Hot melting equipment

Abstract

The utility model relates to hot melting equipment, which is used for hot melting screw column holes so as to enable nuts to be embedded in the screw column holes of products in a hot melting mode, the hot melting equipment comprises a hot melting mechanism, a temperature control device and a driving assembly, the hot melting mechanism comprises a plurality of hot melting heads, each hot melting head is provided with a heating flange matched with the screw column hole, and the temperature control device is connected with the driving assembly. The temperature control device comprises a plurality of temperature control boxes, the driving assembly comprises a lifting driving part and a moving plate, each hot melting position is provided with one hot melting head, each hot melting head is connected with the corresponding temperature control box, the hot melting heads are fixed to the moving plate, the moving plate is connected with the lifting driving part, and the lifting driving part is connected with the lifting driving part. The hot melting equipment has the characteristics of stable hot melting quality, convenience in operation and high working efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of hot-melt equipment, in particular to a hot-melt equipment. Background Art

[0002] In the production of plastic parts, it is often necessary to embed nuts into them. The existing method of embedding nuts into plastic parts generally adopts manual nut implantation, that is, the nut is melted into the plastic part after heating with an electric soldering iron. The hot melt quality is related to the hot melt heating temperature. If the hot melt temperature cannot be accurately controlled, the hot melt effect will be unsatisfactory. Specifically, when the temperature of the hot melt head is too low, the hot melt temperature transmitted to the screw column is also low, and the local plastic of the screw column cannot reach the softened state. The nut embedding will rigidly squeeze the screw column and cause the screw column to crack; when the temperature of the hot melt head is too high, the screw column hole softens and deforms, and the nut cannot be embedded; when there are multiple locations where hot melt is required on a plastic part, if the hot melt effect of one of them cannot meet the requirements, the entire product will be scrapped.

[0003] Obviously, traditional manual operation cannot accurately control the hot melt temperature, which will lead to unstable hot melt quality, low work efficiency, and safety hazards in manual high-temperature operations. Therefore, a hot melt equipment is urgently needed to solve the problem of how to accurately control the temperature of each hot melt head and quickly and efficiently realize the hot melt embedment of the nut. Utility Model Content

[0004] In view of this, a hot melt device with stable hot melt quality, convenient operation and high working efficiency is provided.

[0005] A hot melt device is used for hot melting screw column holes so that nuts can be hot melted and embedded in the screw column holes of products, including a hot melt mechanism, a temperature control device and a drive assembly. The hot melt mechanism includes multiple hot melt heads, each of which has a heating flange matching the screw column hole. The temperature control device includes multiple temperature control boxes. The drive assembly includes a lifting drive member and a movable plate. A hot melt head is arranged at each hot melt position, each hot melt head is connected to a corresponding temperature control box, the hot melt head is fixed to the movable plate, and the movable plate is connected to the lifting drive member.

[0006] Furthermore, the temperature control device also includes a heating unit, a temperature sensing wire and a heating wire, the temperature sensing wire and the heating wire are connected to the heating unit, the heating unit is fixed inside the hot melt head, and the hot melt head is connected to the temperature control box through the heating unit, the temperature sensing wire and the heating wire.

[0007] Furthermore, the hot melt head is fixed to the bottom of the movable plate, the temperature control box is arranged on the top of the movable plate, and the movable plate is provided with through holes to form cable channels for the temperature sensing wire and the heating wire.

[0008] Furthermore, the heating flange is located at the bottom of the hot melt head, and the heating flange is in the shape of a hollow inverted truncated cone or an inverted cone. When the heating flange is inserted into the screw column hole, it performs hot melting on the hole wall of the screw column hole.

[0009] Furthermore, the driving assembly also includes an upper fixed plate and a lower fixed plate, the lifting driving member is a cylinder, the cylinder seat of the cylinder is fixed to the upper fixed plate, and the piston rod of the cylinder is fixedly connected to the movable plate to drive the movable plate to move up and down.

