CN202388802U - Hot melt device with pressing mechanism - Google Patents

Abstract

The utility model relates to the technical field of automobile parts assembly equipment, and in particular to a hot-melt device with a pressing mechanism, comprising a frame, a working table of the frame is provided with a lower positioning die, the lower positioning die is provided with a workpiece positioning platform used in conjunction with a workpiece, a lifting drive mechanism is provided above the workpiece positioning platform, the lifting drive mechanism is connected to an upper positioning die, a hot-melt device is provided at the lower part of the upper positioning die, the hot-melt device is provided with a welding head corresponding to a position to be welded of the workpiece, the lower positioning die is provided with a pressing mechanism for clamping the workpiece, the pressing mechanism and the lifting drive mechanism are electrically connected to a control device respectively; during processing, the workpiece is first placed on the workpiece positioning platform, and the pressing mechanism can be used to stably fix the workpiece on the lower positioning die, thereby realizing semi-automatic fusion positioning, and having the advantages of simple operation, high operational safety performance, small operational errors, and high processing efficiency.

Description

Hot melt device with pressing mechanism

technical field

The utility model relates to the technical field of auto parts assembly equipment, in particular to a hot-melt device with a pressing mechanism.

Background technique

Some plastic product parts on the car, such as the gear box, include an outer frame and an inner frame used in conjunction with the outer frame. Before being installed on the car, the outer frame and the inner frame need to be relatively fixedly connected. At present, the connection methods between two plastic products mainly include screw connection, clamp connection, glue-coated connection, double-sided tape connection, welding connection and so on. Among them, some plastic products, such as automobile gear frame, must use melt glue to connect and fix the inner frame and outer frame due to their own reasons or other process requirements.

At present, for the melt connection of plastic parts, a plastic part hot-melt device has appeared in the prior art, which fixes the plastic parts on the top of the lower positioning mold, and the upper positioning mold moves downward under the action of the cylinder, and drives it to be fixed on the top of the positioning mold. The hot-melt device at the bottom moves in the direction of positioning the mold downward, so that the welding joint of the hot-melt device is covered on the hot-melt column of the plastic part, and the hot-melt column can be melted by heating the welding joint with electricity, so that the two plastic parts are welded forming. However, when the hot-melt device for plastic parts in the prior art replaces a new workpiece to be processed, the workpiece must be placed on the workpiece positioning platform of the lower positioning mold by hand, and then the workpiece is pressed manually to make the workpiece be placed smoothly. Placed on the workpiece positioning table, and the hot-melt device is a high-temperature device, manual pressing is dangerous, the positioning operation of the workpiece is troublesome, the operation error is large, the operation safety performance is low, and the processing efficiency is low.

Contents of the invention

The purpose of the utility model is to provide a hot-melt device with a pressing mechanism which is easy to operate, safe to use and high in processing efficiency in view of the deficiencies in the prior art.

In order to achieve the above object, the utility model adopts the following technical solutions:

A hot-melt device with a pressing mechanism is provided, including a frame, the workbench of the frame is provided with a lower positioning mold, and the lower positioning mold is provided with a workpiece positioning table used in conjunction with the workpiece, and the workpiece positioning table above A lifting drive mechanism is provided, and the lifting drive mechanism is connected with an upper positioning mold, and the lower part of the upper positioning mold is provided with a hot-melt device, and the hot-melt device is provided with a welding joint corresponding to the position to be welded of the workpiece. The positioning die is provided with a pressing mechanism for pressing the workpiece, and the pressing mechanism and the lifting drive mechanism are respectively electrically connected to a control device.

Wherein, the pressing mechanism includes a cylinder, a connecting rod and a pressing column, one end of the connecting rod is connected with the top of the piston rod of the cylinder, the other end of the connecting rod is connected with the pressing column, and the pressing column Located above the workpiece positioning table.

Wherein, a spherical pressure head is provided at one end of the pressure column adjacent to the workpiece positioning platform.

Wherein, the pressing mechanism further includes a limiting block used in cooperation with the connecting rod, and the limiting block is arranged below the connecting rod.

As mentioned above, the lower positioning mold is provided with at least two pressing mechanisms.

Wherein, the hot-melt device includes a heating device used in conjunction with the welding head, the heating device is detachably fixed on the lower part of the upper positioning mold, and the welding head is detachably fixed on the lower part of the heating device.

