CN115771220B - Trimming device for injection molding accessories - Google Patents
Trimming device for injection molding accessories Download PDFInfo
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- CN115771220B CN115771220B CN202310101185.4A CN202310101185A CN115771220B CN 115771220 B CN115771220 B CN 115771220B CN 202310101185 A CN202310101185 A CN 202310101185A CN 115771220 B CN115771220 B CN 115771220B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
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Abstract
The invention relates to the technical field of plastic molding post-treatment, in particular to an injection molding accessory trimming device; comprising the following steps: a top base; a base; the base is positioned right below the top seat; the top seat is connected with the base through a supporting rod; an upper electric push rod; the upper electric push rod is fixedly connected to the lower end face of the top seat; an output shaft of the upper electric push rod is fixedly connected with an upper pressure plate; a lower electric push rod; the lower electric push rod is fixedly connected to the upper end face of the base; the output shaft of the lower electric push rod is fixedly connected with a lower pressure plate; a ring sleeve; the ring sleeve is positioned between the top seat and the base; the upper part and the lower part of the ring sleeve are both openings; the upper pressure plate and the lower pressure plate are positioned at the inner side of the annular sleeve after moving; trimming the bag; according to the invention, the deformable trimming bag is used for scraping the outer edge of the injection molding accessory, so that the edge of the injection molding accessory is trimmed, and meanwhile, the trimming can be performed on the injection molding accessory with different specifications and shapes, so that the universality is higher.
Description
Technical Field
The invention relates to the technical field of plastic molding post-treatment, in particular to an injection molding accessory trimming device.
Background
Injection molding, also called injection molding, is a molding method of injection and molding, in which a plastic material which is completely melted by stirring with a screw at a certain temperature is injected into a cavity at high pressure, and after cooling and solidification, a molded product is obtained, and is one of the important part processing methods in the manufacturing industry.
After the injection molding part is molded, the edge of the injection molding part is provided with some flash and burrs, so that the edge of the injection molding part needs to be trimmed by some post-processing equipment of the injection molding part, such as trimming equipment, but most trimming equipment in the prior art can only trim parts with the same shape, so that when other injection molding parts are trimmed, the trimming of the injection molding part can only be completed by remanufacturing a mold, and the problem of poor universality of the conventional trimming device of the injection molding part occurs.
In view of the above, the present invention provides an trimming device for injection molding accessories, which solves the above technical problems.
Disclosure of Invention
In order to make up the defects of the prior art, the invention provides an injection molding accessory trimming device, the outer edge of the injection molding accessory is scratched through the deformable trimming bag, so that the edge of the injection molding accessory is trimmed, and meanwhile, the trimming device can trim injection molding accessories with different specifications and shapes, and has higher universality.
The technical scheme adopted for solving the technical problems is as follows: the invention relates to an injection molding accessory trimming device, which comprises:
a top base;
a base; the base is positioned right below the top seat; the top seat is connected with the base through a supporting rod;
an upper electric push rod; the upper electric push rod is fixedly connected to the lower end face of the top seat; an output shaft of the upper electric push rod is fixedly connected with an upper pressure plate;
a lower electric push rod; the lower electric push rod is fixedly connected to the upper end face of the base; the output shaft of the lower electric push rod is fixedly connected with a lower pressure plate;
a ring sleeve; the ring sleeve is positioned between the top seat and the base; the upper part and the lower part of the ring sleeve are both openings; the upper pressure plate and the lower pressure plate are positioned at the inner side of the annular sleeve after moving;
trimming the bag; the trimming bag is annular; the trimming bag is fixedly connected to the inner side of the annular sleeve; the upper pressing plate and the lower pressing plate are positioned at the inner side of the trimming bag after moving; trimming particles are embedded on the inner side surface of the trimming bag; the edging particles may be one or more of grinding stones, steel wires, blades, etc.;
an air pump; the air pump is fixedly connected to the outer side of the annular sleeve; the air pump is communicated with the inner side of the annular sleeve through an air hole;
a controller; the controller is used for controlling the automatic operation of the trimming device.
Preferably, the upper end and the lower end of the ring sleeve are provided with limiting plates; an annular groove is formed in one surface, close to the limiting discs, of each limiting disc; the end part of the ring sleeve is clamped into the corresponding annular groove; the groove wall of the annular groove close to the center is positioned at the inner side of the annular sleeve; the groove wall of the annular groove far away from the center is positioned at the outer side of the annular sleeve; the distance between the bottoms of the two annular grooves is equal to the height of the annular sleeve.
Preferably, elastic strips are uniformly arranged on the inner side of the trimming bag and positioned at the lower port of the ring sleeve; the edges of the elastic strips overlap each other; one of the elastic strips is relatively long.
Preferably, rectangular grooves are uniformly formed in the outer side walls of the upper pressing plate and the lower pressing plate; the rectangular groove is connected with a rectangular strip in a sliding manner; the bottom of the rectangular groove is connected with the rectangular strip through a spring; the end part of the rectangular strip, which is far away from the spring, is fixedly connected with a supporting block; the distance between the upper and lower supporting blocks is equal to the distance between the upper pressure plate and the lower pressure plate.
