Precision multi-cavity die for molded resistor packaging

Abstract

The utility model relates to the technical field of resistor processing, disclose precision multi -cavity mould for moulded resistor packaging, including bottom plate, the top fixedly connected with bottom connecting piece of bottom plate, the top left and right sides of bottom plate all are provided with injection mould mechanism, injection mould mechanism is used for opening and closing injection, moulds resistance, the top front and back sides of bottom plate all are provided with take electrode mechanism, take electrode mechanism is used for automatic electrode tube injection and moulds resistance production, injection mould mechanism includes two connecting bottom piece, the bottom of two connecting bottom piece is fixedly connected in the top left and right sides of bottom plate, the top of two connecting bottom piece all is fixedly connected with a plurality of support columns, the top of a plurality of support columns all is provided with same top support subassembly, in the utility model, the both sides of equipment all are provided with two resistor injection and moulding mechanism, need not manual operation pressure bonding device, has improved overall production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of resistor processing technology, and in particular to a precision multi-cavity mold for packaging molded resistors. Background Technology

[0002] Precision molds for molded resistor packaging are specialized molds used for packaging resistors. They are used to mold resistor blanks and consist of an upper mold, a lower mold, and an independent cavity. The shape and size of the cavity are precisely set according to the resistor's packaging specifications, which allows the packaging material to tightly wrap the resistor body during the molding process, forming a packaging structure that meets the requirements.

[0003] Resistor packaging molds play a crucial role in resistor manufacturing. They isolate the core components of the resistor from the external environment, preventing dust and moisture from affecting the resistor's performance. At the same time, they enhance the mechanical strength of the resistor, preventing damage from external forces during transportation, installation, and use. Through molding, the molds also ensure the dimensional accuracy and appearance consistency of the packaged resistor, providing a stable foundation for subsequent assembly and use.

[0004] However, the current resistor packaging molds on the market have shortcomings. The existing molds have a low degree of automation, and there are many steps in the production process that require manual intervention. The placement of the resistor blank and the removal of the product after packaging rely on manual operation, which increases labor costs. Human operation errors lead to unstable product quality, making it impossible to achieve continuous and high-speed production, which makes it difficult to improve the overall production efficiency and meet the needs of large-scale production. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a precision multi-cavity mold for molding resistor packaging, which aims to improve the problem that the existing technology requires many manual steps in the production process and makes it difficult to improve the overall production efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a precision multi-cavity mold for molding resistor encapsulation, comprising a base plate, a bottom connecting piece fixedly connected to the top of the base plate, a grouting mold mechanism provided on both the left and right sides of the top of the base plate, the grouting mold mechanism being used for opening and closing grouting and molding the resistor, and an electrode picking mechanism provided on both the front and rear sides of the top of the base plate, the electrode picking mechanism being used for automatically picking up the electrode tube for grouting and molding the resistor;

[0007] The grouting mold mechanism includes two connecting base plates. The bottoms of the two connecting base plates are respectively fixedly connected to the top left and right sides of the base plate. Multiple support columns are fixedly connected to the top of each of the two connecting base plates. The top of each of the multiple support columns is provided with the same top support assembly. The top of each of the two top support assemblies is provided with two hydraulic push blocks. Multiple hydraulic push rods are fixedly connected between adjacent hydraulic push blocks. Engaging molds are fixedly connected between adjacent hydraulic push rods. Grouting openings are provided between adjacent engaging molds.

[0008] As a further description of the above technical solution:

[0009] The electrode-retrieving mechanism includes two side connecting plates, the bottoms of which are fixedly connected to the front and rear sides of the top of the base plate, respectively. Side openings are provided at the four corners of the top of each of the two side connecting plates. Side connecting posts are fixedly connected at the four corners of the top of each of the two side connecting plates. The tops of multiple side connecting posts are fixedly connected to the same side connecting plate. Side hydraulic blocks are fixedly connected to the tops of each of the two side connecting plates. Front and rear hydraulic rods are fixedly connected between adjacent sides of the two side hydraulic blocks. Electrode locking keys are fixedly connected between adjacent sides of the two front and rear hydraulic rods. Electrode cells are slidably connected between adjacent sides of the two electrode locking keys.

