Compression molding device for aluminum oxide ball processing

Abstract

The invention discloses a compression molding device for aluminum oxide ball machining, relates to the technical field of molding machining, and aims to solve the problems that in the demolding process of compression molding, time consumed in the overturning stage is too much, and the space occupied by overturning is inconvenient to adjust. The device comprises a forming box, linear guide rails are arranged on the two sides of the forming box, the forming box is slidably provided with a multi-die forming assembly through the linear guide rails, the multi-die forming assembly comprises multi-die rod bases which are arranged in a contact mode, and multi-station synchronous pressing is completed through a die cavity formed between the multi-die rod bases and an upper die base; after compression molding, synchronous overturning of multiple mold rod bases is achieved in a matched meshing transmission mode of the multi-addendum gear set and the multi-addendum toothed rod set, the purpose of continuous injection-compression-demolding is achieved, and time consumption and occupied space of the overturning stage are greatly reduced.

Description

Technical Field

[0001] The invention relates to the technical field of forming and processing, and in particular to a pressing and forming device for processing alumina balls. Background Art

[0002] Alumina ball is a spherical material made of aluminum oxide, which has the characteristics of high hardness, high strength, high temperature resistance, wear resistance and good chemical stability. Its application fields include catalyst carriers, grinding and polishing materials, petrochemical industry, surface protective coatings and luminescent materials. The manufacturing process of alumina ball includes the steps of raw material selection, mixing, molding, calcination and surface treatment. Different molding methods (such as extrusion molding, pellet molding, rolling ball burning method, melt blowing method, etc.) are suitable for different application needs and performance requirements.

[0003] Among them, in the process of pressing and forming, the industry basically adopts hydraulic forming to complete it. In this process, a pressing machine is used to inject alumina powder into the mold cavity, apply pressure and maintain pressure, and finally demold. However, when demolding, due to the preparation of a large number of alumina balls in a single batch, the entire mold needs to be turned over to complete demolding. The demolding process needs to be turned 180° before all the balls can fall off. In this process, the time consumption of the flipping stage and the space occupied by the mold flipping are undoubtedly greatly increased, and there are defects in use.

[0004] To this end, this application proposes a solution. Summary of the invention

[0005] The object of the present invention is to provide a pressing and forming device for processing alumina balls, which is used to solve the problems that the flipping stage in the demoulding process of the pressing and forming is too time-consuming and the space occupied by the flipping is inconvenient to adjust.

[0006] The object of the present invention can be achieved by the following technical solutions: A pressing and forming device for processing alumina balls, comprising a forming box, linear guide rails are arranged on both sides of the forming box, and a multi-mode forming assembly is slidably mounted on the forming box through the linear guide rails;

[0007] The multi-mode molding assembly comprises a multi-mode rod seat arranged in contact with each other, a lower mold cavity for injecting alumina raw materials is opened on the multi-mode rod seat, a material injection box is installed in the middle of the upper end of the molding box, and a discharge hose vertically corresponding to the lower mold cavity is installed at the lower end of the material injection box;

[0008] A multi-tooth top gear set is installed on the outer ends of several multi-mode rod seats, and a multi-tooth top gear rod set is installed on the outer side of the linear guide rail corresponding to the molding box. The multi-mode rod seat can achieve 180° flipping through the synchronous meshing transmission of the multi-tooth top gear set and the multi-tooth top gear rod set.

[0009] It is further configured as follows: the multi-tooth top gear set includes gear A, gear B, gear C, gear D, gear E, gear F and gear G, and the multi-tooth top gear rod set includes tooth segment A, tooth segment B, tooth segment C, tooth segment D, tooth segment E, tooth segment F and tooth segment G which are arranged continuously.

[0010] It is further configured that the gear A, gear B, gear C, gear D, gear E, gear F and gear G are respectively meshed with the tooth segment A, tooth segment B, tooth segment C, tooth segment D, tooth segment E, tooth segment F and tooth segment G for transmission;

[0011] The meshing transmission process of the gears A, B, C, D, E, F and G on the tooth segments A, B, C, D, E, F and G drives the multi-mode rod seat to rotate one circle.

[0012] It is further configured as follows: a bidirectional hydraulic press is commonly provided on the upper and lower sides of the molding box corresponding to the multi-mold rod seat, and an upper mold seat corresponding to the lower mold cavity is installed on the lower side of the upper end of the bidirectional hydraulic press, and an upper mold cavity is provided in the upper mold seat to cooperate with the lower mold cavity and form a spherical cavity.

