CN114083767A - Injection molding machine with adjustable pile holding device and working method - Google Patents
Injection molding machine with adjustable pile holding device and working method Download PDFInfo
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- CN114083767A CN114083767A CN202111422270.8A CN202111422270A CN114083767A CN 114083767 A CN114083767 A CN 114083767A CN 202111422270 A CN202111422270 A CN 202111422270A CN 114083767 A CN114083767 A CN 114083767A
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- mold locking
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000007789 sealing Methods 0.000 claims description 17
- 230000007704 transition Effects 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 15
- 230000000994 depressogenic effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/64—Mould opening, closing or clamping devices
- B29C45/641—Clamping devices using means for straddling or interconnecting the mould halves, e.g. jaws, straps, latches
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/64—Mould opening, closing or clamping devices
- B29C45/67—Mould opening, closing or clamping devices hydraulic
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention provides an injection molding machine with an adjustable pile embracing device and a working method, wherein the injection molding machine comprises a rack, a fixed template, a movable template, an injection molding device, a mold locking mechanism and a pile embracing device; the pile embracing device comprises a mold locking rod, a pile embracing mechanism, an adjusting component and a measuring component; the mold locking rod comprises a rod body and a convex ring; a concave groove which acts with the convex ring is arranged on the pile embracing mechanism; the adjusting component is a linear driving mechanism, and a hole for the mold locking rod to pass through is formed in the linear driving mechanism; the linear driving mechanism is fixed on the frame or the fixed template, and a driving rod of the linear driving mechanism is connected with the pile embracing mechanism; the measuring component comprises a measuring electronic ruler, a measuring mounting plate and a measuring connecting plate. The working method comprises the steps of calculating the distance L which needs to be moved by the pile embracing mechanism by calculating the difference H, and then moving the pile embracing mechanism by the adjusting assembly. According to the invention, the convex ring can be matched with the concave groove so as to realize reliable cohesion, the cohesion position is accurate, the mold locking force is reliable, and the cohesion mechanism and the mold locking rod can be better protected.
Description
Technical Field
The invention relates to the technical field of injection molding machines, in particular to an injection molding machine with an adjustable pile holding device and a working method.
Background
In order to meet these requirements, the structure of the conventional injection molding machine is roughly as follows, including: the structure frame consists of a fixed template, a movable template, a rear template and a guide post, and a power cylinder for transmitting motion and locking force; the guide post in the structure frame is arranged between the fixed die plate and the rear die plate, the movable die plate is sleeved on the guide post and can slide along the guide post, the power cylinder body is fixed on the rear die plate or the fixed die plate, the plunger or the piston rod of the power cylinder is connected with the movable die plate, and the movable die plate is driven to open and close the die and lock the die through the action of the power cylinder.
The Chinese patent application No. 201010527261.0, published as 2011.03.16, discloses a two-plate machine type injection molding machine brake mechanism, which comprises four brake nuts and a driving oil cylinder, wherein the four brake nuts are divided into an upper group and a lower group with the same structure, each group of brake nuts is divided into a left brake nut and a right brake nut, one end of the driving oil cylinder is fixed on the right half brake nut of the left brake nut, a piston rod of the driving oil cylinder is connected with the left half nut of the right brake nut, the left half brake nut of the left brake nut is connected with the left half brake nut of the right brake nut, the right half brake nut of the left brake nut is connected with the right half brake nut of the right brake nut through a connecting rod, and the right half brake nut of the left brake nut is connected with the left half brake nut of the right brake nut through a synchronous connection mechanism. Has the advantages that: the synchronism of the operation of the contracting brake mechanism can be ensured, the operation period of the contracting brake mechanism is shortened, and therefore the cost of the whole contracting brake mechanism is saved.
However, according to the invention, the position of the pull rod is controlled and adjusted by acquiring the actual positions of the pull rod and the gate plate teeth when the mold locking force is in a preset value, so that whether the actual gap between the pull rod teeth and the gate plate reaches the standard can be known only after the contracting brake is carried out, and the contracting brake is carried out after the adjustment if the actual gap does not reach the standard, so that the step of the contracting brake is added.
