Automatic water gap cutting device for extrusion blowing die

Abstract

The invention discloses an extrusion blow mold with an automatic water gap cutting device, and relates to the technical field of blow molding equipment, the extrusion blow mold comprises a positioning module, the positioning module is arranged on one side of a blow molding module, the blow molding module is used for blow molding extrusion plastic into plastic bottles, and the positioning module is used for positioning and fixing the plastic bottles; a first slitting plate and a second slitting plate are symmetrically arranged on the positioning module, a first conical cutter is fixedly arranged on the side, close to the second slitting plate, of the first slitting plate, a second conical cutter is fixedly arranged on the side, close to the first slitting plate, of the second slitting plate, and a driving module is further arranged on the positioning module. The driving module is used for driving the first slitting plate and the second slitting plate to get close to each other or get away from each other; a limiting rod is arranged on the second conical cutter and is connected with a lifting module for driving the limiting rod to lift; after the bottle opening and drainage opening materials and the plastic bottles are slit, the automatic material separation effect can be achieved, subsequent separation treatment does not need to be conducted again, and the machining efficiency is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of blow molding equipment, and in particular to an extrusion blow molding die with an automatic water inlet cutting device. Background Art

[0002] Extrusion blow molds are molds used in the plastic extrusion blow molding process, usually used to produce hollow plastic products such as PC barrels. During the extrusion blow molding process, the molten plastic is squeezed into the mold and formed into the desired product by the shape and size of the mold.

[0003] The automatic sprue cutting device is an automated device installed in or near the mold, which is used to automatically cut off the excess sprue part after the plastic product is formed. The sprue is the plastic part that connects the mold and the product during the molding process of plastic products, and usually needs to be cut off after the product is formed.

[0004] In the prior art, for example, the patent document with the publication number CN219583504U discloses an automatic nozzle material cutting device system for a bottle blowing machine, and also discloses a horizontally arranged transmission bottom plate for conveying bottles, a first bottle body fixing block arranged on both sides of the transmission bottom plate, a first longitudinal push-pull module matched with the first bottle body fixing block, a cutter module arranged on the upper part of the first bottle body fixing block, and a second longitudinal push-pull module matched with the cutter module;

[0005] However, after the water outlet cutting operation is performed in the prior art, the cut bottle mouth water outlet material and the bottle body are not separated, so that the bottle mouth water outlet material and the bottle body need to be separated before entering the next processing step, which is relatively cumbersome. Summary of the invention

[0006] The purpose of the present invention is to provide an extrusion blow mold with an automatic water inlet device to solve the following technical problems:

[0007] After the nozzle cutting operation is performed on the bottle mouth and nozzle material, the bottle mouth and nozzle material cannot be separated from the bottle body, and a separation operation is required, which is relatively cumbersome.

[0008] The purpose of the present invention can be achieved by the following technical solutions:

[0009] An extrusion blow mold with an automatic water inlet device comprises a positioning module, the positioning module is arranged on one side of a blow molding module, the blow molding module is used to blow mold the extruded plastic into a plastic bottle, and the positioning module is used to position and fix the plastic bottle;

[0010] The positioning module is symmetrically provided with a first slitting plate and a second slitting plate, a first conical cutter is fixedly provided on a side of the first slitting plate close to the second slitting plate, and a second conical cutter is fixedly provided on a side of the second slitting plate close to the first slitting plate. A driving module is also provided on the positioning module, and the driving module is used to drive the first slitting plate and the second slitting plate to move toward each other or away from each other.

[0011] Wherein, a limiting rod is arranged on the second conical cutter, and the limiting rod is connected to a lifting module that drives the second conical cutter to rise and fall.

[0012] Preferably, the blow molding module includes two groups of first positioning plates arranged in parallel and symmetrically, and the molding supports are fixedly arranged on the sides close to each other, and the molding grooves on both sides are respectively opened on the sides close to each other to form a molding cavity for molding plastic bottles.