[0013] It is further configured as follows: a matching cavity is opened in the upper section of the multi-mode rod seat corresponding to the lower mold cavity, the multi-mode rod seat is molded with the upper mold seat through the matching cavity, and a cooling flow channel for cooling and demoulding is opened on the outer peripheral side of the multi-mode rod seat corresponding to the lower mold cavity.

[0014] It is further configured as follows: mounting rods are provided at the upper ends of both sides of the forming box, the linear guide rail is provided at the inner upper end of the mounting rod, and the multi-tooth top gear rod group is provided at the outer upper end of the linear guide rail.

[0015] It is further configured as follows: a rotating rod is rotatably arranged on the outer side of each multi-mode rod seat, a rotating seat is installed on the outer end of the rotating rod, and the multi-tooth top gear set penetrates the rotating seat and extends to the outside.

[0016] It is further configured as follows: a discharge chute is provided at the inner bottom of the molding box, and the discharge chute is inclined along the direction of the bidirectional hydraulic press and the injection box.

[0017] The present invention has the following beneficial effects:

[0018] 1. The present invention aims to solve the problem that the demoulding process of press molding consumes too much time in the flipping stage and the space occupied by the flipping is inconvenient to adjust. On the one hand, the multi-station synchronous pressing is completed by a multi-mode molding assembly, and after the press molding, the multi-tooth top gear set and the multi-tooth top gear rod set are used to realize the synchronous flipping of the multi-mode rod seat, which embodies the purpose of continuous injection-pressing-demolding, greatly reducing the time and space occupied in the flipping stage; on the other hand, cooling oil is injected into the cooling channel, so that the lower mold cavity after the press molding can be continuously cooled, and the aluminum oxide ball is demoulded immediately after continuous cooling, and then quickly collected;

[0019] 2. The synchronous flipping action: the meshing transmission process of gear A, gear B, gear C, gear D, gear E, gear F and gear G on tooth segment A, tooth segment B, tooth segment C, tooth segment D, tooth segment E, tooth segment F and tooth segment G drives the multi-mode rod seat to rotate one circle, that is, drives the multi-mode rod seat to produce a synchronous self-rotation action, rather than the entire multi-mode pressing and forming assembly to complete the flipping by revolution, which greatly reduces the time and space occupied in the flipping stage and improves the pressing and forming efficiency of alumina balls. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 It is a bottom view structural schematic diagram of the present invention;

[0023] Figure 3 is a side cross-sectional view of the present invention;

[0024] Figure 4 It is a structural diagram of the installation structure of the multi-mode rod seat of the present invention;

[0025] Figure 5 It is a partial schematic diagram of the moving state of the multi-mode rod seat of the present invention;

[0026] Figure 6 It is a partial schematic diagram of the flipped multi-mode rod base of the present invention;

[0027] Figure 7 A bottom view of the multi-mode rod base of the present invention after flipping;

[0028] Figure 8It is a schematic diagram of the main structure of the present invention;

[0029] Fig. 9 It is a structural diagram of a multi-tooth top gear rod assembly of the present invention;

[0030] Fig.10 It is a schematic diagram of the docking of the upper die base and the lower die base of the present invention.

[0031] In the figure: 1. molding box; 2. discharge chute; 3. bidirectional hydraulic press; 4. injection box; 5. feeding pipe; 6. discharge hose; 7. rotating seat; 8. multi-mold rod seat; 9. multi-tooth top gear set; 91. gear A; 92. gear B; 93. gear C; 94. gear D; 95. gear E; 96. gear F; 10. lower mold cavity; 11. mounting rod; 12. multi-tooth top gear rod set; 121. tooth segment A; 122. tooth segment B; 123. tooth segment C; 124. tooth segment D; 125. tooth segment E; 126. tooth segment F; 127. tooth segment G; 13. upper mold seat; 14. upper mold cavity; 15. matching cavity; 16. rotating rod; 17. linear guide; 18. cooling channel. DETAILED DESCRIPTION

[0032] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Embodiment 1: In view of the problem that the demoulding process of compression molding has the problem that the flipping stage takes too much time and the space occupied by the flipping is inconvenient to adjust, the following technical solution is proposed:

[0034] Reference Figure 1 - Fig.10 As shown, a pressing and forming device for processing alumina balls in this embodiment includes a forming box 1, and linear guide rails 17 are arranged on both sides of the forming box 1. The forming box 1 is slidably mounted with a multi-mode forming assembly through the linear guide rails 17;

