CN218660332U - Injection molding cooling device for internal gear of printer - Google Patents

Abstract

The utility model proposes an injection molding cooling device for the inner gear of a printer, which includes a processing table. A top plate is arranged above the processing table. One end of the top plate is fixedly connected with the processing table, the forming punch is parallel to the top plate, a hydraulic cylinder is fixedly installed on the top of the top plate, and the piston column of the hydraulic cylinder penetrates the top plate and is fixedly connected with the forming punch; A forming die is provided, the forming die is hollow, a cooling cavity is opened in the forming die, and second joints are fixedly installed on both sides of the forming die. When the utility model is in use, multiple cooling of the workpiece to be formed is realized, the cooling efficiency is effectively improved, the demoulding cycle is shortened, and it is convenient for staff to disassemble, maintain and replace the cooling elbow, which improves the practicability.

Description

An injection molding cooling device for internal gears of a printer

technical field

The utility model belongs to the technical field of injection molds, in particular to an injection cooling device for internal gears of a printer.

Background technique

Plastic gears are made of plastic and are mainly used for mechanical transmission. They are widely used in various industries such as micro motors, electronic products, auto parts, household appliances, office supplies, toys, and handicrafts. In the production process of the inner gear of the printer, manufacturers mostly use injection molds for production. The existing injection molds will accumulate a lot of heat during the injection molding process. The traditional cooling methods are mostly natural cooling and cooling water immersion. The former is more efficient. Low, the demoulding time is relatively long, which seriously delays the production progress; the latter cannot cool the molded parts uniformly, which greatly affects the molding quality, and due to the immersion of cooling water, it may cause corrosion of the mold and affect its service life, which is not conducive to The long-term development of manufacturers. In view of the above problems, we propose an injection molding cooling device for the internal gear of the printer.

Utility model content

In order to solve the above deficiencies in the prior art, the utility model proposes an injection molding cooling device for the inner gear of the printer.

The technical scheme of the utility model is realized in the following way: an injection molding cooling device for the internal gear of a printer, including a processing table, a top plate is arranged above the processing table, the top plate is parallel to the processing table, and the four corners of the bottom of the top plate are fixedly connected There is a column, the end of the column away from the top plate is fixedly connected with the processing table, a forming punch is arranged under the top plate, the forming punch is parallel to the top plate, a hydraulic cylinder is fixedly installed on the top of the top plate, and the hydraulic cylinder The piston rod penetrates the top plate and is fixedly connected with the forming punch;

A forming die is arranged below the forming punch, the forming die is hollow, a cooling cavity is provided in the forming die, second joints are fixedly installed on both sides of the forming die, and the The second joint communicates with the inside of the cooling cavity, the bottom of the forming die is coaxially provided with a disk, the disk is installed on the processing table, the top of the disk is coaxially provided with a boss, and the boss The top is provided with a plurality of support rods, the support rods are parallel to the axis of the boss, and the plurality of support rods are distributed along the periphery of the boss, and cooling elbows are arranged between the support rods, and the outer surface of the cooling elbows is It is fixedly connected with the support rod, and both sides of the disc are fixedly connected with first joints, and the first joints are respectively connected with the water inlet and the water outlet of the cooling elbow.

Preferably, four corners of the bottom of the processing table are fixedly connected with pillars, connecting rods are arranged between the pillars, and the connecting rods are fixedly connected with the pillars at both ends.

Preferably, the top of the forming punch is provided with a plurality of guide rods, the guide rods are parallel to the axis of the forming punch, and the plurality of guide rods are distributed along the periphery of the forming punch, and one end of the guide rods penetrates to the top plate On the outside, the other end of the guide rod is fixedly connected with the forming punch.

Preferably, an injection cavity is provided in the convex part of the forming punch, discharge holes are provided at the bottom of the injection cavity at intervals and at equal intervals, a feeding channel is provided at the top of the injection cavity, and the forming punch One side is fixedly connected with a third joint, and the third joint communicates with the inside of the injection molding cavity through the feed channel.

