An automatic packaging machine for sandpaper

Abstract

The present invention discloses an automatic packaging machine for sandpaper, which includes a paper card bin, a forming die bin, a sandpaper feeding unit, a sandpaper packing mechanism, a paper card transfer mechanism, and a forming and packaging discharging unit. The paper card transfer mechanism is reciprocally slidably arranged between the paper card bin and the forming die bin. The sandpaper feeding unit is located on one side of the forming die bin. The sandpaper packing mechanism is cooperatively arranged in the forming die bin. The forming and packaging discharging unit is located on the side opposite to the forming die bin with respect to the sandpaper feeding unit and is used to transport the packaged sandpaper away. It further includes a control unit, which is electrically or communicatively connected to the sandpaper feeding unit, the sandpaper packing mechanism, the paper card transfer mechanism, and the forming and packaging discharging unit and is used to control the operating states of the sandpaper feeding unit, the sandpaper packing mechanism, the paper card transfer mechanism, and the forming and packaging discharging unit. Compared with the prior art, the present invention improves the packaging efficiency of sandpaper.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging equipment, and in particular to an automatic packaging machine for sandpaper. Background Art

[0002] Sandpaper, commonly known as abrasive paper, is a material for grinding. It is used to grind the surfaces of metals, woods, etc. to make them smooth and shiny, and is usually made by gluing various abrasive grains on the base paper. There are various types such as diamond sandpaper, artificial diamond sandpaper, and glass sandpaper according to different abrasive substances. Dry sandpaper (wood sandpaper) is used to polish the surfaces of wood and bamboo wares, and waterproof sandpaper (water sandpaper) is used to polish the surfaces of metal or non-metal workpieces in water or oil.

[0003] A paper card is a rigid shell used for packaging sandpaper. Currently, generally, the paper card is used to package the sandpaper manually, and the working efficiency is low. Summary of the Invention

[0004] Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide an automatic packaging machine for sandpaper to solve the problem of low working efficiency in using paper cards to package sandpaper in the prior art.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions: An automatic packaging machine for sandpaper includes a paper card bin, a forming die bin, a sandpaper feeding unit, a sandpaper packing mechanism, a paper card transfer mechanism, and a forming and packaging discharging unit. The paper card transfer mechanism is reciprocally slidably arranged between the paper card bin and the forming die bin and is used to transfer the paper cards in the paper card bin to the forming die bin. The sandpaper feeding unit is located on one side of the forming die bin and is used to feed the sandpaper into the forming die bin and place it on the paper card. The sandpaper packing mechanism is cooperatively arranged in the forming die bin and is used to pack the sandpaper in such a way that the paper card is folded at both ends and adhesively joined together in an alternating manner. The forming and packaging discharging unit is located on the side of the forming die bin opposite to the sandpaper feeding unit and is used to transport the packaged sandpaper away.

[0006] It further includes a control unit, which is electrically or communicatively connected to the sandpaper feeding unit, the sandpaper packing mechanism, the paper card transfer mechanism, and the forming and packaging discharging unit and is used to control the operating states of the sandpaper feeding unit, the sandpaper packing mechanism, the paper card transfer mechanism, and the forming and packaging discharging unit.

[0007] Compared with the prior art, the present invention has the following beneficial effects:

[0008] The automatic packaging machine for sandpaper controls the sandpaper feeding unit, sandpaper packing mechanism, paper card transfer mechanism, and forming and packaging discharging unit to move in sequence. The paper card transfer mechanism transfers the paper cards in the paper card bin to the forming die bin, and then the sandpaper feeding unit feeds the sandpaper into the forming die bin and places it on the paper cards. The sandpaper packing mechanism packs the sandpaper by folding the two ends of the paper cards and bonding them together in an interleaved manner. Finally, the forming and packaging discharging unit transports the packed sandpaper away. By working in this way continuously, the packaging efficiency of the sandpaper is greatly improved. Brief Description of the Drawings

