An electric water pump support is cast in a mold

Abstract

This invention relates to a casting mold for an electric water pump bracket, comprising a fixed mold and a movable mold. The movable mold has a core-pulling block and a driving unit. The core-pulling block is used to form a connecting seat and is slidably connected to the movable mold. The driving unit controls the sliding of the core-pulling block. A second core-pulling block is slidably connected to the first core-pulling block and is used to form a water outlet channel. The second core-pulling block has a second driving unit that controls its movement. This invention ensures the smooth forming of the water outlet channel and connecting seat on the bracket body.

Description

Technical Field

[0001] This invention relates to the field of molds, and in particular to a casting mold for an electric water pump bracket. Background Technology

[0002] An electric water pump bracket, such as Figure 17 As shown, it is formed by injection molding and includes a bracket body 9. The bracket body 9 has a through hole 91 and a connecting seat 92. The connecting seat 92 has a water outlet channel 93. One opening of the water outlet channel 93 is opened on the connecting seat 92. Two assembly slots 94 are symmetrically arranged on the inner wall of the opening.

[0003] During the mold design process, it was discovered that the movement paths of the core-pulling block used to form the connecting seat 92 and the core-pulling block used to form the water outlet channel 93 interfered. A reasonable core-pulling structure needs to be designed to solve the problem of interference between the movement paths of the two core-pulling blocks. Summary of the Invention

[0004] This application provides a casting mold for an electric water pump bracket, which can smoothly ensure the formation of the water outlet channel and the connecting seat.

[0005] The electric water pump bracket casting mold provided in this application adopts the following technical solution:

[0006] A casting mold for an electric water pump bracket includes a fixed template and a movable template. The movable template is provided with a core-pulling block and a driving part. The core-pulling block is used to form a connecting seat and is slidably connected to the movable template. The driving part is used to control the sliding of the core-pulling block. A second core-pulling block is slidably connected to the first core-pulling block. The second core-pulling block is used to form a water outlet channel and is provided with a second driving part, which is used to control the movement of the second core-pulling block.

[0007] By adopting the above technical solution, after the product is formed, the second drive unit drives the second core-pulling block to slide, causing the second core-pulling block to slide into the first core-pulling block, and releasing the undercut structure between the second core-pulling block and the bracket body. Then, the first drive unit drives the first core-pulling block to move, releasing the undercut structure between the first drive unit and the connecting seat.

[0008] Preferably, the core-pulling block 2 is provided with a water inlet channel 1, a water inlet pipe 1, and a water outlet channel 1. The water inlet pipe 1 extends into the water outlet channel 1, one end of the water inlet pipe 1 is connected to the water inlet channel 1, and the other end of the water inlet pipe 1 is located in the water outlet channel 1.

[0009] By adopting the above technical solution, during the casting of the support body, external cooling water is forced into the inlet channel one, and then the cooling water enters the inlet pipe one. The inlet pipe one transports the cooling water to the outlet channel one, and then the cooling water flows out through the outlet channel one. The extension of the inlet pipe one to the outlet channel one allows the cooling water to effectively cool the core-pulling block two when it flows back.

[0010] Preferably, the core-pulling block 2 has two sliding grooves 1, and a core-pulling block 3 is slidably connected in each of the two sliding grooves 1. The core-pulling block 3 is used to form the assembly groove. The core-pulling block 2 is provided with two sets of driving mechanisms. The driving mechanisms are used to control the movement of the core-pulling block 3 into or out of the sliding groove 1.

[0011] By adopting the above technical solution, during product injection molding, two sets of drive mechanisms drive two core-pulling blocks (3) to extend out of the slide groove (1), thereby completing the forming of the assembly groove during the casting of the bracket body. After the bracket body is cast, the two sets of drive mechanisms drive the two core-pulling blocks (3) to move into the slide groove (1), eliminating the undercut structure between the two core-pulling blocks (3) and the two assembly grooves, allowing the core-pulling block (2) to smoothly move out of the water outlet channel.

[0012] Preferably, the core-pulling block 2 is provided with a second sliding groove and a third sliding groove. The second sliding groove is located between the first sliding groove and the third sliding groove, and the third sliding groove is connected to the first water outlet. The driving mechanism includes a connecting rod slidably connected to the core-pulling block 2, a slider 1 slidably connected to the second sliding groove, a slider 2 slidably connected to the third sliding groove, and a spring disposed in the second sliding groove. The connecting rod is respectively connected to the third core-pulling block, the first slider, and the second slider. The spring is located on the side of the first slider away from the second slider. The spring is sleeved on the connecting rod, and the elastic force of the spring acts on the first slider. The spring always drives the first slider to slide toward the third sliding groove.

