阅读说明：本技术 一种保温聚氨酯海绵制作成型工艺 (Heat-preservation polyurethane sponge manufacturing and forming process ) 是由 陈曦 于 2021-07-21 设计创作，主要内容包括：本发明涉及一种保温聚氨酯海绵制作成型工艺,采用了一种海绵制作成型装置,该海绵制作成型装置包括底部机架、竖直机架、固定机构以及切割机构,本发明可以解决保温聚氨酯海绵在分切处理过程中存在的以下难题：a传统的保温聚氨酯海绵分切过程中只能对其进行单一规格的切割,当保温聚氨酯海绵切割规格不同时需要进行多次分切处理,分切消耗时长较长且工艺较为复杂,b在保温聚氨酯海绵分切过程中,由于保温聚氨酯海绵易发生形变,故保温聚氨酯海绵在分切过程中可能存在夹持不稳定的问题,保温聚氨酯海绵在分切过程中易发生相对滑动,影响保温聚氨酯海绵的分切效果。(The invention relates to a manufacturing and forming process of heat-preservation polyurethane sponge, which adopts a sponge manufacturing and forming device, wherein the sponge manufacturing and forming device comprises a bottom rack, a vertical rack, a fixing mechanism and a cutting mechanism, and the invention can solve the following problems in the cutting process of the heat-preservation polyurethane sponge: the traditional heat preservation polyurethane sponge of a can only cut the in-process and carry out the cutting of single specification to it, need cut the processing many times when heat preservation polyurethane sponge cutting specification is different, it is long longer and the technology is comparatively complicated to cut the consumption, b is at the heat preservation polyurethane sponge in-process of cutting, because the heat preservation polyurethane sponge easily takes place deformation, so the heat preservation polyurethane sponge probably has the unstable problem of centre gripping at the in-process of cutting, the heat preservation polyurethane sponge is cutting the in-process and easily takes place relative slip, influence the effect of cutting of heat preservation polyurethane sponge.)

1. The utility model provides a heat preservation polyurethane sponge preparation forming technology, this heat preservation polyurethane sponge preparation forming technology has adopted a sponge preparation forming device, and this sponge preparation forming device includes bottom frame (1), vertical frame (2), fixed establishment (3) and cutting mechanism (4), its characterized in that: the upper end surface of the bottom rack (1) is provided with a vertical rack (2), a cutting mechanism (4) is arranged between the vertical rack (2) and the bottom rack (1), and the bottom rack (1) is provided with a fixing mechanism (3); wherein:

the fixing mechanism (3) comprises a fixing plate (31), a fixing connecting frame (32), an adjusting frame (33), reset spring rods (34), a bidirectional screw rod (35) and an adjusting block (36), wherein a transverse through groove is formed in the bottom rack (1), two groups of sliding through grooves are symmetrically arranged between the upper end surface of the transverse through groove and the upper end surface of the bottom rack (1) in a front-back manner, each group of sliding through grooves are bilaterally symmetrical, the fixing connecting frame (32) is slidably arranged in the sliding through groove, the fixing plate (31) is arranged between each group of fixing connecting frames (32), the lower ends of the fixing connecting frames (32) are positioned in the transverse through groove, the adjusting frame (33) is arranged between the lower end surfaces of each group of fixing connecting frames (32), the reset spring rods (34) are symmetrically arranged in the transverse through groove in a left-right manner, one end of each reset spring rod (34) is arranged on the upper end surface of the adjusting frame (33), the other end of the reset spring rod (34) is installed on the upper end face inside the transverse through groove, the adjusting blocks (36) are symmetrically arranged in the middle of the transverse through groove in a sliding mode front and back, the opposite faces of the adjusting blocks (36) are provided with inclined plane structures, the inclined plane structures abut against the adjusting frame (33), a threaded through hole penetrates between the adjusting blocks (36) and the bottom rack (1), and the bidirectional screw rod (35) is installed inside the threaded through hole in a rotating mode;

