A movable ejector pin type venting mold core for forming multi-directional dovetail groove back texture of ceramic tiles

Abstract

This utility model discloses a movable ejector pin type venting mold core for forming multi-directional dovetail groove back patterns in ceramic tiles, relating to the technical field of dovetail groove venting mold cores. This utility model includes a mold core and a venting mechanism, which is disposed inside the mold core. Specifically, the material pushes the ejector pin into the mold core, and gas enters the vent through the gas collection groove, then through the gap between the ejector pin and the vent, into the gap between the sealing ring block and venting groove one, then into venting groove two, and finally into the ventilation groove. Air from the left, right, and back ends of the mold core is collected at the center through several ventilation grooves, then enters the V-shaped groove through two ventilation grooves inside the front end, and finally exits through the exhaust groove. This structure opens the venting channel by the material squeezing the ejector pin, concentrating and venting the gas. After the ceramic tile is removed, the ejector pin automatically resets, sealing the venting channel, thus flexibly and efficiently completing the venting process.

Description

Technical Field

[0001] This utility model belongs to the technical field of dovetail groove venting mold core, and in particular relates to a movable ejector pin type venting mold core for forming multi-directional dovetail groove back texture of ceramic tiles. Background Technology

[0002] During the pressing process of ceramic tiles, a large amount of air will be trapped between the material particles. As the pressing pressure increases, this air will flow to the bottom of the mold core. If the mold core lacks an exhaust structure, the gas flowing to the bottom of the mold core will be trapped. Gas retention will cause problems such as delamination, cracking, uneven surface of the ceramic tile body. Multi-directional dovetail groove mold cores will have more dead corners, and the gas retention phenomenon will be more serious.

[0003] Traditional mold core venting structures typically involve creating a cavity inside the mold core, with several venting holes on both sides of the outer surface of the mold that communicate with the cavity. These venting holes are then sealed by several ejector pins. When pressing material, the operator moves the ejector pins slightly to open the venting holes, allowing the gas to escape through the tiny gap between the ejector pins and the venting holes. After pressing, the ejector pins are returned to their original positions. However, multi-directional dovetail groove mold cores are often mesh-like, so manually moving the ejector pins to open and close the venting holes significantly increases the workload for the operator and is time-consuming, thus reducing the efficiency of tile production. Utility Model Content

[0004] The purpose of this invention is to provide a movable ejector pin type venting mold core for forming multi-directional dovetail groove back patterns in ceramic tiles. By setting up a venting mechanism, specifically, the material pushes the ejector pin into the mold core, and the gas enters the venting port through the gas collection groove. It then enters the gap between the sealing ring block and venting groove one through the gap between the ejector pin and the venting port, then enters venting groove two, and finally enters the ventilation groove. Air from the left, right, and back ends of the mold core is collected at the center through several ventilation grooves, then enters the V-shaped groove through two ventilation grooves inside the front end, and finally exits through the exhaust groove. This structure opens the venting channel by the material squeezing the ejector pin, concentrating and venting the gas. After the ceramic tile is removed, the ejector pin automatically resets, sealing the venting channel. This allows for flexible and efficient venting, solving the problem that existing mold core venting structures often require workers to move the ejector pin to allow gas to escape through the tiny gap between the ejector pin and the venting hole. However, multi-directional dovetail groove mold cores are often mesh-like and have a complex structure, making manual opening and closing of the venting hole time-consuming and laborious, thus reducing production efficiency.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a movable ejector pin type venting mold core for forming multi-directional dovetail groove back patterns in ceramic tiles, including the mold core and further comprising:

[0007] A venting mechanism, disposed inside the mold core, is used to expel air surrounding the mold core. The venting mechanism includes an ejector pin, the outer surface of which is fixedly connected to a sealing ring block; and

[0008] A cleaning mechanism is disposed inside the mold core and is used to clean up materials that have entered the mold core.

[0009] The mold core is cross-shaped, and several sets of venting mechanisms are provided. Several venting mechanisms are distributed in a cross shape inside the mold core, and the outer surface of the sealing ring block is covered with rubber.

[0010] Furthermore, the venting mechanism includes a venting port opened inside the mold core, and the mold core is provided with a plurality of venting grooves one, venting groove two and fixing grooves, and an annular block is fixedly connected at the connection between venting groove two and fixing groove.

[0011] The vent extends to the outside of the mold core, and the vent, vent groove one, vent groove two and fixing groove are interconnected.