Preferably, the bag thickness of the middle part of the trimming bag is larger than that of the end part of the trimming bag; a gap is reserved between the supporting block and one end, away from the corresponding spring, of the rectangular strip.
Preferably, the rectangular strip is in sliding sealing connection with the rectangular groove; an air passage is formed in the rectangular strip; one end of the air passage is communicated with the inner side of the corresponding rectangular groove, and the other end of the air passage is communicated with the end part of the rectangular strip.
Preferably, the lower end of the ring sleeve is rotationally connected with the ring disc; the annular disc is fixedly connected with the supporting rod; an output shaft of the upper electric push rod is fixedly connected with an internal thread cylinder; the lower end of the internal thread cylinder is provided with an opening; the outer wall of the ring sleeve is provided with external threads; the internal thread cylinder is in threaded fit with the outer wall of the annular sleeve.
Preferably, the bottom of the internal thread cylinder is provided with a unidirectional air inlet hole in a penetrating way; the unidirectional air inlet hole is communicated with the inner bottom of the internal thread cylinder; a one-way valve is arranged in the one-way air inlet.
The beneficial effects of the invention are as follows:
1. according to the invention, the deformable trimming bag is used for scraping the outer edge of the injection molding accessory, so that the edge of the injection molding accessory is trimmed, and meanwhile, the trimming can be performed on the injection molding accessory with different specifications and shapes, so that the universality is higher.
2. According to the invention, the trimming position can be adjusted according to the appearance of the injection molding accessory through the annular sleeve and the trimming bag, the extrusion force of the trimming bag on the injection molding accessory is different due to different trimming positions, and the extrusion force of the trimming bag on the edge of the injection molding accessory tends to be the same due to the adjustment of the position of the trimming bag, so that the edge trimming degree of the injection molding accessory tends to be the same.
3. According to the invention, after the injection molding accessory is released from being clamped by the upper pressure plate and the lower pressure plate, the elastic strip can push away the injection molding accessory from between the upper pressure plate and the lower pressure plate, so that the aim of automatically unloading a workpiece is fulfilled, and more importantly, the elastic strip can push away impurities together in the pushing process, so that the impurity residue on the inner side of the trimming bag is reduced.
Drawings
The invention will be further described with reference to the drawings and embodiments.
FIG. 1 is a perspective view of one embodiment of the present invention;
FIG. 2 is a cross-sectional view of FIG. 1;
FIG. 3 is an enlarged view at A in FIG. 2;
FIG. 4 is a perspective view of another embodiment of the present invention;
fig. 5 is a position structure diagram of a rectangular bar and a rectangular groove in the present invention.
In the figure: the upper pressing plate 3, the rectangular groove 31, the rectangular strip 32, the air passage 321, the spring 33, the supporting block 34, the lower pressing plate 4, the annular sleeve 5, the air pump 51, the air hole 52, the trimming bag 6, the elastic strip 61, the limiting plate 7, the annular groove 71 and the annular plate 8 are arranged on the top seat 1, the supporting rod 11, the upper electric push rod 12, the internal thread cylinder 13, the unidirectional air inlet hole 131, the base 2, the lower electric push rod 21, the upper pressing plate 3 and the rectangular groove 31.
Description of the embodiments
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
As shown in fig. 1 to 5, an trimming device for an injection molding accessory according to the present invention includes:
a top base 1;
a base 2; the base 2 is positioned right below the top seat 1; the top seat 1 is connected with the base 2 through a supporting rod 11;
an upper electric push rod 12; the upper electric push rod 12 is fixedly connected to the lower end face of the top seat 1; an output shaft of the upper electric push rod 12 is fixedly connected with an upper pressure plate 3;
a lower electric push rod 21; the lower electric push rod 21 is fixedly connected to the upper end face of the base 2; the output shaft of the lower electric push rod 21 is fixedly connected with a lower pressure plate 4;
a loop 5; the ring sleeve 5 is positioned between the top seat 1 and the base 2; the upper part and the lower part of the ring sleeve 5 are both openings; the upper pressing plate 3 and the lower pressing plate 4 are positioned at the inner side of the annular sleeve 5 after moving;
a trimming bag 6; the trimming bag 6 is annular; the trimming bag 6 is fixedly connected to the inner side of the annular sleeve 5; the upper pressing plate 3 and the lower pressing plate 4 are positioned at the inner side of the trimming bag 6 after moving; trimming particles are embedded on the inner side surface of the trimming bag 6; the edging particles may be one or more of grinding stones, steel wires, blades, etc.;
an air pump 51; the air pump 51 is fixedly connected to the outer side of the annular sleeve 5; the air pump 51 is communicated with the inner side of the annular sleeve 5 through an air hole 52;
a controller; the controller is used for controlling the automatic operation of the trimming device;
during operation, after the injection molding piece is molded, the edge of the injection molding piece is provided with some flash and burrs, so that the edge of the injection molding piece needs to be trimmed through post-processing equipment of some injection molding pieces, such as trimming equipment, but most trimming equipment in the prior art can only trim parts with the same shape, so that when other injection molding pieces are trimmed, only the die can be manufactured again to finish trimming of the injection molding piece, and the problem of poor universality of the conventional trimming device for the injection molding piece is caused;