the cutting mechanism (4) comprises an electric slider (41), a movable rack (42), a lifting cylinder (43), a lifting rack (44), a cutter rest (45), a cutting knife (46), a locking branched chain (47) and a preprocessing branched chain (48), wherein the electric slider (41) is arranged on the upper end surface in the vertical rack (2) in a sliding manner, the movable rack (42) is arranged at the lower end of the electric slider (41), the lifting cylinder (43) is arranged on the lower end surface of the movable rack (42) through a cylinder seat, the lifting rack (44) is arranged on the lower end surface of a driving shaft of the lifting cylinder (43), a dovetail-shaped groove is formed in the lower end surface of the lifting rack (44) from left to right, the cutter rest (45) is arranged in the dovetail-shaped groove, the cutting knife (46) is arranged on the lower end surface of the cutter rest (45), and a cutting groove is formed in the upper end surface of the bottom rack (1) under the cutting knife (46), a locking branched chain (47) is arranged in the lifting frame, and a pretreatment branched chain (48) is arranged on the left side of the upper end surface of the bottom rack (1);

in the process of manufacturing and molding the heat-preservation polyurethane sponge by adopting the sponge manufacturing and molding device, the method comprises the following steps:

firstly, mixing raw materials: fully stirring the foam raw materials, and pouring the raw material mixture into a forming mold;

step two, standing and forming: standing the raw material mixture, foaming and molding to obtain a preliminary heat-preservation polyurethane sponge;

step three, refining treatment: the heat-preservation polyurethane sponge is placed at the upper end of the bottom rack (1), is limited through a fixing mechanism (3), and is cut through a cutting mechanism (4);

step four, collecting and processing: and uniformly collecting and treating the cut heat-preservation polyurethane sponge.

2. The manufacturing and forming process of the heat-preservation polyurethane sponge as claimed in claim 1, which is characterized in that: the locking branched chain (47) comprises a limiting bolt (471), a moving plate (472), a locking spring rod (473) and a locking rod (474), wherein the inside of the lifting rack (44) is positioned at the upper end of a dovetail groove and is provided with a moving groove, the moving plate (472) is arranged inside the moving groove in a sliding way, the locking spring rod (473) is arranged inside the moving groove, one end of the locking spring rod (473) is arranged on the moving plate (472), the other end of the locking spring rod (473) is arranged on the inner wall of the moving groove, the limiting bolt (471) is rotatably arranged on the front end surface of the lifting rack (44), the rear end surface of the limiting bolt (471) is abutted against the moving plate (472), a movable connecting groove is arranged at the front side of the dovetail groove inside the lifting rack (44) and communicated with the moving groove, a limiting through hole is arranged between the dovetail groove and the cutter rack (45), the locking rod (474) is arranged inside the movable connecting groove, the locking rod (474) is installed on the lower end face of the movable plate (472), and the locking rod (474) and the limiting through hole are located on the same central axis.

3. The manufacturing and forming process of the heat-preservation polyurethane sponge as claimed in claim 1, which is characterized in that: pretreatment branched chain (48) including pretreatment frame (481), hot plate (482), spacing spring beam (483), limiting plate (484) and scraper blade (485), wherein pretreatment frame (481) install in bottom frame (1) upper end, pretreatment frame (481) right-hand member has evenly seted up multiunit preliminary treatment groove from preceding back, hot plate (482) are installed to preliminary treatment inslot portion left side, preliminary treatment inslot portion right side front-back symmetry is provided with two sets of spacing spring beam (483), every group spacing spring beam (483) longitudinal symmetry installs on preliminary treatment inslot wall, install limiting plate (484) on spacing spring beam (483), be provided with scraper blade (485) on limiting plate (484) opposite face.

4. The manufacturing and forming process of the heat-preservation polyurethane sponge as claimed in claim 1, which is characterized in that: the lower end face of the fixing plate (31) is uniformly provided with limiting bulges, and conical bulges are arranged below the limiting bulges.

