Wax press with demolding structure

Abstract

The utility model relates to the field of wax presses, and discloses a wax press with a demoulding structure, which comprises a base, a wax pressing plate, a lower cylinder I and a lower cylinder II, a hydraulic cylinder is arranged in the middle of the upper part of a support column, a push rod of the hydraulic cylinder penetrates through a top plate to be arranged below the top plate and is connected with the wax pressing plate, a mould base is arranged above the base, and the lower part of the mould base is connected with the demoulding structure. The bottom end of the interior of the mold base is sunken downwards to form six evenly-distributed lower caulking grooves, lower push-out discs are slidably placed in the lower caulking grooves, a first lower air cylinder and a second lower air cylinder which are annularly distributed are installed on the surface of the lower end of the base, and push rods of the first lower air cylinder and the second lower air cylinder penetrate through lower penetrating holes to be connected with the lower push-out discs. The six lower push-out discs which are distributed circumferentially are embedded in the mold base, three lower push-out discs are connected with the first lower air cylinder, the other three lower push-out discs are connected with the second lower air cylinder, the lower push-out discs and the second lower air cylinder can push wax to move upwards, and then the wax can be completely separated from the mold base.

Description

Technical Field

[0001] The utility model relates to the field of wax pressing machines, in particular to a wax pressing machine with a demoulding structure. Background Art

[0002] The wax press is an instrument used for wax mold forming of small and medium-sized complex, high-quality, and high-precision precision castings. Generally, after the wax press is completed, the wax will be adsorbed on the wax pressed parts. In order not to affect subsequent use, the wax needs to be demolded.

[0003] Chinese patent number CN216502205U records an efficient wax pressing machine that is easy to demold. It mainly uses the vibration of the cam to make the No. 1 elastic part vibrate, and the vibration of the No. 1 elastic part is transmitted to the No. 2 vibration block. The vibration of the No. 2 vibration block can make the wax adsorbed on the wax pressing plate vibrate off, thereby improving the demolding work efficiency.

[0004] With respect to the above-mentioned related technologies, the inventor believes that there are the following defects: in the above-mentioned structure, the first elastic member and the second vibration block are both arranged below the wax pressing plate. Usually, after being pressed and formed, the wax will not only adhere to the lower part of the wax pressing plate, but may also adhere to the inner wall of the mold. The above-mentioned structure can prevent the wax from adhering to the wax pressing plate, but it cannot quickly demold the wax from the mold. For this reason, we designed a wax pressing machine with a demolding structure. Utility Model Content

[0005] In order to solve the technical problem that the wax and the mold cannot be demoulded quickly, the utility model provides a wax pressing machine with a demoulding structure.

[0006] The utility model is implemented by the following technical scheme: a wax pressing machine with a demoulding structure, comprising a base, a wax pressing plate, a lower cylinder 1 and a lower cylinder 2, a support column is arranged at each of the four corners above the base, a top plate is fixed above the four support columns, and a hydraulic cylinder is installed in the middle position above the support column, a push rod of the hydraulic cylinder passes through the top plate and is placed below the top plate and is connected to the wax pressing plate;

[0007] The mold base is arranged above the base and is placed directly below the wax pressing plate. The bottom end of the interior of the mold base is recessed downward to form six evenly distributed lower embedded grooves, in which a lower ejection plate is slidably placed, and the lower embedded groove penetrates downward to form a lower through hole. Three annularly distributed lower cylinders 1 and 2 are installed on the lower end surface of the base, and the push rods of the lower cylinders 1 and 2 pass through the lower through holes to be connected with the lower ejection plate.

[0008] As a further improvement of the above scheme, the three lower cylinders one and the three lower cylinders two are staggered in design, and a lower cylinder two is arranged between every two adjacent lower cylinders one. The three lower cylinders one and the three lower cylinders two are staggered to push the upper lower ejection plate, and the three lower cylinders one make the wax separate from the inner wall of the mold base, while the three lower cylinders two make the wax separate from the lower ejection plate.

[0009] As a further improvement of the above scheme, the lower end surface of the wax pressing plate is recessed upward to form six upper embedded grooves distributed in a ring shape, an upper ejection plate is slidably placed in the upper embedded groove, and an upper through hole is formed through the upper embedded groove upward. The upper ejection plate can make the wax separate from the wax pressing plate so that it will not adhere to the lower surface of the wax pressing plate.

[0010] As a further improvement of the above scheme, three upper cylinders 1 and 2 are installed on the upper surface of the wax pressing plate in an annular arrangement. The push rods of the upper cylinders 1 and 2 pass through the upper through holes and are connected to the upper ejection plate below. The three upper cylinders 1 and the three upper cylinders 2 are staggered. The three upper cylinders 1 allow the wax to escape from the bottom of the wax pressing plate, while the three upper cylinders 2 allow the wax to escape from the upper ejection plate.