[0010] As a further description of the above technical solution:

[0011] The top support assembly includes two top connecting pieces. The bottom of the two top connecting pieces is fixedly connected to the top of multiple support columns on the left and right sides, respectively. Connecting piece fixing bolts are provided at the four corners of the top of the two top connecting pieces.

[0012] As a further description of the above technical solution:

[0013] Bolt holes are provided at the four corners of the top of the base plate, and main fixing bolts are slidably connected inside the multiple bolt holes.

[0014] As a further description of the above technical solution:

[0015] The top front and rear sides of the bottom connecting piece are respectively fixedly connected to multiple central support rods, and the top of each of the multiple central support rods is fixedly connected to the same central support piece.

[0016] As a further description of the above technical solution:

[0017] The tops of the two central support plates are fixedly connected to fan housings, and the interiors of the two fan housings are equipped with cooling fans.

[0018] As a further description of the above technical solution:

[0019] Resistor placement boxes are provided on both the front and rear sides of the bottom of the base plate, and a placement box handle is fixedly connected to the opposite side of each of the two resistor placement boxes.

[0020] As a further description of the above technical solution:

[0021] Each of the two resistor placement boxes has a base wheel placement plate fixedly connected to its four corners, and each of the base wheel placement plates has a movable wheel rotatably connected to its bottom.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, two resistor grouting and pressing mechanisms are provided on both sides of the equipment. When the resistor blank is transported to the mold cavity, the grouting and pressing mechanisms on both sides can be started synchronously according to the preset parameters. The grouting component accurately injects a quantitative amount of encapsulation material into the cavity, while the pressing component closes and pressurizes the cavity, so that the encapsulation material is evenly filled and tightly bonded to the blank. There is no need for manual operation of the pressing device, which reduces the manual intervention links, simplifies the cumbersome manual operation steps in traditional production, and improves the overall production efficiency.

[0024] 2. In this utility model, the automatic electrode picking device set at the front and rear of the equipment can accurately move to the corresponding cavity according to the position signal after the resistor in the cavity has been cooled and solidified. The device uses a suitable gripping structure to stably hold the resistor, and then pulls it out of the cavity and transfers it to the storage box below the equipment. This reduces the production interval of a single batch of products, speeds up the production pace, and thus effectively improves the overall production efficiency. Attached Figure Description

[0025] Figure 1 This is a perspective view of the precision multi-cavity mold for packaging molded resistors proposed in this utility model.

[0026] Figure 2 This is a right view of the precision multi-cavity mold for molding resistor packaging proposed in this utility model.

[0027] Figure 3 This is a schematic diagram of the grouting mold mechanism in the precision multi-cavity mold for molding resistor packaging proposed in this utility model.

[0028] Figure 4 This is a schematic diagram of the electrode-removing mechanism in a precision multi-cavity mold for packaging molded resistors, as proposed in this utility model.

[0029] Figure 5 This is a schematic diagram of the storage box mechanism in the precision multi-cavity mold for molding resistor packaging proposed in this utility model.

[0030] Legend:

