Feeding structure of ceramic hot-pressing forming machine

Abstract

The utility model discloses a feeding structure of a ceramic hot-press forming machine, which comprises a rack, a material barrel assembly for placing ceramic raw materials is arranged on the rack, the material barrel assembly is connected with a discharging pipe, the discharging pipe is partially arranged in the material barrel assembly and forms a feeding section, a plurality of feeding holes are formed in the periphery of the feeding section, and the feeding holes are communicated with the discharging pipe. A feeding screw rod is arranged in the loading section; a feeding driving assembly is arranged on the machine frame and comprises a lifting part for driving the feeding screw to ascend and descend and a rotating part for driving the feeding screw to rotate, the rotating part drives the feeding screw to rotate and forces ceramic raw materials to enter the discharging pipe, and the feeding screw is driven by the lifting part to conduct discharging. And part of the ceramic raw materials in the discharging pipe are discharged out of the discharging pipe.

Description

Technical Field

[0001] This utility model relates to the technical field of ceramic hot pressing equipment, specifically to a feeding structure for a ceramic hot pressing machine. Background Technology

[0002] Hot pressing is a widely used molding process in ceramic production. Its principle is to utilize the characteristics of paraffin melting when heated and solidifying when cooled. Ceramic powder is evenly mixed with hot paraffin liquid to form a flowable slurry, which is then injected into a metal mold to form the molded blank. After cooling, the molded blank is removed.

[0003] For example, a ceramic hot pressing molding machine disclosed in CN214644518U includes a worktable, a feeding hopper below the worktable, a mold above the worktable, a feeding pipe inside the feeding hopper that passes through the worktable and connects to the mold, a storage hopper below the feeding hopper, and a discharge pipe connecting the feeding hopper and the storage hopper. An openable baffle is provided at the bottom of the feeding hopper where it connects to the discharge pipe.

[0004] When existing molding machines use air pressure for feeding, the gas needs to be continuously consumed during the feeding process. Even after feeding is completed, the excess gas is wasted, which is not conducive to the efficient use of resources. Utility Model Content

[0005] To address the technical problems existing in the background art, this utility model proposes a feeding structure for a ceramic hot pressing molding machine.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows:

[0007] A feeding structure for a ceramic hot pressing molding machine includes a frame, on which a material bucket assembly for placing and heating ceramic raw materials is provided. The material bucket assembly is connected to a discharge pipe, and part of the discharge pipe is placed inside the material bucket assembly to form a feeding section. The outer periphery of the feeding section forms a plurality of feeding holes, and a feeding screw is provided inside the feeding section.

[0008] The frame is equipped with a feeding drive assembly, which includes a lifting part that drives the feeding screw to rise and fall, and a rotating part that drives the feeding screw to rotate. The rotating part drives the feeding screw to rotate and forces the ceramic raw material into the discharge pipe. The feeding screw is also driven by the lifting part to discharge the material, so that some of the ceramic raw material in the discharge pipe is discharged from the discharge pipe.

[0009] Preferably, the frame is provided with a mounting base, the feed screw is connected to a drive shaft, and the lifting part includes a lifting unit mounted on the mounting base and a connecting seat connected to the operating end of the lifting unit. The drive shaft is rotatably mounted on the connecting seat. The rotating part includes a drive motor mounted on the frame and a drive wheel connected to the output end of the drive motor. The drive shaft is provided with a transmission wheel, and the drive wheel is connected to the transmission wheel. With the above improvements, when feeding ceramic raw materials, the drive motor drives the transmission wheel to rotate, so that the drive shaft can drive the feed screw to rotate in the feeding section. As the feed screw rotates, the heated ceramic raw materials can enter the discharge pipe through the feed hole. After feeding is completed, the lifting unit drives the drive shaft to press down, and as the feed screw descends, part of the ceramic raw materials are discharged from the discharge pipe and enter the molding die, realizing automatic feeding.

[0010] Preferably, a baffle ring is provided inside the material barrel assembly and is arranged around the outer periphery of the feeding section. The discharge pipe has a discharge state and a feeding state. When the discharge pipe is in the discharge state, the baffle ring blocks the feeding port, and when the discharge pipe is in the feeding state, the baffle ring is away from the feeding port. Through the above improvements, the baffle ring can prevent ceramic raw materials from entering from the feeding port during the discharge process.

[0011] Preferably, the material bucket assembly is equipped with a stirring plate, and the stirring plate is provided with a plurality of stirring blades. Through the above improvements, the stirring plate is rotated to stir the ceramic raw materials, thereby ensuring the uniformity of the ceramic raw materials and improving the molding quality.