therefore, the upper electric push rod 12 and the lower electric push rod 21 are controlled by a controller to move firstly, so that the upper electric push rod 12 is shortened and the lower electric push rod 21 is lengthened, the upper electric push rod 12 drives the upper pressure plate 3 to move upwards, the lower electric push rod 21 drives the lower pressure plate 4 to move upwards, the upper pressure plate 3 and the lower pressure plate 4 move to the upper part of the annular sleeve 5 after passing through the inner side of the trimming bag 6, namely the inner side of the annular sleeve 5, so that the lower pressure plate 4 and the upper pressure plate 3 are exposed, then, an injection molding accessory is placed between the opened upper pressure plate 3 and the lower pressure plate 4 by the operator, so that the injection molding accessory falls on the upper end of the lower pressure plate 4, then, the upper electric push rod 12 is controlled by the controller to elongate, so that the upper electric push rod 12 drives the upper pressure plate 3 to be close to the injection molding accessory, the injection molding accessory is pressed by the upper pressure plate 3 and the lower pressure plate 4, the controller then controls the upper electric push rod 12 and the lower electric push rod 21 to synchronously move, so that the injection molding accessory is ensured to be clamped, namely, the upper pressure plate 3 and the lower pressure plate 4 can drive the injection molding accessory to move downwards and move to the inner side of the trimming bag 6, then the controller controls the air pump 51 to work, the air pump 51 can charge the outside air into the inner side of the annular sleeve 5 along the air hole 52, so that the trimming bag 6 bulges, the inner side of the trimming bag 6 contacts with the edge of the injection molding accessory after the bulge, then the air pump 51 stops working, the air in the trimming bag 6 cannot leak due to the valve in the air pump 51, then the upper pressure plate 3 and the lower pressure plate 4 are controlled by a worker to drive the injection molding accessory to move downwards or upwards on the inner side of the trimming bag 6, so that burrs on the edge of the injection molding accessory are scraped through trimming particles on the inner wall of the trimming bag 6 in the scraping process of the inner wall of the injection molding accessory and the trimming bag 6, the deburring force of the deburring bag 6 is controlled by filling air quantity between the deburring bag 6 and the annular sleeve 5 through the air pump 51, so that the space between the deburring bag 6 and the annular sleeve 5 is called as a bag sleeve cavity, the larger the filled air quantity of the bag sleeve cavity is, the larger the extrusion force of the deburring bag 6 on the edge of the injection molding accessory is, the larger the friction force between the deburring bag 6 and the injection molding accessory is, namely the higher the deburring effect and the degree is, the deburring bag 6 is at one side close to the center of the annular sleeve 5, namely the inner wall, in the application, the deburring bag 6 has a certain elastic deformation capacity, so that the inner wall of the deburring bag 6 can be fully contacted with the edge of the injection molding accessory even if the appearance of the injection molding accessory is irregular, the edge of the injection molding accessory is fully trimmed, the space can be suitable for injection molding accessories with different specifications and different shapes, the deburring bag 6 is driven by an upper pressure plate 3 and a lower pressure plate 4 to the inner wall of the injection molding accessory, the lower pressure plate 6 is scraped by the deburring bag, the lower pressure plate 6 is driven by the upper pressure plate 3 and the lower pressure plate 6, the lower pressure plate is moved from the annular sleeve 5 to the inner side 3, namely the inner wall is removed from the annular sleeve 5, and then the upper and the lower pressure plate 4 is removed by the personnel to the injection molding accessory is removed from the annular sleeve 4, and the upper end is removed by the lower pressure plate 4, and the upper end of the injection molding accessory is finished;
according to the invention, the deformable trimming bag 6 is used for scraping the outer edge of the injection molding accessory, so that the edge of the injection molding accessory is trimmed, and meanwhile, the trimming can be performed on the injection molding accessory with different specifications and shapes, so that the universality is higher.
As an implementation mode of the invention, the upper end and the lower end of the ring sleeve 5 are provided with limiting discs 7; an annular groove 71 is arranged on the surface, close to the limiting discs 7, of each limiting disc; the end of the ring sleeve 5 is clamped into the corresponding annular groove 71; the groove wall of the annular groove 71 close to the center is positioned on the inner side of the annular sleeve 5; the groove wall of the annular groove 71, which is far away from the center, is positioned outside the annular sleeve 5; the distance between the bottoms of the two annular grooves 71 is equal to the height of the annular sleeve 5;
during operation, the irregular injection molding accessories are clamped by the upper pressure plate 3 and the lower pressure plate 4 and move to the inner side of the trimming bag 6, the injection molding accessories can squeeze the surrounding trimming bag 6, the squeezing force is transmitted to the annular sleeve 5 after the trimming bag 6 is squeezed, the annular sleeve 5 can move between the two limiting plates 7 after being squeezed, the central positions of the annular sleeve 5 and the trimming bag 6 are adjusted, the annular sleeve 5 is not squeezed away from between the two limiting plates 7 after being squeezed due to the fact that the end portions of the annular sleeve 5 are clamped into the corresponding annular grooves 71, meanwhile, the annular sleeve 5 and the trimming bag 6 can adjust trimming positions according to the appearance of the injection molding accessories, the squeezing force of the trimming bag 6 on the injection molding accessories is different, and the squeezing force of the trimming bag 6 on the edge of the injection molding accessories tends to be the same through adjusting the positions of the trimming bag 6, and the trimming degrees of the edge of the injection molding accessories tend to be the same.
