CN113619003A

CN113619003A - Automatic feeding machine with preheating function for pre-compression molding process of SMC (sheet molding compound) material

Info

Publication number: CN113619003A
Application number: CN202110942490.7A
Authority: CN
Inventors: 曾欢; 曾治
Original assignee: Zhengxi Hydraulic Equipment Manufacturing Co ltd
Current assignee: Zhengxi Hydraulic Equipment Manufacturing Co ltd
Priority date: 2021-08-17
Filing date: 2021-08-17
Publication date: 2021-11-09

Abstract

The invention discloses an automatic feeding machine with preheating function for a pre-compression molding process of SMC (sheet molding compound) materials, which relates to the technical field of SMC material production, and comprises a material displacement conveying device and a preheating machine, wherein the preheating machine is of a microwave oven structure, the material displacement conveying device is of a conveying belt structure, the microwave oven structure comprises a microwave oven body and a rack arranged at the bottom, the bottom of the microwave oven body is of an opening structure, a channel is arranged in the middle of the bottom of the oven body, the conveying belt structure penetrates through the channel, the conveying belt structure comprises a conveying belt and a driving device, a film tearing and slicing machine is arranged at the front end of the conveying belt structure, and a hydraulic machine is arranged on the outer side of the other end of the conveying belt structure.

Description

Automatic feeding machine with preheating function for pre-compression molding process of SMC (sheet molding compound) material

Technical Field

The invention relates to the technical field of SMC material feeding, in particular to an automatic feeding machine with preheating for a pre-compression molding process of SMC materials.

Background

SMC composite material, one kind of glass fiber reinforced plastics. The main raw materials consist of GF (special yarn), MD (filling) and various auxiliary agents. It first appeared in europe in the early sixties of the twentieth century, and around 1965, the technology was developed successively in the united states and on a daily basis. At the end of the 80 s in China, a foreign advanced SMC production line and a production process are introduced, the SMC material is a thermosetting material, the SMC material is directly subjected to hydraulic forming in the currently adopted forming method, but the material has high hardness and poor over-hard flowability, and the processing period needs 3min, so that the efficiency is low in batch production, and meanwhile, the material is placed in a hydraulic machine through a mechanical claw in the currently adopted forming process of the SMC material, but the precision of the mechanical claw is required in the method, and the process cost is increased.

Therefore, the automatic feeding machine with preheating for the procedure before compression molding of SMC materials is designed according to the technical problems.

Disclosure of Invention

The invention aims to: in order to solve the problems of long compression molding time and inconvenient feeding of SMC materials in the prior art, the invention designs an automatic feeding machine with preheating for a pre-compression molding process of SMC materials.

The invention specifically adopts the following technical scheme for realizing the purpose: the utility model provides a take and preheat automatic feeding machine for SMC material compression molding preceding process, includes that the material shifts conveyor and preheater, the preheater is the microwave oven structure, the material shifts conveyor and is the conveyer belt structure, the microwave oven structure includes the microwave oven body and locates the frame of bottom, microwave oven body bottom is open structure, furnace body bottom intermediate position is equipped with the passageway, the conveyer belt structure passes the passageway, the conveyer belt structure includes conveyer belt and drive arrangement, conveyer belt structure front end is equipped with the dyestripping slicer, the other end outside of conveyer belt structure is equipped with the hydraulic press.

Further, the rack length is longer than the microwave oven structure, the bottom of the conveyor belt structure is provided with a moving frame, the rack is provided with a sliding groove, the moving frame is provided with a sliding block matched with the sliding groove in a sliding mode, the conveyor belt structure is arranged on the moving frame, the moving frame can slide in the rack, the moving frame is provided with a second driving device in a moving mode, the second driving device comprises a motor and a conveyor belt track connected with the motor, and the conveyor belt track is connected with the moving frame so that the conveyor belt can be directly deep into the next step or the previous step.

Further, the protective cover is arranged on the outer side of the microwave oven structure, the protective cover is made of heat insulation materials, and the heat insulation materials can effectively insulate heat and protect workers from being scalded.

Furthermore, the bottom of the rack is provided with a lifting mechanism which is a turbine right-angle screw rod, and the turbine right-angle screw rod is provided with a locking device, so that the height of equipment such as a hydraulic machine can be adjusted.

Furthermore, the protective cover is provided with a heat dissipation device, so that the heat of elements can be reduced, and the equipment is safe and stable.

Furthermore, safety doors are arranged on the outer sides of two ends of the channel and comprise a door body and an air cylinder, the door body and the air cylinder are matched with the channel opening in size, the air cylinder is electrically connected with the furnace body, when the safety doors are put down, the microwave oven can start heating, and dangerousness of production personnel is effectively reduced.

