Structure capable of controlling core pulling sequence of fixed die slide block during die opening and closing
Technical Field
The invention relates to the technical field of core pulling mechanisms, in particular to a structure capable of controlling core pulling sequence of a fixed die slide block when a die is opened and closed.
Background
The core pulling mechanism is a common mechanism in the die and is a structure for processing the fact that products cannot be demoulded in the die separation process, the core pulling mechanism mostly moves along with the upper die, positioning or guiding is achieved through guide blocks and the like, the core pulling precision is guaranteed, the die structure is further simplified, and the die space is reduced. The conventional core pulling mechanism has various structures such as forward core pulling, reverse core pulling and the like, and the mechanism for reverse core pulling occupies smaller space than the structure for forward core pulling, so that the limit on the use space of the die is less.
The prior art discloses an in-mold inclined core pulling mechanism, the application number of which is CN201420224246.2, and the in-mold inclined core pulling mechanism comprises a bottom plate and a T-shaped sliding seat fixed on the bottom plate, wherein a sliding core is arranged on the T-shaped sliding seat, the in-mold inclined core pulling mechanism further comprises a movable mold plate and a movable mold core, the movable mold core is fixedly arranged on the movable mold plate, an inclined inner side wall is arranged on the movable mold core, and an inclined outer side wall is arranged on the sliding core. Through movable mould board and bottom plate separation, inside wall and lateral wall mutually support for the slide core slides on T type slide, reaches the effect of loosing core. The sliding core of the structure does not displace in the vertical direction, and the movable core is separated from the sliding core by controlling the upward movement of the whole movable core, so that the core pulling effect is achieved. Because the weight of the movable mould core and other parts is large, the accuracy of each core pulling process is difficult to ensure when the movable mould core is controlled to move in the vertical direction, and meanwhile, the energy consumed when the movable mould core is controlled to move is high, so that the resource waste is caused.
Disclosure of Invention
Therefore, a structure capable of controlling the sequence of core pulling of the fixed mold slide block when the mold is opened and closed is needed, and the problems of high energy consumption and the like in the core pulling process are solved.
In order to achieve the above purpose, the invention provides a structure capable of controlling core pulling sequence of a fixed die slide block when a die is opened and closed, comprising an upper die, a lower die and an oil cylinder, wherein the upper die comprises an upper fixed plate, an upper male die, the slide block and a slide core, the lower die comprises a lower female die and a lower fixed plate, the upper fixed plate is provided with a mounting cavity extending along the vertical direction, the upper male die is fixedly arranged in the mounting cavity, the lower fixed plate is provided with a mounting groove, the lower female die is fixedly arranged in the mounting groove, the lower female die is matched with the upper male die, the slide block is positioned above the upper male die, the oil cylinder drives the slide block to reciprocate along the vertical direction, the bottom of the slide block is provided with a slide groove extending along the horizontal direction, the slide core is obliquely arranged, one end of the slide core is in sliding fit with the slide groove, and the other end of the slide core penetrates through the upper male die and extends to the lower female die.
Further, the upper fixing plate is further provided with a connecting channel extending along the horizontal direction, the connecting channel is communicated with the mounting cavity, a sliding seat is slidably arranged in the connecting channel, the sliding seat is movably connected with the sliding block, and the oil cylinder controls the sliding block to reciprocate along the vertical direction through the sliding seat. The sliding seat is arranged between the oil cylinder and the sliding block, the oil cylinder drives the sliding block to move through the sliding seat, compared with the fact that the oil cylinder is directly connected with the sliding block, the connecting area of the sliding seat and the sliding block is larger, the sliding block can be better protected from being damaged, and the service life of the sliding block is prolonged. The connecting channel enables the sliding seat to have a space sliding in the horizontal direction, and the integrity of the core pulling process can be ensured.
Further, the device also comprises a driving bar, wherein the driving bar inclines upwards, the driving bar and the horizontal plane are provided with an included angle alpha, the included angle alpha is an acute angle, the bottom end of the driving bar is fixedly connected with the sliding seat, and the sliding block is provided with a sliding channel matched with the driving bar. The driving strip is driven by the oil cylinder to do reciprocating rectilinear motion along the horizontal direction, and because the driving strip has an included angle with the horizontal plane and the driving strip is arranged in the sliding channel, the driving strip applies upward and downward force to the sliding block in the process that the driving strip is far away from and close to the sliding block, so that the sliding block can do reciprocating rectilinear motion in the vertical direction.
