipe 15, a conveying pipeline 16 and a bolt 17, wherein the mould cavity 2 is arranged inside the upper part of the fixed mould 1, the clamping groove 3 is arranged on the inner wall surface of the mould cavity 2, the spring 4 is arranged inside the lower part of the fixed mould 1, the connecting rod 5 is connected above the spring 4, the top block 6 is fixed above the connecting rod 5, the top block 6 is positioned inside the mould cavity 2, the channel 7 is arranged inside the fixed mould 1, the cylinders 8 are arranged on two sides of the fixed mould 1, the fixed blocks 9 are connected above the cylinders 8, the movable mould 10 is arranged above the fixed mould 1, the fixed, the tail end of a vertical rod 11 is embedded in the channel 7, a groove 12 is formed in the surface of a movable die 10, a male die 13 is arranged below the movable die 10, a feeding pipe 15 is arranged on the upper surface of the movable die 10, an insert block 14 is fixed above the male die 13, the insert block 14 is embedded in the groove 12, feed conveying pipes 16 are arranged in the insert block 14 and the movable die 10, the feed conveying pipes 16 are located below the feeding pipe 15, a bolt 17 is arranged above the movable die 10, and the tail end of the bolt 17 is embedded in the insert block 14;

the connecting rod 5 is of a U-shaped structure, the connecting rod 5 and the fixed die 1 form a telescopic structure through the springs 4, the springs 4 are arranged in the fixed die 1 at equal intervals, and the springs 4 arranged at equal intervals can drive the connecting rod 5 to restore to an initial position after the vertical rods 11 are disengaged from the surface of the connecting rod 5, so that the convenience in the process of taking out the molded shell is improved;

the ejector blocks 6 are connected with the clamping grooves 3 in a clamping mode, 2 ejector blocks 6 are symmetrically arranged about the central point of the connecting rod 5, the symmetrically arranged ejector blocks 6 are respectively located in the corresponding die cavities 2, molded shells in different die cavities 2 can be ejected out simultaneously, and the phenomenon that the shells are adhered to the inner portions of the die cavities 2 is avoided;

the vertical rod 11 and the channel 7 form a sliding structure, the vertical rod 11 is connected with the connecting rod 5 in a clamping manner, the connecting rod 5 is conveniently pushed to move by the sliding of the vertical rod 11 in the channel 7, meanwhile, the stability of the fixed die 1 and the movable die 10 in the opening and closing processes is also improved, the movable die 10 is prevented from shifting, and the processing quality of the shell is ensured;

the male die 13 and the movable die 10 form a dismounting and mounting structure, the central line of a material conveying pipe 16 inside the male die 13 and the central line of a material inlet pipe 15 are positioned on the same longitudinal vertical line, the male die 13 and the movable die 10 are dismounted, so that the production work of shells with different shapes and sizes is facilitated, and the blank injected into the material inlet pipe 15 can smoothly enter the die cavity 2 by the arrangement mode that the central line of the material conveying pipe 16 and the central line of the material inlet pipe 15 are positioned on the same longitudinal vertical line;

the insert block 14 is connected with the groove 12 in a clamping manner, the insert block 14 is in threaded connection with the

bolt

17, 2 insert blocks 14 are symmetrically arranged about the center point of the male die 13, and the installation mode that the insert block 14 is clamped in the groove 12 is adopted, so that the stability of the male die 13 on the surface of the movable die 10 can be improved, the phenomenon that the male die 13 is loosened in the using process is avoided, and meanwhile, the convenience of replacement and maintenance of the male die 13 is improved;