5. The manufacturing and forming process of the heat-preservation polyurethane sponge as claimed in claim 1, which is characterized in that: pressing plates (451) are installed on the front side and the rear side of the right end of the cutter frame (45), rollers (452) are installed on the lower end faces of the pressing plates (451), and the height from the lower end faces of the rollers (452) to the bottom rack (1) is higher than the height from the lower end faces of the cutters (46) to the bottom rack (1).

6. The manufacturing and forming process of the heat-preservation polyurethane sponge as claimed in claim 3, wherein the process comprises the following steps: the opposite surface of the limiting plate (484) is provided with a rectangular groove, and the scraper (485) is clamped inside the rectangular groove.

7. The manufacturing and forming process of the heat-preservation polyurethane sponge as claimed in claim 2, wherein the process comprises the following steps: the rear end face of the locking rod (474) is provided with a circular truncated cone-shaped bulge.

8. The manufacturing and forming process of the heat-preservation polyurethane sponge as claimed in claim 1, which is characterized in that: and a cushion pad is arranged on the lower end face of the inner part of the cutting groove.

Technical Field

The invention relates to the technical field of heat-insulating polyurethane sponge, in particular to a manufacturing and forming process of heat-insulating polyurethane sponge.

Background

The heat-insulating polyurethane sponge is a synthetic material with excellent performance, which is obtained by heating, foaming and cooling raw materials such as polyester, ceramic powder, a binder, a foaming auxiliary agent and the like, has excellent performances such as light weight, low heat conductivity coefficient, good heat resistance, aging resistance, easy adhesion with other base materials, no molten drop during combustion and the like, is widely used as a heat-insulating material for roofs, walls, ceilings, floors, doors and windows of buildings, and needs to be cut according to actual needs after molding so as to reach the appropriate use specification.

At present, the following problems exist in the slitting treatment process of the heat-preservation polyurethane sponge: the traditional heat preservation polyurethane sponge of a can only cut the in-process and carry out the cutting of single specification to it, need cut the processing many times when heat preservation polyurethane sponge cutting specification is different, it is long longer and the technology is comparatively complicated to cut the consumption, b is at the heat preservation polyurethane sponge in-process of cutting, because the heat preservation polyurethane sponge easily takes place deformation, so the heat preservation polyurethane sponge probably has the unstable problem of centre gripping at the in-process of cutting, the heat preservation polyurethane sponge is cutting the in-process and easily takes place relative slip, influence the effect of cutting of heat preservation polyurethane sponge.

Disclosure of Invention

Technical problem to be solved

The invention provides a manufacturing and forming process of heat-insulating polyurethane sponge, which can solve the following problems in the slitting process of the heat-insulating polyurethane sponge: the traditional heat preservation polyurethane sponge of a can only cut the in-process and carry out the cutting of single specification to it, need cut the processing many times when heat preservation polyurethane sponge cutting specification is different, it is long longer and the technology is comparatively complicated to cut the consumption, b is at the heat preservation polyurethane sponge in-process of cutting, because the heat preservation polyurethane sponge easily takes place deformation, so the heat preservation polyurethane sponge probably has the unstable problem of centre gripping at the in-process of cutting, the heat preservation polyurethane sponge is cutting the in-process and easily takes place relative slip, influence the effect of cutting of heat preservation polyurethane sponge.

(II) technical scheme

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a heat preservation polyurethane sponge preparation forming technology, this heat preservation polyurethane sponge preparation forming technology has adopted a sponge preparation forming device, this sponge preparation forming device includes bottom frame, vertical frame, fixed establishment and cutting mechanism, bottom frame up end install vertical frame, install cutting mechanism between vertical frame and the bottom frame, install fixed establishment in the frame of bottom.