As an embodiment of the present invention, elastic strips 61 are uniformly arranged on the inner side of the trimming bag 6 and positioned at the lower port of the ring sleeve 5; the edges of the elastic strips 61 overlap each other; the length of one of the elastic strips 61 is relatively long;
when the device works, after an injection molding accessory is clamped by the upper pressure plate 3 and the lower pressure plate 4 and moves along the inner wall of the trimming bag 6, impurities are generated on the inner side of the trimming bag 6 after the injection molding accessory is trimmed, along with the downward movement of the injection molding accessory, the edge of the injection molding accessory only contacts one elastic strip 61, and other elastic strips 61 relatively move to the upper side of the injection molding accessory, so that the impurities move into a gap formed between one elastic strip 61 and the other elastic strips 61 under the action of gravity, then the controller controls the lower electric push rod 21 to drive the lower pressure plate 4 to move downward, so that the injection molding accessory is released from the clamping of the upper pressure plate 3 and the lower pressure plate 4, the elastic strips 61 push the injection molding accessory away from between the upper pressure plate 3 and the lower pressure plate 4, the aim of automatically unloading a workpiece is fulfilled, more importantly, the elastic strips 61 push the impurities together in the pushing process, and therefore impurity residues on the inner side of the trimming bag 6 are reduced; in this embodiment, the edges of the elastic strips 61 overlap each other, so that after the trimming bag 6 is inflated or contracted, the elastic strips 61 can still form a ring shape, and the impurities generated inside the trimming bag 6 are blocked, so that the impurities are prevented from moving into the annular groove 71 beyond the elastic strips 61, the cleanness in the annular groove 71 is ensured, and the stability of the movement of the ring sleeve 5 in the annular groove 71 is further ensured.
As an embodiment of the present invention, the outer side walls of the upper platen 3 and the lower platen 4 are uniformly provided with rectangular grooves 31; the rectangular groove 31 is slidably connected with a rectangular strip 32; the bottom of the rectangular groove 31 is connected with the rectangular strip 32 through a spring 33; the end of the rectangular strip 32 far away from the spring 33 is fixedly connected with a supporting block 34; the distance between the upper and lower support blocks 34 is equal to the distance between the upper platen 3 and the lower platen 4;
when the device works, the spring 33 always gives a pushing force to the rectangular strip 32 far away from the center of the ring sleeve 5, so that the rectangular strip 32 slides along the corresponding rectangular groove 31 under the action of the spring 33, the rectangular strip 32 extends out of the corresponding rectangular groove 31, and the clamping range of the upper pressure plate 3 and the lower pressure plate 4 to injection molding accessories is enlarged; in the process that the upper pressing plate 3 and the lower pressing plate 4 drive injection molding accessories to enter the inner side of the trimming bag 6, the trimming bag 6 can extrude the corresponding rectangular strips 32, the rectangular strips 32 slide along the corresponding rectangular grooves 31 under the extrusion of the trimming bag 6, so that the ends of the rectangular strips 32 cannot exceed the edges of the injection molding accessories, the injection molding accessories are ensured to move inside the trimming bag 6, the upper pressing plate 3 and the lower pressing plate 4 drive the corresponding supporting blocks 34 to support the injection molding accessories in the process that the injection molding accessories move inside the trimming bag 6, and deformation of the injection molding accessories in the trimming process is avoided, so that the integrity of the injection molding accessories after trimming is ensured.
As one embodiment of the present invention, the thickness of the middle part of the trimming bag 6 is greater than that of the end part of the trimming bag 6; a gap is reserved between the supporting block 34 and one end of the rectangular strip 32 away from the corresponding spring 33;
when the air pump 51 is in operation, after the air pump 51 fills the outside air into the inner side of the bag sleeve cavity along the air hole 52, the trimming bag 6 is bulged, because the thickness of the middle part and the end part of the trimming bag 6 is different, the bulge degree of the middle part and the end part of the trimming bag 6 is different, namely, the bulge degree of the end part of the trimming bag 6 is larger than that of the middle part, so that the upper pressure plate 3 and the lower pressure plate 4 drive the injection molding accessory to move upwards or downwards from the middle part, the trimming bag 6 can better trim the upper outer edge and the lower outer edge of the injection molding accessory, and meanwhile, in order to avoid the edge trimming effect of the injection molding accessory blocked by the supporting block 34, a gap is reserved between the supporting block 34 and one end of the rectangular strip 32, so that the trimming bag 6 has a certain distance between the supporting block 34 and the edge of the injection molding accessory after the rectangular strip 32 is extruded, and the supporting block 34 is ensured to have a better supporting effect, and the edge treatment of the injection molding accessory is not influenced.