Furthermore, a temperature control system is arranged on the furnace body, a PLC is arranged on the rack, and the PLC is electrically connected with the temperature control system, the driving device and the air cylinder.

Further, the conveyer belt is the teflon material, drive arrangement is servo motor, servo motor's walking speed is in 500mm/s within range.

The working principle is as follows: the microwave oven heating device is added in front of the traditional hydraulic equipment, so that the molding time can be effectively reduced by preheating the SMC material and then molding the SMC material, namely, the bottom of the preheating device is provided with a frame, the frame is provided with a conveying device, then the conveying device penetrates through the bottom of the preheating device, when the materials need to be preheated, the film tearing and slicing machine directly places the materials on the conveying track to open the driving device, the driving device drives the conveying track to convey the materials into the preheating device, the preheating temperature is 80-100 ℃, then when hydraulic operation is needed after the preheating is finished, the second driving device drives the conveyor belt device to move, the driving device moves to the feed inlet of the hydraulic press to convey the preheated materials into the hydraulic press, this application is stable through the temperature of PLC controller regulation furnace body for preheating temperature makes the inside temperature of furnace body stable.

The invention has the following beneficial effects:

1. according to the invention, the microwave oven heating device is added in front of the traditional hydraulic equipment, so that the molding time can be effectively reduced by preheating the SMC material and then molding, the original basic processing time is changed from 3min to 2min, the time of 1min is increased, and the working efficiency can be greatly improved in the process of batch production.

2. According to the invention, the conveying belt is directly pushed into the hydraulic press through the conveying moving frame, so that the SMC material can be quickly put into the hydraulic press, the temperature reduction caused by taking out the SMC material can be reduced, and meanwhile, the production timeliness can be increased.

3. The frame is provided with the control panel, the temperature control system and the like are additionally arranged, the control panel is electrically connected with the PLC, so that the automatic operation can be realized conveniently, the safety doors are arranged on the outer sides of the two ends of the channel and comprise the door body and the air cylinder which are matched with the size of the channel opening, and the effects of safety and heat loss prevention can be realized in the preheating process.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the material indexing conveyor of the present invention;

FIG. 3 is a schematic view of the construction of the preheater of the present invention;

reference numerals: 1-SMC material, 2-film tearing and slicing machine, 3-material displacement conveying device, 4-preheating machine, 5-moving rack,

6-chute, 7-driving device II, 8-lifting mechanism, 9-hydraulic machine, 10-safety door, 101-door body, 102-cylinder, 301-

Conveyor belt, 401-frame, 402-shield, 701-motor, 702-conveyor track.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally arranged when products of the present invention are used, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements indicated must have specific orientations, be constructed in specific orientations, and operated, and thus, cannot be construed as limiting the present invention.

Example 1

As shown in fig. 1 to 3, an automatic feeding machine with preheating function for a pre-molding process of SMC material 1 comprises a material shifting conveying device 3 and a preheating machine 4, wherein the preheating machine 4 is of a microwave oven structure, the material shifting conveying device 3 is of a conveyor belt 301 structure, the microwave oven structure comprises a microwave oven body and a frame 401 arranged at the bottom, the bottom of the microwave oven body is of an open structure, a channel is arranged at the middle position of the bottom of the oven body, the conveyor belt 301 structure passes through the channel, the conveyor belt 301 structure comprises a conveyor belt 301 and a driving device, the front end of the conveyor belt 301 structure is provided with a film tearing and slicing machine 2, the outer side of the other end of the conveyor belt 301 structure is provided with a hydraulic machine 9, the frame 401 is longer than the microwave oven structure, the bottom of the conveyor belt 301 structure is provided with a moving frame 5, the frame 401 is provided with a chute 6, the moving frame 5 is provided with a sliding block matched with the chute 6 for sliding, conveyer belt 301 structure sets up on removing frame 5, remove frame 5 and can slide in frame 401 inside, it is equipped with drive arrangement two 7 to remove 5 removal, drive arrangement two 7 include motor 701 and the conveying track 702 of being connected with motor 701, conveying track 702 is connected with removing frame 5, conveyer belt 301 is the teflon material, drive arrangement and drive arrangement two 7 are servo motor 701, servo motor 701's walking speed is at the 500mm/s within range.

When the invention is used, a microwave oven heating device is added in front of the traditional hydraulic equipment, so that the molding time can be effectively reduced by preheating the SMC material 1 and then molding, namely a rack 401 is arranged at the bottom of the preheating device, a conveying device is arranged on the rack 401 and penetrates through the bottom of the preheating device, when the material needs to be preheated, the material is directly placed on a conveying crawler 702 by a film tearing and slicing machine 2, a driving device is opened, the driving device drives the conveying crawler 702 to convey the material into the preheating device, the preheating temperature is 80-100 ℃, and then when hydraulic operation needs to be carried out after preheating is finished, a second driving device 7 drives the conveying belt 301 device to move, and the driving device moves to the feed inlet of a hydraulic machine 9 to convey the preheated material into the hydraulic machine 9.

