Material nozzle protective cover device of injection molding machine

Abstract

The utility model relates to the field of injection molding machine accessories, and discloses an injection molding machine material nozzle protective cover device which comprises a protective cover body, the protective cover body is fixed on an injection molding machine head plate, two sides of the protective cover body are provided with an open groove, and a protective swing door is hinged to the open groove. The protective swing door is provided with a visible window which is provided with a transparent sheet and is used for observing the internal screw rod, a limiting mechanism which is used for limiting the protective swing door to be automatically opened is arranged between the protective swing door and the side wall of the protective cover body, and the device can directly take out waste materials near the material nozzle without moving and is easy to observe the internal screw rod of the machine barrel.

Description

Technical Field

[0001] The utility model relates to the field of injection molding machine accessories, in particular to a nozzle protective cover device of an injection molding machine. Background Art

[0002] The structure of the nozzle protection cover of the injection molding machine can refer to the Chinese patent with announcement number CN207156321U, which discloses a nozzle protection cover installation structure of the injection molding machine, including a nozzle protection cover, a guide rail and a template, the guide rail is installed on the template, and the nozzle protection cover moves along the inner side of the guide rail through a bearing. The nozzle protection cover includes a panel, transparent sheets are arranged on both sides of the panel, and handles and clamping screws are respectively arranged at the front and rear ends of the top of the panel, and the bearing is arranged on the inner side of the panel.

[0003] The reason why the above structure is provided with guide rails is that the waste generated during the use of the nozzle needs to be cleaned regularly, and the side panels on both sides of the existing panel are fixedly connected to the top panel, and the nozzle can only be exposed by removing the panel to achieve waste cleaning. The existing guide rails and bearings are consumables. Long-term back and forth movement will cause wear of the bearings and guide rails, resulting in the sinking of the nozzle protective cover and interference with the barrel cover. Utility Model Content

[0004] The utility model aims at the disadvantages of the existing nozzle protection cover that, due to the fixed arrangement of the side plates on both sides, fertilizer can only be cleaned by adopting the cooperation of guide rails and bearings, and the wear of the guide rails and bearings will cause the protection cover to interfere with the barrel cover. The utility model provides an injection molding machine nozzle protection cover device which can clean waste materials without being equipped with guide rails and bearings.

[0005] In order to solve the above technical problems, the utility model is solved by the following technical solutions:

[0006] A nozzle protective cover device for an injection molding machine comprises a protective cover body, which is fixed to a head plate of the injection molding machine. Slots are arranged on both sides of the protective cover body, protective swing doors are hingedly arranged on the slots, a visual window with a transparent sheet for observing an internal screw is arranged on the protective swing door, and a limiting mechanism for automatically opening the limited protective swing door is arranged between the protective swing door and the side wall of the protective cover body.

[0007] By adopting the above scheme, a groove is opened on the side wall of the existing protective cover body, and a protective swing door is hinged. The protective swing door has a visual window with a transparent sheet, which is convenient for the operator to observe the condition of the screw inside the protective cover body. When the protective swing door is opened, the waste near the nozzle can be directly taken out. Therefore, the protective cover body does not need to be moved, and there is no need to set guide rails and bearings, and there will be no subsequent interference with the barrel cover.

[0008] Preferably, the limiting mechanism includes a mounting bar protruding from the inner wall of the slot, a magnet fixed to the mounting bar, and a metal pad fixed to a side of the protective swing door away from the hinged side and attracted by the magnet when the protective swing door is closed.

[0009] By adopting the above scheme, through the adsorption of the magnet and the metal pad, the protective swing door is in a closed state on the protective cover body without the action of external force. The operator needs to apply a little external force to the protective swing door to drive it to open.

[0010] Preferably, the protective swing door is hingedly connected to the protective cover body through a quick-release assembly.

[0011] Preferably, the quick-release assembly includes mating blocks protruding parallel to the inner wall of the groove, a fixed pin protruding toward the direction of the protective swing door on any one of the mating blocks and rotatably engaged with one end of the protective swing door, and an elastic pin elastically and telescopically arranged on the protective swing door and rotatably engaged with the mating block away from the fixed pin when extended, and the elastic pin is provided with a driving member for facilitating its extension and retraction.

