Gear pump housing production mold

Abstract

The application discloses a gear pump shell production mold, and belongs to the technical field of gear pump shells. Mainly includes: lower mold, the upper end face of the lower mold is provided with a cavity; upper mold, the upper mold is arranged above the lower mold, the lower surface of the upper mold is provided with a cover, the cover and the cavity are matched with each other and form a complete casting cavity; slot, the slot is arranged on the two side surfaces of the lower mold; separation mechanism, the separation mechanism is arranged at the slot, and the separation mechanism has: a bottom shaft, the two sides of the bottom shaft are hingedly connected with connecting pieces; a shaft sleeve, the upper end of the bottom shaft is sleeved with the shaft sleeve, the upper end of the shaft sleeve is provided with a top plate, and the two sides of the shaft sleeve are provided with movable pieces; the movable pieces are connected with the connecting pieces, and the shaft sleeve and the top plate can be driven upward through the movable pieces by pressing the connecting pieces. The gear pump shell production mold reaches the following effects: when the mold is opened, manual borrowing of external tools is not needed, the disassembly time is accelerated, and manpower and material resources are saved.

Description

Technical Field

[0001] This application relates to the field of gear pump housing technology, specifically a mold for producing gear pump housings. Background Technology

[0002] The gear pump housing is the core component of a gear pump, and its quality directly affects the pump's sealing performance, durability, and operating efficiency. During the production of gear pump housings, to ensure product precision, sealing performance, and durability, casting molding is typically used.

[0003] However, in the production process of gear pump housings, the molds used are usually composed of two sets of molds joined together. After the casting is completed, it is usually necessary to manually use external tools to separate the two molds. This process is slow and cumbersome, which not only consumes manpower and resources but also reduces the production efficiency of gear pump housings. Furthermore, improper operation can also damage the molds. Therefore, it is necessary to provide a mold for the production of gear pump housings to solve the above problems.

[0004] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Summary of the Invention

[0005] Based on the aforementioned problems in the existing technology, the problem to be solved by this application is to provide a mold for the production of gear pump housing, which achieves the goal of opening the mold without the need for manual external tools, speeding up the disassembly time, saving manpower and resources, and avoiding damage to the mold due to improper operation.

[0006] The technical solution adopted by this application to solve its technical problem is: a mold for producing a gear pump housing, comprising: The lower mold has a cavity on its upper surface; An upper mold is disposed above the lower mold. A mold cover is provided on the lower surface of the upper mold. The mold cover and the mold cavity cooperate with each other to form a complete casting cavity. Grooving is provided on both sides of the lower mold during shrinkage; A separation mechanism, disposed at the slot, has the following features: The bottom shaft has connecting plates hinged to both sides; A bushing is fitted onto the upper end of the bottom shaft. A top plate is installed on the upper end of the bushing, and movable pieces are provided on both sides of the bushing. The movable piece and the connecting piece are connected. Pressing the connecting piece can move the bushing and the top plate upward through the movable piece.

[0007] Furthermore, the connecting piece is configured as a right angle, with its right angle end hinged to the bottom shaft, and a pedal is fixedly installed at one of the outer ends of the connecting piece.

[0008] Furthermore, a sliding groove is provided through the upper end of the bushing, and a bolt fastener is fixedly installed between one end of the movable piece. The bolt fastener passes through the sliding groove and can slide within the sliding groove.

[0009] Furthermore, a connecting hole is provided at the end of the movable piece away from the bolt fastener, and a rotating shaft is fixedly installed at one end of the connecting piece, the rotating shaft being rotatably connected to the connecting hole.

[0010] Furthermore, a pressure rod is fixedly installed above one end of the movable piece having the connecting hole, and the pressure rod rotates with the movable piece.

[0011] Furthermore, mating holes are provided at the four corners of the upper end face of the lower mold, and mating rods are fixedly installed at the four corners of the lower end face of the upper mold. The mating rods and the mating holes correspond to each other and are mated.

[0012] Furthermore, a flow channel is provided between the mold caps, the flow channel is connected to the mold caps, and an outlet is provided on the flow channel. A gate is provided on one side of the upper mold, and the gate is connected to the outlet.

[0013] The beneficial effects of this application are: the mold for producing gear pump housing provided by this application opens the mold through a separation mechanism. Therefore, when the mold is opened after casting is completed, there is no need for manual use of external tools, which speeds up the disassembly time, saves manpower and resources, improves the production efficiency of gear pump housing, and avoids damage to the mold due to improper operation.