[0010] Furthermore, the driving assembly also includes a guide rod, and guide sleeves are provided on the four corners of the movable plate. The guide rod is inserted into the guide sleeve and the upper and lower ends of the guide rod are fixedly connected to the upper fixed plate and the lower fixed plate respectively.

[0011] Furthermore, the hot melt equipment also includes a base, which is used to place the product, and the base is fixed to the lower fixing plate.

[0012] Furthermore, the hot melt equipment also includes a main power box and a wire storage groove, and the power supply cables of each temperature control box are stored in the main power box through the wire storage groove.

[0013] Furthermore, the hot melt end of the hot melt head includes at least one step structure, the step structure includes a top step, a middle step and a bottom step, the top step is provided with a hot melt cavity, the heating unit is fixed in the hot melt cavity, the heating flange is arranged at the bottom of the bottom step, and the step structure is consistent with the height position and size of the corresponding screw column hole, so that the distance between each heating flange and the corresponding screw column hole is consistent.

[0014] Furthermore, the circuits of a plurality of the temperature control boxes are connected in series, and the temperature control box is provided with a temperature display screen for real-time temperature monitoring.

[0015] Compared with the prior art, the utility model has at least the following beneficial effects:

[0016] First, set up a temperature control device, and use a temperature control box, heating wire, temperature sensing wire and heating unit to jointly control the temperature of the hot melt head, so that the temperature of the heating flange of the hot melt head is constant at a preset value, and the heating flange directly acts on the screw column hole, thereby obtaining good and stable hot melt quality.

[0017] Second, a driving assembly and multiple hot melt heads are set. The hot melt equipment drives multiple hot melt heads to descend through a lifting driving member, and can simultaneously hot melt multiple locations to be hot melted. The work efficiency is high and compared with traditional manual operation, the operation is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of a hot melt device according to an embodiment of the utility model.

[0019] Figure 2 It is a schematic diagram of an exploded view of a hot melt device according to an embodiment of the utility model.

[0020] Figure 3 yes Figure 2 A partial enlarged schematic diagram of part A.

[0021] Figure 4 yes Figure 2 A partial enlarged schematic diagram of part B.

[0022] in,

[0023] 1. Screw column hole; 2. Hot melt head; 21. Heating flange; 22. Hot melt chamber; 3. Temperature control device; 31. Temperature control box; 32. Heating unit; 33. Temperature sensing wire; 34. Heating wire; 4. Lifting drive member; 5. Moving plate; 6. Upper fixed plate; 7. Lower fixed plate; 8. Guide rod; 9. Base. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0025] See also Figures 1 to 4 , showing a hot melt device provided by an embodiment of the utility model, which is used for hot melting a screw column hole 1 so that a nut can be hot melted and buried in the screw column hole 1 of the product, including a hot melt mechanism, a temperature control device 3 and a driving component, the hot melt mechanism includes a plurality of hot melt heads 2, each of the hot melt heads 2 has a heating flange 21 matching the screw column hole 1, the temperature control device 3 includes a plurality of temperature control boxes 31, the driving component includes a lifting driving member 4 and a movable plate 5, a hot melt head 2 is arranged at each hot melt position, each of the hot melt heads 2 is connected to a corresponding temperature control box 31, the hot melt head 2 is fixed to the movable plate 5, and the movable plate 5 is connected to the lifting driving member 4.

[0026] Specifically, the temperature control device 3 also includes a heating unit 32, a temperature sensing wire 33 and a heating wire 34, the temperature sensing wire 33 and the heating wire 34 are connected to the heating unit 32, the heating unit 32 is fixed inside the hot melt head 2, and the hot melt head 2 is connected to the temperature control box 31 through the heating unit 32, the temperature sensing wire 33 and the heating wire 34.

[0027] More specifically, the hot melt head 2 is fixed to the bottom of the movable plate 5 , the temperature control box 31 is arranged on the top of the movable plate 5 , and the movable plate 5 is provided with through holes to form cable channels for the temperature sensing wire 33 and the heating wire 34 .