Disclosure of Invention
The invention provides an injection molding machine with an adjustable pile embracing device and a working method, wherein the difference between the pile embracing mechanism and the original mold locking rod mold closing position is judged, the position of the pile embracing mechanism is moved according to the difference, so that a convex ring can be matched with a concave groove to realize reliable embracing, the embracing position is accurate, the mold locking force is reliable, and the embracing mechanism and the mold locking rod can be better protected.
In order to achieve the purpose, the injection molding machine with the adjustable pile embracing device comprises a rack, a fixed template, a movable template, an injection molding device, a mold locking mechanism and a pile embracing device; the fixed template is arranged on the frame, the movable template is connected with the mold locking mechanism, and the pile embracing device is arranged on the mold locking mechanism.
The pile embracing device comprises a mold locking rod, a pile embracing mechanism, an adjusting assembly and a measuring assembly.
The mold locking rod is fixed on the mold locking mechanism and comprises a rod body and more than two rings of convex rings arranged on the rod body.
Pile embracing mechanism installs on the adjustment subassembly, is equipped with the depressed slot that acts on with the bulge loop in the pile embracing mechanism.
The adjusting component is a linear driving mechanism, and a hole for the mold locking rod to pass through is formed in the linear driving mechanism; the linear driving mechanism is fixed on the frame or the fixed template, and a driving rod of the linear driving mechanism is connected with the pile embracing mechanism.
The measuring component comprises a measuring electronic ruler, a measuring mounting plate and a measuring connecting plate, the measuring mounting plate is arranged on the frame or the fixed template, the measuring electronic ruler is arranged on the measuring mounting plate, and the measuring end of the measuring electronic ruler is connected with the pile embracing device through the measuring connecting plate.
The working method of the injection molding machine with the adjustable pile embracing device comprises the following steps.
S1 a mold is installed between the fixed and movable mold plates.
S2, die assembly; the movable die plate is driven to move by the die locking mechanism, and the movable die plate drives the movable die of the die to move towards the fixed die of the die until the movable die and the fixed die are closed.
S3, adjusting the pile embracing mechanism, and the specific steps are as follows.
S31 calculates the height difference H from the installed die height and the preset die height.
S32, calculating the moving distance L of the pile embracing mechanism, and setting the height of the convex ring as h; calculating Q, wherein Q = H/H, and if Q is an integer, the moving distance L of the pile holding mechanism is X X H, wherein X is a natural number; if Q is a non-integer, the distance moved by the pile holding mechanism
L = H-ah i, where a is a rounded integer of Q.
S33, adjusting the pile embracing mechanism through the adjusting assembly according to the calculated distance L, and checking the distance L through the measuring electronic ruler.
S4 clasping the pile clasping mechanism to the mould locking rod so that the convex ring is clamped into the concave groove.
And S5, injecting the mixture into the mould through an injection device.
S6, opening the mould; and opening the clasping mechanism, and starting the mold locking mechanism to open the mold.
According to the injection molding machine with the adjustable pile embracing device and the corresponding working method, because different injection molding products are different, the molds arranged on the injection molding machine are different, and the heights of the molds are possibly different. In the invention, the convex ring is matched with the concave groove when the preset mould height is determined in advance, after a new mould is installed, the height difference between the pile embracing mechanism and the mould locking rod is determined according to the installed mould height and the preset mould height difference, and the position of the pile embracing mechanism is adjusted through the adjusting component, so that the convex ring can be matched with the concave groove after the new mould is installed, therefore, reliable embracing can be realized, the embracing position is accurate, the mould locking force is reliable, and the pile embracing mechanism and the mould locking rod can be better protected. Specifically, firstly, the height difference between the height of the mold to be installed and the preset height of the mold is determined, then Q is calculated, if Q is an integer, such as 0, 1, 2 and 3 … …, the height difference H is just a multiple of the height H of the convex ring, and the convex ring is provided with a plurality of convex rings, so that the pile embracing mechanism can not be moved, and the pile embracing mechanism can also be moved, and the convex ring can be matched with the concave groove in the two modes; if the calculated Q is not an integer, the pile holding mechanism is required to be moved to enable the convex ring to be matched with the concave groove, and the moving distance adopts the technical means of the invention.
