An injection mold positioning mechanism

Abstract

The present invention relates to the technical field of mold positioning, and particularly relates to an injection mold positioning mechanism, which includes a connecting plate. The number of the connecting plates is set to two and they are arranged symmetrically. The rear ends of the two connecting plates are controlled to approach or move away from each other by a telescopic mechanism. The front ends of the connecting plates are fixedly connected with a bottom plate. A plurality of limiting blocks are slidably installed on the upper end surface of the bottom plate along both side directions. An elastic mechanism is arranged between one end of the limiting block and the edge of the bottom plate. A pressing plate is installed above the bottom plate through a lifting mechanism. The present invention can stably clamp the lower molds with irregular shapes on both sides, and the contact positions with the lower molds can absorb heat well, preventing the influence on the heat dissipation of the lower molds and further affecting the cooling and forming efficiency of the products. It has a heat dissipation effect and can clean the dust on the surface of the lower molds while dissipating heat, with various functions.

Description

Technical Field

[0001] The present invention relates to the technical field of mold positioning, and particularly relates to an injection mold positioning mechanism. Background Art

[0002] Injection molding, also known as injection mold molding, is a molding method that combines injection and molding. The advantages of the injection molding method are fast production speed, high efficiency, automated operation, a variety of flower patterns and colors, the shape can range from simple to complex, the size can range from large to small, and the product size is precise, the product is easy to update, and it can form complex-shaped parts. Injection molding is suitable for forming processing fields such as mass production and complex-shaped products. Injection molds are required in injection molding.

[0003] During the injection molding process of the mold, it is necessary to position the lower mold. The existing positioning mechanism is often a structure with a cylinder connecting a clamping plate, which can only be used in the case of clamping a relatively flat side. The shape of the clamped lower mold is limited. At the same time, it does not have a heat dissipation function. Since the two sides of the lower mold are wrapped during clamping, the heat dissipation of the lower mold will also be affected during clamping. At the same time, there is no effect of assisting heat dissipation, and the function is single, only used for the positioning of the mold. Summary of the Invention

[0004] The purpose of the present invention is to solve the disadvantages in the background art and propose an injection mold positioning mechanism.

[0005] To achieve the above object, the technical solution adopted by the present invention is: an injection mold positioning mechanism, including a connecting plate. The number of the connecting plates is set to two and they are symmetrically arranged. The rear ends of the two connecting plates are controlled to approach or move away from each other by a telescopic mechanism. The front end of the connecting plate is fixedly connected with a bottom plate. A plurality of limit blocks are slidably installed on the upper end surface of the bottom plate along both side directions. An elastic mechanism is arranged between one end of the limit block and the edge of the bottom plate. A pressing plate is installed above the bottom plate through a lifting mechanism. The lifting mechanism controls the pressing plate to move down and press on the surface of the limit block to stabilize the limit block. A suction mechanism is arranged in front of the telescopic mechanism.

[0006] Preferably, a chute is opened on the upper end surface of the bottom plate. The limit block is slidably clamped inside the chute. The limit blocks are arranged at equal intervals in the front-rear direction.

[0007] Preferably, the elastic mechanism includes a guide rod fixedly connected to one end of the limit block and a compression spring sleeved on the outer surface of the guide rod. One end of the guide rod slidably penetrates the side wall of the bottom plate and is fixedly connected with a limit head.

[0008] Preferably, a sliding opening is formed through the outer surface of the limiting block, a slider is inserted into the inner side of the sliding opening, a convex block protrudes from the lower end of the slider, the convex block and the slider are jointly and slidably installed inside the sliding opening, a through hole is formed through the outer surface of the slider, and a connecting water pipe is movably penetrated through the inner sides of a plurality of the through holes.

[0009] Preferably, the telescopic mechanism includes a second telescopic cylinder, the two telescopic ends of the second telescopic cylinder are respectively fixedly connected to the rear end of the connecting plate, and a mounting plate is fixedly installed on the outer surface of the second telescopic cylinder.