[0011] As a further improvement of the above solution, the lower end surface of the upper ejection plate is flush with the lower end surface of the wax pressing plate, and the upper end surface of the lower ejection plate is flush with the inner bottom end of the mold base, ensuring the integrity of the wax after pressing and molding.

[0012] As a further improvement of the above scheme, two symmetrically distributed guide rods are provided on the upper end surface of the wax pressing plate, and the guide rods slide through the top plate and are placed above it, which can guide and stabilize the up and down movement of the wax pressing plate and improve stability.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The utility model embeds six lower push-out plates distributed in a circumference inside the mold base, and three lower push-out plates are connected to the lower cylinder 1, and the other three lower push-out plates are connected to the lower cylinder 2, which can push the wax upward respectively, thereby making the wax completely separated from the mold base;

[0015] 2. By embedding six upper push-out plates under the wax pressing plate, three of which are connected to the upper cylinder 1, and the other three are connected to the upper cylinder 2, they can push the wax down respectively, thereby separating the wax from the wax pressing plate, which is convenient for the overall rapid demoulding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a wax injection machine with a demoulding structure provided by the utility model;

[0017] Figure 2 for Figure 1 Schematic diagram from top view;

[0018] Figure 3 for Figure 1 Schematic diagram of the structure of the medium pressure wax plate;

[0019] Figure 4 Schematic diagram of the structure of the base and the mold base.

[0020] Description of main symbols:

[0021] 1. Base; 2. Support column; 21. Top plate; 3. Hydraulic cylinder; 4. Wax pressing plate; 41. Guide rod; 42. Upper ejector plate; 43. Upper embedding groove; 44. Upper through hole; 5. Upper cylinder 1; 6. Upper cylinder 2; 7. Mold base; 71. Lower embedding groove; 72. Lower through hole; 8. Lower cylinder 1; 9. Lower cylinder 2. DETAILED DESCRIPTION

[0022] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0023] Example:

[0024] Please combine Figure 1-Figure 4 A wax pressing machine with a demoulding structure in this embodiment includes a base 1, a wax pressing plate 4, a lower cylinder 1 8 and a lower cylinder 2 9. A support column 2 is arranged at each of the four corners above the base 1. A top plate 21 is fixed above the four support columns 2. A hydraulic cylinder 3 is installed in the middle position above the support columns 2. A push rod of the hydraulic cylinder 3 passes through the top plate 21 and is placed below the top plate 21 and is connected to the wax pressing plate 4.

[0025] The mold base 7 is arranged above the base 1, and it is placed directly below the wax pressing plate 4. The bottom end of the mold base 7 is recessed downward to form six evenly distributed lower embedded grooves 71. A lower ejection plate is slidably placed in the lower embedded groove 71, and the lower embedded groove 71 is penetrated downward to form a lower through hole 72. Three annularly distributed lower cylinders 1 8 and lower cylinders 2 9 are installed on the lower end surface of the base 1. The push rods of the lower cylinders 1 8 and 9 pass through the lower through holes 72 to connect with the lower ejection plate.

[0026] The three lower cylinders 1 8 and the three lower cylinders 2 9 are staggered in design, and a lower cylinder 2 9 is arranged between every two adjacent lower cylinders 1 8. The three lower cylinders 1 8 and the three lower cylinders 2 9 are staggered to push the upper lower ejection plate, and the three lower cylinders 1 8 make the wax separate from the inner wall of the mold base 7, and the three lower cylinders 2 9 make the wax separate from the lower ejection plate.

[0027] The lower end surface of the wax pressing plate 4 is recessed upward to form six upper embedding grooves 43 distributed in an annular shape, in which an upper ejection plate 42 is slidably placed, and an upper through hole 44 is formed through the upper embedding groove 43 upward. The upper ejection plate 42 can separate the wax from the wax pressing plate 4 so that it will not adhere to the lower surface of the wax pressing plate 4.

[0028] The upper surface of the wax pressing plate 4 is provided with three annularly distributed upper cylinders 1 5 and upper cylinders 2 6. The push rods of the upper cylinders 1 5 and 2 6 pass through the upper through hole 44 and are connected with the upper ejection plate 42 below. The three upper cylinders 1 5 and the three upper cylinders 2 6 are staggered. The three upper cylinders 1 5 allow the wax to escape from the bottom of the wax pressing plate 4, while the three upper cylinders 2 6 allow the wax to escape from the upper ejection plate 42.

[0029] The lower end surface of the upper ejection plate 42 is flush with the lower end surface of the wax pressing plate 4, and the upper end surface of the lower ejection plate is flush with the inner bottom end of the mold base 7, ensuring the integrity of the wax after pressing and molding.

