CN214920291U - Three-dimensional plain bumper of lost foam sand case - Google Patents
Three-dimensional plain bumper of lost foam sand case Download PDFInfo
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- CN214920291U CN214920291U CN202121133215.2U CN202121133215U CN214920291U CN 214920291 U CN214920291 U CN 214920291U CN 202121133215 U CN202121133215 U CN 202121133215U CN 214920291 U CN214920291 U CN 214920291U
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Abstract
The utility model relates to a three-dimensional plain bumper of disappearance sand case belongs to mechanical plain bumper technical field, has solved the tradition and has waited plain sand box plain bumper tight insecure, the not good technical problem of plain bumper effect. The solution is as follows: a three-dimensional compaction table for a lost foam sand box comprises a base, a plurality of groups of pillars, a plurality of groups of air springs, a vibration table, a plurality of groups of vibration motors and at least two groups of clamping devices of an air source, wherein each clamping device comprises an air cylinder, an air cylinder fixing seat, a clamping block and a control system, and the air cylinder and the vibration motors are respectively and electrically connected with the control system; the three-dimensional compaction table is arranged below a sand box running track. The utility model discloses simple structure, it is firm, the running noise descends by a wide margin, and the promotion of the tight degree of clamp makes the plain bumper's the vibration source energy obtain abundant utilization, has realized the best packing, makes the plain bumper effect better.
Description
Technical Field
The utility model belongs to the technical field of machinery plain bumper, concretely relates to three-dimensional plain bumper of disappearance sand case.
Background
The lost foam casting is a new process with almost no allowance and accurate forming, and is a novel casting method which comprises the steps of bonding and combining foaming models with similar sizes and shapes of castings into a model cluster, then coating refractory paint on the model cluster, drying the refractory paint, burying the model cluster in jewel sand or dry quartz sand for vibration molding, then pouring, gasifying the model, enabling liquid metal to occupy the position of the model, solidifying and cooling the liquid metal to form the castings.
The vibrating compaction table is one of the key devices for lost foam casting, and not only needs to vibrate and compact the molding sand, but also needs to be filled to every corner of the outer layer of the solid mold of different complicated and variable geometric shapes. Different casting molding sand needs to be filled in different main directions, the filling and compacting capabilities are increased due to the fact that the filling and compacting are required to be filled in a plurality of directions, the possibility of foam compaction deformation and even coating falling is increased, the vibration acceleration is reduced, the technical requirements of filling and compacting cannot be met, and the problems of crushing and sand sticking happen frequently.
The compaction table in the prior art adopts the vertical clamping mode to clamp the to-be-compacted sand box, the final fixation of the to-be-compacted sand box is realized by applying downward force, the clamping mode is complex in structure and loose in clamping, the transverse direction of the to-be-compacted sand box tends to move, the compaction effect is easily influenced, and the final compaction effect is further influenced. In addition, current clamping device leans on cylinder and structure to be taut from the top down, and the side does not have clamping device, and the sand box dead weight is very heavy, and the tight problem of atress clamp about can solving completely to the dead weight of box dead weight + molding sand weight of exerting oneself to generally need the manual work to remove the sand box of treating the plain sand, waste time and energy, reduce efficiency.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's shortcoming, provide a three-dimensional plain bumper of disappearance sand case, solved the tradition and waited the plain sand box plain bumper and press from both sides tightly insecure, during operation noise polluted environment, plain effect not good with technical problem such as inefficiency.
