TWI702132B - Hot melt fixing machine and buffer hot melt mechanism - Google Patents

Abstract

This creation relates to a hot melt fixing machine, which includes a displacement device and a buffer hot melt mechanism. The displacement device can make the buffer hot melt mechanism move arbitrarily in the space. The buffer hot melt mechanism includes a cylinder, a heating element, a buffer unit and a hot melt head. The heating element is movable along the axial direction of the cylinder and penetrates the cylinder and one end is located in the cylinder. The buffer unit is located in the cylinder body and pushes the heating element toward the cylinder body, while the heating element can push the compression buffer unit toward the cylinder body. The hot melt head is arranged on the heating element. In this way, the hot melt head can achieve the effect of crushing and buffering by compressing the buffer unit by the heating element toward the cylinder, thereby eliminating the length error of the hot melt column, thereby reducing the probability of the hot melt column breaking, and avoiding hard collisions. Cause the parts of the mechanical platform to wear out.

Description

Hot melt fixing machine and buffer hot melt mechanism

This creative department involves a hot-melt fixing machine.

In many fields, it is often necessary to fix electronic components such as flexible circuit boards or light bars on plastic parts. The solution in the prior art is to form a plurality of hot-melt columns on the plastic part, and provide a plurality of perforations on the electronic component. After the perforations are respectively sleeved on the hot-melt columns, the ends of the hot-melt columns are heated to be heat-melted to form a fixed portion with a diameter larger than the perforations, thereby fixing the electronic component on the plastic part .

Please refer to FIG. 6, because the surface of the plastic part A has irregularities and the hot-melt pillars B are evenly dispersed everywhere, a mold 90 with an outer shape matching the plastic part A must be used for traditional heating. A plurality of hot melt heads 91 are formed on the mold 90. The mold 90 completely corresponds to the appearance design of the plastic part A, and the number, position, and height difference of the hot melt heads 91 completely correspond to all the hot melt columns B. After the placement of the electronic components is completed, the mold 90 and the hot melt head 91 begin to heat up. After reaching the working temperature, the mold 90 moves downwards, and then the hot-melt heads 91 respectively abut the hot-melt pillars B, and gradually push down to heat each hot-melt pillar B downwards. After the hot-melt process is completed, the mold 90 and the hot-melt head 91 begin to cool, and the hot-melt columns B are cooled and solidified to form a spherical end, so that the electronic component is fixed on the plastic part A.

However, the traditional method of heat-melting with the mold 90 has the following disadvantages:

First, plastic injection components such as plastic part A will have some errors during the manufacturing process, causing the hot melt column B in the same place between different plastic parts A to be longer or shorter; however, the mold The tool 90 pushes downwards with a fixed displacement amount, so during mass production, some of the hot melt columns B of the plastic part A may be crushed due to length errors. In addition, the hot melt head 91 abuts against the hot melt column B and pushes against each other hard (because the hot melt column B is not melted instantaneously), so the parts of the entire mechanical platform will be consumed more.

Second, the traditional mold 90 must correspond to the entire plastic part A and all the hot melt columns B, so it is often bulky. This not only occupies space, but also causes slow heating and cooling of the mold 90, thereby reducing production efficiency; and because of its large surface area, it is easy to rust, which increases maintenance costs.

Third, because the appearance of the plastic parts A used in different products is completely different, each type of plastic part A needs a special mold 90 for hot melting. As a result, if a factory needs to produce a variety of products, it must order a variety of molds 90. In other words, the traditional hot-melt method of using the mold 90 has low activity and is not suitable for diversified production, which also increases the production cost due to the customized mold 90.

In view of the aforementioned shortcomings and deficiencies of the prior art, the present invention provides a hot-melt fixing machine and its buffering hot-melt mechanism, which can greatly reduce the probability of the hot-melt column breaking and the loss of parts of the mechanical platform. In addition, the overall volume is small and does not occupy space, and at the same time, it can be heated and cooled quickly, increasing production efficiency.

In order to achieve the above-mentioned creative purpose, the technical means used in this creation is to design a buffer hot-melt mechanism of a hot-melt fixing machine, which is used to abut and heat-melt a hot-melt column of a plastic part; The buffer hot-melt mechanism includes: a cylinder, which includes a first end of the cylinder and a second end of the cylinder; a heating element, which can move along the axial direction of the cylinder and penetrates the cylinder and includes A heating first end, which is located in the cylinder; a heating second end, which selectively penetrates the second end of the cylinder; a connecting member, which is provided on the heating first of the heating element The first end of the cylinder and pass through the cylinder; a buffer unit located in the cylinder and in contact with the heating first end of the heating element; the heating element can face the first end of the cylinder of the cylinder One end pushes and compresses the buffer unit; a hot melt head, which is arranged on the heating second end of the heating element and is located outside the cylinder; the hot melt head is used to abut against and heat-melt the heat of the plastic part Melting column.

