An automatic material pulling device for an injection molding machine

Abstract

The present invention relates to the technical field of machining equipment, in particular to an automatic material pulling device for an injection molding machine, which comprises a main body component; an adjusting component arranged on the inner wall of the main body component, the adjusting component includes a bottom plate, a material pulling component arranged at the end of the bottom plate, and an adjusting component arranged on the outer wall of the bottom plate; by setting a pulling structure to cooperate with the material pulling component, after the material tape is injection molded, the material tape can be effectively separated from the mold and pulled, and at the same time, by cooperating with the adjusting component, the position of the material tape can be finely adjusted to align the material tape with the mold, improving the product quality of injection molding, realizing automatic material pulling and calibration of the material tape after injection molding, effectively reducing manual operation, improving production efficiency, ensuring the positioning accuracy of the material tape, and avoiding production errors caused by human factors.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing equipment, in particular to an automatic material pulling device of an injection molding machine. Background Art

[0002] Traditional injection molding machines require manual labor to remove the product from the mold after the mold is opened. This is not only labor-intensive, but also poses safety hazards such as burns. In addition, during the material pulling process, traditional injection molding machines are prone to product position deviation due to unreasonable design of the positioning mechanism, affecting the smooth progress of subsequent processes.

[0003] The Chinese patent application with authorization announcement number CN209240358U discloses an automatic material pulling mechanism for injection molding. After the material strip completes the injection molding process, the mechanism uses an ejection assembly to eject the material strip limited by a pin, and then the material pulling device pulls and moves the completed material strip to facilitate the next process, which can save a lot of manual labor and improve work efficiency.

[0004] However, this technical solution still has some problems: although it facilitates the pulling and displacement of the material strip, the material strip is not positioned during the injection molding process. During the injection molding, it is easy for the inaccurate position of the material strip to cause the injection molding to fail, affecting the progress of the next step. Summary of the invention

[0005] In view of the above problems in the prior art, the present invention is proposed.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: an automatic material pulling device for an injection molding machine, comprising a main body component;

[0007] An adjusting component is arranged on the inner wall of the main component, and the adjusting component includes a base plate, a pulling component arranged on the end of the base plate, and an adjusting component arranged on the outer wall of the base plate. A pulling structure is installed on the inner wall of the adjusting component. The pulling structure is used to drive the material strip to separate it from the inner wall of the mold arranged on the surface of the base plate and align the material strip with the mold at the same time. The pulling component is used to drive the material strip to move on the mold surface, and the adjusting component is used to push the material strip to align it with the mold.

[0008] As a preferred solution of the automatic material pulling device of the injection molding machine described in the present invention, wherein: the pulling structure includes a pushing cylinder arranged on the outer wall of the base plate, the surface of the pushing cylinder is connected with a slide, the slide is slidably matched with a guide rail installed on the surface of the base plate, a moving block is arranged at the end of the slide and a roller is arranged on the outer wall of the moving block, and the roller is located on the outer wall of the material belt and is used to drive the material belt to leave the surface of the base plate.

[0009] As a preferred solution of the automatic material pulling device of the injection molding machine described in the present invention, wherein: the outer wall of the movable block is also provided with a fixed block, the inner wall of the fixed block is movably provided with a rotating rod, the end of the rotating rod is provided with a sliding column and the other end away from the sliding column is provided with a roller, the outer wall of the sliding column is sleeved with a pushing block and the inner wall of the pushing block is provided with a threaded groove, the end of the sliding column extends to the inner wall of the threaded groove and slidably cooperates with it, a cylinder is also provided inside the fixed block and an inclined block is provided at the end of the cylinder, the pushing block moves at the end of the rotating rod and squeezes the inclined block, drives the cylinder downward and squeezes the first elastic member provided at the end of the inclined block to deform it.

[0010] As a preferred solution of the automatic material pulling device of the injection molding machine described in the present invention, wherein: a mounting plate is fixed to the outer wall of the base plate, a guide plate is provided on the end face of the mounting plate and a guide groove is opened on the end face of the guide plate, the roller slides on the inner wall of the guide groove, a rack is provided on the inner wall of the guide groove and the rack is meshed with the gear on the outer wall of the roller.

