CN218748946U

CN218748946U - PVC modified foaming material mould pressing structure

Info

Publication number: CN218748946U
Application number: CN202221918994.1U
Authority: CN
Inventors: 高志兵; 马建新
Original assignee: Nantong Huiyuan Plastic Co ltd
Current assignee: Nantong Huiyuan Plastic Co ltd
Priority date: 2022-07-21
Filing date: 2022-07-21
Publication date: 2023-03-28
Anticipated expiration: 2032-07-21

Abstract

The utility model provides a modified expanded material mould pressing structure of PVC, relate to PVC mould pressing field, including the shaping frame, the lower mould, go up mould and bracing piece, shaping frame side-mounting has control panel, the lower mould is installed at shaping frame top center, the bracing piece is fixed in shaping frame top four corners, quick lifting unit is installed on the bracing piece top, quick lifting unit installs slow lifting unit in the below, it installs in slow lifting unit below to go up the mould, it installs the matched molds board to go up mould bottom center, the gas vent has been seted up to matched molds board top, install solenoid electric valve in the gas vent, in this way, shorten non-production time through quick lifting unit, closure speed when mould lower mould contact is gone up in the control of slow lifting unit, can avoid the raw materials to spill over rapidly because of the too fast air of the matched molds and lead to the raw materials to follow the problem that spills over.

Description

PVC modified foaming material mould pressing structure

Technical Field

The utility model relates to a PVC mould pressing field, more specifically say, relate to modified expanded material mould pressing structure of PVC.

Background

Polyvinyl chloride (PVC), which is a polymer obtained by polymerizing vinyl chloride monomers under the action of initiators such as peroxides and azo compounds or under the action of light and heat according to a free radical polymerization reaction mechanism, is commonly used for manufacturing plastics, and PVC can be used only by modification.

At present, when producing a PVC modified foamed sheet, a method generally used is a press molding method, which is an operation method of placing a plastic in a powder, granule or fiber shape into a mold cavity at a molding temperature, and then closing the mold and pressing to mold and solidify the plastic. The mould is close to the lower mould through hydro-cylinder control in the prior art, and hydro-cylinder control speed is invariable, is not convenient for shorten non-production time and the closing speed when the uncontrollable mould lower mould contacts, has the raw materials to spill over rapidly because of the too fast air of compound die in the die cavity and leads to the raw materials to follow the problem of spilling over.

Therefore, the PVC modified foaming material mould pressing structure is provided.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

To the problem that exists among the prior art, the utility model aims to provide a modified expanded material mould pressing structure of PVC solves the problem of proposing in the background.

2. Technical scheme

In order to solve the above problems, the utility model adopts the following technical proposal.

Modified expanded material mould pressing structure of PVC, including shaping frame, lower mould, last mould and bracing piece, shaping frame side-mounting has control panel, the lower mould is installed at shaping frame top center, the bracing piece is fixed in shaping frame top four corners, quick lifting unit is installed on the bracing piece top, quick lifting unit installs slow lifting unit in the below, go up the mould and install in slow lifting unit below, go up mould bottom center and install the compound die board, the gas vent has been seted up to compound die board top, install solenoid electric valve in the gas vent.

Furthermore, the quick lifting assembly comprises a top plate, a cylinder, a piston rod and a connecting frame, the top plate is fixed to the top end of the supporting rod in a threaded mode, the cylinder is installed in the center of the top end of the top plate, the piston rod is movable in the cylinder, and the connecting frame is fixed to the bottom end of the cylinder.

Furthermore, the connection frame is an inverted concave frame, the upper die is a square frame and is fixed at the bottom end of the connection frame through threads, and the width of the upper die is larger than that of the connection frame.

Further, the low-speed lifting component comprises a second cylinder, a second piston rod, a sliding rail plate, a sliding block and a concave plate, the second cylinder is installed at the center of the bottom end of the inner cavity of the connecting frame, the second piston rod moves in the second cylinder, the telescopic speed of the second piston rod is slower than that of the first piston rod, the sliding rail plate is symmetrically fixed on two sides of the center of the connecting frame, the sliding block slides on the sliding rail plate, the concave plate is installed between the sliding blocks and is connected with the second piston rod, and the closing plate is fixed at the center of the bottom end of the concave plate.

Further, the sum of the heights of the concave plate and the sliding block is equal to the height of the sliding rail plate.