[0009] Figure 1 Structural schematic diagram of an embodiment of the present invention Figure 1 ;

[0010] Figure 2 Structural schematic diagram of an embodiment of the present invention Figure 2 ;

[0011] Figure 3 Partial structural schematic diagram of an embodiment of the present invention;

[0012] Figure 4 is Figure 3 Partial enlarged view of part A in Detailed Description of the Embodiment

[0013] The present invention will be further described in detail below through specific embodiments:

[0014] The reference numerals in the accompanying drawings of the specification include: paper card bin 1, forming die bin 2, workbench 3, vertical plate 201, horizontal plate 202, extended flat plate 4, support frame 5, die entering cylinder 6, folding pressure plate 7, support seat 8, mounting plate 9, rolling cylinder 10, roller 11, frame body 12, positioning cylinder 13, positioning plate 14, transfer cylinder 15, height adjusting cylinder 16, suction cup 17, conveyor belt 18, pushing cylinder 19, pushing seat 20.

[0015] As Figure 1 and Figure 2As shown in the figure, an embodiment of the present invention provides an automatic packaging machine for sandpaper, which includes a paper card bin 1, a forming die bin 2, a sandpaper feeding unit, a sandpaper packing mechanism, a paper card transfer mechanism, and a forming and packaging discharging unit. The paper card transfer mechanism is arranged to reciprocate between the paper card bin 1 and the forming die bin 2 and is used to transfer the paper cards in the paper card bin 1 to the forming die bin 2. The sandpaper feeding unit is located on one side of the forming die bin 2 and is used to send the sandpaper into the forming die bin 2 and place it on the paper card. The sandpaper packing mechanism is cooperatively arranged in the forming die bin 2 and is used to pack the sandpaper in such a way that the paper card is folded at both ends and adhesively joined together in a staggered manner. The forming and packaging discharging unit is located on the side of the forming die bin 2 opposite to the sandpaper feeding unit and is used to transport the packed sandpaper away. It further includes a control unit, which is electrically or communicatively connected to the sandpaper feeding unit, the sandpaper packing mechanism, the paper card transfer mechanism, and the forming and packaging discharging unit and is used to control the operating states of the sandpaper feeding unit, the sandpaper packing mechanism, the paper card transfer mechanism, and the forming and packaging discharging unit.

[0016] This automatic packaging machine for sandpaper controls the sandpaper feeding unit, the sandpaper packing mechanism, the paper card transfer mechanism, and the forming and packaging discharging unit to move in sequence through the control unit. The paper card transfer mechanism transfers the paper cards in the paper card bin 1 to the forming die bin 2, then the sandpaper feeding unit sends the sandpaper into the forming die bin 2 and places it on the paper card. The sandpaper packing mechanism packs the sandpaper in such a way that the paper card is folded at both ends and adhesively joined together in a staggered manner, and then the completed packed sandpaper is transported away by the forming and packaging discharging unit. It works continuously in this way, greatly improving the packaging efficiency of the sandpaper.

[0017] Combined with Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , according to another embodiment of the present invention, the automatic packaging machine for sandpaper further includes a workbench 3. The paper card bin 1, the forming die bin 2, the sandpaper feeding unit, the sandpaper packing mechanism, the paper card transfer mechanism, and the forming and packaging discharging unit are all arranged on the workbench 3. The forming die bin 2 is a forming groove arranged on the workbench 3 with an open top.

[0018] The workbench 3 is used to reasonably layout the paper card bin 1, the forming die bin 2, the sandpaper feeding unit, the sandpaper packing mechanism, the paper card transfer mechanism, and the forming and packaging discharging unit. The forming die bin 2 is designed as a forming groove with an open top in order to pack the sandpaper in a bent manner when the sandpaper feeding unit sends the sandpaper into the forming die bin 2 and places it on the paper card through the sandpaper packing mechanism.