Furthermore, the linear driving mechanism comprises an adjusting fixing ring, an adjusting limiting seat and an adjusting piston, the adjusting fixing ring is installed on the fixed die plate, the adjusting limiting seat is installed on the adjusting fixing ring far away from one end of the fixed die plate, a cavity is formed among the fixed die plate, the adjusting fixing ring and the adjusting limiting seat, one end of the adjusting piston is slidably located in the cavity, and the other end of the adjusting piston penetrates through the adjusting limiting seat and extends out of the adjusting limiting seat; a fixed sleeve is arranged on the fixed template, the hole is arranged on the fixed sleeve, and the adjusting piston is sleeved on the fixed sleeve; the pile embracing mechanism is connected to the adjusting connecting seat. The structure is equivalent to form a hydraulic cylinder or an air cylinder, and the pile embracing mechanism is driven to move by the hydraulic cylinder or the air cylinder.
Furthermore, a flange is arranged on the outer side of one end, close to the fixed die plate, of the adjusting fixing ring, a fixing ring is arranged at the flange, and the fixing ring is connected to the fixed die plate. Therefore, the adjusting and fixing ring is convenient to mount and dismount, and the fixing of the adjusting and fixing ring is reliable.
Furthermore, a first sealing ring is arranged between the adjusting fixing ring and the fixed template; a second sealing ring is arranged between the adjusting limiting seat and the adjusting fixing ring; a third sealing ring is arranged between the outer wall of the adjusting piston and the inner wall of the adjusting fixing ring; a fourth sealing ring is arranged between the adjusting piston and the adjusting limiting seat; a fifth sealing ring is arranged between the adjusting piston and the fixed sleeve. This improves the sealing performance.
Furthermore, the cross section of the convex ring comprises a linear part, an inclined part and a transition part, the linear part, the transition part and the inclined part are sequentially connected to form a triangle, and the linear part is arranged close to the fixed die plate. This structure allows good guiding by the inclined portion when the pile embracing mechanism embraces the pile, and the linear portion is provided, so that radial separation is less likely to occur at the position of the linear portion, and therefore, embracing reliability is good.
Further, pile embracing mechanism includes pile embracing mount pad, the spacing seat of pile embracing, pile embracing drive assembly, pile embracing main seat and pile embracing auxiliary seat, pile embracing mount pad links to each other with the adjustment assembly, is located and is connected with the spacing seat of pile embracing on the both sides of pile embracing mount pad bottom, is equipped with pile embracing main seat in one of pile embracing mount pad below, is equipped with pile embracing drive assembly on the outside of pile embracing main seat, is equipped with the pile embracing auxiliary seat on the other end of pile embracing mount pad below, pile embracing main seat and pile embracing auxiliary seat are placed on the spacing seat of pile embracing. This structure moves on the spacing seat of embrace stake through embrace stake main tributary seat and embrace stake vice seat to this realizes embrace stake mode locking.
Further, pile driving assembly includes that the pile drives actuating cylinder, pile drive plate and pile actuating lever, is equipped with the pile drive plate on the pile drives actuating cylinder, the piston rod that the pile driven actuating cylinder was passed the pile drive plate and is connected on the center in the pile main seat outside be equipped with the pile actuating lever on the both ends of pile drive plate, the pile actuating lever runs through the pile main seat and is connected with the pile auxiliary seat. This structure, when needs carry out the pile, the pile drives actuating cylinder and stretches out the direction that drives piston rod drive pile owner seat and remove to die locking pole one side, go into behind the depressed groove on the pile owner seat when the bulge loop card, pile owner seat is restricted and stops removing, and the pile drives actuating cylinder and continues to stretch out the piston rod, but because pile owner seat has been unable to continue to remove, thereby make the cylinder body that the pile drove actuating cylinder passes through the reaction force of piston rod and remove to the direction of keeping away from the die locking pole, thereby it removes to drive the pile actuating lever of connecting on the pile drive plate, can drive from this and connect on the pile actuating lever and lie in the vice seat of pile of die locking pole opposite side and remove to the die locking pole, can accomplish the pile operation after the depressed groove card goes into the bulge loop on the vice seat of pile, therefore, the motion that pile owner seat and pile pair seat can be realized to drive actuating cylinder through same pile, moreover, the steam generator is simple structure.