[0031] 1. Base plate; 2. Bottom connecting plate; 3. Grouting mold mechanism; 31. Connecting bottom plate; 32. Support column; 33. Top support assembly; 331. Top connecting plate; 332. Connecting plate fixing bolt; 34. Hydraulic push block; 35. Hydraulic push rod; 36. Mold engaging; 37. Grouting opening; 4. Electrode picking mechanism; 41. Side connecting plate; 42. Side opening; 43. Side connecting column; 44. Side connecting plate; 45. Side hydraulic block; 46. Front and rear hydraulic rods; 47. Electrode engaging key; 48. Electrode cell; 5. Bolt opening; 6. Main fixing bolt; 7. Middle support rod; 8. Middle support plate; 9. Fan housing; 10. Cooling fan; 11. Resistor placement box; 12. Placement box handle; 13. Bottom wheel placement plate; 14. Moving wheel. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figure 1 , Figure 2 and Figure 3 An embodiment of this utility model provides a precision multi-cavity mold for encapsulating a molded resistor, including a base plate 1, a bottom connecting piece 2 fixedly connected to the top of the base plate 1, and a grouting mold mechanism 3 provided on both the left and right sides of the top of the base plate 1. The grouting mold mechanism 3 is used for opening and closing grouting and molding the resistor. An electrode picking mechanism 4 is provided on both the front and rear sides of the top of the base plate 1. The electrode picking mechanism 4 is used for automatically picking up the electrode tube for grouting and molding to make the resistor.

[0034] The grouting mold mechanism 3 includes two connecting base plates 31. The bottoms of the two connecting base plates 31 are fixedly connected to the top left and right sides of the base plate 1, respectively. Multiple support columns 32 are fixedly connected to the top of each of the two connecting base plates 31. The top of each of the multiple support columns 32 is provided with the same top support component 33. The top of each of the two top support components 33 is provided with two hydraulic push blocks 34. Multiple hydraulic push rods 35 are fixedly connected between adjacent hydraulic push blocks 34. A locking mold 36 is fixedly connected between adjacent hydraulic push rods 35. Grouting openings 37 are opened between adjacent locking molds 36.

[0035] Specifically, the precision multi-cavity mold for the molded resistor encapsulation carries each component through the base plate 1, the grouting mold mechanism 3 completes the grouting and molding, and the electrode picking mechanism 4 realizes automatic picking, working together to complete the resistor encapsulation. The base plate 1 is a horizontally placed rectangular plate, and a bottom connecting piece 2 is fixedly connected to its top surface. The bottom connecting piece 2 is set along the length direction of the base plate 1 and is located in the middle of the top of the base plate 1 to enhance the stability of the connection between the base plate 1 and the components above. The grouting mold mechanism 3 is symmetrically arranged on the left and right sides of the top of the base plate 1, and the two grouting mold mechanisms 3 have the same structure and size.

[0036] The grouting mold mechanism 3 includes two connecting base plates 31, which are fixed to the front and rear ends of the left and right sides of the top of the base plate 1, respectively. The bottom of the connecting base plate 31 is tightly attached to the top surface of the base plate 1 and fixed by bolts. Each connecting base plate 31 has multiple support columns 32 fixedly connected vertically upward at the top. The support columns 32 are evenly distributed at the four corners of the top of the connecting base plate 31 and have the same height. Together, they support the top support assembly 33. The top support assembly 33 is a rectangular frame structure. Its bottom is fixedly connected to the top of the multiple support columns 32. The whole assembly is in a horizontal state and parallel to the base plate 1.

[0037] Each of the two top support components 33 is provided with two hydraulic push blocks 34 at its top. The hydraulic push blocks 34 are arranged along the length of the top support component 33, and their bottoms are fixedly connected to the top surface of the top support component 33. Multiple hydraulic push rods 35 are fixedly connected between adjacent hydraulic push blocks 34. The two ends of the hydraulic push rods 35 are respectively connected to the sides of two adjacent hydraulic push blocks 34, and can extend and retract with the movement of the hydraulic push blocks 34. A locking mold 36 is fixedly connected between adjacent hydraulic push rods 35. The side of the locking mold 36 is fixed to the end of the hydraulic push rod 35. Two adjacent locking molds 36 can move closer to each other under the action of the hydraulic push rods 35 to complete the opening and closing action.