[0011] As a preferred solution of the automatic material pulling device of the injection molding machine described in the present invention, wherein: a branch plate is hinged on the inner wall of the guide groove, one end of the branch plate is located in a notch opened on the end face of the guide groove, and the roller passes through the branch plate and enters the upper end of the guide groove.

[0012] As a preferred solution of the automatic material pulling device of the injection molding machine described in the present invention, wherein: a limit rod is provided on the inner wall of the adjusting component, a movable plate is movably provided on the outer wall of the limit rod, a second elastic member is sleeved on the end of the limit rod and the second elastic member is located at the end of the movable plate, an adjusting rod is provided in an array on the end face of the movable plate and the adjusting rod is opposite to a positioning column fixed on the surface of the bottom plate, and the positioning column is fixed on the outer wall of the mold opened on the surface of the bottom plate.

[0013] As a preferred solution of the automatic material pulling device of the injection molding machine described in the present invention, the end face of the mounting plate is provided with an opening, the end of the movable plate extends to the inner wall of the opening and slidably cooperates therewith, and a push column is provided at the end of the movable plate, and the push column extends to the inside of the opening.

[0014] As a preferred solution of the automatic material pulling device of the injection molding machine described in the present invention, a driving motor is fixed to the outer wall of the mounting plate, an oblique ring is arranged at the axis of the driving motor, the end of the pushing column is in contact with the end face of the oblique ring, and the driving column is driven to move when the oblique ring rotates.

[0015] As a preferred solution of the automatic material pulling device of the injection molding machine of the present invention, the material pulling component includes a moving table, a strip plate is fixed to the end surface of the moving table, and a cylinder is arranged on the end surface of the strip plate.

[0016] As a preferred embodiment of the automatic material pulling device of the injection molding machine according to the present invention, the following is provided: a servo motor is disposed inside the moving table, an internal gear is disposed at the axis of the servo motor, pawls are disposed on the outer wall of the internal gear, an external gear is sleeved on the outer wall of the internal gear, and ratchets are disposed on the inner wall of the external gear. The pawls are engaged with the ratchets to limit the external gear, and a pulling column is disposed on the outer wall of the external gear for pulling the material belt.

[0017] Advantages of the present invention: By providing a pulling structure in cooperation with a material pulling component, after the material belt is injection molded, the material belt can be effectively separated from the mold and pulled, and at the same time, in cooperation with an adjusting component, the position of the material belt can be finely adjusted to align the material belt with the mold, improving the quality of the injection molded product, realizing automatic material pulling and calibration of the material belt after injection molding, effectively reducing manual operation, improving production efficiency, and at the same time ensuring the positioning accuracy of the material belt and avoiding production errors caused by human factors. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0019] Figure 1 It is a schematic diagram of the overall structure of an automatic material pulling device of an injection molding machine according to the present invention;

[0020] Figure 2 It is a schematic diagram of the overall structure of the adjusting assembly in the present invention;

[0021] Figure 3 It is a schematic diagram of the structure of the adjusting component and the bottom plate in the present invention;

[0022] Figure 4 It is a schematic diagram of the internal structure of the adjusting component in the present invention;

[0023] Figure 5 It is a schematic diagram of the connection relationship between the pushing cylinder and the sliding table in the present invention;

[0024] Figure 6 It is a side view of the adjusting component in the present invention;

[0025] Figure 7 For the present invention Figure 6 The enlarged schematic diagram of the structure at A;

[0026] Figure 8 It is a schematic diagram of the structure of the guiding plate in the present invention;

[0027] Figure 9 For the present invention Figure 8 Schematic enlarged view of the structure at position B in the present invention;

[0028] Figure 10 Side sectional view of the mobile station in the present invention;

[0029] Figure 11 Schematic diagram of the positional relationship between the internal gear and the external gear in the present invention.