Further, pile embracing limiting blocks are arranged at two ends of the pile embracing limiting seat, and the pile embracing main seat and the pile embracing auxiliary seat are arranged between the pile embracing limiting blocks in a sliding mode. Therefore, the positions of the pile main seat and the pile embracing auxiliary seat can be better limited.
Furthermore, the mold locking mechanism comprises a mold locking plate, mold locking columns and a mold locking oil cylinder, the mold locking plate is provided with the bottom ends of the mold locking rods, the mold locking columns are arranged on four corners of the mold locking plate and penetrate through the fixed mold plate to be connected with the movable mold plate, the mold locking oil cylinders are arranged at two ends of the mold locking plate, a cylinder body of each mold locking oil cylinder is connected with the fixed mold plate, and a piston rod of each mold locking oil cylinder is connected with the mold locking plate.
Drawings
Fig. 1 is a schematic structural diagram of an injection molding machine with an adjustable pile embracing device.
Fig. 2 is an exploded view of the adjustment assembly and measurement assembly of the present invention.
FIG. 3 is a cross-sectional view of the adjustment assembly of the present invention.
Fig. 4 is a schematic structural diagram of the rack and the clamping mechanism of the present invention.
Fig. 5 is an exploded view of the pile embracing mechanism of the present invention.
Fig. 6 is an exploded view of another perspective of the pile embracing mechanism of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 6, the injection molding machine with the adjustable pile holding device includes a frame 01, a fixed mold plate 03, a movable mold plate 02, an injection molding device 40, a mold locking mechanism 5, and a pile holding device.
In the drawings of the specification of the present invention, a frame 01 is only partially shown, a fixed mold plate 03 is mounted on the frame 01, a movable mold plate 02 is positioned above the fixed mold plate 03, and an injection molding device 40 is mounted on the movable mold plate 02. in the present invention, the injection molding device 40 is an existing injection molding structure, a mold locking mechanism 5 is arranged between the frame 01 and the movable mold plate 02, and a pile embracing device is arranged between the fixed mold plate 03 and the mold locking mechanism 5.
The mold locking mechanism 5 comprises a mold locking plate 51, mold locking columns 52 and mold locking oil cylinders 53, wherein the mold locking plate 51 is provided with bottom ends of mold locking rods 04, the mold locking columns 52 are arranged at four corners of the mold locking plate 51 and penetrate through a fixed mold plate 03 to be connected with a movable mold plate 02, the mold locking oil cylinders 53 are arranged at two ends of the mold locking plate 51, the fixed mold plate 03 is connected with a cylinder body of the mold locking oil cylinder 53, and piston rods of the mold locking oil cylinders 53 are connected with the mold locking plate 51. According to the structure, when mold closing is needed, the mold locking oil cylinder 53 is started, the mold locking oil cylinder 53 rapidly drives the mold locking plate 51 to move downwards, and the mold locking plate 51 drives the movable mold plate 02 to move downwards through the mold locking column 52, so that mold closing is realized; if the mold needs to be opened, the mold locking oil cylinder 53 is started, the mold locking oil cylinder 53 rapidly drives the mold locking plate 51 to move upwards, and the mold locking plate 51 drives the movable mold plate 02 to move upwards through the mold locking column 52, so that the mold opening is realized.
The pile embracing device comprises a mold locking rod 01, a pile embracing mechanism 1, an adjusting component 2 and a measuring component 3.