In order to solve the above problem, the technical scheme of the utility model is that: a three-dimensional compaction table of a lost foam sand box comprises a base, a plurality of groups of supporting columns, a plurality of groups of air springs, a vibration table, a plurality of groups of vibration motors and an air source, wherein the plurality of groups of supporting columns are vertically arranged on the top surface of the base; the air spring is connected with an air source through an air pipe, wherein: the three-dimensional compaction table is arranged in a compaction table accommodating cavity below a sand box running track at a compaction operation station, two groups of sand box shafts parallel to the width direction of the sand box to be compacted are fixedly arranged on two sides of the bottom surface of the sand box to be compacted respectively, sand box moving wheels are rotatably arranged at two ends of each sand box shaft, the sand box to be compacted is arranged above the sand box running track, and the sand box moving wheels are arranged on the sand box running tracks below the sand box moving wheels correspondingly; the sand box to be vibrated reciprocates along the sand box running track through the sand box moving wheel;
a first supporting table, a second supporting table and a third supporting table which are consistent in height and size are sequentially arranged in the middle of the top surface of the vibrating table along the running direction of the sand box, a first sand box shaft placing area is arranged between the first supporting table and the second supporting table, and a second sand box shaft placing area is arranged between the second supporting table and the third supporting table;
the three-dimensional compaction table further comprises at least two groups of clamping devices, wherein the two groups of clamping devices are respectively and symmetrically arranged on two sides of the vibration table in the width direction; the clamping device comprises an air cylinder, an air cylinder fixing seat, a clamping block and a control system, the air cylinder fixing seat is fixedly installed on the side wall of the width direction of the compaction table, the air cylinder is horizontally installed on the air cylinder fixing seat, the axis of the air cylinder is parallel to the width direction of the sand box to be compacted, a piston rod of the air cylinder faces the inner side of the three-dimensional compaction table, the clamping block is fixed to the head of the piston rod of the air cylinder, and the air cylinder and the vibrating motor are electrically connected with the control system respectively.
Further, the cylinder fixing seat comprises a cylinder supporting seat and a cylinder thrust seat, the cylinder supporting seat is arranged on extension plates on two sides of the width direction of the jolt ramming table, rib plates are arranged between the extension plates and the side wall of the jolt ramming table, the cylinder thrust seat is arranged on the outer side of the top surface of the cylinder supporting seat, the tail end of the cylinder is fixedly connected with the cylinder thrust seat, and the front end of the cylinder body of the cylinder is fixedly connected with the cylinder supporting seat through angle steel.
Further, the cylinder supporting seat top surface is provided with the protection casing, the cylinder sets up in the protection casing.
Furthermore, four groups of clamping devices are arranged, and two groups of clamping devices are respectively and uniformly distributed on two sides of the vibrating table in the width direction.
Further, the width dimension of plain bumper is greater than the width dimension of treating the plain bumper, sand box axle length dimension all is greater than the width dimension of first supporting bench, second supporting bench and third supporting bench, the width dimension of first supporting bench, second supporting bench and third supporting bench is the same.
Further, in the initial state of the three-dimensional compaction table, the top surface of the first supporting table is lower than the sand box shaft, and the piston rod of the cylinder is higher than the top surface of the first supporting table; and when the three-dimensional compaction table is in a clamping state, the top surfaces of the first supporting table, the second supporting table and the third supporting table are superposed with the bottom surface of the sand box to be compacted, and the clamping blocks at the end parts of the piston rods of the cylinders clamp the side walls of two sides of the sand box to be compacted.
Further, the outside of the clamping block is provided with a buffering silica gel sleeve.
Further, a guide sleeve is vertically arranged in the air spring, the guide sleeve is sleeved on the upper portion of the support column, the top surface of the guide sleeve is fixed on the top surface of the air spring, and the guide sleeve slides up and down along the support column under the deformation action of the air spring.
Furthermore, an electromagnetic valve is arranged on the air pipe and electrically connected with a control system.
Furthermore, a proximity switch and a warning light are arranged on the sand box running track on the front side of the three-dimensional compaction table, and the proximity switch and the warning light are electrically connected with the control system.
The utility model discloses the beneficial effect who produces:
1. the utility model adopts the cylinder in the clamping device to control the stretching of the clamping block, realizes the transverse clamping of the sand box to be compacted, saves the traditional upper and lower clamping structure, realizes the fixation of the sand box to be compacted in the vertical direction by the dead weight of the sand box to be compacted, and has more simplified and simple structure;
2. the first supporting table, the second supporting table and the third supporting table on the vibrating table support the sand box to be vibrated after the air spring is lifted, so that the sand box to be vibrated is separated from the running track of the sand box, vibration can be performed better and more thoroughly, and interference of the sand box shaft in the vibration process can be avoided due to the arrangement of the first sand box shaft placing area and the second sand box shaft placing area;
3. the sand box to be vibrated is not carried by using a lifting appliance and the like, the bottom of the sand box to be vibrated is provided with a sand box shaft and a sand box moving wheel, the sand box to be vibrated is slid above the three-dimensional vibrating table on the sand box running track, and after the vibrating operation is finished, the sand box to be vibrated is dropped back to the sand box running track, so that the sand box to be vibrated can be transported to the next process in a labor-saving manner, and the sand box to be vibrated is simple, quick, time-saving and labor-saving;
4. under the control of the control system, the compaction operation is more automated, in the process that the sand box to be compacted moves forwards, the proximity switch detects that the sand box to be compacted reaches the position, a signal is transmitted to the control system, the control system controls the warning lamp to light, the sand box to be compacted does not move any more, after the sand box to be compacted reaches the designated position, the control system controls the air source and the electromagnetic valve to work, under the action of the air spring, when the vibration table rises to the highest position, the control system controls the air cylinders to work, the clamping blocks on the air cylinders on the two sides clamp the side walls of the sand box to be compacted, the automation degree is high, the efficiency is high, and manual later adjustment is not needed;
5. the cylinder supporting seat, the cylinder thrust seat and the angle steel are used for fixing the cylinder, so that the cylinder is fixed stably, loosening and shifting cannot be performed in the vibration process of the vibration table, and the clamping effect and the jolt ramming effect are guaranteed;
6. the arrangement of the silica gel sleeve outside the clamping block increases the contact friction force and enhances the clamping effect.