Wherein, a temperature sensor is arranged in the hot melting device, and the temperature sensor is electrically connected to a temperature control device, and the temperature control device is electrically connected to a heating device.

Wherein, the lower end of the upper positioning die is provided with a positioning guide post and a limit guide post, and the bottom of the positioning guide post can movably penetrate into the lower positioning die.

Wherein, the lower end of the lifting drive mechanism is connected with a pressing plate, and a heat insulating plate is arranged between the pressing plate and the upper positioning mold.

Wherein, a detachable dust cover is provided around the workbench of the frame, and a safety protection alarm is provided on the workbench in the workpiece entry and exit area.

The beneficial effects of the utility model are as follows: the hot-melt device with a pressing mechanism of the utility model includes a frame, the workbench of the frame is provided with a lower positioning mold, and the lower positioning mold is provided with a workpiece positioning tool used in conjunction with the workpiece. A lifting drive mechanism is arranged above the workpiece positioning platform, and the lifting drive mechanism is connected with an upper positioning mold. The lower positioning die is provided with a pressing mechanism for pressing the workpiece, and the pressing mechanism and the lifting drive mechanism are respectively electrically connected to a control device. During processing, the workpiece is placed on the workpiece positioning table first, and the workpiece can be stably fixed on the lower positioning mold by using the pressing mechanism, so as to realize the semi-automatic fusion positioning, which has the advantages of simple operation, high operation safety performance, small operation error, and easy processing. The advantage of high efficiency.

Description of drawings

Utilize accompanying drawing to further illustrate the utility model, but the embodiment in the accompanying drawing does not constitute any restriction to the present utility model, for those of ordinary skill in the art, under the premise of not paying creative work, also can obtain according to following accompanying drawing Additional drawings.

Fig. 1 is the structural representation of the utility model.

Fig. 2 is another structural schematic diagram of the utility model.

Fig. 3 is a structural schematic diagram of the pressing mechanism of the present invention.

Fig. 4 is a schematic structural view of the workpiece of the present invention.

In Figure 1, Figure 2, Figure 3 and Figure 4 include:

1——Rack 11——Workbench 2——Lower positioning mold

21——workpiece positioning table 3——lifting drive mechanism 4——upper positioning die

41——Positioning guide post 42——Limiting guide post 5——Hot melting device

51——welding joint 52——heating device 6——workpiece

61——Position to be welded 7——Press plate 8——Insulation board

9——press mechanism 91——cylinder 92——connecting rod

93——pressure column 931——pressure head 94——limiting block.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings.

As shown in Figures 1 to 4, the hot-melt device with a pressing mechanism of the present invention includes a frame 1, the workbench 11 of the frame 1 is provided with a lower positioning mold 2, and the lower positioning mold 2 is provided with a The workpiece positioning table 21 used in conjunction with the workpiece 6 is provided with a lifting drive mechanism 3 above the workpiece positioning table 21, and the lifting drive mechanism 3 is connected with an upper positioning mold 4, and a hot-melt device is provided at the bottom of the upper positioning mold 4 5. The hot-melt device 5 is provided with a welding head 51 corresponding to the position 61 to be welded of the workpiece 6, and the lower positioning mold 2 is provided with a pressing mechanism 9 for pressing the workpiece 6, and the pressing mechanism 9 and the lift The drive mechanisms 3 are respectively electrically connected to a control device.

During hot-melt processing, the temperature of the hot-melt device 5 is relatively high. When replacing a new workpiece 6 to be processed, first manually place the workpiece 6 on the workpiece positioning table 21, and use the pressing mechanism 9 to stably fix the workpiece 6 in the lower position. On the mold 2, so as to realize the semi-automatic welding and positioning, the operation is simple, and the hand is prevented from touching the high-temperature hot-melt device 5 during manual operation. The operation safety performance is high, the operation error is small, the operation time is short, and the processing efficiency is high.

The workpiece 6 in this embodiment is a car gear frame or plastic parts such as car interior panels, car exterior panels, and of course other plastic parts.

As shown in Figure 3, the pressing mechanism 9 of the present embodiment comprises a cylinder 91, a connecting rod 92 and a pressing post 93, one end of the connecting rod 92 is connected with the top of the piston rod of the cylinder 91, and the connecting rod 92 The other end is connected with the pressure column 93 , and the pressure column 93 is located above the workpiece positioning table 21 . The structure of the pressing mechanism 9 is simple, and the cylinder 91 drives the lifting of the connecting rod 92, thereby stably fixing the workpiece 6 on the workpiece positioning table 21, avoiding the hand touching the high-temperature fusion joint during operation, and the operation is simple. In addition, the positioning of the workpiece 6 The degree of tightness can be adjusted through the height of the pressure column 93, which is highly practical.