As one embodiment of the present invention, the rectangular bar 32 is in sliding sealing connection with the rectangular groove 31; an air passage 321 is arranged inside the rectangular strip 32; one end of the air passage 321 is communicated with the inner side of the corresponding rectangular groove 31, and the other end of the air passage is communicated with the end part of the rectangular strip 32;
during operation, as the diameter of the inner wall of the trimming bag 6 is changed, the upper pressing plate 3 and the lower pressing plate 4 drive the injection molding accessory to move on the inner wall of the trimming bag 6, the trimming bag 6 can squeeze the rectangular strip 32, the spring 33 always gives the rectangular strip 32 a pushing force away from the bottom of the rectangular groove 31, so the rectangular strip 32 can move back and forth along the corresponding rectangular groove 31 along with the up-and-down movement of the injection molding accessory, the gas in the rectangular groove 31 can be discharged along the air passage 321 during the movement of the rectangular strip 32 towards the bottom of the rectangular groove 31, the gas discharged from the air passage 321 can impact the inner wall of the trimming bag 6, so that the inner wall of the trimming bag 6 through which the injection molding accessory passes is cleaned in advance, the impurity is reduced to adhere to the inner wall of the trimming bag 6, and the scraping effect, namely the trimming effect of the inner wall of the trimming bag 6 on the injection molding accessory is ensured.
As an embodiment of the present invention, the lower end of the ring sleeve 5 is rotatably connected with the ring disk 8; the annular disc 8 is fixedly connected with the supporting rod 11; an output shaft of the upper electric push rod 12 is fixedly connected with an internal thread cylinder 13; the lower end of the internal thread cylinder 13 is provided with an opening; the outer wall of the ring sleeve 5 is provided with external threads; the internal thread cylinder 13 is in threaded fit with the outer wall of the annular sleeve 5;
when the electric push rod is in operation, in the process that the upper pressure plate 3 and the lower pressure plate 4 drive the injection molding accessory to move into the inner side of the trimming bag 6 and lean against the lower part, the internal thread cylinder 13 is sleeved on the outer side of the annular sleeve 5, so that the internal thread cylinder 13 is in threaded transmission connection with the annular sleeve 5, the internal thread cylinder 13 drives the rotating sleeve to rotate along with the continuous downward movement of the output shaft of the electric push rod, the rotating sleeve rotates to drive the trimming bag 6 fixedly connected inside the rotating sleeve, the trimming bag 6 rotates to generate relative rotation with the injection molding accessory, so that the injection molding accessory and the inner wall of the trimming bag 6 move up and down and simultaneously rotate and displace, the trimming path of the inner wall of the trimming bag 6 to the edge of the injection molding accessory is prolonged, the edge of the injection molding accessory is trimmed more thoroughly, and simultaneously the internal thread cylinder 13 moves downwards and simultaneously presses gas at the inner side of the trimming bag 6, so that the gas at the inner side of the trimming bag 6 is extruded down along the lower port of the annular sleeve 5, and impurities on the inner wall of the trimming bag 6 are matched with the self gravity of the impurities and then moved out of the lower port of the annular sleeve 5, so that the inner side of the trimming bag 6 is cleaned; the trimming bag 6 rotates under the driving of the annular sleeve 5, the trimming bag 6 can generate folds under the driving of the annular sleeve 5, and the edge trimming effect of the folded trimming bag 6 on the injection molding accessory is higher; the air pump 51 is arranged at the lower part of the ring sleeve 5, and the internal thread cylinder 13 only moves at the upper part of the ring sleeve 5, so that interference condition can not occur.
As an embodiment of the present invention, the bottom of the internal thread cylinder 13 is provided with a unidirectional air inlet 131; the one-way air inlet hole 131 is communicated with the inner bottom of the internal thread cylinder 13; a one-way valve is arranged in the one-way air inlet 131;
during operation, in the process of screw transmission between the internal thread cylinder 13 and the annular sleeve 5, the internal thread cylinder 13 can extrude gas at the inner side of the trimming bag 6, and as the one-way air inlet 131 is internally provided with the one-way valve, the gas at the inner side of the trimming bag 6 can be discharged along the lower port of the annular sleeve 5 to realize the carrying out of impurities at the inner side of the trimming bag 6, and in the process of upward movement of the internal thread cylinder 13, the one-way air inlet 131 at the bottom of the internal thread cylinder 13 is opened, the external gas can enter the inner side of the internal thread cylinder 13 along the one-way air inlet 131 and supplement the gas at the inner side of the trimming bag 6, so that the gas at the inner side of the trimming bag 6 can only move from top to bottom, and the cleaning effect of impurities inside the trimming bag 6 is improved; the embodiment can meet the requirement that the internal thread cylinder 13 moves up and down on the outer wall of the annular sleeve 5.
