Hot cutting machine for plastic injection molding part

Abstract

The utility model relates to the field of plastic injection molding, in particular to a plastic injection molding part hot cutting machine which comprises a heightening table, a clamping mechanism used for installing and fixing an injection molding part is installed at the upper end of the heightening table, and the plastic injection molding part hot cutting machine further comprises a hot cutting mechanism used for conducting hot cutting and grinding on the injection molding part. According to the device, before hot cutting treatment is conducted on a water gap of an injection molding part, a first screw rod is rotated according to the size of the injection molding part, and through threaded connection between the first screw rod and a sliding upper extending frame and sliding connection between the sliding upper extending frame and a heightening table, the sliding upper extending frame can move after the first screw rod is rotated; in this way, the hot cutting position of the hot cutter is adjusted, and the device can be suitable for injection molding parts of most sizes.

Description

Technical Field

[0001] The utility model relates to the field of plastic injection molding, in particular to a plastic injection molding part hot cutting machine. Background Art

[0002] Plastic injection molding machine is a main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastics or thermosetting materials. After the plastic injection molding is completed, the molded parts will generally have residual sprues produced by the injection molding.

[0003] After searching the patent document with the announcement number CN218505119U, the patent document discloses "a plastic injection molding hot cutting machine, which is provided with a table, and a cutter structure for cutting the injection molding nozzle is installed in the middle of the table, and the cutter structure includes a knife sleeve and a ring knife located inside the knife sleeve. A cylinder is provided on the top of the table to drive the electric heating plate to descend, and the electric heating plate squeezes the injection molding onto the blade of the ring knife to achieve hot cutting operation. Compared with manual cutting of the injection molding nozzle, the cross section of the cut is more neat and flat when the injection molding is hot cut by the machine, which can greatly improve the processing efficiency of the injection molding, and the structure of the machine is simple, and it does not need to use a more expensive mold with in-mold hot cutting technology, thereby reducing the production cost of the injection molding";

[0004] When the above-mentioned device performs hot cutting on the sprue of the injection molded part, due to the fixed setting of the annular knife, it is difficult for the device to operate on injection molded parts of smaller or larger sizes. If the device is forced to operate on injection molded parts of smaller sizes, it is easy for the sprue of the injection molded part of smaller sizes to be difficult to completely cut off. Utility Model Content

[0005] The purpose of the utility model is to provide a plastic injection molding hot cutting machine in order to solve the above problems.

[0006] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0007] A plastic injection molded part hot cutting machine comprises a raising platform, a clamping mechanism for mounting and fixing the injection molded part is installed on the upper end of the raising platform, and a hot cutting mechanism for hot cutting and grinding the injection molded part;

[0008] The hot cutting mechanism includes a first screw rod, which is rotatably connected to the inside of one side of the raising platform, and the outer periphery of the first screw rod is threadedly connected to a sliding upper extension frame, and the upper end of the sliding upper extension frame is equipped with a first electric push rod, and a lifting frame is fixed to the telescopic end of the first electric push rod, and a hot cutting knife is fixed to the rear end of the lifting frame, and an electric heating frame is installed inside the hot cutting knife, and a material receiving frame is arranged in the middle of the raising platform, and the inner part of the other side of the raising platform is rotatably connected to a second screw rod, and the outer periphery of the second screw rod is threadedly connected to a sliding block, and a first motor is installed on the upper end of the sliding block, and a grinding wheel is fixed to the output end of the first motor.

[0009] Preferably, the sliding upper extension frame and the sliding block are both slidably connected to the raising platform.

[0010] Preferably, the material receiving frame is slidably connected to the raising platform, and a handle is provided at the front end of the material receiving frame.

[0011] Preferably: the clamping mechanism includes a carrier frame, the carrier frame is arranged on the rear side of the material receiving frame, and the carrier frame is fixed to the raising platform, the upper end of the carrier frame is internally rotatably connected to a third screw rod, the outer periphery of the third screw rod is threadedly connected to a sliding frame, a second electric push rod is installed in the middle of the sliding frame, a second motor is installed at the telescopic end of the second electric push rod, and clamping disks are provided at the output end of the second motor and the upper end surface of the bottom of the carrier frame.