The fixing mechanism comprises a fixing plate, a fixing connecting frame, an adjusting frame, a reset spring rod, a bidirectional screw rod and an adjusting block, wherein a transverse through groove is formed in the bottom frame, two groups of sliding through grooves are symmetrically arranged between the upper end surface in the transverse through groove and the upper end surface of the bottom frame in a front-back mode, each group of sliding through grooves are symmetrically arranged in a left-right mode, the fixing connecting frame is arranged in the sliding through grooves in a sliding mode, a fixing plate is arranged between the fixing connecting frames in each group, the lower end of the fixing connecting frame is located in the transverse through groove, the adjusting frame is arranged between the lower end surfaces of the fixing connecting frames in each group, the reset spring rods are symmetrically arranged in the transverse through groove in a left-right mode, one end of each reset spring rod is arranged on the upper end surface of the adjusting frame, the other end of each reset spring rod is arranged on the upper end surface in the transverse through groove in a front-back mode, the adjusting block is symmetrically arranged in the middle of the transverse through groove in a front-back mode, and the opposite surface of each adjusting block is provided with an inclined surface structure, and the inclined plane structure supports and leans on the alignment jig, runs through between regulating block and the bottom frame and has seted up the screw thread through-hole, and two-way lead screw rotates to be installed inside the screw thread through-hole.

The cutting mechanism comprises an electric slider, a movable rack, a lifting cylinder, a lifting rack, a knife rest, a cutting knife, a locking branched chain and a pretreatment branched chain, wherein the electric slider is arranged on the upper end face inside the vertical rack in a sliding mode, the movable rack is arranged at the lower end of the electric slider, the lifting cylinder is arranged on the lower end face of the movable rack through a cylinder seat, the lifting rack is arranged on the lower end face of a driving shaft of the lifting cylinder, a dovetail-shaped groove is formed in the lower end face of the lifting rack from left to right, the knife rest is arranged inside the dovetail-shaped groove, the cutting knife is arranged on the lower end face of the knife rest, the upper end face of the bottom rack is located under the cutting knife, the locking branched chain is arranged inside the lifting rack, and the pretreatment branched chain is arranged on the left side of the upper end face of the bottom rack.

In the process of manufacturing and molding the heat-preservation polyurethane sponge by adopting the sponge manufacturing and molding device, the method comprises the following steps:

firstly, mixing raw materials: fully stirring the foam raw materials, and pouring the raw material mixture into a forming mold;

step two, standing and forming: standing the raw material mixture, foaming and molding to obtain a preliminary heat-preservation polyurethane sponge;

step three, refining treatment: placing the heat-preservation polyurethane sponge at the upper end of the bottom rack, limiting the heat-preservation polyurethane sponge through a fixing mechanism, and cutting the heat-preservation polyurethane sponge through a cutting mechanism;

step four, collecting and processing: and uniformly collecting and treating the cut heat-preservation polyurethane sponge.

Preferably, the locking branched chain comprises a limiting bolt, a moving plate, a locking spring rod and a locking rod, wherein the interior of the lifting frame is positioned at the upper end of the dovetail groove and is provided with a moving groove, the moving plate is arranged in the moving groove in a sliding way, the locking spring rod is arranged in the moving groove, one end of the locking spring rod is arranged on the moving plate, the other end of the locking spring rod is arranged on the inner wall of the moving groove, the limiting bolt is rotationally arranged on the front end surface of the lifting frame, the rear end face of the limit bolt is abutted against the movable plate, a movable connecting groove is arranged in the lifting frame and positioned at the front side of the dovetail groove, the movable connecting groove is communicated with the movable groove, a limit through hole is arranged between the dovetail groove and the knife rest in a penetrating way, the locking rod is arranged in the movable connecting groove, and the locking rod is arranged on the lower end surface of the movable plate, wherein the locking rod and the limiting through hole are positioned on the same central axis.

Preferably, the pretreatment branched chain include pretreatment frame, hot plate, spacing spring beam, limiting plate and scraper blade, wherein pretreatment frame install in bottom frame upper end, pretreatment frame right-hand member has evenly seted up multiunit preliminary treatment groove from front to back, pretreatment inslot portion installs the hot plate in the left side, pretreatment inslot portion right side front and back symmetry is provided with two sets of spacing spring beams, the spacing spring beam longitudinal symmetry of every group is installed on preliminary treatment inslot wall, install the limiting plate on the spacing spring beam, be provided with the scraper blade on the limiting plate opposite face.