[0012] By adopting the above scheme, the operator only needs to turn the driving part to drive the elastic pin to retract, so that one end of the protective swing door can be quickly rotated and plugged with the fixed pin. After the other end is aligned, the driving part is released, and the elastic pin is extended to rotate and plug into the matching block without a fixed pin. When disassembling, the protective swing door can be quickly removed by simply retracting the elastic pin, which is convenient for disassembly and assembly.

[0013] Preferably, the driving member is a toggle block vertically arranged on the side wall of the elastic pin.

[0014] By adopting the above solution, the setting of the toggle block makes it easier for the hand to apply force to toggle the elastic pin.

[0015] Preferably, the transparent sheet is fixed to the side of the protective swing door facing the closing direction by screws on all sides.

[0016] By adopting the above solution, the transparent sheet can be detachably arranged on the protective swing door, and the transparent sheet can be quickly and conveniently replaced by opening the protective swing door.

[0017] Preferably, the protective cover body is fixed to the injection molding machine head plate by an "L"-shaped support angle iron, and the two mutually perpendicular sections of the support angle iron are respectively fixedly connected to the injection molding machine head plate and the lower end surface of the top plate of the protective cover body by screws.

[0018] The utility model adopts the above technical scheme, and has remarkable technical effects: a groove is opened on the side wall of the existing protective cover body, and a protective swing door is hinged, the protective swing door has a visual window with a transparent sheet, which is convenient for operators to observe the condition of the screw inside the protective cover body; when the protective swing door is opened, waste materials near the material nozzle can be directly taken out, eliminating the existing guide rails and bearings, and the transparent sheet can be quickly disassembled and replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is an axonometric view of an injection molding machine nozzle protection cover device when the protection swing door is closed.

[0020] Figure 2-Figure 3 This is an axonometric view of a nozzle protection cover device of an injection molding machine of this embodiment when the protection swing door is opened;

[0021] Figure 4 yes Figure 3 A magnified image of A;

[0022] Figure 5 It is an axonometric view of the protective swing door of this embodiment.

[0023] The names of the parts indicated by the numerical labels in the above drawings are as follows: 1. Protective cover body; 101. Slot; 2. Protective swing door; 201. Visual window; 202. Socket; 3. Transparent sheet; 4. Metal pad; 5. Mounting bar; 6. Magnet; 7. Support angle iron; 8. Waist-shaped hole; 9. Hexagon socket screw; 10. Matching block; 11. Fixed pin; 12. Elastic pin; 13. Toggle block; 14. Spring; 15. Mounting block; 16. Matching hole. DETAILED DESCRIPTION

[0024] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0025] Example

[0026] A nozzle protection cover device for an injection molding machine, referring to Figures 1 to 5 As shown, it includes a protective cover body 1, grooves 101 are set on both sides of the protective cover body 1, and a protective swing door 2 is hingedly set on the groove 101. The protective swing door 2 is provided with a visual window 201 with a transparent sheet 3 and used to observe the internal screw. The transparent sheet 3 is fixed to the side of the protective swing door 2 facing the closing direction by screws on all sides. A limiting mechanism for automatically opening the limited protective swing door 2 is set between the protective swing door 2 and the side wall of the protective cover body 1. The limiting mechanism includes a mounting bar 5 protruding from the inner wall of the groove 101, a magnet 6 fixed on the mounting bar 5, and a metal pad 4 fixed on the side of the protective swing door 2 away from the hinged side and adsorbed by the magnet 6 when the protective swing door 2 is closed, and the metal pad 4 is made of iron block.

[0027] The setting of the protective swing door 2 not only facilitates the replacement of the transparent sheet 3, but also exposes the material nozzle without moving the protective cover body 1, which is very convenient for cleaning the waste near the material nozzle. The protective cover body 1 is fixed to the injection molding machine head plate through an "L"-shaped support angle iron 7. The two perpendicular sections of the support angle iron 7 are respectively fixedly connected to the injection molding machine head plate and the lower end surface of the top plate of the protective cover body 1 by screws. Among them, the support angle iron 7 connected to the injection molding machine head plate is provided with a waist-shaped hole 8, and the waist-shaped hole 8 is passed through the hexagon socket screw 9 to be tightly matched with the injection molding machine head plate. The design of the waist-shaped hole 8 can fine-tune the position of the protective cover body 1 on the injection molding machine head plate.

