Wooden tray mold pressing equipment

Abstract

The invention provides wooden tray mold pressing equipment. A lower mold assembly in the equipment comprises a bottom supporting plate, a lower mold plate, supporting columns, foot pier protrusions and a first driving unit, and a tray ejection assembly comprises a second driving unit, an ejection plate and an ejection pipe; the foot pier protrusion, the ejection pipe, the inner wall of the supporting column and the through groove in the lower die plate jointly define a die pressing space for die pressing of the tray foot pier, and the foot pier protrusion is arranged below the lower die plate, so that a tray formed through die pressing is provided with a flat upper supporting face. After mold pressing is completed, the second driving unit drives the ejection pipe to move to eject the tray, when the ejection pipe ejects the tray, the force application point of the ejection pipe is located on the lower surface of the foot pier of the tray, an annular stress face is formed, and local deformation of the ejection portion of the tray cannot be caused.

Description

Technical Field

[0001] The present application relates to the technical field of wooden pallet production equipment, and in particular to a wooden pallet molding equipment. Background Art

[0002] Wooden pallets are usually made of plant fibers such as sawdust, wood chips, wood shavings, bamboo fibers, rice husks, wheat straw, and adhesives through molding. In the prior art, such as the patent with application number 202410807133.3 and the patent name of a molded pallet mold and production process, wooden pallets usually have concave foot piers. When the pallet is molded, the lower mold is formed with a foot pier groove, and the upper mold is formed with a foot pier protrusion downward. During molding, the foot pier protrusion and the foot pier groove cooperate with each other to mold the pallet foot pier. However, when this pallet with foot piers carries similar materials such as wine bottles, due to the concave foot piers, wine bottles and other materials usually sink into the concave foot piers, affecting the stacking and transportation of materials. After the pallet is molded, a thin rod is usually used to eject the pallet from the bottom. However, when using this ejection method, due to the large local force on the pallet, it is easy to cause local deformation of the ejection part of the pallet during ejection, affecting the quality of the pallet. Summary of the invention

[0003] In order to solve the above technical problems, the present application provides a wooden pallet molding device, including a lower mold assembly and a pallet ejection assembly; the lower mold assembly includes a bottom support plate, a lower template, a pillar, a foot pier protrusion and a first drive unit; the lower template is provided with a through groove extending in the vertical direction; the pillar is arranged between the lower template and the bottom support plate, and its top is fixedly connected to the lower template, and a groove extending in the vertical direction is provided on the outer peripheral surface of the pillar; the foot pier protrusion is sleeved inside the pillar, and its bottom is fixedly connected to the bottom support plate The tray is fixedly connected; one end of the first driving unit is fixedly connected to the pillar, and the other end is fixedly connected to the bottom support plate; the tray ejection assembly includes a second driving unit, an ejection plate and an ejection tube; the ejection tube is sleeved on the outside of the foot pier protrusion; the ejection plate is sleeved on the outside of the pillar, and is fixedly connected to the foot pier protrusion through the groove on the pillar; one end of the second driving unit is fixedly connected to the bottom support plate, and the other end is fixedly connected to the ejection plate, so that the ejection tube moves toward the through groove of the lower template, so that the tray is separated from the lower template.

[0004] In some embodiments of the present application, the lower mold assembly also includes side strips, and the side strips are arranged on the four edges of the lower mold plate.

[0005] In some embodiments of the present application, the footrest protrusion has a conical top.

[0006] In some embodiments of the present application, the pillars are in multiple groups, and the multiple groups of pillars are arranged at intervals below the lower template.

[0007] In some embodiments of the present application, there are multiple first driving units, and the multiple first driving units are distributed on both sides of the lower template.

[0008] In some embodiments of the present application, the first driving unit is a pneumatic cylinder or an oil cylinder.

[0009] In some embodiments of the present application, there are multiple second drive units, and the multiple second drive units are distributed on both sides of the lower template.

[0010] In some embodiments of the present application, the second driving unit is a pneumatic cylinder or an oil cylinder.

[0011] In some embodiments of the present application, the through groove on the lower template is conical, and the size of the barrel groove gradually increases from bottom to top along the vertical direction.

[0012] In some embodiments of the present application, an upper mold assembly is further included, and the upper mold assembly is movably disposed above the lower mold assembly.

[0013] Compared with the prior art, the present invention has the following advantages and beneficial effects: in the wooden pallet molding equipment of the present application, the lower mold assembly includes a bottom support plate, a lower mold plate, a pillar, a foot pier protrusion and a first drive unit, and the pallet ejection assembly includes a second drive unit, an ejection plate and an ejection tube; the foot pier protrusion, the ejection tube, the inner wall of the pillar and the through groove on the lower mold plate together enclose a molding space for molding the pallet foot pier, and the foot pier protrusion is arranged below the lower mold plate, so that the molded pallet has a flat upper supporting surface; after the molding is completed, the ejection tube is driven by the second drive unit to move to eject the pallet, and when the ejection tube ejects the pallet, its force application point is located on the lower surface of the pallet foot pier, forming an annular force surface, which will not cause local deformation of the pallet ejection part.