The utility model discloses simple structure has realized treating the horizontal clamp of plain flask through clamping device's clamping effect and has pressed from both sides tightly, and is firm, and the running noise descends by a wide margin, and the promotion of the tight degree of clamp makes the plain table shake the source energy and obtain abundant utilization, has realized the best packing, makes the plain effect better.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a side view of the clamping device of FIG. 1 with the clamping device removed;
fig. 3 is a schematic structural view of the clamping device in fig. 1 in a clamping state.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in one of fig. 1 to 3, the X-axis direction in the figure is the length direction of the sand box 8 to be compacted, the vibrating table 4 and the sand box running track 9, the Y-axis direction in the figure is the width direction of the sand box 8 to be compacted and the vibrating table 4, the three-dimensional compacting table of the evanescent mode sand box to be compacted comprises a base 1, a plurality of groups of pillars 2, a plurality of groups of air springs 3, the vibrating table 4, a plurality of groups of vibrating motors 5 and an air source 6, the plurality of groups of pillars 2 are vertically arranged on the top surface of the base 1, the top end of each group of pillars 2 is provided with one group of air springs 3, the vibrating table 4 is fixedly arranged on the top surface of each air spring 3, and the periphery and the bottom of the vibrating table 4 are provided with the vibrating motors 5; the air spring 3 is connected with an air source 6 through an air pipe 7, wherein: the three-dimensional compaction table is arranged in a compaction table accommodating cavity 9-3 below a sand box running track 9 at a compaction operation station, two groups of sand box shafts 8-1 parallel to the width direction of a sand box 8 to be compacted are fixedly arranged on two sides of the bottom surface of the sand box 8 to be compacted respectively, sand box moving wheels 8-2 are rotatably arranged at two ends of each sand box shaft 8-1, the sand box 8 to be compacted is arranged above the sand box running track 9, and the sand box moving wheels 8-2 are respectively arranged on the sand box running tracks 9 below the sand box moving wheels; the sand box 8 to be vibrated reciprocates along the sand box running track 9 through a sand box moving wheel 8-2; treat the plain sand box 8 and can move on sand box orbit 9, need not artifical the position of treating the plain sand box 8 of shaking and carry and hoist, labour saving and time saving.
A first supporting table 4-1, a second supporting table 4-2 and a third supporting table 4-3 which are consistent in height and size are sequentially arranged in the middle of the top surface of the vibrating table 4 along the running direction of the sand box, a first sand box shaft placing area 4-4 is arranged between the first supporting table 4-1 and the second supporting table 4-2, and a second sand box shaft placing area 4-5 is arranged between the second supporting table 4-2 and the third supporting table 4-3; the first sand box shaft placing area 4-4 and the second sand box shaft placing area 4-5 are arranged so as not to interfere with the support of the first support table 4-1, the second support table 4-2 and the third support table 4-3 during the raising.
