Mould preheating box structure

Abstract

The utility model relates to a mold preheating box body structure, wherein both side edges of two vertical plates and one bottom plate of a U-shaped plate frame of the preheating box are respectively provided with grooves, and tenon edges are provided on the surfaces of two box walls that are aligned with the grooves of the vertical plates and the bottom plate, and the tenon edges are embedded in the grooves, and a gap is reserved between the end surface of the tenon edge and the bottom surface of the groove, a gap is reserved between the two side surfaces of the tenon edge and the two side surfaces of the groove, and a gap is reserved between the end surface of the box wall beside the tenon edge and the surface of the vertical plate beside the groove. Due to the existence of the gap, when the box wall is heated and expanded, the gap can prevent the squeezing force existing in the prior art from being generated between the expanded box wall and the vertical plates and the bottom plate, thereby avoiding deformation of each structure, and the positioning column of the layer strip is embedded in the long groove, when a larger mold is hoisted out, even if the box wall has a certain friction with the mold due to expansion, the layer strip and the positioning column can ensure that the box wall will not move upward significantly due to friction.

Description

Technical Field

[0001] The utility model belongs to the technical field of mold preheating box structure improvement, in particular to a mold preheating box box body structure. Background Art

[0002] The mold preheating box is a commonly used equipment for manufacturers. Its main purpose is to heat the mold to be used to a suitable temperature, and then hoist it onto the equipment for installation and use. Its structure is: it includes a box body 5, and preheating boxes are arranged inside the two sides of the box body. The openings of the preheating boxes located on the upper end surface of the box body are provided with flaps 2, and each flap is driven to open or close by a push cylinder 1 arranged on the side of the box body. A sealing felt pad 4 is arranged on the bottom surface of the flap facing the preheating box, and a quick release wrench 3 is arranged between the flap and the box body. When in use, the flap is opened, and the overhead crane hoists the mold into the preheating box. The coils arranged on both sides of the preheating box are energized to heat up the wall of the preheating box. After being placed for a period of time, the mold and the box wall are isothermal, and the overhead crane hoists the mold out and hoists it to the corresponding station for use. In actual use, it is found that since the coils for heating are directly arranged on the outside of the two side walls of the preheating box, the box walls heat up first. Since the box walls and other parts of the preheating box are welded structures, the box walls cannot be released to both sides due to thermal expansion and can only deform to bulge into the inside of the preheating box. In severe cases, some larger molds will be stuck in the preheating box by the deformed box walls and cannot be removed. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a mold preheating box structure. In the utility model, the two side edges of the two vertical plates and one bottom plate of the U-shaped plate frame of the preheating box are respectively provided with grooves, and the surfaces of the two box walls that are aligned with the grooves of the vertical plates and the bottom plate are provided with tenon edges, which are embedded in the grooves, and a gap is reserved between the end surface of the tenon edge and the bottom surface of the groove, and a gap is reserved between the two side surfaces of the tenon edge and the two side surfaces of the groove, and a gap is reserved between the end surface of the box wall beside the tenon edge and the surface of the vertical plate beside the groove. Due to the existence of the gap, when the box wall is heated and expanded, the gap can prevent the squeezing force existing in the prior art from being generated between the expanded box wall and the vertical plate and the bottom plate, thereby avoiding deformation of each structure, and the positioning column of the pressure strip is embedded in the long groove, when a larger mold is hoisted out, even if the box wall has a certain friction with the mold due to expansion, the pressure strip and the positioning column can ensure that the box wall will not move upward significantly due to friction.

[0004] The technical solution adopted by the utility model is:

[0005] A mold preheating box body structure, characterized in that it includes a U-shaped plate frame and two box walls, grooves are respectively arranged on both sides of the vertical plates on both sides of the U-shaped plate frame, and the two sides of the box wall are respectively embedded in the grooves on the same side; a gap is left between the bottom surface of the groove and the relative surface of the embedded part of the box wall.

[0006] Further: a gap is left between the two side surfaces of the groove and the two side surfaces opposite to the embedded part of the box wall.

[0007] Further: grooves are provided at the edges of both sides of the bottom plate of the U-shaped plate frame, and both ends of the grooves are respectively connected to the grooves provided on the vertical plate on the same side;

[0008] The bottom of the box wall is embedded in the groove provided on the bottom plate.

[0009] Further: the two sides and the bottom of the box wall are respectively provided with tenon edges, and the tenon edges are embedded in the aligned grooves;

[0010] A gap is reserved between the end face of the tenon edge and the bottom face of the groove, a gap is reserved between the two side surfaces of the tenon edge and the two side surfaces of the groove, and a gap is reserved between the end surface of the box wall beside the tenon edge and the surface of the vertical plate beside the groove.

[0011] Furthermore: the upper ends of the vertical plates on both sides of the U-shaped plate frame are respectively provided with pressure strips, and the grooves provided at both ends of the pressure strips are used to avoid the grooves and tenon edges.