The lower end of the mold locking rod is fixed on the mold locking plate 51, and the mold locking rod 1 comprises a rod body 101 and more than two circles of convex rings 041 arranged on the rod body 101. The cross section of the convex ring 041 includes a linear portion 0411, a slope portion 0412 and a transition portion 0413, the linear portion 0411, the transition portion 0412 and the slope portion 0413 are connected in sequence to form a triangle, and the linear portion 0411 is disposed close to the fixed die plate 03.
The pile embracing driving assembly 13 comprises a pile embracing driving cylinder 131, a pile embracing driving plate 132 and a pile embracing driving rod 133, wherein the pile embracing driving cylinder 131 is provided with the pile embracing driving plate 132, a piston rod of the pile embracing driving cylinder 131 penetrates through the pile embracing driving plate 132 and is connected to the center of the outer side of the pile embracing main seat 14, the two ends of the pile embracing driving plate 132 are provided with the pile embracing driving rod 133, the pile embracing driving rod 133 penetrates through the pile embracing main seat 14 and is connected with the pile embracing auxiliary seat 15, so that the arrangement is realized, when pile embracing is required, the piston rod of the pile embracing driving cylinder 131 drives the pile embracing main seat 14 to move towards one side of the mold locking rod 04, when the convex ring 041 is clamped into the concave groove 042 on the pile embracing main seat 14, the pile embracing main seat 14 is limited to stop moving, the pile embracing driving cylinder 131 continuously extends out of the piston rod, but the pile main seat 14 cannot continuously move, so that the cylinder body of the pile embracing driving cylinder 131 moves towards the direction far away from the mold locking rod 04 through the reactive force of the piston rod, thereby drive the pile driving pole 133 of connection on pile driving board 132 and remove, can drive from this and connect on pile driving pole 133 and lie in the vice seat 15 of pile of holding of mode locking pole 04 opposite side and remove to mode locking pole 04, can accomplish the pile holding operation after the bulge loop 041 is gone into to the sunken groove 042 card on the vice seat 15 of pile holding.
As shown in fig. 6, pile holding limiting blocks 121 are arranged at two ends of the pile holding limiting seat 12, and the pile holding main seat 14 and the pile holding auxiliary seat 15 are slidably arranged between the pile holding limiting blocks 12; when a pile needs to be untied, the pile driving cylinder 131 retracts to drive the pile main seat 14 to move towards the direction far away from the mold locking rod 04, after the pile driving cylinder is contacted with the pile limiting block 121 at one end of the pile limiting seat 12, the pile main seat 14 is blocked and cannot move continuously, the pile driving cylinder 131 retracts to drive the piston rod continuously, so that the cylinder body of the pile driving cylinder 131 moves towards the direction of the mold locking rod 04 through the acting force of the piston rod, the pile driving rod 133 connected to the pile driving plate 132 moves, the pile auxiliary seat 15 can be driven to move away from the mold locking rod 04, after the pile auxiliary seat 15 is contacted with the pile limiting block 121 at the other end of the pile limiting seat 12, the pile driving cylinder 131 stops working, and therefore separation between the pile driving device 1 and the mold locking rod 04 is completed.
The adjusting assembly 2 is a linear driving mechanism, and in this embodiment, the adjusting assembly 2 includes an adjusting fixing ring 41, an adjusting limiting seat 42 and an adjusting piston 43.
A flange 41a is provided on the outer side of one end of the adjusting fixing ring 41 close to the fixed die plate, a fixing ring 411 is provided on the flange 41a, and the fixing ring 411 is connected to the fixed die plate 03 by bolts. The adjusting limit seat 42 is installed on the adjusting fixing ring 41 far away from one end of the fixed die plate, and a cavity 40 is formed among the fixed die plate 03, the adjusting fixing ring 41 and the adjusting limit seat 42. The adjusting piston is provided with a large end and a small end, the large end of the adjusting piston is slidably positioned in the cavity 40, and the small end of the adjusting piston penetrates through the adjusting limiting seat and extends out of the adjusting limiting seat 42; the fixed die plate 03 is provided with a fixed sleeve 54, the fixed sleeve is internally provided with a through hole 541, the hole 541 is used for a die locking rod to pass through, and the adjusting piston 43 is sleeved on the fixed sleeve 54.