[0030] Reference numerals: 100, main body assembly;

[0031] 200, adjustment assembly; 201, bottom plate; 2011, mold; 2012, positioning post; 202, material pulling component; 2021, mobile station; 2022, strip board; 2023, cylinder; 2024, servo motor; 2025, internal gear; 2026, pawl; 2027, external gear; 2028, ratchet; 2029, pulling column; 203, adjustment component; 2031, limiting rod; 2032, movable plate; 2033, second elastic member; 2034, adjustment rod; 2035, pushing column; 204, mounting plate; 2041, opening; 2042, guiding plate; 2043, driving motor; 2044, inclined ring; 205, guide rail; 2051, pushing cylinder; 2052, sliding table; 2053, moving block; 2054, roller; 2055, fixed block; 206, rotating rod; 2061, sliding column; 2062, roller; 2063, pushing block; 2064, thread groove; 2065, cylinder; 2066, inclined block; 2067, first elastic member; 207, guiding groove; 2071, rack; 2072, shunt plate; 2073, notch. Detailed implementation manners

[0032] To make the above objects, features and advantages of the present invention more apparent and understandable, the following will describe the detailed implementation manners of the present invention in conjunction with the accompanying drawings of the specification.

[0033] In the following description, many specific details are set forth to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0034] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure or characteristic that can be included in at least one implementation manner of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that excludes other embodiments.

[0035] Embodiment 1

[0036] This is the first embodiment of the present invention, which provides an automatic material pulling device for an injection molding machine.

[0037] Specifically, referring to Figure 1 and Figure 2 , an automatic material pulling device for an injection molding machine includes: a main body assembly 100;

[0038] An adjusting assembly 200 is provided on the inner wall of the main body assembly 100. The adjusting assembly 200 includes a bottom plate 201, a material pulling member 202 provided at the end of the bottom plate 201, and an adjusting member 203 provided on the outer wall of the bottom plate 201. A pulling structure is installed on the inner wall of the adjusting member 203. The pulling structure is used to drive the material tape to disengage from the inner wall of the mold 2011 provided on the surface of the bottom plate 201 and align the material tape with the mold 2011 at the same time. The material pulling member 202 is used to drive the material tape to move on the surface of the mold 2011, and the adjusting member 203 is used to push the material tape to further align it with the mold 2011.

[0039] Among them, the material pulling members 202 are symmetrically arranged at the upper and lower ends of the bottom plate 201. The material pulling members 202 can be moved at both ends of the bottom plate 201 by being pushed by cylinders. The adjusting members 203 are fixed at both sides of the bottom plate 201. The material tape is pulled by the material pulling members 202 to move on the surface of the bottom plate 201. The position of the material tape and the mold 2011 is adjusted by the pulling structure. After that, after the position of the material tape and the mold 2011 is further calibrated by the adjusting member 203, the material tape is brought close to the mold 2011. Then, the bottom plate 201 is separated from the injection molding component outside the main body assembly 100, and the material pulling members 202 at the upper and lower ends drive the injection-molded material tape out of the mold 2011 at the end of the bottom plate 201, so that it disengages from the inside of the mold 2011. Then, the pulling structure further adjusts the material tape outwards to completely disengage from the mold 2011. After that, the material pulling member 202 takes the injection-molded material tape away from the bottom plate 201, and the material tape to be processed is pulled to the surface of the bottom plate 201 for the next round of injection molding work.

[0040] Embodiment 2

[0041] This is the second embodiment of the present invention, which is implemented based on the previous embodiment.

[0042] Specifically, referring to Figure 5 , the pulling structure includes a pushing cylinder 2051 provided on the outer wall of the bottom plate 201. A sliding table 2052 is connected to the surface of the pushing cylinder 2051. The sliding table 2052 is slidably matched with a guide rail 205 installed on the surface of the bottom plate 201. A moving block 2053 is provided at the end of the sliding table 2052, and a roller 2054 is provided on the outer wall of the moving block 2053. The roller 2054 is located on the outer wall of the material tape and is used to drive the material tape to disengage from the surface of the bottom plate 201.