[0013] Preferably, the positioning module includes two groups of second positioning plates arranged in parallel and symmetrically, the second positioning plates on both sides are respectively fixed to the first positioning plates on the corresponding side, the first positioning seat and the second positioning seat are respectively arranged on the side close to each other, a plurality of groups of first positioning grooves are correspondingly opened on the side close to the first positioning seats on both sides, the first positioning grooves on both sides are enclosed to form a first positioning cavity for positioning the bottle mouth, a plurality of groups of second positioning grooves are correspondingly opened on the side close to the second positioning seats on both sides, the second positioning grooves on both sides are enclosed to form a second positioning cavity for positioning the bottle bottom.

[0014] Preferably, the positioning module further comprises a support plate, a screw is rotatably arranged on the support plate, one end of the screw is fixed to the output end of the servo motor fixedly arranged on the support plate, and a nut fixed to the first positioning plate is symmetrically spirally sleeved on the screw;

[0015] Wherein, a reciprocating motion mechanism is also arranged at the bottom of the support plate, and the reciprocating motion mechanism is used to drive the support plate to reciprocate along the blow molding end and the slitting end.

[0016] Preferably, the height of the upper surface of the first positioning seat is lower than the height of the upper surface of the forming support.

[0017] Preferably, the bottom surfaces of the first conical cutter and the second conical cutter are horizontal planes, and are slidably fitted with the upper surface of the first positioning seat.

[0018] Preferably, two groups of first guide rods are symmetrically fixedly arranged on one side of the first cutting plate away from the second cutting plate, and the first guide rods on both sides are slidably connected to the first positioning frame fixedly arranged on the second positioning plate; two groups of second guide rods are symmetrically fixedly arranged on one side of the second cutting plate away from the first cutting plate, and the second guide rods on both sides are slidably connected to the second positioning frame fixedly arranged on the second positioning plate.

[0019] Preferably, the ends of the first guide rods on both sides are fixed to a driving frame, the driving frame is fixed to a driving end of a driving cylinder fixedly arranged on the second positioning frame, and the driving module includes a first rack symmetrically fixedly arranged at both ends of the first slitting plate;

[0020] Among them, the second racks are symmetrically fixed on both sides of the second cutting plate, and a gear meshing with the second rack is rotatably arranged on the side end of the first positioning seat facing the second cutting plate, and the first rack is arranged on the other side of the gear.

[0021] Preferably, the lifting module comprises an L-shaped support fixedly arranged on the top of the limit rod, a guide wheel is rotatably arranged on one side of the L-shaped support, a guide column is fixedly arranged on the L-shaped support, the guide column is slidably connected to the L-shaped support plate fixedly arranged on the second cutting plate, and a first spring is also arranged on the guide column;

[0022] Among them, a horizontal guide frame is arranged on the first positioning seat facing the second cutting plate direction, and an inclined guide frame is fixedly arranged on one side of the horizontal guide frame facing the guide wheel. The inclined guide frame is inclined toward the direction of the first positioning seat, and the horizontal guide frame is connected to the elastic mechanism arranged on the first positioning seat.

[0023] Preferably, the elastic mechanism comprises an L-shaped frame fixedly arranged on the second positioning plate, a sleeve is fixedly arranged at the end of the L-shaped frame in the direction of the first positioning seat, a telescopic rod slidably plugged with the sleeve is fixedly arranged on one side of the horizontal guide frame, and a second spring is arranged on the telescopic rod;

[0024] Wherein, a limiting protrusion is fixedly arranged on the telescopic rod to prevent it from being separated from the sleeve.

[0025] Beneficial effects of the present invention:

[0026] (1) Before the second conical cutter of the present invention cuts the bottle mouth and nozzle material, the limiting rod and the second conical cutter are in a state of being separated from each other. When the second conical cutter cuts the bottle mouth and nozzle material, the lifting module drives the limiting rod to descend, and the limiting rod passes through the bottle mouth and nozzle material and abuts against the second conical cutter to limit the cut bottle mouth and nozzle material on the second conical cutter, and then the first cutting plate and the second cutting plate are driven away from each other by the driving module. When the second cutting plate moves to separate from the positioning module, the limiting rod can be driven by the lifting module to rise to separate from the bottle mouth and nozzle material, and the bottle mouth and nozzle material can fall to the corresponding collection position along the second conical cutter under the action of gravity, and the cut plastic bottle can directly fall under the positioning module, so that the bottle mouth and nozzle material and the plastic bottle can achieve the effect of automatic material separation after the cutting is completed, and there is no need for subsequent separation treatment, which effectively improves the processing efficiency;

[0027] (2) In the present invention, when the first slitting plate and the second slitting plate are at the initial position, the first rack is not engaged with the gear, thereby avoiding interference between the gear and the first rack when the second positioning plates on both sides move away from each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention will be further described below in conjunction with the accompanying drawings.