[0012] Preferably, the material bucket assembly is provided with a rotating seat, the stirring disc is rotatably mounted on the rotating seat, and the outer periphery of the stirring disc forms transmission teeth. The frame is provided with a stirring unit, and the actuating end of the stirring unit is connected to a drive gear. The drive gear meshes with the transmission teeth. Through the above improvements, the stirring unit drives the drive gear to rotate, and the drive gear meshes with the transmission teeth, thereby driving the entire stirring disc to rotate.

[0013] Preferably, the mounting base forms a moving unit that drives the material retaining ring to move up and down. The moving unit is provided with a guide seat. The guide seat includes a first guide plate, a second guide plate, and a connecting column connecting the first guide plate and the second guide plate. The transmission wheel is disposed between the first guide plate and the second guide plate. Through the above improvement, the transmission wheel is disposed between the first guide plate and the second guide plate to limit the movement stroke of the transmission wheel.

[0014] Preferably, the outer contour of the feed screw fits the inner wall of the feeding section. Through the above improvements, ceramic raw materials are prevented from directly entering the discharge pipe through the gap between the feed screw and the feeding section.

[0015] Preferably, the material tank assembly includes a feeding tank and a heating oil tank. A heating ring is provided on the outer periphery of the heating oil tank, and a heating space is formed between the feeding tank and the heating oil tank. The discharge pipe is placed in the heating space. Through the above improvements, the heating ring is used to heat the heating oil tank, so that the heating oil in the heating oil tank can heat the ceramic raw materials in the discharge pipe and the feeding tank.

[0016] Preferably, the drive shaft is provided with a second stirring blade, and the second stirring blade is placed inside the material bucket assembly. Through the above improvements, the second stirring blade can rotate with the drive shaft and move up and down with the drive shaft, thereby realizing the stirring of ceramic raw materials in different areas to ensure the feeding effect.

[0017] Preferably, a first sealing ring is provided at the bottom of the baffle ring, and a second sealing ring is provided on the inner wall of the baffle ring. When the discharge pipe is in the discharge state, the first sealing ring abuts against the material barrel assembly, and the second sealing ring abuts against the outer wall of the feeding section. Through the above improvements, when the discharge pipe discharges material, the first sealing ring abuts against the material barrel assembly, and the second sealing ring abuts against the outer wall of the feeding section, which greatly increases the sealing performance between the baffle ring, the material barrel assembly, and the feeding section.

[0018] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0019] By connecting the discharge pipe to the material barrel assembly, the discharge pipe is placed inside the material barrel assembly to form a feeding section. Several feeding holes are formed on the outer periphery of the feeding section. A feeding screw is set in the feeding section, and a feeding drive assembly is set on the frame. The feeding drive assembly includes a lifting part that drives the feeding screw to rise and fall, and a rotating part that drives the feeding screw to rotate. In the entire feeding process, the rotating part first drives the feeding screw to rotate and forces the ceramic raw material into the discharge pipe. Then, the lifting part drives the feeding screw to discharge, so that some of the ceramic raw material in the discharge pipe is discharged and enters the molding die for forming. Compared with the traditional method of feeding by applying pressure with an air source, it saves more resources and has higher feeding accuracy. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the stirring plate of this utility model;

[0023] Figure 4 This is a schematic diagram of the material bucket assembly of this utility model;

[0024] Figure 5 This is a schematic diagram of the feeding drive assembly of this utility model;

[0025] Figure 6 This is a structural schematic diagram of Embodiment 2 of the present invention;

[0026] Figure 7 This is a structural schematic diagram of Embodiment 3 of the present invention;

[0027] Figure 8 For the present utility model Figure 7 A magnified view of a section at point A in the middle;

[0028] In the diagram: 1. Frame; 2. Material hopper assembly; 3. Discharge pipe; 4. Feed drive assembly; 1.1. Feeding section; 1.2. Feed hole; 1.3. Feed screw; 1.4. Mounting base; 1.5. Drive shaft; 2.1. Lifting unit; 2.2. Connecting base; 2.3. Drive motor; 2.4. Drive wheel; 2.5. Transmission wheel; 3.1. Material retaining ring; 3.2. Moving unit; 3.3. Mixing disc; 3.4. Mixing blade; 3. 5. Rotating seat; 3.6. Transmission gear; 3.7. Stirring unit; 3.8. Drive gear; 4.1. Guide seat; 4.2. First guide plate; 4.3. Second guide plate; 4.4. Connecting column; 4.5. Guide sleeve; 5.1. Feeding tank; 5.2. Heating oil tank; 5.3. Heating ring; 5.4. Heating space; 6.1. Second stirring blade; 6.2. First sealing ring; 6.3. Second sealing ring; 6.4. Material passage hole; Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0030] It should be understood that although the terms upper, middle, lower, top, one end, etc., appear in this document to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish the elements from each other for ease of understanding, and are not used to define any directional or sequential restrictions.