[0014] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings constituting a part of this document are used to provide a further understanding of this document. The exemplary embodiments and descriptions of this document are used to explain this document and do not constitute an improper limitation on this document. In the accompanying drawings: Figure 1 is a structural schematic diagram of a wooden pallet molding device provided by an exemplary embodiment of the present application; Figure 2 is a top view of a wooden pallet molding device provided by an exemplary embodiment of the present application; Figure 3 is a front view of a wooden pallet molding device provided by an exemplary embodiment of the present application; Figure 4 yes Figure 3 Sectional view at AA; Figure 5 It is a pallet existing in the prior art; Figure 6 A pallet molded using the wooden pallet molding equipment of the present application; Figure 7 The utility model relates to a pallet molded by using the wooden pallet molding equipment of the present application.

[0016] In the figure: 101, lower template; 102, bottom support plate; 103, pillar; 104, first drive unit; 105, foot pier protrusion; 106, through groove; 107, groove; 108, side strip; 201, second driving unit; 202, ejector plate; 203, ejector tube. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application. It should be noted that, in the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other arbitrarily.

[0018] Wooden pallets are usually made of plant fibers such as sawdust, wood chips, wood shavings, bamboo fibers, rice husks, wheat straw, and adhesives through molding. In the prior art, for example, in the patent application number 202410807133.3, the patent name is a molded pallet mold and production process patent, in which wooden pallets usually have concave foot piers. When the pallet is molded, the lower mold is formed with a foot pier groove, and the upper mold is formed with a foot pier protrusion downward. During molding, the foot pier protrusion cooperates with the foot pier groove to mold the pallet foot pier. The setting of the foot pier protrusion is determined by the material of the wooden pallet. During the molding process, the compression amount of the wooden pallet is much greater than that of the plastic pallet. If the foot pier protrusion is not set for compensatory compression, the pallet foot pier cannot be well compressed during the molding process, which will result in insufficient compression of the pallet foot pier, and the density and strength of the pallet foot pier are insufficient. Therefore, the foot pier protrusion must be set during the molding process of the wooden pallet so as to perform compensatory compression on the pallet foot pier during the molding process. However, when this type of pallet with footrests is loaded with wine bottles and similar materials, Figure 5As shown in the figure, due to the concave foot pier, materials such as wine bottles usually sink into the concave foot pier, affecting the stacking and transportation of materials. After the pallet is molded, a thin rod is usually used to push the pallet out from the bottom. However, when using this ejection method, due to the large local force on the pallet, it is easy to cause local deformation of the ejection part of the pallet during ejection, affecting the quality of the pallet.

[0019] Based on this, an exemplary embodiment of the present application provides a wooden pallet molding device, in which a lower mold assembly includes a bottom support plate, a lower mold plate, a pillar, a foot pier protrusion and a first drive unit, and a pallet ejection assembly includes a second drive unit, an ejection plate and an ejection tube; the foot pier protrusion, the ejection tube, the inner wall of the pillar and the through groove on the lower mold plate together enclose a molding space for molding the pallet foot pier, and the foot pier protrusion is arranged below the lower mold plate, so that the molded pallet has a flat upper supporting surface; after the molding is completed, the ejection tube is driven to move by the second drive unit to eject the pallet, and when the ejection tube ejects the pallet, its force application point is located on the lower surface of the pallet foot pier, forming an annular force surface, which will not cause local deformation of the pallet ejection part.

[0020] An exemplary embodiment of the present application provides a wooden pallet molding device, the device comprising a lower mold assembly and a pallet ejection assembly; Figures 1 to 3As shown, the lower mold assembly includes a bottom support plate 102, a lower mold plate 101, a support column 103, a foot pier protrusion 105 and a first drive unit 104; the lower mold plate 101 is provided with a through groove 106 extending in the vertical direction; preferably, the through groove 106 on the lower mold plate 101 is conical, and the size of the barrel groove gradually increases from bottom to top along the vertical direction, so that the wooden material can be easily introduced into the through groove 106, and at the same time, it is convenient to demold the pallet foot pier after the molding is completed. There are multiple groups of pillars 103. According to the different areas of the molded pallet, the number of pallet foot piers is different, and the number of corresponding pillars 103 is also different. For example, 9 pillars 103 can be set, and the 9 groups of pillars 103 are arranged at intervals below the lower template 101, for example, arranged in 3 rows and 3 columns with equal spacing; the pillars 103 are arranged between the lower template 101 and the bottom support plate 102, and the top of the pillars is fixedly connected to the lower template 101. The outer peripheral surface of the pillars 103 is provided with a groove 107 extending in the vertical direction, and a through hole is provided inside. The groove 107 is interconnected with the through hole, and the position and size of the through hole are adapted to the position and size of the through slot 106 on the lower template 101; the foot pier protrusion 105 is sleeved inside the pillar 103, located in the through hole inside the pillar 103, and its bottom is fixedly connected to the bottom support plate 102; the foot pier protrusion 105 has a conical top, so that the foot pier protrusion 105, the ejector tube 203, and the through slot 106 on the lower template 101 together enclose a molding space for the pallet foot pier, and the molded foot pier protrusion 105 has an inner groove 107 with an opening facing downward. Preferably, the first drive unit 104 is a cylinder or an oil cylinder, one end of the first drive unit 104 is fixedly connected to the pillar 103, and the other end is fixedly connected to the bottom support plate 102. Under the drive of the first drive unit 104, the lower template 101 and the pillar 103 can move downward in the vertical direction to further compress the wood-plastic material and perform compensatory compression on the foot pier during the molding process of the wood-plastic pallet.