[0010] Preferably, the lifting mechanism includes a fixed steel fixedly installed on the side edge of the bottom plate and a first telescopic cylinder fixedly installed inside the fixed steel, and the lower telescopic end of the first telescopic cylinder is fixedly installed on the upper end surface of the pressing plate.

[0011] Preferably, a plurality of equally spaced pressing teeth protrude from the lower end surface of the pressing plate, a plurality of equally spaced anti-slip teeth protrude from the upper end surface of the limiting block, and the pressing teeth and the anti-slip teeth are engaged after the pressing plate moves downward.

[0012] Preferably, the suction mechanism includes a mounting chassis fixedly installed at the front end of the mounting plate and a suction box movably installed at the front end of the mounting chassis through an adjusting mechanism. A plurality of branch pipes communicate with the lower end surface of the suction box, a main pipe communicates with the lower ends of the plurality of branch pipes, a connecting channel communicates with the outer surface of the main pipe, a fixed shell is connected to the rear end of the connecting channel, a motor is fixedly installed on the inner wall of the fixed shell through a fixing block, a fan blade is fixedly installed at the output shaft end of the motor, an insertion opening is formed in the rear end surface of the suction box, an insertion frame is slidably inserted into the inner side of the insertion opening, and a filter screen is fixedly installed on the surface of the insertion frame.

[0013] Preferably, the adjusting mechanism includes a vertical slide rail fixedly installed at the front end of the mounting chassis and a lifting block slidably installed along the vertical direction inside the vertical slide rail. A plurality of equally spaced first limiting holes are formed through the front end surface of the lifting block, a plurality of equally spaced second limiting holes are formed through the front end surface of the vertical slide rail, a limiting bolt penetrates through the inner sides of one of the first limiting holes and the second limiting holes, and a steering mechanism is arranged between the lifting block and the lower end surface of the suction box.

[0014] Preferably, the steering mechanism includes connecting shafts fixedly connected to the outer surfaces of both sides of the lifting block and a concave seat fixedly connected to the lower end surface of the suction box. The concave seat sleeves both sides of the lifting block, and the connecting shafts slidably penetrate through the inner sides of the concave seat, and locking nuts in threaded fit are sleeved at both ends of the connecting shafts.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. It is installed on the workbench through the mounting plate. The lower mold is located between the limiting blocks on both sides. By controlling the contraction of the second telescopic cylinder, the connecting plates on both sides move closer to each other. For the irregular sides of the lower mold, the limiting blocks can slide along the inner side of the chute to ensure that the ends are attached to the sides of the lower mold. During positioning, control the first telescopic cylinder to extend, so that the pressing plate moves down. With the cooperation of the pressing teeth and the anti-slip teeth, the loosening of the limiting blocks is prevented. Therefore, it can flexibly adapt to the side shape of the lower mold for clamping and positioning, which is relatively flexible.

[0017] 2. During the injection molding process of the lower mold, by injecting cold water into the inner side of the connecting water pipe, the water flowing in the connecting water pipe absorbs and takes away the heat in the limiting blocks, thus playing a role in assisting the lower mold to dissipate heat. When the limiting blocks slide horizontally, the sliders slide horizontally along the inner side of the sliding opening, preventing the relative translation between the limiting blocks from being hindered due to the existence of the connecting water pipe, which has the effect of promoting the rapid cooling and forming of the products in the mold.

[0018] 3. By controlling the operation of the motor, the fan blades rotate, sucking air into the upper end of the suction box. After passing through the branch pipes, it enters the main pipe, and then enters the fixed shell through the connecting channel and is discharged from the rear, playing a role in sucking air. By unscrewing the limit bolt, the lifting block can slide up and down along the inner side of the vertical sliding rail. After screwing on the limit bolt again, the height of the suction box can be adjusted to flexibly adapt to the use of molds of different heights. After loosening the locking nut, the concave seat can be rotated around the connecting shaft. After tightening the locking nut again, the concave seat is fixed, achieving the purpose of adjusting the air suction angle, making it more flexible to use, ensuring the air flow around the lower mold, and further achieving the heat dissipation effect.

