A full-automatic separating device for injection-molded parts and a nozzle

Abstract

The application provides a full-automatic separation device for injection-molded parts and a nozzle, which comprises a base provided with mounting positions; a lifting assembly arranged on the base, the lifting assembly being provided with a lifting table, and the lifting table moving back and forth along the vertical direction; a translation assembly arranged on the lifting table, the translation assembly being provided with a translation table, and the translation table moving back and forth along the horizontal direction; a plurality of cutters arranged on the translation assembly and used for separating injection-molded parts; a plurality of fixing supports arranged on the translation assembly and used for fixing the injection-molded parts; and a plurality of first accommodation holes corresponding to the positions of the fixing supports, and the plurality of first accommodation holes correspond to the positions of the fixing supports one by one. The fixing supports are arranged on the translation assembly to position the injection-molded products, the translation table drives the cutters to realize accurate separation of the injection-molded products, and after separation, laser marking is performed from the first accommodation holes. The whole process does not need manual operation, the positioning is accurate, the separation incision of the injection-molded products is accurate, the product quality is guaranteed, the production line efficiency is improved, and the application is worth promoting.

Description

Technical Field

[0001] This invention belongs to the field of injection molding technology, and in particular to a fully automatic separation device for injection molded parts and sprue. Background Technology

[0002] In the injection molding process, the injection molded product and the sprue are formed as a single piece. After the product cools and solidifies, the injection molded product and the sprue need to be separated. The traditional solution mainly involves manual separation using specialized tools, such as separating pliers or separating knives, to separate the injection molded product from the sprue. This results in a high workload for operators on the production line. Furthermore, manual operation can lead to inaccuracies in the cut at the separation point, compromising product quality. Therefore, there is an urgent need for an automated system to replace manual labor and address these shortcomings. Summary of the Invention

[0003] The purpose of this invention is to provide a fully automatic separation device for injection molded parts and sprues, so as to solve the problems of high manual labor intensity and inconsistent separation cuts of products caused by the manual separation of existing injection molded products, which leads to a decline in product quality.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An automatic separation device for injection molded parts and sprue marks, comprising:

[0006] Base;

[0007] A translation component is mounted on the base. The translation component includes a first fixed seat, a second fixed seat, and a translation stage. The first fixed seat and the second fixed seat are spaced apart on the base. The translation stage is movably mounted between the first fixed seat and the second fixed seat. The translation component is provided with multiple cutters for dividing injection molded parts and multiple fixing brackets for fixing injection molded parts. The multiple fixing brackets can extend and retract along the moving direction of the translation stage.

[0008] In some embodiments, the translation assembly further includes a second guide shaft, which is disposed between and connects the first fixed base and the second fixed base, and the translation stage is movably disposed on the second guide shaft.

[0009] In some embodiments, the translation stage is provided with a first connecting shaft that moves along its own axial direction. The first connecting shaft is arranged parallel to the second guide shaft, and the fixed bracket is arranged at the free end of the first connecting shaft.

[0010] In some embodiments, the translation stage is provided with a locking clamp, and the second fixed seat is provided with a locking groove. The locking clamp and the locking groove are positioned opposite each other. When the translation stage abuts against the second fixed seat, the space formed by the locking clamp and the locking groove is adapted to the shape of the injection molded part.

[0011] In some embodiments, the locking clamp is movably disposed on the translation stage. The locking clamp includes a fourth guide shaft fixed to the translation stage, a second spring sleeved on the fourth guide shaft, and a locking slider that can move relative to the fourth guide shaft axially. When the locking slider moves axially away from the second fixed seat along the fourth guide shaft axially, the second spring is in a compressed state.

[0012] In some embodiments, the second fixing seat is provided with a first clearance groove. When one end of the first connecting shaft abuts against the inner wall of the first clearance groove and is compressed to a preset position, the injection molded part is tightly attached to the locking groove.

[0013] In some embodiments, when the translation stage is in its initial position, a first preset distance between the central axis of the fixed bracket and the translation stage is greater than a second preset distance between the second end face of the locking clamp located between the translation stage and the second fixed seat and the translation stage.