[0038] Multiple locking molds 36 are provided with grouting openings 37 between adjacent molds. The grouting openings 37 penetrate the side of the locking molds 36. When the locking molds 36 are closed, the grouting openings 37 on adjacent locking molds 36 are connected to each other to form a complete grouting channel for injecting encapsulation material into the mold. The electrode picking mechanism 4 is provided on the front and rear sides of the top of the base plate 1, which corresponds to the grouting mold mechanism 3 on the left and right sides, respectively, and is used to automatically pick up and place the electrode tube during the resistor encapsulation process.

[0039] Reference Figure 1 , Figure 2 and Figure 4The electrode picking mechanism 4 includes two side connecting pieces 41. The bottom of the two side connecting pieces 41 is fixedly connected to the top front and rear sides of the base plate 1, respectively. Side openings 42 are provided at the four corners of the top of the two side connecting pieces 41. Side connecting posts 43 are fixedly connected at the four corners of the top of the two side connecting pieces 41. The top of the multiple side connecting posts 43 is fixedly connected to the same side connecting plate 44. Side hydraulic blocks 45 are fixedly connected to the top of the two side connecting plates 44. Front and rear hydraulic rods 46 are fixedly connected between adjacent sides of the two side hydraulic blocks 45. Electrode locking keys 47 are fixedly connected between adjacent sides of the two front and rear hydraulic rods 46. Electrode cells 48 are slidably connected between adjacent sides of the two electrode locking keys 47.

[0040] Specifically, the electrode picking mechanism 4, as an important component of the mold, works in conjunction with the grouting mold mechanism 3 to realize the automatic picking and placement of electrodes, ensuring the automated operation of the encapsulation process. The electrode picking mechanism 4 is located on the front and rear sides of the top of the base plate 1, corresponding to the position of the grouting mold mechanism 3. It includes two side connecting pieces 41, which are fixed to the left and right ends of the front and rear sides of the top of the base plate 1, respectively. The bottom of the side connecting pieces 41 is fixed to the top surface of the base plate 1 by welding, and the whole is in a horizontal state.

[0041] Each side connecting piece 41 has a side opening 42 at each of the four corners at the top. The side opening 42 is a circular through hole that penetrates the upper and lower surfaces of the side connecting piece 41. It is used to reduce the weight of the side connecting piece 41 and provide installation space for the connecting components. At each of the four corners at the top of the side connecting piece 41, a side connecting post 43 is fixedly connected to the inside of the side opening 42. The side connecting post 43 extends vertically upward and is fixedly connected to the top surface of the side connecting piece 41 at the bottom. The four side connecting posts 43 are at the same height and are fixedly connected to the same side connecting plate 44 at the top. The side connecting plate 44 is a rectangular plate and its bottom surface is tightly attached to and fixed to the top of the multiple side connecting posts 43, which serves to connect and support the components above.

[0042] A side hydraulic block 45 is fixedly connected to the top center of each of the two side connecting plates 44. The side hydraulic block 45 is a cuboid structure, and its bottom is fixed to the top surface of the side connecting plate 44 to provide hydraulic power. A front and rear hydraulic rod 46 is fixedly connected between the adjacent sides of the two side hydraulic blocks 45. The two ends of the front and rear hydraulic rod 46 are respectively connected to the sides of the two side hydraulic blocks 45 and can extend and retract in the front and rear direction under the drive of the side hydraulic blocks 45. An electrode locking key 47 is fixedly connected between the adjacent ends of the two front and rear hydraulic rods 46. The side of the electrode locking key 47 is fixed to the ends of the front and rear hydraulic rods 46 and moves back and forth with the extension and retraction of the front and rear hydraulic rods 46. The adjacent inner surfaces of the two electrode locking keys 47 are provided with grooves. The two ends of the electrode core 48 are respectively embedded in the grooves of the two electrode locking keys 47 and form a sliding connection with the electrode locking keys 47. The electrode core 48 can slide along the length of the groove to adjust its position to meet the needs of picking up electrodes of different specifications.