[0019] Further optimize the structure of the forming groove. In the present invention, the forming groove adopted includes two vertical plates 201 arranged in parallel and at intervals on the workbench 3, and a cross plate 202 connected between the middle parts of the two vertical plates 201. A "U"-shaped forming station is formed between the cross plate 202 and the two vertical plates 201. On the separated sides of the tops of the two vertical plates 201, horizontally arranged extension flat plates 4 are fixedly connected. The roller 11 is rotatably arranged on the top of one of the extension flat plates 4. The sandpaper feeding unit and the forming and packaging discharging unit are located on different sides of the cross plate 202 and are not in line with the vertical plates 201.

[0020] Through the arrangement of the two vertical plates 201 and the cross plate 202, a "U"-shaped forming station is formed on the workbench 3 to bend and form the cardboard. When the paper card transfer mechanism transfers the cardboard from the paper card bin 1 to the "U"-shaped forming station, the two sides of the cardboard are horizontally placed on the two extension flat plates 4 through the arrangement of the two extension flat plates 4, so that the cardboard can be stably placed. At the same time, the arrangement of the two vertical plates 201 and the cross plate 202 also utilizes the arrangement of the sandpaper feeding unit and the forming and packaging discharging unit to stably transfer the sandpaper on the sandpaper feeding unit into the "U"-shaped forming station, and the sandpaper completed with packaging in the "U"-shaped forming station is transferred to the forming and packaging discharging unit and transported away.

[0021] Combined with Figure 1 、 Figure 2 、 Figure 3 and Figure 4 According to another embodiment of the present invention, the automatic packaging machine for sandpaper further includes an optimization of the structure of the sandpaper packing mechanism. The sandpaper packing mechanism adopted in the present invention includes a pressing assembly reciprocating vertically above the forming groove, a rolling assembly reciprocating in the horizontal plane where the notch of the forming groove is located on one side of the forming groove, and a dispensing assembly arranged above one side of the forming groove. And the rolling assembly is located between the sandpaper feeding unit and the forming and packaging discharging unit; the dispensing assembly is used for dispensing glue on the folded side edge of the paper card transferred to the forming die bin 2, and then the pressing assembly presses the cardboard into the forming groove, so that the two sides of the cardboard are bent and staggered together, and then the rolling assembly rolls on the cardboard to roll and bond.

[0022] The folded side edge of the paper card is dispensed with glue through the dispensing assembly, and then the pressing assembly presses the cardboard into the forming groove (i.e., the "U"-shaped forming station). The sandpaper also enters the forming groove together with the cardboard. The two sides of the cardboard are bent and contact the sandpaper, and the two ends of the cardboard are overlapped in a staggered manner; due to the design of the placement position of the cardboard, the length of the bent side of the cardboard without glue is shorter, so that the shorter side of the bent cardboard is attached to the sandpaper, and the side of the cardboard with glue is attached above after being bent with a longer length to make the glue adhere the two sides of the cardboard together; then the rolling assembly rolls on the cardboard to firmly bond the two sides of the cardboard together, and at the same time tightly clamp the sandpaper between the cardboard to complete the packaging, and then it is sent away through the forming and packaging discharging unit.

[0023] Among them, the sandpaper packaging mechanism further includes a support frame 5 fixed above the workbench 3. Specifically, the pressing component adopted includes at least one die-entry cylinder 6 fixed on the support frame 5, and a folding pressure plate 7 that moves inside and outside the forming groove is connected to the piston rod at the bottom of the die-entry cylinder 6.

[0024] Power is provided by the die-entry cylinder 6. The sandpaper together with the cardboard is pressed into the forming groove by the folding pressure plate 7. The area of the opening of the forming groove is larger than the area of the sandpaper, the length of the cardboard is larger than the length of the opening of the forming groove, and after the cardboard moves to the position of the forming groove, the length of the cardboard placed on one side of the extension flat plate 4 close to the dispensing component is greater than the length of the other side; after the folding pressure plate 7 presses the cardboard into the forming groove, the two vertical plates 201 cause the two sides of the cardboard to be bent and cross-connected together.

