Auxiliary blank insertion device

Abstract

The present invention relates to a bottle blowing machine, and in particular to an auxiliary blank insertion device. An auxiliary blank insertion device comprises an inner guard ring arranged on a blank feed disk and an outer guard ring arranged on a guard plate, wherein the inner guard ring and the outer guard ring are located on both sides of a bottle blank mouth, and the shapes of the inner side surfaces of the inner guard ring and the outer guard ring facing the bottle blank mouth are adapted to the bottle blank mouth. The inner guard ring is in a circular ring shape, and comprises a fixed portion and a protective portion, wherein the fixed portion is fixedly connected to the blank feed disk, and the protective portion is located between the fixed portion and the bottle blank mouth. The protective portion is higher than the fixed portion, and the upper surface of the protective portion is slightly lower than the upper surface of the bottle blank mouth. An inner groove is provided on the side of the protective portion facing the bottle blank mouth. The problem of the preform being skewed and causing the blank to be not inserted into place in the prior art is solved.

Description

Technical Field

[0001] The invention relates to a bottle blowing machine, in particular to an auxiliary blank inserting device. Background Art

[0002] When the bottle blowing machine is blowing bottles, the preform needs to be heated to a certain temperature by a heater, and then sent into the mold by a robot for blow molding. The first step of heating is to correctly insert the preform into the heating mandrel, which will carry the preform to rotate and heat it in the heater. Whether the preform is inserted correctly directly affects the stability of the equipment. The traditional method uses a flat guard plate to guide the preform before inserting it, which often causes the preform to be skewed, not inserted in place, or stuck in the feed tray. Once the skewed and not inserted in place preform enters the heater, it is very easy for the preform to fall off in the heating furnace when the mandrel rotates, damaging the heating lamp, and the equipment needs to be shut down to replace the lamp.

[0003] like Figure 1-2 As shown, the preform feeding device in the prior art includes a preform feeding tray 1' and a guard plate 2'. The preform 3' moves to the insertion point for insertion under the joint action of the preform feeding tray 1' and the guard plate 2', and then is transferred out under the action of the preform discharge tray 4'. Figure 2 It can be seen from the cross-sectional view that when the preform 3' is between the preform feed tray 1' and the guard plate 2', the support ring 31' on the preform 3' is supported on the upper surfaces of the preform feed tray 1' and the guard plate 2', and there is no matching relationship between the anti-theft ring 32' of the preform 3' and the preform feed tray 1' and the guard plate 2'. Such close support by the support ring 31' is not stable enough, and the preform is easy to tilt. In addition, once the support ring 31 is damaged, the machine may get stuck.

[0004] Application number CN201420425131.X discloses a preform loading and unloading device for a bottle blowing machine, and specifically discloses that: a left feed guide plate and a right feed guide plate are installed on the frame upstream of the preform transfer plate, and the gap between the left feed guide plate and the right feed guide plate constitutes a bottle feeding channel. It can be seen from the text and drawings of the above application that the left feed guide plate and the right feed guide plate are both located below the bottle mouth of the preform, so they only play a role of guiding flow, but cannot prevent the occurrence of the situation that the preform is skewed or the preform is not inserted in place. Summary of the invention

[0005] In order to solve the problem in the prior art that the preform is skewed and thus cannot be inserted into place, the present invention proposes an auxiliary preform insertion device to solve the above technical problem. The technical solution of the present invention is as follows:

[0006] An auxiliary blank insertion device comprises an inner guard ring arranged on a blank feeding plate and an outer guard ring arranged on a guard plate, wherein the inner guard ring and the outer guard ring are located on both sides of a blank mouth of a bottle blank, and the shapes of the inner side surfaces of the inner guard ring and the outer guard ring facing the blank mouth are adapted to the blank mouth. By arranging the inner guard ring and the outer guard ring, the blank is prevented from being skewed, the blank is ensured to stand upright, and the accuracy of subsequent blank insertion is improved.

[0007] Furthermore, the inner guard ring is in a circular ring shape, and comprises a fixing portion and a protection portion, wherein the fixing portion is fixedly connected to the blank feeding disc, and the protection portion is located between the fixing portion and the blank mouth.

[0008] Furthermore, the protection part is higher than the fixing part, and the upper surface of the protection part is slightly lower than the upper surface of the mouth of the bottle blank.

[0009] Furthermore, an inner groove is formed on the side of the protection portion facing the bottle blank opening.

[0010] Furthermore, there are two inner grooves, and the two inner grooves correspond to the anti-theft ring and the support ring on the bottle blank respectively.

[0011] Furthermore, the inner protrusion located between the two inner grooves protrudes from the side surface of the protective portion facing the bottle blank opening.

[0012] Furthermore, the outer guard ring is in an arc shape, and the upper surface of the outer guard ring is slightly lower than the upper surface of the bottle blank mouth.

[0013] Furthermore, an outer groove is formed on the side of the outer guard ring facing the bottle blank opening.