The three-dimensional compaction table further comprises at least two groups of clamping devices 10, wherein the two groups of clamping devices 10 are respectively and symmetrically arranged on two sides of the vibrating table 4 in the width direction; the clamping device 10 comprises an air cylinder 10-1, an air cylinder fixing seat 10-2, a clamping block 10-3 and a control system, wherein the air cylinder fixing seat 10-2 is fixedly arranged on the side wall of the width direction of the compaction table 4, the air cylinder 10-1 is horizontally arranged on the air cylinder fixing seat 10-2, the axis of the air cylinder 10-1 is parallel to the width direction of the sand box 8 to be compacted, the piston rod of the air cylinder 10-1 faces the inner side of the three-dimensional compaction table, the clamping block 10-3 is fixed at the head of the piston rod of the air cylinder 10-1, and the air cylinder 10-1 and the vibrating motor 5 are respectively and electrically connected with the control system;
further, the cylinder fixing seat 10-2 comprises a cylinder supporting seat 10-2-1 and a cylinder thrust block 10-2-2, the cylinder supporting seat 10-2-1 is arranged on an extension plate 4-6 on two sides of the width direction of the plain bumper 4, a rib plate 4-7 is arranged between the extension plate 4-6 and the side wall of the plain bumper 4, the cylinder thrust block 10-2-2 is arranged on the outer side of the top surface of the cylinder supporting seat 10-2-1, the tail end of the cylinder 10-1 is fixedly connected with the cylinder thrust block 10-2-2, and the front end of the cylinder body of the cylinder 10-1 is fixedly connected with the cylinder supporting seat 10-2-1 through an angle steel 4-8. As the cylinder 10-1 vibrates along with the vibration in the vibration process, the stability of the cylinder 10-1 is ensured by the arrangement of the cylinder supporting seat 10-2-1, the cylinder thrust block 10-2-2 and the angle steel 4-8, and the vibration effect is prevented from being influenced by the sliding of the cylinder 10-1 in the vibration process.
Further, a protective cover 10-4 is arranged on the top surface of the cylinder supporting seat 10-2-1, and the cylinder 10-1 is arranged in the protective cover 10-4. The cylinder 10-1 is protected.
Further, four groups of clamping devices 10 are provided, and two groups of clamping devices 10 are respectively and uniformly distributed on two sides of the vibration table 4 in the width direction.
Further, the width dimension of the jolt ramming table 4 is larger than the width dimension of the sand box 8 to be jolted, allowance is reserved for the movement of the air cylinder 10-1 and the extension of the piston rod thereof in the lifting and extending processes, the length dimension of the sand box shaft 8-1 is larger than the width dimensions of the first support table 4-1, the second support table 4-2 and the third support table 4-3, the length of the sand box shaft 8-1 is larger than the width of the first support table 4-1, the movement of the sand box 8 to be jolted cannot be influenced, the sand box 8 to be jolted can smoothly pass through the three-dimensional jolt ramming table, and the width dimensions of the first support table 4-1, the second support table 4-2 and the third support table 4-3 are the same.
Further, in the initial state of the three-dimensional compaction table, the top surface of the first support table 4-1 is lower than the sand box shaft 8-1, and the piston rod of the cylinder 10-1 is higher than the top surface of the first support table 4-1. The air cylinder 10-1 can clamp the to-be-vibrated sand box 8 only after the first support table 4-1 supports the to-be-vibrated sand box 8, which is higher than the top surface of the first support table 4-1, and this is a precondition for realizing the clamping. When the three-dimensional compaction table is in a clamping state, the top surfaces of the first support table 4-1, the second support table 4-2 and the third support table 4-3 are superposed with the bottom surface of the to-be-compacted sand box 8, and the clamping blocks 10-3 at the end parts of the piston rods of the cylinders 10-1 clamp the side walls of the two sides of the to-be-compacted sand box 8.
Further, a buffering silica gel sleeve is arranged outside the clamping block 10-3. So that the clamping effect is better.
Further, a guide sleeve 3-1 is vertically arranged in the air spring 3, the guide sleeve 3-1 is sleeved on the upper portion of the support column 2, the top surface of the guide sleeve 3-1 is fixed on the top surface of the air spring 3, and the guide sleeve 3-1 slides up and down along the support column 2 under the deformation action of the air spring 3. The arrangement of the guide sleeve 3-1 effectively controls the vibrating table not to generate horizontal displacement in the up-and-down moving process, and ensures accurate positioning in the horizontal direction.
Further, an electromagnetic valve 7-1 is arranged on the air pipe 7, and the electromagnetic valve 7-1 is electrically connected with a control system.
Furthermore, a proximity switch 9-1 and a warning light 9-2 are arranged on a sand box running track 9 on the front side of the three-dimensional compaction table, and the proximity switch 9-1 and the warning light 9-2 are electrically connected with a control system.