[0021] As mentioned in the background technology, wooden pallets are usually made of sawdust, wood chips, wood shavings, bamboo fibers, rice husks, wheat straw and other plant fibers and adhesives through molding. During the molding process of wooden pallets, the amount of compression is usually much greater than that of plastic pallets, so that a pallet with high density and high strength can be obtained. Therefore, in order to ensure that the pallet foot is compacted during the molding process, a foot protrusion 105 must be provided so that the foot is compensatingly compressed during the molding process to compact the foot. In the wooden pallet molding equipment of the present application, the foot protrusion 105 is arranged below the lower mold plate 101, so that a pallet with a flat surface can be molded between the upper mold plate and the lower mold plate 101, such as Figure 6 As shown in FIG. 1 , a pallet with a flat surface is molded using the wooden pallet molding equipment of the present application. Figure 5The pallet in the prior art shown in the figure, the upper support surface of the pallet molded by the wooden pallet molding equipment of the present application does not have a concave foot pier, and can be used to support any material. At the same time, the flat upper support surface of the pallet has a greater structural strength, and the overall structural strength of the pallet is high and not easy to deform. At the same time, the lower surface of the pallet foot pier molded by the wooden pallet molding equipment of the present application is flat, and a bottom plate can be added under the pallet foot pier, such as Figure 7 As shown, a double-sided pallet is formed to increase the structural strength of the pallet and improve the applicability and practicality of the pallet.

[0022] like Figure 3 and 4 As shown, the tray ejection assembly includes a second drive unit 201, an ejection plate 202 and an ejection tube 203; the ejection tube 203 is sleeved on the outside of the foot pier protrusion 105; the ejection plate 202 is sleeved on the outside of the support column 103, and has a connecting portion extending into the groove 107 on the support column 103, and the connecting portion passes through the groove 107 on the support column 103 and is fixedly connected to the foot pier protrusion 105; the second drive unit 201 can be a cylinder or an oil cylinder, and the protruding end of the second drive unit 201 is connected to the bottom support plate 10 2, and the other end is fixedly connected to the ejection plate 202. In this way, when the ejection tube 203 is driven by the ejection plate 202 to move toward the through slot 106 of the lower template 101, the top surface of the ejection tube 203 applies force to the pallet foot pier to eject the pallet. When the top surface of the ejection tube 203 is flush with the upper surface of the lower template 101, the pallet is completely separated from the lower template 101, so that the demoulding of the pallet is convenient and quick, and the pallet is not easily deformed during the demoulding process.

[0023] The length of the groove 107 on the pillar 103 limits the movement distance of the ejector plate 202 and the ejector tube 203. For example, when the second driving unit 201 drives the ejector plate 202 and the ejector tube 203 to move upward in the vertical direction and the top surface of the ejector tube 203 is flush with the upper surface of the lower template 101, the connecting portion of the ejector plate 202 moves to the top of the groove 107 of the pillar 103, so as to limit the second driving unit 201 from driving the ejector tube 203 to continue to move upward.

[0024] In one embodiment, the lower mold assembly further includes side strips 108, which are arranged on the edges of the lower mold plate 101. Thus, a space for accommodating wooden materials is formed between the side strips 108 and the lower mold plate 101. In order to perform uniform molding, there are multiple first drive units 104, which are distributed on both sides of the lower mold plate 101; in order to provide uniform lifting force during demoulding, there are multiple second drive units 201, which are distributed on both sides of the lower mold plate 101. Exemplarily, the first drive units 104 and the second drive units 201 are arranged at the four corners of the lower mold plate 101.

[0025] In one embodiment, the wooden pallet molding device further comprises an upper mold assembly, which is movably arranged above the lower mold assembly. The upper mold assembly and the lower mold assembly cooperate with each other to complete the molding of the pallet.