[0014] In some embodiments, a laser engraving device is also included, which is disposed on the outside of the second fixed base. The second fixed base is provided with a plurality of first clearance holes corresponding to the positions of a plurality of fixed brackets. In the initial state, the laser port of the laser engraving device corresponds to the position of the first clearance hole located at the uppermost end of the second fixed base.

[0015] In some embodiments, a lifting assembly is also included on the base. The lifting assembly includes a first guide shaft and a lifting platform. The translation component is disposed on the lifting platform. The first guide shaft is fixed to the base. The lifting platform is movably disposed on the first guide shaft. The lifting direction of the lifting platform is consistent with the arrangement direction of the plurality of first clearance holes.

[0016] In some embodiments, a first limiting block is provided at the end of the first guide shaft away from the base. When the lifting platform abuts against the first limiting block, the laser engraving device completes the engraving.

[0017] The beneficial effects of this invention are as follows:

[0018] By setting up a fully automatic separation device and laser engraving equipment, the separation of injection molded parts from the sprue is efficiently replaced by manual labor, and the engraving is automated after separation. This reduces the need for manual labor and lowers production costs. At the same time, the fixed bracket and locking clamp are designed to be telescopic and adjustable to further meet the needs of dividing parts of different sizes, ensuring that the parts can be fully clamped and avoiding loosening during the division process, which could lead to inconsistent cuts.

[0019] By setting a fixed bracket on the device for coarse positioning, and through the cooperation of locking clamp and locking groove, the positioning of injection molded parts is further improved, and the injection molded parts are fixed to the first clearance hole. This ensures that the separation of each injection molded part from the sprue and the engraving after separation can be carried out accurately, improving the engraving accuracy and avoiding positional deviations caused by manual placement, which would lead to the scrapping of the workpiece. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural schematic diagram of a fully automatic separation and engraving device for injection molded parts and sprue gates according to the present invention;

[0021] Figure 2 This is a side view of a fully automatic separation and engraving device for injection molded parts and sprue gates according to the present invention;

[0022] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0023] Figure 4 This is a three-dimensional structural diagram of a fully automatic separation and engraving device for injection molded parts and sprues, with the second fixing seat removed, according to the present invention.

[0024] Figure 5 for Figure 4 The diagram on the right side of the image.

[0025] Figure 6 This is a three-dimensional structural diagram of a fully automatic separation and engraving device for injection molded parts and sprue, wherein the second fixing seat is fixed on the lifting assembly.

[0026] Figure 7 This is a main body diagram of a fully automatic separation and engraving device for injection molded parts and sprue gates according to the present invention;

[0027] Figure 8 for Figure 7 Sectional view at point AA;

[0028] Figure 9 This is a top view of a fully automatic separation and engraving device for injection molded parts and sprue gates according to the present invention;

[0029] Figure 10 for Figure 9Sectional view at point BB. Detailed Implementation

[0030] The present invention will be further described in detail below with reference to the accompanying drawings. In the description of this embodiment, unless otherwise stated, the terms "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the pressure forming mold box referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0031] like Figure 1 As shown, this invention provides a fully automatic separation device for injection-molded parts and sprues, mainly including a base 100, a lifting assembly 200 disposed on the base 100, and a translation assembly 300 disposed on the lifting assembly 200. A first through hole is provided on the base 100, and a first drive mechanism 101 is provided at the lower end of the base 100. The output end of the first drive mechanism 101 passes through the first through hole, driving the lifting platform 203 to perform reciprocating lifting motion. The translation assembly 300 is provided with a cutter 3034 for separating the injection-molded parts and sprues, a fixing bracket 3032 for positioning and fixing the injection-molded parts, and a first clearance hole 3041 for engraving. The number of fixing brackets 3032 matches the number of first clearance holes 3041. Figure 3 As shown, this is an outer side view of the second fixed base 304. It can be clearly seen that the position of the fixed bracket 3032 corresponds one-to-one with the position of the first clearance hole 3041. The arrangement direction of the multiple first clearance holes 3041 is consistent with the lifting direction of the lifting platform 203. In this embodiment, there are two first clearance holes 3041 and two fixed brackets 3032, and they are arranged in a vertical direction. The cutter 3034 is distributed on both sides of the fixed bracket 3032. When the injection part is located on the fixed bracket 3032, the cutting edge of the cutter 3034 corresponds to the connection between the injection part and the sprue.