[0043] Reference Figure 1 , Figure 2 and Figure 5 The top support assembly 33 includes two top connecting pieces 331. The bottom of the two top connecting pieces 331 is fixedly connected to the top of multiple support columns 32 on the left and right sides. Connecting piece fixing bolts 332 are provided at the four corners of the top of the two top connecting pieces 331. Bolt holes 5 are provided at the four corners of the top of the bottom plate 1. Main fixing bolts 6 are slidably connected inside the multiple bolt holes 5. Multiple middle support rods 7 are fixedly connected to the front and rear sides of the top of the bottom connecting piece 2. The same middle support piece 8 is fixedly connected to the top of the multiple middle support rods 7. Fan housings 9 are fixedly connected to the top of the two middle support pieces 8. Cooling fans 10 are provided inside the two fan housings 9. Resistor placement boxes 11 are provided on the front and rear sides of the bottom of the bottom of the bottom plate 1. Placement box handles 12 are fixedly connected to the opposite side of the two resistor placement boxes 11. Bottom wheel placement pieces 13 are fixedly connected to the four corners of the bottom of the two resistor placement boxes 11. Moving wheels 14 are rotatably connected to the bottom of the multiple bottom wheel placement pieces 13.

[0044] Specifically, the top support assembly 33 includes two top connecting plates 331, which correspond to the grouting mold mechanism 3 on the left and right sides respectively. Their bottoms are fixedly connected to the tops of multiple support columns 32 on the left and right sides respectively. The top connecting plates 331 are rectangular plates placed horizontally, and their edges are completely aligned with the top edges of the support columns 32. They cover the top of the support columns 32 and are used to support the hydraulic push block 34 component above. Each top connecting plate 331 has a connecting plate fixing bolt 332 at the four corners of its top. The connecting plate fixing bolt 332 passes through the top connecting plate 331 in the vertical direction and cooperates with the threaded holes preset on the top of the support column 32. By tightening the connecting plate fixing bolt 332, the connection between the top connecting plate 331 and the support column 32 can be further strengthened to prevent the top connecting plate 331 from shifting when under force.

[0045] Bolt holes 5 are provided at the four corners of the top of the base plate 1. The bolt holes 5 are circular through holes that penetrate the upper and lower surfaces of the base plate 1 in a vertical direction. The diameter of the holes is slightly larger than the diameter of the main fixing bolts 6. The main fixing bolts 6 are slidably connected inside the multiple bolt holes 5. The threaded part of the main fixing bolts 6 completely penetrates the bolt holes 5. When it is necessary to fix the mold, the main fixing bolts 6 are screwed down into the threaded groove of the installation foundation to fix the base plate 1 to the installation foundation. The fixation can be released by unscrewing the main fixing bolts 6.

[0046] Multiple central support rods 7 are fixedly connected to the front and rear sides of the top of the bottom connecting plate 2. The central support rods 7 are evenly distributed on the front and rear sides of the top of the bottom connecting plate 2, and the spacing between two adjacent central support rods 7 is equal. The central support rods 7 are columnar and extend vertically upward. Their bottoms are fixed to the top surface of the bottom connecting plate 2 by welding, and their tops are all fixedly connected to the same central support plate 8. The central support plate 8 is a horizontally set rectangular plate located directly above the bottom connecting plate 2 and parallel to the bottom connecting plate 2. It is used to support the fan housing 9 and the internal cooling fan 10.

[0047] Fan housings 9 are fixedly connected to the top of each of the two central support plates 8. The bottom edge of the fan housing 9 is fixed to the top surface of the central support plate 8 with screws, forming a closed hollow cuboid space inside, which can protect the internal cooling fan 10 from external dust and debris. Cooling fans 10 are installed inside each of the two fan housings 9. The outer edge of the cooling fan 10 is tightly fitted to the inner wall of the fan housing 9, and its central axis corresponds to the center of the fan housing 9. The cooling fan 10 can rotate around its own central axis inside the fan housing 9, generating airflow to achieve heat dissipation.

