CN209754792U - Injection molding frock of polishing - Google Patents

Abstract

A polishing tool for injection molding parts belongs to the field of injection molding part production and processing, and comprises a handle and a grinding wheel, wherein the lower end of the handle is connected with a top plate through a connecting rod, outer plates are fixed at the left end and the right end of the lower side of the top plate, inner plates are arranged on the inner sides of the two outer plates, a roller is arranged between the inner plates at the two sides and the outer plates at the two sides, the grinding wheel is arranged between the two inner plates through a rotating shaft at the centers of the two sides; a downward motor is arranged on the inner side of the left inner plate, and a motor gear matched with the grinding wheel gear is arranged at the lower end of a motor shaft; the center of the roller is positioned under the center of the grinding wheel, the radius of the grinding wheel is larger than that of the roller, and the sum of the center distance between the grinding wheel and the roller and the radius of the roller is larger than that of the grinding wheel. This frock can effectively polish injection molding deckle edge and stub bar, and the parallel and level of polishing can not lead to the fact the damage to injection molding itself, and the simple operation is very easily handed, low in cost, and the flexibility is good, and the commonality is strong, through adjusting vaulting pole length, can control the degree of depth of polishing, can be applied to different requirements and polish.

Description

Injection molding frock of polishing

Technical Field

The utility model belongs to injection molding production and processing field, specifically speaking are injection molding frock of polishing.

Background

Injection molding is a production technology for manufacturing thermoplastic plastics or thermosetting plastics into plastic products with various shapes by using a plastic molding die, the injection molding die is indispensable in the injection molding technology, and the injection molding production technology is widely applied. The injection product through injection moulding mould production often has the existence of burr in mould separation edge, when using, can take place the condition of scratch arm, must carry out the later stage manual work before dispatching from the factory and get rid of the burr and polish, and has the stub bar of reserving in the mouth position of moulding plastics, also needs the later stage to grind flat. At present to injection moulding product's deckle edge and stub bar, it polishes through the handheld ordinary grinding apparatus of workman usually, and this requires very high to staff's technical and proficiency, otherwise can appear deckle edge and stub bar and polish not parallel and level, influence pleasing to the eye, can polish injection molding body surface even, lead to product damage, the unqualified problem of quality. The automatic polishing equipment has high manufacturing cost and poor universality, and can not be used for polishing burrs and stub bars of various injection molding parts.

SUMMERY OF THE UTILITY MODEL

When solving present injection molding deckle edge and stub bar manual work and polishing, deckle edge often can appear polishing not parallel and level, and it is pleasing to the eye to influence, can grind the injection molding body even, leads to product damage, the unqualified problem of quality and uses the automatic problem that equipment cost is high, the commonality is poor of polishing, the utility model provides an injection molding frock of polishing.

The utility model discloses a realize through following technical scheme.

A polishing tool for injection molding parts is characterized by comprising a handle and a cylindrical grinding wheel on the upper portion, wherein the lower end of the handle is connected with a horizontal top plate through a vertical connecting rod, vertical outer plates are fixed at the left end and the right end of the lower side of the top plate, vertical inner plates are arranged on the inner sides of the two outer plates, a roller is arranged between the inner plates and the outer plates on the two sides, the grinding wheel is arranged between the two inner plates through rotating shafts in the centers of the two sides, and a grinding wheel gear which is a bevel gear is arranged on the rotating shaft on the left; a downward motor is arranged on the inner side of the left inner plate, and a motor gear matched with the grinding wheel gear is arranged at the lower end of a motor shaft; the center of the roller is positioned under the center of the grinding wheel, the radius of the grinding wheel is larger than that of the roller, and the sum of the center distance between the grinding wheel and the roller and the radius of the roller is larger than that of the grinding wheel.

The injection molding frock of polishing, wherein, handle internally mounted have the battery, the battery has connected gradually shift knob and the motor of fixing on the connecting rod through the electric wire.

The injection molding frock of polishing, wherein, the roof front side be fixed with two telescopic vaulting poles towards lower direction, the spherical stay head is installed to the vaulting pole bottom.

The injection molding frock of polishing, wherein, the vaulting pole including fix the hollow outer pole on the roof and the interior pole of the fixed head of propping of lower extreme, interior pole is inserted inside the outer pole and fixed through two jackscrews.

The utility model has the advantages that: 1. the injection molding part rough edges and the stub bars can be effectively polished to be flush, the uneven phenomenon cannot occur, the injection molding part cannot be damaged, the operation is convenient, and the operation is extremely easy to operate; 2. the structure is simple, the manufacturing cost is low, the flexibility is good, the grinding machine can be applied to grinding burrs and stub bars of various injection molding pieces, the universality is strong, and the use is safe and reliable; 3. application scope is wide, can adjust the length of vaulting pole, can adjust the emery wheel position of polishing from top to bottom, can control the degree of depth that deckle edge and stub bar were polished, can be applied to polishing of deckle edge and stub bar of different requirements.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the structure of the present invention.

Fig. 3 is a schematic side view of the present invention.

Fig. 4 is a schematic view of the stay bar structure of the present invention.

In the drawings: 1. the device comprises a handle, 2, a connecting rod, 3, a top plate, 4, an inner plate, 5, an outer plate, 6, a grinding wheel, 7, a roller, 8, a grinding wheel gear, 9, a motor, 10, a motor gear, 11, a support rod, 12, a support head, 13, a battery, 14, a switch button, 15, an outer rod, 16, an inner rod, 17 and a jackscrew.