In order to achieve the above creative purpose, the technical means used in this creation is to design a hot-melt fixing machine, which is used to carry a plastic part and includes: a first direction, a second direction and a third direction that are perpendicular to each other; A displacement device; a buffer hot melt mechanism as described in any one of claims 1 to 8, which is provided on the displacement device; the displacement device can make the buffer heat melt mechanism along the first direction, the first The two directions and the third direction move relative to the plastic part.

The advantage of this creation is that the heating first end of the heating element is movably inserted into the cylinder, and the buffer unit is used to push the heating first end of the heating element in the cylinder, and the heating element can also be pushed at the same time Compression buffer unit. Thereby, when the hot melt head abuts against the hot melt column of the plastic part, the hot melt head can push the compression buffer unit toward the first end of the cylinder by the heating element to achieve the effect of collapse and buffer, thereby eliminating The length error of the hot-melt column can reduce the probability of the hot-melt column breaking, and can avoid the damage of parts of the mechanical platform due to hard collision. In addition, by moving in all directions through the displacement device, the buffer hot-melt mechanism only needs to correspond to one hot-melt column at a time without corresponding to all the hot-melt columns on the plastic parts at the same time, so the overall volume can be greatly reduced without occupying The space can also be quickly heated and cooled due to its small size, increasing production efficiency. In addition, by moving through each track, you can also allow The same buffer hot-melt mechanism corresponds to all different plastic parts, completely eliminating the cost of traditional custom-made special molds.

Furthermore, in the hot-melt fixing machine and its buffering hot-melting mechanism, the barrel further includes a butting member arranged at the first end of the barrel; and the buffer unit is a spring that abuts against The abutting member of the cylinder and the heating first end of the heating member.

Furthermore, the hot melt fixing machine and its buffer hot melt mechanism further include a hydraulic device connected to the first end of the cylinder; the buffer unit is liquid and circulates in the hydraulic The device and the cylinder.

Furthermore, the hot-melt fixing machine and its buffer hot-melt mechanism further include a pneumatic device connected to the first end of the cylindrical body; the buffer unit is a gas and flows through the pressure The device and the cylinder.

Furthermore, the hot-melt fixing machine and its buffering hot-melting mechanism further include a heat insulating member arranged between the heating first end of the heating member and the buffer unit.

Furthermore, in the hot melt fixing machine and its buffer hot melt mechanism, the hot melt head is detachably connected to the heated second end of the heating element.

Furthermore, in the hot-melt fixing machine and its buffer hot-melt mechanism, the hot-melt head includes a hot-melt first end connected to the heating second end of the heating element; and a hot-melt second end , An arc-shaped groove is formed on its end surface, and the arc-shaped groove is recessed toward the hot melt first end.

Further, in the hot-melt fixing machine and its buffer hot-melt mechanism, the heating element further includes an inner piece; the connecting piece is arranged on the inner piece; an outer piece is sleeved on the inner piece and It is attached to the inner wall surface of the cylinder; the hot melt head is arranged on the outer part, and a space is sandwiched between the hot melt head and the inner part.

Furthermore, in the hot melt fixing machine and its buffer hot melt mechanism, the first direction and the second direction extend horizontally, and the third direction extends vertically; the displacement device includes a A base; a first rail, which is provided on the base and extends along the first direction; a frame, the bottom end of which is provided on the base and extends upward; a second rail, which is provided on the The top end of the frame body extends along the second direction; a third track is movably arranged on the second track along the second track and extends along the third direction; a bearing seat, which can It is movably arranged on the first track along the first track and used for supporting the plastic part; the buffer hot-melt mechanism is movably arranged on the third track along the third track.

D1: First direction

D2: second direction

D3: Third party

C: Plastic parts

10: Buffer hot melt mechanism

11: cylinder

111: The first end of the cylinder

112: The second end of the barrel

113: Abutment

12: Heating parts

121: Heat the first end

122: Heat the second end

123: Inside

124: Outsourcing

13: Connection

14: Buffer unit

15: Insulation

16: hot melt head

161: curved groove

20: displacement device

21: Pedestal

22: first track

23: Frame

24: second track

25: third track

26: bearing seat

A: Plastic parts

B: Hot melt column

90: Mould

91: Hot melt head

Figure 1 is a perspective view of the hot-melt fixing machine of this creation.