[0012] Preferably, the sliding frame is slidably connected to the bearing frame, and the bearing frame is provided with a long through slot corresponding to the second electric push rod.

[0013] Preferably, the upper end surface of the bottom of the support frame is slidably connected to the corresponding clamping disc, and the corresponding end surfaces of the two clamping discs are both provided with a rubber layer.

[0014] The beneficial effects compared with the prior art are as follows:

[0015] Before hot cutting the sprue of an injection molded part, this device rotates the first screw according to the size of the injection molded part itself, and through the threaded connection between the first screw and the sliding upper extension frame and the sliding connection between the sliding upper extension frame and the raising platform, the sliding upper extension frame can be moved after the first screw is rotated, thereby moving the hot cutting knife at the rear end of the lifting frame, thereby adjusting the hot cutting position of the hot cutting knife, thereby making the device applicable to injection molded parts of most sizes, and then through the threaded connection between the second screw and the sliding block and the sliding connection between the sliding block and the raising platform, the sliding block can be moved after the second screw is rotated, thereby making the grinding wheel stick to the outer wall of the injection molded part after hot cutting, and at the same time starting the first motor to rotate the grinding wheel to grind the outer wall of the injection molded part, thereby avoiding incomplete cutting of the sprue of the injection molded part due to position adjustment errors or small size of the injection molded part. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a structural schematic diagram of a plastic injection molding hot cutting machine described in the utility model;

[0018] Figure 2It is a structural schematic diagram of a hot cutting mechanism of a plastic injection molded part hot cutting machine described in the utility model;

[0019] Figure 3 It is a structural schematic diagram of a lifting frame of a plastic injection molding hot cutting machine described in the utility model;

[0020] Figure 4 It is a structural schematic diagram of a clamping mechanism of a plastic injection molding hot cutting machine described in the utility model;

[0021] Figure 5 It is a partial structural schematic diagram of a clamping mechanism of a plastic injection molded part hot cutting machine described in the utility model.

[0022] The following are the descriptions of the reference numerals:

[0023] 1. Raising platform; 2. Fixing mechanism; 21. Base frame; 22. Fixing bolt; 3. Hot cutting mechanism; 31. First screw rod; 32. Sliding extension frame; 33. First electric push rod; 34. Lifting frame; 35. Hot cutting knife; 36. Electric heating frame; 37. Material receiving frame; 38. Second screw rod; 39. Sliding block; 310. First motor; 311. Grinding wheel; 4. Clamping mechanism; 41. Carrying frame; 42. Third screw rod; 43. Sliding frame; 44. Second electric push rod; 45. Second motor; 46. Clamping plate. DETAILED DESCRIPTION

[0024] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 by specific circumstances.

[0026] The utility model is further described below in conjunction with the accompanying drawings:

[0027] like Figure 1-Figure 5 As shown, a plastic injection molded part hot cutting machine includes a raising platform 1, a fixing mechanism 2 is installed at the lower end of the raising platform 1, a clamping mechanism 4 for installing and fixing the injection molded parts is installed at the upper end of the raising platform 1, and also includes a hot cutting mechanism 3 for hot cutting and grinding the injection molded parts.

[0028] In this embodiment, the fixing mechanism 2 includes two base frames 21 , which are fixed to the lower end of the raised platform 1 , and a plurality of fixing bolts 22 are arranged in the middle of the base frames 21 ; the fixing bolts 22 can fix the device to a suitable position.