The utility model discloses a working process:
the sand box to be compacted 8 is arranged on the sand box running track 9, the sand box to be compacted 8 is conveyed to the position above the three-dimensional compaction table, when the proximity switch 9-1 detects a signal of the sand box to be compacted 8, the signal is transmitted to the control system, the control system controls the warning lamp 9-2 to be lightened, and the sand box to be compacted 8 stops moving;
the control system controls an air source 6 and an electromagnetic valve 7-1, the air source 6 supplies air to an air spring 3 through an air pipe 7, the air spring 3 is lifted, a vibrating table 4 is lifted, a first supporting table 4-1, a second supporting table 4-2 and a third supporting table 4-3 support the bottom of a sand box 8 to be vibrated, when the bottom of the sand box is lifted to the highest point, the air spring 3 stops lifting, at the moment, the control system controls an air cylinder 10-1 to work, and clamping blocks 10-3 at the piston rod heads of four groups of air cylinders 10-1 on two sides clamp the side wall of the sand box 8 to be vibrated;
the vibration motor 5 starts to tap, the clamping is stable, and the tap effect is good.
Claims (10)
1. A three-dimensional compaction table of a lost foam sand box comprises a base (1), a plurality of groups of pillars (2), a plurality of groups of air springs (3), a vibration table (4), a plurality of groups of vibration motors (5) and an air source (6), wherein the plurality of groups of pillars (2) are vertically arranged on the top surface of the base (1), the top end of each group of pillars (2) is provided with one group of air springs (3), the vibration table (4) is fixedly arranged on the top surface of each air spring (3), and the vibration motors (5) are arranged on the periphery and the bottom of the vibration table (4); air spring (3) is connected with air supply (6) through trachea (7), its characterized in that: the three-dimensional compaction table is arranged in a compaction table accommodating cavity (9-3) below a sand box running track (9) at a compaction operation station, two sides of the bottom surface of the sand box (8) to be compacted are respectively and fixedly provided with two groups of sand box shafts (8-1) parallel to the width direction of the sand box (8) to be compacted, two ends of each sand box shaft (8-1) are respectively and rotatably provided with a sand box moving wheel (8-2), the sand box (8) to be compacted is arranged above the sand box running track (9), and the sand box moving wheels (8-2) are respectively arranged on the sand box running track (9) below the sand box moving wheels; the sand box (8) to be vibrated moves back and forth along the sand box running track (9) through the sand box moving wheel (8-2);
a first supporting table (4-1), a second supporting table (4-2) and a third supporting table (4-3) which are consistent in height and size are sequentially arranged in the middle of the top surface of the vibrating table (4) along the running direction of the sand box, a first sand box shaft placing area (4-4) is arranged between the first supporting table (4-1) and the second supporting table (4-2), and a second sand box shaft placing area (4-5) is arranged between the second supporting table (4-2) and the third supporting table (4-3);
the three-dimensional compaction table further comprises at least two groups of clamping devices (10), wherein the two groups of clamping devices (10) are respectively and symmetrically arranged on two sides of the vibration table (4) in the width direction; the clamping device (10) comprises an air cylinder (10-1), an air cylinder fixing seat (10-2), a clamping block (10-3) and a control system, the air cylinder fixing seat (10-2) is fixedly installed on the side wall of the width direction of the compaction table (4), the air cylinder (10-1) is horizontally installed on the air cylinder fixing seat (10-2), the axis of the air cylinder (10-1) is parallel to the width direction of the sand box (8) to be compacted, a piston rod of the air cylinder (10-1) faces the inner side of the three-dimensional compaction table, the clamping block (10-3) is fixed at the head of the piston rod of the air cylinder (10-1), and the air cylinder (10-1) and the vibrating motor (5) are respectively and electrically connected with the control system.
2. The three-dimensional plain bumper of a disappearance sand case of claim 1 characterized by: the cylinder fixing seat (10-2) comprises a cylinder supporting seat (10-2-1) and a cylinder thrust block (10-2-2), the cylinder supporting seat (10-2-1) is arranged on the extension plates (4-6) at two sides of the width direction of the jolt ramming table (4), rib plates (4-7) are arranged between the extension plates (4-6) and the side wall of the jolt ramming table (4), the cylinder thrust block (10-2-2) is arranged on the outer side of the top surface of the cylinder support seat (10-2-1), the tail end of the cylinder (10-1) is fixedly connected with the cylinder thrust block (10-2-2), and the front end of the cylinder body of the cylinder (10-1) is fixedly connected with the cylinder supporting seat (10-2-1) through an angle steel (4-8).