Preferably, a plurality of connecting seats are fixedly installed on the outer surface of the forming die, fastening bolts are coaxially arranged inside the connecting seats, and screw holes corresponding to the fastening bolts are provided on the top of the processing table, so that The threaded portion of the fastening bolt penetrates through the disk and is connected with the screw hole.

Preferably, a fixing slot is coaxially arranged on the boss, and a cooling fan is fixedly installed in the fixing slot, and a ventilation slot corresponding to the fixing slot is provided on the top of the processing table, and the ventilation slot and the fixing slot connected internally.

Compared with the prior art, when the utility model is in use, the second joint is used to circulate the external cooling water into the heat dissipation cavity, so as to cool down the parts to be formed in the forming die in all directions; the cooling elbow is used to It is closely attached to the outside of the heat dissipation cavity, and then the cooling water is circulated inside the cooling elbow through the first joint to speed up the heat dissipation in the heat dissipation cavity, thereby realizing multiple cooling of the molded part, effectively improving the cooling efficiency and shortening the cooling time. The demoulding cycle is shortened, and by setting the connecting seat, fastening bolts and screw holes, it is convenient for the staff to disassemble, maintain and replace the cooling elbow, which improves the practicability.

Description of drawings

The accompanying drawings are used to provide a further understanding of the utility model, and constitute a part of the description, and are used to explain the utility model together with the embodiments of the utility model, and do not constitute a limitation to the utility model. In the attached picture:

Fig. 1 is a structural schematic diagram of an injection cooling device for an internal gear of a printer proposed by the utility model.

Fig. 2 is a schematic diagram of the specific structure of the molding die, the disk and the processing table of the injection cooling device for the internal gear of the printer proposed by the utility model.

Fig. 3 is a schematic diagram of the internal structure of the molding die of the injection cooling device for the internal gear of the printer proposed by the utility model.

Fig. 4 is a schematic diagram of the internal structure of the molding punch of the injection cooling device for the internal gear of the printer proposed by the utility model.

In the figure: 1. Processing table; 2. Top plate; 3. Column; 4. Forming punch; 5. Hydraulic cylinder; 6. Forming die; 7. Connecting seat; 8. Disc; 9. Fastening bolt; 10 , boss; 11, support rod; 12, cooling elbow; 13, first joint; 14, fixing slot; 15, cooling fan; 16, screw hole; 17, ventilation groove; 18, cooling cavity; Second joint; 20, injection molding cavity; 21, discharge hole; 22, third joint; 23, feeding channel; 24, pillar; 25, guide rod; 26, connecting rod.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figures 1-4, the utility model provides a technical solution: an injection molding cooling device for the internal gear of a printer, including a processing table 1, a top plate 2 is arranged above the processing table 1, the top plate 2 is parallel to the processing table 1, and the top plate 2 The four corners of the bottom are fixedly connected with a column 3, and the end of the column 3 away from the top plate 2 is fixedly connected with the processing table 1, and a forming punch 4 is arranged under the top plate 2, and the forming punch 4 is parallel to the top plate 2, and a hydraulic cylinder is fixedly installed on the top of the top plate 2 5. The piston column of the hydraulic cylinder 5 penetrates the top plate 2 and is fixedly connected with the forming punch 4. The hydraulic cylinder 5 drives the forming punch 4 to move up and down, and cooperates with the forming die 6 to facilitate the injection molding work;