In order to improve the sealing performance, a first sealing ring is arranged between the adjusting fixing ring and the fixed die plate; a second sealing ring is arranged between the adjusting limiting seat and the adjusting fixing ring; a third sealing ring is arranged between the outer wall of the adjusting piston and the inner wall of the adjusting fixing ring; a fourth sealing ring is arranged between the adjusting piston and the adjusting limiting seat; a fifth sealing ring is arranged between the adjusting piston and the fixed sleeve.
Above-mentioned adjusting part 2, when the upper end for adjusting the piston pours into hydraulic oil into, adjusting the piston downstream, then drive pile embracing mechanism downstream, when the main aspects below for adjusting the piston pours into hydraulic oil into, then adjusting the piston upstream to drive pile embracing mechanism upstream.
In the invention, the adjusting component can also be a cylinder with a hole in the center or a linear motor with a hole in the center, etc.
As shown in fig. 2, the measuring assembly 3 includes a measuring electronic ruler 31, a measuring mounting plate 32 and a measuring connecting plate 33, the measuring mounting plate 32 is disposed at the bottom end of the fixed die plate 03, the measuring electronic ruler 31 is disposed on the measuring mounting plate 32, and the measuring end of the measuring electronic ruler 31 is connected to the pile-embracing mechanism through the measuring connecting plate 33.
The working method of the injection molding machine with the adjustable pile embracing device comprises the following steps.
S1 a mold is installed between the fixed and movable mold plates.
S2, die assembly; the movable die plate is driven to move by the die locking mechanism, and the movable die plate drives the movable die of the die to move towards the fixed die of the die until the movable die and the fixed die are closed.
S3, adjusting the pile embracing mechanism, and the specific steps are as follows.
S31 calculates the height difference H from the installed die height and the preset die height. And setting the height of the installed die as b, and the preset height of the die as c, wherein H is the absolute value of b-c.
S32, calculating the moving distance L of the pile embracing mechanism, and setting the height of the convex ring as h; calculating Q, wherein Q = H/H, and if Q is an integer, the moving distance L of the pile holding mechanism is X X H, wherein X is a natural number; if Q is a non-integer, the distance moved by the pile holding mechanism
L = H-ah i, where a is a rounded integer of Q. For example, if H =5 and H =15, Q =3, which is just an integer, in this case, the pile-embracing mechanism may not move or ensure the fitting of the male ring and the female groove, or may move by a multiple of 5. Assuming H =15.5, then Q is a non-integer, then L = i 15.5-3 x 5 i =0.5, and Q =3.1, then a takes 3 during the calculation. Thus, the pile embracing mechanism needs to be moved by 0.5. The units of distance in the present invention may be meters, decimeters, centimeters, or millimeters.
S33, adjusting the pile embracing mechanism through the adjusting assembly according to the calculated distance L, and checking the distance L through the measuring electronic ruler.
S4 clasping the pile clasping mechanism to the mould locking rod so that the convex ring is clamped into the concave groove.
And S5, injecting the mixture into the mould through an injection device.
S6, opening the mould; and opening the clasping mechanism, and starting the mold locking mechanism to open the mold.
According to the injection molding machine with the adjustable pile embracing device and the corresponding working method, because different injection molding products are different, the molds arranged on the injection molding machine are different, and the heights of the molds are possibly different. In the invention, the convex ring is matched with the concave groove when the preset mould height is determined in advance, after a new mould is installed, the height difference between the pile embracing mechanism and the mould locking rod is determined according to the installed mould height and the preset mould height difference, and the position of the pile embracing mechanism is adjusted through the adjusting component, so that the convex ring can be matched with the concave groove after the new mould is installed, therefore, reliable embracing can be realized, the embracing position is accurate, the mould locking force is reliable, and the pile embracing mechanism and the mould locking rod can be better protected. Specifically, firstly, the height difference between the height of the mold to be installed and the preset height of the mold is determined, then Q is calculated, if Q is an integer, such as 0, 1, 2 and 3 … …, the height difference H is just a multiple of the height H of the convex ring, and the convex ring is provided with a plurality of convex rings, so that the pile embracing mechanism can not be moved, and the pile embracing mechanism can also be moved, and the convex ring can be matched with the concave groove in the two modes; if the calculated Q is not an integer, the pile holding mechanism is required to be moved to enable the convex ring to be matched with the concave groove, and the moving distance adopts the technical means of the invention.