Further, still include the connecting block, the one end that the driving strip was kept away from to the slide is equipped with the spread groove, the hydro-cylinder includes hydro-cylinder body and output shaft, the connecting block can be dismantled and set up in the spread groove, the one end and the connecting block fixed connection of output shaft, the other end and the hydro-cylinder body coupling of output shaft. The connecting block and the connecting groove can be quickly assembled and disassembled, and the connecting block and the connecting groove are quickly put into use. The sliding seat is connected with the oil cylinder through the connecting block, the output shaft of the oil cylinder can apply acting force to the connecting block in the mold opening and closing process, abrasion of the connecting block is caused, abrasion of the sliding seat is reduced, and the normal use of the mold can be ensured only by replacing the connecting block for a period of time in subsequent use.
Further, the device further comprises a fixed block, the fixed block is fixedly arranged on the side surface of the upper fixed plate, which is communicated with the connecting channel, the oil cylinder body is fixedly connected with the fixed block, and the output shaft penetrates through the fixed block. The fixed block enables the oil cylinder to be fixedly arranged on the side face of the upper fixed plate, so that the output shaft can apply force to the sliding seat along the horizontal direction when the oil cylinder operates, the accuracy of the core pulling process is guaranteed, and meanwhile, in the pressure maintaining process of the die, the reaction force of the oil cylinder applied by the die is jointly born by the oil cylinder and the fixed block, and damage to the oil cylinder is reduced.
Further, the novel sliding seat comprises two pressing strips, wherein each pressing strip comprises a connecting part and a blocking part, bosses are arranged on two opposite side surfaces of the connecting channel, the connecting parts are fixedly connected with the bosses, the blocking parts protrude out of the plane where the bosses are located, and the sliding seat is arranged below the blocking parts of the two pressing strips. The battens enable the sliding seat to move only between the two battens, so that the force applied to the driving strip by the sliding seat is ensured to be in the horizontal direction, and the accuracy of the movement of the sliding seat is further ensured.
Further, still include the gag lever post, the vertical fixed setting of gag lever post is on the fixed plate down, the gag lever post be equipped with along the fixture block on horizontal direction protrusion in the top, be equipped with the fixed slot on the slide, the gag lever post passes the fixed plate, fixture block and fixed slot mutually support. When the die assembly starts, the upper fixing plate and the lower fixing plate are close to each other, the oil cylinder pushes the sliding block to return to the core, meanwhile, the installation block of the limiting rod is blocked with the fixing groove of the sliding seat, if the sliding block returns to the core first, the limiting rod can ensure that the upper fixing plate and the lower fixing plate cannot be completely assembled, the core part of the die is effectively protected, and the die can be completely and stably produced.
Further, the device also comprises a guide sliding seat, wherein the guide sliding seat is fixedly arranged in the mounting cavity, the guide sliding seat is provided with a sliding rail extending in the vertical direction, and the sliding block is arranged on the sliding rail in a sliding manner. The sliding block is matched with the guide sliding seat, the sliding block and the upper die seat are not in direct connection, the problem that the sliding block is worn on the upper die seat in the using process is solved, and the whole service life of the die is prolonged.
Further, the die further comprises an upper die holder and a lower die holder, wherein the upper fixing plate is fixedly arranged on the lower surface of the upper die holder, and the lower fixing plate is fixedly arranged on the upper surface of the lower die holder.
Compared with the prior art, the technical scheme has the following beneficial effects:
1. after the die assembly is completed, the sliding core, the upper male die and the lower female die are matched with each other to press and form a product, after the product is formed, the oil cylinder drives the sliding block to move upwards in the vertical direction at the moment before the die enters the die opening process, and the sliding block drives the sliding core to move upwards in the upward moving process. And when the slide core moves obliquely upwards, the slide core moves in the horizontal direction along the slide groove at the bottom of the slide block until the core pulling action is completed, and the upper die and the lower die start to be separated. In the process of core pulling and resetting, the sliding block and the sliding core are controlled to move in the vertical direction through the oil cylinder, the sliding core and the sliding block are small in mass, the oil cylinder can better control the accuracy of the core pulling process, meanwhile, the work output by the oil cylinder is small, and energy sources are saved.