[0012] Furthermore, a blocking block 1 is fixedly connected at the connection between the first exhaust groove and the second exhaust groove, a blocking block 2 is fixedly connected at the center of the outer surface of the ejector pin, and a sealing ring is installed on the inner ring of the annular block;

[0013] Wherein, the diameter of the inner ring of the first blocking block is smaller than the diameter of the second blocking block, and the outer surfaces of both the first blocking block and the second blocking block are arc-shaped.

[0014] Furthermore, two gas collecting grooves are provided on the left and right sides of the four corners of the mold core. The ejector pin and the annular block slide and limit each other. The cross-shaped gas collecting groove can not only concentrate and guide the gas into the exhaust port, but also effectively prevent the material from sticking to the gas collecting groove with a small area.

[0015] The gas collecting groove is cross-shaped, the inner wall of the gas collecting groove is arc-shaped, and the gas collecting groove is connected to the exhaust port.

[0016] Furthermore, a round block is fixedly connected to the end of the ejector pin away from the exhaust port. The round block is slidably limited to the inner wall of the fixing groove. A spring is fixedly connected to the inner wall of the fixing groove. The other end of the spring is fixedly connected to the end of the round block away from the ejector pin.

[0017] The annular block is arranged in a ring shape, and the spring is used to push the ejector pin to reset.

[0018] Furthermore, the mold core has four ventilation slots inside, a V-shaped groove is provided inside the mold core near the front, and an air outlet slot is provided on the front of the mold core.

[0019] The four ventilation slots are arranged in a cross shape, and the connection points of the four ventilation slots are interconnected. The ventilation slots are interconnected with the exhaust slots. The V-shaped circular groove is interconnected with the two ventilation slots and with the exhaust slot. The V-shaped circular groove can concentrate and guide the gas in the two ventilation slots into the exhaust slot.

[0020] Furthermore, the cleaning mechanism includes a knob, an elastic rope is installed on the front of the mold core, the front of the knob is fixedly connected to the other end of the elastic rope, a sealing plug is fixedly connected to the back of the knob, the outer surface of the sealing plug is provided with threads, the inner wall of the air outlet groove is provided with a threaded groove, the sealing plug is threadedly connected to the threaded groove of the inner wall of the air outlet groove through the outer surface threads, and the outer surface of the sealing plug is covered with rubber, which can improve the sealing effect;

[0021] The elastic rope is made of elastic material, the sealing ring is made of rubber, and the outer surface of the sealing plug is covered with rubber.

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

[0023] 1. This utility model features an exhaust mechanism. Specifically, the material pushes the ejector pin into the mold core, and the gas enters the exhaust port through the gas collection groove. It then enters the gap between the sealing ring block and the first exhaust groove through the gap between the ejector pin and the exhaust port, and then enters the second exhaust groove. Finally, it enters the ventilation groove. The air from the left, right, and back ends of the mold core is collected at the center through several ventilation grooves, and then enters the V-shaped circular groove through the two ventilation grooves inside the front end. Finally, it is discharged through the exhaust groove. This structure opens the exhaust channel by the material squeezing the ejector pin, and concentrates the gas for discharge. After the tile is removed, the ejector pin automatically resets and seals the exhaust channel, which can flexibly and efficiently complete the exhaust.

[0024] 2. This utility model, through the setting of a cleaning mechanism, specifically, during exhaust, the gas will carry a small amount of particulate material, which first impacts the first blocking block, and is blocked again by the second blocking block when it continues to flow. Then, the blower is activated, and the air is diverted through the V-shaped circular groove into several ventilation grooves inside the mold core, and then into the exhaust groove 2, blowing the material deposited at the bottom into the exhaust groove 1. Then, the material in the exhaust groove 1 is blown out through the exhaust port. After the tile is removed, the spring pushes the ejector pin to reset, and the sealing ring pushes the material out of the inner wall of the exhaust port. This structure blocks the material in the air through multiple blocking measures, and then cleans the material in the exhaust channel by external blowing.

[0025] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0028] Figure 2 This is a schematic diagram of the overall structure of the exhaust mechanism of this utility model;

[0029] Figure 3 This is a schematic diagram of the structure of the blocking block of this utility model;

[0030] Figure 4 This is a schematic diagram of the ventilation groove structure of this utility model;

[0031] Figure 5 This is a schematic diagram of the overall structure of the cleaning mechanism of this utility model.