Figure 2 is a three-dimensional appearance view of the buffer hot melt mechanism created by this invention.

Figure 3 is an exploded view of the components of the buffer hot-melt mechanism created by this invention.

Fig. 4 and Fig. 5 are the side view cross-sectional action diagrams of the buffer hot melt mechanism of this creation.

Figure 6 is a schematic diagram of the use of a hot melt mold in the prior art.

In the following, in conjunction with the drawings and preferred embodiments of this creation, the technical means adopted by this creation to achieve the predetermined creation purpose are further explained.

Please refer to FIG. 1 and FIG. 2, the hot-melt fixing machine of the present invention is used to carry a plastic part C, and is used to abut and heat-melt a hot-melt column of the plastic part C. The hot melt fixing machine includes a buffer hot melt mechanism 10, a displacement device 20, a first direction D1, a second direction D2, and a third direction D3.

Please further refer to Figures 3, 4 and 5, the buffer hot-melt mechanism 10 is provided on the displacement device 20 and includes a cylinder 11, a heating element 12, a connecting element 13, a buffer unit 14, and a heat insulating element 15. And a hot melt head 16.

The barrel 11 includes a barrel first end 111 and a barrel second end 112. In addition, in this embodiment, the barrel 11 further includes an abutting member 113. The abutting member 113 is provided at the first end 111 of the cylinder and protrudes toward the radially inner side of the cylinder 11, that is to say, the abutting member 113 slightly covers the opening of the first end 111 of the cylinder. It can be completely closed but not necessarily Completely closed; but not limited to this, and there may be no abutting member 113.

The heating element 12 is movable along the axial direction of the cylinder 11 and passes through the cylinder 11 and includes a heating first end 121 and a heating second end 122. The heating first end 121 is located in the cylinder 11. The heated second end 122 selectively penetrates the second end 112 of the cylinder 11.

The connecting member 13 is provided at the heating first end 121 of the heating member 12 and passing through the first end 111 of the barrel 11, and the connecting member 13 moves with the heating member 12 relative to the barrel 11. The connecting member 13 is used to connect the power source and enable the heating member 12 to be energized and generate heat.

Specifically, in this embodiment, the heating element 12 further includes an inner part 123 and an outer part 124. The connecting piece 13 is arranged on the inner piece 123 of the heating piece 12, and the outer piece 124 is sleeved on the radially outer side of the inner piece 123 and is attached to the inner wall surface of the cylinder 11. That is to say, in fact, the inner piece 123 is energized and heated via the connecting piece 13, and then contact is conducted to the outer covering piece 124; and the inner piece 123 and the cylinder 11 are not in direct contact, but indirectly contacted through the outer covering 124. In addition, the connecting member 13 and the inner member 123 can also be integrally formed, but not limited to this.

The specific structural relationship between the heating element 12 and the connecting element 13 is not limited to this. For example, the heating element 12 may be integrally formed without the inner 123 and the outer covering 124, and in this case, the connecting piece 13 may also be integrally formed with the heating element 12.

The buffer unit 14 is located in the cylinder 11 and is in contact with the heating first end 121 of the heating element 12, and pushes the heating first end 121 of the heating element 12 toward the second end 112 of the cylinder, and the heating element 12 can also face the cylinder. The first end 111 pushes the compression buffer unit 14 backward. Specifically, in this embodiment, the buffer unit 14 is a compression spring that abuts against the abutting member 113 of the cylinder 11 and the heating first end 121 of the heating member 12.

However, it is not limited to this. For example, the present creation may further include a hydraulic device which is connected to the first end 111 of the cylinder 11 and the buffer unit 14 is fluidly circulated in the hydraulic device and the cylinder 11. Alternatively, the present creation may further include a pneumatic device, which is connected to the first end 111 of the cylinder 11, and the buffer unit 14 is air circulated in the pneumatic device and the cylinder 11. In other words, the buffer unit 14 does not need to be a spring, but can also be buffered by air pressure or hydraulic pressure; and further speaking, in an embodiment that uses air pressure or hydraulic pressure, it does not need to include a pneumatic device or Hydraulic device, in this case, the first end 111 of the cylinder itself is closed and a closed space is formed between the first heating end 121 of the heating element 12, and the liquid or gas is set in the closed space as a buffer Unit 14.