[0043] The guide rails 205 are symmetrically fixed on the outer walls of the bottom plate 201 on both sides, and the push cylinder 2051 pushes the slide 2052 to slide on the surface of the guide rails 205. The surface of the slide 2052 is installed with a moving block 2053. One side of the moving block 2053 is divided into two parts, such as Figure 5 As shown, a portion of the outer wall is installed with a roller 2054, and the roller 2054 is attached to the bottom of the edge of the material belt. As the slide 2052 moves, the roller 2054 moves under the material belt, lifts the material belt upward, and picks up the injection molded workpiece from the mold 2011, which is convenient for the next step of operation.

[0044] Preferably, refer to Figure 6 and Figure 7 A fixed block 2055 is also provided on the outer wall of the movable block 2053, and a rotating rod 206 is movably provided on the inner wall of the fixed block 2055. A sliding column 2061 is provided on the end of the rotating rod 206, and a roller 2062 is provided on the other end away from the sliding column 2061. A pushing block 2063 is sleeved on the outer wall of the sliding column 2061, and a thread groove 2064 is provided on the inner wall of the pushing block 2063. The end of the sliding column 2061 extends to the inner wall of the thread groove 2064 and slides with it. A cylinder 2065 is also provided inside the fixed block 2055, and an inclined block 2066 is provided on the end of the cylinder 2065. The pushing block 2063 moves at the end of the rotating rod 206 and squeezes the inclined block 2066, driving the cylinder 2065 downward and squeezing the first elastic member 2067 to deform it.

[0045] Among them, the fixed block 2055 is on one side of the moving block 2053 and is an integral part with the moving block 2053. The rotating rod 206 is installed inside the fixed block 2055. A sliding column 2061 is provided on the outer wall of the rotating rod 206 inside the fixed block 2055, and the top of the other part is located on the outside of the moving block 2053, and a roller 2062 is fixed on the surface, and a gear is also fixed on the outer surface of the roller 2062.

[0046] A pushing block 2063 is installed inside the fixed block 2055. The pushing block 2063 is square in shape as a whole, moves inside the fixed block 2055 and cannot rotate. A threaded groove 2064 is provided on the inner wall of the pushing block 2063. The roller 2062 rotates under the influence of external force, driving the rotating rod 206 to rotate inside the fixed block 2055. When the sliding column 2061 at the other end rotates with the rotating rod 206, the pushing block 2063 moves inside the fixed block 2055, squeezing the inclined block 2066 at the end of the fixed block 2055, pressing the inclined block 2066 downward, and at this time, the first elastic member 2067 below the inclined block 2066 is deformed, and at the same time, the cylinder 2065 moves downward and exposes the end to the bottom of the fixed block 2055.

[0047] Reference Figures 2 to 4 , Figures 7 to 9, an installation plate 204 is fixed to the outer wall of the bottom plate 201. A guiding plate 2042 is arranged on the end face of the installation plate 204, and a guiding groove 207 is formed on the end face of the guiding plate 2042. A roller 2062 slides on the inner wall of the guiding groove 207. A rack 2071 is arranged on the inner wall of the guiding groove 207 and meshes with the gear on the outer wall of the roller 2062.

[0048] Among them, the installation plate 204 is fixed on both sides of the bottom plate 201, and the guiding plate 2042 is fixed on the surface. The guiding plate 2042 is on the side of the guide rail 205, and a guiding groove 207 is formed on the surface of the guiding plate 2042. As Figure 8 shown, the guiding groove 207 is divided into upper and lower layers and is connected. The installation plate 204 is close to the guide rail 205. The roller 2062 is fixed to the rotating rod 206 outside the moving block 2053. Inside the guiding groove 207, when the pushing cylinder 2051 pushes the sliding table 2052 to move, the roller 2062 slides inside the guiding groove 207. At the same time, at the starting end of the guiding groove 207, a rack 2071 is arranged, and the rack 2071 meshes with the small gear on the surface of the roller 2062. When the roller 2062 passes through the starting end of the guiding groove 207, it rotates, driving the rotating rod 206 to rotate.