As shown in Figure 3, a spherical indenter 931 is provided at one end of the pressure column 93 adjacent to the workpiece positioning table 21 in this embodiment, so as to prevent the pressing mechanism 9 from scratching or abrading the surface of the workpiece 6 during the pressing operation, and improve the workpiece 6. product pass rate.

As shown in Figure 3, the pressing mechanism 9 of this embodiment also includes a limit block 94 used in conjunction with the connecting rod 92, the limit block 94 is arranged below the connecting rod 92, when the cylinder 91 drives When the connecting rod 92 moves downward, the pressure column 93 also moves downward under the drive of the connecting rod 92. The setting of the limit block 94 prevents the pressure column 93 from falling too low and crushing the workpiece 6, thereby improving the reliability of the utility model. sex.

The lower positioning mold 2 of this embodiment is provided with at least two pressing mechanisms 9 . As shown in Fig. 1 and Fig. 2, as a preferred embodiment, the lower positioning die 2 is provided with two said pressing mechanisms 9, and the two positions of the workpiece 6 are simultaneously pressed and positioned during use, and the positioning effect is good, ensuring that the workpiece 6 The whole is stably placed on the workpiece positioning table 21, and the processing efficiency is high.

As shown in Figure 1, the hot-melt device 5 of this embodiment includes a heating device 52 used in conjunction with the welding head 51, the heating device 52 is detachably fixed on the lower part of the upper positioning mold 4, and the welding head 51 can be It is detachably fixed on the lower part of the heating device 52 .

During use, the workpiece 6 to be processed is placed on the workpiece positioning table 21, and the heating device 52 heats the fusion joint 51, so that the temperature of the fusion joint 51 rises to an appropriate temperature; during thermal welding processing, the heated fusion joint 51 contacts the workpiece 6 The position 61 to be welded is heated and melted to ensure that the welding depth of the workpiece 6 is consistent, the quality of the heat welding process is high, and multiple positions 61 to be welded of the workpiece 6 are heated and melted to form at one time, and the production efficiency is high.

As shown in Figure 1, as a preferred embodiment, the lower end of the upper positioning mold 4 is provided with three thermal fusion devices 5, and the lower end of each thermal fusion device 5 is provided with a fusion joint 51, and the fusion joint 51 faces the workpiece 6's to-be-welded positions 61, the utility model can process and shape three to-be-welded positions 61 on the workpiece 6 at one time, so as to ensure that the welding depth of the welded and formed workpieces 6 is consistent, the processing efficiency is high, and the product qualification rate is high. Of course, according to the needs of production and processing, two or more hot-melt devices 5 can be set at the lower end of the upper positioning mold 4, so that the utility model can be applied to hot-melt molding of workpieces 6 with different numbers of positions 61 to be welded. , improve production and processing efficiency, and have a wide range of applications.

The thermal melting device 5 of this embodiment is provided with a temperature sensor, the temperature sensor is electrically connected to the temperature control device, and the temperature control device is electrically connected to the heating device 52 . The temperature sensor collects the temperature information of the hot melting device 5, and transmits it to the temperature control device, and the temperature control device controls the opening and closing of the heating device 52; when the temperature reaches or exceeds the set temperature, the heating device 52 is cut off by the temperature control device power supply and no longer generate heat; when the temperature is lower than the set temperature, the heating device 52 is automatically powered on by the temperature control device to generate heat; The purpose of thermal welding is not to damage the material of the workpiece 6 due to the high temperature, and it is also conducive to saving energy.

The lower end of the upper positioning die 4 in this embodiment is provided with a positioning guide post 41 and a limit guide post 42 , and the bottom of the positioning guide post 41 can movably penetrate into the lower positioning die 2 . When the upper positioning die 4 moves downward, the positioning guide post 41 moves downward under the drive of the lifting drive mechanism 3 and is inserted into the lower positioning die 2, and the upper positioning die 4 slides downward along the positioning guide post 41, effectively preventing the upper positioning die 4 from Deviation occurs when the lower positioning die 2 is closed. After the upper positioning die 4 and the lower positioning die 2 are relatively fixed, the limit guide post 42 continues to move downward and touches against the upper end surface of the lower positioning die 2, so as to prevent the workpiece 6 from being heated during the thermal welding process. If the middle welding is too deep, the product qualification rate of the workpiece 6 can be improved.