[0032] In this embodiment, there are four cutters 3034, located on the upper and lower sides of the two fixed supports 3032 respectively. Since the connection between the injection molded part and the sprue is located outside the translation assembly 300, cutters 3034 are also provided on the outside of the translation assembly 300 to separate the injection molded part from the sprue. The horizontal movement of the translation stage 303 on the translation assembly 300 moves the injection molded part to a preset position, and the cutters 3034 precisely separate the injection molded part from the sprue. Simultaneously, after the injection molded part is separated from the sprue, a laser beam passes through the first clearance hole 3041 and illuminates the surface of the injection molded part for engraving. When the engraving of the first injection molded part at the upper end is completed, the lifting stage 203 rises to a predetermined position, allowing the laser beam to pass through the second first clearance hole 3041 at the lower end and illuminate the surface of the second part for engraving. Then the robotic arm clamps the sprue and places it into the pre-positioned cargo box. The translation stage 302 moves the separated injection molded part to the initial position. The robotic arm then clamps the separated injection molded part into the pre-positioned cargo box. Thus, the complete action of separating an injection molded part from the sprue and engraving the lettering after separation is completed.

[0033] In one embodiment, to achieve the reciprocating lifting motion of the lifting platform 203, the lifting assembly 200 further includes a first guide shaft 201. Specifically, as shown... Figure 2 and Figure 4 As shown, there are four first guide shafts 201, located at the four corners of the base 100. One end of each first guide shaft 201 is fixed to the base 100. The lifting platform 203 has holes that fit the first guide shafts 201. A guide sleeve is provided between the first guide shafts 201 and the lifting platform 203. The lower end of the lifting platform 203 is connected to a drive shaft. The drive shaft passes through a first through hole on the base 100 and connects to the output end of the first drive mechanism 101. The first drive mechanism 101 drives the drive shaft to move axially, thereby driving the lifting platform 203 to move vertically along the first guide shafts 201, completing the lifting action. In this embodiment, the first drive mechanism 101 is preferably a cylinder. Optionally, the first drive mechanism 101 can be a motor, and the drive shaft can be a lead screw, which can also complete the lifting action of the lifting platform 203. It is understood that the lifting method of the lifting platform 203 is not limited by this invention; as long as the lifting action of the lifting platform 203 is completed, the translation component 300 can be lifted and lowered.

[0034] Furthermore, to prevent the lifting platform 203 from moving excessively, such as Figure 5As shown, a first limiting block 202 is provided at the non-fixed end of the first guide shaft 201. By providing the first limiting block 202, the lifting platform 203 is prevented from detaching from the first guide shaft 201. Specifically, in this embodiment, since there are two first clearance holes 3041, the first limiting block 202 not only limits the lifting platform 203 to prevent it from detaching from the first guide shaft 201, but more importantly, when the lifting platform 203 abuts against the first limiting block 202, the position of the first clearance hole 3041 located at the lower end of the translation component 300 corresponds exactly to the position of the laser port, allowing the laser to irradiate the injection molded part and perform engraving. When the number of fixed brackets 3032 and the number of first clearance holes 3041 are greater than two, the first limiting block 202 only has a positioning function for the lowest first clearance hole 3041 on the translation component 300. The movement distance of the first clearance hole 3041 located in the middle position can be set by setting the first drive mechanism 101, which can be set as a servo motor or servo motor to control the feed distance of the transmission shaft, so that the feed distance is equal to the distance between two adjacent first clearance holes 3041.