The heat insulating member 15 is provided between the heating first end 121 of the heating member 12 and the buffer unit 14, and the connecting member 13 penetrates the heat insulating member 15. That is to say, in this embodiment, the buffer unit 14 abuts on the heat insulating member 15 and indirectly pushes the heating member 12 through the heat insulating member 15 to prevent temperature from affecting the function of the buffer unit 14. However, it is not limited to this, and there may be no heat insulation member 15 and the buffer unit 14 directly contacts and abuts the heating member 12.

The hot melt head 16 is provided at the second heating end 122 of the heating element 12 and located outside the cylinder 11. The hot melt head 16 is used to abut against and heat melt the hot melt column of the plastic part C. Specifically, the hot melt head 16 is detachably connected to the heating second end 122 of the heating element 12 (as shown in FIG. 3), which is more convenient for cleaning or maintenance, but not limited to this. The melting head 16 may not be separated from the heating element 12. Furthermore, in this embodiment, the hot melt head 16 is connected to the outer part 124 of the heating element 12, and a space 17 is sandwiched between the hot melt head 16 and the inner part 123. That is to say, the inner piece 123 does not directly contact the hot melt head 16, but heat energy is transferred to the hot melt head 16 through the outer part 124 after being energized; however, it is not limited to this. In other embodiments The two can also be in direct contact with each other, and even the hot melt head 16 and the heating element 12 can be integrally formed.

In addition, in this embodiment, the hot melt head 16 includes a hot melt first end and a hot melt second end. The first end of the hot melt is connected to the second end 122 of the heating element 12; the end surface of the second end of the hot melt is formed with an arc-shaped groove 161, and the arc-shaped groove 161 is recessed toward the first end of the hot melt. In other words, the hot melt head 16 uses the arc-shaped groove 161 to abut against the top of the hot-melt column and heat it, so that the hot-melt column will form the same shape as the arc-shaped groove 161 after the heat is melted and cooled. Fastener. In this way, the shape of all the hot melt columns can be uniform and beautiful.

Please further refer to FIG. 1, the first direction D1, the second direction D2, and the third direction D3 are perpendicular to each other, and specifically, in this embodiment, the first direction D1 and the second direction D2 extend horizontally, and the third direction D3 extends vertically. But not limited to this, the first direction D1, the second direction D2, and the third direction D3 only need to be perpendicular to each other, so as to be able to move in space along the first direction D1, the second direction D2, and the third direction D3. Move to any location.

The displacement device 20 can make the buffer hot melt mechanism 10 move relative to the plastic part C along the first direction D1, the second direction D2, and the third direction D3. Specifically, in this embodiment, the displacement device 20 includes a base 21, a first rail 22, a frame body 23, a second rail 24, a third rail 25 and a bearing seat 26.

The first rail 22 is provided on the base 21 and extends along the first direction D1. The bottom end of the frame body 23 is arranged on the base 21 and extends upward. The second rail 24 is provided at the top of the frame body 23 and extends along the second direction D2. The third track 25 is movably provided on the second track 24 along the second track 24 and extends along the third direction D3. The supporting base 26 is movably disposed on the first rail 22 along the first rail 22 and is used to carry the plastic component C. The buffer hot-melting mechanism 10 is arranged on the third rail 25 to move along the third rail 25. Thereby, the buffer hot-melt mechanism 10 can move up and down by the third rail 25, and move left and right by the second rail 24, while the plastic part C is placed on the carrier 26 and moved back and forth along the first rail 22. . In this way, the buffer hot melt mechanism 10 can correspond to any hot melt column on the hot melt plastic part C. But displacement The structure of the device 20 is not limited to the above. It can also be a mechanical arm that clamps and moves the buffering hot-melting mechanism 10 so as to be displaced and hot-melt corresponding to any hot-melt column.

With the above structure, when the hot melt head 16 abuts against the hot melt column of the plastic part C, the hot melt head 16 can push the compression buffer unit 14 toward the first end 111 of the cylinder 11 by the heating element 12 Achieve the effect of collapse buffer, so as to eliminate the length error of the hot melt column, thereby reducing the probability of the hot melt column breaking, and avoiding the damage of the parts of the mechanical platform due to hard collision. In addition, by moving in various directions through the displacement device 20, the buffer hot-melting mechanism 10 only needs to correspond to one hot-melt column at a time and does not need to correspond to all the hot-melt columns on the plastic part C at the same time, so the overall volume can be greatly reduced. It does not take up space, and because of its small size, it can be heated and cooled quickly, increasing production efficiency. In addition, by moving through each track, the same cushioning hot-melting mechanism 10 can also correspond to all different plastic parts C, completely eliminating the cost of traditional custom-made special molds.