Furthermore, the lower die is internally provided with an ejection assembly, the ejection assembly comprises ejection grooves, ejection blocks, a supporting plate and ejection bolts, the ejection grooves are symmetrically formed in the inner wall of the lower die, the ejection blocks slide in the ejection grooves, the supporting plate is fixed between the ejection blocks, and the ejection bolts are in threaded connection with the upper die and the ejection blocks.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages of:

the utility model discloses a when the device that technical scheme provided uses, when carrying out PVC modified foaming material compression molding, pour the raw materials into the bed die, utilize control panel at first to control a cylinder work, promote a piston rod and move down fast, the drive connection frame moves down fast, when last mould and the contact of shaping frame top below the connection frame, a cylinder stop work this moment, no. two cylinders begin to operate, promote No. two piston rods and move down, under the sliding fit of slider and slide rail board, supplementary concave plate moves down, make the template that closes move down slowly and get into in the bed die, carry out compound die and seal the compression molding, after the shaping, start No. two cylinders earlier, retrieve No. two piston rods slowly, make template and lower mould separation close, utilize ejecting bolt threaded connection to go up mould and ejecting piece after then, start a cylinder, withdraw a piston rod fast, make the mould reset, simultaneously under the sliding fit of ejecting block and ejecting groove, the layer board follows the drawing of patterns of mould after the realization shaping, and convenient to use, this device is through quick lifting unit when using, the closed speed control of lower mould when contacting, the air can avoid the raw materials to follow the overflow because of the raw materials and overflow rapidly.

Drawings

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

FIG. 2 is a schematic view of the lower mold structure of the present invention;

FIG. 3 is a schematic view of the structure of the fast lifting assembly of the present invention;

fig. 4 is the structural schematic diagram of the slow lifting assembly of the present invention.

The numbering in the figures illustrates:

1. the forming frame 2, the lower die 3, the upper die 4, the supporting rod 5, the control panel 6, the die closing plate 7, the exhaust port 8, the top plate 9, the first cylinder 10, the first piston rod 11, the connecting frame 12, the second cylinder 13, the second piston rod 14, the sliding rail plate 15, the sliding block 16, the concave plate 17, the ejection groove 18, the ejection block 19, the supporting plate 20 and the ejection bolt.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

as shown in fig. 1, 2 and 3, a control panel 5 is installed on the side surface of a forming frame 1, a lower die 2 is installed at the center of the top end of the forming frame 1, support rods 4 are fixed at four corners of the top end of the forming frame 1, a fast lifting assembly is installed at the top end of each support rod 4, a slow lifting assembly is installed below the fast lifting assembly, an upper die 3 is installed below the slow lifting assembly, a die closing plate 6 is installed at the center of the bottom end of the upper die 3, an exhaust port 7 is formed in the top end of the die closing plate 6, an electromagnetic control valve is installed in the exhaust port 7, the fast lifting assembly comprises a top plate 8, a first cylinder 9, a first piston rod 10 and a connecting frame 11, the top plate 8 is fixed at the top end of the support rods 4 in a threaded manner, the first cylinder 9 is installed at the center of the top end of the top plate 8, the first piston rod 10 moves in the first cylinder 9, the connecting frame 11 is fixed at the bottom end of the first cylinder 9, the connecting frame 11 is an inverted concave frame, the upper die 3 is a reverse frame and is fixed at the bottom end of the connecting frame 11 in a threaded manner, and the width of the upper die 3 is greater than the connecting frame 11; when in use, the non-production time is shortened through the quick lifting assembly;

as shown in fig. 4, the slow lifting assembly includes a second cylinder 12, a second piston rod 13, a slide rail plate 14, a slider 15 and a concave plate 16, the second cylinder 12 is installed at the center of the bottom end of the inner cavity of the connecting frame 11, the second piston rod 13 is movable in the second cylinder 12, the telescopic speed of the second piston rod 13 is slower than that of the first piston rod 9, the slide rail plates 14 are symmetrically fixed at two sides of the center of the connecting frame 11, the slider 15 slides on the slide rail plate 14, the concave plate 16 is installed between the sliders 15 and connected with the second piston rod 13, the height sum of the concave plate 16 and the slider 15 is equal to that of the slide rail plate 14, and the mold clamping plate 6 is fixed at the center of the bottom end of the concave plate 16; the closing speed of the upper die and the lower die in contact is controlled by the slow lifting assembly, so that the problem that the raw material overflows along with the overflow due to the rapid overflow of air caused by too fast die assembly can be avoided;

