Anti-burr hot cutting tool for injection molding product

Abstract

The burr-preventing hot cutting tool comprises a side plate, the injection product and a water gap, the inner side of the side plate is connected with a mechanical arm, the outer side of the side plate is connected with a fixing frame, a positioning column is arranged on the outer side of the fixing frame, a positioning hole corresponding to the positioning column is formed in the inner side of a mold core, and a hot cutting assembly is arranged in the middle of the fixing frame. The outer side of the hot cutting assembly faces the joint of the injection product and the water gap and conducts hot cutting on the joint, so that the injection product is separated from the water gap, the clamping assembly is arranged in the middle of the side plate, one end of the water gap is clamped and moved through the clamping assembly, and the water gap is prevented from being mixed with the injection product. The hot cutter is obliquely arranged, so that the hot cutter is tangent to the outer edge of a product, burrs can be avoided while the injection molding product and a water gap are cut off, the arc-shaped cutter head is arranged on the outer side of the hot cutter, and the arc-shaped cutter head can prevent the hot cutter from colliding with the water gap to cause displacement of the injection molding product and the water gap to affect the hot cutting effect and precision.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection moulding product processing technical field especially relates to a injection moulding product anti -spur hot cutting frock. BACKGROUND

[0002] In the production process, the edge of the injection moulding product is prone to burr due to the increase of the number of times of using the mould or the unreasonable setting of injection parameters. These burrs not only affect the appearance of the product, but also may cause adverse effects on subsequent processing and use performance, and even lead to product scrap.

[0003] The patent document CN211307157U discloses a multifunctional plastic injection molding machine, which comprises an injection molding machine, a female die is arranged on one side of the injection molding machine close to an injection molding gun mouth, a female die seat is arranged between the female die and the injection molding machine, an injection hole is arranged in the middle of the female die seat, an elongated die frame is arranged on the side of the female die away from the female die seat, a first sliding hole is arranged close to four corners of the elongated die frame, an elongated die hole is arranged in the elongated die frame, the size of the elongated die hole is matched with the size of the female die, a male die seat is arranged on the side of the elongated die frame away from the female die, and the plastic box produced by the elongated die frame has an unnecessary part. Then, the unnecessary part is cut off by a hot cutting wire, the burr of the plastic box formed by processing is removed, the overall equipment is convenient to install and disassemble, and maintenance is convenient.

[0004] In the above scheme, the device makes the produced plastic box have an unnecessary part through the setting of the elongated die frame, and then the unnecessary part is cut off by a hot cutting wire, the burr of the plastic box formed by processing is removed, and it is not applicable to the removal of the excess injection molding part of the existing injection molding product. The hot cutting wire has poor relative stability, needs to be tensioned, is inconvenient, the excess part of the injection molding product has an irregular structure, needs to be cut by an adaptive hot cutting knife, on the other hand, the injection molding product and the excess part of the injection molding product are mixed, which is also inconvenient, and needs to be selected. Therefore, it is necessary to provide an injection molding product anti-burr hot cutting frock to solve the defects of the prior art. UTILITY MODEL CONTENT

[0005] The utility model aims at solving the defects in the prior art, and provides an injection molding product anti-burr hot cutting frock.

[0006] The utility model solves the technical problems by adopting the following technical scheme:

[0007] The utility model provides an injection product anti burr hot cutting tool, including side plate, injection product and nozzle, the inside of side plate is connected with mechanical arm, the outside of side plate is connected with fixed frame, the outside of fixed frame is equipped with positioning post, the inside of mould core is equipped with the positioning hole corresponding with positioning post, the middle part of fixed frame is equipped with hot cutting assembly, the outside of hot cutting assembly is towards injection product and nozzle junction and heat cutting, makes injection product and nozzle separate, the middle part of side plate is equipped with clamping assembly, by clamping assembly to nozzle one end clamping movement, avoid nozzle and injection product mix.

[0008] The utility model further sets up, hot cutting assembly includes:

[0009] Hot cutting knife, this hot cutting knife installs in the middle part of fixed frame, the outside of hot cutting knife is towards injection product and nozzle junction, the inside of hot cutting knife is towards side plate, and the inside of hot cutting knife is equipped with heating hole;

[0010] Heating rod, one end of this heating rod is inserted into heating hole, and the other end of heating rod is connected with heating unit, and heating unit heats hot cutting knife through heating rod.