2. When the die is opened, the oil cylinder drives the sliding seat to be far away from the sliding block and the sliding core, and the sliding block and the sliding core move upwards through the driving strip to perform core pulling. When the core pulling process is not started yet, the clamping block of the limiting rod and the clamping groove of the fixing groove are in a mutually clamped state, so that the upper die and the lower die are prevented from being separated. In the next mould closing process after the mould opening process is finished, at the moment, when the upper fixed plate and the lower fixed plate are mutually close, the oil cylinder drives the sliding seat to be close to the sliding block and the sliding core simultaneously, the sliding block and the sliding core move downwards through the driving strip, and meanwhile, the limiting rod moves upwards relative to the upper fixed plate and is mutually close to the fixing groove until the clamping block of the limiting rod is mutually clamped with the fixing groove when the mould closing is finished. When the mould breaks down and makes slide core and slider move downwards in advance, the slide is close to slider and slide core in advance, leads to the gag lever post to pass and goes up the fixed plate unable and mutually support with the fixed slot, and the length of gag lever post can prevent that the mould from closing the mould completely at this moment, guarantees when the mould that opens and shuts normally goes on, and the loose core process and the reset process of slide core and slider go on earlier step and accomplish simultaneously than the mould process that opens and shuts of upper and lower mould, effectually protected mould core part for the mould can be completely stable production.
Drawings
FIG. 1 is a front view of a structure for controlling core pulling sequence of a fixed mold slide block when a mold is opened and closed according to an embodiment;
Fig. 2 is an exploded schematic view of a structure for controlling the core-pulling sequence of a fixed mold slide block when a mold is opened and closed according to an embodiment;
FIG. 3 is a schematic cross-sectional view of a structure for controlling the sequence of core pulling of a fixed mold slide block when a mold is opened and closed according to an embodiment;
FIG. 4 is a schematic exploded view of a section of a structure for controlling the sequence of core pulling of a fixed mold slide block when a mold is opened and closed according to an embodiment;
fig. 5 is a schematic diagram of a driving bar structure of a structure capable of controlling core-pulling sequence of a fixed mold slide block when a mold is opened and closed according to an embodiment;
fig. 6 is a schematic diagram of a slide core structure of a structure capable of controlling core pulling sequence of a fixed mold slide block when a mold is opened and closed according to an embodiment.
Reference numerals illustrate:
1. The upper die comprises an upper die, 101, an upper die holder, 102, an upper fixing plate, 103, a guide sliding seat, 104, a sliding block, 105, a sliding core, 106, a driving bar, 107, a sliding seat, 108, a pressing bar, 109, an oil cylinder, 1091, an oil cylinder body, 1092, an output shaft, 1010, a connecting block, 1011, a fixing block, 1012 and an upper male die;
2. a lower die; 201, a lower die holder, 202, a lower fixing plate, 203, a lower female die, 204 and a limiting rod;
3. And (5) a product.
Detailed Description
In order to describe the technical content, constructional features, achieved objects and effects of the technical solution in detail, the following description is made in connection with the specific embodiments in conjunction with the accompanying drawings.
Referring to fig. 1-6, the embodiment discloses a structure capable of controlling core pulling sequence of a fixed mold slide block when a mold is opened and closed, comprising an upper mold 1, a lower mold 2 and an oil cylinder 109, wherein the upper mold 1 comprises an upper mold base 101, an upper fixed plate 102, an upper male mold 1012, a guide sliding seat 103, a slide block 104, a sliding core 105, a driving bar 106, a sliding seat 107, a connecting block 1010, a fixed block 1011 and two pressing strips 108, the upper fixed plate 102 is fixedly arranged below the upper mold base 101 through a bolt device, the upper fixed plate 102 is provided with a mounting cavity penetrating through the upper fixed plate 102 in the vertical direction, and the upper male mold 1012 is fixedly arranged in the mounting cavity through the bolt device. The lower die 2 comprises a lower die holder 201, a lower fixing plate 202, a lower female die 203 and a limiting rod 204, wherein the lower fixing plate 202 is fixedly arranged on the upper surface of the lower die holder 201 through a bolt device. The lower fixing plate 202 is provided with a mounting groove, the lower female die 203 is fixedly arranged in the mounting groove through a bolt device, and the upper male die 1012 is matched with the lower female die 203. The guide slide 103 is fixedly arranged in the mounting cavity through a bolt device and is positioned above the upper punch 1012, one side of the guide slide 103 is provided with a slide rail extending along the vertical direction, and the slide block 104 is movably connected with the guide slide 103 through the slide rail. The bottom of the sliding block 104 is provided with a sliding groove extending along the horizontal direction, the sliding core 105 is obliquely arranged, one end of the sliding core 105 is provided with a sliding core block matched with the sliding groove, the sliding core 105 is movably connected with the sliding block 104 through the sliding core block and the sliding groove, and the other end of the sliding core 105 penetrates through the upper male die 1012 and extends to the lower female die 203. The sliding core 105 forms an included angle β with the horizontal plane, and the included angle β is an acute angle, and in this embodiment, the included angle β is 60 °. The sliding block 104 is matched with the guide sliding seat 103, the sliding block 104 is not directly connected with the upper die holder 101, the problem that the sliding block 104 wears the upper die holder 101 in the using process is reduced, and the whole service life of the die is prolonged. The slide core 105 is positioned on a track of moving obliquely upwards in the core pulling process, the slide core 105 slides towards one end of the slide block 104 while moving obliquely upwards, so that the slide core 105 is prevented from colliding with other components of the die in the whole core pulling process, and damage to the slide core 105 is reduced.