[0035] The multi-mold forming assembly includes a multi-mold rod seat 8 that is arranged in contact with each other, and a lower mold cavity 10 for injecting alumina raw materials is opened on the multi-mold rod seat 8. A material injection box 4 is installed in the middle of the upper end of the forming box 1, and a discharge hose 6 vertically corresponding to the lower mold cavity 10 is installed at the lower end of the material injection box 4;

[0036] The outer ends of the plurality of multi-mode rod seats 8 are jointly equipped with a multi-tooth top gear set 9, and the outer side of the molding box 1 corresponding to the linear guide 17 is equipped with a multi-tooth top gear rod set 12, and the multi-mode rod seat 8 is turned 180 degrees through the synchronous meshing transmission of the multi-tooth top gear set 9 and the multi-tooth top gear rod set 12;

[0037] Reference Figure 4 - Figure 7 and Fig. 9 As shown, the multi-tooth top gear set 9 includes gear A91, gear B92, gear C93, gear D94, gear E95, gear F96 and gear G97, and the multi-tooth top gear rod set 12 includes a tooth segment A121, a tooth segment B122, a tooth segment C123, a tooth segment D124, a tooth segment E125, a tooth segment F126 and a tooth segment G127 which are arranged continuously;

[0038] The gear A91, gear B92, gear C93, gear D94, gear E95, gear F96 and gear G97 are meshed with the gear segment A121, gear segment B122, gear segment C123, gear segment D124, gear segment E125, gear segment F126 and gear segment G127 for transmission respectively, and the meshing transmission process of the gear A91, gear B92, gear C93, gear D94, gear E95, gear F96 and gear G97 on the gear segment A121, gear segment B122, gear segment C123, gear segment D124, gear segment E125, gear segment F126 and gear segment G127 drives the multi-mode rod seat 8 to rotate one circle;

[0039] Reference Figure 8 As shown, mounting rods 11 are provided on the upper ends of both sides of the molding box 1, linear guide rails 17 are provided on the inner upper ends of the mounting rods 11, and multi-tooth top gear rod groups 12 are provided on the outer upper ends of the linear guide rails 17, and a rotating rod 16 is rotatably provided on the outer side of each multi-mode rod seat 8, a rotating seat 7 is installed on the outer end of the rotating rod 16, and a multi-tooth top gear group 9 penetrates the rotating seat 7 and extends to the outside; a discharge chute 2 is provided on the inner bottom of the molding box 1, and the discharge chute 2 is inclined along the direction of the two-way hydraulic press 3 and the injection box 4, so that the alumina balls demolded after molding can be quickly collected.

[0040] Basic principle: In the process of pressing and forming the alumina ball, the present invention completes the synchronous pressing of multiple stations through the mold cavity formed between the multi-mode rod seat 8 and the upper mold seat 14. After the pressing and forming, the multi-mode rod seat 8 is synchronously turned over by the coordinated meshing transmission mode of the multi-tooth top gear set 9 and the multi-tooth top gear rod set 12, which embodies the purpose of continuous injection-pressing-demolding, greatly reducing the time and space occupied in the turning stage;

[0041] Specifically, when the multi-mode rod seat 8 is located at the bottom of the injection box 4, the alumina raw material pre-injected into the injection box 4 through the feeding pipe 5 is discharged into the discharge hose 6, and is injected into the lower mold cavity 10 through the matching cavity 15 one by one, and then the multi-mode rod seat 8 moves backward to the bottom of the two-way hydraulic press 3, and the upper push part of the lower side of the two-way hydraulic press 3 completes the push movement of the bottom of the multi-mode rod seat 8 and the upper pressing part completes the pressing of the top, so that the upper mold seat 13 completes the pressing and molding of the alumina raw material located in the lower mold cavity 10, and after a period of time, an alumina ball is formed, and the two-way hydraulic press 3 is separated from the multi-mode rod seat 8, and the multi-mode rod seat 8 is reset and moved to complete demoulding;

[0042] The flipping action during demoulding is as follows: during the movement of the multi-mode rod seat 8 through the linear guide rail 12, the multi-tooth top gear set 9 located at the outer end of the multi-mode rod seat 8 and the corresponding multi-tooth top gear rod set 12 complete synchronous meshing transmission, and synchronously complete the flipping action of the multi-mode rod seat 8, so that the lower mold cavity 10 on the multi-mode rod seat 8 faces downward to complete the separation of the internal aluminum oxide ball finished product, and the aluminum oxide ball falls off and falls into the discharge chute 2 to complete rolling collection;