[0019] 4. During the suction process, the dust on the surface of the lower mold can be sucked into the suction box and blocked by the filter net on the inner side. By moving it backward, the insertion frame can be pulled out to facilitate the later cleaning and maintenance of the filter net, ensuring the smooth air flow during later use. Therefore, it also has the function of dust removal, and the functions are relatively diverse. Description of the Drawings

[0020] Figure 1 It is a schematic structural diagram of a positioning mechanism of an injection mold of the present invention;

[0021] Figure 2 It is a schematic partial structural diagram of a positioning mechanism of an injection mold of the present invention;

[0022] Figure 3 It is a schematic diagram at one side bottom plate of a positioning mechanism of an injection mold of the present invention;

[0023] Figure 4 It is a schematic diagram at the limiting block of a positioning mechanism of an injection mold of the present invention;

[0024] Figure 5Partial sectional view of the limit block of a positioning mechanism for an injection mold according to the present invention;

[0025] Figure 6 Schematic diagram of a pressing plate of a positioning mechanism for an injection mold according to the present invention;

[0026] Figure 7 Schematic diagram of the suction mechanism of a positioning mechanism for an injection mold according to the present invention;

[0027] Figure 8 For a positioning mechanism of an injection mold according to the present invention Figure 7 Enlarged view of part A in

[0028] Figure 9 Another perspective schematic diagram of the suction mechanism of a positioning mechanism for an injection mold according to the present invention;

[0029] Figure 10 Cross-sectional view of the fixed shell of a positioning mechanism for an injection mold according to the present invention.

[0030] 1. Connecting plate; 2. Bottom plate; 3. Pressing plate; 4. Pressing teeth; 5. Fixed steel; 6. First telescopic cylinder; 7. Chute; 8. Limit block; 9. Guide rod; 10. Compression spring; 11. Limit head; 12. Sliding opening; 13. Slide block; 14. Convex block; 15. Through hole; 16. Connecting water pipe; 17. Anti-slip teeth; 18. Installation base frame; 19. Vertical slide rail; 20. Lifting block; 21. First limit hole; 22. Second limit hole; 23. Limit bolt; 24. Suction box; 25. Concave seat; 26. Connecting shaft; 27. Locking nut; 28. Branch pipe; 29. Main pipe; 30. Connecting channel; 31. Fixed shell; 32. Insertion frame; 33. Filter screen; 34. Socket; 35. Motor; 36. Fan blade; 37. Fixed block; 38. Second telescopic cylinder; 39. Installation plate. Detailed implementation manners

[0031] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations.

[0032] As Figures 1 - 10 shown, a positioning mechanism for an injection mold includes a connecting plate 1. The number of the connecting plates 1 is set to two and they are symmetrically arranged. The distance between the rear ends of the two connecting plates 1 is controlled to be closer or farther away by a telescopic mechanism. The front end of the connecting plate 1 is fixedly connected with a bottom plate 2. A plurality of limit blocks 8 are slidably installed on the upper end surface of the bottom plate 2 along both sides. An elastic mechanism is arranged between one end of the limit block 8 and the edge of the bottom plate 2. A pressing plate 3 is installed above the bottom plate 2 through a lifting mechanism. The lifting mechanism controls the pressing plate 3 to move downward and press on the surface of the limit block 8 to stabilize the limit block 8. A suction mechanism is arranged in front of the telescopic mechanism.

[0033] A chute 7 is provided on the upper end surface of the bottom plate 2, and a limiting block 8 is slidably clamped inside the chute 7. The limiting blocks 8 are arranged at equal intervals in the front-back direction, and a plurality of limiting blocks 8 can adapt to the irregular side surface of the lower mold.