Preferably, the fixed plate under the terminal surface evenly be provided with spacing arch, spacing protruding below is provided with conical arch, spacing bellied use can carry out the spacing processing of secondary to heat preservation polyurethane sponge, avoid heat preservation polyurethane sponge to take place relative slip in the course of the work, influence the stability of heat preservation polyurethane sponge, wherein conical bellied setting can play the guide effect to spacing arch, does benefit to inside spacing protruding quick entering heat preservation polyurethane sponge.

Preferably, the clamp plate is installed to knife rest right-hand member front and back both sides, the gyro wheel is installed to the terminal surface under the clamp plate, and the terminal surface is higher than the height that the terminal surface is to the bottom frame under the cutting knife under the gyro wheel, the use of clamp plate can extrude heat preservation polyurethane sponge, make heat preservation polyurethane sponge be in the compression state, it is unfavorable for the cutting of cutting knife to avoid heat preservation polyurethane sponge to be in fluffy state, wherein the use of gyro wheel avoids the damage of clamp plate to heat preservation polyurethane sponge at the removal in-process, play the guard action to heat preservation polyurethane sponge, the terminal surface is higher than the height that the terminal surface is to the bottom frame under the gyro wheel under the cutting knife can guarantee that the clamp plate is in the extrusion state to heat preservation polyurethane sponge all the time, do benefit to the cutting of cutting knife heat preservation polyurethane sponge.

Preferably, the limiting plate opposite face seted up the rectangular channel, the scraper blade joint is inside the rectangular channel, when the slag of the heat preservation polyurethane sponge of scraper blade takes place to pile up, can take off the scraper blade fast, take off and can install after clearing away the heat preservation polyurethane sponge slag on its surface fast, it is comparatively simple and convenient to operate.

Preferably, the rear end face of the locking rod is provided with a circular truncated cone-shaped bulge, the circular truncated cone-shaped bulge can play a role in guiding when the locking rod is inserted into the limiting through hole, and the phenomenon that the locking rod is required to be inserted and aligned for multiple times to influence the installation efficiency of the cutting knife is avoided.

Preferably, the inside terminal surface sets up the blotter down of cutting cut groove, it is great to avoid cutting knife amplitude of downward movement, causes cutting knife and bottom frame to bump and easily causes the damage of cutting knife.

(III) advantageous effects

1. The invention provides a manufacturing and forming process of heat-insulating polyurethane sponge, which can solve the following problems in the slitting process of the heat-insulating polyurethane sponge: the traditional heat preservation polyurethane sponge of a can only cut the in-process and carry out the cutting of single specification to it, need cut the processing many times when heat preservation polyurethane sponge cutting specification is different, it is long longer and the technology is comparatively complicated to cut the consumption, b is at the heat preservation polyurethane sponge in-process of cutting, because the heat preservation polyurethane sponge easily takes place deformation, so the heat preservation polyurethane sponge probably has the unstable problem of centre gripping at the in-process of cutting, the heat preservation polyurethane sponge is cutting the in-process and easily takes place relative slip, influence the effect of cutting of heat preservation polyurethane sponge.

2. According to the cutting mechanism designed by the invention, according to the use specification of the heat-insulating polyurethane sponge, the cutting knives are manually clamped in the dovetail grooves through the knife rest so as to adjust the distance between the cutting knives, the applicability is wider, the limiting bolts are rotated in the locking branched chains to drive the movable plate to move backwards, the locking rods are driven to be inserted into the limiting through holes in the backward moving process of the movable plate, the cutting knives can be synchronously limited and locked through the mutual matching of the locking rods and the knife rest, and the phenomenon that the cutting knives are independently limited and the installation efficiency of the cutting knives is influenced is avoided.