[0043] The specific details of the flipping and meshing are as follows: the meshing transmission process of gear A91, gear B92, gear C93, gear D94, gear E95, gear F96 and gear G97 on tooth segment A121, tooth segment B122, tooth segment C123, tooth segment D124, tooth segment E125, tooth segment F126 and tooth segment G127 drives the multi-mode rod seat 8 to rotate one circle, thereby driving the multi-mode rod seat 8 to complete synchronous flipping, and automatically completes the flipping and resetting when the multi-mode rod seat 8 is reset to the injection position.

[0044] Embodiment 2: This embodiment is based on the compression molding structure of embodiment 1 and is further optimized:

[0045] Reference Fig.10 As shown, a bidirectional hydraulic press 3 is provided on both upper and lower sides of a molding box 1 corresponding to a multi-mode rod seat 8, an upper die seat 13 corresponding to a lower die cavity 10 is installed on the lower side of the upper end of the bidirectional hydraulic press 3, an upper die cavity 14 which cooperates with the lower die cavity 10 and forms a spherical cavity is provided in the upper die seat 13, a matching cavity 15 is provided in the upper section of the multi-mode rod seat 8 corresponding to the lower die cavity 10, the multi-mode rod seat 8 is molded with the upper die seat 13 through the matching cavity 15, and a cooling channel 18 for cooling and demoulding is provided on the outer peripheral side of the multi-mode rod seat 8 corresponding to the lower die cavity 10;

[0046] During the cooling and demolding process, after the alumina balls are pressed and formed, cooling oil is injected into the cooling channel 18 so that the lower mold cavity 10 after pressing and forming can be continuously cooled, and the alumina balls are demolded immediately after continuous cooling, and then quickly collected.

[0047] The cooperation between the upper die seat 13 and the multi-mode rod seat 8 is as follows: the discharge hose 6 is used to first complete the injection of the aluminum oxide raw material and accumulate it in the cooperation cavity 15, and then under the pressing action of the bidirectional hydraulic press 3, the aluminum oxide raw material in the cooperation cavity 15 is formed into aluminum oxide balls under the joint action of the upper die seat 13 and the multi-mode rod seat 8.

[0048] Example 3: Reference Figure 1 - Fig.10 As shown, this embodiment is based on the contents of the first and second embodiments to form the following pressing method:

[0049] Step 1: When the multi-mold rod seat 8 is located at the bottom of the injection box 4, the alumina raw material pre-injected into the injection box 4 through the feeding pipe 5 is discharged into the discharge hose 6 and injected into the lower mold cavity 10 through the matching cavity 15 one by one;

[0050] Step 2: The multi-mode rod seat 8 is then moved backward to the bottom of the bidirectional hydraulic press 3, and the upper push portion of the lower side of the bidirectional hydraulic press 3 completes the push movement of the bottom of the multi-mode rod seat 8 and the upper pressing portion completes the pressing of the top, so that the upper die seat 13 completes the pressing and forming of the alumina raw material in the lower die cavity 10;

[0051] Step 3: After a period of time, the aluminum oxide balls are formed, the bidirectional hydraulic press 3 is separated from the multi-mode rod seat 8, and the multi-mode rod seat 8 is reset and moved to complete demoulding. Specifically, after the aluminum oxide balls are pressed and formed, cooling oil is injected into the cooling channel 18, so that the lower mold cavity 10 after the pressing and forming can be continuously cooled, and the aluminum oxide balls are demoulded immediately after continuous cooling, and then quickly collected;

[0052] Step 4: In step 2, the cooperation between the upper die seat 13 and the multi-mode rod seat 8 is as follows: the discharge hose 6 is used to first complete the injection of the alumina raw material and accumulate it in the cooperation cavity 15, and then under the pressing action of the bidirectional hydraulic press 3, the alumina raw material in the cooperation cavity 15 is formed into alumina balls under the joint action of the upper die seat 13 and the multi-mode rod seat 8.