[0035] In one embodiment, such as Figure 5 As shown, the translation assembly 300 also includes a first fixed seat 302, a second fixed seat 304, and a second guide shaft 305. The first fixed seat 302 is fixedly mounted on the lifting platform 203. A preset distance is provided between the second fixed seat 304 and the first fixed seat 302. The second fixed seat 304 is fixed on the lifting platform 203 and is positioned parallel to the first fixed seat 302. The second guide shaft 305 is provided between the first fixed seat 302 and the second fixed seat 304. The translation platform 303 is mounted on the second guide shaft 305 and can reciprocate along the axial direction of the second guide shaft 305. Specifically, the first fixed seat 302 and the second fixed seat 304 are vertically mounted on the lifting platform 203. Three second guide shafts 305 are arranged parallel between the first fixed seat 302 and the second fixed seat 304. The translation platform 303 has three matching through holes, and the second guide shafts 305 are inserted into these through holes, allowing the translation platform 303 to reciprocate axially along the second guide shafts 305. A second drive mechanism 301 is provided on the outer side of the first fixed seat 302. The first fixed seat 302 has a through hole, and the output end of the second drive mechanism 301 passes through the through hole and is fixedly connected to the translation platform 303. The second drive mechanism 301 drives the translation platform 303 to reciprocate along the second guide shafts 305. In this embodiment, the second drive mechanism 301 is the same as the first drive mechanism 101, preferably a cylinder. Optionally, the second drive mechanism 301 can also be a servo motor or a steering wheel, etc.

[0036] In one embodiment, such as Figure 4As shown, in order to further position the injection molded parts and prevent them from falling off during separation and cutting, a locking clamp 3033 is provided on the translation stage 303, and a locking groove 3043 is provided on the second fixed seat 304. The position of the locking clamp 3033 corresponds to the position of the locking groove 3043. When the translation stage 303 moves to the second fixed seat 304, the space formed by the translation stage 303 and the locking clamp 3033 and the locking groove 3043 is adapted to the shape of the injection molded parts, thus preventing the injection molded parts from moving during cutting. Specifically, the locking clamp 3033 is positioned corresponding to the fixed bracket 3032. The locking clamp 3033 has a clamping surface, namely the second end face 30331 in this application. The second end face has a groove to allow space for the injection molded part. When the translation stage 303 abuts against the second fixed seat 304, the second end face 30331 abuts the injection molded part against the locking groove 3043, and the injection molded part cannot move. This facilitates the separation of the injection molded part from the sprue and the laser engraving of the injection molded part after separation.

[0037] In one embodiment, the device further includes a laser engraving device, which is existing technology and will not be described in detail. The laser port of the laser engraving device is located at the uppermost first clearance hole 3041 on the second fixed base 304. The position of the laser port of the laser engraving device corresponds to the position of the uppermost first clearance hole 3041 on the second fixed base 304, so that only the lifting platform 203 needs to be adjusted to engrave the injection molded parts located at the first clearance hole 3041 below the second fixed base 304. In this embodiment, there are two first clearance holes 3041. Optionally, the number of first clearance holes 3041 can be greater than two, or three, five, etc. The laser port position needs to be correspondingly set at the uppermost or lowermost first clearance hole 3041 of the second fixed base 304, and the multiple first clearance holes 3041 are arranged in a straight line, with the arrangement direction of the multiple first clearance holes 3041 consistent with the lifting direction of the lifting platform 203, to achieve the automated engraving and separation requirements of multiple injection molded parts.

[0038] In one embodiment, such as Figure 9-10 As shown, the fixed bracket 3032 is connected to the translation stage 303 via the first connecting shaft 3031. The first connecting shaft 3031 can move relative to the translation stage 303 along its own axial direction. The axial movement of the first connecting shaft 3031 drives the fixed bracket 3032 fixed at the free end of the first connecting shaft 3031 to move, thereby causing the cutter 3034 fixed on the translation stage 303 to have a relative displacement with respect to the fixed bracket 3032, thereby separating and cutting the injection molded part from the sprue.