[0032] The attached diagram lists the components represented by each number as follows:

[0033] 1. Mold core; 2. Exhaust mechanism; 21. Exhaust port; 211. Air collection groove; 22. Exhaust groove one; 23. Exhaust groove two; 24. Fixing groove; 241. Annular block; 243. Spring; 25. Ejector pin; 251. Sealing ring block; 253. Round block; 26. Vent groove; 261. V-shaped round groove; 262. Air outlet groove; 3. Cleaning mechanism; 31. Knob; 311. Elastic rope; 312. Sealing plug; 313. Threaded groove; 32. Block one; 321. Block two; 322. Sealing ring. Detailed Implementation

[0034] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0035] Please see Figures 1-5As shown, this utility model is a movable ejector pin type venting mold core for forming multi-directional dovetail groove back patterns of ceramic tiles. It includes a mold core 1 and further includes: an venting mechanism 2, which is disposed inside the mold core 1 and is used to vent the air around the mold core 1. The venting mechanism 2 includes an ejector pin 25, and a sealing ring block 251 is fixedly connected to the outer surface of the ejector pin 25; and a cleaning mechanism 3, which is disposed inside the mold core 1 and is used to clean the material entering the mold core 1. The mold core 1 is cross-shaped, and several sets of venting mechanisms 2 are provided. Several venting mechanisms 2 are distributed in a cross shape inside the mold core 1, and the outer surface of the sealing ring block 251 is covered with rubber. The venting mechanism 2 includes a vent 21 located inside the mold core 1. The mold core 1 has several venting grooves 22, 23, and a fixing groove 24. An annular block 241 is fixedly connected to the connection between the venting grooves 23 and the fixing groove 24. The vent 21 extends to the outside of the mold core 1, and the vent 21, venting grooves 22, 23, and fixing groove 24 are interconnected. A blocking block 32 is fixedly connected to the connection between the venting grooves 22 and 23. A blocking block 321 is fixedly connected to the center of the outer surface of the ejector pin 25. A sealing ring 322 is installed on the inner ring of the annular block 241. The diameter of the inner ring of the blocking block 32 is smaller than the diameter of the blocking block 321, and the outer surfaces of both the blocking block 32 and the blocking block 321 are arc-shaped. Two air collecting grooves 211 are provided on the left and right sides of each of the four corners of the mold core 1. The ejector pin 25 is slidably limited to the annular block 241. The air collecting groove 211 is cross-shaped and the inner wall of the air collecting groove 211 is arc-shaped. The air collecting groove 211 is connected to the vent 21. A round block 253 is fixedly connected to the end of the ejector pin 25 away from the vent 21. The round block 253 is slidably limited to the inner wall of the fixing groove 24. A spring 243 is fixedly connected to the inner wall of the fixing groove 24. The other end of the spring 243 is fixedly connected to the end of the round block 253 away from the ejector pin 25. The annular block 241 is annular, and the spring 243 is used to push the ejector pin 25 to reset.The mold core 1 has four ventilation slots 26 inside. A V-shaped groove 261 is located near the front of the mold core 1, and an venting slot 262 is located on the front of the mold core 1. Material pushes the ejector pin 25 into the mold core 1. Gas enters the venting port 21 through the gas collecting slot 211, passes through the gap between the ejector pin 25 and the venting port 21, enters the gap between the sealing ring block 251 and the first venting slot 22, then enters the second venting slot 23, and finally enters the ventilation slots 26. Air from the left, right, and back ends of the mold core 1 is collected at the center through several ventilation slots 26, and then passes through the inner end of the front end... The two ventilation slots 26 of the part enter the V-shaped circular groove 261 and are finally discharged through the exhaust groove 262. This structure opens the exhaust channel by squeezing the ejector pin 25 to concentrate and discharge the gas. After the tile is removed, the ejector pin 25 automatically resets and seals the exhaust channel, which can flexibly and efficiently complete the exhaust. Among them, the four ventilation slots 26 are arranged in a cross shape and are interconnected at the connection of the four ventilation slots 26. The ventilation slots 26 are interconnected with the exhaust groove 23. The V-shaped circular groove 261 is interconnected with the two ventilation slots 26 and the exhaust groove 262. The cleaning mechanism 3 includes a knob 31. An elastic rope 311 is installed on the front of the mold core 1. The front of the knob 31 is fixedly connected to the other end of the elastic rope 311. A sealing plug 312 is fixedly connected to the back of the knob 31. The outer surface of the sealing plug 312 is threaded. The inner wall of the air outlet groove 262 is provided with a threaded groove 313. The sealing plug 312 is threadedly connected to the threaded groove 313 on the inner wall of the air outlet groove 262 through the thread on its outer surface. When venting, a small amount of particulate material will be carried in the gas. It will first hit the first blocking block 32. When it continues to flow, it will be blocked again by the second blocking block 321. Then the blower will be activated, and the air will pass through the V-shaped groove. The material is diverted into several ventilation slots 26 inside the mold core 1, and then into the second exhaust slot 23. The material deposited at the bottom is blown into the first exhaust slot 22. Then, the material in the first exhaust slot 22 is blown out through the exhaust port 21. After the tile is removed, the spring 243 pushes the ejector pin 25 to reset, and the sealing ring block 251 pushes the material out of the inner wall of the exhaust port 21. This structure blocks the material in the air through multiple blocking measures, and then the material in the exhaust channel is cleaned by external air blowing. Among them, the elastic rope 311 is made of elastic material, the sealing ring 322 is made of rubber material, and the outer surface of the sealing plug 312 is covered with rubber.