[0014] Furthermore, there are two outer grooves, and the two outer grooves correspond to the anti-theft ring and the support ring on the bottle blank respectively.

[0015] Furthermore, the outer protrusion located between the two outer grooves protrudes from the side surface of the outer guard ring facing the bottle blank opening.

[0016] Based on the above technical solution, the technical effects that can be achieved by the present invention are:

[0017] 1. The auxiliary blank insertion device of the present invention can effectively prevent the blank from being in a skewed state, so that the blank can be inserted normally when the blank moves to the blank insertion port;

[0018] 2. The auxiliary blank insertion device of the present invention can ensure that the blank is in an upright state without tilting even when the support ring at the blank mouth is damaged, thereby avoiding the occurrence of the bottle blowing machine being stuck and effectively improving the production efficiency;

[0019] 3. The inner groove and the outer groove of the auxiliary blank insertion device of the present invention cooperate with the support ring and the anti-theft ring on the mouth of the bottle blank, which not only ensures the uprightness of the bottle blank, but also positions the bottle blank to prevent the bottle blank from falling off and damaging the lamp tube of the heating machine, thereby reducing waste and reducing production costs;

[0020] 4. The auxiliary blank insertion device of the present invention effectively reduces the number of failure shutdowns during actual use and improves the stability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a preform feeding device in the prior art;

[0022] Figure 2 It is a cross-sectional view of a preform on a preform feeding device in the prior art;

[0023] Figure 3 It is a structural schematic diagram of a blank feeding device with an auxiliary blank insertion device of the present invention;

[0024] Figure 4 It is a front view of the blank feeding device with the auxiliary blank insertion device of the present invention;

[0025] Figure 5 It is a cross-sectional view of a bottle blank of the present invention on a blank feeding device with an auxiliary blank insertion device;

[0026] Figure 6 It is a structural schematic diagram of the inner guard ring of the present invention;

[0027] Figure 7 is a cross-sectional view of the inner retaining ring;

[0028] Figure 8 It is a schematic structural diagram of the outer retaining ring of the present invention;

[0029] Fig. 9 is a cross-sectional view of the outer retaining ring;

[0030] In the figure: 1-feeding tray; 11-inner guard ring; 111-fixing part; 112-protecting part; 1121-inner groove; 1122-inner protrusion; 2-guard plate; 21-outer guard ring; 211-outer groove; 212-outer protrusion; 3-bottle blank; 31-support ring; 32-anti-theft ring; 4-outlet tray; A-blank insertion place; 1'-feeding tray; 2'-guard plate; 3'-bottle blank; 31'-support ring; 32'-anti-theft ring; 4'-outlet tray. DETAILED DESCRIPTION

[0031] The content of the present invention will be further described below in conjunction with the accompanying drawings.

[0032] like Figure 3-9As shown, this embodiment provides an auxiliary blank insertion device, including an inner guard ring 11 arranged on a blank feeding tray 1 and an outer guard ring 21 arranged on a guard plate 2. The inner guard ring 11 and the outer guard ring 21 are located on both sides of the blank mouth of the bottle blank 3 to ensure that the bottle blank 3 is in an upright state.

[0033] Among them, the inner guard ring 11 is fixedly arranged on the blank feed tray 1, and the inner guard ring 11 is in a circular ring shape. The inner guard ring 11 has a fixing portion 111 and a protective portion 112, wherein the fixing portion 111 is fixedly connected through the blank feed tray 1. Specifically, the fixing portion 111 and the blank feed tray 1 are fixedly connected by screws. Preferably, the fixing portion 111 and the protective portion 112 are integrally formed. The protective portion 112 is located between the fixing portion 111 and the blank mouth of the preform 3, and plays a role in limiting the blank mouth. Preferably, the upper surface of the protective portion 112 is slightly lower than the upper surface of the blank mouth, which is more conducive to inserting the blank into place; further preferably, the upper surface of the protective portion 112 is 1-2 mm lower than the upper surface of the blank mouth. Furthermore, in order to save materials, the fixing portion 111 is set lower than the protective portion 112. The preform 3 is transferred inside the protection part 112. An inner groove 1121 is provided on the inner side of the protection part 112 facing the mouth of the preform. Preferably, there are two inner grooves 1121, which are arranged circumferentially on the inner side of the protection part 112. The two inner grooves 1121 correspond to the support ring 31 and the anti-theft ring 32 at the mouth of the preform 3. Specifically, the lower inner groove 1121 is for the support ring 31 to extend into, and the upper inner groove 1121 is for the anti-theft ring 32 to extend into. An inner protrusion 1122 is provided between the two inner grooves 1121. The inner protrusion 1122 extends into the groove between the support ring 31 and the anti-theft ring 32. Preferably, the inner protrusion 1122 protrudes from the side of the protection part 112 facing the mouth of the preform. By reasonably setting the inner guard ring 11, the inner guard ring 11 can play a role in limiting the preform 3 from the inside.