[0029] Figure 1 It is a structural schematic diagram of an extrusion blow mold with an automatic water-cutting device of the present invention;

[0030] Figure 2 It is a schematic cross-sectional structure diagram of an extrusion blow mold with an automatic water inlet cutting device of the present invention;

[0031] Figure 3 It is a structural schematic diagram of a positioning module in an extrusion blow mold with an automatic water nozzle cutting device of the present invention;

[0032] Figure 4 It is a side view structural schematic diagram of a positioning module in an extrusion blow mold with an automatic water-cutting device of the present invention;

[0033] Figure 5 It is a structural schematic diagram of a guide wheel in an extrusion blow mold with an automatic water-cutting device of the present invention;

[0034] Figure 6 It is a structural schematic diagram of a sleeve in an extrusion blow mold with an automatic water nozzle cutting device of the present invention;

[0035] Figure 7 It is a top view structural schematic diagram of an extrusion blow mold with an automatic water cut device of the present invention;

[0036] Figure 8 The present invention is a schematic structural diagram of the slitting process of an extrusion blow mold with an automatic water inlet cutting device.

[0037] In the figure: 1, blow molding module; 2, positioning module; 3, second rack; 4, reciprocating mechanism; 5, driving cylinder; 6, second positioning frame; 7, limiting rod; 101, first positioning plate; 102, molding support; 103, molding cavity; 104, molding groove; 201, second positioning plate; 202, second positioning seat; 203, second positioning cavity; 204, first positioning seat; 205, first positioning cavity; 206, second positioning groove; 207, first positioning groove; 401, support plate; 402, servo motor; 403, nut; 404, screw; 5 01, driving frame; 502, first guide rod; 503, first positioning frame; 504, first cutting plate; 505, first rack; 506, gear; 507, first conical cutter; 601, second guide rod; 602, second cutting plate; 603, second conical cutter; 604, L-shaped frame; 701, L-shaped support; 702, guide wheel; 703, guide column; 704, L-shaped support plate; 705, first spring; 706, inclined guide frame; 707, horizontal guide frame; 710, sleeve; 708, telescopic rod; 709, second spring; 710, sleeve. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] Example 1

[0040] See also Figure 1 As shown, the present invention is an extrusion blow mold with an automatic water nozzle cutting device, including a positioning module 2, which is arranged on one side of a blow molding module 1. The blow molding module 1 is used to blow mold the extruded plastic into a plastic bottle, and the positioning module 2 is used to position and fix the plastic bottle; specifically, in this embodiment, the extruded plastic is first blow molded into a plastic bottle by the blow molding module 1, and after cooling, the plastic bottle is then positioned and fixed by the positioning module 2 to facilitate the subsequent bottle mouth water nozzle cutting operation.

[0041] See also Figure 3-Figure 4The first cutting plate 504 and the second cutting plate 602 are symmetrically arranged on the positioning module 2, and the first conical cutting knife 507 is fixedly arranged on the side of the first cutting plate 504 close to the second cutting plate 602, and the second conical cutting knife 603 is fixedly arranged on the side of the second cutting plate 602 close to the first cutting plate 504. The positioning module 2 is also provided with a driving module, and the driving module is used to drive the first cutting plate 504 and the second cutting plate 602 to move towards each other or away from each other; it can be explained that after the positioning module 2 positions the plastic bottle, the driving module drives the first cutting plate 504 and the second cutting plate 602 to move towards each other, so as to cut the bottle mouth and water outlet material.