[0031] Example 1

[0032] like Figure 1-5As shown, a feeding structure for a ceramic hot pressing molding machine includes a frame 1. A material bucket assembly 2 for placing and heating ceramic raw materials is provided on the frame 1. The material bucket assembly 2 is connected to a discharge pipe 3. The discharge pipe 3 is partially inserted into the material bucket assembly 2 and forms a feeding section 1.1. A plurality of feeding holes 1.2 are formed on the outer periphery of the feeding section 1.1, and a feeding screw 1.3 is provided inside the feeding section 1.1.

[0033] Furthermore, a feeding drive assembly 4 is provided on the frame 1. The feeding drive assembly 4 includes a lifting part that drives the feeding screw 1.3 to rise and fall, and a rotating part that drives the feeding screw 1.3 to rotate. The rotating part drives the feeding screw 1.3 to rotate and forces the ceramic raw material into the discharge pipe 3. The feeding screw 1.3 is also driven to discharge by the lifting part so that some of the ceramic raw material in the discharge pipe 3 is discharged from the discharge pipe 3.

[0034] During the entire feeding process, the rotating part first drives the feeding screw 1.3 to rotate, and the ceramic raw material enters the discharge pipe 3 through the feeding hole 1.2 through the feeding screw 1.3. After the quantitative feeding is completed, the lifting part drives the feeding screw 1.3 to discharge the material. The feeding screw will squeeze the ceramic raw material in the discharge pipe 3, so that some of the ceramic raw material in the discharge pipe 3 is discharged from the discharge pipe 3 and enters the molding die for molding. Compared with the traditional method of feeding by applying pressure with an air source, it saves more resources and has higher feeding accuracy.

[0035] like Figure 1 , Figure 2 , Figure 5 As shown, to further explain the specific structure of the feeding drive assembly 4, the frame 1 is provided with a mounting base 1.4, the feeding screw 1.3 is connected to a drive shaft 1.5, and the lifting part includes a lifting unit 2.1 provided on the mounting base 1.4, and a connecting seat 2.2 connected to the operating end of the lifting unit 2.1. The connecting seat 2.2 is provided with a bearing, and the drive shaft 1.5 is connected to the bearing, so that the drive shaft 1.5 is rotatably mounted on the connecting seat 2.2. The rotating part includes a drive motor 2.3 provided on the frame 1, and a drive wheel 2.4 connected to the output end of the drive motor 2.3. The drive shaft 1.5 is provided with a transmission wheel 2.5, and the drive wheel 2.4 and the transmission wheel 2.5 are connected by a conveyor belt.

[0036] When feeding ceramic raw materials, the drive motor 2.3 drives the transmission wheel 2.5 to rotate, so that the drive shaft 1.5 can drive the feeding screw 1.3 to rotate in the feeding section 1.1. As the feeding screw rotates, the heated ceramic raw materials can enter the discharge pipe 3 through the feeding hole 1.2. After feeding is completed, the lifting unit 2.1 drives the drive shaft 1.5 to press down, and as the feeding screw 1.3 descends, part of the ceramic raw materials are discharged from the discharge pipe 3 and enter the molding die, realizing automatic feeding.

[0037] The outer contour of the feed screw 1.3 fits the inner wall of the feeding section 1.1 to prevent ceramic raw materials from directly entering the discharge pipe 3 through the gap between the feed screw 1.3 and the feeding section 1.1, thereby ensuring the progress of feeding.

[0038] like Figure 2 , Figure 4 , Figure 5 As shown, a further explanation of the embodiment of the baffle ring 3.1 is provided in the material barrel assembly 2. The baffle ring 3.1 is arranged around the outer periphery of the feeding section 1.1. The discharge pipe 3 includes a discharge state and a feeding state. When the discharge pipe 3 is in the discharge state, the baffle ring 3.1 blocks the feeding port. When the discharge pipe 3 is in the feeding state, the baffle ring 3.1 is away from the feeding port. The baffle ring 3.1 can prevent ceramic raw materials from entering from the feeding port during the discharge process, thereby further improving the accuracy of feeding and preventing the ceramic raw materials in the discharge pipe 3 from being discharged from the feeding port during the extrusion process.

