Heating and pressing device between plastic parts

Abstract

The utility model provides a heating and pressing device between plastic parts, which comprises a bottom box, a positioning base used for limiting the positions of the plastic parts is arranged on the upper surface of the bottom box, a top plate is arranged right above the bottom box, four guide columns are arranged between the top plate and the bottom box, a carrier plate is arranged between the bottom box and the positioning base, and the carrier plate is connected with the positioning base. Guide holes are formed in the four corners of the upper surface of the carrier plate, the guide columns penetrate through the guide holes, an air cylinder is installed on the upper surface of the top plate, the movable end of the air cylinder extends to the lower side of the top plate and is fixedly connected with the carrier plate, and a heating base is installed on the lower surface of the carrier plate. One side face of the heating base is provided with two installation holes used for storing electric heating pipes, the lower surface of the heating base is provided with a hot melting head through a connecting piece, and the electric heating pipe hot melting device has the advantages that production efficiency is improved, operators are replaced, and product quality is improved.

Description

Technical Field

[0001] The utility model relates to a heating and pressing device between plastic parts, belonging to the field of plastic parts processing. Background Art

[0002] Plastic parts (see attached Figure 8 ) After injection molding, the plastic parts need to be assembled with other parts or other parts by hot melt. The principle of hot melt is: there is a local protrusion on the plastic part called a hot melt column, and there is a corresponding hole on the part to be assembled. The hot melt column passes through the hole, and the hot melt column is melted and reshaped by heating, thereby fastening the other part. The current method of use is mainly to manually melt the hot melt column with an electric soldering iron and reshape it to fasten the parts. Workers use electric soldering irons for a long time, and it is easy to have accidents where the electric soldering iron burns the workers. Products and parts assembled by this method have a large product volume due to different manual techniques. Some products do not meet the assembly requirements, the scrap rate is high, and the manual processing efficiency is low. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a heating and pressing device between plastic parts to solve the problems raised in the above-mentioned background technology. The present invention improves production efficiency, replaces operators, and improves product quality.

[0004] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a heating and pressing device between plastic parts, comprising a bottom box, a positioning base for limiting the position of the plastic part is installed on the upper surface of the bottom box, a top plate is provided directly above the bottom box, four guide columns are installed between the top plate and the bottom box, a carrier plate is provided between the bottom box and the top plate, guide holes are provided at four corners of the upper surface of the carrier plate, the guide columns pass through the guide holes, a cylinder is installed on the upper surface of the top plate, the movable end of the cylinder extends to the lower side of the top plate and is connected and fixed to the carrier plate, a heating seat is installed on the lower surface of the carrier plate, two mounting holes for storing electric heating tubes are provided on one side of the heating seat, and a hot melt head is installed on the lower surface of the heating seat through a connecting piece.

[0005] Furthermore, the connecting part includes a limit plate, and a side of the heating seat facing away from the hot melt head is recessed downward to form a groove, a limit plate is inserted in the groove, a plug-in groove is provided on one side of the limit plate, the hot melt head has a T-shaped cross-section, and two small holes are provided on the side of the hot melt head facing the heating seat, and two rectangular holes aligned with the small holes are provided in the area of ​​the heating seat covered by the hot melt head, a rectangular column is inserted in the rectangular hole, a plug-in block is installed on the side of the rectangular column close to the limit plate, the plug-in block is inserted in the plug-in groove, a threaded hole is provided on the side of the rectangular column facing away from the plug-in block, a connecting screw is inserted in the small hole, and one end of the connecting screw is threadedly connected to the threaded hole.

[0006] Furthermore, the cross section of the plug-in slot is in a dovetail shape, the cross section of the plug-in block is in a dovetail shape, and the plug-in block and the rectangular column are an integrally formed structure.

[0007] Furthermore, a heat insulation board is provided between the carrier plate and the heating seat, the heat insulation board is connected and fixed to the carrier plate by a plurality of screws, and the heating seat is installed on the lower surface of the heat insulation board.

[0008] Furthermore, a U-shaped frame is installed on the upper surface of the bottom box, and the top plate is installed at an upper position inside the U-shaped frame.

[0009] Furthermore, a through hole is provided on the upper surface of the top plate, and the movable end of the cylinder passes through the through hole.

[0010] Beneficial effects of the utility model:

[0011] 1. Place the plastic part in the positioning base to limit the position of the plastic part, control the extension and retraction of the cylinder, and drive the carrier plate to move downward. At this time, the structure formed by the heating seat and the hot melt head also descends, so that the hot melt head contacts the hot melt column on the plastic part. The heated hot melt head heats the hot melt column until it melts and reshapes it under the pressure applied by the cylinder. Compared with manual processing, it is safer, unifies the assembled plastic products, makes the assembly of plastic products more beautiful, improves production efficiency, replaces operators, and improves product quality.