[0013] By adopting the above technical solution, cooling is provided for the core-pulling block three to extend out of the slide groove one and for the bracket body during the molding process. Before the bracket body is injection molded, an external cooling water machine presses cooling water into the inlet channel one, the inlet pipe one, and the outlet channel one. The cooling water entering the outlet channel one presses against the slider two, driving the slider two to slide away from the inlet pipe one. When the slider two moves away from the inlet pipe one, it drives the connecting rod, the slider one, and the core-pulling block three to move together in the same direction along their respective slide grooves, causing the core-pulling block three to extend out of the slide groove one. When the slider one moves away from the inlet pipe one, it compresses the spring, causing the spring to be further compressed. Finally, the water flow presses the slider two against the groove wall of the slide groove three away from the inlet pipe one, so that the core-pulling block three is in the position of the molding assembly groove. After the bracket body is finished, the external cooling water machine stops pressing cooling water into the inlet channel one. Without the water flow pushing the second slider, the spring will rebound and drive the first slider, connecting rod, second slider, and third core-pulling block to move closer to the first water inlet pipe, causing the core-pulling block to move into the first slide groove, thereby releasing the undercut structure between the core-pulling block and the assembly groove.

[0014] Preferably, the second core-pulling block has an installation groove, and an installation block is detachably connected to the installation groove. The installation block fills part of the installation groove. The cavity in the installation groove that is not filled by the installation block is a sliding groove. Both the sliding groove and the sliding groove are provided on the installation block.

[0015] By adopting the above technical solution, the installation of components such as the core-pulling block is facilitated.

[0016] Preferably, the mounting block includes a block body one and a block body two. The block body one is detachably connected to the mounting groove one, and the block body one is provided with the mounting groove two. The block body two is detachably connected to the mounting groove two. The sliding groove one is formed on the block body two, and the sliding groove two is formed on the bottom wall of the mounting groove two. One end of the spring abuts against the block body two, and the other end of the spring abuts against the slider one.

[0017] By adopting the above technical solution, a spring and a slider are installed.

[0018] Preferably, the first core-pulling block is provided with a sleeve, and the second core-pulling block is slidably connected inside the sleeve. The sleeve is located on the side of the mounting block away from the first water outlet and is always in contact with the mounting block. The sleeve always restricts the mounting block from detaching from the first mounting groove.

[0019] By adopting the above technical solution, the sleeve can prevent the mounting block from dislodging from the mounting groove and play a limiting role in the mounting block. At the same time, the sleeve has excellent wear resistance, which can prevent the second core-pulling block from wearing down the channel on the first core-pulling block during the reciprocating motion of the second core-pulling block, and prevent the casting liquid from flowing between the first core-pulling block and the second core-pulling block.

[0020] Preferably, a core-pulling block four is slidably connected to the fixed template, the core-pulling block four is used to form a through hole, and a driving part three is provided on the fixed template, the driving part three is used to control the movement of the core-pulling block four.

[0021] By adopting the above technical solution, before the mold is opened, the drive unit three drives the core-pulling block four to move away from the through hole, thereby releasing the undercut structure between the core-pulling block four and the through hole, so that the mold can be demolded smoothly.

[0022] The main technical effects of this invention are reflected in the following aspects:

[0023] 1. In this invention, the second core-pulling block is set on the first core-pulling block, and a two-stage core-pulling structure is designed to prevent motion interference between the first core-pulling block and the second core-pulling block.

[0024] 2. The cooling water of this invention can not only provide cooling for the support body during the molding process, but also drive the core-pulling block three to extend out of the slide groove one;

[0025] 3. In this invention, the mounting block is configured as block body one and block body two, which facilitates the installation of components such as springs. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the mold structure.

[0027] Figure 2 This is a structural diagram of the template, core-pulling block four, and drive unit three.

[0028] Figure 3 yes Figure 2 A schematic diagram of the structure after partial sectioning of the central template.

[0029] Figure 4 This is a structural diagram of a moving template.

[0030] Figure 5 This is a structural diagram of core-pulling block one, core-pulling block two, drive unit, and bracket body.

[0031] Figure 6 This is a structural diagram of core-pulling block one, core-pulling block two, and the drive unit.

