Equipment for hot press molding of plastic products

Abstract

The utility model relates to the field of plastic product processing, and discloses a plastic product hot press forming device which comprises a processing table, a forming mechanism is installed on one side of the upper surface of the processing table, and supporting foot columns are installed at the four corners of the lower surface of the processing table. A plurality of heating pipes are installed on the lower portion of the interior of the preheating box, two side plates are symmetrically arranged on the two sides of the inner wall of the preheating box, raw material pieces at the bottommost part are preheated through the heating pipes below the preheating box, a driving motor is matched to drive a lead screw to rotate, a moving push plate drives push rods on the two sides to move in the guiding direction of the top of a U-shaped frame, and therefore the raw material pieces are preheated; and the raw material sheet which is preheated at the bottommost part is automatically ejected out from the interior of the preheating box to the position above the supporting plate, finally, the preheated raw material sheet is transferred into the forming mechanism by processing personnel to be subjected to hot press forming, and the basic temperature of the raw material sheet is increased when the environment temperature is low.

Description

Technical Field

[0001] This application relates to the technical field of plastic product processing, and in particular to an apparatus for hot pressing of plastic products. Background Technology

[0002] Thermoforming of plastic products is a common plastic processing technology. It is mainly used to soften thermoplastic sheets by heating, apply pressure to make them conform to the shape of a mold, and then cool them to solidify them into the desired product. The specific steps are to heat the plastic sheet to a plastic state, and then use pressure (vacuum, air pressure, or mechanical pressure) to make it conform to the surface of the mold to form the product.

[0003] In existing equipment, raw material sheets are usually placed directly on a hot press mold during processing. When the ambient temperature is low, the time required for the raw material sheets to soften in the hot press mold is increased, which increases the hot pressing time and affects processing efficiency.

[0004] Therefore, those skilled in the art have provided an apparatus for hot pressing of plastic products to solve the problems mentioned in the background art. Utility Model Content

[0005] To address the problems mentioned in the background art, this application provides an apparatus for hot pressing of plastic products.

[0006] The equipment for hot pressing of plastic products provided in this application adopts the following technical solution:

[0007] A device for thermoforming plastic products includes a processing table. A molding mechanism is installed on one side of the upper surface of the processing table, and support columns are installed at the four corners of the lower surface of the processing table. The device is characterized by having a preheating box installed on the upper surface of the processing table, with multiple heating tubes installed inside the lower part of the preheating box. Two side plates are symmetrically arranged on both sides of the inner wall of the preheating box, and multiple raw material sheets are stacked sequentially above the two side plates. A pad is installed on one side of the preheating box on the upper surface of the processing table, and a fixing plate is installed on one side of the upper surface of the pad. A rectangular through-slot is opened below the preheating box, and a pad block is installed at the center of one side of the rectangular through-slot. A pushing mechanism for moving the raw material sheets is provided between the pad block and the fixing plate.

[0008] Preferably, the pushing mechanism includes a lead screw rotatably connected between the pad and the fixed plate, a push plate externally driven by a screw, push rods fixedly connected to both ends of the push plate, a U-shaped frame installed on the upper surface of the pad away from the fixed plate, and push rods passing through the corresponding sides at both ends of the upper part of the U-shaped frame, and a drive motor installed on one side of the fixed plate, with the output end of the drive motor fixed to the corresponding end of the lead screw.

[0009] Preferably, the rectangular through slot of the preheating box is at the same level as the push rods.

[0010] Preferably, the preheating box is provided with a box door above one side of the side plate.

[0011] Preferably, the preheating box is provided with a support plate horizontally arranged at one side of the rectangular through slot close to the forming mechanism.