The lower end of the lifting drive mechanism 3 in this embodiment is connected with a pressing plate 7 , and a heat insulating plate 8 is arranged between the pressing plate 7 and the upper positioning mold 4 . The setting of the heat shield 8 is beneficial to the heat dissipation of the upper positioning mold 4 and improves the reliability of the utility model. As a preferred embodiment, in this embodiment, three heat insulating plates 8 are arranged between the pressing plate 7 and the upper positioning mold 4, and the heat insulating plates 8 are beneficial to reduce the heat transfer between the pressing plate 7 and the hot-melt device 5, The heat of the heating device 52 is prevented from being transferred to the lifting drive mechanism 3, which improves the reliability of the utility model.

A detachable dust cover is provided around the workbench 11 of the frame 1 in this embodiment, and the workbench 11 is provided with a safety protection alarm in the area where the workpiece 6 enters and exits. The setting of the dust cover can effectively avoid interference factors of the external environment, such as dust, from interfering with the thermal welding of the workpiece 6, prolonging the service life of the utility model, and the setting of the safety protection alarm ensures the operational safety of the operator replacing the new workpiece 6 , improve the operational safety performance of the utility model. As a preferred implementation, the safety protection alarm in this embodiment is a safety light barrier device, which is easy to use and safe to operate.

The above is only a preferred embodiment of the utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the utility model patent application scope are all included in the utility model patent application scope .

Claims (10)

1. A hot-melt device with a pressing mechanism, comprising a frame, the workbench of the frame is provided with a lower positioning mold, and the lower positioning mold is provided with a workpiece positioning platform used in conjunction with the workpiece, and the workpiece positioning platform is provided above There is a lifting drive mechanism, the lifting drive mechanism is connected with an upper positioning mold, the lower part of the upper positioning mold is provided with a hot-melt device, and the hot-melt device is provided with a welding joint corresponding to the position to be welded of the workpiece, and it is characterized in that: The lower positioning die is provided with a pressing mechanism for pressing the workpiece, and the pressing mechanism and the lifting drive mechanism are respectively electrically connected to a control device. 2. The hot-melt device with a pressing mechanism according to claim 1, characterized in that: the pressing mechanism includes a cylinder, a connecting rod and a pressure column, and one end of the connecting rod is connected to the top of the piston rod of the cylinder , the other end of the connecting rod is connected with the pressure column, and the pressure column is located above the workpiece positioning table. 3 . The hot-melt device with a pressing mechanism according to claim 2 , wherein a spherical pressing head is provided at one end of the pressing column adjacent to the workpiece positioning platform. 4 . 4. The hot-melt device with a pressing mechanism according to claim 2, characterized in that: the pressing mechanism further includes a limit block used in conjunction with the connecting rod, and the limit block is arranged on the connecting rod below the rod. 5. The hot-melt device with a pressing mechanism according to any one of claims 1-4, characterized in that: the lower positioning mold is provided with at least two pressing mechanisms. 6. The hot-melt device with a pressing mechanism according to claim 5, characterized in that: the hot-melt device includes a heating device used in conjunction with the welding head, and the heating device is detachably fixed on the upper positioning mold The lower part, the welding head is detachably fixed on the lower part of the heating device. 7. The hot-melt device with a pressing mechanism according to claim 6, wherein a temperature sensor is arranged inside the hot-melt device, and the temperature sensor is electrically connected to a temperature control device, and the temperature control device Electrically connected to the heating device. 8. The hot-melt device with a pressing mechanism according to claim 1, characterized in that: the lower end of the upper positioning mold is provided with a positioning guide post and a limit guide post, and the bottom of the positioning guide post can be movably inserted into the The lower positioning mold. 9 . The hot-melt device with a pressing mechanism according to claim 1 , wherein a pressing plate is connected to the lower end of the lifting drive mechanism, and a heat insulating board is arranged between the pressing plate and the upper positioning mold. 10. The hot-melt device with a pressing mechanism according to claim 1, characterized in that: a detachable dust cover is provided around the workbench of the frame, and a safety cover is provided on the workbench in the workpiece access area. Protection siren.

Images