[0012] 2. Insert the rectangular column into the rectangular hole on the heating seat so that the plug-in block installed at one end of the rectangular column is in the groove, then insert the limit plate into the groove, and insert the plug-in block into the plug-in slot. After installing the heating seat at the bottom of the insulation board, the heating seat and the insulation board jointly limit the position of the limit plate, and pass the connecting screws through the small holes and screw them into the threaded holes on the rectangular column to complete the assembly of the heating seat and the hot melt head. When the connecting screws cannot be disassembled using conventional tools due to rapid oxidation and rusting in a high temperature environment, separate the heating seat and the insulation board and then pull the limit plate out of the groove until the plug-in block is pulled out of the plug-in slot, thereby facilitating the separation of the rectangular column and the heating seat and preventing damage to the heating seat and other components when replacing the hot melt head. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0014] Figure 1 This is a schematic diagram of the structure of a heating and pressing device between plastic parts of the utility model;

[0015] Figure 2 It is a schematic diagram of the assembly of a limit plate, a hot melt head and a heating seat in a heating and pressing device between plastic parts of the utility model;

[0016] Figure 3 It is a three-dimensional diagram of a positioning base in a heating and pressing device between plastic parts of the utility model;

[0017] Figure 4 It is a schematic diagram of assembling a plastic part and a positioning base in a heating and pressing device between plastic parts of the utility model;

[0018] Figure 5 It is a three-dimensional diagram of a limit plate in a heating and pressing device between plastic parts of the utility model;

[0019] Figure 6 It is a schematic diagram of the assembly of a limit plate, a rectangular column and a heating seat in a heating and pressing device between plastic parts of the utility model;

[0020] Figure 7 It is a schematic diagram of the assembly of a plug-in block and a rectangular column in a heating and pressing device between plastic parts of the utility model;

[0021] Figure 8 It is a three-dimensional image of a plastic part;

[0022] In the figure: 1-bottom box, 2-positioning base, 3-U-shaped frame, 4-top plate, 5-cylinder, 6-carrier plate, 7-insulation plate, 8-heating seat, 9-hot melt head, 10-guide column, 11-limiting plate, 12-plug-in slot, 13-mounting hole, 14-connecting screw, 15-threaded hole, 16-rectangular column, 17-plug-in block, 18-groove, 19-plastic part. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] See also Figure 1 , Figure 3 , Figure 4 and Figure 8The utility model provides a technical solution: a heating and pressing device between plastic parts, comprising a bottom box 1, a positioning base 2 for limiting the position of a plastic part 19 is installed on the upper surface of the bottom box 1, a top plate 4 is arranged just above the bottom box 1, four guide columns 10 are installed between the top plate 4 and the bottom box 1, a carrier plate 6 is arranged between the bottom box 1 and the top plate 4, four corners of the upper surface of the carrier plate 6 are provided with guide holes, the guide columns 10 penetrate the guide holes, a cylinder 5 is installed on the upper surface of the top plate 4, the movable end of the cylinder 5 penetrates the through hole opened on the upper surface of the top plate 4 and is connected and fixed with the carrier plate 6, when the cylinder 5 is controlled to be extended and retracted, the cylinder 5 drives the carrier plate 6 to move, at this time, the guide columns 10 slide in the guide holes relative to the carrier plate 6, so as to limit the moving trajectory of the carrier plate 6, a U-shaped frame 3 is installed on the upper surface of the bottom box 1, so that the top plate 4 is installed in the upper position inside the U-shaped frame 3, so that the bottom box 1, the top plate 4 and the U-shaped frame 3 together form a box structure with an opening on one side.

[0025] See also Figure 1 A heating seat 8 is installed on the lower surface of the carrier plate 6, wherein a heat insulation board 7 is provided between the carrier plate 6 and the heating seat 8, and the heat insulation board 7 is connected and fixed to the carrier plate 6 by a plurality of screws. The heating seat 8 is installed on the lower surface of the heat insulation board 7. Under the obstruction of the heat insulation board 7, the heat on the heating seat 8 is prevented from being conducted to the cylinder 5.

[0026] See also Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 7 Two mounting holes 13 for storing electric heating tubes are provided on one side of the heating seat 8. The side of the heating seat 8 facing away from the hot melt head 9 is recessed downward to form a groove 18. A limiting plate 11 is inserted in the groove 18. A plug-in groove 12 with a dovetail-shaped cross section is provided on one side of the limiting plate 11. The hot melt head 9 has a T-shaped cross section. Two small holes are provided on the side of the hot melt head 9 facing the heating seat 8. Two rectangular holes aligned with the small holes are provided in the area of ​​the heating seat 8 covered by the hot melt head 9. A rectangular column 16 is inserted in the rectangular hole. A plug-in block 17 with a dovetail-shaped cross section is installed on the side of the rectangular column 16 close to the limiting plate 11, so that the plug-in block 17 with a structure integrally formed with the rectangular column 16 is inserted in the plug-in groove 12 to complete the plug-in of the limiting plate 11 and the heating seat 8.