3. In the fixing mechanism designed by the invention, the bidirectional screw rod rotates to drive the adjusting frame to move downwards through the inclined surface structure of the adjusting block, the fixing plate is driven by the fixing connecting frame to move downwards to synchronously lock and limit the heat-insulating polyurethane sponge in the downward movement process of the adjusting frame, the limiting bulge on the lower end surface of the fixing plate is inserted into the heat-insulating polyurethane sponge through the conical bulge to further limit the heat-insulating polyurethane sponge in the cutting process, so that the heat-insulating polyurethane sponge is more stable in the locking and limiting process.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a flow chart of the manufacturing and molding process of the heat-insulating polyurethane sponge of the invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a schematic view of the left side perspective of the present invention;

FIG. 4 is a right side perspective view of the present invention;

FIG. 5 is a left side view of the interior mounting structure of the transverse channel of the present invention;

FIG. 6 is a schematic view of the internal mounting structure of the elevator frame, tool post and locking branch of the present invention;

FIG. 7 is a schematic view of the mounting structure of the adjusting bracket and the adjusting block of the present invention;

FIG. 8 is an enlarged view of a portion of the invention at A in FIG. 2;

FIG. 9 is an enlarged view of a portion of the invention at B of FIG. 4;

fig. 10 is a partial enlarged view of the invention at C of fig. 4.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.

As shown in fig. 1 to 10, a heat-insulating polyurethane sponge manufacturing and forming process adopts a sponge manufacturing and forming device, the sponge manufacturing and forming device comprises a bottom rack 1, a vertical rack 2, a fixing mechanism 3 and a cutting mechanism 4, the vertical rack 2 is installed on the upper end face of the bottom rack 1, the cutting mechanism 4 is installed between the vertical rack 2 and the bottom rack 1, and the fixing mechanism 3 is installed on the bottom rack 1.

The fixing mechanism 3 comprises a fixing plate 31, a fixing connecting frame 32, an adjusting frame 33, reset spring rods 34, a bidirectional screw 35 and an adjusting block 36, wherein a transverse through groove is formed in the bottom rack 1, two groups of sliding through grooves are symmetrically arranged between the upper end surface of the inner part of the transverse through groove and the upper end surface of the bottom rack 1 in a front-back mode, each group of sliding through grooves are bilaterally symmetrical, the fixing connecting frame 32 is arranged in the sliding through groove in a sliding mode, the fixing plate 31 is installed between the fixing connecting frames 32, the lower end of the fixing connecting frame 32 is located in the transverse through groove, the adjusting frame 33 is installed between the lower end surfaces of the fixing connecting frames 32, the reset spring rods 34 are symmetrically arranged in the transverse through groove in the left-right mode, one end of each reset spring rod 34 is installed on the upper end surface of the adjusting frame 33, the other end of each reset spring rod 34 is installed on the upper end surface of the inner part of the transverse through groove, the adjusting block 36 is symmetrically arranged in the middle part of the transverse through groove in a front-back mode, and the opposite surface of the adjusting block 36 is provided with an inclined surface structure which is abutted against the adjusting frame 33, a threaded through hole is arranged between the adjusting block 36 and the bottom frame 1 in a penetrating way, the bidirectional screw 35 is rotatably arranged in the threaded through hole, when in specific work, the molded heat-preservation polyurethane sponge is manually placed on the upper end surface of the bottom rack 1, the bidirectional screw 35 is rotated to drive the adjusting blocks 36 to move oppositely, the adjusting blocks 36 drive the adjusting frame 33 to move downwards through the inclined surface structure in the process of moving oppositely, the fixing plate 31 is driven to move downwards through the fixing connecting frame 32 in the process of moving downwards by the adjusting frame 33, the heat-preservation polyurethane sponge is limited and locked in the process of moving downwards by the fixing plate 31, the heat-preservation polyurethane sponge is prevented from sliding relatively in the cutting process, and the cutting effect of the heat-preservation polyurethane sponge is prevented from being influenced, wherein the return spring bar 34 plays a role of returning and supporting the fixed connecting frame 32 during the working process.