[0049] Refer to Figure 8 , Figure 9 , a shunt plate 2072 is hinged to the inner wall of the guiding groove 207. One end of the shunt plate 2072 is located in a notch 2073 formed on the end face of the guiding groove 207. The roller 2062 enters the upper part of the guiding groove 207 after passing through the shunt plate 2072.

[0050] Among them, the shunt plate 2072 is hinged inside the guiding groove 207, at the place where it starts to be layered at the starting end. One end of the shunt plate 2072 is located inside the notch 2073 below the guiding groove 207. When the pushing cylinder 2051 pushes the sliding table 2052 to slide on the guide rail 205, the roller 2062 slides inside the guiding groove 207. When the roller 2062 passes through the shunt plate 2072, it will enter the upper-layer guiding groove 207 after passing through the shunt plate 2072. At this time, the moving block 2053 is above the sliding table 2052 and rises a certain distance. As the moving block 2053 moves upward, the roller 2054 rises together. When the roller 2054 rises, it will lift the current strip upward.

[0051] When the roller 2062 reaches the other end of the guiding groove 207, it will fall into the lower-layer guiding groove 207. At this time, the pushing cylinder 2051 pushes the sliding table 2052 to slide from one end of the guide rail 205 to the other end. At this time, the strip that has been injection-molded inside the mold 2011 is lifted upward by the roller 2054, and all the strips on the surface of the bottom plate 201 are separated from the mold 2011, facilitating the next operation.

[0052] Meanwhile, the roller 2062 falls into the lower guiding groove 207 and moves back as the pushing cylinder 2051 retracts backward. When passing by the shunt plate 2072, the shunt plate 2072 is flipped with its hinge point as the fulcrum and continues to move, enters the starting end of the guiding groove 207, and engages with the rack 2071.

[0053] The engagement of the roller 2062 with the rack 2071 drives the rotating rod 206 to rotate inside the fixed block 2055. The sliding column 2061 at the top of the rotating rod 206 rotates inside the threaded groove 2064. Through the cooperation of the threaded groove 2064 and the sliding column 2061, the pushing block 2063 moves forward inside the fixed block 2055.

[0054] Referring to Figure 3 and Figure 4 , a limiting rod 2031 is provided on the inner wall of the adjusting member 203. An activity plate 2032 is movably arranged on the outer wall of the limiting rod 2031. A second elastic member 2033 is sleeved at the end of the limiting rod 2031 and the second elastic member 2033 is located at the end of the activity plate 2032. Adjusting rods 2034 are arranged in an array on the end face of the activity plate 2032 and the adjusting rods 2034 are opposite to the positioning columns 2012 fixed on the surface of the bottom plate 201. The positioning columns 2012 are fixed on the outer wall of the mold 2011 opened on the surface of the bottom plate 201.

[0055] Among them, a receiving cavity is opened inside the adjusting member 203, and two limiting rods 2031 are fixed. A second elastic member 2033 is sleeved on the surface of each of the limiting rods 2031. The second elastic member 2033 is between the inner wall of the receiving cavity and the activity plate 2032. The activity plate 2032 passes through the limiting rod 2031 and moves on the surface of the limiting rod 2031. As Figure 3 and Figure 4 shown, the adjusting rods 2034 on the surface of the activity plate 2032 are opposite to the positions of the positioning columns 2012 on the surface of the bottom plate 201. When the activity plate 2032 approaches the bottom plate 201, the adjusting rods 2034 are in contact with the positioning columns 2012.

[0056] An opening 2041 is opened on the end face of the mounting plate 204. The end of the activity plate 2032 extends to the inner wall of the opening 2041 and is in sliding fit with it. A pushing column 2035 is provided at the end of the activity plate 2032, and the pushing column 2035 extends into the opening 2041.

[0057] Among them, an opening 2041 is opened on the surface of the mounting plate 204. The lower part of the activity plate 2032 moves in the opening 2041, and the lower part of the limiting rod 2031 also passes through the surface of the mounting plate 204. Affected by the elastic force, the second elastic member 2033 on the surface of the limiting rod 2031 pushes the activity plate 2032 towards the mounting plate 204 and pushes the lower end of the activity plate 2032 towards the opening 2041.