[0034] The elastic mechanism includes a guide rod 9 fixedly connected to one end of the limiting block 8 and a compression spring 10 sleeved on the outer surface of the guide rod 9. One end of the guide rod 9 slidably penetrates through the side wall of the bottom plate 2 and is fixedly connected to a limiting head 11, and the limiting head 11 can prevent the guide rod 9 from separating from one side of the bottom plate 2.

[0035] A sliding opening 12 is formed through the outer surface of the limiting block 8, and a slider 13 is inserted inside the sliding opening 12. A convex block 14 protrudes from the lower end of the slider 13. The convex block 14 and the slider 13 are jointly slidably clamped inside the sliding opening 12. A through hole 15 is formed through the outer surface of the slider 13, and a connecting water pipe 16 is movably penetrated through the inside of a plurality of through holes 15. The convex block 14 ensures that the slider 13 can slide inside the sliding opening 12 and will not fall off from the inside.

[0036] The telescopic mechanism includes a second telescopic cylinder 38. The two telescopic ends of the second telescopic cylinder 38 are respectively fixedly connected to the rear end of the connecting plate 1. An installation plate 39 is fixedly installed on the outer surface of the second telescopic cylinder 38. The second telescopic cylinder 38 is selected as an air cylinder, and the two connecting plates 1 can be quickly controlled to approach or move away from each other.

[0037] The lifting mechanism includes a fixed steel 5 fixedly installed on the side edge of the bottom plate 2 and a first telescopic cylinder 6 fixedly installed inside the fixed steel 5. The lower telescopic end of the first telescopic cylinder 6 is fixedly installed on the upper end surface of the pressing plate 3. The first telescopic cylinder 6 is selected as an air cylinder, and the pressing plate 3 can be quickly pressed down.

[0038] A plurality of equally spaced pressing teeth 4 protrude from the lower end surface of the pressing plate 3, and a plurality of equally spaced anti-slip teeth 17 protrude from the upper end surface of the limiting block 8. After the pressing plate 3 moves down, the pressing teeth 4 are engaged with the anti-slip teeth 17 to prevent the pressing plate 3 from being not firm enough after being pressed down and the phenomenon of relative translation of the limiting block 8.

[0039] The suction mechanism includes a mounting chassis 18 fixedly installed at the front end of the mounting plate 39, and a suction box 24 movably installed at the front end of the mounting chassis 18 through an adjustment mechanism. A plurality of branch pipes 28 are communicated with the lower end surface of the suction box 24. The lower ends of the plurality of branch pipes 28 are jointly communicated with a main pipe 29. A communication channel 30 is communicated with the outer surface of the main pipe 29. The rear end of the communication channel 30 is connected to a fixed shell 31. A motor 35 is fixedly installed on the inner wall of the fixed shell 31 through a fixing block 37. A fan blade 36 is fixedly installed at the output shaft end of the motor 35. An insertion port 34 is opened on the rear end surface of the suction box 24. An insertion frame 32 is slidably inserted into the inner side of the insertion port 34. A filter screen 33 is fixedly installed on the surface of the insertion frame 32. The insertion frame 32 can be pulled out to clean the inner filter screen 33.

[0040] The adjustment mechanism includes a vertical slide rail 19 fixedly installed at the front end of the mounting chassis 18, and a lifting block 20 slidably installed along the vertical direction inside the vertical slide rail 19. A plurality of first limiting holes 21 arranged at equal intervals are penetrated through the front end surface of the lifting block 20. A plurality of second limiting holes 22 arranged at equal intervals are penetrated through the front end surface of the vertical slide rail 19. A limiting bolt 23 penetrates through the inner sides of one of the first limiting holes 21 and the second limiting hole 22. A steering mechanism is arranged between the lifting block 20 and the lower end surface of the suction box 24. The steering mechanism includes connecting shafts 26 fixedly connected to the outer surfaces on both sides of the lifting block 20, and a concave seat 25 fixedly connected to the lower end surface of the suction box 24. The concave seat 25 sleeves on both sides of the lifting block 20, and the connecting shafts 26 slidably penetrate through the inner sides of the concave seat 25. Threaded locking nuts 27 are sleeved at both ends of the connecting shafts 26.