[0012] In summary, the present application has the following beneficial technical effects:

[0013] The bottommost raw material sheet is preheated by the heating pipe below the preheating box, and the moving push plate drives the two push rods to move along the guide on the top of the U-shaped frame by driving the rotation of the lead screw, so that the preheated raw material sheet is automatically pushed out from the preheating box to above the support plate, and finally the preheated raw material sheet is transferred to the forming mechanism by the processing personnel for hot pressing forming, which improves the base temperature of the raw material sheet at low ambient temperature, reduces the time required for heating and softening of the raw material sheet in the forming mechanism, and improves the processing efficiency of the raw material sheet. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a structural schematic view of the device body of the present application;

[0015] Figure 2 is a structural schematic view of the connection between the preheating box and the driving motor of the present application;

[0016] Figure 3 is a structural schematic view of the Figure 2 the other side in a partially cutaway state;

[0017] Figure 4 is a structural schematic view of the Figure 3 the preheating box in a partially enlarged detail view.

[0018] Explanation of reference signs: 1, support column; 2, processing table; 3, forming mechanism; 4, support plate; 6, box door; 7, preheating box; 8, push rod; 9, lead screw; 10, push plate; 11, fixed plate; 12, driving motor; 13, pad; 14, raw material sheet; 15, side plate; 16, heating pipe; 17, U-shaped frame; 18, pad. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0020] Reference Figures 1-4 As shown in the figure, the present application discloses a device for hot press forming of plastic products, comprising a processing table 2, a forming mechanism 3 is installed on one side of the upper surface of the processing table 2, wherein the forming mechanism 3 mainly realizes hot press forming of the raw material by cooperating with the upper and lower hot press molds of the telescopic cylinder body;

[0021] Supporting foot columns 1 are installed at the four corners of the lower surface of the processing table 2, a preheating box 7 is installed on the upper surface of the processing table 2, a plurality of heating pipes 16 are installed inside the preheating box 7, two side plates 15 are symmetrically arranged on the inner wall of the preheating box 7, a plurality of raw material sheets 14 are stacked on the two side plates 15 in turn, a backing plate 13 is installed on one side of the preheating box 7 on the upper surface of the processing table 2, a fixed plate 11 is installed on one side of the upper surface of the backing plate 13, a rectangular through slot is formed below the preheating box 7, a cushion block 18 is installed at the center of one side of the rectangular through slot of the preheating box 7, and a pushing mechanism for moving the raw material sheet 14 is arranged between the cushion block 18 and the fixed plate 11;

[0022] The bottom raw material sheet 14 is preheated by the heating pipes 16 below the preheating box 7, and the bottom raw material sheet 14 after preheating is automatically ejected from the inside of the preheating box 7 by cooperating with the pushing mechanism, and then the preheated raw material sheet 14 is transferred to the inside of the forming mechanism 3 by the processing personnel for hot press forming, so as to improve the basic temperature of the raw material sheet 14 in low ambient temperature and reduce the time required for heating and softening of the raw material sheet 14 in the forming mechanism 3.

[0023] Reference Figures 1-4 As shown in the figure, the pushing mechanism comprises a lead screw 9 rotatably connected between the cushion block 18 and the fixed plate 11, a push plate 10 is spirally driven outside the lead screw 9, push rods 8 are fixedly connected to the two ends outside the push plate 10, a U-shaped frame 17 is installed on the side of the upper surface of the backing plate 13 away from the fixed plate 11, the two ends of the U-shaped frame 17 above are respectively penetrated through the corresponding side push rod 8, a drive motor 12 is installed on one side above the fixed plate 11, and the output end of the drive motor 12 is fixed with the corresponding end of the lead screw 9. The output end of the drive motor 12 drives the lead screw 9 to rotate, and then the rotating lead screw 9 drives the push plate 10 to move horizontally, and then the moving push plate 10 drives the two side push rods 8 to move along the guide on the top of the U-shaped frame 17, so that the two ends of the moving push rod 8 can automatically eject the bottom raw material sheet 14 after preheating from the inside of the preheating box 7.

[0024] Reference Figures 1-4 As shown in the figure, the rectangular through slot of the preheating box 7 and the push rod 8 are in the same horizontal plane, so that the push rod 8 can enter and exit the inside of the preheating box 7 through the rectangular through slot.