[0012] Further: after the two fixing bolts arranged on the pressure strip are fixed to the vertical plate, the pressure strip is fixedly connected to the vertical plate; the pressure strip can limit the rise of the box wall.

[0013] Further: a detachable positioning column is arranged on the surface of the pressure strip which is aligned with the end face of the tenon, and the front end of the positioning column extends into a vertical long groove arranged in a corresponding position on the box wall.

[0014] Furthermore, the cooperation between the long groove and the positioning column can limit the movement of the box wall in the vertical direction by a certain distance.

[0015] The advantages and positive effects of the utility model are:

[0016] In the utility model, grooves are respectively arranged on the two side edges of the two vertical plates and one bottom plate of the U-shaped plate frame of the preheating box, and tenon edges are arranged on the surfaces of the two box walls that are aligned with the grooves of the vertical plates and the bottom plate, and the tenon edges are embedded in the grooves, and a gap is reserved between the end surface of the tenon edge and the bottom surface of the groove, a gap is reserved between the two side surfaces of the tenon edge and the two side surfaces of the groove, and a gap is reserved between the end surface of the box wall beside the tenon edge and the surface of the vertical plate beside the groove. Due to the existence of the gap, when the box wall expands due to heat, the gap can prevent the squeezing force existing in the prior art from being generated between the expanded box wall and the vertical plates and the bottom plate, thereby avoiding deformation of each structure, and the positioning column of the layer strip is embedded in the long groove, when a larger mold is hoisted out, even if the box wall has a certain friction with the mold due to expansion, the layer strip and the positioning column can ensure that the box wall will not move upward significantly due to friction. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the utility model;

[0018] Figure 2 It is a three-dimensional picture of the preheating box;

[0019] Figure 3 yes Figure 2 Schematic diagram of removing two box walls;

[0020] Figure 4 yes Figure 2 A magnified view of the top;

[0021] Figure 5 yes Figure 2 An enlarged top view of the upper end;

[0022] Figure 6 yes Figure 5 The enlarged image above;

[0023] Figure 7 yes Figure 6 Left view (remove the vertical plate and rotate 90 degrees counterclockwise); DETAILED DESCRIPTION

[0024] The present invention is further described below in conjunction with the embodiments. The following embodiments are illustrative rather than restrictive, and the protection scope of the present invention cannot be limited by the following embodiments.

[0025] A mold preheating box structure, comprising a U-shaped plate frame 7 and two box walls 6, grooves 11 are respectively arranged on both sides of the vertical plates 12 on both sides of the U-shaped plate frame, and the two sides of the box wall are respectively embedded in the grooves on the same side; a gap (such as Figure 6 There is a gap between the two side surfaces of the groove and the two side surfaces of the box wall embedding part (such as Figure 6 (indicated by the middle of the middle number 17).

[0026] The bottom plate of the U-shaped plate frame is provided with grooves 11 (such as Figure 3 The two ends of the groove are respectively connected with the grooves provided on the vertical plate on the same side, and the bottom of the box wall is embedded in the groove provided on the bottom plate.

[0027] The U-shaped frame, the box wall and the pressure strip are all made of metal. The grooves at the three places of the vertical plate and the bottom plate are actually a whole, that is, the box wall 6 is as shown in FIG. Figure 2The left, right and bottom of the box are respectively embedded in the corresponding grooves, and corresponding gaps are provided, so that there is enough buffer space when the box wall expands, and there is no additional squeezing force on the vertical plate and the bottom plate due to the forward and backward heating of the heating parts.

[0028] The preferred solution is that the two sides and the bottom of the box wall are respectively provided with tenon edges 8, and the tenon edges are embedded in the aligned grooves 11. A gap is reserved between the end surface of the tenon edge and the bottom surface of the groove (such as Figure 6 The leftmost point of the middle label 17), a gap is left between the two side surfaces of the tenon edge and the two side surfaces of the groove (such as Figure 6 A gap is left between the end surface of the box wall beside the tenon edge and the surface of the vertical plate beside the groove (such as Figure 6 (the rightmost point of number 17).

[0029] The width of the tenon edge is smaller than the width of the box wall, which reduces the width of the groove, reduces the change in the strength of the vertical plate and the bottom plate caused by the slot, and provides sufficient support for the box wall. During installation and disassembly, the tenon edge facilitates the alignment of the box wall.

[0030] Sometimes the mold is relatively large. When it is hoisted into the preheating box, the two sides will press against the box wall. Since the box wall is embedded, if it is not fixed, when the mold is lifted out after heating, the friction with the box wall will cause the box wall to fall out of the groove. At this time, the following structure is used to prevent it, specifically:

[0031] The upper ends of the vertical plates on both sides of the U-shaped plate frame are respectively provided with pressure strips 10, and the grooves 18 provided at both ends of the pressure strips are used to avoid the groove and the tenon edge, and the part 15 between the two grooves 18 is pressed on the upper end surface of the vertical plate.