The upper fixing plate 102 is provided with a connecting channel extending in the horizontal direction, and the connecting channel is communicated with the mounting cavity. The opposite side surfaces of the connecting channel are provided with bosses, the pressing bar 108 comprises a connecting part and a blocking part, the connecting part is fixedly connected with the bosses through bolt devices, and the blocking part protrudes out of the plane where the bosses are located. The slide 107 is arranged below the stops of the two beads 108. The battens 108 enable the sliding seat 107 to move only between the two battens 108, so that the force applied to the driving strip 106 by the sliding seat 107 is ensured to be in the horizontal direction, and the accuracy of the movement of the sliding seat 107 is further ensured.
A driving bar 106 is arranged between the sliding seat 107 and the sliding block 104, the driving bar 106 is inclined upwards, the other end of the driving bar 106 forms an included angle alpha with the horizontal plane, the included angle alpha is an acute angle, the bottom end of the driving bar 106 is fixedly connected with the sliding seat 107 through a bolt device, the sliding block 104 is provided with a sliding channel matched with the driving bar 106, a yielding cavity is arranged on one side of the sliding seat 103 close to the sliding block 104, the sliding channel is communicated with the yielding cavity, one end of the driving bar 106 far away from the sliding seat 107 penetrates through the sliding channel and enters the yielding cavity, and the included angle alpha in the embodiment is 45 degrees. The driving bar 106 is driven by the oil cylinder 109 to reciprocate in a linear direction, and because the driving bar 106 has an included angle with the horizontal plane and the driving bar 106 is arranged in the sliding channel, in the process that the driving bar 106 is far away from and near to the sliding block 104, the driving bar 106 applies upward and downward force to the sliding block 104, so that the sliding block 104 can reciprocate in a linear direction.
The end of the sliding seat 107 away from the driving bar 106 is provided with a connecting groove, and the connecting block 1010 is detachably arranged in the connecting groove. The oil cylinder 109 comprises an oil cylinder body 1091 and an output shaft 1092, one end of the output shaft 1092 is fixedly connected with the connecting block 1010, and the other end of the output shaft 1092 is fixedly connected with the oil cylinder body 1091. The fixed block 1011 is fixedly arranged on the side surface of the upper fixed plate 102 communicated with the connecting channel through a bolt device, the oil cylinder body 1091 is fixedly connected with the fixed block 1011 through the bolt device, and the output shaft 1092 penetrates through the fixed block 1011. The sliding seat 107 is arranged between the oil cylinder 109 and the sliding block 104, the oil cylinder 109 drives the sliding block 104 to move through the sliding seat 107, compared with the situation that the oil cylinder 109 is directly connected with the sliding block 104, the connecting area of the sliding seat 107 and the sliding block 104 is larger, the sliding block 104 can be better protected from being damaged, and the service life of the sliding block 104 is prolonged. The connecting channels allow the sliding seat 107 to have a space for sliding in the horizontal direction, so that the integrity of the core pulling process can be ensured. The connecting block 1010 and the connecting groove can be quickly assembled and disassembled, and are quickly put into use. The slide seat 107 is connected with the oil cylinder 109 through the connecting block 1010, and in the mold opening and closing process, the output shaft 1092 of the oil cylinder 109 can apply acting force to the connecting block 1010, so that abrasion of the connecting block 1010 is caused, abrasion of the slide seat 107 is reduced, and the normal use of the mold can be ensured only by replacing the connecting block 1010 for a period of time in subsequent use. The fixed block 1011 makes the oil cylinder 109 fixedly arranged on the side surface of the upper fixed plate 102, so that the output shaft 1092 can apply force to the slide seat 107 along the horizontal direction when the oil cylinder 109 operates, the accuracy of the core pulling process is ensured, and meanwhile, the reaction force of the oil cylinder 109 applied by the mould is borne by the oil cylinder 109 and the fixed block 1011 together in the mould pressure maintaining process, so that the damage to the oil cylinder 109 is reduced.