[0041] During work, the user is installed on the workbench through the mounting plate 39. The lower mold is located between the two limit blocks 8 on both sides. By controlling the contraction of the second telescopic cylinder 38, the two connecting plates 1 on both sides approach each other. For the two sides of the irregular lower mold, the limit blocks 8 can slide along the inner side of the chute 7 to ensure that the ends are attached to the sides of the lower mold. During positioning, the first telescopic cylinder 6 is controlled to extend, causing the pressure plate 3 to move downward. With the cooperation of the pressing teeth 4 and the anti-slip teeth 17, the loosening of the limit blocks 8 is prevented. Therefore, it can flexibly adapt to the side shape of the lower mold for clamping and positioning, which is relatively flexible. During the injection molding process of the lower mold, cold water is injected into the inner side of the connecting water pipe 16, and the water flowing in the connecting water pipe 16 absorbs and takes away the heat in the limit blocks 8, thus assisting in the heat dissipation of the lower mold. When the limit blocks 8 slide horizontally, the sliders 13 slide horizontally along the inner side of the sliding ports 12, preventing the relative translation between the limit blocks 8 from being hindered due to the existence of the connecting water pipe 16, which has the effect of promoting the rapid cooling and forming of the products in the mold. By controlling the operation of the motor 35, the fan blades 36 rotate, sucking air into the upper end of the suction box 24. After passing through the branch pipes 28, it enters the main pipe 29, and then enters the fixed shell 31 through the connecting channels 30 and is discharged from the rear, playing the role of suction. By unscrewing the limit bolt 23, the lifting block 20 can slide up and down along the inner side of the vertical sliding rail 19. After screwing the limit bolt 23 again, the height of the suction box 24 can be adjusted to flexibly adapt to molds of different heights. After loosening the locking nut 27, the concave seat 25 can be rotated around the connecting shaft 26. After screwing the locking nut 27 again to fix the concave seat 25, the purpose of adjusting the suction air angle is achieved, making the use more flexible, ensuring the air flow around the lower mold, and further achieving the heat dissipation effect. During the suction process, the dust on the surface of the lower mold can be sucked into the suction box 24 and blocked by the filter net 33 on the inner side. By moving backward, the insertion frame 32 can be pulled out to facilitate the later cleaning and maintenance of the filter net 33, ensuring the smooth air flow during later use. Therefore, it also has the function of dust removal, and the functions are relatively diverse.

[0042] The present invention can stably clamp the lower mold with irregular shapes on both sides, and the contact position with the lower mold can absorb heat well, preventing it from affecting the heat dissipation of the lower mold and further affecting the cooling and forming efficiency of the products. It has a heat dissipation effect, and can clean the dust on the surface of the lower mold while dissipating heat, with diverse functions.