The specific working procedure is as follows:
the upper electric push rod 12 and the lower electric push rod 21 are controlled by a controller to move firstly, so that the upper electric push rod 12 is shortened and the lower electric push rod 21 is lengthened, the upper electric push rod 12 can drive the upper pressure plate 3 to move upwards, the lower electric push rod 21 can drive the lower pressure plate 4 to move upwards, the upper pressure plate 3 and the lower pressure plate 4 move to the upper part of the annular sleeve 5 after passing through the inner side of the trimming bag 6, namely the inner side of the annular sleeve 5, so that the lower pressure plate 4 and the upper pressure plate 3 are exposed, then, an injection molding accessory is placed between the opened upper pressure plate 3 and the lower pressure plate 4 by the operator, so that the injection molding accessory falls on the upper end of the lower pressure plate 4, then, the upper electric push rod 12 is controlled by the controller to extend, so that the upper electric push rod 12 drives the upper pressure plate 3 to be close to the injection molding accessory, so that the injection molding accessory is compressed by the upper pressure plate 3 and the lower pressure plate 4, the controller then controls the upper electric push rod 12 and the lower electric push rod 21 to synchronously move, so that the injection molding accessory is ensured to be clamped, namely, the upper pressure plate 3 and the lower pressure plate 4 can drive the injection molding accessory to move downwards and move to the inner side of the trimming bag 6, then the controller controls the air pump 51 to work, the air pump 51 can charge the outside air into the inner side of the annular sleeve 5 along the air hole 52, so that the trimming bag 6 bulges, the inner side of the trimming bag 6 contacts with the edge of the injection molding accessory after the bulge, then the air pump 51 stops working, the air in the trimming bag 6 cannot leak due to the valve in the air pump 51, then the upper pressure plate 3 and the lower pressure plate 4 are controlled by a worker to drive the injection molding accessory to move downwards or upwards on the inner side of the trimming bag 6, so that burrs on the edge of the injection molding accessory are scraped through trimming particles on the inner wall of the trimming bag 6 in the scraping process of the inner wall of the injection molding accessory and the trimming bag 6, the deburring force of the deburring bag 6 is controlled by filling air quantity between the deburring bag 6 and the annular sleeve 5 through the air pump 51, so that the space between the deburring bag 6 and the annular sleeve 5 is called as a bag sleeve cavity, the larger the filled air quantity of the bag sleeve cavity is, the larger the extrusion force of the deburring bag 6 on the edge of the injection molding accessory is, the larger the friction force between the deburring bag 6 and the injection molding accessory is, namely the higher the deburring effect and the degree is, the deburring bag 6 is at one side close to the center of the annular sleeve 5, namely the inner wall, in the application, the deburring bag 6 has a certain elastic deformation capacity, so that the inner wall of the deburring bag 6 can be fully contacted with the edge of the injection molding accessory even if the appearance of the injection molding accessory is irregular, the edge of the injection molding accessory is fully trimmed, the space can be suitable for injection molding accessories with different specifications and different shapes, the deburring bag 6 is driven by an upper pressure plate 3 and a lower pressure plate 4 to the inner wall of the injection molding accessory, the lower pressure plate 6 is scraped by the deburring bag, the inner wall of the pressure plate 6 is driven by the upper pressure plate 3 and the lower pressure plate 6, the lower pressure plate 6 is moved from the annular sleeve 5 to the inner side 3 and then the annular sleeve 5 is removed by the personnel, and the personnel is removed from the upper end opening of the injection molding accessory is removed from the annular sleeve 4, and the injection molding accessory is finished;
in the process that the upper pressure plate 3 and the lower pressure plate 4 clamp and move irregular injection molding accessories to the inner side of the trimming bag 6, the injection molding accessories squeeze the surrounding trimming bag 6, the extrusion force is transmitted to the annular sleeve 5 after the trimming bag 6 is squeezed, so that the annular sleeve 5 moves between the two limiting plates 7 after being squeezed, the central positions of the annular sleeve 5 and the trimming bag 6 are adjusted, and as the end parts of the annular sleeve 5 are clamped into corresponding annular grooves 71, the annular sleeve 5 cannot be squeezed away from between the two limiting plates 7 after being squeezed, and meanwhile, the annular sleeve 5 and the trimming bag 6 can adjust trimming positions according to the appearance of the injection molding accessories; after the injection molding accessory is clamped by the upper pressure plate 3 and the lower pressure plate 4 and moves along the inner wall of the trimming bag 6, impurities are generated on the inner side of the trimming bag 6 after trimming the injection molding accessory, along with the downward movement of the injection molding accessory, the edge of the injection molding accessory only contacts one elastic strip 61, and other elastic strips 61 relatively move to the upper side of the injection molding accessory, so that the impurities move into a gap formed between one elastic strip 61 and the other elastic strips 61 under the action of gravity, then the controller controls the lower electric push rod 21 to drive the lower pressure plate 4 to move downward, so that the injection molding accessory is released from the clamping of the upper pressure plate 3 and the lower pressure plate 4, the elastic strips 61 push the injection molding accessory away from the position between the upper pressure plate 3 and the lower pressure plate 4, the aim of automatically unloading the workpiece is fulfilled, more importantly, the elastic strips 61 push the impurities together in the pushing process, and the spring 33 always gives a pushing force to the rectangular strip 32 to the center away from the ring sleeve 5, so that the rectangular strip 32 slides along the corresponding rectangular groove 31 under the action of the spring 33, and the rectangular strip 32 stretches out of the corresponding rectangular groove 31, and the clamping range of the injection molding accessory is widened by the upper pressure plate 3 and the lower pressure plate 4; in the process that the upper pressure plate 3 and the lower pressure plate 4 drive the injection molding accessories to enter the inner side of the trimming bag 6, the trimming bag 6 can extrude the corresponding rectangular strips 32, the rectangular strips 32 slide along the corresponding rectangular grooves 31 under the extrusion of the trimming bag 