Example 2

As shown in fig. 1 to fig. 3, in order to make the use process of the present invention safer and more stable, this embodiment is further improved on the basis of embodiment 1, specifically, a protective cover 402 is disposed on the outer side of the microwave oven structure, the protective cover 402 is made of a heat insulating material, safety doors 10 are disposed on the outer sides of two ends of the passage, the safety doors 10 include a door body 101 and a cylinder 102 matching the size of the opening of the passage, the cylinder 102 is electrically connected to the oven body, and when the safety doors 10 are released, the microwave oven can start heating.

Example 3

As shown in fig. 1 to 3, in order to make the present invention more intelligent and to be able to match with hydraulic machines 9 of various heights, the present embodiment is further improved on the basis of embodiment 1: the furnace body is characterized in that a lifting mechanism 8 is arranged at the bottom of the frame 401, the lifting mechanism 8 is a turbine right-angle lead screw, a locking device is arranged on the turbine right-angle lead screw, a temperature control system is arranged on the furnace body, a PLC is arranged on the frame 401, and the PLC is electrically connected with the temperature control system, the driving device and the cylinder 102.

The protection scope of the present invention is not limited to the above examples, and variations of the screw rod, the cylinder, etc. made by those skilled in the art on the basis of the present invention are within the protection scope.

Claims

1. The utility model provides a take and preheat automatic feeding machine for SMC material compression molding preceding process, its characterized in that shifts conveyor (3) and preheater (4) including the material, preheater (4) are the microwave oven structure, material shifts conveyor (3) and is the conveyer belt structure, the microwave oven structure includes the microwave oven body and locates frame (401) of bottom, microwave oven body bottom is open structure, microwave oven body bottom intermediate position is equipped with the passageway, the conveyer belt structure passes the passageway, the conveyer belt structure includes conveyer belt (301) and drive arrangement.

2. The automatic pre-heating feeder for the pre-molding process of the SMC material according to claim 1, wherein the rack (401) is longer than the microwave oven structure and the microwave oven structure is arranged in the middle of the rack (401), the bottom of the conveyor belt structure is provided with a moving frame (5), the rack (401) is provided with a sliding chute (6), the moving frame (5) is provided with a sliding block (501) which is matched with the sliding chute (6) to slide, the conveyor belt structure is arranged on the moving frame (5), and the moving frame (5) can slide in the rack (401).

3. The automatic pre-heating feeder for the pre-molding process of the SMC material as recited in claim 2, characterized in that the second driving device (7) is arranged at the bottom of the moving frame (5), the second driving device (7) comprises a motor (701) and a conveying crawler (702) connected with the motor, and the conveying crawler (702) is connected with the moving frame (5).

4. An automatic pre-heating feeder for pre-molding procedures of SMC materials as claimed in claim 1, wherein the microwave oven is provided with a protective cover (402) on the outside, and the protective cover (402) is made of heat insulating material.

5. An automatic pre-heating feeder for pre-molding of SMC materials according to claim 1, characterized in that the bottom of the frame (401) is provided with a lifting mechanism (8), the lifting mechanism (8) is a turbine right-angle screw, and the turbine right-angle screw is provided with a locking device.

6. A belt preheating automatic feeder for a pre-molding process of SMC material as in claim 1, characterized in that the front end of the conveyor belt structure is provided with a tear-off film slicer (2) and the outside of the other end of the conveyor belt structure is provided with a hydraulic press (9).

7. An automatic pre-heating feeder for pre-molding of SMC materials as claimed in claim 4, wherein the protective hood (402) is provided with heat dissipation means.

8. A pre-heating automatic feeder for pre-molding of SMC material as in claim 3, wherein: the outer sides of two ends of the channel are provided with safety doors (10), and each safety door (10) comprises a door body (101) and an air cylinder (102) matched with the size of the channel opening.

9. An automatic pre-heating feeder for pre-molding of SMC material as in claim 8, wherein: the microwave oven is characterized in that a temperature control system is arranged on the microwave oven body, a PLC is arranged on the rack (401), and the PLC is electrically connected with the temperature control system, the driving device, the second driving device (7) and the air cylinder (102).

10. An automatic pre-heating feeder for pre-molding of SMC material as recited in claim 1, wherein: the conveyer belt is the special fluorine dragon material, drive arrangement is servo motor, servo motor's walking speed is in 500mm/s within range.