The stop lever 204 is vertical to be set up on last fixed plate 102, and stop lever 204 passes through bolt device and last fixed plate 102 fixed connection, and slide 107 middle part is equipped with the fixed slot, goes up fixed plate 102 and is equipped with the through-hole that extends along the vertical direction, and the both ends of through-hole are linked together with connecting channel and last fixed plate 102 bottom surface respectively, and the through-hole corresponds with the fixed slot position, and stop lever 204 is equipped with the fixture block that bulges in the top along the horizontal direction, and stop lever 204 passes the through-hole and passes through fixture block and fixed slot and mutually support with slide 107. When the die assembly starts, the upper fixed plate 102 and the lower fixed plate 202 are close to each other, the oil cylinder 109 pushes the sliding block 104 to return to the core, meanwhile, the installation block of the limiting rod 204 is blocked with the fixing groove of the sliding seat 107, if the sliding block 104 returns to the core first, and the limiting rod 204 cannot return, the limiting rod 204 can ensure that the upper fixed plate 102 and the lower fixed plate 202 cannot be completely clamped, so that the core part of the die is effectively protected, and the die can be completely and stably produced.
During assembly, the guide slide base 103 is fixedly connected with the upper die base 101 through a bolt device, the sliding block 104 is movably connected with the guide slide base 103 through a sliding rail, and the sliding core 105 is movably arranged at the bottom of the sliding block 104 through a sliding core block. One end of the driving bar 106 is fixedly arranged on the sliding seat 107 by a bolt device, and the other end of the driving bar 106 extends into the sliding channel. The connection portion of the two press bars 108 is fixedly provided on the boss in the connection passage by a bolt device, and the slider 107 is provided between the two press bars 108. The cylinder body 1091 is fixedly provided on the fixing block 1011 by a bolt means, and the output shaft 1092 is fixedly connected with the connection block 1010 through the fixing block 1011, the connection block 1010 is provided in the connection groove, and then the fixing block 1011 is fixedly provided on the side surface of the upper fixing plate 102 by a bolt means. The upper fixed plate 102 is fixedly connected with the upper die holder 101, the lower fixed plate 202 is fixedly connected with the lower die holder 201, one end of the limiting rod 204 is fixedly connected with the lower fixed plate 202 through a bolt device, and meanwhile, a clamping block at the other end of the limiting rod 204 is mutually blocked with a fixing groove of the sliding seat 107, so that the assembly is completed.
In the actual use process, after the die assembly is completed, at this time, the slide core 105, the upper punch 1012 and the lower die 203 are mutually matched to perform compression molding on the product 3, after the product 3 is molded, the die enters into the die opening process, at this time, the oil cylinder 109 drives the slide block 104 to move upwards in the vertical direction, and the slide block 104 drives the slide core 105 to move upwards in an inclined manner in the upward movement process. While the slide core 105 moves obliquely upward, the slide core 105 moves in the horizontal direction along the slide groove at the bottom of the slider 104 until the core pulling action is completed. The core pulling process and the mold opening and closing process are performed simultaneously, and the core pulling structure is arranged in the upper fixing plate 102, so that the whole structure is simple. After the core pulling is completed, the next mold closing process is started, at this time, in the process that the upper fixed plate 102 and the lower fixed plate 202 are mutually close, the oil cylinder 109 is driven to be close to the sliding block 104 and the sliding core 105 through the driving sliding seat 107, the sliding block 104 and the sliding core 105 are enabled to move downwards through the driving strip 106, meanwhile, the limiting rod 204 moves upwards relative to the upper fixed plate 102 and is mutually close to the fixed groove until the clamping block of the limiting rod 204 is mutually clamped with the fixed groove when the mold closing is completed. When the die breaks down to enable the slide core 105 and the slide block 104 to move downwards in advance, the slide seat 107 approaches to the slide block 104 and the slide core 105 in advance, so that the limiting rod 204 passes through the upper fixing plate 102 and cannot be matched with the fixing groove, the length of the limiting rod 204 can prevent the die from being completely clamped at the moment, the die core component is effectively protected, and the die can be produced completely stably.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, elements defined by the phrases "including" or "comprising" do not exclude the presence of additional elements in a process, method, article, or terminal device that includes the elements. In addition, herein, "greater than", "less than", "exceeding" and the like are understood to exclude the present number, and "above", "below", "within" and the like are understood to include the present number.
While the embodiments have been described above, other variations and modifications will occur to those skilled in the art once the basic inventive concepts are known, and it is therefore intended that the foregoing description and drawings illustrate only embodiments of the invention and not limit the scope of the invention, and it is therefore intended that the invention not be limited to the specific embodiments described, but that the invention may be practiced with their equivalent structures or with their equivalent processes or with their use directly or indirectly in other related fields.