[0058] Preferably, a driving motor 2043 is fixed to the outer wall of the mounting plate 204. An inclined ring 2044 is provided at the axis of the driving motor 2043. The end of the push column 2035 is in contact with the end face of the inclined ring 2044. When the inclined ring 2044 rotates, it drives the push column 2035 to move.

[0059] Among them, the push column 2035 fixed to the lower surface of the movable plate 2032 fits with the inclined ring 2044 on the surface of the mounting plate 204. The inclined ring 2044 is driven by the driving motor 2043 to rotate. Since the surface of the inclined ring 2044 is inclined, when the inclined ring 2044 rotates, when the high position of the inclined ring 2044 contacts the surface of the push column 2035, the push column 2035 drives the movable plate 2032 to move upward in the accommodating cavity of the adjusting member 203, squeezing the second elastic member 2033. When the low position of the inclined ring 2044 contacts the surface of the push column 2035, the second elastic member 2033 loses the extrusion and pushes the movable plate 2032 towards the mounting plate 204. At this time, the adjusting rod 2034 on the surface of the movable plate 2032 fits with the positioning column 2012 on the surface of the bottom plate 201.

[0060] In summary, during use, when a mold closing and injection molding operation is just completed, at this time, the injection molded strip is still inside the mold 2011. First, move the stripping members 202 at the upper and lower ends of the bottom plate 201 outward to initially separate the injection molded strip from the mold 2011. Then, the pushing cylinder 2051 pushes the sliding table 2052 to move along the guide rail 205. The rotating rod 206 in the moving block 2053 moves along with the sliding table 2052. At the same time, the roller 2062 at the end of the rotating rod 206 slides along the guide groove 207 on the inner wall of the guide plate 2042.

[0061] The roller 2062 slides inside the guide groove 207. When passing through the shunt plate 2072, it enters the upper layer of the guide groove 207 through the shunt plate 2072. At this time, the moving block 2053 rises a certain height on the surface of the sliding table 2052. At this time, the roller 2054 on the side of the moving block 2053 also picks up the strip outward, removes the round hole at the edge of the strip from the positioning column 2012. At this time, this strip is completely separated from the mold 2011. As the sliding table 2052 moves, all the strips in the mold 2011 are separated. Then, the stripping member 202 pulls away the injection molded strip. At this time, the non-injected strip replaces the position of the original strip.

[0062] After that, the rear roller 2062 falls from the upper layer of the guiding groove 207 into the lower layer. At this time, the fixing block 2055 at the front end of the moving block 2053 adheres to the surface of the strip and presses it down a little, making the strip close to the positioning post 2012. Then, the pushing cylinder 2051 pulls the sliding table 2052 back. The fixing block 2055 moves back with the sliding table 2052 and presses down on the strip. When the roller 2062 meshes with the rack 2071, the rotating rod 206 rotates, and the pushing block 2063 at the other end of the rotating rod 206 moves and squeezes the inclined block 2066, causing the cylinder 2065 to protrude downward. At this time, the cylinder 2065 adheres to the surface of the strip, and when it continues to move backward with the sliding table 2052, it moves along the surface of the strip until it engages with the circular hole on the surface of the strip. When the roller 2062 is at the end position of the guiding groove 207, the cylinder 2065 is just located at the position of the circular hole on the surface of the strip that is not opposite to the positioning post 2012 after the strip is engaged with the mold 2011. When the cylinder 2065 moves along the surface of the strip, if the position of the strip deviates from the mold 2011 at this time and the circular hole does not align with the positioning post 2012, after the cylinder 2065 engages with the circular hole, it will also pull the strip backward a short distance until it stops after the cylinder 2065 engages with the circular hole on the surface of the strip. At this time, the position of the strip is just opposite to the positioning post 2012. Then, the driving motor 2043 on the side of the mounting plate 204 rotates, and through the rotation of the inclined ring 2044, the movable plate 2032 is moved toward the bottom plate 201. At this time, the adjusting rod 2034 is in contact with the positioning post 2012. The diameter of the adjusting rod 2034 is smaller than that of the positioning post 2012, and the adjusting rod 2034 is more likely to pass through the circular hole. During the contact process, the adjusting rod 2034 first passes through the circular hole on the side of the strip and then contacts the positioning post 2012.