[0028] Specifically, the heating flange 21 is located at the bottom of the hot melt head 2, and the heating flange 21 is in the shape of a hollow inverted truncated cone or an inverted cone. When the heating flange 21 is inserted into the screw column hole 1, it can perform hot melting on the hole wall of the screw column hole 1. More specifically, the hot melt head 2 is made of a metal with good thermal conductivity, preferably bronze.

[0029] In some specific embodiments, the temperature control box 31 first transfers heat to the heating unit 32 through the heating wire 34, and then transfers the heat to the heating flange 21 of the hot melt head 2. At the same time, the temperature data of the heating unit 32 is transmitted back to the temperature control box 31 through the temperature sensing wire 33. The controller in the temperature control box 31 compares the received temperature data with the set value, and adjusts the power of the heating element in the temperature control box 31 accordingly to increase or decrease the temperature of the temperature control box 31 to meet the set value. After adjustment, the temperature control box 31 transfers heat to the heating unit 32 through the heating wire 34, so that the temperature of the heating flange 21 is constant at the set value. The heating flange 21 directly acts on the screw column hole 1. Since the temperature of the heating flange 21 is constant, that is, the hot melt temperature used to hot melt the screw column hole 1 is constant, so the hot melt quality is good and stable.

[0030] Specifically, the driving assembly also includes an upper fixed plate 6 and a lower fixed plate 7, and the lifting driving component 4 is a cylinder, the cylinder seat of the cylinder is fixed to the upper fixed plate 6, and the piston rod of the cylinder is fixedly connected to the movable plate 5 to drive the movable plate 5 to move up and down. In this embodiment, the lifting driving component 4 is preferably a cylinder, and other lifting driving methods such as gear rack drive and screw drive can also be used.

[0031] More specifically, the driving assembly also includes a guide rod 8, and guide sleeves are provided on the four corners of the movable plate 5. The guide rod 8 is inserted into the guide sleeve and the upper and lower ends of the guide rod 8 are fixedly connected to the upper fixed plate 6 and the lower fixed plate 7 respectively.

[0032] More specifically, the hot melt device further includes a base 9 , which is used to place the product, and the base 9 is fixed to the lower fixing plate 7 .

[0033] In some specific embodiments, the piston rod of the cylinder extends out to drive the movable plate 5 downward along the guide rod 8. Since multiple hot melt heads 2 are fixed at the bottom of the movable plate 5, each hot melt position corresponds to a hot melt head 2. The movable plate 5 drives each hot melt head 2 downward to each heating flange 21 and inserts into the corresponding screw column hole 1 to cause hot melting. After the hot melting is completed, the piston rod of the cylinder retracts and drives the movable plate 5 upward along the guide rod 8. The movable plate 5 drives each hot melt head 2 to disengage from the screw column hole 1. At this time, the nut is hot-melted and buried in the screw column hole 1, so that hot melting of multiple positions to be hot-melted can be completed at the same time.

[0034] Specifically, the hot melt equipment further includes a main power box and a wire storage groove, and the power supply cables of each temperature control box 31 are stored in the main power box through the wire storage groove.

[0035] More specifically, the hot melt end of the hot melt head 2 includes at least one step structure, and the step structure includes a top step, a middle step and a bottom step. The top step is provided with a hot melt cavity 22, and the heating unit 32 is fixed in the hot melt cavity 22. The heating flange 21 is arranged at the bottom of the bottom step. The step structure is consistent with the height position and size of the corresponding screw column hole 1. In some embodiments, the various screw column holes 1 are not all at the same horizontal height. The step height of the middle step of the hot melt head 2 at different positions should be adapted to the height of the corresponding screw column hole 1, ultimately ensuring that each of the heating flanges 21 is at a consistent distance from the corresponding screw column hole 1. More specifically, the diameter of each heating flange 21 should be adapted to the aperture size of the corresponding screw column hole 1.

[0036] Specifically, the circuits of multiple temperature control boxes 31 are connected in series, and the temperature control box 31 has a temperature display screen for real-time temperature monitoring. More specifically, the temperature display screen can display the current temperature and the set temperature. The user can adjust the set temperature by operating the buttons or knobs on the screen and monitor the working status of the temperature control box.