[0027] See also Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 7A threaded hole 15 is provided on one side of the rectangular column 16 away from the plug-in block 17, and a connecting screw 14 is inserted into the small hole. One end of the connecting screw 14 is threadedly connected to the threaded hole 15. The rectangular column 16 is inserted into the rectangular hole on the heating seat 8, so that the plug-in block 17 installed at one end of the rectangular column 16 is in the groove 18, and then the limit plate 11 is inserted into the groove 18, and the plug-in block 17 is inserted into the plug-in groove 12. After the heating seat 8 is installed at the bottom of the insulation board 7, the heating seat 8 and the insulation board 7 jointly realize the limit Due to the position restriction of the plate 11, the connecting screw 14 passes through the small hole and is screwed into the threaded hole 15 on the rectangular column 16 to complete the assembly of the heating seat 8 and the hot melt head 9. When the connecting screw 14 cannot be disassembled using conventional tools due to rapid oxidation and rusting in a high-temperature environment, the heating seat 8 and the insulation plate 7 are separated and the limit plate 11 is pulled out of the groove 18 until the plug-in block 17 is pulled out of the plug-in slot 12, thereby facilitating the separation of the rectangular column 16 and the heating seat 8 and preventing damage to the heating seat 8 and other components when replacing the hot melt head 9.

[0028] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A heating and pressing device for plastic parts, comprising a bottom box (1), characterized in that: A positioning base (2) for limiting the position of the plastic part (19) is installed on the upper surface of the bottom box (1); a top plate (4) is provided directly above the bottom box (1); four guide columns (10) are installed between the top plate (4) and the bottom box (1); a carrier plate (6) is provided between the bottom box (1) and the top plate (4); guide holes are provided at four corners of the upper surface of the carrier plate (6); the guide columns (10) pass through the guide holes; a cylinder (5) is installed on the upper surface of the top plate (4); the movable end of the cylinder (5) extends to the lower side of the top plate (4) and is connected and fixed to the carrier plate (6); a heating seat (8) is installed on the lower surface of the carrier plate (6); two mounting holes (13) for storing electric heating tubes are provided on one side of the heating seat (8); a hot melt head (9) is installed on the lower surface of the heating seat (8) through a connecting piece.

2. A heating and pressing device for plastic parts according to claim 1, characterized in that: The connecting member comprises a limiting plate (11), a side of the heating seat (8) facing away from the hot melt head (9) is recessed downward to form a groove (18), the limiting plate (11) is inserted in the groove (18), a side of the limiting plate (11) is provided with a plug-in groove (12), the hot melt head (9) has a T-shaped cross section, and a side of the hot melt head (9) facing the heating seat (8) is provided with two small holes, and the area of ​​the heating seat (8) covered by the hot melt head (9) is provided with two A rectangular hole is provided which is aligned with the small hole. A rectangular column (16) is inserted in the rectangular hole. A plug-in block (17) is installed on a side of the rectangular column (16) close to the limiting plate (11). The plug-in block (17) is inserted in the plug-in slot (12). A threaded hole (15) is provided on a side of the rectangular column (16) which is away from the plug-in block (17). A connecting screw (14) is inserted in the small hole. One end of the connecting screw (14) is threadedly connected in the threaded hole (15).

3. A heating and pressing device for plastic parts according to claim 2, characterized in that: The cross section of the plug-in slot (12) is in the shape of a dovetail, the cross section of the plug-in block (17) is in the shape of a dovetail, and the plug-in block (17) and the rectangular column (16) are an integrally formed structure.

4. A heating and pressing device for plastic parts according to claim 1, characterized in that: A heat insulation board (7) is provided between the carrier board (6) and the heating seat (8); the heat insulation board (7) is connected and fixed to the carrier board (6) by a plurality of screws; and the heating seat (8) is installed on the lower surface of the heat insulation board (7).

5. The device for heating and pressing plastic parts according to claim 1, characterized in that: A U-shaped frame (3) is installed on the upper surface of the bottom box (1), and the top plate (4) is installed at an upper position inside the U-shaped frame (3).

6. The device for heating and pressing plastic parts according to claim 1, characterized in that: The top plate (4) has a through hole on its upper surface, and the movable end of the cylinder (5) passes through the through hole.

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