[0042] As a further solution of this embodiment, please refer to Figure 4-Figure 5 , a limiting rod 7 is arranged on the second conical cutter 603, and the limiting rod 7 is connected to the lifting module that drives it to rise and fall; it can be explained that before the second conical cutter 603 cuts the bottle mouth and nozzle material, the limiting rod 7 and the second conical cutter 603 are in a state of being separated from each other. When the second conical cutter 603 cuts the bottle mouth and nozzle material, the lifting module drives the limiting rod 7 to descend, and the limiting rod 7 passes through the bottle mouth and nozzle material and abuts against the second conical cutter 603, so as to limit the cut bottle mouth and nozzle material on the second conical cutter 603 (please refer to Figure 7-Figure 8 ), and then the driving module drives the first cutting plate 504 and the second cutting plate 602 to move away from each other. When the second cutting plate 602 moves to separate from the positioning module 2, the lifting module can drive the limit rod 7 to rise to separate from the bottle mouth and spout material, and the bottle mouth and spout material can fall to the corresponding collection position along the second conical cutter 603 under the action of gravity, and the plastic bottles after cutting can fall directly under the positioning module 2, so that the bottle mouth and spout material and the plastic bottles can achieve the effect of automatic material separation after the cutting is completed, and there is no need for subsequent separation processing, which effectively improves the processing efficiency.

[0043] Example 2

[0044] Based on Example 1, please refer to Figure 1-Figure 2 The blow molding module 1 includes two groups of first positioning plates 101 which are arranged in parallel and symmetrically, and the molding supports 102 are fixedly arranged on the sides close to each other. The molding supports 102 on both sides are respectively provided with molding grooves 104 on the sides close to each other, and the molding grooves 104 on both sides are enclosed to form a molding cavity 103 for molding a plastic bottle; specifically, in this embodiment, the plastic raw material to be blown is placed in the molding cavity 103, and the plastic raw material is blown by extending the blowing needle into the molding cavity 103, so that the plastic can form a plastic bottle structure under the blow molding action.

[0045] It should be noted that the present embodiment does not limit the number of molding grooves 104 provided on one side of each group of molding supports 102, so as to meet the actual blow molding production requirements. For example, the present embodiment has four groups of molding grooves 104.

[0046] See also Figure 1-Figure 3 The positioning module 2 includes two groups of second positioning plates 201 which are arranged in parallel and symmetrically. The second positioning plates 201 on both sides are respectively fixed to the first positioning plates 101 on the corresponding side. The first positioning seats 204 and the second positioning seats 202 are respectively arranged on the sides close to each other. A plurality of groups of first positioning grooves 207 are correspondingly opened on the sides close to the first positioning seats 204. The first positioning grooves 207 on both sides are enclosed to form a first positioning cavity 205 for positioning the bottle mouth. A plurality of groups of second positioning grooves 206 are correspondingly opened on the sides close to the second positioning seats 202. The second positioning grooves 206 on both sides are enclosed to form a second positioning cavity 203 for positioning the bottle bottom. It should be noted that when positioning the plastic bottle, the bottle mouth of the plastic bottle is embedded in the first positioning cavity 205, and the bottle bottom is embedded in the second positioning cavity 203, so that the positioning and fixing of the plastic bottle can be achieved to ensure the stability of the bottle mouth and water outlet material during cutting.