[0037] To summarize, the above-mentioned hot melt equipment is provided with a temperature control device 3, and uses a temperature control box 31, a heating wire 34, a temperature sensing wire 33 and a heating unit 32 to jointly control the temperature of the hot melt head 2, so that the temperature of the heating flange 21 of the hot melt head 2 is constant at a preset value, and the heating flange 21 directly acts on the screw column hole 1, thereby obtaining good and stable hot melt quality; a driving component and multiple hot melt heads 2 are also provided, and the hot melt equipment drives multiple hot melt heads 2 to descend through a lifting driving component 4, so that multiple positions to be hot melted can be hot-melted at the same time, with high working efficiency and more convenient operation than traditional manual operation.

[0038] It should be noted that the present invention is not limited to the above-mentioned embodiments. According to the creative spirit of the present invention, those skilled in the art may also make other changes. These changes made according to the creative spirit of the present invention should be included in the scope of protection required by the present invention.

Claims

1. A hot melt device for hot melting a screw column hole so that a nut can be hot melted and embedded in the screw column hole of a product, characterized in that: It includes a hot melt mechanism, a temperature control device and a drive assembly. The hot melt mechanism includes a plurality of hot melt heads, each of which has a heating flange matching the screw column hole. The temperature control device includes a plurality of temperature control boxes. The drive assembly includes a lifting drive member and a movable plate. A hot melt head is arranged at each hot melt position, each hot melt head is connected to a corresponding temperature control box, the hot melt head is fixed to the movable plate, and the movable plate is connected to the lifting drive member.

2. A hot melt device as claimed in claim 1, characterized in that: The temperature control device also includes a heating unit, a temperature sensing line and a heating wire, the temperature sensing line and the heating wire are connected to the heating unit, the heating unit is fixed inside the hot melt head, and the hot melt head is connected to the temperature control box through the heating unit, the temperature sensing line and the heating wire.

3. A hot melt device as claimed in claim 2, characterized in that: The hot melt head is fixed to the bottom of the movable plate, the temperature control box is arranged on the top of the movable plate, and the movable plate is provided with through holes to form cable channels for the temperature sensing wire and the heating wire.

4. A hot melt device as claimed in claim 1, characterized in that: The heating flange is located at the bottom of the hot melt head and is in the shape of a hollow inverted truncated cone or an inverted cone. When the heating flange is inserted into the screw column hole, it can perform hot melting on the hole wall of the screw column hole.

5. A hot melt device as claimed in claim 1, characterized in that: The driving assembly also includes an upper fixed plate and a lower fixed plate. The lifting driving member is a cylinder. The cylinder seat of the cylinder is fixed to the upper fixed plate. The piston rod of the cylinder is fixedly connected to the movable plate to drive the movable plate to move up and down.

6. A hot melt device as claimed in claim 5, characterized in that: The driving assembly also includes a guide rod, and guide sleeves are arranged on the four corners of the movable plate. The guide rod is inserted into the guide sleeve and the upper and lower ends of the guide rod are fixedly connected to the upper fixed plate and the lower fixed plate respectively.

7. A hot melt device as claimed in claim 5, characterized in that: The hot melt device also includes a base, which is used to place the product and is fixed to the lower fixing plate.

8. A hot melt device as claimed in claim 1, characterized in that: The hot melt equipment also includes a main power box and a wire storage groove, and the power supply cables of each temperature control box are stored in the main power box through the wire storage groove.

9. A hot melt device as claimed in claim 2, characterized in that: The hot melt end of the hot melt head includes at least one step structure, the step structure includes a top step, a middle step and a bottom step, the top step is provided with a hot melt cavity, the heating unit is fixed in the hot melt cavity, the heating flange is arranged at the bottom of the bottom step, and the step structure is consistent with the height position and size of the corresponding screw column hole, so that the distance between each heating flange and the corresponding screw column hole is consistent.

10. A hot melt device as claimed in claim 1, characterized in that: The circuits of the multiple temperature control boxes are connected in series, and the temperature control boxes are provided with a temperature display screen for real-time temperature monitoring.

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