[0011] The utility model further sets up, a pair of hot cutting knives are symmetrically arranged, and the hot cutting knives are inclinedly arranged, and the outer side of the hot cutting knives is provided with an arc-shaped tool bit.

[0012] The utility model further sets up, the side plate is symmetrically provided with a through hole one, and the heating rod passes through the through hole one and is connected with the heating unit.

[0013] The utility model further sets up, and the clamping assembly includes:

[0014] Fixed seat, the fixed seat is connected with the outside of side plate;

[0015] Air pipe, one end of the air pipe is connected with the fixed seat, and the other end of the air pipe is connected with the gas source;

[0016] Clamping seat, one end of the clamping seat is connected with the fixed seat, and the clamping seat is towards nozzle.

[0017] The utility model further sets up, and the middle part of fixed frame is provided with a through hole two, and one end of nozzle passes through the through hole two and is clamped by the clamping seat.

[0018] The utility model further sets up, and the lower side of injection product is provided with a collection frame one, and the collection frame one is used for collecting injection product, and one side of the collection frame one is provided with a collection frame two, and the collection frame two is used for collecting nozzle.

[0019] Summarized above, the utility model has following beneficial effect:

[0020] 1. The utility model discloses a hot cutting knife instead of hot cutting wire to cut the product, and the stability is higher, and the structural stiffness is higher, and the hot cutting instead of cold cutting processing mode can make the injection product edge burr less, and compared with artificial breaking of injection product and water gap, the efficiency and product quality are greatly improved.

[0021] 2. The utility model discloses a hot cutting knife is arranged obliquely, makes hot cutting knife and product outer edge tangent, can avoid burr to produce when cutting off injection product and water gap, and the outside of hot cutting knife is equipped with arc-shaped cutter head, and arc-shaped cutter head can avoid hot cutting knife and water gap to meet and make injection product and water gap produce displacement to influence hot cutting effect and precision.

[0022] 3. The utility model discloses a clamping seat is controlled clamping water gap by pneumatic, can clamping water gap and moving a certain distance under the drive of mechanical arm, makes water gap and injection product separate, avoids the step of hot cutting after injection product and water gap mixed and need to select, improves production efficiency. ACCURACY

[0023] Figure 1 It is the front view of the utility model.

[0024] Figure 2 It is the structure schematic of the utility model Figure 1 .

[0025] Figure 3 It is the structure schematic of the utility model Figure 2 .

[0026] Figure 4 It is the structure schematic of the utility model after removing the die and positioning column.

[0027] In the drawing, 1. side plate, 11. through -hole one, 2. injection product, 3. water gap, 4. fixed frame, 41. through -hole two, 5. positioning column, 6. die, 7. hot cutting assembly, 71. hot cutting knife, 72. hot stick, 8. clamping assembly, 81. fixed seat, 82. air pipe, 83. clamping seat. DETAILED DESCRIPTION

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0029] Example 1:

[0030] In this embodiment, as Figures 1-4 As shown, this utility model proposes an anti-burr hot-cutting fixture for injection molded products, including a side plate 1, an injection molded product 2, and a sprue 3. The sprue is the inlet and outlet for the flow of hot liquid material during injection molding. The inner side of the side plate is connected to a robotic arm, which is an existing product and is not shown in the figure. The robotic arm drives the side plate to move. The outer side of the side plate is connected to a fixed frame 4. The outer side of the fixed frame is provided with a positioning post 5. The inner side of the mold core 6 is provided with a positioning hole corresponding to the positioning post. A hot-cutting component 7 is provided in the middle of the fixed frame. The outer side of the hot-cutting component faces the junction of the injection molded product and the sprue and hot-cuts it, so that the injection molded product is separated from the sprue. A clamping component 8 is provided in the middle of the side plate. The clamping component clamps and moves one end of the sprue to prevent the sprue from mixing with the injection molded product.

[0031] In this embodiment, the hot cutting assembly includes a hot cutting blade 71 and a heating rod 72. The hot cutting blade is installed in the middle of the fixing frame, with the outer side of the hot cutting blade facing the junction of the injection molded product and the sprue, and the inner side of the hot cutting blade facing the side plate. The inner side of the hot cutting blade is provided with a heating hole. One end of the heating rod is inserted into the heating hole, and the other end of the heating rod is connected to the heating unit. The heating unit heats the hot cutting blade through the heating rod. The heating unit is prior art and is not shown in the figure, so it will not be described in detail here.