[0047] In this embodiment, please refer to Figure 2-Figure 4 The positioning module 2 also includes a support plate 401, on which a screw 404 is rotatably arranged, one end of the screw 404 is fixed to the output end of a servo motor 402 fixedly arranged on the support plate 401, and the threads on both sides of the screw 404 are rotated in opposite directions. The screw 404 is symmetrically spirally sleeved with a nut 403 fixed to the first positioning plate 101; wherein a reciprocating mechanism 4 is also arranged at the bottom of the support plate 401, and the reciprocating mechanism 4 is used to drive the support plate 401 to reciprocate along the blowing end and the slitting end; it can be explained that during blow molding, the blow molding module 1 is located at the position of the blow molding end, and the positioning module 2 is located at the position of the slitting end. When the blow molding is completed and cooled, the blowing needle still stays at the plastic On the material bottle, the servo motor 402 then drives the screw 404 to rotate so that the nuts 403 on both sides drive the first positioning plate 101 and the second positioning plate 201 to move away from each other, and the plastic bottle is separated from the molding support 102. Secondly, the reciprocating motion mechanism 4 drives the support plate 401 to move toward the blow molding end, so that the positioning module 2 moves to the blow molding end position, and then the servo motor 402 drives the screw 404 to rotate in the opposite direction to drive the second positioning plate 201 to approach each other, and position the plastic bottle in the first positioning cavity 205 and the second positioning cavity 203, and then separate the blowing needle from the plastic bottle, and finally the reciprocating motion mechanism 4 drives the support plate 401 to reset to cut the bottle mouth blowing material.

[0048] In this embodiment, the height of the upper surface of the first positioning seat 204 is lower than the height of the upper surface of the forming support 102; specifically, by setting the height difference between the first positioning seat 204 and the forming support 102, after the plastic bottle is positioned in the first positioning cavity 205 and the second positioning cavity 203, the bottle mouth and spout material of the plastic bottle can protrude above the first positioning seat 204, so as to facilitate the cutting of the bottle mouth and spout material by the first conical cutter 507 and the second conical cutter 603.

[0049] In addition, the bottom surfaces of the first conical cutter 507 and the second conical cutter 603 are horizontal planes and slidingly fit with the upper surface of the first positioning seat 204, so that when the first conical cutter 507 and the second conical cutter 603 cut the bottle mouth and water outlet material, the cutting surface is smoother.

[0050] See also Figure 3-Figure 4 , two groups of first guide rods 502 are symmetrically fixedly arranged on one side of the first cutting plate 504 away from the second cutting plate 602, and the first guide rods 502 on both sides are slidably connected to the first positioning frame 503 fixedly arranged on the second positioning plate 201, and two groups of second guide rods 601 are symmetrically fixedly arranged on one side of the second cutting plate 602 away from the first cutting plate 504, and the second guide rods 601 on both sides are slidably connected to the second positioning frame 6 fixedly arranged on the second positioning plate 201; specifically, when the driving module of this embodiment drives the first cutting plate 504 and the second cutting plate 602 to move, the first cutting plate 504 can drive the first guide rod 502 to slide on the first positioning frame 503, and the second cutting plate 602 can drive the second guide rod 601 to slide on the second positioning frame 6, so as to improve the stability of the movement of the first cutting plate 504 and the second cutting plate 602.

[0051] The ends of the first guide rods 502 on both sides are fixed to the driving frame 501, and the driving frame 501 is fixed to the driving end of the driving cylinder 5 fixedly arranged on the second positioning frame 201. The driving module includes a first rack 505 symmetrically fixedly arranged at both ends of the first slitting plate 504, wherein the second racks 3 are symmetrically fixedly arranged on both sides of the second slitting plate 602, and the side end of the first positioning seat 204 facing the second slitting plate 602 is rotatably provided with a gear 506 meshing with the second rack 3, and the first rack 505 is arranged on the other side of the gear 506; specifically, when the first slitting plate 504 and the second slitting plate 602 are in the initial position, the first rack 505 is not meshed with the gear 506, thereby avoiding interference between the gear 506 and the first rack 505 when the second positioning plates 201 on both sides are away from each other;

[0052] Correspondingly, when the bottle mouth and water outlet material are cut, the driving frame 501 is first driven by the driving cylinder 5 to move in the direction of the second positioning plate 201, and the second positioning plate 201 drives the first cutting plate 504 to move in the direction close to the second cutting plate 602 through the first guide rod 502, and the first cutting plate 504 synchronously drives the first racks 505 on both sides to move, and as the first rack 505 engages with the gear 506, when the first rack 505 continues to move, it can drive the gear 506 to rotate, and the gear 506 drives the second cutting plate 602 to move in the direction of the first cutting plate 504 by engaging with the second rack 3 during the rotation process, thereby achieving the effect of synchronously driving the first cutting plate 504 and the second cutting plate 602 to approach each other. Therefore, when the driving cylinder 5 drives the first cutting plate 504 to move in the direction away from the second cutting plate 602, the second cutting plate 602 also synchronously moves in the direction away from the first cutting plate 504.