6, so that the end parts of the rectangular strips 32 can not exceed the edges of the injection molding accessories, the injection molding accessories can be ensured to move inside the trimming bag 6, the rectangular strips 32 on the upper pressure plate 3 and the lower pressure plate 4 drive the corresponding supporting blocks 34 to support the injection molding accessories in the process that the injection molding accessories are moved inside the trimming bag 6 by the upper pressure plate 3 and the lower pressure plate 4, after the air pump 51 fills external air into the inner side of the bag sleeve cavity along the air holes 52, the trimming bag 6 is bulged, because the thicknesses of the middle part and the end parts of the trimming bag 6 are different, the middle part and the end part of the trimming bag 6 are different in swelling degree, namely, the swelling degree of the end part of the trimming bag 6 is larger than that of the middle part, the upper pressure plate 3 and the lower pressure plate 4 drive the injection molding accessory to move on the inner wall of the trimming bag 6, the trimming bag 6 can squeeze the rectangular strip 32, the spring 33 always gives the rectangular strip 32 a pushing force away from the bottom of the rectangular groove 31, so that the rectangular strip 32 moves back and forth along the corresponding rectangular groove 31 along with the injection molding accessory in the up-and-down movement process, the gas in the rectangular groove 31 is discharged along the air passage 321, and the gas discharged by the air passage 321 can impact the inner wall of the trimming bag 6, so that the inner wall of the trimming bag 6 through which the injection molding accessory passes is cleaned in advance;
in the process that the upper pressure plate 3 and the lower pressure plate 4 drive the injection molding accessory to move into the inner side of the trimming bag 6 and lean against the lower part, the internal thread cylinder 13 is sleeved on the outer side of the annular sleeve 5, so that the internal thread cylinder 13 is in threaded transmission connection with the annular sleeve 5, the internal thread cylinder 13 drives the rotating sleeve to rotate along with the continuous downward movement of the output shaft of the electric push rod, the rotating sleeve rotates to drive the trimming bag 6 fixedly connected with the inner side of the rotating sleeve to rotate, the trimming bag 6 rotates to generate relative rotation with the injection molding accessory, so that the injection molding accessory and the inner wall of the trimming bag 6 move up and down and simultaneously rotate and displace, the trimming path of the inner wall of the trimming bag 6 to the edge of the injection molding accessory is prolonged, the edge of the injection molding accessory is trimmed more thoroughly, and simultaneously the internal thread cylinder 13 moves down and simultaneously presses gas at the inner side of the trimming bag 6, so that the gas at the inner side of the trimming bag 6 is discharged along the lower port of the annular sleeve 5 under the extrusion of the internal thread cylinder 13, and impurities on the inner wall of the trimming bag 6 are matched with self gravity of the impurities and then move out of the lower port of the annular sleeve 5, so that the inner side impurities of the trimming bag 6 are cleaned; the trimming bag 6 rotates subsequently under the drive of the annular sleeve 5, the trimming bag 6 can generate folds under the drive of the annular sleeve 5, in the process of the threaded transmission of the internal thread cylinder 13 and the annular sleeve 5, the internal thread cylinder 13 can extrude gas at the inner side of the trimming bag 6, and the gas at the inner side of the trimming bag 6 can be discharged along the lower port of the annular sleeve 5 due to the one-way air inlet 131, so that impurities at the inner side of the trimming bag 6 are carried out, in the process of the upward movement of the internal thread cylinder 13, the one-way air inlet 131 at the bottom of the internal thread cylinder 13 is opened, and external gas can enter the inner side of the internal thread cylinder 13 along the one-way air inlet 131 and supplement the gas at the inner side of the trimming bag 6.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in fig. 1, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the scope of the present invention, and furthermore, the terms "first", "second", "third", etc. are merely used for distinguishing the description, and should not be construed as indicating or implying relative importance.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. An injection molding accessory trimming device, comprising:
a top base (1);
a base (2); the base (2) is positioned right below the top seat (1); the top seat (1) is connected with the base (2) through a supporting rod (11);
an upper electric push rod (12); the upper electric push rod (12) is fixedly connected to the lower end face of the top seat (1); an output shaft of the upper electric push rod (12) is fixedly connected with an upper pressure plate (3);
a lower electric push rod (21); the lower electric push rod (21) is fixedly connected to the upper end face of the base (2); an output shaft of the lower electric push rod (21) is fixedly connected with a lower pressure plate (4);
a collar (5); the ring sleeve (5) is positioned between the top seat (1) and the base (2); the upper part and the lower part of the ring sleeve (5) are both openings; the upper pressure plate (3) and the lower pressure plate (4) are positioned at the inner side of the annular sleeve (5) after moving;
a trimming bag (6); the trimming bag (6) is annular; the trimming bag (6) is fixedly connected to the inner side of the ring sleeve (5); the upper pressing plate (3) and the lower pressing plate (4) are positioned at the inner side of the trimming bag (6) after moving; the inner side surface of the trimming bag (6) is embedded with trimming particles;
an air pump (51); the air pump (51) is fixedly connected to the outer side of the ring sleeve (5); the air pump (51) is communicated with the inner side of the ring sleeve (5) through an air hole (52);
a controller; the controller is used for controlling the automatic operation of the trimming device;
the upper end and the lower end of the ring sleeve (5) are respectively provided with a limiting disc (7); an annular groove (71) is arranged on one surface, close to the limiting discs (7); the end part of the ring sleeve (5) is clamped into the corresponding annular groove (71); the groove wall of the annular groove (71) close to the center is positioned at the inner side of the annular sleeve (5); the groove wall of the annular groove (71) far away from the center is positioned at the outer side of the annular sleeve (5);
elastic strips (61) are uniformly arranged at the inner side of the trimming bag (6) and positioned at the lower port of the annular sleeve (5); the edges of the elastic strips (61) overlap each other; one of the elastic strips (61) has a longer length than the other elastic strips (61).