[0048] Resistor placement boxes 11 are provided on the front and rear sides of the bottom of the base plate 1. The resistor placement box 11 is a rectangular box with an open top, located below the base plate 1, making it convenient to take out the items stored inside. The two resistor placement boxes 11 are fixedly connected to the side of the two resistor placement boxes 11 that are far apart. The placement box handle 12 is a U-shaped structure, with its two ends fixedly connected to the middle of the side of the resistor placement box 11, and is in a horizontal state, so that the operator can hold it to move the resistor placement box 11.

[0049] Bottom wheel placement plates 13 are fixedly connected to the four corners of the bottom of the two resistor placement boxes 11. The bottom wheel placement plates 13 are sheet-like structures that extend vertically downward. The top is welded and fixed to the bottom surface of the resistor placement box 11, and the bottom is bent outward to form a connecting part for mounting the moving wheels 14. The bottom of the multiple bottom wheel placement plates 13 is rotatably connected to the moving wheels 14. The axle of the moving wheels 14 is connected to the connecting part at the bottom of the bottom wheel placement plates 13 through a bearing, so that the moving wheels 14 can rotate freely around the axle, thereby driving the resistor placement box 11 to move as a whole.

[0050] Working principle: The precision multi-cavity mold for molding resistor encapsulation carries each component through the base plate 1, the grout injection mold mechanism 3 is responsible for grout injection molding, and the electrode picking mechanism 4 completes the automatic picking of electrodes. All components work together to realize resistor encapsulation.

[0051] After the device is started, the base plate 1 is fixed to the installation foundation through the bolt holes 5 at the four corners of the top and the main fixing bolts 6. The bottom connecting piece 2 enhances the structural stability of the base plate 1. The electrode picking mechanism 4 starts to work. The side connecting piece 41 supports the top side connecting column 43. The side connecting column 43 carries the side connecting plate 44. The side hydraulic block 45 on the side connecting plate 44 drives the front and rear hydraulic rods 46 to extend and retract, which drives the electrode locking key 47 to move. The electrode core 48 slides between the electrode locking keys 47 to adjust its position, grabs the external electrode tube and moves it to the locking mold 36 of the grouting mold mechanism 3.

[0052] The connecting base plate 31 of the grouting mold mechanism 3 is fixed to the top of the base plate 1. The support column 32 supports the top support assembly 33. The top connecting plate 331 is reinforcedly connected to the support column 32 through the connecting plate fixing bolt 332, and carries the hydraulic push block 34. The hydraulic push block 34 drives the hydraulic push rod 35 to extend and retract, so that the locking mold 36 opens and closes. After the electrode tube is placed in place, the locking mold 36 closes, and the encapsulation material is injected through the adjacent grouting openings 37 to complete the resistor molding encapsulation.

[0053] During the encapsulation process, the middle support rod 7 at the top of the bottom connecting piece 2 supports the middle support piece 8, and the fan housing 9 on the middle support piece 8 protects the internal cooling fan 10. The cooling fan 10 rotates to generate airflow to dissipate heat from the injection mold mechanism 3 and surrounding components. After encapsulation, the electrode removal mechanism 4 operates again to remove the cooled resistor from the locking mold 36 and transfer it to the resistor placement box 11 at the bottom of the base plate 1.

[0054] The resistor placement box 11 is moved by the moving wheel 14 connected to the bottom wheel placement plate 13. The handle 12 of the placement box is easy for the operator to push and pull. The packaged resistor is temporarily stored. The hydraulic push block 34 in the grouting mold mechanism 3 drives the hydraulic push rod 35 to drive the locking mold 36 to open and close. It works with the grouting opening 37 to complete the automatic grouting and pressing, reducing manual intervention, simplifying the traditional steps of manual grouting and pressing, and reducing the intensity and error of manual operation.

[0055] The electrode picking mechanism 4 uses a hydraulic block 45 in the middle to drive the front and rear hydraulic rods 46, which in turn drive the electrode locking key 47 and the electrode core 48 to pick up, transfer and remove the resistor. This eliminates the need for manual handling, saves production steps, speeds up the production pace, and improves overall production efficiency to meet the needs of large-scale production.