[0032] In this embodiment, a pair of hot cutting blades are symmetrically arranged and the hot cutting blades are inclined so that the hot cutting blades are tangent to the outer edge of the product. This avoids the generation of burrs while cutting the injection molded product and the sprue. The outer side of the hot cutting blade is provided with an arc-shaped blade head, which can prevent the hot cutting blade from hitting the sprue and causing displacement of the injection molded product and the sprue, thus affecting the hot cutting effect and accuracy.

[0033] In this embodiment, the side plate is further configured to have symmetrical through holes 11, through which the heating rod passes and connects to the heating unit, thus avoiding wiring from passing through the side of the side plate and causing wiring confusion.

[0034] Further provided in the embodiment is that the clamping assembly comprises a fixing seat 81, an air pipe 82 and a clamping seat 83, the fixing seat is connected to the outer side of the side plate, one end of the air pipe is connected to the fixing seat, the other end of the air pipe is connected to an air source, one end of the clamping seat is connected to the fixing seat, and the clamping seat faces the water gap, the clamping seat is a prior art and is not shown in the figure.

[0035] Further provided in the embodiment is that the middle part of the fixing frame is provided with a through hole two 41, and one end of the water gap is clamped by the clamping seat through the through hole two.

[0036] Further provided in the embodiment is that a collecting frame one is arranged below the injection molding product, the injection molding product is collected by the collecting frame one, a collecting frame two is arranged on one side of the collecting frame one, and the water gap is collected by the collecting frame two, and the collecting frame one and the collecting frame two have a collecting effect, which is not shown in the figure.

[0037] Embodiment 2:

[0038] In the embodiment, as shown in the figure, Figures 1-4 the utility model discloses a kind of injection molding product anti burr hot cutting tool, including side plate 1, injection molding product 2 and water gap 3, water gap is the import and export of hot liquid material flow when injection molding product injection molding, the inner side of side plate is connected with mechanical arm, and mechanical arm is prior product, which is not shown in the figure, side plate is moved by mechanical arm, and the outer side of fixed frame 4 is connected with side plate, fixed frame outer side is provided with positioning column 5, and the inner side of mould core 6 is provided with the positioning hole corresponding with positioning column, the middle part of fixed frame is provided with hot cutting assembly 7, the outer side of hot cutting assembly faces the intersection of injection molding product and water gap and is hot cut, so that injection molding product and water gap are separated, and the middle part of side plate is provided with clamping assembly 8, one end of water gap is clamped and moved by clamping assembly, to avoid that water gap and injection molding product are mixed.

[0039] Further provided in the embodiment is that the hot cutting assembly comprises a hot cutting knife 71 and a heating rod 72, the hot cutting knife is installed in the middle part of the fixed frame, the outer side of the hot cutting knife faces the intersection of the injection molding product and the water gap, the inner side of the hot cutting knife faces the side plate, and the inner side of the hot cutting knife is provided with a heating hole; one end of the heating rod is inserted into the heating hole, and the other end of the heating rod is connected with a heating unit, the heating unit is used for heating the hot cutting knife through the heating rod, and the heating unit is a prior art and is not shown in the figure.

[0040] Further provided in the embodiment is that a pair of hot cutting knives are symmetrically arranged, the hot cutting knives are obliquely arranged, so that the hot cutting knives are tangent to the outer edge of the product, the hot cutting knives can avoid burr generation when cutting off the injection molding product and the water gap, the outer side of the hot cutting knife is provided with an arc-shaped knife head, and the arc-shaped knife head can avoid that the hot cutting knife collides with the water gap, so that the injection molding product and the water gap are displaced, and the hot cutting effect and precision are affected.

[0041] Further in the embodiment, the side plate is symmetrically provided with a through hole I 11, and the heating rod is connected with the heating unit by penetrating the through hole I, so as to avoid the line mixing caused by the line passing through the side plate from the side.

[0042] Further in the embodiment, the clamping assembly comprises a fixing seat 81, an air pipe 82 and a clamping seat 83, the fixing seat is connected with the outer side of the side plate, one end of the air pipe is connected with the fixing seat, the other end of the air pipe is connected with an air source, one end of the clamping seat is connected with the fixing seat, and the clamping seat faces the water gap.

[0043] Further in the embodiment, the middle part of the fixing frame is provided with a through hole II 41, and one end of the water gap is clamped by the clamping seat by penetrating the through hole II.