Forming die 6 is provided with forming die 6 below forming die 6, and forming die 6 is a hollow design, and is provided with cooling cavity 18 in forming die 6, and forming die 6 both sides are all fixedly installed with second joint 19, and second joint 19 communicates with the inside of the cooling cavity 18, the bottom of the forming die 6 is coaxially provided with a disk 8, the disk 8 is installed on the processing table 1, the top of the disk 8 is coaxially provided with a boss 10, and the top of the boss 10 is arranged There are a plurality of support rods 11, the support rods 11 are parallel to the axis of the boss 10, and the plurality of support rods 11 are circumferentially distributed along the edge of the boss 10, and cooling elbows 12 are arranged between the support rods 11, and the outer surface of the cooling elbow 12 is It is fixedly connected with the support rod 11, and both sides of the disk 8 are fixedly connected with the first joint 13, and the first joint 13 is respectively connected with the water inlet and the water outlet of the cooling elbow 12, and the external cooling water is circulated through the second joint 19. into the heat dissipation cavity 18, so as to cool the molded parts in the forming die 6 in all directions. By setting the cooling elbow 12 and the outside of the heat dissipation cavity 18, the first joint 13 is used to seal the cooling elbow. Cooling water is fed into the internal circulation of 12 to speed up the dissipation of heat in the heat dissipation cavity 18, thereby realizing multiple cooling of the workpiece to be formed, effectively improving the cooling efficiency and shortening the demoulding period.

Furthermore, the four corners of the bottom of the processing table 1 are fixedly connected with pillars 24, and connecting rods 26 are arranged between the pillars 24. The connecting rods 26 are fixedly connected with the pillars 24 at both ends, and the processing table 1 and its connecting parts are supported by the pillars 24. , by setting the connecting rod 26, the support strength of the pillar 24 is enhanced, and the stability of the structure is improved.

Further, the top of the forming punch 4 is provided with a plurality of guide rods 25, the guide rods 25 are parallel to the axis of the forming punch 4, and a plurality of guide rods 25 are circumferentially distributed along the edge of the forming punch 4, and one end of the guide rods 25 penetrates to the On the outside of the top plate 2, the other end of the guide rod 25 is fixedly connected to the forming punch 4. By setting the guide rod 25, the forming punch 4 will not be offset when it moves up and down, which further improves the stability of the structure.

Furthermore, an injection cavity 20 is provided in the convex portion of the forming punch 4, and discharge holes 21 are provided at the bottom of the injection cavity 20 at intervals and at equal intervals, and a feeding channel 23 is provided at the top of the injection cavity 20, and the forming punch 4 is The side is fixedly connected with a third joint 22, the third joint 22 communicates with the inside of the injection molding cavity 20 through the feed channel 23, and is connected with the discharge pipe of the external injection molding machine through the third joint 22, and the material is passed into the injection molding cavity 20, and then pass through the discharge hole 21 into the forming die 6, thereby realizing the injection molding work.

Furthermore, a plurality of connecting seats 7 are fixedly installed on the outer surface of the forming die 6, and fastening bolts 9 are coaxially arranged inside the connecting seats 7, and screw holes 16 corresponding to the fastening bolts 9 are opened on the top of the processing table 1, The threaded part of the fastening bolt 9 runs through the disc 8 and is connected with the screw hole 16. By setting the connecting seat 7, the fastening bolt 9 and the screw hole 16, it is convenient to disassemble and assemble the forming die 6 and the disc 8, which is convenient for the staff Perform maintenance on its interior.

Furthermore, a fixed groove 14 is coaxially arranged on the boss 10, and a cooling fan 15 is fixedly installed in the fixed groove 14. The top of the processing table 1 is provided with a ventilation groove 17 corresponding to the fixed groove 14, and the ventilation groove 17 is connected with the fixed groove. 14 is connected internally, and the cooling fan 15 in the fixed groove 14 is used to discharge the heat accumulated in the forming die 6 through the ventilation groove 17, which further improves the cooling effect.