3. The three-dimensional plain bumper of a disappearance sand case of claim 2, characterized by: the top surface of the cylinder supporting seat (10-2-1) is provided with a protective cover (10-4), and the cylinder (10-1) is arranged in the protective cover (10-4).
4. The three-dimensional plain bumper of a disappearance sand case of claim 1 characterized by: the four groups of clamping devices (10) are arranged, and two groups of clamping devices (10) are respectively and uniformly distributed on two sides of the vibration table (4) in the width direction.
5. The three-dimensional plain bumper of a disappearance sand case of claim 1 characterized by: the width dimension of the jolt ramming table (4) is larger than the width dimension of the sand box (8) to be jolt rammed, the length dimension of the sand box shaft (8-1) is larger than the width dimensions of the first supporting table (4-1), the second supporting table (4-2) and the third supporting table (4-3), and the width dimensions of the first supporting table (4-1), the second supporting table (4-2) and the third supporting table (4-3) are the same.
6. The three-dimensional plain bumper of a disappearance sand case of claim 1 characterized by: in the initial state of the three-dimensional compaction table, the top surface of the first support table (4-1) is lower than the sand box shaft (8-1), and the piston rod of the cylinder (10-1) is higher than the top surface of the first support table (4-1); and when the three-dimensional compaction table is in a clamping state, the top surfaces of the first supporting table (4-1), the second supporting table (4-2) and the third supporting table (4-3) are superposed with the bottom surface of the sand box (8) to be compacted, and the clamping blocks (10-3) at the end parts of the piston rods of the cylinders (10-1) clamp the side walls of the two sides of the sand box (8) to be compacted.
7. The three-dimensional plain bumper of a disappearance sand case of claim 1 characterized by: and a buffering silica gel sleeve is arranged outside the clamping block (10-3).
8. The three-dimensional plain bumper of a disappearance sand case of claim 1 characterized by: the air spring is characterized in that a guide sleeve (3-1) is vertically arranged in the air spring (3), the guide sleeve (3-1) is sleeved on the upper portion of the support column (2), the top surface of the guide sleeve (3-1) is fixed on the top surface of the air spring (3), and the guide sleeve (3-1) slides up and down along the support column (2) under the deformation action of the air spring (3).
9. The three-dimensional plain bumper of a disappearance sand case of claim 1 characterized by: the air pipe (7) is provided with an electromagnetic valve (7-1), and the electromagnetic valve (7-1) is electrically connected with a control system.
10. The three-dimensional plain bumper of a disappearance sand case of claim 1 characterized by: and a sand box running track (9) on the front side of the three-dimensional compaction table is provided with a proximity switch (9-1) and a warning lamp (9-2), and the proximity switch (9-1) and the warning lamp (9-2) are electrically connected with a control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121133215.2U CN214920291U (en) | 2021-05-25 | 2021-05-25 | Three-dimensional plain bumper of lost foam sand case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121133215.2U CN214920291U (en) | 2021-05-25 | 2021-05-25 | Three-dimensional plain bumper of lost foam sand case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214920291U true CN214920291U (en) | 2021-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121133215.2U Active CN214920291U (en) | 2021-05-25 | 2021-05-25 | Three-dimensional plain bumper of lost foam sand case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214920291U (en) |
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2021
- 2021-05-25 CN CN202121133215.2U patent/CN214920291U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A three-dimensional vibrating table for EPC sand box Effective date of registration: 20220628 Granted publication date: 20211130 Pledgee: Industrial Bank Co.,Ltd. Jincheng Branch Pledgor: JINCHENG JINGONG CASTING CO.,LTD. Registration number: Y2022140000032 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230530 Granted publication date: 20211130 Pledgee: Industrial Bank Co.,Ltd. Jincheng Branch Pledgor: JINCHENG JINGONG CASTING CO.,LTD. Registration number: Y2022140000032 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A three-dimensional vibration table for lost foam sand box Effective date of registration: 20230530 Granted publication date: 20211130 Pledgee: Industrial Bank Co.,Ltd. Jincheng Branch Pledgor: JINCHENG JINGONG CASTING CO.,LTD. Registration number: Y2023140000026 |