Detailed Description

The following describes the embodiments of the present invention with reference to the accompanying drawings.

As shown in the attached drawings, the injection molding part polishing tool comprises a handle 1 and a cylindrical grinding wheel 6 on the upper portion, a battery 13 is installed in the handle 1, the lower end of the handle 1 is connected with a horizontal top plate 3 through a vertical connecting rod 2, a switch button 14 is installed on the connecting rod 2, vertical outer plates 5 are fixed at the left end and the right end of the lower side of the top plate 3, vertical inner plates 4 are installed on the inner sides of the two outer plates 5, rollers 7 are installed between the inner plates 4 and the outer plates 5 on the two sides, the cylindrical grinding wheel 6 is installed between the two inner plates 4 through a rotating shaft in the center of the two sides, and a grinding wheel gear 8 which; a downward motor 9 is arranged on the inner side of the left inner plate 4, and a motor gear 10 which is matched with the grinding wheel gear 8 and is also a bevel gear is arranged at the lower end of the shaft of the motor 9; the center of the roller 7 is positioned right below the center of the grinding wheel 6, the radius of the grinding wheel 6 is larger than that of the roller 7, and the sum of the center distance between the grinding wheel 6 and the roller 7 and the radius of the roller 7 is larger than that of the grinding wheel 6. The battery 13 is connected in turn to the switch knob 14 and the motor 9 by means of electric wires, which are routed from inside the rod 2. Two telescopic supporting rods 11 which are forwards and downwards are fixed on the front side of the top plate 3, a spherical supporting head 12 is installed at the bottom end of each supporting rod 11, each supporting rod 11 comprises a hollow outer rod 15 fixed on the top plate 3 and an inner rod 16 of which the lower end is fixed with the supporting head 12, and the inner rod 16 is inserted into the outer rod 15 and fixed through two jackscrews 17.

When the injection molding part grinding tool is used, the length of the support rod 11 is adjusted (two jackscrews 17 are loosened, the inner rod 16 is pushed in, and the two jackscrews 17 are tightened) through the grinding depth of burrs or stub bars, the handle 1 is vertically held at first and is placed in front of the burrs or the stub bars, the roller 7 is contacted with the surface of the injection molding part, as the center of the roller 7 is positioned right below the center of the grinding wheel 6, the radius of the grinding wheel 6 is larger than that of the roller 7, the sum of the center distance between the grinding wheel 6 and the roller 7 and the radius of the roller 7 is larger than that of the grinding wheel 6, the outer surface of the grinding wheel 6 is not contacted with the surface of the injection molding part, the switch button 14 is started, the motor 9 drives the grinding wheel 6 to rotate through the motor gear 10 and the grinding wheel gear 8, then the tool is inclined forwards until the roller 7 and the two spherical support heads 12 are simultaneously contacted with the surface of the injection molding, the pulling handle drives the whole tool to roll along the direction of the rough edges or the stub bars, and the tool can be polished and ground flat when passing through the protruding rough edges or the stub bars, so that the tool is convenient and fast to use.

This injection molding frock of polishing can effectively polish injection molding deckle edge and stub bar, the parallel and level of polishing, and can not cause the damage to injection molding itself, the simple operation, very easily the shang shou, moreover, the steam generator is simple in structure, low in cost, the flexibility is good, can be applied to the flat grinding of multiple injection molding deckle edge and stub bar, therefore, the commonality is strong, safe and reliable in utilization, application scope is wide, can adjust the length of vaulting pole, can adjust the position of polishing from top to bottom of the emery wheel, can control the degree of depth that deckle edge and stub bar polished, can be applied to polishing of deckle edge and.

Claims (4)

1. A polishing tool for injection molding parts is characterized by comprising a handle (1) and a cylindrical grinding wheel (6) which are arranged on the upper portion, wherein the lower end of the handle (1) is connected with a horizontal top plate (3) through a vertical connecting rod (2), the left end and the right end of the lower side of the top plate (3) are respectively fixed with a vertical outer plate (5), the inner sides of the two outer plates (5) are respectively provided with a vertical inner plate (4), a roller (7) is arranged between the inner plates (4) and the outer plates (5) on the two sides, the grinding wheel (6) is arranged between the two inner plates (4) through a rotating shaft at the centers of the two sides, and a grinding wheel gear (8) with a bevel gear is; a downward motor (9) is arranged on the inner side of the left inner plate (4), and a motor gear (10) matched with the grinding wheel gear (8) is arranged at the lower end of a shaft of the motor (9); the center of the roller (7) is positioned under the center of the grinding wheel (6), the radius of the grinding wheel (6) is larger than that of the roller (7), and the sum of the center distance between the grinding wheel (6) and the roller (7) and the radius of the roller (7) is larger than that of the grinding wheel (6).

2. The grinding tool for the injection molding parts is characterized in that a battery (13) is installed inside the handle (1), and the battery (13) is sequentially connected with a switch button (14) and a motor (9) which are fixed on the connecting rod (2) through electric wires.

3. The grinding tool for the injection molding parts is characterized in that two telescopic support rods (11) in the forward and downward direction are fixed on the front side of the top plate (3), and spherical support heads (12) are installed at the bottom ends of the support rods (11).

4. The grinding tool for the injection molding parts is characterized in that the support rods (11) comprise hollow outer rods (15) fixed on the top plate (3) and inner rods (16) of the support heads (12) fixed at the lower ends, and the inner rods (16) are inserted into the outer rods (15) and fixed through two jackscrews (17).