Claims (10)
1. An injection molding machine with an adjustable pile embracing device comprises a frame, a fixed template, a movable template, an injection molding device, a mold locking mechanism and a pile embracing device; the fixed template is arranged on the frame, the movable template is connected with the mold locking mechanism, and the pile embracing device is arranged on the mold locking mechanism; the method is characterized in that:
the pile embracing device comprises a mold locking rod, a pile embracing mechanism, an adjusting component and a measuring component;
the mold locking rod is fixed on the mold locking mechanism and comprises a rod body and more than two circles of convex rings arranged on the rod body;
the pile embracing mechanism is arranged on the adjusting component and is provided with a concave groove which acts with the convex ring;
the adjusting component is a linear driving mechanism, and a hole for the mold locking rod to pass through is formed in the linear driving mechanism; the linear driving mechanism is fixed on the frame or the fixed template, and a driving rod of the linear driving mechanism is connected with the pile embracing mechanism;
the measuring component comprises a measuring electronic ruler, a measuring mounting plate and a measuring connecting plate, the measuring mounting plate is arranged on the frame or the fixed template, the measuring electronic ruler is arranged on the measuring mounting plate, and the measuring end of the measuring electronic ruler is connected with the pile embracing device through the measuring connecting plate.
2. An injection molding machine having an adjustable pilger device as claimed in claim 1, wherein: the linear driving mechanism comprises an adjusting fixing ring, an adjusting limiting seat and an adjusting piston, the adjusting fixing ring is arranged on the fixed die plate, the adjusting limiting seat is arranged on the adjusting fixing ring far away from one end of the fixed die plate, a cavity is formed among the fixed die plate, the adjusting fixing ring and the adjusting limiting seat, one end of the adjusting piston is slidably positioned in the cavity, and the other end of the adjusting piston penetrates through the adjusting limiting seat and extends out of the adjusting limiting seat; a fixed sleeve is arranged on the fixed template, the hole is arranged on the fixed sleeve, and the adjusting piston is sleeved on the fixed sleeve; the pile embracing mechanism is connected to the adjusting connecting seat.
3. An injection molding machine having an adjustable pilger device as claimed in claim 2, wherein: the outer side of one end, close to the fixed die plate, of the adjusting fixing ring is provided with a flange, the fixing ring is arranged at the flange, and the fixing ring is connected to the fixed die plate.
4. An injection molding machine having an adjustable pilger device as claimed in claim 2, wherein: a first sealing ring is arranged between the adjusting fixing ring and the fixed template; a second sealing ring is arranged between the adjusting limiting seat and the adjusting fixing ring; a third sealing ring is arranged between the outer wall of the adjusting piston and the inner wall of the adjusting fixing ring; a fourth sealing ring is arranged between the adjusting piston and the adjusting limiting seat; a fifth sealing ring is arranged between the adjusting piston and the fixed sleeve.
5. An injection molding machine having an adjustable pilger device as claimed in claim 1, wherein: the section of the convex ring comprises a straight line part, a slope part and a transition part, wherein the straight line part, the transition part and the slope part are sequentially connected to form a triangle, and the straight line part is arranged close to the fixed die plate.
6. An injection molding machine having an adjustable pilger device as claimed in claim 1, wherein: embrace pile mechanism including embracing a pile mount pad, embrace spacing seat of stake, embrace a pile drive assembly, embrace a pile main seat and embrace a pile sub-seat, embrace a pile mount pad and adjust the subassembly and link to each other, be located and be connected with the spacing seat of embracing a pile on the both sides of embracing a pile mount pad bottom, be equipped with embracing a pile main seat in one of embrace a pile mount pad below, be equipped with embracing a pile drive assembly on embracing a pile main seat's the outside, be equipped with embracing a pile sub-seat on embracing a pile mount pad below the other end, embrace a pile main seat and embrace a pile sub-seat and place on embracing a pile spacing seat.