[0056] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A precision multi-cavity mold for molding resistor packaging, comprising a base plate (1), characterized in that: The bottom plate (1) is fixedly connected to the top of the bottom plate (1). The bottom plate (1) is provided with grouting mold mechanism (3) on the left and right sides of the top. The grouting mold mechanism (3) is used to open and close the grouting and mold the resistor. The bottom plate (1) is provided with electrode picking mechanism (4) on the front and back sides of the top. The electrode picking mechanism (4) is used to automatically pick up the electrode tube for grouting and molding to make the resistor. The grouting mold mechanism (3) includes two connecting base plates (31). The bottoms of the two connecting base plates (31) are fixedly connected to the top left and right sides of the base plate (1). Multiple support columns (32) are fixedly connected to the top of the two connecting base plates (31). The top of the multiple support columns (32) is provided with the same top support component (33). The top of the two top support components (33) is provided with two hydraulic push blocks (34). Multiple hydraulic push rods (35) are fixedly connected between adjacent hydraulic push blocks (34). A locking mold (36) is fixedly connected between adjacent hydraulic push rods (35). Grouting openings (37) are opened between adjacent locking molds (36).

2. The precision multi-cavity mold for molding resistor packaging according to claim 1, characterized in that: The electrode picking mechanism (4) includes two side connecting pieces (41). The bottom of the two side connecting pieces (41) is fixedly connected to the front and rear sides of the top of the base plate (1). The four corners of the top of the two side connecting pieces (41) are provided with side openings (42). The four corners of the top of the two side connecting pieces (41) are fixedly connected with side connecting posts (43). The tops of the multiple side connecting posts (43) are fixedly connected with the same side connecting plate (44). The tops of the two side connecting plates (44) are fixedly connected with side hydraulic blocks (45). The adjacent sides of the two side hydraulic blocks (45) are fixedly connected with front and rear hydraulic rods (46). The adjacent sides of the two front and rear hydraulic rods (46) are fixedly connected with electrode locking keys (47). The adjacent sides of the two electrode locking keys (47) are slidably connected with electrode cells (48).

3. The precision multi-cavity mold for molding resistor packaging according to claim 1, characterized in that: The top support assembly (33) includes two top connecting pieces (331). The bottom of the two top connecting pieces (331) is fixedly connected to the top of multiple support columns (32) on the left and right sides respectively. Connecting piece fixing bolts (332) are provided at the four corners of the top of the two top connecting pieces (331).

4. The precision multi-cavity mold for molding resistor packaging according to claim 1, characterized in that: Bolt holes (5) are provided at the four corners of the top of the base plate (1), and main fixing bolts (6) are slidably connected inside the multiple bolt holes (5).

5. The precision multi-cavity mold for molding resistor packaging according to claim 1, characterized in that: The top front and rear sides of the bottom connecting piece (2) are respectively fixedly connected to a plurality of central support rods (7), and the top of the plurality of central support rods (7) are respectively fixedly connected to the same central support piece (8).

6. The precision multi-cavity mold for molding resistor packaging according to claim 5, characterized in that: The top of each of the two central support plates (8) is fixedly connected to a fan housing (9), and a cooling fan (10) is provided inside each of the two fan housings (9).

7. The precision multi-cavity mold for molding resistor packaging according to claim 1, characterized in that: The bottom of the base plate (1) is provided with resistor placement boxes (11) on both the front and rear sides, and the two resistor placement boxes (11) are fixedly connected to the opposite sides of each other with a placement box handle (12).

8. The precision multi-cavity mold for molding resistor packaging according to claim 7, characterized in that: Each of the two resistor placement boxes (11) has a bottom wheel placement piece (13) fixedly connected at the four corners of its bottom, and each of the bottom wheel placement pieces (13) has a movable wheel (14) rotatably connected to its bottom.

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