[0025] In this embodiment, two die-entry cylinders 6 arranged in parallel at intervals are adopted. The two die-entry cylinders 6 are located on different sides above the opening of the forming groove. The two die-entry cylinders 6 operate simultaneously to bend the cardboard through their respective folding pressure plates 7, and the stability is better.

[0026] Specifically, the rolling component adopted includes a support seat 8 fixedly arranged on the workbench 3 and a mounting plate 9 arranged on the top of the support seat 8. A rolling cylinder 10 is fixedly arranged on the mounting plate 9, and a roller 11 is rotatably connected to the piston rod of the rolling cylinder 10 through a mounting seat. The roller 11 moves in the horizontal plane where the opening of the forming groove is located.

[0027] The rolling cylinder 10 expands and contracts to adjust the roller 11 to move in the horizontal plane where the opening of the forming groove is located (that is, to move between the two extension flat plates 4), so as to firmly bond the two sides of the cardboard together, and at the same time tightly sandwich the sandpaper between the cardboard to complete the packaging.

[0028] In this embodiment, the support seat 8 includes two parallel and spaced mounting blocks. The bottom of the mounting plate 9 is slidably clamped with the two mounting blocks, and the moving mode of the mounting plate 9 on the two mounting blocks is arranged along the axial direction, which is convenient to adjust the roller 11 to a suitable position.

[0029] The dispensing component in the invention is an existing dispensing machine.

[0030] Combined Figure 3 and Figure 4 , according to another embodiment of the present invention, the automatic packaging machine for sandpaper further includes a paper card bin 1 designed on one side of one of the extension flat plates 4. The paper card bin 1 is collinear with the two extension flat plates 4. The paper card transfer mechanism linearly moves on the line connecting the paper card bin 1 and the two extension flat plates 4. A positioning component is arranged above each extension flat plate 4, and the positioning components on the two extension flat plates 4 are located on different sides of the transfer route of the paper card transfer mechanism.

[0031] The arrangement of the paper card magazine 1 and the two extended flat plates 4 is such that the paper cards are linearly moved through the paper card transfer mechanism to quickly transfer the paper cards from the paper card magazine 1 to the forming groove. The two positioning components are located on different sides of the transfer route of the paper card transfer mechanism, so that the two positioning components are arranged staggeredly at intervals to continuously position both sides of the paper card during the transfer process, making the position where the paper card is placed at the forming groove more accurate.

[0032] Each positioning component specifically adopted includes a frame body 12 connected to the workbench 3 and a positioning cylinder 13 fixedly arranged on the frame body 12. A positioning plate 14 located on one side of the transfer route of the paper card transfer mechanism is connected to the piston rod at the bottom of the positioning cylinder 13; during the transfer of the paper card by the paper card transfer mechanism, one side edge of the paper card contacts one side edge of the positioning plate 14.

[0033] The positioning cylinder 13 is used to adjust the positioning plate 14 to a suitable height, so that the two positioning plates 14 continuously position both sides of the paper card during the transfer process, making the position where the paper card is placed at the forming groove more accurate.

[0034] The side edge of the positioning plate 14 close to the forming groove is designed as a straight edge arranged along the transfer route direction of the paper card transfer mechanism, and the paper card contacts the straight edge of the positioning plate 14 during the transfer process for positioning.

[0035] Combined with Figure 1 、 Figure 2 and Figure 3 According to another embodiment of the present invention, the automatic packaging machine for sandpaper further includes a structural optimization of the paper card transfer mechanism. The paper card transfer mechanism adopted in the present invention includes a transfer cylinder 15 fixedly arranged on the support frame 5 and moving between the paper card magazine 1 and the forming die magazine 2, and a height adjustment cylinder 16 connected by a connecting plate on the moving part of the transfer cylinder 15. A plurality of suction cups 17 arranged linearly are connected to the piston rod at the bottom of the height adjustment cylinder 16 through a support plate.