[0039] Specifically, the first connecting shaft 3031 includes a third guide shaft 30313 and a support frame 30314. The support frame 30314 has a through hole adapted to the third guide shaft 30313. The third guide shaft 30313 is fixed inside the translation stage 303. A first spring 30312 is wound around the outside of the third guide shaft 30313. One end of the first spring 30312 abuts against the support frame 30314, and the other end abuts against the inner wall of the translation stage 303. By moving the support frame 30314 axially along the third guide shaft 30313, the first spring 30312 is compressed until the injection molded part on the fixed bracket 3032 abuts against the inner wall of the locking groove 3043. By movably setting the fixed bracket 3032 on the translation stage 303, the position of the injection molded part relative to the translation stage 303 can be adjusted to better fit the injection molded part against the inner wall of the locking groove 3043.

[0040] Furthermore, similarly, such as Figure 7-8 As shown, the locking clamp 3033 is movably mounted on the translation stage 303, and the locking clamp 3033 can reciprocate along the second guide shaft 305.

[0041] Specifically, the locking clip 3033 includes a fourth guide shaft 30332 and a locking slider 30333. The locking slider 30333 has a through hole adapted to the fourth guide shaft 30332, allowing it to move axially along the fourth guide shaft 30332. In this embodiment, the locking clip 3033 and the locking slider 30333 are integrally formed, and the fourth guide shaft 30332 is parallel to the second guide shaft 305. A second spring 30334 is wound around the outside of the fourth guide shaft 30332. When the locking clip 3033 abuts against the surface of the injection-molded part and fixes the part into the locking groove 3043, the translation stage 303 has not yet abutted against the second fixing seat 304. The locking slider 30333 moves to compress the second spring 30334 until the translation stage 303 abuts against the second fixing seat 304, at which point the fixing of the injection-molded part has reached a stable state. At the same time, the cutter 3034 located on the translation stage 303 cuts and separates the injection molded part from the sprue, and fixes the injection molded part at the first clearance hole 3041, so that the next engraving process can be carried out after separation.

[0042] In one embodiment, such as Figure 6As shown, to avoid requiring more space between the translation stage 303 and the second fixed seat 304, a first clearance groove 3042 is provided on the second fixed seat 304. Specifically, the size of the first clearance groove 3042 matches the shape of the support frame. When the support frame of the first connecting shaft 3031 abuts against the inner wall of the first clearance groove, the translation stage 303 will continue to move until it reaches the predetermined position. At this time, the injection molded part is tightly attached to the inner wall of the locking groove 3043, and the first spring 30312 is in a compressed state, providing a certain elastic support so that the injection molded part can better fit and not loosen.

[0043] In one embodiment, to facilitate the robot arm's installation and positioning of injection-molded parts, as well as the gripping and sorting of injection-molded parts after separation and engraving, the stroke of the translation stage 303 is shortened, and the distance between the first fixed seat 302 and the second fixed seat 304 is reduced. When the translation stage 303 is in its initial position, a first preset distance 308 is provided between the central axis of the fixed bracket 3032 and the third end face 3035 of the translation stage 303 near the second fixed seat 304. A second preset distance 307 is provided between the second end face 30331 of the locking clamp 303 located between the translation stage 303 and the second fixed seat 304 and the third end face 3035 of the translation stage 303 near the second fixed seat 304. The first preset distance 308 is greater than the second preset distance 307. Specifically, the larger the distance between the central axis of the fixed bracket 3032 and the third end face 3035 on the translation stage 303, the easier it is for the robot arm to grip and install / remove the injection-molded parts. The smaller the distance between the second end face 30331 and the third end face 3035, the greater the clearance for the injection molded parts, which facilitates the robot arm to grip, install, position, and sort the injection molded parts after separation and engraving.