[0043] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An injection mold positioning mechanism, comprising a connecting plate (1), characterized in that: The number of the connecting plates (1) is set to two and they are symmetrically arranged. The rear ends of the two connecting plates (1) are controlled to approach or move away from each other by a telescopic mechanism. The front end of the connecting plate (1) is fixedly connected with a bottom plate (2). A plurality of limiting blocks (8) are slidably mounted on the upper end surface of the bottom plate (2) along both side directions. An elastic mechanism is arranged between one end of the limiting block (8) and the edge of the bottom plate (2). A pressing plate (3) is mounted above the bottom plate (2) by a lifting mechanism. The lifting mechanism controls the pressing plate (3) to move downward and press on the surface of the limiting block (8) to stabilize the limiting block (8). A suction mechanism is arranged in front of the telescopic mechanism; A plurality of equally spaced pressing teeth (4) are convexly provided on the lower end surface of the pressing plate (3). A plurality of equally spaced anti-slip teeth (17) are convexly provided on the upper end surface of the limiting block (8). After the pressing plate (3) moves downward, the pressing teeth (4) are engaged with the anti-slip teeth (17); The suction mechanism includes a mounting base frame (18) fixedly mounted at the front end of a mounting plate (39), and a suction box (24) movably mounted at the front end of the mounting base frame (18) through an adjusting mechanism. A plurality of branch pipes (28) are communicated with the lower end surface of the suction box (24). The lower ends of the plurality of branch pipes (28) are commonly communicated with a main pipe (29). A communication channel (30) is communicated with the outer surface of the main pipe (29). The rear end of the communication channel (30) is connected with a fixed shell (31). A motor (35) is fixedly mounted on the inner wall of the fixed shell (31) through a fixing block (37). A fan blade (36) is fixedly mounted at the output shaft end of the motor (35). An insertion opening (34) is formed in the rear end surface of the suction box (24). An insertion frame (32) is slidably inserted into the inner side of the insertion opening (34). A filter screen (33) is fixedly mounted on the surface of the insertion frame (32); The adjusting mechanism includes a vertical sliding rail (19) fixedly mounted at the front end of the mounting base frame (18), and a lifting block (20) slidably mounted along the vertical direction inside the vertical sliding rail (19). A plurality of equally spaced first limiting holes (21) are formed through the front end surface of the lifting block (20). A plurality of equally spaced second limiting holes (22) are formed through the front end surface of the vertical sliding rail (19). A limiting bolt (23) penetrates through the inner sides of one of the first limiting holes (21) and the second limiting holes (22). A steering mechanism is arranged between the lifting block (20) and the lower end surface of the suction box (24); The steering mechanism includes connecting shafts (26) fixedly connected to the outer surfaces on both sides of the lifting block (20), and a concave seat (25) fixedly connected to the lower end surface of the suction box (24). The concave seat (25) sleeves on both sides of the lifting block (20), and the connecting shafts (26) slidably penetrate through the inner sides of the concave seat (25). Locking nuts (27) which are in threaded fit with each other are sleeved at both ends of the connecting shafts (26).

2. The positioning mechanism of an injection mold according to claim 1, characterized in that: A sliding groove (7) is formed in the upper end surface of the bottom plate (2). The limiting block (8) is slidably clamped into the inner side of the sliding groove (7). The limiting blocks (8) are arranged at equal intervals in the front-back direction.

3. The positioning mechanism of an injection mold according to claim 1, characterized in that: The elastic mechanism includes a guide rod (9) fixedly connected to one end of a limit block (8), and a compression spring (10) sleeved on the outer surface of the guide rod (9). One end of the guide rod (9) slidably penetrates through the side wall of the bottom plate (2) and is fixedly connected to a limit head (11).

4. The positioning mechanism of an injection mold according to claim 1, characterized in that: A sliding opening (12) is formed through the outer surface of the limit block (8). A slider (13) is inserted into the inner side of the sliding opening (12). A convex block (14) protrudes from the lower end of the slider (13). The convex block (14) and the slider (13) are jointly and slidably clamped inside the sliding opening (12). A through hole (15) is formed through the outer surface of the slider (13). A connecting water pipe (16) movably penetrates through the inside of a plurality of the through holes (15) together.

5. The positioning mechanism of an injection mold according to claim 1, characterized in that: The telescopic mechanism includes a second telescopic cylinder (38). The two telescopic ends of the second telescopic cylinder (38) are respectively fixedly connected to the rear end of a connecting plate (1). A mounting plate (39) is fixedly installed on the outer surface of the second telescopic cylinder (38).

6. The positioning mechanism of an injection mold according to claim 1, characterized in that: The lifting mechanism includes a fixed steel (5) fixedly installed on the side edge of the bottom plate (2), and a first telescopic cylinder (6) fixedly installed inside the fixed steel (5). The lower telescopic end of the first telescopic cylinder (6) is fixedly installed on the upper end surface of a pressing plate (3).

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