[0036] A plurality of suction cups 17 are used to adsorb the paper cards placed in the forming die magazine 2. Then, the height adjustment cylinder 16 adjusts the paper cards to a suitable height. The transfer cylinder 15 extends and retracts between the paper card magazine 1 and the forming die magazine 2 to move the paper cards above the forming die magazine 2. Then, the height adjustment cylinder 16 makes the paper cards contact the two extended flat plates 4, and the paper cards contact the positioning plate 14 during the movement above the two extended flat plates 4. The plurality of suction cups 17 lose the adsorption of the paper cards, thereby placing the paper cards on the two extended flat plates 4 to complete the transfer.

[0037] Combined with Figure 1 and Figure 2, according to another embodiment of the present invention, the automatic packaging machine for sandpaper further includes structural optimizations for the sandpaper feeding unit and the forming and packaging discharging unit. In the present invention, both the sandpaper feeding unit and the forming and packaging discharging unit include a conveyor belt 18 provided on the workbench 3. The sandpaper feeding unit further includes a pushing component provided on one side of the feeding end of the conveyor belt 18 in the sandpaper feeding unit. The pushing component is used to push the sandpaper on the feeding end of the conveyor belt 18 in the sandpaper feeding unit into the forming die bin 2 and to push the sandpaper that has been packed in the forming die bin 2 onto the conveyor belt 18 of the forming and packaging discharging unit.

[0038] The conveyor belt 18 is used to provide power to continuously feed the sandpaper. Then, the pushing component pushes the sandpaper into the forming die bin 2 and onto the paper card transferred into the forming die bin 2. After the sandpaper is packaged, the pushing component pushes the packaged sandpaper out of the forming die bin 2 and onto the conveyor belt 18 of the forming and packaging discharging unit to be sent away. In this embodiment, the two conveyor belts 18 are arranged vertically.

[0039] Specifically, the pushing component adopted includes a pushing cylinder 19 connected to the workbench 3 through a base. A pushing seat 20 that slides between the two conveyor belts 18 is connected to the piston rod of the pushing cylinder 19.

[0040] The pushing cylinder 19 provides power to enable the pushing seat 20 to push the packaged sandpaper out of the forming die bin 2 and onto the conveyor belt 18 of the forming and packaging discharging unit to be sent away. And the forming die bin 2 formed by the arrangement of the cross plate 202 and the two vertical plates 201 facilitates the reasonable arrangement of the two conveyor belts 18. The end of the conveyor belt 18 for transporting the sandpaper and the head end of the conveyor belt 18 for transporting the packaged sandpaper are distributed on both sides of the cross plate 202 and are not collinear with the two vertical plates 201, so that the pushing seat 20 can push the packaged sandpaper on the cross plate 202 onto the conveyor belt 18 of the forming and packaging discharging unit without being hindered.