[0063] After the strip is initially position - adjusted by pulling it with the cylinder 2065, the adjusting rod 2034 on the surface of the movable plate 2032 passes through the circular hole of the strip and contacts the positioning post 2012. Then, during the mold - closing and injection - molding process, the inner wall of the circular hole of the strip slides along the outer wall of the adjusting rod 2034 to the outer wall of the positioning post 2012, realizing the position calibration of the strip and the mold 2011.

[0064] Embodiment 3

[0065] This is the third embodiment of the present invention, which is implemented based on the previous embodiment.

[0066] Specifically, referring to Figure 10 , the material - pulling component 202 includes a moving table 2021. A strip - shaped plate 2022 is fixed to the end face of the moving table 2021, and a cylinder 2023 is arranged on the end face of the strip - shaped plate 2022.

[0067] Among them, a strip board 2022 is installed on the surface of the mobile station 2021, and a cylinder 2023 is arranged on the surface of the strip board 2022. The cylinder 2023 is used for transporting the tape. When the tape pulling component 202 drives the tape to move, the tape is transported along the cylinder 2023.

[0068] Preferably, referring to Figure 11 , a servo motor 2024 is arranged inside the mobile station 2021. An internal gear 2025 is arranged at the axis of the servo motor 2024. Pawls 2026 are arranged on the outer wall of the internal gear 2025. An external gear 2027 is sleeved on the outer wall of the internal gear 2025, and a ratchet wheel 2028 is arranged on the inner wall of the external gear 2027. The pawl 2026 is engaged with the ratchet wheel 2028 to limit the external gear 2027. A pulling column 2029 is arranged on the outer wall of the external gear 2027 for pulling the tape.

[0069] Among them, the servo motor 2024 is installed inside the mobile station 2021, the external gear 2027 is sleeved outside the internal gear 2025, and they are connected by the ratchet wheel 2028 and the pawl 2026. As Figure 11 shown, when it is necessary to pull the tape, the pawl 2026 on the surface of the internal gear 2025 is engaged into the inside of the ratchet wheel 2028. The internal gear 2025 drives the external gear 2027 to rotate. The pulling column 2029 on the surface of the external gear 2027 corresponds to the round hole on the surface of the tape, pulls the tape after injection molding to move, and pulls the tape to be processed to the surface of the mold 2011 to prepare for the next round of mold closing and injection molding work. During the process of the cylinder 2065 pulling the tape to adjust the position, when the external gear 2027 rotates, the pawl 2026 on the surface of the internal gear 2025 is pressed down and is not engaged with the ratchet wheel 2028.