[0032] The lower ends of the two fixing bolts 9 provided on the pressure strip are screwed into the threaded holes 13 formed in the vertical plate, thereby fixing the pressure strip to the vertical plate. A removable positioning column 16 is provided on the surface of the pressure strip aligned with the tenon edge end face, and the front end of the positioning column extends into the vertical long groove 19 provided in the box wall. The installation method of the positioning column can be: a threaded hole is made on the pressure strip aligned with the groove 18 to penetrate there, and the positioning column is actually a bolt, which is screwed into the threaded hole and its front end extends into the long groove.

[0033] When the box wall rises together with the suspended mold due to friction, the position of the positioning column is restricted by the pressure strip, and when the positioning column hits the long groove such as Figure 7 The bottom surface shown will stop the box wall at this position until the mold is lifted out, the box wall falls, and the positioning column remains in the same position and returns to the upper position of the long groove. It can be seen that the cooperation between the long groove and the positioning column can move the box wall to the upper limit position in the vertical direction for a certain distance.

[0034] The outer surface of the box wall is still equipped with a heating coil. After the box wall and the pressure strip are installed, a circle of sealing felt pads 4 are installed at the opening of the box body 5. This sealing felt pad is aligned with the sealing felt pad on the bottom of the flip cover 2. Although there is a certain gap between the tenon edge and the groove, the above structure can still complete the preheating treatment of the mold normally. Even if the box wall is deformed, it can be lifted out separately and corrected or directly replaced with a new box wall for subsequent preheating treatment.

[0035] In the utility model, grooves are respectively arranged on the two side edges of the two vertical plates and one bottom plate of the U-shaped plate frame of the preheating box, and tenon edges are arranged on the surfaces of the two box walls that are aligned with the grooves of the vertical plates and the bottom plate, and the tenon edges are embedded in the grooves, and a gap is reserved between the end surface of the tenon edge and the bottom surface of the groove, a gap is reserved between the two side surfaces of the tenon edge and the two side surfaces of the groove, and a gap is reserved between the end surface of the box wall beside the tenon edge and the surface of the vertical plate beside the groove. Due to the existence of the gap, when the box wall expands due to heat, the gap can prevent the squeezing force existing in the prior art from being generated between the expanded box wall and the vertical plates and the bottom plate, thereby avoiding deformation of each structure, and the positioning column of the layer strip is embedded in the long groove, when a larger mold is hoisted out, even if the box wall has a certain friction with the mold due to expansion, the layer strip and the positioning column can ensure that the box wall will not move upward significantly due to friction.

Claims

1. A mold preheating box body structure, characterized in that: It comprises a U-shaped plate frame and two box walls. The vertical plates on both sides of the U-shaped plate frame are respectively provided with grooves on the sides, and the two sides of the box wall are respectively embedded in the grooves on the same side; a gap is left between the bottom surface of the groove and the relative surface of the embedded part of the box wall.

2. The mold preheating box structure according to claim 1 is characterized in that: Gaps are left between the two side surfaces of the groove and the two side surfaces opposite to the embedded part of the box wall.

3. The mold preheating box structure according to claim 2 is characterized in that: The bottom plate of the U-shaped plate frame is provided with grooves at both sides thereof, and both ends of the grooves are respectively connected with the grooves provided on the vertical plate on the same side; The bottom of the box wall is embedded in the groove provided on the bottom plate.

4. The mold preheating box structure according to claim 3 is characterized in that: The two sides and the bottom of the box wall are respectively provided with tenon edges, which are embedded in the corresponding grooves; A gap is reserved between the end face of the tenon edge and the bottom face of the groove, a gap is reserved between the two side surfaces of the tenon edge and the two side surfaces of the groove, and a gap is reserved between the end surface of the box wall beside the tenon edge and the surface of the vertical plate beside the groove.

5. The mold preheating box structure according to claim 4 is characterized in that: The upper ends of the vertical plates on both sides of the U-shaped plate frame are respectively provided with pressure strips, and the grooves provided at both ends of the pressure strips are used to avoid the grooves and the tenon edges.

6. The mold preheating box structure according to claim 5, characterized in that: After the two fixing bolts arranged on the pressure strip are fixed to the vertical plate, the pressure strip is fixedly connected to the vertical plate; the pressure strip can limit the rise of the box wall.

7. The mold preheating box structure according to claim 6 is characterized in that: A detachable positioning column is arranged on the surface of the pressure strip that is aligned with the edge end of the tenon, and the front end of the positioning column extends into a vertical long groove arranged in a corresponding position on the box wall.

8. The mold preheating box structure according to claim 7 is characterized in that: The cooperation between the long groove and the positioning column can make the box wall move a certain distance in the vertical direction.

Images