as shown in fig. 2, an ejection assembly is installed inside the lower die 2, the ejection assembly includes ejection slots 17, ejection blocks 18, a supporting plate 19 and ejection bolts 20, the ejection slots 17 are symmetrically arranged on the inner wall of the lower die 2, the ejection blocks 18 slide in the ejection slots 17, the supporting plate 19 is fixed between the ejection blocks 19, and the ejection bolts 20 are in threaded connection with the upper die 3 and the ejection blocks 18; the upper die 3 and the ejection block 18 are connected through the ejection bolt 20 in a threaded manner, the first air cylinder 9 is started, the first piston rod 10 is quickly retracted, the upper die 3 is reset, and meanwhile, the supporting plate 19 moves upwards along with the sliding fit of the ejection block 18 and the ejection groove 17, so that the demolding of a molded object is realized, and the use is convenient;

when in use, when the PVC modified foaming material is molded, the raw materials are poured into the lower die 2, the control panel 5 is utilized to firstly control the first air cylinder 9 to work, the first piston rod 10 is pushed to move downwards quickly, the connecting frame 11 is driven to move downwards quickly, when the upper die 3 below the connecting frame 11 is contacted with the top end of the molding frame 1, the first air cylinder 9 stops working, the second air cylinder 12 starts to operate, the second piston rod 13 is pushed to move downwards, under the sliding fit of the slide block 15 and the slide rail plate 14, the auxiliary concave plate moves downwards, so that the die closing plate 6 moves downwards slowly to enter the upper die 2 for closed die molding, after molding, the second air cylinder 12 is started firstly, piston rod 13 No. two is retrieved at a slow speed for close template 6 and lower mould 2 separation, utilize ejecting bolt 20 threaded connection to go up mould 3 and ejecting piece 18 afterwards, cylinder 9 No. one is started, piston rod 10 No. one is retrieved fast, make and go up mould 3 and reset, simultaneously under the sliding fit of ejecting piece 18 and ejecting groove 17, layer board 19 follows and shifts up, realize the drawing of patterns of the article after the shaping, and convenient to use, this device shortens non-production time through quick lifting unit when using, closing speed when mould lower mould contact is gone up in control through slow lifting unit, can avoid the raw materials to spill over rapidly because of the too fast air of compound die and lead to the raw materials to follow the problem of spilling over.

The foregoing is only a preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.

Claims

PVC modified expanded material mould pressing structure, including shaping frame (1), lower mould (2), go up mould (3) and bracing piece (4), its characterized in that: the forming frame is characterized in that a control panel (5) is installed on the side face of the forming frame (1), the lower die (2) is installed at the top end center of the forming frame (1), the supporting rod (4) is fixed at the top four corners of the forming frame (1), a quick lifting assembly is installed at the top end of the supporting rod (4), the quick lifting assembly comprises a top plate (8), a cylinder (9), a piston rod (10) and a connecting frame (11), the top plate (8) is fixed at the top end of the supporting rod (4) in a threaded manner, the cylinder (9) is installed at the top end center of the top plate (8), the piston rod (10) is movable in the cylinder (9), the connecting frame (11) is fixed at the bottom end of the cylinder (9), the quick lifting assembly is installed below the quick lifting assembly, the slow lifting assembly comprises a cylinder (12), a piston rod (13), a sliding rail plate (14), a sliding block (15) and a concave plate (16), the cylinder (12) is installed at the bottom end center of an inner cavity of the connecting frame (11), the piston rod (13) is movable in the cylinder (12), the sliding block (14) is installed in the sliding plate (15), the sliding plate (16) and the sliding block (15) is connected with the concave plate (16) at the two sides of the sliding block (15), the automatic lifting device is characterized in that the upper die (3) is installed below the slow lifting assembly, a die closing plate (6) is installed at the center of the bottom end of the upper die (3), the die closing plate (6) is fixed at the center of the bottom end of the concave plate (16), an exhaust port (7) is formed in the top end of the die closing plate (6), and an electromagnetic control valve is installed in the exhaust port (7).
2. The PVC modified foamed material molded structure according to claim 1, wherein: the utility model discloses an it is characterized in that connection frame (11) are the frame of falling the spill, go up mould (3) for returning shape frame and threaded fixation in connection frame (11) bottom, the width that goes up mould (3) is greater than the width of connection frame (11).
3. The PVC modified foamed material molded structure according to claim 2, wherein: the sum of the heights of the concave plate (16) and the sliding block (15) is equal to the height of the sliding rail plate (14).
4. The PVC modified foam molding structure of claim 3 wherein: lower mould (2) internally mounted has ejecting subassembly, ejecting subassembly is including ejecting groove (17), ejecting piece (18), layer board (19) and ejecting bolt (20), ejecting groove (17) symmetry is seted up at lower mould (2) inner wall, ejecting piece (18) slide in ejecting groove (17), layer board (19) are fixed between ejecting piece (18), ejecting bolt (20) threaded connection goes up mould (3) and ejecting piece (18).