2. The injection molding accessory trimming device of claim 1, wherein: rectangular grooves (31) are uniformly formed in the outer side walls of the upper pressing plate (3) and the lower pressing plate (4); the rectangular groove (31) is connected with a rectangular strip (32) in a sliding way; the bottom of the rectangular groove (31) is connected with the rectangular strip (32) through a spring (33); the end part of the rectangular strip (32) far away from the spring (33) is fixedly connected with a supporting block (34); the distance between the upper and lower supporting blocks (34) is equal to the distance between the upper pressure plate (3) and the lower pressure plate (4).
3. The injection molding accessory trimming device of claim 2, wherein: the bag thickness of the middle part of the trimming bag (6) is larger than that of the end part of the trimming bag (6); a gap is reserved between the supporting block (34) and one end, away from the corresponding spring (33), of the rectangular strip (32).
4. An injection molding accessory trimming apparatus as defined in claim 3, wherein: the rectangular strips (32) are in sliding sealing connection with the rectangular grooves (31); an air passage (321) is formed in the rectangular strip (32); one end of the air passage (321) is communicated with the inner side of the corresponding rectangular groove (31), and the other end of the air passage is communicated with the end part of the rectangular strip (32).
5. The injection molding accessory trimming device of claim 1, wherein: the lower end of the ring sleeve (5) is rotationally connected with a ring disc (8); the annular disc (8) is fixedly connected with the supporting rod (11); an output shaft of the upper electric push rod (12) is fixedly connected with an internal thread cylinder (13); the lower end of the internal thread cylinder (13) is provided with an opening; the outer wall of the ring sleeve (5) is provided with external threads; the internal thread cylinder (13) is in threaded fit with the outer wall of the ring sleeve (5).
6. The injection molding accessory trimming device of claim 5, wherein: the bottom of the internal thread cylinder (13) is provided with a one-way air inlet hole (131) in a penetrating way; a one-way valve is arranged in the one-way air inlet hole (131).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310101185.4A CN115771220B (en) | 2023-02-13 | 2023-02-13 | Trimming device for injection molding accessories |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310101185.4A CN115771220B (en) | 2023-02-13 | 2023-02-13 | Trimming device for injection molding accessories |
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| Publication Number | Publication Date |
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| CN115771220A CN115771220A (en) | 2023-03-10 |
| CN115771220B true CN115771220B (en) | 2023-04-28 |
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| CN202310101185.4A Active CN115771220B (en) | 2023-02-13 | 2023-02-13 | Trimming device for injection molding accessories |
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| CN116811087B (en) * | 2023-08-30 | 2023-11-28 | 福建泉州振跃工艺品有限公司 | Automatic trimming device for resin artwork production |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108188876A (en) * | 2017-12-28 | 2018-06-22 | 宁波高新区新柯保汽车科技有限公司 | Parts grinding device |
| CN207788504U (en) * | 2018-02-05 | 2018-08-31 | 临沂市鲁钰机械有限公司 | A kind of new-energy automobile drive axle inner cavity burr polishing device |
| CN208629122U (en) * | 2018-07-24 | 2019-03-22 | 厦门倍杰特科技股份公司 | A kind of cover board deflashing burr device |
| CN210160865U (en) * | 2019-06-24 | 2020-03-20 | 石庆芬 | High-efficient grinding device of machine part's port |
| CN210997934U (en) * | 2019-12-12 | 2020-07-14 | 宿迁市森泰木业有限公司 | Surface deburring device for plywood |
| CN212192489U (en) * | 2020-04-30 | 2020-12-22 | 大连天薇管业有限公司 | Plastic winding pipe trimming device |
| CN112059847A (en) * | 2020-09-01 | 2020-12-11 | 李明惠 | Post-treatment process for injection molding of automobile parts |
| CN112676675A (en) * | 2020-12-15 | 2021-04-20 | 苏州市跃宇精密机械有限公司 | Deburring device for aviation precision parts |
| CN112621449A (en) * | 2020-12-28 | 2021-04-09 | 南京利营池商贸有限公司 | Cylindrical casting pouring burr ring wall polishing equipment |
| CN113427698B (en) * | 2021-05-13 | 2023-07-07 | 佛山市南海莱诺家具有限公司 | Injection molding mold |
| CN215847408U (en) * | 2021-08-10 | 2022-02-18 | 嘉兴敏华汽车零部件有限公司 | Trimming device for automobile injection molded part |
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