[0044] In one embodiment, the present invention also provides a cutting and engraving method for separating injection molded parts from sprue gates. A robotic arm grips the injection molded part and sprue gate and places them into a fixed bracket 3032 for positioning and fixing. At the same time, a translation stage 303 moves, causing the injection molded part and sprue gate to move and abut against the locking groove 3043 of the second fixed seat 304. Simultaneously, the fixed bracket 3032 and the locking clamp 3033 are adjusted for extension and retraction, and the translation stage 303 abuts against the second fixed seat 304. At this time, the cutter 3034 cuts and separates the injection molded part from the sprue gate. After cutting and separation, the laser nozzle of the laser engraving equipment is aligned with the first clearance hole 3041 at the upper position to engrave the lettering on the upper injection molded part. After the first injection molded part is engraved, the lifting platform 203 rises, aligning the laser nozzle of the laser engraving equipment with the first clearance hole 3041 at the lower position to engrave the lettering on the second injection molded part. After the engraving is completed, the lifting platform 203 returns to the initial position, and the robotic arm picks up the separated sprue and transports it to the sprue part storage area. Then, the robotic arm picks up the separated injection molded part again and transports it to the injection molded part storage area. Thus, a complete separation and engraving process is completed.

[0045] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention. These improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A fully automatic separation device for injection molded parts and sprue gates, characterized in that, include: Base; A translation component is mounted on the base. The translation component includes a first fixed seat, a second fixed seat, and a translation stage. The first fixed seat and the second fixed seat are spaced apart on the base. The translation stage is movably mounted between the first fixed seat and the second fixed seat. The translation component is provided with multiple cutters for dividing injection molded parts and multiple fixed brackets for fixing injection molded parts. The multiple fixed brackets can extend and retract along the moving direction of the translation stage. The translation component further includes a second guide shaft, which is disposed between and connects the first fixed base and the second fixed base, and the translation stage is movably disposed on the second guide shaft; The translation platform is provided with a first connecting shaft that moves along its own axis. The first connecting shaft is arranged parallel to the second guide shaft, and the fixed bracket is arranged at the free end of the first connecting shaft. The translation platform is provided with a locking clamp, and the second fixed seat is provided with a locking groove. The locking clamp and the locking groove are positioned opposite each other. When the translation platform abuts against the second fixed seat, the space formed by the locking clamp and the locking groove is adapted to the shape of the injection molded part. The locking clamp is movably mounted on the translation platform. The locking clamp includes a fourth guide shaft fixed on the translation platform, a second spring sleeved on the fourth guide shaft, and a locking slider that can move relative to the fourth guide shaft axially. When the locking slider moves away from the second fixed seat along the fourth guide shaft axially, the second spring is in a compressed state. The first connecting shaft includes a third guide shaft and a support frame. The support frame has a through hole adapted to the third guide shaft. The third guide shaft is fixed inside the translation stage. A first spring is wound around the outside of the third guide shaft. One end of the first spring abuts against the support frame, and the other end of the first spring abuts against the inner wall of the translation stage.

2. The fully automatic separation device for injection molded parts and sprue gates according to claim 1, characterized in that, The second fixed seat is provided with a first clearance groove. When one end of the first connecting shaft abuts against the inner wall of the first clearance groove and is compressed to a preset position, the injection molded part is tightly attached to the locking groove.

3. The fully automated separation device for injection molded parts and sprue gates according to claim 1, characterized in that, When the translation stage is in its initial position, the first preset distance between the central axis of the fixed bracket and the translation stage is greater than the second preset distance between the second end face of the locking clamp located between the translation stage and the second fixed seat and the translation stage.

4. A fully automatic separation device for injection molded parts and sprue gates according to any one of claims 1-3, characterized in that, It also includes a laser engraving device disposed on the outside of the second fixed base. The second fixed base is provided with a plurality of first clearance holes corresponding to the positions of a plurality of fixed brackets. In the initial state, the laser port of the laser engraving device corresponds to the position of the first clearance hole located at the uppermost end of the second fixed base.

5. The fully automatic separation device for injection molded parts and sprue gates according to claim 4, characterized in that, It also includes a lifting assembly disposed on the base. The lifting assembly includes a first guide shaft and a lifting platform. The translation component is disposed on the lifting platform. The first guide shaft is fixed to the base. The lifting platform is movably disposed on the first guide shaft. The lifting direction of the lifting platform is consistent with the arrangement direction of the plurality of first clearance holes.

6. The fully automatic separation device for injection molded parts and sprue gates according to claim 5, characterized in that, The first guide shaft has a first limiting block at one end away from the base. When the lifting platform abuts against the first limiting block, the laser engraving device completes the engraving.

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