Specifically, when the utility model is in use, the staff first connects the third joint 22 with the discharge pipe of the injection molding machine, then connects the first joint 13 and the second joint 19 with the external cooling water source, and then starts the hydraulic cylinder 5 Drive the forming punch 4 downward to contact the forming die 6, the material passes through the feed channel 23, the injection cavity 20 passes through the discharge hole 21, so as to realize the injection molding work, and then starts the external water pump to pass the cooling water source respectively Into the heat dissipation cavity 18 and the cooling elbow 12, under the circulating flow of the cooling water source, the heat is quickly dissipated, thus realizing multiple cooling of the workpiece to be formed.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (6)

1. An injection molding cooling device for internal gears of a printer, comprising a processing table (1), characterized in that a top plate (2) is arranged above the processing table (1), and the top plate (2) and the processing table (1) Parallel, the four corners of the bottom of the top plate (2) are fixedly connected with columns (3), the end of the column (3) away from the top plate (2) is fixedly connected with the processing table (1), and the bottom of the top plate (2) is provided with Forming punch (4), the forming punch (4) is parallel to the top plate (2), the top of the top plate (2) is fixed with a hydraulic cylinder (5), and the piston rod of the hydraulic cylinder (5) runs through the top plate (2) Fixed connection with forming punch (4); A forming die (6) is arranged below the forming punch (4), the forming die (6) is hollow, and a cooling cavity (18) is opened in the forming die (6). Both sides of the forming die (6) are fixedly installed with second joints (19), the second joints (19) communicate with the inside of the heat dissipation cavity (18), and the bottom of the forming die (6) is arranged coaxially There is a disk (8), the disk (8) is installed on the processing table (1), the top of the disk (8) is coaxially provided with a boss (10), and the top of the boss (10) is arranged There are a plurality of support rods (11), the support rods (11) are parallel to the axis of the boss (10), and the plurality of support rods (11) are circumferentially distributed along the edge of the boss (10), the support rods (11) ) is provided with a cooling elbow (12), the outer surface of the cooling elbow (12) is fixedly connected to the support rod (11), and the first joint (13) is fixedly connected to both sides of the disc (8) , the first joint (13) is respectively connected to the water inlet and the water outlet of the cooling elbow (12). 2. The injection molding cooling device for the internal gear of the printer according to claim 1, characterized in that, the four corners of the bottom of the processing table (1) are fixedly connected with pillars (24), and the pillars (24) are provided with connection A rod (26), the connecting rod (26) is fixedly connected with the two ends of the pillars (24). 3. The injection molding cooling device for the internal gear of the printer according to claim 1, characterized in that, the top of the forming punch (4) is provided with a plurality of guide rods (25), and the guide rods (25) and the forming punch The axes of the mold (4) are parallel, and a plurality of guide rods (25) are circumferentially distributed along the edge of the forming punch (4). One end of the guide rods (25) penetrates to the outside of the top plate (2). The guide rods (25) The other end is fixedly connected with the forming punch (4). 4. The injection molding cooling device for the internal gear of the printer according to claim 1, characterized in that an injection cavity (20) is opened in the convex part of the forming punch (4), and the bottom of the injection cavity (20) Discharge holes (21) are intermittently and equally spaced, a feed channel (23) is provided on the top of the injection cavity (20), and a third joint (22) is fixedly connected to one side of the forming punch (4), The third joint (22) communicates with the inside of the injection molding cavity (20) through the feed channel (23). 5. The injection molding cooling device for the inner gear of the printer according to claim 1, characterized in that, the outer surface of the forming die (6) is fixedly installed with a plurality of connecting seats (7), and the inside of the connecting seat (7) A fastening bolt (9) is arranged coaxially, and a screw hole (16) corresponding to the fastening bolt (9) is opened on the top of the processing table (1), and the threaded portion of the fastening bolt (9) runs through the circle The disc (8) is connected with the screw hole (16). 6. The injection molding cooling device for the internal gear of the printer according to claim 1, characterized in that, a fixing groove (14) is coaxially arranged on the boss (10), and a fixed groove (14) is fixedly installed in the fixing groove (14). A cooling fan (15), the top of the processing table (1) is provided with a ventilation slot (17) corresponding to the fixing slot (14), and the ventilation slot (17) communicates with the inside of the fixing slot (14).

Images