[0028] In order to facilitate the disassembly and assembly of the protective swing door 2, the protective swing door 2 is hinged to the protective cover body 1 through a quick-install component. Figure 3-4 As shown, the quick-install assembly includes a matching block 10 protruding parallel to the inner wall of one side of the slot 101 perpendicular to the mounting bar 5, and a plug hole 202 is symmetrically arranged at each end of the protective swing door 2. A fixed pin shaft 11 is protruding toward the protective swing door 2 on any matching block 10 and is rotatably plugged with the plug hole 202 at one end of the protective swing door 2. A matching hole 16 is arranged on the other matching block 10, and a plug hole is elastically arranged on the protective swing door 2 to pass through the protective swing door 2 when extended and away from the fixed pin shaft 11. 202 and an elastic pin shaft 12 which is rotatably plugged and matched with the matching hole 16, a mounting block 15 with a mounting groove is fixed on the protective swing door 2, the elastic pin shaft 12 is partially arranged in the mounting groove and partially extends out of the mounting groove, the elasticity of the elastic pin shaft 12 is controlled by the spring 14 sleeved thereon, and a driving member is arranged on the elastic pin shaft 12 for driving the extension and retraction thereof, the driving member is a toggle block 13 which is vertically arranged on the side wall of the elastic pin shaft 12, and a through groove is arranged on one side of the mounting groove for the toggle block 13 to flexibly penetrate and move.

[0029] The protective swing door 2 has a visual window 201 with a transparent sheet 3, which is convenient for the operator to observe the condition of the screw inside the protective cover body 1. When the protective swing door 2 is opened, the waste near the nozzle can be directly taken out. Therefore, the protective cover body 1 does not need to be moved, and there is no need to set guide rails and bearings, and there will be no subsequent interference with the barrel cover.

[0030] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A nozzle protective cover device for an injection molding machine, comprising a protective cover body (1), characterized in that: The protective cover body (1) is fixed on the head plate of the injection molding machine, and slots (101) are arranged on both sides of the protective cover body (1). A protective swing door (2) is hingedly arranged on the slot (101), and a visual window (201) with a transparent sheet (3) and used for observing the internal screw is arranged on the protective swing door (2). A limiting mechanism for automatically opening the limited protective swing door (2) is arranged between the protective swing door (2) and the side wall of the protective cover body (1).

2. The nozzle protection cover device of an injection molding machine according to claim 1, characterized in that: The limiting mechanism comprises a mounting stop bar (5) protruding from the inner wall of the slot (101), a magnet (6) fixed to the mounting stop bar (5), and a metal pad (4) fixed to a side of the protective swing door (2) away from the hinged side and adsorbed by the magnet (6) when the protective swing door (2) is closed.

3. The nozzle protection cover device of an injection molding machine according to claim 1, characterized in that: The protective swing door (2) is hingedly matched with the protective cover body (1) via a quick-install component.

4. The nozzle protection cover device of an injection molding machine according to claim 3, characterized in that: The quick-install assembly comprises a matching block (10) protruding in parallel on the inner wall of the slot (101), a fixed pin (11) protruding on any matching block (10) in the direction of the protective swing door (2) and rotatably plugged with one end of the protective swing door (2), and an elastic pin (12) elastically and telescopically arranged on the protective swing door (2) and capable of rotatably plugged with the matching block (10) away from the fixed pin (11) when extended, and a driving member for driving the elastic pin (12) to extend and retract.

5. The nozzle protection cover device of an injection molding machine according to claim 4, characterized in that: The driving member is a toggle block (13) vertically arranged on the side wall of the elastic pin shaft (12).

6. The nozzle protection cover device of an injection molding machine according to claim 1, characterized in that: The transparent sheet (3) is fixed to the side of the protective swing door (2) facing the closing direction by screws around its periphery.

7. The nozzle protection cover device of an injection molding machine according to claim 1, characterized in that: The protective cover body (1) is fixed to the head plate of the injection molding machine via an L-shaped support angle iron (7), and two mutually perpendicular sections of the support angle iron (7) are respectively fixedly connected to the head plate of the injection molding machine and the lower end surface of the top plate of the protective cover body (1) via screws.

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