[0053] See also Figure 3-Figure 6The lifting module includes an L-shaped support 701 fixedly arranged on the top of the limit rod 7, a guide wheel 702 is rotatably arranged on one side of the L-shaped support 701, a guide column 703 is fixedly arranged on the L-shaped support 701, and the guide column 703 is slidably connected with the L-shaped support plate 704 fixedly arranged on the second cutting plate 602. A first spring 705 is also provided on the guide column 703, one end of the first spring 705 is fixed to the L-shaped support plate 704, and the other end is fixed to the L-shaped support 701, wherein the first positioning seat 204 close to the second cutting plate 602 is A horizontal guide frame 707 is arranged on the top, and an inclined guide frame 706 is fixedly arranged on one side of the horizontal guide frame 707 close to the guide wheel 702. The inclined guide frame 706 is inclined toward the direction of the first positioning seat 204, and the horizontal guide frame 707 is connected to the elastic mechanism arranged on the first positioning seat 204; it can be explained that in the initial state, there is a certain distance between the second cutting plate 602 and the second positioning plate 201. At this time, the bottom of the positioning rod 7 is in a state of abutting against the second conical cutter 603. When the second cutting plate 602 is driven toward the second cutting plate 602, the second cutting plate 602 is close to the second cutting plate 602. When the first cutting plate 504 moves in the direction of the second cutting plate 602, the second cutting plate 602 synchronously drives the guide wheel 702 to move. The guide wheel 702 first rolls against the inclined guide frame 706. Under the limiting action of the inclined guide frame 706, the L-shaped support 701 and the limiting rod 7 can be driven to rise and separate from the second conical cutter 603. The first spring 705 contracts to generate elastic force, and the guide wheel 702 can move along the horizontal guide frame 707. When the limiting rod 7 moves to the top of the bottle mouth, the guide wheel 702 separates from the horizontal guide frame 707. The spring 705 can drive the limit rod 7 to move in the direction of the bottle mouth and the water outlet material to limit the cut bottle mouth and the water outlet material on the second conical cutter 603. When the second cutting plate 602 is driven to move in the direction away from the first cutting plate 504, the guide wheel 702 can move along the bottom of the horizontal guide frame 707 and the inclined guide frame 706. Since the horizontal guide frame 707 is connected to the elastic mechanism, the guide wheel 702 can push the horizontal guide frame 707 and the inclined guide frame 706 to move upward for a certain distance to avoid interference between the two.

[0054] In addition, the bottom end of the limiting rod 7 of this embodiment is an arc-shaped end to avoid interference with the cutter.

[0055] The elastic mechanism includes an L-shaped frame 604 fixedly arranged on the second positioning plate 201, a sleeve 710 is fixedly arranged at the end of the L-shaped frame 604 in the direction of the first positioning seat 204, a telescopic rod 708 slidably plugged with the sleeve 710 is fixedly arranged on one side of the horizontal guide frame 707, and a second spring 709 is provided on the telescopic rod 708, one end of the second spring 709 is fixed to the sleeve 710, and the other end is fixed to the horizontal guide frame 707, wherein a limiting protrusion 702 is fixedly arranged on the telescopic rod 708 to prevent it from being separated from the sleeve 710; it can be explained that by setting the limiting protrusion 702, the telescopic rod 708 can be prevented from moving downward, and when the guide wheel 702 moves on the horizontal guide frame 707 and the inclined guide frame 706, the stability of the horizontal guide frame 707 and the inclined guide frame 706 is improved to prevent the guide frames from moving downward synchronously.