[0032] Figure 7 This is a schematic diagram of the core-pulling block 2 and the partially cut section of the sleeve.

[0033] Figure 8 This is a schematic diagram of the core-pulling block two.

[0034] Figure 9 This is a schematic diagram of the structure after partial cross-section of the core-pulling block 2.

[0035] Figure 10 yes Figure 9 A magnified view of a portion of point A in the middle.

[0036] Figure 11 This is a structural diagram of the core-pulling block 2 and the support body.

[0037] Figure 12 This is a schematic diagram of the structure of the core-pulling block 2 and the support body after partial cross-section.

[0038] Figure 13 yes Figure 12 A magnified view of a section at point B in the middle.

[0039] Figure 14 yes Figure 13 A schematic diagram of the core-pulling block three and the drive mechanism when the cooling water presses the third slider against the first block.

[0040] Figure 15 yes Figure 14 A cross-sectional view of the middle component along the CC line.

[0041] Figure 16yes Figure 15 A schematic diagram showing the structure when the cooling water does not press against the third slider and the spring presses the second slider against the bottom wall of the second slide groove.

[0042] Figure 17 This is a structural schematic diagram of the support body.

[0043] Reference numerals: 11. Fixed template; 12. Moving template; 13. Core-pulling block one; 14. Drive unit one; 15. Core-pulling block two; 16. Drive unit two; 21. Water inlet channel one; 22. Water inlet pipe one; 23. Water outlet channel one; 24. Slide groove one; 25. Core-pulling block three; 26. Slide groove two; 27. Slide groove three; 28. Mounting groove one; 3. Drive mechanism; 31. Connecting rod; 32. Slider one; 33. Slider two; 34. Spring; 4. Mounting block; 41. Block one; 411. Mounting groove two; 42. Block two; 5. Sleeve; 61. Core-pulling block four; 62. Drive unit three; 9. Support body; 91. Through hole; 92. Connecting seat; 93. Water outlet channel; 94. Assembly groove. Detailed Implementation

[0044] The present invention will be further described in detail below with reference to the accompanying drawings, so that the technical solution of this application can be more easily understood and mastered.

[0045] Reference Figures 1-3 This embodiment of an electric water pump bracket casting mold includes a fixed template 11 and a movable template 12. A core-pulling block 61 is slidably connected to the fixed template 11 along the mold opening direction perpendicular to the mold. The core-pulling block 61 is used to form a through hole 91. A drive unit 62 is provided on the fixed template 11 to control the movement of the core-pulling block 61. The drive unit 62 is a hydraulic cylinder, and the output shaft of the drive unit 62 is connected to the core-pulling block 61.

[0046] Reference Figures 4-7 The moving template 12 is equipped with a core-pulling block 13 and a drive unit 14. The core-pulling block 13 is used to form the connecting seat 92. The core-pulling block 13 is slidably connected to the moving template 12 along the mold opening direction perpendicular to the mold. The drive unit 14 is used to control the sliding of the core-pulling block 13. A sleeve 5 is installed on the core-pulling block 13, and a second core-pulling block 15 is slidably connected to the core-pulling block 13. The main body of the second core-pulling block 15 is slidably connected inside the sleeve 5. The second core-pulling block 15 is used to form the water outlet channel 93. A second drive unit 16 is installed on the second core-pulling block 15, and the drive unit 16 is used to control the movement of the second core-pulling block 15. Both the drive unit 14 and the drive unit 16 are hydraulic cylinders. The output shaft of the drive unit 14 is connected to the core-pulling block 13, and the output shaft of the drive unit 16 is connected to the core-pulling block 15.

[0047] Reference Figures 8-10The core-pulling block 215 is equipped with an inlet channel 21, an inlet pipe 22, and an outlet channel 23. The inlet pipe 22 extends into the outlet channel 23, with one end connected to the inlet channel 21 and the other end located in the outlet channel 23. During the casting of the support body 9, external cooling water passes through the inlet channel 21, then enters the inlet pipe 22, which transports the cooling water to the outlet channel 23, and then the cooling water flows out through the outlet channel 23.

[0048] Reference Figure 7 , Figures 11-13 Two mounting slots 28 are symmetrically formed on the core-pulling block 15, and mounting blocks 4 are detachably connected to the mounting slots 28. The mounting block 4 includes a block 41 and a block 42. The block 41 is detachably connected to the mounting slot 28 by bolts. The sleeve 5 is located on the side of the block 41 away from the outlet channel 23 and is always in contact with the block 41. The sleeve 5 always prevents the block 41 from detaching from the mounting slot 28.