[0036] A specific application of this embodiment is as follows: In use, the mold core 1 is installed inside the mold, with the knob 31 and elastic rope 311 located outside the mold. The knob 31 is rotated counterclockwise to disengage the sealing plug 312 from the vent groove 262. Then, the material is poured into the mold, and a hydraulic press is used to press down the material. As the material is compressed, the gas is driven towards the bottom of the mold core 1. When the material is squeezed, it pushes the ejector pin 25 to extend out of the mold core 1. At this time, the ejector pin 25 moves into the mold core 1. At this time, the sealing ring block 251 no longer contacts the vent 21, and the round block 253 squeezes the spring 243. At this time, the gas is guided into the vent 21 by the gas collecting groove 211, and enters the gap between the sealing ring block 251 and the first vent groove 22 through the gap between the ejector pin 25 and the vent 21. Then the gas enters the second vent groove 23 and finally enters the ventilation groove 26. As the gas enters the ventilation channel 26 from the exhaust port 21, it will carry a small amount of particulate material. During the gas flow, it will first collide with the first blocking block 32. At this time, a small amount of material is blocked by the first blocking block 32. The gas continues to flow and will be blocked again by the second blocking block 321, which will block the material again. The blocked material will be deposited at the bottom of the second exhaust channel 23. The sealing ring 322 can effectively prevent the material from entering the fixed channel 24. At this time, only a small amount of material will enter the ventilation channel 26. The air at the left end, right end and back end of the mold core 1 will be gathered at the center of the mold core 1 through several ventilation channels 26. Finally, it will enter the V-shaped circular channel 261 through the two ventilation channels 26 inside the front end of the mold core 1, and finally be discharged through the exhaust channel 262. The air in the two ventilation channels 26 inside the front end of the mold core 1 will be discharged through the V-shaped circular channel 261 and the exhaust channel 262 first.

[0037] After pressing the tiles, the air outlet pipe of the blower is rotated and inserted into the air outlet groove 262. The blower is then turned on, and air is diverted through the V-shaped groove 261 into several air vents 26 inside the mold core 1. At this time, the air enters the second exhaust groove 23, blowing the material in the air vents 26 into the second exhaust groove 23. The air entering the second exhaust groove 23 blows the material deposited at the bottom through the first blocking block 32 into the first exhaust groove 22. The air then continues to blow the material deposited in the first exhaust groove 22 out through the exhaust port 21, and then the tiles are pressed... Remove the blower. When the ejector pin 25 loses contact with the tile, the spring 243 will push the round block 253 to reset. During the reset, the sealing ring block 251 will make tight contact with the inner wall of the exhaust port 21. At the same time, since the sealing ring block 251 is made of rubber, it will push out the material on the inner wall of the exhaust port 21, further cleaning the exhaust port 21. When the side of the round block 253 away from the spring 243 contacts the ring block 241, the sealing ring block 251 has completely blocked the exhaust port 21. Then remove the blower's air outlet pipe and turn the knob 31 clockwise into the air outlet groove 262.