[0025] Reference Figure 1 And Figure 2 And Figure 3As shown in the preheating box 7 side in the side plate 15 above the box door 6, through the box door 6 is convenient to the preheating box 7 inside the raw material piece 14.

[0026] Reference Figure 1 , in the preheating box 7 rectangular slot near the forming mechanism 3 side horizontally provided with support plate 4, and the support plate 4 side edge and forming mechanism 3 base fixed, convenient to accept from the preheating box 7 inside the raw material piece 14 is pushed out.

[0027] The standard parts used in the utility model can be purchased from the market, and the special-shaped parts can be ordered according to the description and the drawings. The specific connection mode of each part adopts the conventional means such as bolt, rivet and welding in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here.

[0028] Meanwhile, the contents not described in detail in the specification belong to the prior art known to those skilled in the art.

[0029] The implementation principle of the device for hot press forming of plastic products according to the embodiment of the application is as follows:

[0030] In use, a plurality of raw material pieces 14 are stacked on the two side plates 15 in turn, then the heating pipe 16 below the preheating box 7 is started to preheat the bottom raw material piece 14, then the driving motor 12 is started to drive the screw rod 9 to rotate, then the rotating screw rod 9 drives the push plate 10 to move horizontally, then the moving push plate 10 drives the two side push rods 8 to move along the guide on the top of the U-shaped frame 17, so that the two end moving push rods 8 can automatically push the bottom preheated raw material piece 14 out of the preheating box 7 to the top of the support plate 4. Finally, the preheated raw material piece 14 is transferred to the forming mechanism 3 for hot press forming, which improves the base temperature of the raw material piece 14 at low ambient temperature, reduces the time required for heating and softening of the raw material piece 14 in the forming mechanism 3, and improves the processing efficiency of the raw material piece 14.

[0031] The basic principle, main features and advantages of the utility model have been shown and described. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred examples of the utility model and do not limit the utility model. Without departing from the spirit and scope of the utility model, the utility model can also have various changes and improvements, which fall within the scope of the claimed utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. An apparatus for hot pressing of plastic products, comprising a processing table (2), wherein a molding mechanism (3) is mounted on one side of the upper surface of the processing table (2), and support columns (1) are mounted at the four corners of the lower surface of the processing table (2), characterized in that, A preheating box (7) is installed on the upper surface of the processing table (2). Multiple heating tubes (16) are installed inside the lower part of the preheating box (7). Two side plates (15) are symmetrically arranged on both sides of the inner wall of the preheating box (7). Multiple raw material pieces (14) are stacked on top of the two side plates (15). A pad (13) is installed on one side of the preheating box (7) on the upper surface of the processing table (2). A fixing plate (11) is installed on one side of the upper surface of the pad (13). A rectangular through groove is opened below the preheating box (7). A pad block (18) is installed in the middle of one side of the rectangular through groove of the preheating box (7). A pushing mechanism for moving the raw material pieces (14) is provided between the pad block (18) and the fixing plate (11).

2. The equipment for hot pressing of plastic products according to claim 1, characterized in that: The pushing mechanism includes a lead screw (9) rotatably connected between the pad (18) and the fixed plate (11). The lead screw (9) is externally driven by a push plate (10). Both ends of the push plate (10) are fixedly connected to push rods (8). A U-shaped frame (17) is installed on the upper surface of the pad (13) away from the fixed plate (11), and push rods (8) on the corresponding sides pass through the upper ends of the U-shaped frame (17). A drive motor (12) is installed on the upper side of the fixed plate (11), and the output end of the drive motor (12) is fixed to the corresponding end of the lead screw (9).

3. The equipment for hot pressing of plastic products according to claim 1, characterized in that: The rectangular through slot in the preheating box (7) is on the same horizontal plane as the push rod (8).

4. The equipment for hot pressing of plastic products according to claim 1, characterized in that: The preheating box (7) has a door (6) located above the side plate (15) on one side.

5. The equipment for hot pressing of plastic products according to claim 1, characterized in that: The preheating box (7) has a rectangular through slot with a horizontal support plate (4) on the side near the forming mechanism (3).

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