[0049] Reference Figures 13-16 A mounting groove 411 is provided on block 41, and block 42 is threaded into the mounting groove 411. A sliding groove 24 is provided on block 41, and a sliding groove 26 is provided on the side wall of the mounting groove near the water inlet pipe 22. Block 41 fills part of the mounting groove 28, and the cavity in the mounting groove 28 that is not filled by block 41 is the sliding groove 27.

[0050] Reference Figures 13-16 Both slides 1 and 24 are slidably connected to core-pulling blocks 3 and 25. Core-pulling blocks 3 and 25 are used to form assembly slots 94. Core-pulling blocks 2 and 15 are provided with two sets of drive mechanisms 3. Drive mechanisms 3 are used to control the movement of core-pulling blocks 3 and 25 into slides 1 and 24 or to move out of slides 1 and 24.

[0051] Reference Figures 13-16 The drive mechanism 3 includes a connecting rod 31 slidably connected to the core-pulling block 15, a slider 32 slidably connected to the slide groove 26, a slider 33 slidably connected to the slide groove 27, and a spring 34 installed in the slide groove 26. The slider 32 is integrally formed on the connecting rod 31. The top end of the connecting rod 31 is inserted into the core-pulling block 3, and the bottom end of the connecting rod 31 is inserted into the slider 33.

[0052] Reference Figures 13-16Spring 34 is located on the side of slider 1 32 away from slider 2 33. Spring 34 is sleeved on connecting rod 31. One end of spring 34 abuts against block 2 42, and the other end of spring 34 abuts against slider 1 32. The elastic force of spring 34 acts on slider 1 32, and spring 34 always drives slider 1 32 to slide towards slide groove 3 27. In the initial state, spring 34 presses slider 1 32 against the side wall of slide groove 2 26 near slide groove 3 27. At this time, core puller block 13 is located in slide groove 1 24, and the end of slider 3 near water inlet pipe 1 22 extends into water outlet channel 1 23.

[0053] Reference Figures 1-16 The casting process of the mold in this application is as follows:

[0054] First, the casting machine controls the mold to close. Then, the output shafts of the three hydraulic cylinders, namely drive unit 14, drive unit 2 16, and drive unit 3 62, extend to control the core pulling blocks 13, 25, 41 to move to the predetermined position, preparing for the forming of the bracket body 9.

[0055] After the aforementioned components are reset, the external cooling water machine presses cooling water into the inlet channel 21, inlet pipe 22, and outlet channel 23. The internal cooling water entering the outlet channel 23 will press against the slider 33, driving the slider 33 to slide away from the inlet pipe 22. When the slider 33 moves away from the inlet pipe 22, it will drive the connecting rod 31, slider 32, and core-pulling block 25 to move together in the same direction along their respective slides, causing the core-pulling block 25 to extend out of the slide 24. When the slider 32 moves away from the inlet pipe 22, it will squeeze the spring 34, causing the spring 34 to be further compressed. Finally, the water flow will press the slider 33 against the block 41, so that the core-pulling block 25 is in the position of the molding assembly groove 94.

[0056] Then, the casting machine injects the solution into the mold to complete the molding of the bracket body 9. During the molding process of the bracket body 9, the cooling water machine continuously injects cooling water into the core-pulling block 2 15, maintaining the position of the core-pulling block 3 25 while ensuring the cooling of the core-pulling block 2 15, thereby increasing the molding speed of the bracket body 9.

[0057] After the bracket body 9 is formed, the external cooling water machine stops injecting cooling water into the core-pulling block 2 15. Without the water flow pushing the slider 2 33, the spring 34 will rebound and drive the slider 1 32, connecting rod 31, slider 2 33, and core-pulling block 3 25 to move closer to the water inlet pipe 1 22, so that the core-pulling block moves into the slide groove 1 24, thereby releasing the undercut structure between the core-pulling block 3 25 and the assembly groove 94.