The above is only the preferred embodiment of this creation, and does not impose any formal restriction on this creation. Although this creation has been disclosed as above in preferred embodiments, it is not intended to limit this creation. Any technical field has Generally knowledgeable persons, without departing from the scope of this creative technical solution, can use the technical content disclosed above to make slight changes or modification into equivalent embodiments with equivalent changes, but any content that does not deviate from this creative technical solution is based on this Any simple modifications, equivalent changes and modifications made to the above embodiments by the technical essence of the creation still fall within the scope of the technical solution for creation.

D1: First direction

D2: second direction

D3: Third party

C: Plastic parts

10: Buffer hot melt mechanism

20: displacement device

21: Pedestal

22: first track

23: Frame

24: second track

25: third track

26: bearing seat

Claims (10)

A buffer hot-melt mechanism of a hot-melt fixing machine is used to abut against and heat-melt a hot-melt column of a plastic part; the buffer hot-melt mechanism of the hot-melt fixing machine includes a cylinder, which includes a first cylinder End and a second end of a cylinder; a heating element which can move along the axial direction of the cylinder and penetrates the cylinder and includes a heating first end located in the cylinder; a heating second end , Which selectively penetrates the second end of the barrel of the barrel; a connecting member, which is provided at the first heating end of the heating element and penetrates the first end of the barrel of the barrel; a buffer Unit, which is located in the cylinder and is in contact with the first heating end of the heating element; the heating element can push and compress the buffer unit toward the first end of the cylinder; a hot melt head is arranged at The heating second end of the heating element is located outside the barrel; the hot melt head is used to abut and heat the hot melt column of the plastic part. The buffering hot-melting mechanism of the hot-melt fixing machine according to claim 1, wherein the cylinder further includes a butting member disposed at the first end of the cylinder; the buffer unit is a spring that abuts against the The abutting member of the cylinder and the heating first end of the heating member. The buffer hot melt mechanism of the hot melt fixing machine according to claim 1, which further includes a hydraulic device connected to the first end of the cylinder body; the buffer unit is liquid and circulates in the hydraulic device And the cylinder. The buffer hot-melting mechanism of the hot-melt fixing machine according to claim 1, which further includes a pneumatic device connected to the first end of the cylindrical body; the buffer unit is a gas and flows through the pneumatic device And the cylinder. The buffer hot-melt mechanism of the hot-melt fixing machine according to any one of claims 1 to 4, which further includes a heat insulating member provided between the heating first end of the heating member and the buffer unit. The buffer hot melt mechanism of the hot melt fixing machine according to any one of claims 1 to 4, wherein the hot melt head is detachably connected to the heated second end of the heating element. The buffered hot-melting mechanism of the hot-melt fixing machine according to any one of claims 1 to 4, wherein the hot-melt head includes a first hot-melt end connected to the second heated end of the heating element; An arc-shaped groove is formed on the end surface of the hot-melt second end, and the arc-shaped groove is recessed toward the hot-melt first end. The buffered hot-melt mechanism of the hot-melt fixing machine according to any one of claims 1 to 4, wherein the heating element further includes an inner member; the connecting member is provided on the inner member; an outer member is sleeved The inner part is attached to the inner wall of the cylinder; the hot melt head is arranged on the outer cover, and a space is sandwiched between the hot melt head and the inner part. A hot-melt fixing machine for carrying a plastic part and comprising a first direction, a second direction and a third direction perpendicular to each other; a displacement device; as described in any one of claims 1 to 8 The buffer hot-melt mechanism is arranged on the displacement device; the displacement device can make the buffer hot-melt mechanism move relative to the plastic part along the first direction, the second direction and the third direction. The hot melt fixing machine according to claim 9, wherein the first direction and the second direction extend horizontally, and the third direction extends vertically; The displacement device includes a base; a first track arranged on the base and extending along the first direction; a frame body whose bottom end is arranged on the base and extending upward; and a second track , Which is arranged on the top of the frame and extends along the second direction; a third track, which is movably arranged on the second track along the second track and extends along the third direction; a A bearing seat, which is movably arranged on the first track along the first track and used to carry the plastic part; the buffer hot-melt mechanism is movably arranged on the third track along the third track .

Images