[0014] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings: Figure 1 This is an overall schematic diagram of a mold for producing a gear pump housing according to this application; Figure 2 for Figure 1 Individual schematic diagrams of the upper and middle molds from different perspectives; Figure 3 for Figure 1 Individual schematic diagrams of the middle and lower molds from different perspectives; Figure 4 for Figure 3 Partial exploded view of the separation mechanism; Figure 5 for Figure 3 A separate schematic diagram of the separation mechanism; Figure 6 for Figure 5 Schematic diagram of the different states of the overall structure; The following are the labeling elements in the figure: 1. Base; 11. Lower mold; 12. Cavity; 13. Mating hole; 14. Groove; 15. Fixing hole; 2. Top cover; 21. Upper mold; 211. Mold cover; 212. Runner; 213. Outlet; 22. Gate; 23. Mating rod; 3. Separation mechanism; 31. Fixing plate; 311. Mounting hole; 312. Fixing bolt; 32. Bottom shaft; 33. Connecting piece; 331. Pedal; 332. Rotating shaft; 34. Bushing; 341. Slide groove; 342. Top plate; 35. Movable piece; 351. Bolt fastener; 352. Connecting hole; 36. Pressure rod. Detailed Implementation

[0016] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0017] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0018] like Figures 1-2 As shown, this application provides a mold for producing a gear pump housing, including a base 1, a lower mold 11 fixedly installed on the upper end of the base 1, the base 1 supports and fixes the lower mold 11, and the upper end surface of the lower mold 11 is provided with multiple cavities 12, the cavities 12 being the shape of a gear pump housing; Meanwhile, a top cover 2 is provided above the lower mold 11, and an upper mold 21 is fixedly installed at the bottom of the top cover 2. The upper mold 21 and the lower mold 11 correspond to each other. Multiple sets of mold covers 211 are opened on the lower surface of the upper mold 21. The mold covers 211 cooperate with the cavity 12. Therefore, when the upper mold 21 and the lower mold 11 are in contact, the mold covers 211 cooperate with the cavity 12 to form a complete casting cavity. To facilitate casting into the casting cavity, a runner 212 is provided between multiple sets of mold caps 211. The runner 212 connects the multiple sets of mold caps 211. An outlet 213 is provided at the intersection of the runners 212 towards the top cover 2. At the same time, a gate 22 is provided on one side of the upper mold 21. The gate 22 is connected to the outlet 213. A funnel (not shown) is installed at the port of the gate 22. Therefore, during casting, the material is inverted into the funnel, and the material will enter through the gate 22, from the outlet 213, and along the runner 212 into the mold cavity 12 to complete the casting operation.

[0019] In this application, the upper mold 21, the lower mold 11, and the gate 22 are all made of metal.

[0020] To enable the upper mold 21 and the lower mold 11 to quickly mate, mating holes 13 are provided at the four corners of the upper end face of the lower mold 11, and mating rods 23 are fixedly installed at the four corners of the lower end face of the upper mold 21. The mating rods 23 and the mating holes 13 correspond to each other and mate. Therefore, when installing the upper mold 21, the mating rods 23 are inserted into the mating holes 13 to complete the quick assembly.

[0021] like Figures 3-5 As shown, the two sides of the lower mold 11 are flush with the two sides of the base 1, while the other two sides of the lower mold 11 are retracted into the base 1, leaving a platform in the base 1. Slots 14 are provided on both sides of the retracted lower mold 11, and a separation mechanism 3 is provided at both slots 14. The separation mechanism 3 is fixed to the platform on the upper end face of the base 1. The separation mechanism 3 is used to separate the upper mold 21 and the lower mold 11. The separation mechanism 3 has a fixing plate 31. In order to fix the fixing plate 31, a fixing hole 15 is provided on the upper surface of the platform of the base 1. The fixing plate 31 has a mounting hole 311. The mounting hole 311 and the fixing hole 15 correspond to each other, and a fixing bolt 312 is threaded into the fixing hole 15. Therefore, when installing the separation mechanism 3, after aligning the mounting hole 311 on the fixing plate 31 with the fixing hole 15, the fixing bolt 312 is passed through the mounting hole 311 and tightened into the fixing hole 15, thereby fixing the fixing plate 31.

[0022] A bottom shaft 32 is fixedly installed on the upper end of the fixed plate 31. Connecting pieces 33 are hinged to both sides of the bottom end of the bottom shaft 32. It can be understood that the connecting piece 33 is set as a right angle, and its right angle end is hinged to the bottom shaft 32. A pedal 331 is fixedly installed at one of the outer ends. The connecting piece 33 can be pressed and rotated by the pedal 331. Meanwhile, a bushing 34 is fitted on the upper end of the bottom shaft 32. The bushing 34 can slide on the bottom shaft 32. A sliding groove 341 is opened through the upper end of the bushing 34. Movable pieces 35 are provided on both sides of the bushing 34. A bolt fastener 351 is fixedly installed between one end of the movable pieces 35. The bolt fastener 351 passes through the sliding groove 341 and can slide in the sliding groove 341. Therefore, the movable pieces 35 can rotate on the outside of the bushing 34 along with the bolt fastener 351. Furthermore, a connecting hole 352 is provided at the end of the movable piece 35 away from the bolt fastener 351, and a rotating shaft 332 is fixedly installed at the end of the connecting piece 33 without the pedal 331. The rotating shaft 332 is rotatably connected in the connecting hole 352, and a pressure rod 36 is fixedly installed above the end of the movable piece 35 with the connecting hole 352. The pressure rod 36 will rotate with the movable piece 35. A top plate 342 is fixedly installed at the upper end of the bushing 34. The top plate 342 is used to push the upper mold 21. In this application, specifically as follows: Figure 5 As shown, when the separation mechanism 3 is in its initial state, the upper surface of the top plate 342 is flush with the upper surface of the lower mold 11, the movable piece 35 is tilted, and the two ends of the connecting piece 33 are facing upwards.