[0058] Then, the output shaft of drive unit 3 62 retracts, driving core-pulling block 4 61 to move and disengage from through hole 91, thereby releasing the undercut structure between core-pulling block 4 61 and through hole 91. Next, the mold opens, and then the output shaft of drive unit 2 16 retracts, causing core-pulling block 2 15 to slide into core-pulling block 1 13, releasing the undercut structure between core-pulling block 2 15 and bracket body 9. Then, drive unit 1 14 drives core-pulling block 1 13 to move and release the undercut structure between drive unit 1 14 and connecting seat 92. Then, the formed bracket body 9 can be removed from moving template 12. After bracket body 9 is removed, the mold closes and begins casting the next bracket body 9.

[0059] Of course, the above are just typical examples of this application. In addition, this application may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed in this application.

Claims

1. A casting mold for an electric water pump bracket, comprising a fixed mold plate (11) and a movable mold plate (12), characterized in that: The moving template (12) is provided with a core-pulling block one (13) and a driving part one (14). The core-pulling block one (13) is used to form the connecting seat (92). The core-pulling block one (13) is slidably connected to the moving template (12). The driving part one (14) is used to control the sliding of the core-pulling block one (13). A core-pulling block two (15) is slidably connected to the core-pulling block one (13). The core-pulling block two (15) is used to form the water outlet channel (93). The core-pulling block two (15) is provided with a driving part two (16). The core-pulling block two (15) is provided with a core-pulling block two (16). The system includes an inlet channel (21), an inlet pipe (22), and an outlet channel (23). The inlet pipe (22) extends into the outlet channel (23). One end of the inlet pipe (22) is connected to the inlet channel (21), and the other end of the inlet pipe (22) is located in the outlet channel (23). The core-pulling block 2 (15) has two sliding grooves (24), and a core-pulling block 3 (25) is slidably connected in each of the two sliding grooves (24). The core-pulling block 3 (25) is used to form the assembly groove (94). The core-pulling block 2 (15) is equipped with... Two sets of drive mechanisms (3) are provided, which are used to control the movement of the core-pulling block three (25) into the slide groove one (24) or out of the slide groove one (24); the core-pulling block two (15) is provided with slide groove two (26) and slide groove three (27), the slide groove two (26) is located between slide groove one (24) and slide groove three (27), and the slide groove three (27) is connected to the water outlet one (23); the drive mechanism (3) includes a connecting rod (31) slidably connected to the core-pulling block two (15) and a slider one slidably connected to the slide groove two (26). 32) A slider 2 (33) is slidably connected in the slide groove 3 (27), and a spring (34) is provided in the slide groove 2 (26). The connecting rod (31) is connected to the core-pulling block 3 (25), slider 1 (32) and slider 2 (33) respectively. The spring (34) is located on the side of slider 1 (32) away from slider 2 (33). The spring (34) is sleeved on the connecting rod (31). The elastic force of the spring (34) acts on slider 1 (32). The spring (34) always drives slider 1 (32) to slide toward the slide groove 3 (27).

2. The electric water pump bracket casting mold according to claim 1, characterized in that: The core-pulling block 2 (15) has an installation groove 1 (28), and an installation block (4) is detachably connected in the installation groove 1 (28). The installation block (4) fills part of the installation groove 1 (28). The cavity in the installation groove 1 (28) that is not filled by the installation block (4) is the sliding groove 3 (27). The sliding groove 1 (24) and the sliding groove 2 (26) are both provided on the installation block (4).

3. The electric water pump bracket casting mold according to claim 2, characterized in that: The mounting block (4) includes a block one (41) and a block two (42). The block one (41) is detachably connected to the mounting groove one (28). The block one (41) is provided with the mounting groove two (411). The block two (42) is detachably connected to the mounting groove two (411). The sliding groove one (24) is opened on the block two (42). The sliding groove two (26) is opened on the bottom wall of the mounting groove two (411). One end of the spring (34) abuts against the block two (42), and the other end of the spring (34) abuts against the slider one (32).

4. The electric water pump bracket casting mold according to claim 2, characterized in that: The first core-pulling block (13) is provided with a sleeve (5), and the second core-pulling block (15) is slidably connected inside the sleeve (5). The sleeve (5) is located on the side of the mounting block (4) away from the first water outlet (23) and is always in contact with the mounting block (4). The sleeve (5) always restricts the mounting block (4) from disengaging from the first mounting groove (28).

5. The electric water pump bracket casting mold according to claim 1, characterized in that: A core-pulling block four (61) is slidably connected to the fixed template (11). The core-pulling block four (61) is used to form a through hole (91). A driving part three (62) is provided on the fixed template (11). The driving part three (62) is used to control the movement of the core-pulling block four (61).

Images