[0039] Additionally, the mounting base 1.4 includes a moving unit 3.2 that drives the baffle ring 3.1 to move up and down. The moving unit 3.2 is equipped with a guide seat 4.1, which includes a first guide plate 4.2, a second guide plate 4.3, and a connecting post 4.4 connecting the first guide plate 4.2 and the second guide plate 4.3. The first guide plate 4.2 and the second guide plate 4.3 are equipped with guide sleeves 4.5. The drive shaft 1.5 passes through the guide sleeve 4.5, and the transmission wheel 2.5 is positioned between the first guide plate 4.2 and the second guide plate 4.3. The guide seat 4.1 guides the drive shaft 1.5, improving the stability of the drive shaft 1.5 during its up and down sliding process. The transmission wheel 2.5 is positioned between the first guide plate 4.2 and the second guide plate 4.3 to limit the travel of the transmission wheel 2.5.

[0040] like Figure 2 , Figure 3 As shown, to further explain the mixing of raw materials by the material bucket assembly 2, the material bucket assembly 2 is equipped with a mixing plate 3.3, and the mixing plate 3.3 is provided with several mixing blades 3.4. By rotating the mixing plate 3.3, the mixing blades 3.4 can mix the ceramic raw materials to ensure the uniformity of the ceramic raw materials and improve the molding quality.

[0041] Specifically, a rotating seat 3.5 is provided inside the material bucket assembly 2, and a stirring disc 3.3 is rotatably mounted on the rotating seat 3.5. The outer periphery of the stirring disc 3.3 forms a transmission gear 3.6. A stirring unit 3.7 is provided on the frame 1. The actuating end of the stirring unit 3.7 is connected to a drive gear 3.8. The drive gear 3.8 meshes with the transmission gear 3.6. The stirring unit 3.7 drives the drive gear 3.8 to rotate. The meshing of the drive gear 3.8 with the transmission gear 3.6 drives the entire stirring disc 3.3 to rotate, thereby ensuring the uniformity of the ceramic raw materials.

[0042] Preferably, the rotating base 3.5 has several material passage holes 6.4 for ceramic raw materials to pass through, so as to ensure the smoothness of material feeding.

[0043] like Figure 2 , Figure 4 As shown, in a further explanation of the embodiment of the material tank assembly 2, the material tank assembly 2 includes a feeding tank 5.1 and a heating oil tank 5.2. A heating coil 5.3 is provided on the outer periphery of the heating oil tank 5.2, and a heating space 5.4 is formed between the feeding tank 5.1 and the heating oil tank 5.2. The discharge pipe 3 is placed in the heating space 5.4. The heating coil 5.3 heats the heating oil tank 5.2, so that the heating oil in the heating oil tank 5.2 can heat the ceramic raw materials in the discharge pipe 3 and the feeding tank 5.1.

[0044] Example 2

[0045] like Figure 6 As shown, the difference between this embodiment and embodiment one is that a second stirring blade 6.1 is provided on the drive shaft 1.5, and the second stirring blade 6.1 is placed in the material bucket assembly 2. The second stirring blade 6.1 can rotate with the drive shaft 1.5 and move up and down with the drive shaft 1.5, thereby realizing the stirring of ceramic raw materials in different areas to ensure the feeding effect.

[0046] Example 3

[0047] like Figure 7 , Figure 8 As shown, the difference between this embodiment and Embodiment 1 is that a first sealing ring 6.2 is provided at the bottom of the baffle ring 3.1, and a second sealing ring 6.3 is provided on the inner wall of the baffle ring 3.1. When the discharge pipe 3 is in the discharge state, the first sealing ring 6.2 abuts against the material bucket assembly 2, and the second sealing ring 6.3 abuts against the outer wall of the feeding section 1.1. When the discharge pipe 3 discharges material, the first sealing ring 6.2 abuts against the material bucket assembly 2 to increase the sealing between the baffle ring 3.1 and the material bucket assembly 2, and the second sealing ring 6.3 abuts against the outer wall of the feeding section 1.1 to increase the sealing between the baffle ring 3.1 and the feeding section 1.1, thereby preventing ceramic raw materials from entering the feed pipe from the gap in the connection, and at the same time preventing the ceramic raw materials in the feed pipe from being discharged.