[0023] In summary: After casting is completed, the workers press down the pedal 331 by hand or foot, causing it to rotate the connecting piece 33 until the end of the connecting piece 33 without the pedal 331 is perpendicular to the fixed plate 31, that is, flush with the bottom shaft 32. During the rotation of the connecting piece 33, the connecting piece 33 pulls the movable piece 35 downward through the rotating shaft 332. At the same time, the movable piece 35 moves upward in the slide groove 341 through the bolt fastener 351 until it hits the upper end of the slide groove 341. At this time, the pressure rod 36 also rotates. When the end of the connecting piece 33 without the pedal 331 rotates to be flush with the bottom shaft 32, it will also pull the movable piece 35 to be flush with the bottom shaft 32. At the same time, it will slide the bushing 34 upward, causing the top plate 342 to rise (specifically as follows). Figure 6 (as shown), thereby separating the upper mold 21 and the lower mold 11; When the separation mechanism 3 needs to be restored, the operator pushes or steps on the pressure rod 36 outward, causing the pressure rod 36 to drive the movable piece 35 to rotate outward for reset. At the same time, the connecting piece 33 and the bushing 34 will also be reset, making it convenient for continued use next time. Therefore, when the mold is opened after casting, there is no need to use external tools manually, which speeds up the disassembly time, saves manpower and resources, improves the production efficiency of the gear pump housing, and avoids damage to the mold due to improper operation.

[0024] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A mold for producing a gear pump housing, characterized in that: include: The lower mold (11) has a cavity (12) on its upper end face. An upper mold (21) is disposed above the lower mold (11). A mold cover (211) is provided on the lower surface of the upper mold (21). The mold cover (211) and the mold cavity (12) cooperate with each other to form a complete casting cavity. A slot (14) is formed on both sides of the lower mold (11) when it contracts; A separation mechanism (3) is disposed at the slot (14), and the separation mechanism (3) has: The bottom shaft (32) has connecting pieces (33) hinged to both sides. A bushing (34) is fitted onto the upper end of the bottom shaft (32). A top plate (342) is installed on the upper end of the bushing (34). Movable pieces (35) are provided on both sides of the bushing (34). The movable piece (35) and the connecting piece (33) are connected. Pressing the connecting piece (33) can drive the bushing (34) and the top plate (342) upward through the movable piece (35).

2. The mold for producing a gear pump housing according to claim 1, characterized in that: The connecting piece (33) is configured as a right angle, with its right angle end hinged to the bottom shaft (32), and a pedal (331) is fixedly installed between one of the outer ends of the connecting piece (33).

3. The mold for producing a gear pump housing according to claim 1, characterized in that: A groove (341) is provided through the upper end of the bushing (34), and a bolt fastener (351) is fixedly installed between one end of the movable piece (35). The bolt fastener (351) passes through the groove (341) and can slide within the groove (341).

4. The mold for producing a gear pump housing according to claim 3, characterized in that: The movable piece (35) has a connecting hole (352) at one end away from the bolt fastener (351), and a rotating shaft (332) is fixedly installed at one end of the connecting piece (33), and the rotating shaft (332) is rotatably connected in the connecting hole (352).

5. The mold for producing a gear pump housing according to claim 4, characterized in that: A pressure rod (36) is fixedly installed above one end of the movable piece (35) having the connecting hole (352), and the pressure rod (36) rotates with the movable piece (35).

6. The mold for producing a gear pump housing according to claim 1, characterized in that: The lower mold (11) has four corners of the upper end face with mating holes (13), and the upper mold (21) has four corners of the lower end face with mating rods (23). The mating rods (23) and the mating holes (13) correspond to each other and are mated.

7. The mold for producing a gear pump housing according to claim 1, characterized in that: A flow channel (212) is provided between the mold caps (211), the flow channel (212) is connected to the mold caps (211), and an outlet (213) is provided on the flow channel (212). A gate (22) is provided on one side of the upper mold (21), and the gate (22) is connected to the outlet (213).

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