The cutting mechanism 4 comprises an electric slider 41, a movable rack 42, a lifting cylinder 43, a lifting rack 44, a cutter rest 45, a cutter 46, a locking branched chain 47 and a pretreatment branched chain 48, wherein the electric slider 41 is arranged on the upper end surface inside the vertical rack 2 in a sliding manner, the movable rack 42 is arranged at the lower end of the electric slider 41, the lifting cylinder 43 is arranged on the lower end surface of the movable rack 42 through a cylinder seat, the lifting rack 44 is arranged on the lower end surface of a driving shaft of the lifting cylinder 43, a dovetail-shaped groove is formed in the lower end surface of the lifting rack 44 from left to right, the cutter rest 45 is arranged inside the dovetail-shaped groove, the cutter 46 is arranged on the lower end surface of the cutter rest 45, the upper end surface of the bottom rack 1 is arranged right below the cutter 46 and provided with a cutting groove, the locking branched chain 47 is arranged inside the lifting rack, and the pretreatment branched chain 48 is arranged on the left side of the upper end surface of the bottom rack 1.

The inside terminal surface under set up the blotter of cutting cut groove, it is great to avoid cutting knife 46 downstream amplitude, causes cutting knife 46 and bottom frame 1 to bump and easily causes cutting knife 46's damage.

Pressing plates 451 are installed on the front side and the rear side of the right end of the cutter frame 45, rollers 452 are installed on the lower end face of each pressing plate 451, the height from the lower end face of each roller 452 to the bottom frame 1 is higher than that from the lower end face of each cutting knife 46 to the bottom frame 1, heat-preservation polyurethane sponge can be extruded by the aid of the pressing plates 451, and is in a compression state, the heat-preservation polyurethane sponge is prevented from being cut by the cutting knives 46 in a fluffy state, damage to the heat-preservation polyurethane sponge in the moving process of the pressing plates 451 is avoided by the aid of the rollers 452, the heat-preservation polyurethane sponge is protected, the height from the lower end face of each roller 452 to the bottom frame 1 is higher than that from the lower end face of each cutting knife 46 to the bottom frame 1, the pressing plates 451 can be always in a compression state to the heat-preservation polyurethane sponge, and cutting of the heat-preservation polyurethane sponge by the cutting knives 46 is facilitated.

The locking branch 47 includes a limit bolt 471, a moving plate 472, a locking spring rod 473 and a locking rod 474, wherein, the lifting frame 44 is internally provided with a moving groove at the upper end of the dovetail groove, the moving plate 472 is arranged in the moving groove in a sliding way, the locking spring rod 473 is arranged in the moving groove, one end of the locking spring rod 473 is arranged on the moving plate 472, the other end of the locking spring rod 473 is arranged on the inner wall of the moving groove, the limit bolt 471 is rotatably arranged on the front end surface of the lifting frame 44, the rear end face of the limit bolt 471 abuts against the moving plate 472, a moving connecting groove is arranged in the lifting frame 44 and positioned at the front side of the dovetail groove, the movable connecting groove is communicated with the movable groove, a limit through hole is arranged between the dovetail groove and the tool rest 45 in a penetrating way, the locking rod 474 is arranged inside the movable connecting groove, and the locking lever 474 is mounted on the lower end surface of the moving plate 472, wherein the locking lever 474 and the limiting through hole are located on the same central axis.

The locking lever 474 rear end face be provided with the round platform type protruding, the bellied setting of round platform type can play the guide effect when locking lever 474 inserts spacing through-hole, avoid need carry on many times to insert the alignment, influence cutting knife 46's installation effectiveness.