[0034] The outer guard ring 21 is arranged on the guard plate 2. The outer guard ring 21 is in an arc shape and extends from the downstream of the blank inlet to the blank insertion point A, which plays a role in limiting the outer surface of the bottle blank 3. Preferably, the upper surface of the outer guard ring 21 is slightly lower than the upper surface of the bottle blank 3, which is more conducive to inserting the bottle blank in place; further preferably, the upper surface of the outer guard ring 21 is 1-2mm lower than the upper surface of the bottle blank mouth of the bottle blank 3. An outer groove 211 is arranged on the inner side of the outer guard ring 21 facing the bottle blank 3. Preferably, there are two outer grooves 211, which are arranged circumferentially on the inner side of the outer guard ring 21. The two outer grooves 211 correspond to the support ring 31 and the anti-theft ring 32 at the bottle blank mouth of the bottle blank 3 respectively. Specifically, the outer groove 211 located at the bottom is for the support ring 31 to extend into, and the outer groove 211 located at the top is for the anti-theft ring 32 to extend into. An outer protrusion 212 is provided between the two outer grooves 211. The outer protrusion 212 protrudes from the side of the outer guard ring 21 facing the bottle blank opening. By properly setting the outer guard ring 21, the outer guard ring 21 can limit the bottle blank 3 from the outside.

[0035] Preferably, the space formed between the inner groove 1121 and the outer groove 211 is slightly larger than the size of the bottle mouth of the preform 3 , otherwise, the resistance of the bottle preform 3 during the transmission process is too large, and the external wear of the bottle preform 3 may also be caused.

[0036] Based on the above structure, combined with the structure that the preform 3 has a support ring 31 and an anti-theft ring 32 at the preform opening, the working process of the auxiliary preform insertion device of the present invention is as follows: the preform 3 enters the preform feeding tray 1 from the preform feeding opening, at this time, the support ring 31 on the preform 3 is supported on the upper surface of the preform feeding tray 1 and the upper surface of the guard plate 2, and part of the support ring 31 and part of the anti-theft ring 32 of the preform 3 extend into the inner groove 1121 of the inner guard ring 11, and the preform 3 moves to the position of the outer guard ring 21 under the drive of the preform feeding tray 1, and part of the support ring 31 and part of the anti-theft ring 32 on the outer side of the preform 3 extend into the outer groove 211 of the outer guard ring 21, and part of the support ring 31 and part of the anti-theft ring 32 on the inner side of the preform 3 extend into the inner groove 1121 of the inner guard ring 11 Under the joint action of the inner guard ring 11 and the outer guard ring 21, the position of the preform 3 is accurately limited, and driven by the preform feeding plate 1, the preform moves to the insertion position A to complete accurate preform insertion. After the preform insertion is completed, the preform 3 is driven by the preform discharge plate 4 to rotate and heat in the heating machine.

[0037] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. An auxiliary blank insertion device, characterized in that: The invention comprises an inner protective ring (11) arranged on a blank feeding plate (1) and an outer protective ring (21) arranged on a protective plate (2), wherein the inner protective ring (11) and the outer protective ring (21) are located on both sides of a blank mouth of a blank (3), and the shapes of the sides of the inner protective ring (11) and the outer protective ring (21) facing the blank mouth are adapted to the blank mouth; The inner guard ring (11) is in the shape of a ring, and comprises a fixing portion (111) and a protection portion (112), wherein the fixing portion (111) is fixedly connected to the blank feeding plate (1), and the protection portion (112) is located between the fixing portion (111) and the blank mouth; The protection part (112) is higher than the fixing part (111), and the upper surface of the protection part is slightly lower than the upper surface of the mouth of the bottle blank; An inner groove (1121) is formed on the side of the protection portion (112) facing the bottle blank opening; There are two inner grooves (1121), and the two inner grooves (1121) correspond to the anti-theft ring (32) and the support ring (31) on the bottle blank (3), respectively; An inner protrusion (1122) located between the two inner grooves (1121) protrudes from a side surface of the protective portion (112) facing the mouth of the bottle blank; The outer protective ring (21) is in an arc shape, and the upper surface of the outer protective ring (21) is slightly lower than the upper surface of the bottle blank (3); The side of the outer guard ring (21) facing the bottle blank opening is provided with an outer groove (211); There are two outer grooves (211), and the two outer grooves (211) correspond to the anti-theft ring (32) and the support ring (31) on the bottle blank (3), respectively; An outer protrusion (212) located between the two outer grooves (211) protrudes from a side surface of the outer retaining ring (21) facing the mouth of the bottle blank; The fixing portion (111) and the blank feeding plate (1) are fixedly connected by means of screws, and the fixing portion (111) and the protection portion (112) are integrally formed; The upper surface of the protective part (112) is 1-2 mm lower than the upper surface of the mouth of the bottle blank; The fixing portion (111) is lower than the protecting portion (112).

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