the working principle is as follows: when the plastic mold for the lower case of the electric tool is used, as shown in fig. 1-4, during processing, firstly, the cylinder 8 is started, the fixed block 9 and the movable mold 10 are pulled by the cylinder 8 to move towards the direction of the fixed mold 1, the vertical rod 11 continuously moves downwards in the channel 7 during the moving of the movable mold 10, when the vertical rod 11 is clamped on the surface of the connecting rod 5, the connecting rod 5 is pushed to continuously move downwards, the spring 4 contracts to generate displacement, the top block 6 is synchronously clamped into the clamping groove 3, the fixed mold 1 and the movable mold 10 are closed together, a blank is injected into the conveying pipe 16 from the feeding pipe 15 and finally enters the mold cavity 2, the blank forms the required lower case of the electric tool by utilizing the gap between the mold cavity 2 and the male mold 13, after cooling is completed, the cylinder 8 is driven, the movable mold 10 is separated towards the fixed mold 1, the vertical rod 11 is separated from the surface of, the ejector block 6 can be driven to be disengaged from the clamping groove 3 by utilizing the reset action of the spring 4, and the shell formed in the die cavity 2 is ejected out at the moment, so that the processed shell can be easily taken out;

when the terrace die 13 of different shapes and size need to be changed, will screw out bolt 17 from the inside of inserted block 14 earlier, then stimulate terrace die 13 downwards, make inserted block 14 break away from the block from the inside of recess 12, can wholly dismantle inserted block 14, the operation is very simple, simultaneously through the inside of injecting into corresponding inlet pipe 15 with different colours and the blank of performance, can carry out the production work of different kinds of electric tool lower casing, the flexibility in the device use has been improved, holistic practicality has been increased.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an electric tool lower casing plastic mould, includes cover half (1), cylinder (8), movable mould (10), montant (11) and terrace die (13), its characterized in that: the die cavity (2) is formed in the upper portion of the fixed die (1), the clamping groove (3) is formed in the inner wall surface of the die cavity (2), the spring (4) is arranged inside the lower portion of the fixed die (1), the connecting rod (5) is connected above the spring (4), the ejector block (6) is fixed above the connecting rod (5), the ejector block (6) is located inside the die cavity (2), the channel (7) is formed inside the fixed die (1), the air cylinders (8) are arranged on two sides of the fixed die (1), the fixing blocks (9) are connected above the air cylinders (8), the movable die (10) is arranged above the fixed die (1), the fixing blocks (9) are arranged on two sides of the movable die (10), the vertical rod (11) is fixed in the middle of the movable die (10), and the tail end of the vertical rod (11) is embedded in the channel (7), the surface of movable mould (10) is seted up flutedly (12), and terrace die (13) are installed to the below of movable mould (10) to the upper surface of movable mould (10) is provided with inlet pipe (15), the top of terrace die (13) is fixed with inserted block (14), and the inside at recess (12) is installed to inserted block (14) embedded, conveying pipeline (16) have all been seted up to the inside of inserted block (14) and movable mould (10), and conveying pipeline (16) are located the below of inlet pipe (15), bolt (17) are installed to the top of movable mould (10), and the terminal embedded inside of installing at inserted block (14) of bolt (17).

2. The plastic mold for lower housing of electric tool as claimed in claim 1, wherein: connecting rod (5) set up to "U" shape structure, and connecting rod (5) constitute extending structure through spring (4) and cover half (1) to the inside of cover half (1) is equidistant to be provided with spring (4).

3. The plastic mold for lower housing of electric tool as claimed in claim 1, wherein: the top block (6) is connected with the clamping groove (3) in a clamping mode, and 2 top blocks (6) are symmetrically arranged on the center point of the connecting rod (5).

4. The plastic mold for lower housing of electric tool as claimed in claim 1, wherein: the vertical rod (11) and the channel (7) form a sliding structure, and the vertical rod (11) is connected with the connecting rod (5) in a clamping manner.

5. The plastic mold for lower housing of electric tool as claimed in claim 1, wherein: the male die (13) and the movable die (10) form a disassembly and assembly structure, and the central line of a material conveying pipe (16) inside the male die (13) and the central line of the material feeding pipe (15) are located on the same vertical longitudinal line.

6. The plastic mold for lower housing of electric tool as claimed in claim 1, wherein: the insert block (14) is connected with the groove (12) in a clamping mode, the insert block (14) is in threaded connection with the bolt (17), and 2 insert blocks (14) are symmetrically arranged around the center point of the male die (13).