[0056] A working method of an extrusion blow mold with an automatic water nozzle cutting device, comprising the following steps:

[0057] See also Figure 1-Figure 3 , S1, during blow molding, the blow molding module 1 is located at the position of the blow molding end, and the positioning module 2 is located at the position of the cutting end. When the blow molding is completed and cooled, the blow needle still stays on the plastic bottle;

[0058] S2, the servo motor 402 drives the screw 404 to rotate, and the nuts 403 on both sides drive the first positioning plate 101 and the second positioning plate 201 to move away from each other, and the plastic bottle is separated from the molding support 102;

[0059] S3, the reciprocating mechanism 4 drives the support plate 401 to move toward the blowing end, so that the positioning module 2 moves to the blowing end position;

[0060] See also Figure 2-Figure 5 , S4, the servo motor 402 drives the screw 404 to rotate in the opposite direction, drives the second positioning plates 201 to approach each other, positions the plastic bottle in the first positioning cavity 205 and the second positioning cavity 203, and separates the blowing needle from the plastic bottle at the same time, and the reciprocating mechanism 4 drives the support plate 401 to reset, so that the positioning module 2 moves to the cutting end;

[0061] S5, when cutting, when the second cutting plate 602 is driven to move toward the direction close to the first cutting plate 504, the second cutting plate 602 synchronously drives the guide wheel 702 to move, and the guide wheel 702 first rolls against the inclined guide frame 706, and under the limiting action of the inclined guide frame 706, the L-shaped support 701 and the limiting rod 7 are driven to rise and separate from the second conical cutter 603, and the first spring 705 contracts to generate elastic force, and the guide wheel 702 moves along the horizontal guide frame 707;

[0062] S6, when the limiting rod 7 moves to the top of the bottle mouth and the spout material, the guide wheel 702 separates from the horizontal guide frame 707, and the first spring 705 can drive the limiting rod 7 to move toward the bottle mouth and the spout material, so as to limit the cut bottle mouth and the spout material on the second conical cutter 603;

[0063] S7, the driving module drives the first cutting plate 504 and the second cutting plate 602 to move away from each other and to the initial position. When cutting again, as the limit rod 7 rises, the bottle mouth and water outlet material can fall to the corresponding collection position along the second conical cutter 603 under the action of gravity, and the plastic bottles after cutting can fall directly under the positioning module 2.

[0064] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present invention. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0065] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0066] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. An extrusion blow mold with an automatic water inlet device, comprising a positioning module (2), wherein the positioning module (2) is arranged on one side of a blow molding module (1), the blow molding module (1) is used to blow mold the extruded plastic into a plastic bottle, and the positioning module (2) is used to position and fix the plastic bottle; It is characterized in that The positioning module (2) is symmetrically provided with a first cutting plate (504) and a second cutting plate (602), a first conical cutting knife (507) is fixedly provided on the side of the first cutting plate (504) close to the second cutting plate (602), and a second conical cutting knife (603) is fixedly provided on the side of the second cutting plate (602) close to the first cutting plate (504). The positioning module (2) is also provided with a driving module, which is used to drive the first cutting plate (504) and the second cutting plate (602) to move towards each other or away from each other. Wherein, a limiting rod (7) is arranged on the second conical cutter (603), and the limiting rod (7) is connected to a lifting module that drives the limiting rod (7) to rise and fall.

2. The extrusion blow mold with automatic water nozzle cutting device according to claim 1, characterized in that: The blow molding module (1) comprises two groups of first positioning plates (101) arranged in parallel and symmetrically, and molding supports (102) are fixedly arranged on the adjacent sides of the first positioning plates (101) on both sides, and molding grooves (104) are respectively opened on the adjacent sides of the molding supports (102) on both sides, and the molding grooves (104) on both sides enclose a molding cavity (103) for molding a plastic bottle.

3. The extrusion blow mold with automatic water nozzle cutting device according to claim 2, characterized in that: The positioning module (2) comprises two groups of second positioning plates (201) arranged in parallel and symmetrically, the second positioning plates (201) on both sides are respectively fixed to the first positioning plates (101) on the corresponding sides, the first positioning seats (204) and the second positioning seats (202) are respectively arranged on the sides close to each other, a plurality of groups of first positioning grooves (207) are correspondingly provided on the sides close to each other of the first positioning seats (204), the first positioning grooves (207) on both sides are enclosed to form a first positioning cavity (205) for positioning the bottle mouth, the second positioning seats (202) on both sides are respectively enclosed to each other on the sides close to each other of the second positioning grooves (206), the second positioning grooves (206) on both sides are enclosed to form a second positioning cavity (203) for positioning the bottle bottom.