[0070] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not restrictive. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. An automatic material pulling device for an injection molding machine, characterized in that: include: Main body assembly (100); An adjusting component (200) is arranged on the inner wall of the main body component (100), the adjusting component (200) comprising a bottom plate (201), a material pulling component (202) arranged at the end of the bottom plate (201), and an adjusting component (203) arranged on the outer wall of the bottom plate (201), a pulling structure being installed on the inner wall of the adjusting component (203), the pulling structure being used to drive the material belt to separate from the inner wall of the mold (211) arranged on the surface of the bottom plate (201) and align the material belt with the mold (211), the material pulling component (202) being used to drive the material belt to move on the surface of the mold (211), and the adjusting component (203) being used to push the material belt to align it with the mold (211); The pulling structure comprises a pushing cylinder (2051) arranged on the outer wall of the bottom plate (201); a slide (2052) is connected to the surface of the pushing cylinder (2051); the slide (2052) is slidably matched with a guide rail (205) installed on the surface of the bottom plate (201); a moving block (2053) is arranged at the end of the slide (2052); and a roller (2054) is arranged on the outer wall of the moving block (2053); the roller (2054) is located on the outer wall of the material belt and is used to drive the material belt to leave the surface of the bottom plate (201); The outer wall of the movable block (2053) is further provided with a fixed block (2055), the inner wall of the fixed block (2055) is movably provided with a rotating rod (206), the end of the rotating rod (206) is provided with a sliding column (2061), and the other end away from the sliding column (2061) is provided with a roller (2062), the outer wall of the sliding column (2061) is sleeved with a pushing block (2063), and the inner wall of the pushing block (2063) is provided with a threaded groove (2064), the sliding column The end of the screw thread groove (2061) extends to the inner wall of the screw thread groove (2064) and slidably cooperates therewith. A cylinder (2065) is further arranged inside the fixed block (2055) and an inclined block (2066) is arranged at the end of the cylinder (2065). The pushing block (2063) moves at the end of the rotating rod (206) and squeezes the inclined block (2066), driving the cylinder (2065) downward and squeezing the first elastic member (2067) arranged at the end of the inclined block (2066) to deform it. A mounting plate (204) is fixed to the outer wall of the bottom plate (201); a guide plate (2042) is provided on the end face of the mounting plate (204); a guide groove (207) is provided on the end face of the guide plate (2042); the roller (2062) slides on the inner wall of the guide groove (207); a rack (2071) is provided on the inner wall of the guide groove (207); and the rack (2071) meshes with a gear on the outer wall of the roller (2062); A branch plate (2072) is hingedly connected to the inner wall of the guide groove (207), one end of the branch plate (2072) is located in a notch (2073) provided on the end surface of the guide groove (207), and the roller (2062) passes through the branch plate (2072) and enters the upper end of the guide groove (207).

2. The automatic material pulling device for an injection molding machine according to claim 1, characterized in that: The inner wall of the adjusting component (203) is provided with a limiting rod (2031), the outer wall of the limiting rod (2031) is movably provided with a movable plate (2032), the end of the limiting rod (2031) is sleeved with a second elastic member (2033) and the second elastic member (2033) is located at the end of the movable plate (2032), the end surface array of the movable plate (2032) is provided with an adjusting rod (2034) and the adjusting rod (2034) is opposite to a positioning column (2012) fixed on the surface of the bottom plate (201), and the positioning column (2012) is fixed to the outer wall of the mold (2011) opened on the surface of the bottom plate (201).

3. The automatic material pulling device for an injection molding machine according to claim 2, characterized in that: An opening (2041) is provided on the end surface of the mounting plate (204), an end of the movable plate (2032) extends to the inner wall of the opening (2041) and slidably cooperates therewith, and a push column (2035) is provided at the end of the movable plate (2032), and the push column (2035) extends into the interior of the opening (2041).

4. The automatic material pulling device for an injection molding machine according to claim 3, characterized in that: A driving motor (2043) is fixed to the outer wall of the mounting plate (204), an oblique ring (2044) is arranged at the axis of the driving motor (2043), an end of the pushing column (2035) is in contact with the end surface of the oblique ring (2044), and when the oblique ring (2044) rotates, it drives the pushing column (2035) to move.

5. The automatic material pulling device for an injection molding machine according to claim 4, characterized in that: The material pulling component (202) comprises a moving platform (2021), a strip board (2022) is fixed on the end surface of the moving platform (2021), and a cylinder (2023) is arranged on the end surface of the strip board (2022).

6. The automatic material pulling device for an injection molding machine according to claim 5, characterized in that: A servo motor (2024) is arranged inside the movable platform (2021), an internal gear (2025) is arranged at the axis of the servo motor (2024), a ratchet (2026) is arranged on the outer wall of the internal gear (2025), an external gear (2027) is sleeved on the outer wall of the internal gear (2025), and a ratchet (2028) is arranged on the inner wall of the external gear (2027), the ratchet (2026) is engaged with the ratchet (2028) and restricts the external gear (2027), and a pulling column (2029) is arranged on the outer wall of the external gear (2027) for pulling the material belt.

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