7. An injection molding machine having an adjustable pilger device as claimed in claim 6, wherein: the pile driving assembly comprises a pile driving cylinder, a pile driving plate and a pile driving rod, wherein the pile driving plate is arranged on the pile driving cylinder, a piston rod of the pile driving cylinder penetrates through the pile driving plate to be connected to the center outside a pile main seat, the pile driving rod is arranged at two ends of the pile driving plate and penetrates through the pile main seat and is connected with an auxiliary seat of the pile.
8. An injection molding machine having an adjustable pilger device as claimed in claim 7, wherein: pile embracing limiting blocks are arranged at two ends of the pile embracing limiting seat, and the pile embracing main seat and the pile embracing auxiliary seat are arranged between the pile embracing limiting blocks in a sliding mode.
9. An injection molding machine having an adjustable pilger device as claimed in claim 1, wherein: the mold locking mechanism comprises a mold locking plate, mold locking columns and mold locking oil cylinders, the mold locking plate is provided with the bottom ends of mold locking rods, the mold locking columns are arranged on four corners of the mold locking plate and penetrate through the fixed mold plate to be connected with the movable mold plate, the mold locking oil cylinders are arranged at two ends of the mold locking plate, a cylinder body of each mold locking oil cylinder is connected with the fixed mold plate, and a piston rod of each mold locking oil cylinder is connected with the mold locking plate.
10. A method of operating an injection molding machine having an adjustable pilger mechanism as claimed in claim 1, comprising the steps of:
s1, installing a mould between the fixed mould plate and the movable mould plate;
s2, die assembly; the movable die plate is driven to move by the die locking mechanism, and the movable die plate drives the movable die of the die to move towards the fixed die of the die until the movable die and the fixed die are folded;
s3, adjusting the pile embracing mechanism, and specifically comprising the following steps:
s31, calculating a height difference H according to the height of the mounted die and the preset die height;
s32, calculating the moving distance L of the pile embracing mechanism, and setting the height of the convex ring as h; calculating Q, wherein Q = H/H, and if Q is an integer, the moving distance L of the pile holding mechanism is X X H, wherein X is a natural number; if Q is a non-integer, the distance moved by the pile holding mechanism
L = H-ah i, where a is a rounded integer of Q;
s33, adjusting the pile embracing mechanism through the adjusting assembly according to the calculated distance L, and checking the distance L through the measuring electronic ruler;
s4, embracing the pile embracing mechanism on the mould locking rod, so that the convex ring is clamped into the concave groove;
s5, injecting the plastic into the mould through an injection device;
s6, opening the mould; and opening the clasping mechanism, and starting the mold locking mechanism to open the mold.
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| JPH0418310A (en) * | 1990-05-11 | 1992-01-22 | Mitsubishi Heavy Ind Ltd | Mold thickness adjusting device |
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| CN203077567U (en) * | 2012-08-22 | 2013-07-24 | 仁兴机械（深圳）有限公司 | Independent tooth matching device for four brake units of two-plate direct press type mold clamping mechanism |
| CN207207032U (en) * | 2017-08-15 | 2018-04-10 | 东莞市隆亨机械有限公司 | Injection machine mechanical high-voltage clamping mechanism |
| CN112519158A (en) * | 2019-09-19 | 2021-03-19 | 苏州立注机械有限公司 | Injection molding machine clamping cylinder structure |
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|---|---|---|---|---|
| JPH0418310A (en) * | 1990-05-11 | 1992-01-22 | Mitsubishi Heavy Ind Ltd | Mold thickness adjusting device |
| JPH08276482A (en) * | 1995-04-04 | 1996-10-22 | Mitsubishi Heavy Ind Ltd | Mold thickness adjusting apparatus |
| JPH0911297A (en) * | 1995-06-27 | 1997-01-14 | Ube Ind Ltd | Injection press molding method and injection molding machine |
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| CN114083767B (en) | 2023-10-27 |
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