[0026] The working process of the wooden pallet molding equipment of the present application for pallet molding is as follows: When the equipment is in a stationary state, filler is placed on the lower template 101. At this time, the first driving unit 104 extends out to drive the pillar 103 and the lower template 101 away from the bottom support plate 102. The lower template 101 and the side strip 108 enclose a first space for accommodating wooden materials. The wooden materials filled in the first space form a flat upper support surface of the pallet after molding; the inner wall of the pillar 103, the ejection tube 203, the through groove 106 of the lower template 101, and the foot pier protrusion 105 enclose a second space for accommodating wooden materials. The wooden materials in the second space form the foot pier of the pallet after molding. After the filling is completed, the upper mold assembly moves downward to above the lower mold assembly, and further moves downward to compress the wooden material to form a flat upper support surface of the pallet; after completing the preset compression amount, the upper mold assembly and the lower mold assembly move downward synchronously to compensate and compress the pallet foot pier to compact the pallet foot pier to form a concave pallet foot pier with an opening downward; at this time, the bottom surface of the support 103 abuts against the bottom support plate 102, and the molding process of the pallet is completed. The pallet formed by the device of the present application has a flat upper support surface and a high-strength foot pier.

[0027] After the pallet molding is completed, the pallet is demoulded, and the upper mold assembly moves upward to the initial position; the second drive unit 201 drives the ejector plate 202 and the ejector tube 203 to move upward, and the top surface of the ejector tube 203 lifts the edge of the pallet foot pier to move the pallet upward. When the top surface of the ejector tube 203 is flush with the upper surface of the lower mold plate 101, the pallet is completely separated from the lower mold plate 101. In this way, the demoulding of the pallet is completed efficiently and quickly, and a ring-shaped force point is formed on the pallet foot pier during the demoulding process, which will not cause local deformation of the ejection part of the pallet, and the quality of the pallet is good.

[0028] In this application, the terms "comprises", "comprising" or any other variations thereof are intended to cover non-exclusive inclusion, so that an article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such article or device. In the absence of more restrictions, the elements defined by the sentence "comprising..." do not exclude the presence of other identical elements in the article or device comprising the elements.

[0029] Although the preferred embodiments of the present application have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0030] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the intention of the present application also includes these modifications and variations.

Claims

1. A wooden pallet molding equipment, characterized in that: The tray ejection assembly comprises a lower mold assembly and a tray ejection assembly; the lower mold assembly comprises a bottom support plate, a lower mold plate, a pillar, a foot pier protrusion and a first driving unit; a through groove extending in a vertical direction is provided on the lower mold plate; the pillar is arranged between the lower mold plate and the bottom support plate, and its top is fixedly connected to the lower mold plate, and a groove extending in a vertical direction is provided on the outer peripheral surface of the pillar; the foot pier protrusion is sleeved inside the pillar, and its bottom is fixedly connected to the bottom support plate; one end of the first driving unit is fixedly connected to the pillar, and the other end is fixedly connected to the bottom support plate; the tray ejection assembly comprises a second driving unit, an ejection plate and an ejection tube; the ejection tube is sleeved outside the foot pier protrusion; the ejection plate is sleeved outside the pillar, and is fixedly connected to the foot pier protrusion through the groove on the pillar; one end of the second driving unit is fixedly connected to the bottom support plate, and the other end is fixedly connected to the ejection plate, so that the ejection tube moves toward the through groove of the lower mold plate, so that the tray is separated from the lower mold plate.

2. The wooden pallet molding equipment according to claim 1, characterized in that: The lower mold assembly also includes side strips, which are arranged on the edges of the lower mold plate.

3. The wooden pallet molding equipment according to claim 1, characterized in that: The footrest protrusion has a conical top.

4. The wooden pallet molding equipment according to claim 1, characterized in that: The pillars are in multiple groups, and the multiple groups of pillars are arranged at intervals below the lower template.

5. The wooden pallet molding equipment according to claim 1, characterized in that: There are multiple first driving units, and the multiple first driving units are distributed on both sides of the lower template.

6. The wooden pallet molding equipment according to claim 5, characterized in that: The first driving unit is a pneumatic cylinder or an oil cylinder.

7. The wooden pallet molding equipment according to claim 1, characterized in that: There are multiple second driving units, and the multiple second driving units are distributed on both sides of the lower template.

8. The wooden pallet molding equipment according to claim 7, characterized in that: The second driving unit is a pneumatic cylinder or an oil cylinder.

9. The wooden pallet molding equipment according to claim 1, characterized in that: The through groove on the lower template is conical, and the size of the barrel groove gradually increases from bottom to top along the vertical direction.

10. The wooden pallet molding equipment according to claim 1, characterized in that: It also includes an upper mold assembly, which is movably arranged above the lower mold assembly.

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