[0053] In summary: on the one hand, the synchronous pressing of multiple stations is completed through the multi-mode molding assembly, and after the pressing and molding, the synchronous flipping of the multi-mode rod seat is realized by the coordinated meshing transmission mode of the multi-tooth top gear group and the multi-tooth top gear rod group, which embodies the purpose of continuous injection-pressing-demolding, and greatly reduces the time and space occupied in the flipping stage; on the other hand, cooling oil is injected into the cooling channel 18, so that the lower membrane cavity 10 after the pressing and molding can be continuously cooled, and the alumina balls are immediately demolded after continuous cooling, and then quickly collected.

[0054] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A pressing and forming device for processing alumina balls, comprising a forming box (1), characterized in that: Linear guide rails (17) are arranged on both sides of the molding box (1), and a multi-mold molding assembly is slidably mounted on the molding box (1) via the linear guide rails (17); The multi-mold forming assembly comprises a multi-mold rod seat (8) arranged in contact with each other, a lower mold cavity (10) for injecting alumina raw materials is provided on the multi-mold rod seat (8), a material injection box (4) is installed in the middle of the upper end of the forming box (1), and a discharge hose (6) vertically corresponding to the lower mold cavity (10) is installed at the lower end of the material injection box (4); A multi-tooth top gear set (9) is installed on the outer ends of a plurality of multi-mode rod seats (8), a multi-tooth top gear rod set (12) is installed on the outer side of the linear guide rail (17) corresponding to the molding box (1), and the multi-mode rod seat (8) is turned 180 degrees through the synchronous meshing transmission of the multi-tooth top gear set (9) and the multi-tooth top gear rod set (12).

2. A pressing and forming device for processing alumina balls according to claim 1, characterized in that: The multi-tooth top gear set (9) comprises a gear A (91), a gear B (92), a gear C (93), a gear D (94), a gear E (95), a gear F (96) and a gear G (97); the multi-tooth top gear rod set (12) comprises a tooth segment A (121), a tooth segment B (122), a tooth segment C (123), a tooth segment D (124), a tooth segment E (125), a tooth segment F (126) and a tooth segment G (127) which are arranged in series.

3. A pressing and forming device for processing alumina balls according to claim 2, characterized in that: The gear A (91), gear B (92), gear C (93), gear D (94), gear E (95), gear F (96) and gear G (97) are respectively meshed with the tooth segment A (121), tooth segment B (122), tooth segment C (123), tooth segment D (124), tooth segment E (125), tooth segment F (126) and tooth segment G (127) for transmission; The meshing transmission process of the gear A (91), gear B (92), gear C (93), gear D (94), gear E (95), gear F (96) and gear G (97) on the tooth segment A (121), tooth segment B (122), tooth segment C (123), tooth segment D (124), tooth segment E (125), tooth segment F (126) and tooth segment G (127) drives the multi-mode rod seat (8) to rotate one circle.

4. A pressing and forming device for processing alumina balls according to claim 1, characterized in that: A bidirectional hydraulic press (3) is commonly provided on the upper and lower sides of the molding box (1) corresponding to the multi-mold rod seat (8); an upper mold seat (13) corresponding to the lower mold cavity (10) is installed on the lower side of the upper end of the bidirectional hydraulic press (3); an upper mold cavity (14) is provided in the upper mold seat (13) and cooperates with the lower mold cavity (10) to form a spherical cavity.

5. A pressing and forming device for processing alumina balls according to claim 4, characterized in that: The multi-mode rod seat (8) is provided with a matching cavity (15) at the upper section corresponding to the lower mold cavity (10); the multi-mode rod seat (8) is molded with the upper mold seat (13) via the matching cavity (15); and the multi-mode rod seat (8) is provided with a cooling channel (18) for cooling and demoulding at the outer peripheral side corresponding to the lower mold cavity (10).

6. A pressing and forming device for processing alumina balls according to claim 1, characterized in that: The upper ends of both sides of the molding box (1) are provided with mounting rods (11), the linear guide rail (17) is arranged at the inner upper end of the mounting rod (11), and the multi-tooth top gear rod group (12) is arranged at the outer upper end of the linear guide rail (17).

7. A pressing and forming device for processing alumina balls according to claim 1, characterized in that: A rotating rod (16) is rotatably arranged on the outer side of each multi-mode rod seat (8), a rotating seat (7) is mounted on the outer end of the rotating rod (16), and the multi-tooth top gear set (9) penetrates the rotating seat (7) and extends to the outer side.

8. A pressing and forming device for processing alumina balls according to claim 4, characterized in that: The inner bottom of the molding box (1) is provided with a discharge chute (2), and the discharge chute (2) is inclined in the direction of the bidirectional hydraulic press (3) and the injection box (4).

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