[0038] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0039] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A movable ejector pin type exhaust mold core for forming a multi-directional dovetail back pattern of a ceramic tile, comprising a mold core (1), characterized in that, Also includes: An exhaust mechanism (2) is provided inside the mold core (1) and is used to exhaust air around the mold core (1). The exhaust mechanism (2) includes an ejector pin (25) with a sealing ring block (251) fixedly connected to its outer surface; and A cleaning mechanism (3) is provided inside the mold core (1) and is used to clean up materials that have entered the mold core (1). The mold core (1) is cross-shaped, and the exhaust mechanism (2) is provided in several groups. Several exhaust mechanisms (2) are distributed in a cross shape inside the mold core (1), and the sealing ring block (251) is covered with rubber.

2. A movable ejector pin type exhaust mold core for forming a back pattern of a multi-directional dovetail groove of a ceramic tile according to claim 1, characterized in that, The exhaust mechanism (2) includes an exhaust port (21) opened inside the mold core (1). The mold core (1) has several exhaust grooves (22), exhaust grooves (23) and fixing grooves (24) opened inside. An annular block (241) is fixedly connected at the connection between the exhaust grooves (23) and the fixing grooves (24). The vent (21) extends to the outside of the mold core (1), and the vent (21), vent groove one (22), vent groove two (23) and fixing groove (24) are interconnected.

3. The movable ejector pin type venting mold core for forming multi-directional dovetail groove back patterns in ceramic tiles according to claim 2, characterized in that, A blocking block 1 (32) is fixedly connected at the connection between the first exhaust groove (22) and the second exhaust groove (23), a blocking block 2 (321) is fixedly connected at the center of the outer surface of the ejector pin (25), and a sealing ring (322) is installed on the inner ring of the annular block (241). The diameter of the inner ring of the first blocking block (32) is smaller than the diameter of the second blocking block (321), and the outer surfaces of the first blocking block (32) and the second blocking block (321) are both arc-shaped.

4. A movable ejector pin type exhaust mold core for forming a back pattern of a multi-directional dovetail groove of a ceramic tile according to claim 3, characterized in that, Two air collection grooves (211) are provided on the left and right sides of the four corners of the mold core (1), and the ejector pin (25) is slidably limited to the ring block (241). The gas collecting groove (211) is cross-shaped, the inner wall of the gas collecting groove (211) is arc-shaped, and the gas collecting groove (211) is connected to the exhaust port (21).

5. The movable ejector pin type venting mold core for forming multi-directional dovetail groove back patterns in ceramic tiles according to claim 4, characterized in that, A round block (253) is fixedly connected to one end of the ejector pin (25) away from the exhaust port (21). The round block (253) is slidably limited to the inner wall of the fixing groove (24). A spring (243) is fixedly connected to the inner wall of the fixing groove (24). The other end of the spring (243) is fixedly connected to the end of the round block (253) away from the ejector pin (25). The annular block (241) is arranged in a ring shape, and the spring (243) is used to push the ejector pin (25) to reset.

6. A movable ejector pin type exhaust mold core for forming a back pattern of a multi-directional dovetail groove of a ceramic tile according to claim 3, characterized in that, The mold core (1) has four ventilation slots (26) inside, a V-shaped circular groove (261) is provided inside the mold core (1) near the front, and an air outlet slot (262) is provided on the front of the mold core (1). The four ventilation slots (26) are arranged in a cross shape, and the connection points of the four ventilation slots (26) are interconnected. The ventilation slots (26) are interconnected with the exhaust slot (23). The V-shaped circular groove (261) is interconnected with the two ventilation slots (26) and the V-shaped circular groove (261) is interconnected with the exhaust slot (262).

7. A movable ejector pin type exhaust mold core for forming a back pattern of a multi-directional dovetail groove of a ceramic tile according to claim 6, characterized in that, The cleaning mechanism (3) includes a knob (31), an elastic rope (311) is installed on the front of the mold core (1), the front of the knob (31) is fixedly connected to the other end of the elastic rope (311), a sealing plug (312) is fixedly connected to the back of the knob (31), the outer surface of the sealing plug (312) is provided with threads, the inner wall of the air outlet groove (262) is provided with a threaded groove (313), and the sealing plug (312) is threadedly connected to the threaded groove (313) on the inner wall of the air outlet groove (262) through the threads on its outer surface; The elastic rope (311) is made of elastic material, the sealing ring (322) is made of rubber material, and the outer surface of the sealing plug (312) is covered with rubber.

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