[0044] The working principle of the anti-burr hot cutting tool for the injection molding product is that the mechanical arm drives the side plate to move, so that the fixing frame and the positioning column are close to the mold core, after the positioning column is inserted into the positioning hole of the mold core, the clamping seat clamps one end of the water gap under the control of the air, and the hot cutting knife is located at the joint of the injection molding product and the water gap and cuts it, after the cutting is completed, the mechanical arm drives the side plate to reset, and the injection molding product falls and is collected by the collecting frame I, after the mechanical arm drives the side plate and the clamping assembly to move to a certain position, the clamping seat is loosened, and the water gap falls and is collected by the collecting frame II.

[0045] In the description of the utility model, it needs to be explained that when the terms of indicating the orientation or position relationship such as "upper", "lower", "inner", "outer", "left" and "right" appear, it should be understood that the orientation or position relationship is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship that the utility model product is usually placed in use, or the orientation or position relationship that the person skilled in the art usually understands, and it is only for the convenience of describing the utility model and simplifying the description, and therefore it cannot be understood as indicating or implying that the equipment or element indicated must have a particular orientation, a particular orientation and operation, and therefore it cannot be understood as a limitation on the utility model. In addition, when the terms such as "first" and "second" appear, they are only used for distinguishing the description, and cannot be understood as indicating or implying relative importance. In the description of the utility model, it also needs to be explained that unless otherwise explicitly specified and limited, the terms such as "mounting", "setting", "connecting" should be understood in a broad sense, for example, "connecting" can be fixed connection, or detachable connection, or integrally connected, can be mechanical connection, or electrical connection, can be direct connection, or indirect connection through an intermediate medium, and can be the communication inside two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

Claims

1. A hot trimming tool for preventing burr of an injection molded product, comprising a side plate, an injection molded product, and a sprue, characterized in that, The inner side of the side plate is connected with the mechanical arm, the outer side of the side plate is connected with the fixing frame, the outer side of the fixing frame is provided with a positioning column, the inner side of the mold core is provided with a positioning hole corresponding to the positioning column, the middle part of the fixing frame is provided with a hot cutting assembly, the outer side of the hot cutting assembly faces the intersection of the injection product and the water port and cuts it, so that the injection product and the water port are separated, the middle part of the side plate is provided with a clamping assembly, one end of the water port is clamped and moved by the clamping assembly, and the water port and the injection product are prevented from being mixed.

2. A hot trimming tool for preventing burrs on an injection molded product according to claim 1, characterized in that, The hot cutting assembly comprises: a hot cutting knife installed in the middle part of the fixing frame, the outer side of the hot cutting knife faces the intersection of the injection product and the water port, the inner side of the hot cutting knife faces the side plate, and the inner side of the hot cutting knife is provided with a heating hole; a heating rod, one end of the heating rod is inserted into the heating hole, and the other end of the heating rod is connected with a heating unit, and the heating unit heats the hot cutting knife through the heating rod.

3. A hot trimming tool for preventing burrs on an injection molded product according to claim 2, characterized in that, The hot cutting knife is symmetrically provided with a pair of hot cutting knives, the hot cutting knives are inclinedly arranged, and the outer side of the hot cutting knife is provided with an arc-shaped knife head.

4. The hot trimming tooling for preventing burrs on injection-molded products according to claim 2, characterized in that, The side plate is symmetrically provided with a through hole one, and the heating rod passes through the through hole one and is connected with the heating unit.

5. The hot trimming tool for preventing burrs of an injection-molded product according to claim 1, characterized by The clamping assembly comprises: a fixed seat connected with the outer side of the side plate; an air pipe, one end of the air pipe is connected with the fixed seat, and the other end of the air pipe is connected with an air source; a clamping seat, one end of the clamping seat is connected with the fixed seat, and the clamping seat faces the water port.

6. A hot trimming tool for preventing burrs on an injection-molded product according to claim 5, characterized in that, The middle part of the fixing frame is provided with a through hole two, and one end of the water port passes through the through hole two and is clamped by the clamping seat.

7. The hot trimming tool for preventing burrs on an injection-molded product according to claim 1, characterized by The lower side of the injection product is provided with a collecting frame one, the injection product is collected by the collecting frame one, and the collecting frame one is provided with a collecting frame two on one side, and the water port is collected by the collecting frame two.

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