When the thermal insulation polyurethane sponge cutting machine works, according to the specification of the required thermal insulation polyurethane sponge, the cutting knife 46 is manually clamped in the dovetail-shaped groove through the knife rest 45, the limiting bolt 471 is rotated to drive the moving plate 472 to move, the moving plate 472 drives the locking rod 474 to be inserted into the limiting through hole in the moving process, the locking rod 474 is matched with the tool rest 45 to synchronously limit and lock the cutting knife 46, so that the cutting knife 46 is prevented from being limited independently to influence the installation efficiency of the cutting knife 46, the limiting spring rod 483 plays a role in resetting the movable plate 472 in the working process, after the cutting knife 46 is installed, the cutting knife 46 is processed through the preprocessing branched chain 48, the lifting air cylinder 43 is started to drive the cutting knife 46 to move downwards through the mutual matching of the lifting rack 44 and the knife rest 45, the electric sliding block 41 is started to drive the movable rack 42 to move at the moment, and the cutting knife 46 synchronously moves in the moving process of the movable rack 42 to cut heat-insulating polyurethane sponge.

The pretreatment branched chain 48 comprises a pretreatment rack 481, a heating plate 482, limiting spring rods 483, limiting plates 484 and scraping plates 485, wherein the pretreatment rack 481 is arranged at the upper end of a bottom rack 1, a plurality of groups of pretreatment grooves are uniformly formed in the right end of the pretreatment rack 481 from front to back, the heating plate 482 is arranged at the left side inside the pretreatment grooves, two groups of limiting spring rods 483 are symmetrically arranged at the front and back of the right side inside the pretreatment grooves, each group of limiting spring rods 483 are vertically and symmetrically arranged on the inner wall of the pretreatment grooves, the limiting plates 484 are arranged on the limiting spring rods 483, the scraping plates 485 are arranged on the opposite surfaces of the limiting plates 484, after the cutting knife 46 is installed, the cutting knife 46 moves to the inside of the pretreatment grooves and carries out heating treatment through the heating plate 482, the cutting knife 46 after the heating treatment can not have a blocking phenomenon in the cutting process of the heat-preservation polyurethane sponge, so that the cutting effect of the heat-preservation polyurethane sponge is better, after cutting 46 cuts, inside cutting 46 got back to the preliminary treatment groove again, because cutting 46 high temperature leads to its surface probably to adhere a little heat preservation polyurethane sponge slag, cutting 46 removes in-process scraper blade 485 and mutually supports through limiting spring rod 483 and limiting plate 484 and can strike off adhesion heat preservation polyurethane sponge slag on cutting 46, avoids cutting 46 surface to have the slag to influence its next result of use of cutting.

Limiting plate 484 opposite face seted up the rectangular channel, scraper blade 485 joint is inside the rectangular channel, when the slag of the heat preservation polyurethane sponge of scraper blade 485 takes place to pile up, can take off scraper blade 485 fast, take off and can install after clearing away the heat preservation polyurethane sponge slag on its surface fast, it is comparatively simple and convenient to operate.

In the process of manufacturing and molding the heat-preservation polyurethane sponge by adopting the sponge manufacturing and molding device, the method comprises the following steps:

firstly, mixing raw materials: fully stirring the foam raw materials, and pouring the raw material mixture into a forming mold;

step two, standing and forming: standing the raw material mixture, foaming and molding to obtain a preliminary heat-preservation polyurethane sponge;

step three, refining treatment: the heat-preservation polyurethane sponge is placed at the upper end of a bottom rack 1, a bidirectional screw 35 is rotated to drive an adjusting frame 33 to move downwards through an adjusting block 36, the adjusting frame 33 drives a fixing plate 31 to lock and limit the heat-preservation polyurethane sponge through a fixing connecting frame 32 in the downward movement process, a lifting cylinder 43 is started to drive a cutting knife 46 to abut against the heat-preservation polyurethane sponge through mutual matching of a lifting rack 44 and a guide frame 45, an electric slide block 41 is started to drive a moving rack 42 to move, and the cutting knife 46 synchronously moves to cut the heat-preservation polyurethane sponge;

step four, collecting and processing: and uniformly collecting and treating the cut heat-preservation polyurethane sponge.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.