[0048] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A feeding structure for a ceramic hot pressing machine, comprising a frame (1), characterized in that, The frame (1) is provided with a material bucket assembly (2) for placing ceramic raw materials. The material bucket assembly (2) is connected to a discharge pipe (3). The discharge pipe (3) is partially placed inside the material bucket assembly (2) and forms a feeding section (1.1). The outer periphery of the feeding section (1.1) forms several feeding holes (1.2), and a feeding screw (1.3) is provided inside the feeding section (1.1). The frame (1) is provided with a feeding drive assembly (4). The feeding drive assembly (4) includes a lifting part that drives the feeding screw (1.3) to rise and fall, and a rotating part that drives the feeding screw (1.3) to rotate. The rotating part drives the feeding screw (1.3) to rotate and forces the ceramic raw material into the discharge pipe (3). The feeding screw (1.3) is driven to discharge by the lifting part so that some of the ceramic raw material in the discharge pipe (3) is discharged from the discharge pipe (3).

2. The feeding structure of a ceramic hot pressing machine according to claim 1, characterized in that: The frame (1) is provided with a mounting base (1.4), the feed screw (1.3) is connected to a drive shaft (1.5), and the lifting part includes a lifting unit (2.1) provided on the mounting base (1.4) and a connecting seat (2.2) connected to the operating end of the lifting unit (2.1). The drive shaft (1.5) is rotatably mounted on the connecting seat (2.2). The rotating part includes a drive motor (2.3) provided on the frame (1) and a drive wheel (2.4) connected to the output end of the drive motor (2.3). The drive shaft (1.5) is provided with a transmission wheel (2.5), and the drive wheel (2.4) and the transmission wheel (2.5) are connected in a transmission manner.

3. The feeding structure of a ceramic hot pressing machine according to claim 2, characterized in that: The material bucket assembly (2) is equipped with a baffle ring (3.1) that is raised and lowered. The baffle ring (3.1) is arranged around the outer periphery of the feeding section (1.1). The discharge pipe (3) includes a discharge state and a feeding state. When the discharge pipe (3) is in the discharge state, the baffle ring (3.1) blocks the feeding port. When the discharge pipe (3) is in the feeding state, the baffle ring (3.1) is away from the feeding port.

4. The feeding structure of a ceramic hot pressing machine according to claim 1, characterized in that: The material bucket assembly (2) is equipped with a stirring plate (3.3), and the stirring plate (3.3) is provided with a plurality of stirring blades (3.4).

5. The feeding structure of a ceramic hot pressing machine according to claim 4, characterized in that: The material bucket assembly (2) is provided with a rotating seat (3.5), the stirring plate (3.3) is rotated on the rotating seat (3.5), and the outer periphery of the stirring plate (3.3) forms a transmission gear (3.6). The frame (1) is provided with a stirring unit (3.7), and the actuating end of the stirring unit (3.7) is connected to a drive gear (3.8). The drive gear (3.8) meshes with the transmission gear (3.6).

6. The feeding structure of a ceramic hot pressing machine according to claim 2, characterized in that: The mounting base (1.4) forms a moving unit (3.2) for driving the baffle ring (3.1) to move up and down. The moving unit (3.2) is provided with a guide seat (4.1). The guide seat (4.1) includes a first guide plate (4.2), a second guide plate (4.3), and a connecting post (4.4) connecting the first guide plate (4.2) and the second guide plate (4.3). The transmission wheel (2.5) is disposed between the first guide plate (4.2) and the second guide plate (4.3).

7. The feeding structure of a ceramic hot pressing machine according to claim 1, characterized in that: The outer contour of the feed screw (1.3) fits against the inner wall of the feeding section (1.1).

8. The feeding structure of a ceramic hot pressing machine according to claim 1, characterized in that: The material barrel assembly (2) includes a feeding barrel (5.1) and a heating oil barrel (5.2). A heating ring (5.3) is provided on the outer periphery of the heating oil barrel (5.2), and a heating space (5.4) is formed between the feeding barrel (5.1) and the heating oil barrel (5.2). The discharge pipe (3) is placed in the heating space (5.4).

9. The feeding structure of a ceramic hot pressing machine according to claim 2, characterized in that: The drive shaft (1.5) is provided with a second stirring blade (6.1), and the second stirring blade (6.1) is placed inside the material bucket assembly (2).

10. The feeding structure of a ceramic hot pressing machine according to claim 3, characterized in that: The bottom of the baffle ring (3.1) is provided with a first sealing ring (6.2), and the inner wall of the baffle ring (3.1) is provided with a second sealing ring (6.3). When the discharge pipe (3) is in the discharge state, the first sealing ring (6.2) abuts against the material bucket assembly (2), and the second sealing ring (6.3) abuts against the outer wall of the feeding section (1.1).

Images