4. The extrusion blow mold with automatic water nozzle cutting device according to claim 3, characterized in that: The positioning module (2) further comprises a support plate (401), a screw rod (404) is rotatably arranged on the support plate (401), one end of the screw rod (404) is fixed to the output end of a servo motor (402) fixedly arranged on the support plate (401), and a nut (403) fixed to the first positioning plate (101) is symmetrically spirally sleeved on the screw rod (404); A reciprocating mechanism (4) is also arranged at the bottom of the support plate (401), and the reciprocating mechanism (4) is used to drive the support plate (401) to reciprocate along the blow molding end and the slitting end.

5. The extrusion blow mold with automatic water nozzle cutting device according to claim 3, characterized in that: The height of the upper surface of the first positioning seat (204) is lower than the height of the upper surface of the forming support (102).

6. The extrusion blow mold with automatic water nozzle cutting device according to claim 5, characterized in that: The bottom surfaces of the first conical cutter (507) and the second conical cutter (603) are horizontal planes, and are slidably fitted with the upper surface of the first positioning seat (204).

7. The extrusion blow mold with automatic water nozzle cutting device according to claim 3, characterized in that: Two groups of first guide rods (502) are symmetrically fixedly arranged on one side of the first cutting plate (504) away from the second cutting plate (602), and the first guide rods (502) on both sides are slidably connected to a first positioning frame (503) fixedly arranged on the second positioning plate (201); two groups of second guide rods (601) are symmetrically fixedly arranged on one side of the second cutting plate (602) away from the first cutting plate (504), and the second guide rods (601) on both sides are slidably connected to a second positioning frame (6) fixedly arranged on the second positioning plate (201).

8. The extrusion blow mold with automatic water nozzle cutting device according to claim 7, characterized in that: The ends of the first guide rods (502) on both sides are fixed to a driving frame (501), the driving frame (501) is fixed to a driving end of a driving cylinder (5) fixedly arranged on a second positioning frame (201), and the driving module comprises first racks (505) symmetrically fixedly arranged at both ends of the first slitting plate (504); The second racks (3) are symmetrically fixedly arranged on both sides of the second cutting plate (602), and a gear (506) meshing with the second rack (3) is rotatably arranged on the side end of the first positioning seat (204) facing the second cutting plate (602), and the first rack (505) is arranged on the other side of the gear (506).

9. The extrusion blow mold with automatic water nozzle cutting device according to claim 1, characterized in that: The lifting module comprises an L-shaped support (701) fixedly arranged on the top of the limiting rod (7), a guide wheel (702) is rotatably arranged on one side of the L-shaped support (701), a guide column (703) is fixedly arranged on the L-shaped support (701), the guide column (703) is slidably connected to an L-shaped support plate (704) fixedly arranged on the second cutting plate (602), and a first spring (705) is also arranged on the guide column (703); Among them, a horizontal guide frame (707) is arranged on the first positioning seat (204) facing the second cutting plate (602), and an inclined guide frame (706) is fixedly arranged on the horizontal guide frame (707) on one side of the guide wheel (702), and the inclined guide frame (706) is inclined toward the direction of the first positioning seat (204), and the horizontal guide frame (707) is connected to an elastic mechanism arranged on the first positioning seat (204).

10. The extrusion blow mold with automatic water nozzle cutting device according to claim 9, characterized in that: The elastic mechanism comprises an L-shaped frame (604) fixedly arranged on the second positioning plate (201), a sleeve (710) fixedly arranged at the end of the L-shaped frame (604) in the direction of the first positioning seat (204), a telescopic rod (708) slidably plugged with the sleeve (710) fixedly arranged on one side of the horizontal guide frame (707), and a second spring (709) is arranged on the telescopic rod (708); Wherein, a limiting protrusion (702) is fixedly arranged on the telescopic rod (708) to prevent the telescopic rod (708) from being separated from the sleeve (710).

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