[0029] In this embodiment, the hot cutting mechanism 3 includes a first screw rod 31, which is rotatably connected to the inside of one side of the raising platform 1, and the outer periphery of the first screw rod 31 is threadedly connected to a sliding upper extension frame 32, and the upper end of the sliding upper extension frame 32 is installed with a first electric push rod 33, and a lifting frame 34 is fixed to the telescopic end of the first electric push rod 33, and a hot cutting knife 35 is fixed to the rear end of the lifting frame 34, and an electric heating frame 36 is installed inside the hot cutting knife 35, and a material receiving frame 37 is arranged in the middle of the raising platform 1, and the material receiving frame 37 is slidably connected to the raising platform 1, and a handle is arranged at the front end of the material receiving frame 37, and a second screw rod 38 is rotatably connected to the inside of the other side of the raising platform 1, and a sliding block 39 is threadedly connected to the outer periphery of the second screw 38, and the sliding upper extension frame 32 and the sliding block 39 are both slidably connected to the raising platform 1, and a first motor 310 is installed on the upper end of the sliding block 39, and a grinding wheel 311 is fixed to the output end of the first motor 310; this device is used for hot cutting of the injection molding nozzle Before processing, the first screw 31 is rotated according to the size of the injection molded part itself, through the threaded connection between the first screw 31 and the sliding upper extension frame 32 and the sliding connection between the sliding upper extension frame 32 and the raising platform 1, when the first screw 31 is rotated, the sliding upper extension frame 32 can be moved, so that the hot cutting knife 35 at the rear end of the lifting frame 34 is moved, so that the hot cutting position of the hot cutting knife 35 can be adjusted, so that the device can be suitable for injection molded parts of most sizes, and then through the threaded connection between the second screw 38 and the sliding block 39 and the sliding connection between the sliding block 39 and the raising platform 1, when the second screw 38 is rotated, the sliding block 39 can be moved, so that the grinding wheel 311 is attached to the outer wall of the injection molded part after the hot cutting, and the first motor 310 is started at the same time to rotate the grinding wheel 311 to grind the outer wall of the injection molded part, thereby avoiding the injection molded part water outlet being not completely cut off due to position adjustment error or small size of the injection molded part.

[0030] In this embodiment, the clamping mechanism 4 includes a carrier frame 41, which is arranged at the rear side of the material receiving frame 37, and the carrier frame 41 is fixed to the raising platform 1, and the inner part of the upper end of the carrier frame 41 is rotatably connected to the third screw rod 42, and the outer periphery of the third screw rod 42 is threadedly connected to the sliding frame 43, and a second electric push rod 44 is installed in the middle of the sliding frame 43, and the sliding frame 43 is slidably connected to the carrier frame 41, and the carrier frame 41 is provided with a long through groove corresponding to the second electric push rod 44, and a second motor 45 is installed at the telescopic end of the second electric push rod 44, and a clamping plate 46 is provided at the output end of the second motor 45 and the upper end surface of the bottom of the carrier frame 41, and the upper end surface of the bottom of the carrier frame 41 is connected to the corresponding clamping plate The disks 46 are slidably connected, and the corresponding end faces of the two clamping disks 46 are provided with a rubber layer; when the device is in operation, the injection molded part is placed on the upper end face of the bottom clamping disk 46, and then the second electric push rod 44 is started, so that the second electric push rod 44 drives the second motor 45 and the clamping disk 46 at the output end of the second motor 45 to descend, so that the two clamping disks 46 clamp and fix the injection molded part, through the threaded connection between the sliding frame 43 and the third screw 42 and the sliding connection between the sliding frame 43 and the supporting frame 41, when the third screw 42 is rotated, the sliding frame 43 can be moved, thereby moving the clamped injection molded part, so that it can cooperate with the hot cutting or grinding of the clamping mechanism 4.