[0030] Two symmetrically distributed guide rods 41 are provided on the upper end surface of the wax pressing plate 4, and the guide rods 41 slide through the top plate 21 and are placed above it, which can guide and stabilize the up and down movement of the wax pressing plate 4 and improve stability.

[0031] The implementation principle of a wax pressing machine with a demoulding structure in the embodiment of the present application is as follows: after the wax pressing plate 4 presses the wax into shape, the push rod of the hydraulic cylinder 3 will retract upward, thereby causing the wax pressing plate 4 to move upward. At the same time, the three lower cylinders 8 will also move upward at the same time, and cause the lower ejection plate above its push rod to move upward. The three upwardly moving lower ejection plates will cause the wax to follow the upward movement and break away from the adhesion with the mold base 7 and the lower ejection plate on the lower cylinder 2 9. After that, the lower cylinder 1 8 stops ejecting, and the lower ejection plates on the three lower cylinders 2 9 start to move upward. A certain distance is set, and the lower part of the wax is not bonded to the lower push-out plate on the lower cylinder 8. If the wax is attached to the lower part of the wax pressing plate 4 at this time, the three upper cylinders 5 are first driven to move the upper push-out plate 42 below them downward to separate the wax from the wax pressing plate 4 and the upper push-out plate 42 below the upper cylinder 2 6. Then the upper cylinder 5 stops pushing out, and the upper push-out plates 42 on the three upper cylinders 2 6 start to move downward a certain distance, and the upper part of the wax is not bonded to the upper push-out plate 42 on the upper cylinder 5. At this time, the demoulding of the wax can be completed;

[0032] By embedding six circumferentially distributed lower ejection plates inside the mold base 7, and three lower ejection plates are connected to the lower cylinder 1 8, and the other three lower ejection plates are connected to the lower cylinder 2 9, they can push the wax upward respectively, so that the wax can be completely separated from the mold base 7;

[0033] By embedding six upper ejection plates 42 under the wax pressing plate 4, three upper ejection plates 42 are connected to the upper cylinder 1 5, and the other three upper ejection plates 42 are connected to the upper cylinder 2 6. They can push the wax downward respectively, thereby separating the wax from the wax pressing plate, which is convenient for the overall rapid demoulding.

[0034] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A wax pressing machine with a demoulding structure, comprising a base (1), a wax pressing plate (4), a lower cylinder 1 (8) and a lower cylinder 2 (9), characterized in that: A support column (2) is provided at each of the four corners above the base (1); a top plate (21) is fixed above the four support columns (2); a hydraulic cylinder (3) is installed in the middle position above the support column (2); a push rod of the hydraulic cylinder (3) passes through the top plate (21) and is placed below the top plate (21) and is connected to a wax pressing plate (4); The mold base (7) is arranged above the base (1) and is placed directly below the wax pressing plate (4). The bottom end of the mold base (7) is recessed downward to form six evenly distributed lower embedded grooves (71). A lower ejection plate is slidably placed in the lower embedded groove (71), and the lower embedded groove (71) is penetrated downward to form a lower through hole (72). The lower end surface of the base (1) is provided with three annularly distributed lower cylinders one (8) and lower cylinder two (9). The push rods of the lower cylinder one (8) and lower cylinder two (9) pass through the lower through hole (72) and are connected to the lower ejection plate.

2. A wax injection machine with a demoulding structure as claimed in claim 1, characterized in that: The three lower cylinders one (8) and the three lower cylinders two (9) are designed to be staggered, and a lower cylinder two (9) is arranged between every two adjacent lower cylinders one (8).

3. A wax injection machine with a demoulding structure as claimed in claim 1, characterized in that: The lower end surface of the wax pressing plate (4) is recessed upward to form six upper embedding grooves (43) distributed in an annular shape, an upper ejection plate (42) is slidably placed in the upper embedding groove (43), and the upper embedding groove (43) is penetrated upward to form an upper through hole (44).

4. A wax injection machine with a demoulding structure as claimed in claim 3, characterized in that: The upper surface of the wax pressing plate (4) is provided with three annularly distributed upper cylinders 1 (5) and 2 (6), and the push rods of the upper cylinders 1 (5) and 2 (6) pass through the upper through holes (44) and are connected to the upper push-out plate (42) below.

5. A wax injection machine with a demoulding structure as claimed in claim 4, characterized in that: The lower end surface of the upper ejection plate (42) is flush with the lower end surface of the wax pressing plate (4), and the upper end surface of the lower ejection plate is flush with the inner bottom end of the mold base (7).

6. The wax injection machine with a demoulding structure according to claim 1, characterized in that: The upper end surface of the wax pressing plate (4) is provided with two symmetrically distributed guide rods (41), and the guide rods (41) slide through the top plate (21) and are placed above it.

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