[0041] In the present invention, the control unit is an existing controller, which is installed in the installation cavity inside the workbench 3 and is used to control the operating states of each electrical component in the automatic packaging machine for sandpaper.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. An automatic packaging machine for sandpaper, characterized in that, It includes a paper card magazine, a forming die magazine, a sandpaper feeding unit, a sandpaper packing mechanism, a paper card transfer mechanism, and a forming and packaging discharging unit. The paper card transfer mechanism is reciprocally slidably arranged between the paper card magazine and the forming die magazine and is used to transfer the paper cards in the paper card magazine to the forming die magazine. The sandpaper feeding unit is located on one side of the forming die magazine and is used to feed the sandpaper into the forming die magazine and place it on the paper card. The sandpaper packing mechanism is cooperatively arranged in the forming die magazine and is used to pack the sandpaper in such a way that the two ends of the paper card are folded and adhesively joined in an interleaved manner. The forming and packaging discharging unit is located on the side of the forming die magazine opposite to the sandpaper feeding unit and is used to transport the packed sandpaper away; It further includes a control unit. The control unit is connected to the sandpaper feeding unit, the sandpaper packing mechanism, the paper card transfer mechanism, and the forming and packaging discharging unit by wires or communication and is used to control the operating states of the sandpaper feeding unit, the sandpaper packing mechanism, the paper card transfer mechanism, and the forming and packaging discharging unit; It further includes a workbench. The paper card magazine, the forming die magazine, the sandpaper feeding unit, the sandpaper packing mechanism, the paper card transfer mechanism, and the forming and packaging discharging unit are all arranged on the workbench. The forming die magazine is a forming groove arranged on the workbench with an open top. The sandpaper packing mechanism includes a pressing component that reciprocally moves vertically above the forming groove, a rolling component that reciprocally slides in the horizontal plane where the notch of the forming groove is located on one side of the forming groove, and a dispensing component arranged above one side of the forming groove. The rolling component is located between the sandpaper feeding unit and the forming and packaging discharging unit. The dispensing component is used to apply glue to the folded side edge of the paper card transferred to the forming die magazine. Then, the pressing component presses the paper card into the forming groove so that the two sides of the paper card are bent and interleaved. The rolling component then rolls on the paper card to roll and fix it; The sandpaper packing mechanism further includes a support frame fixed above the workbench. The pressing component includes at least one die-in cylinder fixed on the support frame. A folding pressing plate that moves inside and outside the forming groove is connected to the piston rod at the bottom of the die-in cylinder; The rolling component includes a support seat fixed on the workbench and a mounting plate arranged on the top of the support seat. A rolling cylinder is fixedly arranged on the mounting plate. The piston rod of the rolling cylinder is rotatably connected to a roller through a mounting seat. The roller moves in the horizontal plane where the notch of the forming groove is located; The forming groove includes two vertical plates arranged in parallel and spaced apart on the workbench and a horizontal plate connected between the middle parts of the two vertical plates. A "U"-shaped forming station is formed between the horizontal plate and the two vertical plates. Horizontal extension plates are fixedly connected to the separated sides at the tops of the two vertical plates. The roller is rotatably arranged on the top of one of the extension plates. The sandpaper feeding unit and the forming and packaging discharging unit are located on different sides of the horizontal plate and are not in line with the vertical plates; The paper card magazine is located on one side of one of the extension plates. The paper card magazine is collinear with the two extension plates. The paper card transfer mechanism linearly moves on the line where the paper card magazine and the two extension plates are located. Positioning components are arranged above each of the two extension plates. The positioning components on the two extension plates are located on different sides of the transfer route of the paper card transfer mechanism; Each of the positioning components includes a frame body connected to the workbench and a positioning cylinder fixedly arranged on the frame body. A positioning plate located on one side of the transfer route of the paper card transfer mechanism is connected to the piston rod at the bottom of the positioning cylinder. When the paper card transfer mechanism transfers the paper card, one side of the paper card contacts one side of the positioning plate.

2. The automatic packaging machine for sandpaper according to claim 1, wherein: The paper card transfer mechanism includes a transfer cylinder fixedly arranged on the support frame and moving between the paper card storage bin and the forming die bin, and a height adjustment cylinder connected through a connecting plate to the moving part of the transfer cylinder. A plurality of suction cups arranged linearly are connected to the piston rod at the bottom of the height adjustment cylinder through a support plate.

3. The automatic packaging machine for sandpaper according to claim 1, characterized in that: Both the abrasive paper feeding unit and the forming and packaging discharging unit include a conveyor belt arranged on the workbench. The abrasive paper feeding unit further includes a pushing component arranged on one side of the feeding end of the conveyor belt in the abrasive paper feeding unit. The pushing component is used to push the abrasive paper on the feeding end of the conveyor belt in the abrasive paper feeding unit into the forming die bin and push the abrasive paper that has been packed in the forming die bin onto the conveyor belt of the forming and packaging discharging unit.

4. The automatic packaging machine for sandpaper according to claim 3, characterized in that: The pushing component includes a pushing cylinder connected to the workbench through a base, and a pushing seat sliding between the two conveyor belts is connected to the piston rod of the pushing cylinder.

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