[0031] Working principle: When the device is operating on the injection molded part, the center of the injection molded part is first placed on the upper end surface of the clamping plate 46 at the bottom of the carrier 41, and then the second electric push rod 44 is started, so that the second electric push rod 44 drives the second motor 45 and the clamping plate 46 at the output end of the second motor 45 to descend, so that the two clamping plates 46 clamp and fix the injection molded part, and the injection molded part is clamped by the threaded connection between the sliding frame 43 and the third screw 42 and the sliding connection between the sliding frame 43 and the carrier 41. After the injection molded part is clamped, the electric heating frame 36 starts to preheat, and at the same time, the first screw 31 is rotated according to the size of the injection molded part itself, and the first screw 31 is threadedly connected to the sliding upper extension frame 32 and the sliding connection between the sliding upper extension frame 32 and the raising platform 1. When the first screw 31 is rotated, the sliding upper extension frame 32 can be moved, so that the hot cutting knife 35 at the rear end of the lifting frame 34 is moved, so that the heat of the hot cutting knife 35 is made The cutting position is adjusted, so that the device can be suitable for injection molded parts of most sizes. After the adjustment is completed, the second motor 45 is started, and the second motor 45 drives the injection molded part between the two clamping disks 46 to rotate, so that the hot cutting knife 35 performs hot cutting on the injection molded part water outlet. After the hot cutting is completed, through the threaded connection between the second screw 38 and the sliding block 39 and the sliding connection between the sliding block 39 and the raising platform 1, when the second screw 38 is rotated, the sliding block 39 can be moved, and the grinding wheel 311 is moved in this way, and then the third screw 42 is rotated to move the injection molded part clamped between the two clamping disks 46, so that the grinding wheel 311 is fitted with the outer wall of the injection molded part, and then the first motor 310 is started to rotate the grinding wheel 311, so that the grinding wheel 311 grinds the outer wall of the injection molded part, thereby avoiding the injection molded part water outlet being incompletely cut due to position adjustment errors or small size of the injection molded part.

[0032] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A plastic injection molded part hot cutting machine, comprising a raised platform, the upper end of which is equipped with a clamping mechanism for mounting and fixing the injection molded part, characterized in that: Also included is a hot cutting mechanism for hot cutting and grinding injection molded parts; The hot cutting mechanism includes a first screw, which is rotatably connected to the inside of one side of the raising platform, the outer periphery of the first screw is threadedly connected to a sliding upper extension frame, the upper end of the sliding upper extension frame is equipped with a first electric push rod, the telescopic end of the first electric push rod is fixed with a lifting frame, the rear end of the lifting frame is fixed with a hot cutting knife, the hot cutting knife is equipped with an electric heating frame, a material receiving frame is provided in the middle of the raising platform, the inner part of the other side of the raising platform is rotatably connected to a second screw, the outer periphery of the second screw is threadedly connected to a sliding block, the upper end of the sliding block is equipped with a first motor, and the output end of the first motor is fixed with a grinding wheel.

2. A plastic injection molding hot cutting machine according to claim 1, characterized in that: The sliding upper extension frame and the sliding block are both slidably connected to the raising platform.

3. The plastic injection molding hot cutting machine according to claim 1, characterized in that: The material receiving frame is slidably connected to the raising platform, and a handle is arranged at the front end of the material receiving frame.

4. The plastic injection molding hot cutting machine according to claim 1, characterized in that: The clamping mechanism includes a carrier frame, which is arranged at the rear side of the material receiving frame and fixed to the raising platform. The upper end of the carrier frame is internally rotatably connected to a third screw rod, and the outer periphery of the third screw rod is threadedly connected to a sliding frame. A second electric push rod is installed in the middle of the sliding frame, and a second motor is installed at the telescopic end of the second electric push rod. A clamping disk is provided at the output end of the second motor and the upper end surface of the bottom of the carrier frame.

5. The plastic injection molded parts hot cutting machine according to claim 4, characterized in that: The sliding frame is slidably connected to the supporting frame, and the supporting frame is provided with a long through slot corresponding to the second electric push rod.

6. A plastic injection molded parts hot cutting machine according to claim 4, characterized in that: The upper end surface of the bottom of the carrier frame is slidably connected to the corresponding clamping disc, and the corresponding end surfaces of the two clamping discs are both provided with a rubber layer.

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